Electric heating pressure cup

Abstract

The electric heating pressure cup comprises a cup body and a pressure cover, the cup body comprises an inner container and an electric heating assembly, the pressure cover can seal the cup body through pressure, the pressure cover comprises a cover body, a locking unit and an opening stopping valve, the locking unit and the opening stopping valve are arranged on the cover body, and the locking unit is arranged on the cover body in a sliding mode. The locking unit comprises a locking position for locking the cup body and the cover body, the opening stopping valve is arranged on the cover body in a sliding mode, one end of the opening stopping valve can stretch into an inner cavity of the inner container when the pressure cover covers the cup body, and the opening stopping valve can stop opening when the pressure in the inner container is larger than preset pressure. The pressure cover slides along the cover body to an opening stopping position enabling the locking unit to be kept at the locking position, the locking unit comprises operation ends protruding out of the two opposite sides of the pressure cover, and under the condition that the internal and external pressure difference of the inner container does not exceed the preset pressure difference, the cup body and the cover body are unlocked when the two operation ends are subjected to control pressure at the same time. According to the utility model, the use safety of the electric heating pressure cup is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to life electric appliance technical field, concretely relates to a electric heating pressure cup. BACKGROUND

[0002] At present, people often take electric heating cup for boiling water when going out. But in high altitude environment, due to atmospheric pressure, the boiling point of water is lower than 100 DEG C, and the ideal sterilization temperature cannot be reached, even if boiling, it cannot be drunk.

[0003] In the prior art, in order to ensure that water can be boiled to 100 DEG C in high altitude area, the cup is generally set as a pressure container, but after being set as a pressure container, there is a certain safety risk in the use process.

[0004] Therefore, in high altitude environment, how to safely boil water to 100 DEG C is a problem to be solved. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving one of the technical problems in the related art to some extent, and for this purpose, the utility model provides an electric heating pressure cup, the pressure cover cannot be opened under high pressure, and the safety in use is improved under the condition that the pressure environment can be formed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An electric heating pressure cup, comprising a cup body and a pressure cover, the cup body comprises an inner container and an electric heating assembly arranged on the outer bottom wall of the inner container, the pressure cover can pressure seal the cup body, the pressure cover comprises a cover body, a locking unit arranged on the cover body and a stop valve, the locking unit is arranged on the cover body in the radial direction of the pressure cover, the locking unit comprises a locking position for locking the cup body and the cover body, the stop valve is arranged on the cover body in sliding mode, the stop valve can extend into the inner cavity of the inner container when the pressure cover is buckled on the cup body, and under the condition that the pressure difference between the inside and outside of the inner container is greater than a preset pressure difference, the stop valve slides along the cover body to a stop position, so that the locking unit is kept in the locking position, the locking unit comprises operation ends protruding from the opposite sides of the pressure cover, and under the condition that the pressure difference between the inside and outside of the inner container does not exceed the preset pressure difference, the two operation ends are unlocked when the two operation ends are simultaneously controlled by the control pressure.

[0008] In the technical solution, the pressure cover is provided, and in use, the pressure cover can form a pressure sealing effect on the cup body, so that the inner cavity of the cup can form a pressure value higher than the atmospheric pressure in the process of boiling water, and thus the water can be boiled to 100 DEG C in a high-altitude area, and the drinking quality is improved. In addition, the locking unit and the stop valve are provided on the pressure cover, and when the pressure in the cup body is high during the boiling process, the stop valve can keep the locking unit in the locked position under the action of the pressure in the cup body, so that the pressure cover cannot be separated from the cup body and opened when the pressure in the cup body is high, and the safety risk caused by opening the cup body under high pressure is avoided.

[0009] Further, the cover body includes a bottom plate and a ring-shaped side plate protruding from the top surface of the bottom plate, a containing cavity is formed between the side plate and the bottom plate on the top surface side of the bottom plate, the locking unit is slidingly connected to the side plate in the radial direction of the cover body, the stop valve is slidingly connected to the bottom plate in the axial direction of the cover body, and the sliding paths of the locking unit and the stop valve intersect.

[0010] Further, the locking unit includes two symmetrically distributed locking units, each of which includes a first plate body, a second plate body, and a connecting plate connecting the first plate body and the second plate body, the second plate body is located on the top of the first plate body, the side plate is provided with a first sliding groove and a second sliding groove corresponding to the first plate body and the second plate body respectively, the first end of the first plate body passes through the first sliding groove and is slidingly connected with the first sliding groove, the first end of the second plate body passes through the second sliding groove and is slidingly connected with the second sliding groove, the first end of the second plate body forms the operation end, the second end of the first plate body and the second end of the second plate body are located in the containing cavity, the bottom plate is provided with a stop opening between the two locking units, the stop valve is slidingly installed in the stop opening, the first end of the stop valve is located in the containing cavity, and the second end of the stop valve penetrates through the bottom plate and extends out of the bottom of the bottom plate.

[0011] Further, the first end of the stop valve includes a first outer circular wall, in the locked position, the first outer circular wall is located between the two first plate bodies, the maximum distance between the two first plate bodies and the diameter of the first outer circular wall form a set difference value, and the first outer circular wall can stop the first plate body and keep the locking unit in the locked position when the stop valve is in the stop position.

[0012] Further, a groove corresponding to the first end of the first plate body is formed on the inner side wall of the open end of the cup body. In the locked position, the first end of the first plate body can be inserted into the groove to achieve the locking of the pressure cover and the cup body. The distance from the groove to the top of the cup body is less than the distance between the second plate body and the first plate body, so that when the pressure cover is covered on the cup body, the second plate body is located at the upper part of the cup body.

[0013] Further, a first spring is connected between the two second plate bodies, which can keep the two locking units in the locked position. Pressing the first end of the second plate body can compress the first spring and make the locking units slide out of the locked position.

[0014] Further, a cylinder surrounding the stop opening is arranged on the bottom surface of the bottom plate. The second end of the stop valve is arranged in the cylinder. The bottom of the cylinder is open, and a flexible sleeve is arranged on the bottom of the cylinder to seal the stop valve in the cylinder. Since the stop valve is slidingly arranged in the stop opening, there is a gap between the stop valve and the stop opening. During use, the cup body may be placed horizontally. The flexible sleeve can ensure that the stop valve can sense the pressure in the cup body and avoid liquid leakage from the stop opening.

[0015] Further, a sealing member is arranged on the bottom outer side wall of the cover body to cooperate with the inner wall of the inner container. The cup body further comprises a heat insulation layer arranged outside the inner container. A cavity is formed between the heat insulation layer and the bottom wall of the inner container. The electric heating assembly is arranged in the cavity.

[0016] Further, the pressure cover comprises a safety valve arranged on the cover body, an exhaust valve, and a top cover arranged on the top of the cover body. A safety valve hole for mounting the safety valve and an exhaust valve hole for mounting the exhaust valve are formed on the bottom plate. A second spring is connected between the valve core of the exhaust valve and the bottom plate and / or the top cover. The valve core of the exhaust valve can pressure seal the exhaust valve hole under the action of the second spring. A third spring is connected between the valve core of the safety valve and the bottom plate and / or the top cover. The valve core of the safety valve can pressure seal the safety valve hole under the action of the third spring.

[0017] Further, the bottom surface of the top cover is provided with an annular first boss corresponding to the exhaust valve, a slope is formed on the surface of the first boss, the exhaust valve is provided with a second boss opposite to the slope, the second boss is in abutment with the slope under the action of the second spring, and the top of the exhaust valve is provided with an operating rod penetrating through the top cover and extending out of the top cover.

[0018] The features and advantages of the present application will be described in detail in the following detailed description and drawings. The best mode or means of the present application will be described in detail in conjunction with the drawings, but it is not a limitation of the technical scheme of the present application. In addition, the features, elements and components appearing in each of the following text and drawings are multiple, and different symbols or numbers are marked for convenience of representation, but all represent the same or similar structure or function parts. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described in conjunction with the drawings:

[0020] Figure 1 It is the overall appearance diagram of one embodiment of the present application (cup body and pressure cover assembly state);

[0021] Figure 2 It is the front view of one embodiment of the present application (center part);

[0022] Figure 3 It is the front view of one embodiment of the present application (exhaust valve and safety valve part);

[0023] Figure 4 It is the pressure cover structure sectional view of one embodiment of the present application;

[0024] Figure 5 It is the cup body structure sectional view of one embodiment of the present application;

[0025] Figure 6 It is the pressure cover structure diagram of one embodiment of the present application (remove the top cover);

[0026] Figure 7 It is the top cover structure diagram of one embodiment of the present application;

[0027] Figure 8 It is the stop valve structure diagram of one embodiment of the present application;

[0028] Figure 9 It is the locking unit front view sectional view of one embodiment of the present application.

[0029] wherein,

[0030] 10, cup body; 11, groove; 12, inner container; 13, insulation layer; 14, cavity;

[0031] 20, pressure cover; 21, cover body; 211, bottom plate; 212, side plate; 213, accommodating cavity; 22, locking unit; 221, first plate body; 222, second plate body; 223, connecting plate; 224, first spring; 225, connecting column; 23, top cover; 231, protruding portion; 24, non-return valve; 242, first outer circular wall; 243, second outer circular wall; 25, exhaust valve; 251, first boss; 252, second spring; 26, safety valve; 261, third spring; 27, sealing element; 28, barrel; 29, flexible sleeve. DETAILED DESCRIPTION

[0032] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numbers represent the same or similar elements or elements having the same or similar functions throughout. Based on the embodiments in the embodiments, it is intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] In this specification, "one embodiment" or "an embodiment" or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearance of the phrase "in one embodiment" in various places in the specification is not necessarily all referring to the same embodiment.

[0034] Referring to the drawings, Figures 1-5 , one embodiment of the present application discloses an electric heating pressure cup, comprising a cup body 10 and a pressure cover 20, the cup body 10 comprises an inner container 12 and an electric heating assembly arranged on the outer bottom wall of the inner container 12, the pressure cover can pressure seal the cup body 10, the pressure cover 20 comprises a cover body 21, a locking unit 22 arranged on the cover body 21 and a non-return valve 24, the locking unit 22 is slidingly arranged on the cover body 21, the locking unit 22 comprises a locking position for locking the cup body 10 and the cover body 21, the non-return valve 24 is slidingly arranged on the cover body 21, one end of the non-return valve 24 can extend into the inner cavity of the inner container 12 when the pressure cover 20 is buckled on the cup body 10, and the non-return valve 24 can slide along the cover body to the non-return position to keep the locking unit 22 in the locking position when the pressure in the inner container 12 is greater than the preset pressure; the locking unit comprises operation ends protruding from opposite sides of the pressure cover, and the cup body and the cover body are unlocked when the two operation ends are simultaneously controlled by the operating pressure when the pressure difference between the inside and outside of the inner container does not exceed the preset pressure difference.

[0035] The cup 10 in the embodiment can be provided as a single-layer structure only with the inner container 12 (at this time, a heat insulation layer 13 can be provided outside the inner container 12, and the heat insulation layer 13 can be a plastic piece), or can be provided as a double-layer structure of a vacuum cup, which is not limited in the embodiment, as long as it can avoid cup scalding during heating.

[0036] The pressure cover 20 in the embodiment is provided as a pressure cover, which is different from the pressure cover 20 of a common cup in the prior art. The common pressure cover 20 generally only has a sealing function, and when the pressure in the cup 10 is too high, air leakage will occur, and the high pressure in the cup 10 cannot be guaranteed. However, the pressure cover can still maintain good sealing effect under a certain pressure, so that when the inner container 12 in the embodiment is heated by the electric heating assembly, high-temperature water vapor will be generated in the cup 10 as the heating proceeds, and the pressure in the cup 10 will become higher and higher. If the cup is used in a high-altitude area, the common cup will lose the sealing effect under high pressure, at this time, the inner cavity of the cup 10 will be connected to the outside, and thus the water in the cup 10 cannot be heated to 100℃, which affects the drinking effect. The pressure cover in the embodiment can seal the cup 10 under pressure, so that when the electric heating assembly heats the inner container 12, the inner cavity of the inner container 12 can form a pressure value higher than the atmospheric pressure, so that a high-pressure environment can be formed in the cavity 14 in the cup 10, and the water in the cup can be heated to 100℃, thereby improving the quality of the drinking water.

[0037] The pressure cover in the embodiment further includes a cover body 21, a locking unit 22 provided on the cover body 21, and a non-return valve 24. In use, the cover body 21 is buckled with the cup 10, the locking unit 22 is slidingly provided on the cover body 21, the locking unit 22 includes a locking position for locking the cup 10 and the cover body 21, and the non-return valve 24 can keep the locking unit 22 in the locking position when the pressure in the cup 10 is greater than a preset pressure. The locking unit 22 can lock the pressure cover and the cup 10, so that the pressure cover mentioned above will not be opened under high pressure in the cup 10, that is, the cup 10 will not lose the sealing effect.

[0038] In addition, by providing the non-return valve 24 on the pressure cover 20, when the pressure in the cup 10 is high during the water boiling process, the non-return valve 24 can keep the locking unit 22 in the locking position under the action of the pressure in the cup 10, so that the pressure cover 20 cannot be separated from the cup 10 and opened when the pressure in the cup 10 is high, that is, the user cannot directly open the pressure cover 20 at this time, and the pressure cover 20 can only be opened when the pressure in the cup is reduced to a certain value. Thus, the safety risk that may be caused by opening the cup 10 under high pressure can be effectively avoided.

[0039] In use, the pressure cover 20 and the cup body are generally in a locked state to avoid liquid leakage caused by the pressure cover 20 being opened during travel. When the pressure cover needs to be opened, the user can press two opposite operation ends (the radial dimension of the cup is generally small, so the user can easily operate the two opposite operation ends with one hand) to drive the locking unit to slide and unlock.

[0040] It should be noted that the specific structure of the locking unit 22 is not limited in this embodiment. The locking unit 22 can be provided in various forms, such as sliding structures in different directions (radial or axial of the cup 10, etc.). In addition, the locking structure of the locking unit 22 and the cup 10 is not limited, such as hooking, clamping, or inserting, etc., as long as it can lock the pressure cover and the locking position of the cup 10.

[0041] As one of the embodiments of the present application, referring to the accompanying drawings, Figure 6 The cover body 21 includes a bottom plate 211 and a ring-shaped side plate 212 protruding from the top surface of the bottom plate 211. The side plate 212 and the bottom plate 211 form a receiving cavity 213 on the top surface of the bottom plate 211. That is, the side plate 212 and the bottom plate 211 form a structure similar to the top-opened cylinder 28. The ring-shaped side plate 212 forms a circumferential structure with an outer diameter slightly smaller than the inner diameter of the inner container 12. When the pressure cover 20 is buckled on the cup body 10, a small gap exists between the cover body 21 and the inner container 12, which is convenient for setting a sealing structure.

[0042] The locking unit 22 is at least partially arranged in the receiving cavity 213, and the stop valve 24 is at least partially arranged in the receiving cavity 213. The locking unit 22 is slidingly connected to the side plate 212 in the radial direction of the cover body 21, and the stop valve 24 is slidingly connected to the bottom plate 211 in the axial direction of the cover body 21. The sliding paths of the locking unit 22 and the stop valve 24 intersect. In this embodiment, the sliding paths of the locking unit 22 and the stop valve 24 intersect. When the stop valve 24 is moved to the sliding path of the stop valve 24 in actual use, the sliding of the locking unit 22 is stopped, and the locking unit 22 can be kept in the locked position.

[0043] Of course, it is conceivable that the structure of the stop valve 24 keeping the locking unit 22 in the locked position has other forms, and is not limited to the structure mentioned above that the sliding paths of the locking unit 22 and the stop valve 24 intersect. For example, a positioning mechanism can also be provided to keep the locking unit 22 in the locked position.

[0044] As one of the embodiments of the utility model, see the accompanying Figure 4 , 6 , the locking unit includes two symmetrically distributed locking units 22, each of which includes a first plate body 221, a second plate body 222, and a connecting plate 223 connecting the first plate body 221 and the second plate body 222, the second plate body 222 is located on the upper part of the first plate body 221, the side plate 212 is provided with a first sliding groove and a second sliding groove corresponding to the first plate body 221 and the second plate body 222 respectively, the first end of the first plate body 221 passes through the first sliding groove and is in sliding connection with the first sliding groove, the first end of the second plate body 222 passes through the second sliding groove and is in sliding connection with the second sliding groove, the first end of the second plate body forms the operating end, the second end of the first plate body 221 and the second end of the second plate body 222 are placed in the accommodating cavity 213, the bottom plate 211 is provided with a stop opening between the two locking units 22, the stop valve 24 is slidingly installed in the stop opening, the first end of the stop valve 24 is placed in the accommodating cavity 213, and the second end of the stop valve 24 penetrates through the bottom plate 211 and extends out of the bottom of the bottom plate 211.

[0045] See the accompanying Figure 9 , the embodiment discloses a specific structure of the locking unit 22, in the embodiment, the locking unit 22 includes the first plate body 221 and the second plate body 222 which are parallelly arranged upward and downward, wherein the first plate body 221 and the second plate body 222 are slidingly connected with the cover body 21 through the sliding groove structure (the first sliding groove and the second sliding groove), so that two matching positions exist between each locking unit 22 and the cover body 21, the stability of assembly of the locking unit 22 and the cover body 21 can be ensured, in addition, since the two symmetrically arranged locking units 22 are arranged, in actual use, the two locking units 22 can be locked with the cup body 10 from two symmetric positions of the cup body 10, the sealing effect on the cup body 10 is improved, wherein the stop valve 24 in the embodiment is arranged between the two locking units 22, so that the two locking units 22 can be simultaneously blocked through the stop valve 24, the compactness of the structure is improved, in actual use, the stop valve 24 is equivalent to a detection rod, the second end of the stop valve 24 and the internal cavity 14 of the cup body 10 can be regarded as being communicated, so that the stop valve 24 can float up and down under the action of the pressure in the inner cavity of the cup body 10, when the pressure generated by the action of the air pressure in the inner cavity of the cup body 10 on the second end of the stop valve 24 is greater than the gravity of the stop valve 24, the stop valve 24 floats upward at this time, and the stop part of the stop valve 24 can extend into the two locking units 22 and block the sliding of the locking units 22 to the unlocking position.

[0046] As one of the embodiments of the utility model, the first end of the closing valve 24 comprises a first outer circular wall 242 and a second outer circular wall 243 arranged on the upper part of the first outer circular wall 242, the diameter of the first outer circular wall 242 is larger than the diameter of the second outer circular wall 243, in the locking position, the first outer circular wall 242 is arranged between the two first plate bodies 221, the maximum distance between the two first plate bodies 221 and the diameter of the first outer circular wall 242 form a set difference value, the first outer circular wall can stop the first plate body and make the locking unit keep in the locking position when the closing valve is in the closing position. Referring to the accompanying Figure 8 It can be seen that the closing valve 24 rod in the embodiment is arranged in a stepped structure, which can facilitate the control of the weight of the closing valve 24 while ensuring the function of the closing valve 24. As mentioned above, the working principle of the closing valve 24 can be obtained that, in actual use, the gravity of the pressure valve is directly related to the pressure in the cup body 10, that is, when the gravity of the pressure valve is large, the pressure in the cup body 10 is large, and the pressure valve can only float up when the pressure in the cup body 10 is small. Therefore, by reasonably designing the weight of the pressure valve, the safety pressure can be controlled. Of course, it can be thought that in actual design, the area of the bottom surface of the closing valve 24 also needs to be considered, because F=PS, the weight of the pressure valve and the area of the bottom surface can together control the safety pressure value in the cup body 10.

[0047] In order to realize the more stable locking effect of the pressure cover 20 and the cup body 10, the inner side wall of the opening end of the cup body 10 of one of the embodiments of the utility model is provided with a groove 11 corresponding to the first end of the first plate body 221, in the locking position, the first end of the first plate body 221 can be inserted into the groove 11 to realize the locking of the pressure cover and the cup body 10, the distance between the groove 11 and the top of the cup body 10 is less than the distance between the second plate body 222 and the first plate body 221, so that when the pressure cover is buckled on the cup body 10, the second plate body 222 is located on the upper part of the cup body 10. The first spring 224 is connected between the two second plate bodies 222, the first spring 224 can make the two locking units 22 keep in the locking position, and pressing the first end of the second plate body 222 can make the first spring 224 compressed and make the locking unit 22 slide out of the locking position.

[0048] Referring to the accompanying Figure 7When the pressure cover 20 is buckled on the cup body 10, the lower part of the pressure cover 20 extends into the cup body 10, and the upper part of the pressure cover 20 protrudes from the top of the cup body 10. In actual use, the locking unit 22 on the pressure cover 20 is opposite to the groove 11 on the inner side of the cup body 10 at the outer end of the first plate body 221 in the lower part and can be clamped into the groove 11. If no external force is applied to the pressure cover 20, the first plate body 221 will always be clamped in the groove 11 under the action of the spring 224, thereby ensuring the locking effect. When it is necessary to open the pressure cover 20, the operator only needs to press or pinch the two ends of the two second plate bodies 222 on the outside. Since the second plate bodies 222 are located outside the cup body 10 after buckling, the operation is convenient. Under the action of the external force, the spring 224 connected between the two locking units 22 will be compressed, that is, the locking unit 22 will move along the radial direction to the center part of the pressure cover 20. Since the second plate body 222 and the first plate body 221 are connected as an integrated mechanism, the part of the first plate body 221 originally clamped in the groove 11 will be separated from the groove 11 at this time, thereby realizing the opening of the pressure cover 20.

[0049] It should be noted that the structure of the locking unit 22 of the above-mentioned embodiment is only one specific embodiment of the present application. In actual setting, other similar structure forms can also be set.

[0050] Since the shut-off valve 24 is slidingly installed in the shut-off hole, there is a gap between the shut-off valve 24 and the shut-off hole. Since the cup body 10 can be in a horizontal state during use, the solution in the cup body 10 can leak out from the gap between the shut-off valve 24 and the shut-off hole at this time. Therefore, in order to ensure better sealing effect of the pressure cover 20 on the cup body 10, the bottom surface of the bottom plate 211 is provided with a cylinder 28 surrounding the shut-off hole, the second end of the shut-off valve 24 is arranged in the cylinder 28, the bottom of the cylinder 28 is an open structure, and the bottom of the cylinder 28 is provided with a flexible sleeve 29 for sealing the shut-off valve 24 in the cylinder 28. In actual setting, the flexible sleeve 29 can be a silica gel sleeve or other flexible structure that can isolate liquid. In this embodiment, by arranging the flexible sleeve 29, the air pressure of the cup body 10 can be transmitted to the shut-off valve 24 through the flexible sleeve 29, which can ensure that the shut-off valve 24 can sense the pressure in the cup body 10 and avoid the problem of liquid leakage from the shut-off hole.

[0051] As one of the embodiments of the utility model, the bottom outer side wall of the cover body 21 is provided with a sealing element 27 matched with the inner wall of the inner container 12, when the pressure cover 20 is buckled on the cup body 10, the sealing element 27 is extruded to form a seal between the pressure cover 20 and the inner side wall of the cup body 10, the cup body 10 further comprises a heat insulation layer 13 arranged outside the inner container 12, to avoid scalding external personnel during heating, a cavity 14 is formed between the heat insulation layer 13 and the bottom wall of the inner container 12, and the electric heating assembly is arranged in the cavity 14.

[0052] Referring to the accompanying drawings Figure 3 In order to improve the safety of the cup in the utility model, the pressure cover comprises a safety valve 26 arranged on the cover body 21, an exhaust valve 25 and a top cover 23 arranged on the top of the cover body 21, the bottom plate 211 is provided with a safety valve hole for mounting the safety valve 26 and an exhaust valve hole for mounting the exhaust valve 25, the valve core of the exhaust valve 25 is connected with the bottom plate 211 and / or the top cover 23 through a second spring 252, the valve core of the exhaust valve 25 can pressurize and seal the exhaust valve hole under the action of the second spring 252, the valve core of the safety valve 26 is connected with the bottom plate 211 and / or the top cover 23 through a third spring 261, and the valve core of the safety valve 26 can pressurize and seal the safety valve hole under the action of the third spring 261.

[0053] The top cover 23 in the application is buckled on the opening at the top of the cover body 21, forming a structure for sealing the containing cavity 213, so that the locking unit 22, the non-opening valve 24, the exhaust valve 25, the safety valve 26 and the like on the pressure cover are all shielded and sealed, which can improve the overall appearance of the cup, and in addition, when the top cover 23 is buckled on the cover body 21, in order to improve the combination effect of buckling, a protruding part 231 matched with the side plate 212 of the cover body 21 can be arranged on the bottom surface of the top cover 23, referring to the drawings, when the top cover 23 and the cover body 21 are assembled, the protruding part 231 is attached to the inner wall of the side plate 212 of the cover body 21.

[0054] Further, the bottom surface of the top cover 23 is provided with an annular first boss 251 corresponding to the exhaust valve 25, the surface of the first boss 251 is formed with an inclined surface, the exhaust valve 25 is provided with a second boss opposite to the inclined surface, the second boss is in abutment with the inclined surface under the action of the second spring 252, the top of the exhaust valve 25 is provided with an operating rod penetrating through the top cover 23 and extending out of the top cover 23, and rotating the operating rod can open the exhaust valve hole for exhaust under the mutual extrusion of the inclined surface and the second boss.

[0055] In actual use, the operator can manually depressurize the inner cavity of the cup body 10 through the exhaust valve 25, so that when the pressure cover 20 is desired to be opened, the pressure can be quickly released, and after the air pressure in the cup body 10 is reduced, the stop valve 24 will be lowered under the action of its own gravity, thereby the blocking of the locking unit 22 can be released, at this time the pressure cover 20 can be opened; the safety valve 26 in the embodiment is used to automatically depressurize when the air pressure increases to a certain degree and manual depressurization is not performed, thereby avoiding the danger that may be caused by the excessive pressure in the cup body 10.

[0056] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiment. Any modification that does not deviate from the function and structural principle of the present application shall be included in the scope of the claims.

Claims

1. An electrically heated press pot comprising a pot body (10) and a press cover (20), the pot body (10) comprising an inner container (12) and an electric heating assembly arranged at the outer bottom wall of the inner container (12), characterized in that, The pressure cover can pressure seal the cup body (10), the pressure cover (20) comprises a cover body (21), a locking unit (22) arranged on the cover body (21), and a stop valve (24), the locking unit (22) comprises a locking position for locking the cup body (10) and the cover body (21), the stop valve (24) is slidingly arranged on the cover body (21), the stop valve (24) can extend into the inner cavity of the inner container (12) when the pressure cover (20) is buckled on the cup body (10), and in the case that the pressure difference between the inside and outside of the inner container (12) is greater than a preset pressure difference, the stop valve (24) slides along the cover body to a stop position to keep the locking unit (22) in the locking position, the locking unit comprises operation ends protruding from opposite sides of the pressure cover, and in the case that the pressure difference between the inside and outside of the inner container (12) does not exceed the preset pressure difference, the two operation ends are unlocked when simultaneously subjected to an operating pressure.

2. The electrically heated pressurized cup of claim 1, wherein, The cover body (21) comprises a bottom plate (211) and a side plate (212) protruding from the top surface of the bottom plate (211), a containing cavity (213) is formed between the side plate (212) and the bottom plate (211) on the top surface side of the bottom plate (211), the locking unit (22) is slidingly connected to the side plate (212) in the radial direction of the cover body (21), the stop valve (24) is slidingly connected to the bottom plate (211) in the axial direction of the cover body (21), and the sliding paths of the locking unit (22) and the stop valve (24) intersect.

3. The electrically heated pressurized cup of claim 2, wherein, The pressure cover comprises two symmetrical locking units (22), each of the locking units (22) comprises a first plate body (221), a second plate body (222), and a connecting plate (223) connecting the first plate body (221) and the second plate body (222), the second plate body (222) is located on the top of the first plate body (221), the side plate (212) is provided with a first sliding groove and a second sliding groove corresponding to the first plate body (221) and the second plate body (222) respectively, the first end of the first plate body (221) penetrates through the first sliding groove and is slidingly connected with the first sliding groove, the first end of the second plate body (222) penetrates through the second sliding groove and is slidingly connected with the second sliding groove, the first end of the second plate body (222) forms the operation end, the second end of the first plate body (221) and the second end of the second plate body (222) are arranged in the containing cavity (213), the bottom plate (211) is provided with a stop hole arranged between the two locking units (22), the stop valve (24) is slidingly arranged in the stop hole, the first end of the stop valve (24) is arranged in the containing cavity (213), and the second end of the stop valve (24) penetrates through the bottom plate (211) and extends out of the bottom of the bottom plate (211).

4. The electrically heated pressurized cup of claim 3, wherein, The first end of the closing valve (24) comprises a first outer circular wall (242), which is arranged between the two first plate bodies (221) in the locked position, the maximum distance between the two first plate bodies (221) is set to be different from the diameter of the first outer circular wall (242), and the first outer circular wall (242) can stop the first plate bodies (221) and keep the locking unit (22) in the locked position when the closing valve (24) is in the closed position.

5. The electrothermal pressure cup of claim 3, wherein, The inner side wall of the open end of the cup body (10) is provided with a groove (11) corresponding to the first end of the first plate body (221), and the first end of the first plate body (221) can be inserted into the groove (11) to realize the locking of the pressure cover and the cup body (10) in the locked position. The distance between the groove (11) and the top of the cup body (10) is less than the distance between the second plate body (222) and the first plate body (221), so that when the pressure cover is buckled on the cup body (10), the second plate body (222) is located at the upper part of the cup body (10).

6. The electrically heated pressurized cup of claim 3, wherein, The two second plate bodies (222) are connected by a first spring (224), which can keep the two locking units (22) in the locked position, and pressing the first end of the second plate body (222) can compress the first spring (224) and unlock the cup body (10) and the cover body (21).

7. The electrothermal pressure cup of claim 3, wherein, The bottom surface of the bottom plate (211) is provided with a cylinder (28) surrounding the closing hole, the second end of the closing valve (24) is arranged in the cylinder (28), the bottom of the cylinder (28) is an open structure, and the bottom of the cylinder (28) is provided with a flexible sleeve (29) for sealing the closing valve (24) in the cylinder (28).

8. The electrothermal pressure cup of claim 1, wherein, The bottom outer side wall of the cover body (21) is provided with a sealing element (27) matched with the inner wall of the inner container (12), the cup body (10) further comprises a heat insulation layer (13) arranged outside the inner container (12), and a cavity (14) is formed between the heat insulation layer (13) and the bottom wall of the inner container (12), and the electric heating assembly is arranged in the cavity (14).

9. The electrothermal pressure cup of any one of claims 1 to 8, wherein, The pressure cover comprises a safety valve (26) arranged on the cover body (21), an exhaust valve (25) and a top cover (23) arranged on the top of the cover body (21), a safety valve hole for mounting the safety valve (26) and an exhaust valve hole for mounting the exhaust valve (25) are arranged on the bottom plate of the cover body (21), a second spring (252) is connected between the valve core of the exhaust valve (25) and the bottom plate (211) and / or the top cover (23), the valve core of the exhaust valve (25) can pressurize the exhaust valve hole under the action of the second spring (252), a third spring (261) is connected between the valve core of the safety valve (26) and the bottom plate (211) and / or the top cover (23), the valve core of the safety valve (26) can pressurize the safety valve hole under the action of the third spring (261).

10. The electrothermal pressure cup of claim 9, wherein, The bottom surface of the top cover (23) is provided with a first annular boss (251) corresponding to the exhaust valve (25), the surface of the first boss (251) is formed with an inclined surface, the exhaust valve (25) is provided with a second boss opposite to the inclined surface, the second boss is in abutment with the inclined surface under the action of the second spring, the top of the exhaust valve (25) is provided with an operating rod penetrating through the top cover (23) and extending out of the top cover (23), rotating the operating rod can open the exhaust valve hole for exhaust under the mutual extrusion of the inclined surface and the second boss.

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