CN210043738U

CN210043738U - Mixer

Info

Publication number: CN210043738U
Application number: CN201920524378.XU
Authority: CN
Inventors: 陈应军; 高晖
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-02-11
Anticipated expiration: 2029-04-17

Abstract

The application provides a mixer. The mixer comprises a base, a cup component, a mixing cutter and a pressure limiting device. The cup component can be assembled on the base and is provided with a cup cavity. The stirring cutter is arranged in the cup cavity. The pressure limiting device comprises a pressure maintaining state and a pressure relief state. Under the pressure maintaining state, the pressure limiting device seals the cup cavity, and under the pressure releasing state, the pressure limiting device is jacked up to open the cup cavity. The pressure limiting device comprises at least one of a cup cover component which can be movably covered on the cup component, a pressure limiting cover which can be movably assembled on the cup cover component and is provided with a pressure limiting sealing ring between the cup cover component and the pressure limiting cover, and a pressure limiting cover which is covered outside the cup cover component and the cup component and can move relative to the cup component. The pressure relief area is large, and the pressure relief speed is high.

Description

Mixer

Technical Field

The application relates to a small household electrical appliance field especially relates to a mixer.

Background

With the increasing living standard of people, many different types of blenders appear on the market. The functions of the blender may include, but are not limited to, soymilk making, juice squeezing, rice paste making, meat grinding, ice shaving, coffee making, and/or mask blending. The stirrer can comprise a soybean milk machine or a broken-wall food processor and other machines for crushing and stirring food materials.

When the conventional stirring machine is used for heating food materials, the heating temperature is not more than 100 ℃, and is also called as the boiling point temperature of water. However, the temperature of the material is difficult to reach 100 ℃ under actual environmental pressure, particularly in high altitude areas, the boiling point of water is only 90 ℃ or lower due to thin air, and the highest temperature of the material heated by the stirrer is only 90 ℃ or lower.

In real life, some foods are made with special requirements on temperature, for example, when soybean milk is made, if the temperature is below 100 ℃, the boiled soybean milk often has delicate flavor of beans or is not cooked at all, and the soybean milk is difficult to be taken out. If the temperature reaches 100 ℃ or above, the boiled soybean milk can be cooked thoroughly, and the cooked soybean milk has thick milk flavor, better taste and more nutrition. In order to solve the problem of the food being not cooked well, the boiling temperature, i.e., the boiling point of water, must be increased to 100 ℃ or higher, and therefore, the pressure in the cup of the blender must be increased to a pressure higher than the standard atmospheric pressure. When the air pressure in the cup is too large, the pressure needs to be relieved, so that the air pressure in the cup is kept in a certain range, and the safety is ensured. The effective and rapid pressure relief is particularly important for the safety of micro-pressure cooking.

SUMMERY OF THE UTILITY MODEL

The present application is directed to an improved blender.

One aspect of the present application provides a blender, comprising: a machine base; the cup assembly can be assembled on the base and is provided with a cup cavity; the stirring cutter is arranged in the cup cavity; and the pressure limiting device comprises a pressure maintaining state and a pressure relief state, the pressure limiting device seals the cup cavity in the pressure maintaining state, the pressure limiting device is jacked up to open the cup cavity in the pressure relief state, and the pressure limiting device comprises at least one of a cup cover assembly movably covered on the cup assembly, a pressure limiting cover movably assembled on the cup cover assembly and provided with a pressure limiting sealing ring between the cup cover assembly and the cup cover assembly, and a pressure limiting cover which is covered outside the cup cover assembly and the cup assembly and can move relative to the cup assembly.

Further, the pressure limiting device comprises a cup cover assembly, the cup cover assembly comprises an outer cover and an inner cover assembled on the outer cover, and the inner cover and the outer cover are jacked up in the pressure relief state. The outer cover and the inner cover are used for pressure relief, and the structure is simple.

Further, the pressure limiting device comprises the pressure limiting cover, the cup cover assembly comprises an outer cover and an inner cover assembled on the outer cover, the inner cover is provided with a cup cover exhaust hole communicated with the cup cavity, and the pressure limiting cover is in sealing contact with the inner cover through the pressure limiting sealing ring to seal the cup cover exhaust hole in the pressure maintaining state. The cup cover exhaust hole formed by the inner cover is convenient to clean and not easy to block.

Furthermore, the pressure limiting device comprises the pressure limiting cover, and a pressure limiting cover elastic part is fixedly connected between the pressure limiting cover and the cup cover assembly.

Further, the pressure limiting device comprises a pressure limiting cover which can move relative to the cup cover assembly, the cup cover assembly is provided with a cup cover exhaust hole communicated with the cup cavity, and the pressure limiting cover is in sealing connection with the cup cover assembly to seal the cup cover exhaust hole in the pressure maintaining state. The pressure relief area is large, and the pressure relief is quick.

Furthermore, a sealing platform is transversely arranged on the inner wall of the cup cover exhaust hole of the cup cover assembly, a sealing bulge is convexly arranged downwards on the pressure limiting cover, and the sealing bulge is in sealing butt joint with the sealing platform in the pressure maintaining state; the sealing effect is good.

And/or the pressure limiting cover is provided with a cover exhaust hole, the cover exhaust hole is isolated from the cup cover exhaust hole under the pressure maintaining state, and the cover exhaust hole is communicated with the cup cover exhaust hole under the pressure releasing state. The cup cover exhaust hole and the cover exhaust hole are not easy to block, and the safety is high.

Furthermore, a pressure limiting cover elastic piece is fixedly connected between the pressure limiting cover and the cup cover assembly.

Furthermore, the cup cover assembly comprises a locking part, and the cup cover assembly is locked on the cup assembly through the locking part.

Further, the pressure limiting device comprises the cup cover assembly and the pressure limiting cover, and the cup cover assembly and the pressure limiting cover are jacked up in the pressure relief state. The pressure relief area is large, and the pressure relief is quick.

Further, the pressure limiting cover is assembled on the cup cover assembly; or the pressure limiting cover and the cup cover assembly are of an integrated structure.

Further, the bowl cover subassembly includes the enclosing cover, assemble in the inner cup of enclosing cover and assemble in the bowl cover coupler of enclosing cover, the inner cup with the bowl cover coupler electricity is connected, and the downward protruding anti-overflow arch that is equipped with. The inner cover is provided with an anti-overflow bulge for preventing overflow, and the anti-overflow cup is simple in structure and low in cost.

The pressure limiting device of the embodiment of the application comprises at least one of the cup cover assembly, the pressure limiting cover and the pressure limiting cover, and pressure is relieved by jacking the pressure limiting device in a pressure relief state, so that the pressure relief area is large, and the pressure relief speed is high.

Drawings

FIG. 1 is a perspective view of one embodiment of a blender according to the present application;

FIG. 2 is a cross-sectional view of the cup assembly and lid assembly of the blender shown in FIG. 1, taken along line A-A of FIG. 1;

FIG. 3 is an exploded perspective view of the cup assembly and lid assembly of the blender shown in FIG. 1;

FIG. 4 is an enlarged partial view of the cup assembly and lid assembly shown in FIG. 2;

FIG. 5 is a partial cross-sectional view of another embodiment of a blender according to the present application;

FIG. 6 is a partial cross-sectional view of another embodiment of a blender according to the present application;

FIG. 7 is a cross-sectional view of another embodiment of a blender according to the present application;

FIG. 8 is a cross-sectional view of another embodiment of a blender according to the present application;

FIG. 9 is a cross-sectional view of another embodiment of a blender according to the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "plurality" or "a number" and the like mean two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The mixer of this application embodiment includes frame, cup subassembly, stirring cutter and pressure limiting device. The cup component can be assembled on the base and is provided with a cup cavity. The stirring cutter is arranged in the cup cavity. The pressure limiting device comprises a pressure maintaining state and a pressure relief state. Under the pressure maintaining state, the pressure limiting device seals the cup cavity, and under the pressure releasing state, the pressure limiting device is jacked up to open the cup cavity. The pressure limiting device comprises at least one of a cup cover component which can be movably covered on the cup component, a pressure limiting cover which can be movably assembled on the cup cover component and is provided with a pressure limiting sealing ring between the cup cover component and the pressure limiting cover, and a pressure limiting cover which is covered outside the cup cover component and the cup component and can move relative to the cup component.

The pressure limiting device comprises at least one of a cup cover assembly, a pressure limiting cover and a pressure limiting cover, and the pressure is relieved by jacking the pressure limiting device under the pressure relief state, so that the pressure relief area is large, and the pressure relief speed is high.

In a pressure cooker such as a pressure cooker, for example, pressure is released through an exhaust pipe and a pressure limiting valve covering the exhaust pipe, and the exhaust pipe has a small and long inner diameter, a small pressure release area, and a low pressure release speed. For the stirrer for stirring food materials by high-speed rotation, the splashed food materials easily block the exhaust pipe in the working process, and the exhaust pipe is long and thin and is not easy to clean, so that inconvenience is brought to use, and potential safety hazards are easily brought due to incomplete cleaning. The mixer pressure release area of this application embodiment is big, and the pressure release is fast, and can avoid long and thin blast pipe to block up the inconvenient abluent problem, improves the security.

FIG. 1 illustrates a perspective view of one embodiment of a blender 100. Blender 100 includes a base 105, a cup assembly 101, and a lid assembly 108. Fig. 2 shows a longitudinal cross-sectional view of cup assembly 101 and lid assembly 108 taken along line a-a of fig. 1. Blender 100 also includes blending tool 106.

The mixer 100 of this application embodiment can be minute-pressure mixer, can rise the atmospheric pressure in the cup subassembly 101, makes the atmospheric pressure in the cup subassembly 101 be greater than standard atmospheric pressure, carries out pressure cooking to eating the material, can heat the edible material to more than 100 degrees. The food materials are heated after the air pressure in the cup assembly 101 rises, so that the cooking time can be shortened, the food materials can be well cooked, the taste and the nutrition of the food materials are guaranteed, and more food materials can be cooked. In addition, the stirrer 100 can stir and pressure cook food materials, so that more functions can be realized, more kinds of food can be made, and the usability of the product is greatly improved. In one embodiment, the air pressure within the cup assembly 101 may rise below 20KPa and above the standard atmospheric pressure. When the blender 100 is pressurized, the lid assembly 108 is in a sealed state, which maintains the pressure inside the cup without venting through the central venting lid.

The cup assembly 101 may be assembled to a base 105, with a cup cavity 110. The cup cavity 110 of the cup assembly 101 may contain food material therein for whipping. The stirring blade 106 is disposed within the cup cavity 110. A stirring blade 106 may be assembled to the bottom of the cup assembly 101 for stirring the food material. The housing 105 may include a motor (not shown) that drives the blending tool 106 to rotate to blend the food material. A control power supply (not shown) may also be mounted within housing 105 to control operation of blender 100, to provide power to some of the electrical components of blender 100, and so forth.

The bottom of the cup assembly 101 is provided with heating means 107 for heating the food material in the cup cavity 110. In one embodiment, the heating device 107 may comprise a heating tube heating device. In another embodiment, the heating device 107 may comprise an electromagnetic heating device. The heating device 107 may heat the food material after pressurizing the cup cavity 110, thereby performing pressure cooking.

The bottom of the cup assembly 101 is provided with a cup bottom plate 113, and the cup bottom plate 113 is made of metal. The heating device 107 may be assembled to the cup chassis 113, and the cup chassis 113 may conduct heat. A cup bottom coupler 114 electrically connected to the base 105 is assembled to the bottom of the cup assembly 101, and the cup bottom coupler 114 is electrically connected to the cup bottom base 113. The top of the cup assembly 101 may be provided with a cup top coupler 115, and the cup top coupler 115 may be electrically connected to the cup bottom coupler 114 by a wire or the like.

In one embodiment, the cup assembly 101 includes an inner cup 111 and an outer cup 112 that houses the inner cup 111. In one embodiment, the inner cup 111 comprises a metal cup, the metal cup 111 forming the cup cavity 110, and the outer cup 112 receiving the metal cup. The metal cup increases the compression resistance of the cup body, and the safety of the cup when the cup is pressurized is ensured to the maximum extent. The metal cup is made of food-grade materials. The material of the metal cup may include an alloy, such as hardware, stainless steel. The thickness range of the metal cup material is 0.6mm to 1.2mm, so that the safety of the cup when the pressure is applied is ensured.

In one embodiment, the outer cup 112 comprises plastic, which may provide thermal insulation to prevent burning of the user. In other embodiments, the outer cup 112 may comprise other materials, such as metals, ceramics, enamels, and the like. In another embodiment, the outer cup 112 may be omitted.

In some embodiments, the inner cup 111 is integrally formed with the cup bottom tray 113. In other embodiments, the cup base 113 and the inner cup 111 are formed separately, and the cup base 113 is assembled to the inner cup 111.

The cap assembly 108 may be disposed over the cup assembly 101. Fig. 3 is an exploded perspective view of cup assembly 101 and lid assembly 108. Fig. 4 shows an enlarged view of the partial region 10 shown in fig. 2. Referring collectively to fig. 3 and 4, in the illustrated embodiment, lid assembly 108 includes an outer lid 121, an inner lid 120 assembled to outer lid 121, and a lid coupler 124 assembled to outer lid 121.

In one embodiment, the inner lid 120 comprises a metal lid that fits over a metal cup and the outer lid 121 fits over the metal lid. The metal cover increases the pressure resistance degree of the cup cover, and the safety of the cup when the cup is pressurized is ensured to the maximum extent. The metal cover is made of food-grade materials. The metal cover may be made of an alloy, such as metal or stainless steel. In one embodiment, the metal cover is made of a material with a thickness ranging from 0.6mm to 1.2mm, so that the safety of the cup when the cup is pressurized is ensured.

Lid sealing ring 123 is assembled with inner lid 120, and when lid assembly 108 is assembled to cup assembly 101, lid sealing ring 123 seals the gap between inner lid 120 and the rim of cup assembly 101. In one embodiment, lid seal 123 includes at least one rib 126 projecting toward cup assembly 101 to enhance sealing. In one embodiment, lid seal 123 insulates metallic inner lid 120 from metallic inner cup 111.

In one embodiment, inner lid 120 is electrically coupled to lid coupler 124 and has a downwardly protruding spill prevention protrusion 125. Lid coupler 124 mates with top coupler 115 when lid assembly 108 is placed on cup assembly 101. Metallic inner lid 120 is electrically connected to lid coupler 124 and to base 105 through lid coupler 124, top-of-cup coupler 115, and bottom-of-cup coupler 114. When the liquid level rises and contacts the anti-overflow protrusion 125 during heating of the food material, the food material makes the inner lid 120 and the cup bottom tray 113 connected in a short circuit, and the base 105 detects a short-circuit signal, i.e., an anti-overflow signal, and can control the heating device 107 to stop heating, thereby preventing the food material from overflowing. The anti-overflow protrusion 125 is formed on the inner cap 120, which has a simple structure and low cost.

The outer lid 121 includes plastic, which may insulate heat, improve the appearance of the lid 102, and protect the components assembled within the lid 102. In some embodiments, the inner cover 120 and the outer cover 121 may be assembled by screws, or assembled by a snap-fit manner. In other embodiments, inner cover 120 or outer cover 121 may be omitted.

Blender 100 includes a pressure limiting device that includes a pressure maintaining state and a pressure relieving state. In the pressure maintaining state, the pressure limiting device seals the cup cavity 110, and in the pressure releasing state, the pressure limiting device is jacked up to open the cup cavity 110. The pressure limiting device comprises at least one of a cup cover component which can be movably covered on the cup component, a pressure limiting cover which can be movably assembled on the cup cover component and is provided with a pressure limiting sealing ring between the cup cover component and the pressure limiting cover, and a pressure limiting cover which is covered outside the cup cover component and the cup component and can move relative to the cup component. The pressure relief area is large, and the pressure relief speed is high.

In the embodiment shown in fig. 1-4, the pressure limiter includes a cap assembly 108. The cap assembly 108 movably covers the cup assembly 101. Under the pressure maintaining state, the cap assembly 108 and the cup assembly 101 are sealed, so that the cup cavity 110 is sealed. Under the pressure relief state, the cup cover assembly 108 is jacked up by steam in the cup cavity 110, and the cup cover assembly 108 is opened, so that the cup cavity 110 is communicated with the outside to relieve pressure. When the air pressure in the cup cavity 110 is low, the cap assembly 108 is closed and sealed with the cup assembly 101, and is in a pressure maintaining state. After the food material in the cup cavity 110 is heated, when the air pressure in the cup cavity 110 rises to a certain degree, the cup cover assembly 108 is jacked up by the steam to release the pressure. When the air pressure in the cup cavity 110 is reduced, the cap assembly 108 falls down to seal with the cup assembly 101, and enters a pressure maintaining state.

In one embodiment, the pressure limiting device opens the vent to allow venting when the pressure P in the cup cavity 110 is greater than G/S. Wherein G represents the weight of the pressure-limiting device and S represents the lateral area of the pressure-limiting device facing the cup cavity 110 that can receive steam. When the pressure P in the cup cavity 110 is not more than mg/S, the pressure limiting device is covered to seal the cup cavity 110. In this embodiment, G is the weight of the lid assembly 108, and changing the weight of the lid assembly 108 changes the threshold at which the pressure in the cup reaches. The weight of cap assembly 108 may be designed based on the threshold of pressure within the desired cup. In one embodiment, the area S ═ pi (D/2) ²And D represents the diameter of the circular bottom surface of lid assembly 108.

When the cup cover assembly 108 is opened, the pressure relief area is large, the pressure relief speed is high, and the safety problem of exhaust pipe blockage is avoided. And the cup cover assembly 108 is used as a pressure limiting device, so that the structure is simple and the cost is low. In one embodiment, lid assembly 108 has inner lid 120 and outer lid 121 lifted in a depressurized state. Lid assembly 108 is fully raised. Cap assembly 108 is simple in construction.

FIG. 5 shows a partial cross-sectional view of another embodiment of a blender 200 wherein the housing is not shown. The blender 200 shown in FIG. 5 is similar to the blender 100 shown in FIGS. 1-4, and in comparison to the blender 100 shown in FIGS. 1-4, the blender 200 shown in FIG. 5 includes a pressure limiting lid 202 movably assembled to a lid assembly 208 and having a pressure limiting seal 203 disposed between the lid assembly 208 and the lid assembly 208. The pressure limiting device includes a pressure limiting cap 202. Under the pressure maintaining state, the pressure limiting cover 202 is in sealing contact with the cap assembly 208 through the pressure limiting sealing ring 203. Under the pressure relief state, the pressure limiting cover 202 is jacked up by the steam in the cup, so that the cup cavity 110 is communicated with the outside for exhausting. The weight of the pressure limiting cap 202 can be varied to vary the threshold at which the pressure within the cup reaches. In one embodiment, the pressure limiting seal 203 may be assembled to the bottom end of the pressure limiting cap 202.

In one embodiment, the inner lid 220 defines a lid vent 226 in communication with the cup cavity 110, and the pressure limiting cover 202 sealingly contacts the inner lid 220 via the pressure limiting sealing ring 203 to seal the lid vent 226 under a pressure maintaining condition. Under the pressure relief state, the pressure limiting cover 202 is jacked up, so that the cover vent hole 226 is communicated with the outside, and the cup cavity 110 is communicated with the outside for exhausting. In one embodiment, the outer cover 221 defines a limiting hole 222 vertically penetrating the outer cover 221. The pressure-limiting cover 202 passes through the limiting hole 222 and is pressed against the inner cover 220 in a pressure-keeping state.

In one embodiment, lid vent hole 226 is formed in a longitudinal sidewall of spill-preventing projection 225, and an opening 227 is formed above spill-preventing projection 225, lid vent hole 226 communicating with opening 227. The pressure-limiting cover 202 is located above the spill-preventing protrusion 225. Under the pressure maintaining state, the pressure limiting cover 202 seals the opening 227 above the overflow preventing protrusion 225, so that the cover vent hole 226 is isolated from the outside. Under the pressure relief state, the pressure limiting cover 202 is opened, steam in the cup cavity 110 enters the opening 227 from the cup cover exhaust hole 226 and is exhausted from a gap between the inner cover 220 and the outer cover 221 and/or a gap between the pressure limiting cover 202 and the outer cover 221, the pressure relief area is large, and the pressure relief is quick. Lid vent hole 226 is convenient to clean compared to a slender vent tube.

In another embodiment, the pressure limiter may include a cap assembly 208 and a pressure limiting cap 202. When the air pressure in the cup reaches a first threshold value, the pressure limiting cover 202 is jacked up to exhaust. When the pressure-limiting cover 202 cannot be normally opened for air discharge due to blockage of the cover vent hole 226 or other reasons, when the air pressure in the cup reaches a second threshold value, which is larger than the first threshold value, the cover assembly 208 is jacked up for air discharge, so that the safety is improved.

FIG. 6 illustrates a partial cross-sectional view of another embodiment of a blender 300, wherein the housing is not shown. The blender 300 shown in FIG. 6 is similar to the blender 200 shown in FIG. 5, and in comparison to the blender 200 shown in FIG. 5, a pressure limiting lid 202 and a lid assembly 208 of the blender 300 shown in FIG. 6 are fixedly connected with a pressure limiting lid elastic member 304. In one embodiment, the pressure limiting cover spring 304 may comprise a compression spring. One end of the pressure-limiting cover elastic piece 304 is fixedly connected to the pressure-limiting cover 202, and the other end is fixedly connected to the cup cover assembly 208. In one embodiment, a pressure limiting lid spring 304 is attached to the inner lid 220 of the lid assembly 208. In one embodiment, the pressure limiting cap resilient member 304 extends downwardly into the spill-resistant protrusion 225, abutting within the spill-resistant protrusion 225. The pressure limiting cover elastic member 304 passes upward through the pressure limiting seal ring 303 and enters the pressure limiting cover 202.

Under the pressure maintaining state, the pressure limiting cover 202 and the cup cover assembly 208 are pulled towards each other by the pulling force of the pressure limiting cover elastic piece 304, so that the pressure limiting cover 202 and the cup cover assembly 208 are in sealing contact. When the pressure in the cup cavity 110 is greater than the sum of the pulling force of the pressure limiting cover elastic member 304 and the gravity of the pressure limiting cover 202, the pressure limiting cover 202 is opened, and the air is exhausted and decompressed. The threshold value reached by the air pressure in the cup can be changed by changing at least one of the elastic force of the pressure limit cover elastic member 304 and the weight of the pressure limit cover 202.

FIG. 7 shows a cross-sectional view of another embodiment of a blender 400. The blender 400 shown in FIG. 7 includes a pressure limiting cover 409 that covers the lid assembly 408 and the cup assembly 401 and is movable relative to the cup assembly 401. The pressure limiting device comprises a pressure limiting cover 409, the pressure limiting cover 409 seals the cup cavity 110 in a pressure maintaining state, the air pressure in the cup is increased to a threshold value, the pressure limiting cover 409 is jacked up, and air is exhausted. The pressure relief area is large, and the pressure relief is quick.

In the embodiment shown in fig. 7, the pressure limiting means comprises a pressure limiting cover 409 movable relative to the lid assembly 408. The pressure containment cap 409 is movable relative to the cap assembly 408 and the cup assembly 401. Cup lid assembly 408 defines a cup lid vent hole 426 communicating with the cup cavity. Under the pressure maintaining state, the pressure limiting cover 409 is in sealing fit with the cup cover assembly 408 to seal the cup cover vent hole 426. When the air pressure in the cup cavity 110 increases to a threshold value, the pressure limiting cover 409 is jacked up, the cup cover vent hole 426 is opened to exhaust air, and the cup enters a pressure relief state. After the air pressure in the cup is reduced, the pressure limiting cover 409 falls down and enters a pressure maintaining state. By varying the weight of the pressure limiting cover 409, the threshold of air pressure within the cup can be varied. In one embodiment, the pressure limiting cover 409 may act as a shield to provide sound insulation and reduce the sound transmitted to the outside of the blender 400 during blending.

In one embodiment, the pressure limiting cover 409 is provided with a cover vent hole 491, the cover vent hole 491 is isolated from the lid vent hole 426 under the pressure maintaining state, and the cover vent hole 491 is communicated with the lid vent hole 426 under the pressure releasing state. Under the pressure relief state, the pressure limiting cover 409 is jacked up, the cup cover vent hole 426 is opened, and steam is exhausted out of the cup cavity 110 through the cup cover vent hole 426 and further exhausted to the outside through the cover vent hole 491 for exhausting. The cover vent holes 491 and the cup cover vent holes 426 are easy to clean and not easy to block. In one embodiment, pressure limiting cover 409 is assembled with cover seal 403 to seal lid vent hole 426 under pressure holding conditions.

In one embodiment, lid assembly 408 has a sealing platform 427 disposed laterally on the inner wall of lid vent hole 426, and pressure limiting cover 409 has a sealing protrusion 492 protruding downward. Under the pressure keeping state, the sealing bulge 492 is in sealing and abutting connection with the sealing platform 427, and the sealing effect is good. In one embodiment, cap seal ring 403 is assembled to seal projection 492.

In one embodiment, the cap assembly 408 includes a locking portion 481, and the cap assembly 408 is locked to the cup assembly 401 by the locking portion 481. In the operation of the blender 400, the cap assembly 408 is locked with the cup assembly 401, the increased air pressure in the cup moves the pressure limiting cover 409, and the cap assembly 408 is not moved.

FIG. 8 shows a cross-sectional view of another embodiment of a blender 500. The blender 500 shown in FIG. 8 is similar to the blender 400 shown in FIG. 7. In contrast to the blender 400 shown in FIG. 7, a pressure limiting cover elastic member 504 is fixedly connected between the pressure limiting cover 509 and the lid assembly 508 of the blender 500 shown in FIG. 8. Under the pressure maintaining state, the tension of the elastic member 504 of the pressure limiting cover pulls the pressure limiting cover 509 and the cap assembly 508 toward each other, so that the pressure limiting cover 509 and the cap assembly 508 are in sealing contact. When the pressure in the cup cavity 410 is greater than the sum of the pulling force of the pressure-limiting cover elastic member 504 and the gravity of the pressure-limiting cover 509, the pressure-limiting cover 509 is opened to exhaust and release the pressure. The threshold value of the air pressure in the cup can be changed by changing at least one of the elastic force of the pressure-limiting cover elastic member 504 and the weight of the pressure-limiting cover 509. In one embodiment, the pressure limiting cap spring 504 comprises a compression spring.

In one embodiment, the upper end of the pressure-limiting cap spring 504 abuts against the sealing protrusion 592 of the pressure-limiting cap 509. The pressure-limiting cap elastic member 504 penetrates the cap seal ring 403 and abuts against the bottom surface of the seal protrusion 592. In one embodiment, the bottom of the lid vent opening 526 extends laterally inward to form a bottom wall 528, and the bottom wall 582 has a bottom wall vent aperture 529 that communicates between the cup cavity 410 and the lid vent opening 526. The lower end of the pressure-limiting cover elastic member 504 abuts against the bottom wall 582.

FIG. 9 illustrates a cross-sectional view of another embodiment of a blender 600. The blender 600 shown in FIG. 9 is similar to the blender 400 shown in FIG. 7. In contrast to the blender 400 shown in FIG. 7, the pressure limiting device of the blender 600 shown in FIG. 9 includes a lid assembly 608 and a pressure limiting cap 609. The cap assembly 608 is movably disposed over the cup assembly 401 and the pressure limiting cap 609 is movable relative to the cup assembly 401. Under the pressure relief state, the cup cover assembly 608 and the pressure limiting cover 609 are jacked up. The pressure-limiting cover 609 and the cap assembly 608 open together for venting. In some embodiments, the pressure limiting cap 609 is assembled to the cap assembly 608. The pressure-limiting cover 609 is locked with the cap assembly 608. In other embodiments, the pressure limiting cover 609 and the cap assembly 608 are integrally formed, and may be integrally formed. When the air pressure in the cup cavity 410 exceeds the sum of the gravity of the pressure limiting cover 609 and the cup cover assembly 608, the pressure limiting cover 609 and the cup cover assembly 608 are jacked up, and steam can escape from a gap between the cup cover assembly 608 and the cup assembly 401 and is exhausted through a cover exhaust hole 691 of the pressure limiting cover 609. Varying at least one of the weight of the cap assembly 608 and the weight of the pressure limiting cap 609 may vary the threshold of air pressure within the cup.

In other embodiments, the pressure limiting device includes a pressure limiting cap and a pressure limiting cover. Under the pressure relief state, the pressure limiting cover and the pressure limiting cover can be jacked up to exhaust, and the pressure relief speed is high. In other embodiments, the pressure limiting device comprises a cup cover assembly, a pressure limiting cover and a pressure limiting cover. In one embodiment, the pressure limiting cap opens the vent when the air pressure within the cup exceeds a first threshold. When the pressure limiting cover can not normally exhaust and the air pressure in the cup exceeds a second threshold value, the cup cover assembly and the pressure limiting cover can be opened to exhaust. The second threshold is greater than the first threshold.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mixer, its characterized in that: it includes:

a housing (105);

a cup assembly (101) which can be assembled on the base (105) and is provided with a cup cavity (110);

the stirring cutter (106) is arranged in the cup cavity (110); and

the pressure limiting device comprises a pressure maintaining state and a pressure relief state, wherein the pressure limiting device seals the cup cavity (110) in the pressure maintaining state, and is jacked up to open the cup cavity (110) in the pressure relief state, and comprises a cup cover component (108) movably covered on the cup component (101), a pressure limiting cover (202) movably assembled on the cup cover component and provided with a pressure limiting sealing ring (203) between the cup cover component and the pressure limiting cover, and at least one of a pressure limiting cover (409) covered outside the cup cover component and the cup component and capable of moving relative to the cup component.

2. A mixer according to claim 1, wherein: the pressure limiting device comprises the cup cover assembly (108), the cup cover assembly (108) comprises an outer cover (121) and an inner cover (120) assembled on the outer cover (121), and the inner cover (120) and the outer cover (121) are jacked up in the pressure relief state.

3. A mixer according to claim 1, wherein: the pressure limiting device comprises a pressure limiting cover (202), the cup cover assembly comprises an outer cover and an inner cover assembled on the outer cover, the inner cover is provided with a cup cover exhaust hole (226) communicated with the cup cavity, and under the pressure maintaining state, the pressure limiting cover (202) is in sealing contact with the inner cover through a pressure limiting sealing ring (203) to seal the cup cover exhaust hole (226).

4. A mixer according to claim 1, wherein: the pressure limiting device comprises the pressure limiting cover (202), and a pressure limiting cover elastic piece (303) is fixedly connected between the pressure limiting cover (202) and the cup cover assembly.

5. A mixer according to claim 1, wherein: the pressure limiting device comprises a pressure limiting cover (409) which can move relative to the cup cover assembly, the cup cover assembly is provided with a cup cover exhaust hole communicated with the cup cavity, and the pressure limiting cover (409) is in sealing connection with the cup cover assembly in the pressure maintaining state to seal the cup cover exhaust hole.

6. A mixer according to claim 5, wherein: the inner wall of the cup cover exhaust hole of the cup cover component is transversely provided with a sealing platform (427), the pressure limiting cover (409) is provided with a sealing bulge (492) in a downward protruding mode, and the sealing bulge (492) is in sealing abutting joint with the sealing platform (427) in the pressure maintaining state;

and/or the pressure-limiting cover (409) is provided with a cover exhaust hole (491), the cover exhaust hole (491) is isolated from the cup cover exhaust hole in a pressure-maintaining state, and the cover exhaust hole (491) is communicated with the cup cover exhaust hole in a pressure-releasing state.

7. A mixer according to claim 5, wherein: and a pressure limiting cover elastic piece (504) is fixedly connected between the pressure limiting cover and the cup cover assembly.

8. A mixer according to claim 5, wherein: the cup cover assembly comprises a lock catch part (481), and the cup cover assembly is locked on the cup assembly through the lock catch part (481).

9. A mixer according to claim 1, wherein: the pressure limiting device comprises the cup cover assembly and the pressure limiting cover, and the cup cover assembly and the pressure limiting cover are jacked up in the pressure relief state.

10. A mixer according to claim 9, wherein: the pressure limiting cover is assembled on the cup cover assembly; or the pressure limiting cover and the cup cover assembly are of an integrated structure.

11. A mixer according to claim 1, wherein: cup cover subassembly (108) include enclosing cover (121), assemble in inner cover (120) of enclosing cover (121) and assemble in the cup cover coupler (124) of enclosing cover, inner cover (120) with cup cover coupler (124) electricity is connected, and the downward protruding anti-overflow arch (125) that is equipped with.