A pressure kettle

Abstract

The present invention discloses a pressure kettle, which comprises a kettle body and a handle. A safety valve for warning and exhaust is sleeved on the upper side of the kettle body. A spout communicated with the inside of the kettle body is arranged on the kettle body. A working valve for opening and closing the spout is detachably installed on the spout. A lever is installed on the working valve. The working valve is sleeved on the spout and rotated to a working position, and the lever is located above the safety valve. When the pressure in the kettle body is higher than a set value, the safety valve automatically rises to block the lever and prevent it from rotating back, and the working valve and the spout are in a closed state. This kettle can ensure that there is pressure in the kettle, ensure that water can be heated to an ideal 100 °C even in a plateau environment, meet the requirement of ensuring the drinking water temperature during the subsequent processes of boiling water and making milk tea, reduce the boiling time, and save energy. It can realize the control of the pressure in the kettle, avoid excessive pressure, and reduce the problem of exhaust hurting people.

Description

Technical Field

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

[0002] In plateau areas, the air is thin and the atmospheric pressure is low. The boiling point of water decreases with the increase of altitude and cannot reach 100°C, which cannot reach the ideal inactivation temperature. Water that is not boiled cannot kill certain bacteria and reduce the content of harmful substances, which is harmful to the human body and easily causes adverse reactions. Therefore, it is necessary to develop a kettle that can boil water under low-pressure conditions. Summary of the Invention

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

[0004] The present invention is realized by the following technical solutions: A pressure kettle includes a kettle body and a handle. A safety valve for warning and exhaust is sleeved on the upper side of the kettle body. A spout communicating with the inside of the kettle body is provided on the kettle body. A working valve for opening and closing the spout is detachably installed on the spout. A lever is installed on the working valve. The working valve is sleeved on the spout and rotated to the working position, and the lever is located above the safety valve. When the pressure in the kettle body is higher than the set value, the safety valve automatically rises to block the lever and prevent it from rotating back, and the working valve and the spout are in a closed state.

[0005] The setting of the safety valve can achieve the function of exhaust and pressure relief when the pressure in the kettle exceeds the set value, and can also make a sound to give a warning, informing the user that the water has boiled. The setting of the working valve can maintain the pressure in the kettle and will not exhaust and relieve pressure until the set pressure is reached, so as to ensure that the kettle is in a certain pressure environment and ensure that the boiling point of water reaches 100°C, achieving the effect of sterilization and boiling. The setting of the lever is that the safety valve rises to block the working valve and prevent it from rotating back, preventing the working valve from being opened during the working state.

[0006] The working valve includes an upper cover, a valve sleeve, an inner shaft, a pressure spring, a pressure sealing piece, a sealing ring, fastening screws and a fixing piece; the valve sleeve opens downward, and its upper part is recessed inward. There is a step between the upper and lower parts of the valve sleeve. The upper cover is sleeved on the outer periphery of the upper part of the valve sleeve, and the lower side surface of the upper cover fits on the step. The outer periphery of the upper cover is flush with the outer periphery of the lower part of the valve sleeve; the inner shaft passes through the upper part of the inner shaft, the top surface of the valve sleeve, and the upper cover in sequence through a connecting shaft and is then screwed onto the fixing piece; the fastening screws pass through the sealing ring and are then screwed into the lower part of the inner shaft. The sealing ring is provided with a first air vent; the pressure sealing piece and the pressure spring are both sleeved on the outer periphery of the inner shaft. The upper end of the pressure spring abuts against the inner wall of the top of the valve sleeve, the lower end of the pressure spring abuts against the pressure sealing piece, and the lower side of the pressure sealing piece abuts against the upper side of the sealing ring to seal the first air vent; the lower part of the valve sleeve is sleeved on the outer periphery of the spout. There is a section of screw groove on the outer periphery of the spout, and a screwing convex block is provided on the inner side of the bottom of the valve sleeve; one end of the lever is fixed on the outer periphery of the lower part of the valve sleeve. After the screwing convex block is screwed into the screw groove, it is in a working state. The free end of the lever rotates above the safety valve, and the sealing ring seals the water outlet of the spout; the upper part of the valve sleeve is provided with a second air vent for communicating its interior with the exterior, and the upper cover is provided with a third air vent for communicating the inside and outside of the upper cover. When the upper cover is sleeved on the valve sleeve, the third air vent is aligned with the second air vent; when the pressure in the kettle body reaches the set working value, the gas pushes open the pressure sealing piece and slowly discharges from the first air vent, the second air vent, and the third air vent to the outside of the kettle in sequence, preventing the exhaust from being too fast and avoiding the phenomenon of rapid separation between the spout and the kettle body. The outer periphery of the upper cover is flush with the outer periphery of the lower part of the valve sleeve, which can ensure the aesthetic appearance of the product. The pressure spring provides elastic force for the working valve, so that the pressure sealing piece always abuts against the sealing ring, thereby sealing the first air vent and ensuring that there is pressure in the kettle.

[0007] A concave position is formed by the middle part of the pressure sealing piece being recessed downward from top to bottom. The lower end of the pressure spring is sleeved into the concave position and abuts against the pressure sealing piece. The first air vent is located below the lower side surface of the concave position. The setting of the concave position allows the lower end of the pressure spring to be tightly sleeved, avoiding slipping, and also provides a fixed point for the pressure spring, so that it better abuts against the sealing ring.

[0008] The upper part of the safety valve forms an upper convex ring, and its lower part forms a lower convex ring. The safety valve is installed in the installation hole. The diameters of the upper convex ring and the lower convex ring are both larger than the aperture of the installation hole; the safety valve opens downward to form an exhaust passage, and the exhaust passage communicates with the interior of the kettle body. The upper part of the safety valve is provided with an exhaust groove. The inner end of the exhaust groove communicates with the exhaust passage, and the outer end of the exhaust groove communicates with the outside of the kettle. The settings of the upper convex ring and the lower convex ring can restrict the movement range of the safety valve between the two, preventing it from falling off.

[0009] There are two exhaust grooves, which intersect in a cross manner. The intersection is communicated with the exhaust passage, and the outer ends of the exhaust grooves penetrate through the side surface of the safety valve. The outer ends of the exhaust grooves penetrate through the side surface of the safety valve, so that the gas is discharged from the side surface, avoiding upward spraying which is harmful to people and also avoiding the high temperature and heat of the lever and the handle.

[0010] The upper cover is a cover body made of nylon material; the lever is a flat block structure, and a hanging hole is provided at its free end. When the pressure boiling water is not used, the hanging hole can be used to hang the working valve on the hook.

[0011] The sealing ring is provided with a circular concave ring, which is formed by the sealing ring recessing from top to bottom. There are three first air release holes, all of which are located in the concave ring; the lower side of the pressure sealing piece fits on the sealing ring outside the concave ring. The setting of the positions of the concave ring and the first air release holes makes the fitting effect of the pressure sealing piece on the sealing ring better, and is beneficial to the sealing of the gas and the realization of the exhaust by the jacking gap.

[0012] The three first air release holes are at an angle of 120 degrees to each other.

[0013] The upper cover is provided with a positioning groove. The fixing member includes a lotus petal structure and a lotus stamen structure. A positioning card is provided at the lower part of the lotus stamen structure. The positioning card passes through the lotus petal structure and then inserts into the positioning groove. The inner shaft is tightened in the positioning card through a connecting shaft. The lotus petal structure and the lotus stamen structure form a spout decorative piece. The cooperation of the positioning card and the positioning groove makes the fixing member fit tightly with the upper cover.

[0014] A handle is further installed on the upper side of the kettle body. The handle includes a pair of arc-shaped handles. The pair of arc-shaped handles are buckled above the kettle body in a shape of an eight, and a holding part is provided at the buckling part. A silica gel sleeve is sleeved on the holding part.

[0015] Compared with the prior art, the advantages of the present invention are as follows: This kettle can ensure that there is pressure in the kettle, ensure that water can be heated to the ideal 100 °C even in a plateau environment, meet the requirement of ensuring the drinking water temperature during the subsequent process of boiling water and making milk tea, reduce the boiling time, and save energy; it can realize the control of the pressure in the kettle, avoid excessive pressure, and reduce the problem of exhaust hurting people. Description of the Drawings

[0016] Figure 1 It is the front view of the embodiment of the present invention;

[0017] Figure 2 It is the left view of the embodiment of the present invention;

[0018] Figure 3 It is the right view of the embodiment of the present invention;

[0019] Figure 4 is the top view of the embodiment of the present invention;

[0020] Figure 5 is the bottom view of the embodiment of the present invention;

[0021] Figure 6 is the three - dimensional view when the safety valve and the lever of the embodiment of the present invention are staggered;

[0022] Figure 7 is the three - dimensional view in another direction when the safety valve and the lever of the embodiment of the present invention are staggered;

[0023] Figure 8 is the cross - sectional view of the embodiment of the present invention taken along the longitudinal axis;

[0024] Figure 9 is the cross - sectional view in another direction of the embodiment of the present invention taken along the longitudinal axis;

[0025] Figure 10 is the structural schematic diagram of the safety valve assembly of the embodiment of the present invention;

[0026] Figure 11 is the structural schematic diagram of the working valve of the embodiment of the present invention;

[0027] Figure 12 is the exploded structural schematic diagram of the working valve of the embodiment of the present invention;

[0028] Figure 13 is the exploded structural schematic diagram of the working valve in another direction of the embodiment of the present invention;

[0029] Figure 14 is the structural schematic diagram of the pressure sealing piece of the embodiment of the present invention;

[0030] Figure 15 is the structural schematic diagram of the sealing ring of the embodiment of the present invention.

[0031] The meanings of the reference numerals in the figure: 1. kettle body; 11. kettle spout; 12. rotating groove; 13. heat - conducting sheet; 2. safety valve; 21. upper convex ring; 22. lower convex ring; 23. exhaust passage; 24. exhaust groove; 3. working valve; 31. upper cover; 311. third air vent; 312. positioning groove; 32. air valve sleeve; 321. screwing convex block; 322. second air vent; 33. inner shaft; 34. pressure spring; 35. pressure sealing piece; 351. concave position; 36. sealing ring; 361. first air vent; 362. concave ring; 37. fastening screw; 4. lever; 41. suspension hole; 5. fixing member; 51. lotus petal structure; 52. lotus stamen structure; 53. positioning clip; 61. arc - shaped handle; 62. holding part. Detailed implementation manners

[0032] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Embodiment

[0034] Refer to Figures 1 to 15 , which is a pressure kettle, including a kettle body 1 and a handle. A safety valve 2 for warning and exhausting is sleeved on the upper side of the kettle body 1. A spout 11 communicating with the inside of the kettle body 1 is provided on the kettle body 1; a working valve 3 for opening and closing the spout 11 is detachably installed on the spout 11. A lever 4 is installed on the working valve 3. The working valve 3 is sleeved on the spout 11 and rotated to the working position. The lever 4 is located above the safety valve 2; when the pressure in the kettle body 1 is higher than the set value, the safety valve 2 automatically rises to block the lever 4 and prevent it from rotating back, and the working valve 3 and the spout 11 are in a closed state.

[0035] The setting of the safety valve 2 can achieve the function of exhausting and relieving pressure when the pressure in the kettle exceeds the set value, and can also make a sound to give a warning, informing the user that the water has boiled. The setting of the working valve 3 can maintain the pressure in the kettle and will not exhaust and relieve pressure until the set pressure is reached, so as to ensure that the kettle is in a certain pressure environment, ensure that the boiling point of the water reaches 100 °C, and achieve the effect of sterilization and boiling. The setting of the lever 4 is lifted by the safety valve 2, so as to block the working valve 3 and prevent it from rotating back, preventing the working valve 3 from being opened in the working state.

[0036] The working valve 3 includes an upper cover 31, a valve sleeve 32, an inner shaft 33, a pressure spring 34, a pressure sealing piece 35, a sealing ring 36, fastening screws 37 and a fixing member 5; the valve sleeve 32 has a downward opening, its upper part is recessed inward, there is a level between the upper and lower parts of the valve sleeve 32, the upper cover 31 is sleeved on the outer periphery of the upper part of the valve sleeve 32, the lower side surface of the upper cover 31 fits on the level, and the outer periphery of the upper cover 31 is flush with the outer periphery of the lower part of the valve sleeve 32; the inner shaft 33 passes through the upper part of the inner shaft 33, the top surface of the valve sleeve 32, and the upper cover 31 in sequence through a connecting shaft and is then tightened on the fixing member 5; the fastening screws 37 pass through the sealing ring 36 and are then tightened inside the lower part of the inner shaft 33, and the sealing ring 36 is provided with a first air vent 361; both the pressure sealing piece 35 and the pressure spring 34 are sleeved on the outer periphery of the inner shaft 33, the upper end of the pressure spring 34 abuts against the inner wall of the top of the valve sleeve 32, the lower end of the pressure spring 34 abuts against the pressure sealing piece 35, and the lower side of the pressure sealing piece 35 abuts against the upper side of the sealing ring 36 and seals the first air vent 361; the lower part of the valve sleeve 32 is sleeved on the outer periphery of the spout 11, a section of spiral groove 12 is provided on the outer periphery of the spout 11, and a spiral engaging protrusion 321 is provided on the inner side of the bottom of the valve sleeve 32; one end of the lever 4 is fixed on the outer periphery of the lower part of the valve sleeve 32, and when the spiral engaging protrusion 321 is screwed into the spiral groove 12, it is in a working state, the free end of the lever 4 rotates above the safety valve 2, and the sealing ring 36 seals the water outlet of the spout 11; a second air vent 322 for communicating the inside and outside of the valve sleeve 32 is provided on the upper part of the valve sleeve 32, a third air vent 311 for communicating the inside and outside of the upper cover 31 is provided on the upper cover 31, and when the upper cover 31 is sleeved on the valve sleeve 32, the third air vent 311 is aligned with the second air vent 322; when the pressure in the kettle body 1 reaches the set working value, the gas pushes open the pressure sealing piece 35 and slowly discharges from the first air vent 361, the second air vent 322, and the third air vent 311 to the outside of the kettle in sequence, preventing the exhaust from being too fast and avoiding the phenomenon that the spout 11 and the kettle body 1 are separated rapidly. The outer periphery of the upper cover 31 is flush with the outer periphery of the lower part of the valve sleeve 32, which can ensure the aesthetic appearance of the product. The pressure spring 34 provides elastic force for the working valve 3, so that the pressure sealing piece 35 always abuts against the sealing ring 36, thereby sealing the first air vent 361 and ensuring that there is pressure in the kettle.

[0037] A concave position 351 is formed by the middle part of the pressure sealing piece 35 being recessed from top to bottom. The lower end of the pressure spring 34 is sleeved into the concave position 351 and abuts against the pressure sealing piece 35. The first air vent 361 is located below the lower side surface of the concave position 351. The setting of the concave position 351 allows the lower end of the pressure spring 34 to be tightly sleeved to avoid slipping, and also provides a fixed point for the pressure spring 34, so that it better abuts against the sealing ring 36.

[0038] An upper convex ring 21 is formed on the upper part of the safety valve 2, and a lower convex ring 22 is formed on its lower part. The safety valve 2 is installed in the installation hole. The diameters of both the upper convex ring 21 and the lower convex ring 22 are larger than the aperture of the installation hole; the safety valve 2 forms an exhaust passage 23 opening downward, and the exhaust passage 23 communicates with the inside of the kettle body 1. An exhaust groove 24 is provided on the upper part of the safety valve 2. The inner end of the exhaust groove 24 communicates with the exhaust passage 23, and the outer end of the exhaust groove 24 communicates with the outside of the kettle. The arrangement of the upper convex ring 21 and the lower convex ring 22 can confine the movement range of the safety valve 2 between the two to prevent it from falling off. In this embodiment, in order to better maintain pressure, the installation hole on the upper side of the kettle body 1 is recessed inward, so that in the normal state, the upper convex ring 21 on the upper part of the safety valve 2 is located inside the upper side surface of the kettle body 1, the top of the safety valve 2 is flush with the upper side surface of the kettle body 1, and the wall surface of the kettle body 1 around the installation hole is close to or even tends to fit with the exhaust groove 24, and gas will not leak out, so that the pressure maintaining function can be carried out at the initial stage of boiling water.

[0039] Two exhaust grooves 24 are provided and intersect in a cross manner. The intersection communicates with the exhaust passage 23, and the outer ends of the exhaust grooves 24 penetrate through the side surface of the safety valve 2. The outer ends of the exhaust grooves 24 penetrate through the side surface of the safety valve 2, so that gas is discharged from the side, avoiding upward spraying which is harmful to people and also avoiding the lever 4 and the handle from getting hot due to high temperature.

[0040] The upper cover 31 is a cover body made of nylon material; the lever 4 is a flat block structure, and a hanging hole 41 is opened at its free end. When not using pressure boiling water, the setting of the hanging hole can hang the working valve on the hook.

[0041] The sealing ring 36 is provided with a circular concave ring 362. The concave ring 362 is formed by the sealing ring 36 being recessed from top to bottom. Three first air vent holes 361 are provided and are all located within the concave ring 362; the lower side surface of the pressure sealing piece 35 is attached to the sealing ring 36 outside the concave ring 362. The setting of the positions of the concave ring 362 and the first air vent holes 361 makes the attachment effect of the pressure sealing piece 35 to the sealing ring 36 better, and is conducive to the sealing of gas and the realization of exhaust through the jacking gap.

[0042] The three first air vent holes 361 are mutually at an angle of 120 degrees to each other.

[0043] The upper cover 31 is provided with a positioning groove 312. The fixing member 5 includes a lotus petal structure 51 and a lotus stamen structure 52. A positioning card 53 is provided at the lower part of the lotus stamen structure 52. The positioning card 53 passes through the lotus petal structure 51 and then is inserted into the positioning groove 312. The inner shaft 33 is tightened in the positioning card 53 through a connecting shaft (not shown in the figure, which is a conventional accessory and does not need to be introduced in detail). The lotus petal structure 51 and the lotus stamen structure 52 form a decorative part of the spout 11. The cooperation of the positioning card 53 and the positioning groove 312 makes the fixing member 5 and the upper cover 31 fit tightly.

[0044] A handle is also installed on the upper side of the kettle body 1. The handle includes a pair of arc-shaped handles 61. The pair of arc-shaped handles 61 are buckled above the kettle body 1 in a V-shape. A holding part 62 is provided at the buckling position, and a silica gel sleeve is sleeved outside the holding part 62.

[0045] A heat conduction sheet 13 is compounded at the bottom of the kettle body 1, and the heat conduction sheet 13 has a lotus petal shape.

[0046] Installation of this embodiment:

[0047] 1) Fix the pressure spring 34, the pressure sealing piece 35, and the sealing ring 36 into the air valve sleeve 32 respectively;

[0048] 2) Fix the kettle spout 11 decorative parts (the lotus petal structure 51 and the lotus stamen structure 52) at the designated position outside the air valve sleeve 32, that is, in the upper cover 31.

[0049] Working principle of this embodiment:

[0050] 1) After sleeving the air valve sleeve 32 onto the kettle spout 11, rotate it clockwise to the working state marking position.

[0051] 2) When the pressure inside the kettle body 1 reaches the set working pressure value (30 - 60 KPa), the pressure sealing piece 35 separates from the edge of the sealing ring 36, and the gas slowly discharges from the gap between the two.

[0052] 3) When the pressure inside the kettle body 1 reaches the set pressure relief value (greater than 120 KPa), the edge of the sealing ring 36 turns out from the kettle spout 11, and the air pressure inside the kettle body 1 quickly discharges.

[0053] 4) When rotating the air valve sleeve 32 counterclockwise to the exhaust marking, the air pressure inside the kettle body 1 discharges from the kettle spout 11. When the pressure inside the kettle body 1 is lower than 4 kPa, the safety valve 2 automatically descends, and at this time the air valve sleeve 32 can be rotated to open.

[0054] 5) When the pressure inside the kettle body 1 is higher than 5 kPa, the safety valve 2 automatically rises, and at this time the air valve sleeve 32 cannot be opened.

[0055] 6) When the pressure inside the kettle body 1 is higher than the set value of the safety valve 2 (higher than 5 kPa), the safety valve 2 automatically exhausts and makes a sound.

[0056] When the pressure inside the kettle body 1 reaches 5 kPa, the safety valve 2 automatically rises. Its functions are: (1) Warning that there is air pressure inside the kettle body 2; (2) When the working valve 3 is accidentally blocked, it automatically exhausts and makes a sound when reaching the set pressure; (3) When the pressure inside the kettle body 1 is not lower than 4 kPa, the safety valve 2 will not descend, so that the lever 4 of the working valve 3 cannot be rotated to the open state, playing a role in protecting against accidental opening of the lid.

[0057] The above detailed description is a specific description of the feasible embodiments of the present invention, and such embodiments are not intended to limit the patent scope of the present invention. Any equivalent implementation or modification without departing from the present invention shall be included in the patent scope of this case.

Claims

1. A pressure kettle, characterized in that: It includes a kettle body (1) and a handle. A safety valve (2) for warning and exhausting air is sleeved on the upper side of the kettle body (1). A spout (11) communicating with the inside of the kettle body (1) is provided on the kettle body (1). A working valve (3) for opening and closing the spout (11) is detachably installed on the spout (11). A lever (4) is installed on the working valve (3). The working valve (3) is sleeved on the spout (11) and rotated to the working position. The lever (4) is located above the safety valve (2). When the pressure inside the kettle body (1) is higher than the set value, the safety valve (2) automatically rises to block the lever (4) and prevent it from rotating back. The working valve (3) and the spout (11) are in a sealed state. The working valve (3) includes an upper cover (31), an air valve sleeve (32), an inner shaft (33), a pressure spring (34), a pressure sealing piece (35), a sealing ring (36), a fastening screw (37) and a fixing member (5). The air valve sleeve (32) opens downward, and its upper part is recessed inward. There is a step between the upper and lower parts of the air valve sleeve (32). The upper cover (31) is sleeved on the outer periphery of the upper part of the air valve sleeve (32). The lower side surface of the upper cover (31) fits on the step. The outer periphery of the upper cover (31) is flush with the outer periphery of the lower part of the air valve sleeve (32). The inner shaft (33) passes through the upper part of the inner shaft (33), the top surface of the air valve sleeve (32) and the upper cover (31) in sequence through a connecting shaft and is then screwed tightly on the fixing member (5). The fastening screw (37) passes through the sealing ring (36) and is then screwed tightly inside the lower part of the inner shaft (33). The sealing ring (36) is provided with a first air leakage hole (361). The pressure sealing piece (35) and the pressure spring (34) are both sleeved on the outer periphery of the inner shaft (33). The upper end of the pressure spring (34) abuts against the inner wall of the top of the air valve sleeve (32). The lower end of the pressure spring (34) abuts against the pressure sealing piece (35). The lower side of the pressure sealing piece (35) abuts against the upper side of the sealing ring (36) and seals the first air leakage hole (361). The lower part of the air valve sleeve (32) is sleeved on the outer periphery of the spout (11). A section of spiral groove (12) is provided on the outer periphery of the spout (11). A spiral engaging convex block (321) is provided on the inner side of the bottom of the air valve sleeve (32). One end of the lever (4) is fixed on the outer periphery of the lower part of the air valve sleeve (32). After the spiral engaging convex block (321) is screwed into the spiral groove (12), it is in the working state. The free end of the lever (4) rotates above the safety valve (2). The sealing ring (36) seals the water outlet of the spout (11). A second air leakage hole (322) communicating its inside and outside is provided in the upper part of the air valve sleeve (32). A third air leakage hole (311) communicating the inside and outside of the upper cover (31) is provided in the upper cover (31). When the upper cover (31) is sleeved on the air valve sleeve (32), the third air leakage hole (311) is aligned with the second air leakage hole (322).When the pressure inside the kettle body (1) reaches the set working value, the gas pushes open the pressure sealing piece (35), and slowly discharges out of the kettle in turn from the first air vent hole (361), the second air vent hole (322), and the third air vent hole (311).; 2. The pressure kettle according to claim 1, wherein: The middle portion of the pressure sealing sheet (35) is sunken from top to bottom to form a recessed position (351), the lower end of the pressure spring (34) is inserted into the recessed position (351) and presses against the pressure sealing sheet (35), and the first air leakage hole (361) is located below the lower side of the recessed position (351).

3. The pressure kettle according to claim 1, wherein: The kettle body (1) is provided with a mounting hole on its upper side; an upper convex ring (21) is formed on the upper part of the safety valve (2), and a lower convex ring (22) is formed on its lower part; the safety valve (2) is mounted in the mounting hole; the diameter of the upper convex ring (21) and the diameter of the lower convex ring (22) are both larger than the aperture of the mounting hole; the safety valve (2) opens downward to form an exhaust passage (23); the exhaust passage (23) is communicated with the interior of the kettle body (1); an exhaust groove (24) is provided on the upper part of the safety valve (2); the inner end of the exhaust groove (24) is communicated with the exhaust passage (23), and the outer end of the exhaust groove (24) is communicated with the outside of the kettle.

4. The pressure kettle according to claim 3, characterized in that: The exhaust grooves (24) are provided with two and intersect in a cross manner, and the intersection is connected to the exhaust channel (23). The outer ends of the exhaust grooves (24) penetrate the side surfaces of the safety valve (2).

5. The pressure kettle according to claim 1, wherein: The upper cover (31) is a cover body made of nylon material; the lever (4) is a flat block structure, and a hanging hole (41) is provided at its free end.

6. The pressure kettle according to claim 2, wherein: The sealing ring (36) is provided with a circle of concave ring (362), and the concave ring (362) is formed by the sealing ring (36) being concave from top to bottom. The first air leakage holes (361) are provided with three holes, all of which are located in the concave ring (362); the lower side surface of the pressure sealing sheet (35) is in contact with the sealing ring (36) outside the concave ring (362).

7. The pressure kettle according to claim 6, wherein: The three first air leakage holes (361) form an angle of 120 degrees between each other.

8. The pressure kettle according to claim 1, characterized in that: The upper cover (31) is provided with a positioning groove (312); the fixing member (5) comprises a lotus petal structure (51) and a lotus pistil structure (52); a positioning clamp (53) is provided at the lower part of the lotus pistil structure (52); the positioning clamp (53) passes through the lotus petal structure (51) and is inserted into the positioning groove (312); the inner shaft (33) is screwed into the positioning clamp (53) via a connecting shaft.

9. The pressure kettle according to claim 1, characterized in that: A handle is also mounted on the upper side of the kettle body (1), the handle comprising a pair of arc-shaped handles (61), the pair of arc-shaped handles (61) being buckled on the upper side of the kettle body (1) in an "eight" shape, a gripping portion (62) being provided at the buckling position, and the gripping portion (62) being covered with a silicone sleeve.

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