A plateau electric pressure kettle

Abstract

The present invention discloses a plateau electric pressure kettle, comprising a kettle body and a kettle lid, wherein the kettle lid comprises a safety valve, a working valve, a knob body, a knob transmission seat and a fastening structure; the knob body is mounted on the knob transmission seat and driven to rotate; the inner end of the fastening structure is connected to the knob body and driven thereby, and the outer end of the fastening structure tightens or loosens the structure of the kettle body as the knob body rotates; the kettle lid is provided with a pouring port and a water outlet, and the working valve is controlled by the knob transmission seat to seal or open the water outlet; the safety valve is detachably and movably mounted in the lid mounting seat, with its lower end communicating with the inside of the kettle and its upper end communicating with the outside of the kettle. The kettle has a plurality of working state settings, realizing functions such as opening the lid, pouring water, exhausting, and pressurizing, and is convenient to use; it can ensure that there is pressure in the kettle, ensuring that water can be heated to an ideal 100°C even in a plateau environment; it can realize control of the pressure in the kettle, avoid excessive pressure, and reduce the problem of exhaust gas injuring people.

Description

Technical Field

[0001] The present invention relates to the technical field of kettles, and in particular to a plateau electric pressure kettle. Background Art

[0002] The air in the plateau is thin and the atmospheric pressure is low. The boiling point of water decreases with increasing altitude and cannot reach 100°C. For example, in Lhasa, the boiling point is only 87°C, which does not reach the ideal inactivation temperature. Without boiling water, the purpose of high-temperature sterilization and disinfection cannot be achieved, and certain bacteria cannot be killed or the content of harmful substances can not be reduced. Drinking such water for a long time is not good for human health and is likely to cause adverse reactions. Therefore, the development of a kettle that can boil water under relatively low pressure is what is needed now. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a plateau electric pressure kettle.

[0004] The present invention is achieved through the following technical solutions: a plateau electric pressure kettle, comprising a kettle body and a kettle lid, the kettle lid comprising a lid mounting seat, a safety valve, a working valve, a knob body, a knob transmission seat, and a fastening structure for fastening or loosening the kettle body and the kettle lid; the knob body is mounted on the knob transmission seat and drives it to rotate; the inner end of the fastening structure is located in the knob transmission seat and is connected to the knob body and driven by it, and the outer end of the fastening structure fastens or loosens the structure of the kettle body as the knob body rotates; a pouring spout is pressed on the upper edge of the kettle body, and the kettle lid is provided with a pouring port and a water outlet, the pouring port is aligned with the pouring spout, and the working valve is controlled by the knob transmission seat to seal or open the water outlet; the safety valve is detachably and movably mounted in the lid mounting seat, its lower end is communicated with the inside of the kettle, and its upper end is communicated with the outside of the kettle.

[0005] The safety valve provides air and pressure relief within the kettle. The working valve and safety valve work together to maintain a sealed interior, increasing and maintaining pressure, raising the temperature to a high boiling point and ensuring boiling water. The fastening mechanism secures the lid to the kettle body, keeping the kettle airtight. The knob and actuator control the fastening mechanism and working valve.

[0006] The lid mounting seat includes a lid lower seat, a lid upper seat and a pot mouth sealing ring, the lid lower seat and the lid upper seat are buckled together, the pot mouth sealing ring is placed on the outer edge of the lid lower seat and clamped between the lid lower seat and the lid upper seat; the knob transmission seat is installed at the lower end of the knob body, the knob transmission seat and the lower end of the knob body are located between the lid lower seat and the lid upper seat, and the upper end of the knob body extends out of the pot; the working valve and the safety valve are clamped between the lid lower seat and the lid upper seat; The knob transmission seat is provided with a special-shaped eccentric groove, and the inner end of the fastening structure is provided with a cylinder, and the cylinder is stuck in the special-shaped eccentric groove and slides along it; the lower seat of the cover is provided with a sliding groove, and the outer end of the fastening structure is passed through the sliding groove and slides along it to fasten or loosen the structure of the kettle body; the knob transmission seat is provided with an exhaust top position for triggering the working valve to lift up and realize the exhaust function, and the knob transmission seat is also provided with a first pouring water pressure position for triggering the working valve to open the water outlet to realize the pouring function.

[0007] The knob transmission base is a cylindrical structure with an open top. Its bottom is defined by three eccentric grooves, one end of which extends along the inner wall of the cylindrical structure and the other end of which extends obliquely toward the inner side of the bottom. Three corresponding clamping structures are provided, each of which forms a 120-degree angle with respect to the other. A central protrusion on the bottom of the knob transmission base forms a mounting seat, with a first mounting hole defined in the center and locating posts on either side. A second mounting hole is defined in the center of the lower end of the knob body, with locating holes on either side. The knob body also includes a locating bolt, which passes through the first and second mounting holes from bottom to top and is then tightened with a nut. The locating posts are sleeved within the locating holes. The eccentric grooves are angled at both ends, forming an eccentric slot that allows the clamping structure to be extended or retracted. The locating posts are sleeved within the locating holes, and the rotation of the knob body transmits force to the locating posts, driving the knob transmission base to rotate.

[0008] A pair of limit blocks are provided on the outer periphery of the knob transmission seat, and the limit blocks are longitudinally arranged side by side on the side walls of the knob transmission seat, and a safety valve limit concave surface is formed between the two limit blocks, and the safety valve is located in the safety valve limit concave surface; a positioning groove is provided on the lower side of the upper cover seat, and a connecting column is provided on the upper side of the lower cover seat, and the positioning groove is fixed to the connecting column by bolts; the lower cover seat is provided with a working valve hole, and the working valve is fixed in the working valve hole; the safety valve is located in the safety valve limit concave surface, and the limit member can constrain the rotation range of the knob transmission seat to avoid excessive rotation; the positioning groove and the connecting column are locked by bolts, so that the upper cover seat and the lower cover seat are fixed together;

[0009] The working valve includes a valve seat, a support column, an upper valve sleeve, a valve core, an eccentric sleeve, a latch, a first spring, a first sealing ring and a second sealing ring; the water outlet is opened at the center of the valve seat and passes through the upper and lower sides thereof; there are three support columns, which surround the same circular edge of the outer periphery of the water outlet and are fixed to the valve seat, and an angle of 120 degrees is formed between adjacent support columns with the water outlet as the center; a bayonet is opened on the upper part of the support column, and its top protrudes outward to form a raised portion, and the three raised portions together constitute a first raised ring; three support members are provided at the lower part of the upper valve sleeve, and the three support members are respectively connected to the three The support columns are positioned relative to each other, and a clamping piece is provided on the support member. The support member of the upper valve sleeve is clamped on the inner side of the support column, and the clamping piece is clamped in the bayonet; the valve seat and the support column pass through the working valve hole from bottom to top, and the upper valve sleeve, the valve core, and the eccentric sleeve are assembled with the valve seat through the support member and the support column, and the diameter of the first raised ring is larger than the aperture of the working valve hole; the cooperation of the bayonet and the clamping piece ensures that the support member is firmly connected to the support column; after the upper valve sleeve and the valve seat are connected together, the diameter of the first raised ring is larger than the aperture of the working valve hole, which can prevent the working valve from falling off as a whole;

[0010] A third mounting hole is provided at the top of the upper valve sleeve, a second raised ring is provided at the lower part of the valve core, the lower end of the valve core is inserted into the water outlet, and the upper end thereof extends out of the top of the upper valve sleeve after passing through the third mounting hole, and the diameter of the second raised ring is larger than the diameter of the water outlet; the first sealing ring is sleeved on the lower part of the valve core and presses against the lower side of the second raised ring. As the valve core moves, the first sealing ring presses against or moves away from the upper side of the valve seat; the first spring is sleeved on the upper part of the valve core, and the lower end of the first spring presses against the upper side of the second raised ring. The upper end is against the top of the inner side of the upper valve sleeve; a first annular groove is provided on the inner side of the outer edge of the valve seat, and the second sealing ring is clamped in the first annular groove. The diameter of the outer edge of the valve seat is larger than the diameter of the first annular groove, and the diameter of the second sealing ring is larger than the diameter of the working valve hole; the setting of the first sealing ring can form a sealing function for the water outlet to prevent water leakage and air leakage; the setting of the first spring can push the valve core downward at all times to maintain the sealing effect on the water outlet. After exhausting or pouring water, the valve core will automatically seal the water outlet; the setting of the second sealing groove can seal the working valve hole;

[0011] The eccentric sleeve is located on the top surface of the upper valve sleeve, and the eccentric sleeve is provided with a fourth mounting hole passing through the upper and lower sides thereof, and a center hole passing through a group of opposite side edges of the eccentric sleeve, the upper end of the valve core is passed through the fourth mounting hole and is hinged to the eccentric sleeve through the pin; the other group of opposite side edges of the eccentric sleeve are respectively provided with a downwardly protruding protrusion and an outwardly protruding pressure structure, and the pressure structure includes a second water pouring pressure position and an exhaust pressure position, the second water pouring pressure position is located at the upper part of the pressure structure, and a symmetrically arranged first inclined surface is provided on both sides thereof; the exhaust pressure position is located at the lower part of the pressure structure, and a symmetrically arranged first inclined surface is provided on both sides thereof There is a symmetrically arranged second inclined surface; the protrusion presses against the top surface of the upper valve sleeve; the exhaust top position is located at the lower part of the side wall of the knob transmission seat, the first water pouring pressure position is located at the upper part of the side wall of the knob transmission seat, and the exhaust top position is located between the first water pouring pressure position and the limit block; when the knob transmission seat rotates, the first water pouring pressure position squeezes the first inclined surface of the second water pouring pressure position, or the exhaust top position squeezes the second inclined surface of the exhaust pressure position; the water pouring port is opened on the side wall of the cover upper seat, and the space between the cover lower seat and the cover upper seat is connected to the outside of the pot through the water pouring port. The valve core is hinged on the eccentric sleeve by a pin. When the exhaust top position pushes up the exhaust pressure position, the valve core can be seen to be lifted up as a whole, thereby opening the water outlet. The gas in the kettle can be discharged to the outdoors through the water outlet and the pouring spout, thereby realizing the exhaust and pressure relief function; when the first pouring water pressure position squeezes the inclined surface of the second pouring water pressure position, one end of the eccentric sleeve can be pressed down and the other end of the eccentric sleeve can be tilted up, so that the valve core cannot seal the water outlet. The working valve is a non-closed structure. Water can rush out of the water outlet into the space between the lower seat of the cover and the upper seat of the cover, and then flow out from the pouring spout, thereby realizing the pouring function.

[0012] The cam is secured to the bottom of the valve body with a spring, and the cam is secured to the bottom of the valve body with a spring, and the cam is secured to the bottom of the valve body with a spring. The cam is threadably connected to the upper portion of the valve body by a threaded connection between the external thread and the internal thread, and the fourth sealing ring is installed in the hollow cavity of the lower cylinder body, and the steel ball and the second spring are placed in the hollow cavity between the lower cylinder body and the upper cylinder body. The lower end of the steel ball presses the fourth sealing ring, the upper end of the steel ball presses the lower end of the second spring, the upper end of the second spring presses the inner wall of the upper cylinder body, and the lower side of the fourth sealing ring presses the bottom side of the hollow cavity of the lower cylinder body; the diameter of the third sealing ring is larger than the diameter of the safety valve hole, the upper end of the third sealing ring presses the lower side surface of the lower seat of the cover, and its lower end presses the upper side surface of the third raised ring; the diameter of the upper section of the upper cylinder body is larger than the diameter of the safety valve hole, and the diameter of the safety valve hole is larger than the diameter of the lower cylinder body; the top of the upper valve cap passes through the hole position of the lower seat of the cover and the hole position of the upper seat of the cover and is exposed to the outside of the kettle body. The valve cap and third sealing ring work together to seal the safety valve hole. The steel ball and fourth sealing ring work together to seal the first vent hole. When the pressure inside the kettle exceeds the set value, the air pressure pushes up the steel ball, and the gas is discharged from the kettle through the second vent hole. The diameter of the upper section of the upper cylinder is larger than the diameter of the safety valve hole to prevent the safety valve from falling. The distance from the fourth sealing ring to the upper cylinder is the range of the safety valve's lifting and lowering.

[0013] Two protective plates are mounted on the cover lower seat around the working valve hole. The working valve is located in the space between the two protective plates and the edge of the cover lower seat. The protective plates and the edge of the cover lower seat form a protective structure that keeps the working valve within the protective structure and prevents it from moving outside.

[0014] The inner side of the pot mouth is provided with a pot mouth buckle edge. The pot mouth buckle edge extends horizontally from the side wall of the pot body toward the inside of the pot, then bends downward to form a vertical buckle edge. The lower side of the vertical buckle edge bends upward toward the outside of the pot body and folds over the outer side of the vertical buckle edge. The fastening structure is a slider. The outer end of the slider forms an elliptical slider body. The upper side surface of the outer end of the slider body is flattened to form a tongue surface. The slide groove is an elliptical slide groove that matches the slider body. The slider body extends outward or contracts inward along the slide groove as the knob body rotates. After extending outward, the tongue surface is clamped on the vertical buckle edge of the pot mouth buckle edge. The tongue surface is clamped on the vertical buckle edge of the pot mouth buckle edge, which can clamp the pot lid to the pot body and prevent the lid from falling off.

[0015] A third annular groove is defined around the inner periphery of the slider body. A fifth sealing ring is positioned within the third annular groove, with the outer side of the fifth sealing ring resting against the inner wall of the chute. The fifth sealing ring eliminates any excess space between the slider body and the chute, ensuring a good seal and maintaining pressure.

[0016] A cover plate is installed on the top of the cover seat, and the cover plate is provided with a hole for the top of the upper valve cap to pass through. The cover plate is also provided with an operation mark, which includes an opening mark, a pouring mark, a stop mark, an exhaust mark, and a pressurization mark distributed in sequence. The opening mark is aligned with the hole passing through the top of the upper valve cap, and the pressurization mark is close to the first pouring water pressure position; an indicator mark is provided on the knob body, and when the rotating body is rotated to set a certain working state, the indicator mark faces the operation mark corresponding to the working state.

[0017] The knob body is a cylindrical structure with an upwardly open cavity. The opening is recessed toward the exterior of the knob body to form a stepped portion. A decorative panel is mounted within the stepped portion to seal the knob body cavity. The exterior of the knob body extends upward at an angle from its midsection, and the knob body has an inverted trapezoidal cross-section when cut longitudinally. This inverted trapezoidal cross-section facilitates lifting the lid and prevents it from falling off.

[0018] Compared with the prior art, the advantages of the present invention are: the kettle is heated by an electric heating plate and the pressure is controlled by temperature, which can ensure that there is pressure in the kettle and that the water can be heated to the ideal 100°C in a plateau environment. The temperature control device can control the pressure in the kettle, avoid excessive pressure, and reduce the problem of exhaust gas hurting people; the kettle has a variety of working state settings. When the lid is not completely separated from the kettle body, the knob on the lid is turned to realize functions such as pressurization, exhaust, pouring water, opening the lid to add water, etc., which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of an embodiment of the present invention;

[0020] Figure 2 A top view of an embodiment of the present invention;

[0021] Figure 3 A perspective view of an embodiment of the present invention;

[0022] Figure 4 A cross-sectional view of an embodiment of the present invention taken longitudinally along the direction of the spout and handle;

[0023] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0024] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0025] Figure 7 for Figure 5 A partial enlarged view of point C in the middle;

[0026] Figure 8 This is a top view of the embodiment of the present invention with the handle removed;

[0027] Figure 9 for Figure 8 Cross-sectional view along DD direction;

[0028] Figure 10 for Figure 9 A partial enlarged view of point E in the middle;

[0029] Figure 11 This is a schematic diagram of the structure of the embodiment of the present invention after removing the handle, spout, and knob body;

[0030] Figure 12 This is a schematic diagram of the structure of an embodiment of the present invention after removing the kettle handle, knob body and cover plate;

[0031] Figure 13 for Figure 12 A partial enlarged view of the upper part;

[0032] Figure 14 This is a schematic structural diagram of a kettle lid according to an embodiment of the present invention;

[0033] Figure 15 A top view of a pot lid according to an embodiment of the present invention;

[0034] Figure 16 for Figure 15 Cross-sectional view along the GG direction;

[0035] Figure 17 for Figure 16 Schematic diagram of the structure in three-dimensional orientation;

[0036] Figure 18 for Figure 15 Cross-sectional view along the FF direction;

[0037] Figure 19 for Figure 18 Schematic diagram of the structure in three-dimensional orientation;

[0038] Figure 20 for Figure 14 Schematic diagram of the structure after removing the screw cap body from the cover plate;

[0039] Figure 21 for Figure 20 a sectional view cut along the longitudinal direction;

[0040] Figure 22 for Figure 20 Top view after removing the seat cover;

[0041] Figure 23 for Figure 22 Schematic diagram of the structure in three-dimensional direction;

[0042] Figure 24 for Figure 22 Schematic diagram of the structure in another direction;

[0043] Figure 25 A top view of the seat bottom cover and the local structure in accordance with an embodiment of the present invention;

[0044] Figure 26 for Figure 25 Cross-sectional view taken along the HH direction;

[0045] Figure 27 for Figure 25 A cross-sectional view taken along direction II;

[0046] Figure 28 A three-dimensional diagram of the seat bottom cover and the local structure in accordance with an embodiment of the present invention;

[0047] Figure 29 for Figure 28 Schematic diagram of the structure after removing the local fastening structure;

[0048] Figure 30 This is a schematic structural diagram of the seat bottom cover according to an embodiment of the present invention;

[0049] Figure 31 This is a schematic structural diagram of the under-seat cover in another direction according to an embodiment of the present invention;

[0050] Figure 32 A top view of a knob transmission base according to an embodiment of the present invention;

[0051] Figure 33 This is a perspective view of a knob transmission base according to an embodiment of the present invention;

[0052] Figure 34 This is the second perspective view of the knob transmission base according to an embodiment of the present invention;

[0053] Figure 35 This is the third perspective view of the knob transmission base according to an embodiment of the present invention;

[0054] Figure 36 This is one of the three-dimensional views of the eccentric sleeve according to an embodiment of the present invention;

[0055] Figure 37 This is the second stereoscopic view of the eccentric sleeve according to an embodiment of the present invention;

[0056] Figure 38 This is a front view of a working valve according to an embodiment of the present invention;

[0057] Figure 39 for Figure 38 Cross-sectional view along the JJ direction;

[0058] Figure 40 A three-dimensional diagram of a working valve according to an embodiment of the present invention;

[0059] Figure 41 This is a schematic structural diagram of the valve core and the eccentric sleeve in accordance with an embodiment of the present invention;

[0060] Figure 42 This is a cross-sectional view of a working valve according to an embodiment of the present invention cut along the longitudinal direction;

[0061] Figure 43 This is a cross-sectional view of a safety valve according to an embodiment of the present invention cut along the longitudinal direction;

[0062] Figure 44 This is a schematic structural diagram of a fastening structure according to an embodiment of the present invention;

[0063] Figure 45 This is a cross-sectional view of the fastening structure according to an embodiment of the present invention taken along the longitudinal direction.

[0064] 1. The meaning of the reference numerals in the figure: 1. kettle body; 11. pouring spout; 12. kettle mouth buckle edge; 2. safety valve; 21. upper valve body; 211. second exhaust hole; 212. upper cylinder; 22. lower valve body; 221. third raised ring; 222. first exhaust hole; 23. second spring; 24. third sealing ring; 25. fourth sealing ring; 26. steel ball; 3. working valve; 31. valve seat; 311. water outlet; 32. support column; 321. bayonet; 322. raised part; 33. upper valve sleeve; 331. support member; 332. clamping member; 34. valve core; 341. second raised ring; 35. eccentric sleeve; 351. center hole; 352. bump; 353. second pouring pressure position; 354. drain Air pressure position; 36. Latch; 37. First spring; 38. First sealing ring; 39. Second sealing ring; 4. Knob body; 41. Positioning hole; 42. Indicator mark; 43. Decorative panel; 5. Knob transmission seat; 51. Special-shaped eccentric groove; 52. Exhaust top position; 53. First pouring water pressure position; 54. Positioning column; 55. Limit block; 56. Safety valve limit concave surface; 6. Fastening structure; 61. Cylinder; 62. Slider body; 63. Tongue surface; 64. Fifth sealing ring; 7. Cover lower seat; 71. Slide groove; 72. Connecting column; 73. Working valve hole; 74. Safety valve hole; 75. Protective plate; 8. Cover upper seat; 81. Positioning groove; 82. Cover plate; 83. Pour spout; 9. Pot mouth sealing ring. DETAILED DESCRIPTION

[0065] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0066] Example

[0067] See Figures 1 to 45 The cam 5 is a kind of plateau electric pressure kettle, comprising a kettle body 1 and a kettle lid, the kettle lid comprising a lid mounting seat, in which a safety valve 2, a working valve 3, a knob body 4, a knob transmission seat 5, and a fastening structure 6 for fastening or loosening the kettle body 1 and the kettle lid are installed; the knob body 4 is mounted on the knob transmission seat 5 and drives it to rotate; the inner end of the fastening structure 6 is located in the knob transmission seat 5 and is connected to and driven by the knob body 4, and the outer end of the fastening structure 6 tightens or loosens the structure of the kettle body 1 as the knob body 4 rotates; a pouring spout 11 is pressed on the upper edge of the kettle body 1, and the kettle lid is provided with a pouring port 83 and a water outlet 311, the pouring port 83 is aligned with the pouring spout 11, and the working valve 3 is controlled by the knob transmission seat 5 to seal or open the water outlet 311; the safety valve 2 is detachably and movably mounted in the lid mounting seat, its lower end is communicated with the inside of the kettle, and its upper end is communicated with the outside of the kettle.

[0068] The safety valve 2 provides air and pressure relief within the kettle. The working valve 3, in conjunction with the safety valve 2, maintains a sealed interior, increasing and maintaining pressure, raising the temperature within the kettle to a high boiling point and ensuring boiling water. The fastening structure 6 secures the lid to the kettle body 1, keeping the kettle airtight. The knob body 4 and knob actuator 5 control the fastening structure 6 and the working valve 3.

[0069] The lid mounting seat includes a lid lower seat 7, a lid upper seat 8 and a pot mouth sealing ring 9. The lid lower seat 7 and the lid upper seat 8 are buckled together. The pot mouth sealing ring 9 is placed on the outer edge of the lid lower seat 7 and clamped between the lid lower seat 7 and the lid upper seat 8; the knob transmission seat 5 is installed at the lower end of the knob body 4, and the knob transmission seat 5 and the lower end of the knob body 4 are located between the lid lower seat 7 and the lid upper seat 8, and the upper end of the knob body 4 extends out of the pot; the working valve 3 and the safety valve 2 are clamped between the lid lower seat 7 and the lid upper seat 8; the knob transmission seat 5 is provided with an shaped eccentric groove 51, the inner end of the fastening structure 6 is provided with a cylinder 61, the cylinder 61 is stuck in the special-shaped eccentric groove 51 and slides along it; the lower seat 7 of the cover is provided with a slide groove 71, the outer end of the fastening structure 6 is passed through the slide groove 71 and slides along it to fasten or loosen the structure of the kettle body 1; the knob transmission seat 5 is provided with an exhaust top position 52 for triggering the working valve 3 to lift up and realize the exhaust function, and the knob transmission seat 5 is also provided with a first pouring water pressure position 53 for triggering the working valve 3 to open the water outlet 311 to realize the pouring function.

[0070] The knob transmission base 5 is a cylindrical structure with an open top. Its bottom is provided with three shaped eccentric grooves 51. One end of the shaped eccentric grooves 51 extends along the inner wall of the cylindrical structure of the knob transmission base 5, and the other end extends obliquely toward the inner side of the bottom. Three corresponding clamping structures are provided, and each of the three clamping structures forms a 120-degree angle with each other. A central protrusion at the bottom of the knob transmission base 5 forms a mounting seat, with a first mounting hole in the center of the mounting seat and positioning posts 54 on either side of the first mounting hole. A second mounting hole is provided at the center of the lower end of the knob body 4, with positioning holes 41 on either side of the second mounting hole. The knob body 4 also includes a positioning bolt, which passes from bottom to top through the first and second mounting holes and is then tightened with a nut. The positioning post 54 is sleeved within the positioning hole 41. The two ends of the shaped eccentric grooves 51 form an inclined angle, forming an eccentric slot position, which allows the fastening structure 6 to be extended and retracted. The positioning post 54 is sleeved in the positioning hole 41 , and the force can be transmitted to the positioning post 54 by the rotation of the rotating body, thereby driving the knob transmission base 5 to rotate.

[0071] A pair of limit blocks 55 are provided on the outer periphery of the knob transmission seat 5. The limit blocks 55 are arranged side by side longitudinally on the side walls of the knob transmission seat 5. A safety valve limit concave surface 56 is formed between the two limit blocks 55, and the safety valve 2 is located in the safety valve limit concave surface 56; a positioning groove 81 is provided on the lower side of the cover upper seat 8, and a connecting column 72 is provided on the upper side of the cover lower seat 7. The positioning groove 81 is fixed to the connecting column 72 by bolts; the cover lower seat 7 is provided with a working valve hole 73, and the working valve 3 is fixed in the working valve hole 73; the safety valve 2 is located in the safety valve limit concave surface 56, and the limiter can constrain the rotation range of the knob transmission seat 5 to avoid excessive rotation; the positioning groove 81 and the connecting column 72 are locked by bolts, so that the cover upper seat 8 and the cover lower seat 7 are fixed together;

[0072] The working valve 3 includes a valve seat 31, a support column 32, an upper valve sleeve 33, a valve core 34, an eccentric sleeve 35, a latch 36, a first spring 37, a first sealing ring 38 and a second sealing ring 39; the water outlet 311 is provided at the center of the valve seat 31 and passes through its upper and lower sides; there are three support columns 32, which surround the same circular edge of the outer periphery of the water outlet 311 and are fixed on the valve seat 31, and adjacent support columns 32 form an angle of 120 degrees with the water outlet 311 as the center; a bayonet 32 ​​is provided on the upper part of the support column 32, and its top protrudes outward to form a raised portion 322, and the three raised portions 322 together constitute a first raised ring; three support members 331 are provided at the lower part of the upper valve sleeve 33, and the three support members 331 are respectively connected to The three support columns 32 are positioned relative to each other, and a clamping piece 332 is provided on the support member 331. The support member 331 of the upper valve sleeve 33 is clamped on the inner side of the support column 32, and the clamping piece 332 is clamped in the bayonet 321; the valve seat 31 and the support column 32 pass through the working valve hole 73 from bottom to top, and the upper valve sleeve 33, the valve core 34, and the eccentric sleeve 35 are assembled with the valve seat 31 through the support member 331 and the support column 32. The diameter of the first raised ring is larger than the aperture of the working valve hole 73; the cooperation between the bayonet 321 and the clamping piece 332 ensures that the support member 331 is firmly connected to the support column 32; after the upper valve sleeve 33 is connected to the valve seat 31, the diameter of the first raised ring is larger than the aperture of the working valve hole 73, which can prevent the working valve 3 from falling off as a whole;

[0073] A third mounting hole is provided at the top of the upper valve sleeve 33, and a second raised ring 341 is provided at the lower part of the valve core 34. The lower end of the valve core 34 is inserted into the water outlet 311, and its upper end extends out of the top of the upper valve sleeve 33 after passing through the third mounting hole. The diameter of the second raised ring 341 is larger than the diameter of the water outlet 311; the first sealing ring 38 is sleeved on the lower part of the valve core 34 and presses against the lower side of the second raised ring 341. As the valve core 34 moves, the first sealing ring 38 presses against or moves away from the upper side of the valve seat 31; the first spring 37 is sleeved on the upper part of the valve core 34, and the lower end of the first spring 37 presses against the upper side of the second raised ring 341, and the upper end of the first spring 37 presses against The top of the inner side of the upper valve sleeve 33; the inner side of the outer edge of the valve seat 31 is provided with a first annular groove, and the second sealing ring 39 is clamped in the first annular groove. The diameter of the outer edge of the valve seat 31 is larger than the diameter of the first annular groove, and the diameter of the second sealing ring 39 is larger than the diameter of the working valve hole 73; the setting of the first sealing ring 38 can form a sealing function for the water outlet 311 to prevent water leakage and air leakage; the setting of the first spring 37 can push the valve core 34 downward at all times to maintain the sealing effect on the water outlet 311. After exhausting or pouring water, the valve core 34 will automatically seal the water outlet 311; the setting of the second sealing groove can seal the working valve hole 73;

[0074] The eccentric sleeve 35 is located on the top surface of the upper valve sleeve 33. The eccentric sleeve 35 is provided with a fourth mounting hole passing through the upper and lower sides thereof, and a central hole 351 passing through a pair of opposite sides of the eccentric sleeve 35. The upper end of the valve core 34 is passed through the fourth mounting hole and is hinged to the eccentric sleeve 35 through a latch 36. The other pair of opposite sides of the eccentric sleeve 35 are respectively provided with a downwardly protruding block 352 and an outwardly protruding pressure structure. The pressure structure includes a second water pouring pressure position 353 and an exhaust pressure position 354. The second water pouring pressure position 353 is located at the upper part of the pressure structure, and a first inclined surface is symmetrically arranged on both sides thereof. The exhaust pressure position 354 is located at the lower part of the pressure structure. There are symmetrically arranged second inclined surfaces on both sides; the protrusion 352 presses against the top surface of the upper valve sleeve 33; the exhaust top position 52 is located at the lower part of the side wall of the knob transmission seat 5, the first water pouring pressure position 53 is located at the upper part of the side wall of the knob transmission seat 5, and the exhaust top position 52 is located between the first water pouring pressure position 53 and the limit block 55; when the knob transmission seat 5 rotates, the first water pouring pressure position 53 squeezes the first inclined surface of the second water pouring pressure position 353, or the exhaust top position 52 squeezes the second inclined surface of the exhaust pressure position 354; the pouring port 83 is opened on the side wall of the cover seat 8, and the space between the cover lower seat 7 and the cover upper seat 8 is connected to the outside of the pot through the pouring port 83. The valve core 34 is hinged on the eccentric sleeve 35 by the pin 36. When the exhaust top position 52 pushes up the exhaust pressure position 354, the valve core 34 can be seen to be lifted up as a whole, thereby opening the water outlet 311. The gas in the kettle can be discharged to the outdoors through the water outlet 311 and the pouring port 83, thereby realizing the exhaust and pressure relief function; when the first pouring water pressure position 53 squeezes the inclined surface of the second pouring water pressure position 353, one end of the eccentric sleeve 35 can be pressed down and the other end of the eccentric sleeve 35 can be tilted, so that the valve core 34 cannot seal the water outlet 311. The working valve 3 is a non-closed structure. Water can rush out the water outlet 311 into the space between the lower seat 7 and the upper seat 8 of the cover, and then flow out from the pouring port 83, thereby realizing the pouring function.

[0075] The lower seat 7 of the cover is also provided with a safety valve hole 74, in which the safety valve 2 is fixed; the safety valve 2 comprises an upper valve body 21, a lower valve body 22, a second spring 23, a third sealing ring 24, a fourth sealing ring 25 and a steel ball 26; the lower valve body 22 comprises a valve body cap and a lower cylinder connected to the valve body cap, the outer end of the valve body cap protrudes outward to form a circle of third raised ring 221; a circle of second annular groove is provided at the connection between the outer periphery of the lower cylinder and the valve body cap, and the third sealing ring 24 is sleeved in the second annular groove The upper part of the inner wall of the lower cylinder is provided with an internal thread. The lower cylinder is a cylinder with a hollow cavity. The valve body cap is provided with a first exhaust hole 222, and the first exhaust hole 222 is communicated with the lower cylinder. The upper valve body 21 includes an upper cylinder 212 with a hollow cavity and an upper valve cap connected thereto. The diameter of the upper valve cap is smaller than the diameter of the upper cylinder 212. The upper valve cap is provided with a second exhaust hole 211 passing through the upper and lower sides thereof. The second exhaust hole 211 is communicated with the hollow cavity of the upper cylinder 212. The lower end of the upper cylinder 212 Provided with external threads; the lower valve body 22 passes through the safety valve hole 74 from bottom to top, the upper valve body 21 is connected to the lower valve body 22 by a threaded connection between the external thread and the internal thread, the fourth sealing ring 25 is installed in the hollow cavity of the lower cylinder, the steel ball 26 and the second spring 23 are placed in the hollow cavity between the lower cylinder and the upper cylinder 212, the lower end of the steel ball 26 presses against the fourth sealing ring 25, the upper end of the steel ball 26 presses against the lower end of the second spring 23, and the upper end of the second spring 23 presses against the upper cylinder 21 2, the lower side of the fourth sealing ring 25 presses against the bottom side of the hollow cavity of the lower cylinder; the diameter of the third sealing ring 24 is larger than the diameter of the safety valve hole 74, the upper end of the third sealing ring 24 presses against the lower side of the lower cover seat 7, and its lower end presses against the upper side of the third raised ring 221; the diameter of the upper section of the upper cylinder 212 is larger than the diameter of the safety valve hole 74, and the diameter of the safety valve hole 74 is larger than the diameter of the lower cylinder; the top of the upper valve cap passes through the holes of the lower cover seat 7 and the holes of the upper cover seat 8 and is exposed to the outside of the kettle body. The valve body cap and the third sealing ring 24 cooperate to seal the safety valve hole 74; the steel ball 26 and the fourth sealing ring 25 cooperate to form a sealing effect on the first exhaust hole 222. When the pressure in the kettle exceeds the set value, the air pressure will push up the steel ball 26, and the gas will be discharged from the kettle through the second exhaust hole 211. The diameter of the upper section of the upper cylinder 212 is larger than the diameter of the safety valve hole 74, which can prevent the safety valve 2 from falling; the distance from the fourth sealing ring 25 to the upper cylinder 212 is the constraint range for the safety valve 2 to rise and fall.

[0076] A protective plate 75 is mounted on the cover lower seat 7 around the working valve hole 73. Two protective plates 75 are provided, and the working valve 3 is located in the space between the two protective plates 75 and the edge of the cover lower seat 7. The protective plates 75 and the edge of the cover lower seat 7 form a protective structure, which keeps the working valve 3 within the protective structure and prevents it from moving outside.

[0077] The inner side of the pot mouth of the kettle body 1 is provided with a spout buckle 12. The spout buckle 12 extends horizontally from the side wall of the kettle body 1 toward the inside of the kettle, then bends downward to form a vertical buckle. The lower side of the vertical buckle is bent upward toward the outside of the kettle body 1 and folded onto the outer side of the vertical buckle. The fastening structure 6 is a slider. The outer end of the slider forms an elliptical slider body 62. The upper side of the outer end of the slider body 62 is flattened to form a tongue surface 63. The chute 71 is an elliptical chute 71 that matches the slider body 62. The slider body 62 extends outward or contracts inward along the chute 71 as the knob body 4 rotates. After extending outward, the tongue surface 63 is stuck on the vertical buckle of the spout buckle 12. The tongue surface 63 is stuck on the vertical buckle of the spout buckle 12, which can lock the pot lid to the kettle body 1 and prevent the lid from falling off.

[0078] A third annular groove is defined around the inner periphery of the slider body 62. A fifth sealing ring 64 is positioned within the third annular groove, with the outer side of the fifth sealing ring 64 resting against the inner wall of the chute 71. The fifth sealing ring 64 eliminates any excess space between the slider body 62 and the chute 71, ensuring a good seal and maintaining pressure.

[0079] A cover plate 82 is installed on the top of the cover seat 8, and the cover plate 82 is provided with a hole for the top of the upper valve cap to pass through. The cover plate 82 is also provided with an operation mark, which includes an opening mark, a pouring mark, a stop mark, an exhaust mark, and a pressurization mark distributed in sequence. The opening mark is aligned with the hole passed through the top of the upper valve cap, and the pressurization mark is close to the side of the first pouring water pressure position 53; an indicator mark 42 is provided on the knob body 4. When the rotating body is rotated to set a certain working state, the indicator mark 42 faces the operation mark corresponding to the working state.

[0080] The knob body 4 is a cylindrical structure with an upwardly open cavity. The opening is recessed toward the exterior of the knob body 4 to form a stepped portion. A decorative panel 43 is mounted within the stepped portion to seal the cavity of the knob body 4. The exterior of the knob body 4 extends upward at an angle from its midsection, forming an inverted trapezoidal cross-section. This longitudinal cross-section of the knob body 4 facilitates lifting the lid and prevents it from falling off.

[0081] Installation of this embodiment:

[0082] 1) Insert the slider (fastening structure 6) into the transverse hole (slide groove 71) of the cover lower seat 7;

[0083] 2) Fix the working valve 3 to the working valve hole 73 of the cover lower seat 7;

[0084] 3) Fix the safety valve 2 in the safety valve hole 74 of the cover lower seat 7;

[0085] 4) Place the pot mouth sealing ring 9 on the lid lower seat 7;

[0086] 5) Place the knob transmission seat 5 in the center of the cover lower seat 7 and make the cylinder 61 on the slider (fastening structure 6) snap into its special-shaped groove;

[0087] 6) Fix the upper cover seat 8 and the lower cover seat 7 together;

[0088] 7) Fix the knob body 4 on the knob transmission seat 5.

[0089] The working process and working principle of this embodiment:

[0090] Put the lid on the pot body 1 so that the lid and the pot overlap.

[0091] 1) Rotate the knob body 4 to the working indication position (operation mark) to perform the corresponding operation.

[0092] 2) When rotated to the pressurized position, driven by the special-shaped eccentric groove 51 on the knob transmission seat 5, the slider extends outward and is stuck on the buckle edge 12 of the pot mouth, so that the pot lid and the pot body 1 cannot be separated. When there is pressure in the pot and reaches 4kPa, the safety valve 2 and the working valve 3 automatically rise to form a sealed space in the pot.

[0093] 3) When the kettle pressure reaches 5kPa, after the safety valve 2 rises, the upper valve body 21 and the lower valve body 22 of the safety valve 2 are stuck in the safety valve 2 limiting groove in the knob transmission seat 5, so that the knob body 4 cannot be directly rotated to the open cover position on the working indicator.

[0094] 4) When the pressure in the kettle reaches the set working pressure (pressure value range is 40-60Kpa), the air pressure pushes up the first spring 37 in the air valve of the working valve 3, and the excess air is automatically discharged from the working valve 3; when the air pressure in the kettle exceeds the working valve 3 and reaches the designed pressure value of the safety valve 2 (pressure value range is 70-100Kpa), the air pressure in the kettle will push up the second spring 23 in the safety valve 2, and the excess air pressure will be discharged from the safety valve 2 and a loud alarm sound will be issued, warning the kettle that the working pressure is too high and the heat source needs to be turned off; when the air pressure in the kettle is greater than the set pressure relief value (pressure value range is 100-150Kpa), the air pressure in the kettle will push open the kettle mouth sealing ring 9, and the excess air will be discharged from the edge of the kettle.

[0095] 5) When the knob body 4 is rotated to the exhaust position, the exhaust top position 52 on the side of the knob transmission seat 5 will press against the exhaust pressure position 354 on the exhaust button (eccentric sleeve 35) of the working valve 3. Under the eccentric action of the center hole 351 and the protrusion 352, the valve core 34 is lifted upward to realize the exhaust function.

[0096] 6) When the air pressure in the kettle is lower than 4kPa, the safety valve 2 automatically drops and separates from the safety valve 2 limit groove.

[0097] 7) When the knob body 4 is rotated to the "stop" position, the working valve 3 automatically descends.

[0098] 8) When the knob body 4 is rotated to the pouring position, the first pouring pressure position 53 on the side of the knob transmission seat 5 is automatically pressed on the second pouring pressure position 353 of the exhaust button (eccentric sleeve 35) of the working valve 3, so that when pouring water, the working valve 3 cannot rise in the flow of water to block the water outlet 311. Because the working valve 3 is a hollow design, water will flow through the hollow part of the air valve to the pouring port 83 and flow out of the spout, so that water can be poured without opening the lid, ensuring that the water temperature in the kettle will not cool down too quickly.

[0099] In this embodiment, the kettle is heated by an electric heating plate. This heating plate is a common structure in existing equipment, so a detailed structural analysis is unnecessary. Because the kettle controls pressure by temperature, the pressure inside the kettle decreases at low altitudes and increases at high altitudes.

[0100] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A plateau electric pressure kettle, comprising a kettle body and a kettle lid, characterized in that: The kettle lid comprises a lid mounting seat, in which a safety valve, a working valve, a knob body, a knob transmission seat, and a fastening structure for fastening or loosening the kettle body and the kettle lid are mounted; the knob body is mounted on the knob transmission seat and drives it to rotate; the inner end of the fastening structure is located in the knob transmission seat and is connected to and driven by the knob body, and the outer end of the fastening structure fastens or loosens the structure of the kettle body as the knob body rotates; a pouring spout is pressed on the upper edge of the kettle body, and the kettle lid is provided with a pouring port and a water outlet, the pouring port is aligned with the pouring spout, and the working valve is controlled by the knob transmission seat to seal or open the water outlet; the safety valve is detachably and movably mounted in the lid mounting seat, its lower end is communicated with the inside of the kettle, and its upper end is communicated with the outside of the kettle; The lid mounting seat includes a lid lower seat, a lid upper seat and a pot mouth sealing ring, the lid lower seat and the lid upper seat are buckled together, the pot mouth sealing ring is placed on the outer edge of the lid lower seat and clamped between the lid lower seat and the lid upper seat; the knob transmission seat is installed at the lower end of the knob body, the knob transmission seat and the lower end of the knob body are located between the lid lower seat and the lid upper seat, and the upper end of the knob body extends out of the pot; the working valve and the safety valve are clamped between the lid lower seat and the lid upper seat; The knob transmission seat is provided with a special-shaped eccentric groove, and the inner end of the fastening structure is provided with a cylinder, which is clamped in the special-shaped eccentric groove and slides along it; the lower seat of the lid is provided with a sliding groove, and the outer end of the fastening structure is passed through the sliding groove and slides along it to fasten or loosen the structure of the kettle body; the knob transmission seat is provided with an exhaust top position for triggering the working valve to lift up and realize the exhaust function, and the knob transmission seat is also provided with a first pouring pressure position for triggering the working valve to open the water outlet to realize the pouring function; The knob transmission seat is a cylindrical structure with an open top, and three special-shaped eccentric grooves are provided at its bottom, one end of the special-shaped eccentric groove extends along the inner wall of the cylindrical structure of the knob transmission seat, and the other end thereof extends obliquely toward the inner side of the bottom; three corresponding clamping structures are provided, and the three clamping structures form an angle of 120 degrees with each other; a central protrusion at the bottom of the knob transmission seat forms a mounting seat, and a first mounting hole is provided in the center of the mounting seat, and positioning columns are respectively provided on both sides of the first mounting hole; a second mounting hole is provided in the center of the lower end of the knob body, and positioning holes are respectively provided on both sides of the second mounting hole; the knob body also includes a positioning bolt, which passes through the first mounting hole and the second mounting hole from bottom to top and is then locked with a nut; the positioning column is sleeved in the positioning hole; A pair of limit blocks are provided on the outer periphery of the knob transmission seat, and the limit blocks are longitudinally arranged side by side on the side walls of the knob transmission seat, and a safety valve limit concave surface is formed between the two limit blocks, and the safety valve is located in the safety valve limit concave surface; a positioning groove is provided on the lower side of the cover upper seat, and a connecting column is provided on the upper side of the cover lower seat, and the positioning groove is fixed to the connecting column by bolts; a working valve hole is provided on the cover lower seat, and the working valve is fixed in the working valve hole; The working valve includes a valve seat, a support column, an upper valve sleeve, a valve core, an eccentric sleeve, a latch, a first spring, a first sealing ring and a second sealing ring; the water outlet is opened at the center of the valve seat and passes through the upper and lower sides thereof; there are three support columns, which surround the same circular edge of the outer periphery of the water outlet and are fixed on the valve seat, and adjacent support columns form an angle of 120 degrees with the water outlet as the center; a bayonet is opened on the upper part of the support column, and its top protrudes outward to form a convex portion, and the three convex portions together constitute a first raised ring; three support members are provided at the lower part of the upper valve sleeve, and the three support members are respectively opposite to the three support columns, and a clamp is provided on the support member, and the support member of the upper valve sleeve is clamped on the inner side of the support column, and the clamp is clamped into the bayonet; the valve seat and the support column pass through the working valve hole from bottom to top, and the upper valve sleeve, valve core, and eccentric sleeve are connected to the valve seat after being assembled with the support member and the support column. The diameter of the first raised ring is larger than the aperture of the working valve hole; A third mounting hole is provided at the top of the upper valve sleeve, and a second raised ring is provided at the lower part of the valve core. The lower end of the valve core is inserted into the water outlet, and its upper end extends out of the top of the upper valve sleeve after passing through the third mounting hole. The diameter of the second raised ring is larger than the diameter of the water outlet; the first sealing ring is sleeved on the lower part of the valve core and presses against the lower side of the second raised ring. As the valve core moves, the first sealing ring presses against or moves away from the upper side surface of the valve seat; the first spring is sleeved on the upper part of the valve core, the lower end of the first spring presses against the upper side of the second raised ring, and the upper end of the first spring presses against the top inner side of the upper valve sleeve; a first annular groove is provided on the inner side of the outer edge of the valve seat, and the second sealing ring is clamped in the first annular groove. The diameter of the outer edge of the valve seat is larger than the diameter of the first annular groove, and the diameter of the second sealing ring is larger than the diameter of the working valve hole; The eccentric sleeve is located on the top surface of the upper valve sleeve, and the eccentric sleeve is provided with a fourth mounting hole passing through the upper and lower sides thereof, and a center hole passing through a group of opposite side edges of the eccentric sleeve, the upper end of the valve core is passed through the fourth mounting hole and is hinged to the eccentric sleeve through the pin; the other group of opposite side edges of the eccentric sleeve are respectively provided with a downwardly protruding protrusion and an outwardly protruding pressure structure, and the pressure structure includes a second water pouring pressure position and an exhaust pressure position, the second water pouring pressure position is located at the upper part of the pressure structure, and a symmetrically arranged first inclined surface is provided on both sides thereof; the exhaust pressure position is located at the lower part of the pressure structure, and a symmetrically arranged first inclined surface is provided on both sides thereof There is a symmetrically arranged second inclined surface; the protrusion presses against the top surface of the upper valve sleeve; the exhaust top position is located at the lower part of the side wall of the knob transmission seat, the first water pouring pressure position is located at the upper part of the side wall of the knob transmission seat, and the exhaust top position is located between the first water pouring pressure position and the limit block; when the knob transmission seat rotates, the first water pouring pressure position squeezes the first inclined surface of the second water pouring pressure position, or the exhaust top position squeezes the second inclined surface of the exhaust pressure position; the water pouring port is opened on the side wall of the cover upper seat, and the space between the cover lower seat and the cover upper seat is connected to the outside of the pot through the water pouring port.

2. The plateau electric pressure kettle according to claim 1, characterized in that: The cam is secured to the bottom of the valve body with a spring, and the cam is secured to the bottom of the valve body with a spring, and the cam is secured to the bottom of the valve body with a spring. The cam is threadably connected to the upper portion of the valve body by a threaded connection between the external thread and the internal thread, and the fourth sealing ring is installed in the hollow cavity of the lower cylinder body, and the steel ball and the second spring are placed in the hollow cavity between the lower cylinder body and the upper cylinder body. The lower end of the steel ball presses the fourth sealing ring, the upper end of the steel ball presses the lower end of the second spring, the upper end of the second spring presses the inner wall of the upper cylinder body, and the lower side of the fourth sealing ring presses the bottom side of the hollow cavity of the lower cylinder body; the diameter of the third sealing ring is larger than the diameter of the safety valve hole, the upper end of the third sealing ring presses the lower side surface of the lower seat of the cover, and its lower end presses the upper side surface of the third raised ring; the diameter of the upper section of the upper cylinder body is larger than the diameter of the safety valve hole, and the diameter of the safety valve hole is larger than the diameter of the lower cylinder body; the top of the upper valve cap passes through the hole position of the lower seat of the cover and the hole position of the upper seat of the cover and is exposed to the outside of the kettle body.

3. The plateau electric pressure kettle according to claim 1, characterized in that: A protective plate is installed on the cover lower seat around the working valve hole. There are two protective plates. The working valve is located in the space between the two protective plates and the edge of the cover lower seat.

4. The plateau electric pressure kettle according to claim 1, characterized in that: The inner side of the mouth of the kettle body is provided with a circle of mouth buckle edge, which extends horizontally from the side wall of the kettle body toward the inside of the kettle and then bends downward to form a vertical buckle edge, and the lower side of the vertical buckle edge is bent upward toward the outside of the kettle body and folded on the outer side of the vertical buckle edge; the fastening structure is a slider, and the outer end of the slider forms a slider body with an elliptical structure, and the upper side surface of the outer end of the slider body is flattened to form a tongue surface; the slide groove is an elliptical slide groove matching the slider body, and the slider body extends outward or contracts inward along the slide groove as the knob body rotates. After extending outward, the tongue surface is stuck on the vertical buckle edge of the mouth buckle edge.

5. The plateau electric pressure kettle according to claim 4, characterized in that: A third annular groove is provided on the outer periphery of the inner end of the slider body. A fifth sealing ring is sleeved in the third annular groove. The outer side of the fifth sealing ring presses against the inner wall of the sliding groove.

6. The plateau electric pressure kettle according to claim 2, characterized in that: A cover plate is installed on the top of the cover seat, and the cover plate is provided with a hole for the top of the upper valve cap to pass through. The cover plate is also provided with an operation mark, which includes an opening mark, a pouring mark, a stop mark, an exhaust mark, and a pressurization mark distributed in sequence. The opening mark is aligned with the hole passing through the top of the upper valve cap, and the pressurization mark is close to the first pouring water pressure position; an indicator mark is provided on the knob body, and when the rotating body is rotated to set a certain working state, the indicator mark faces the operation mark corresponding to the working state.

7. The plateau electric pressure kettle according to claim 1, characterized in that: The knob body is a cylindrical structure with a cavity that opens upward. The opening is recessed toward the outside of the knob body to form a circle of steps, and a decorative panel for sealing the cavity of the knob body is installed in the steps. The outside of the knob body extends upward at an angle from its middle section, and the cross-sectional structure of the knob body cut along the longitudinal direction is an inverted trapezoidal structure.

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