CN214259099U - Safety valve structure and food processor - Google Patents

Abstract

The utility model discloses a relief valve structure and food preparation machine, the relief valve structure includes: the valve comprises a valve body shell, a valve cavity is formed in the valve body shell, and an input port, an output port and a pressure relief port which are communicated with the valve cavity are formed in the valve body shell; the valve core is positioned in the valve cavity and movably connected with the valve body shell; the elastic piece is connected between the valve core and the valve body shell; under the natural state, the elastic piece drives the valve core to block the output port so as to enable the input port and the pressure relief port to be communicated through the valve cavity, and under the driving of external force, the valve core opens the output port and blocks the pressure relief port so as to enable the input port and the output port to be communicated through the valve cavity. The utility model discloses technical scheme has improved food preparation machine's security performance.

Description

Safety valve structure and food processor

Technical Field

The utility model relates to a life electrical apparatus technical field, in particular to relief valve structure and food preparation machine who uses this relief valve structure.

Background

In some food processing machines, such as wall breaking machines, steamers, etc., during the processing of food materials, it is necessary to heat the food material with high temperature steam for cooking. And when food preparation machine is in the steam heating stage, the user took away for example when the pot body of smashing cup or steamer of broken wall machine this moment, the steam outlet of host computer can seal usually, and because the problem that all exists of current heating methods is that the heating member has certain thermal inertia, even heating tube stop work when cup or pot body are taken away, but under thermal inertia waste heat effect, still produce at great steam volume, and steam outlet has sealed this moment, pipeline internal pressure can rise fast, and when machine cup detection switch was unusual, steam generator lasted the heating, pipeline internal pressure will last to rise and produce the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a relief valve structure aims at promoting the security in the food preparation machine use.

In order to achieve the above object, the utility model provides a safety valve structure for food preparation machine, safety valve structure includes:

the valve comprises a valve body shell, a valve cavity is formed in the valve body shell, and an input port, an output port and a pressure relief port which are communicated with the valve cavity are formed in the valve body shell;

the valve core is positioned in the valve cavity and movably connected with the valve body shell; and

the elastic piece is connected between the valve core and the valve body shell;

under the natural state, the elastic piece drives the valve core to block the output port so as to enable the input port and the pressure relief port to be communicated through the valve cavity, and under the driving of external force, the valve core opens the output port and blocks the pressure relief port so as to enable the input port and the output port to be communicated through the valve cavity.

The technical proposal of the utility model is that the valve core driven by the elastic element is arranged in the safety valve structure, and the valve core driven by the elastic element closes the output port under the natural state, so that when a processing execution part (such as a cup body in a wall breaking machine and a pot body in a steamer) in a food processing machine is taken away in the use process of the safety valve structure of the utility model, the output port can be closed by the driving of the elastic element, thereby avoiding the scalding of a user caused by the high-temperature steam sprayed to the user through the output port in some modes of cooking food materials by the high-temperature steam, and because the safety valve structure of the application is taken away in the processing execution part, the input port is communicated with the pressure relief port, therefore, the steam generated by the thermal inertia heating of the heating element of the food processing machine can be effectively discharged from the pressure relief port without causing overlarge pressure in a pipeline in the food processing machine and causing potential safety hazards, and through the utility model discloses a relief valve structure can also realize because simple structure, the lower advantage of cost.

Optionally, the valve element comprises a blocking head and a blocking rod, the blocking head is connected to one end of the blocking rod, one end of the elastic element is abutted to the blocking head, the other end of the elastic element is abutted to the valve body shell, a separation barrel with an opening facing the output port is formed in the valve cavity of the valve body shell, the pressure relief port is communicated with the separation barrel, and the other end of the blocking rod is in insertion fit with the separation barrel so as to open or block the opening of the separation barrel.

In this embodiment, the opening through separating the section of thick bamboo sets up towards the delivery outlet for the case can realize carrying out the selectivity in linear motion process and opening and close delivery outlet and pressure release mouth, and overall structure is simple like this, and the cost is lower.

Optionally, the valve body shell is including dismantling disk seat and the valve gap of connection, the disk seat with the valve gap cooperation is injectd the valve pocket, the delivery outlet sets up on the valve gap, the disk seat includes the seat body and connects the seat body is inboard the separating cylinder, the inner wall of seat body with be formed with the water conservancy diversion between the outer wall of separating cylinder, the input port is seted up in the seat body and with the water conservancy diversion intercommunication.

In this embodiment, through setting up the valve body shell into detachable disk seat and valve gap two parts to the input port sets up on the seat body of disk seat, so overall layout is reasonable, and the assembly of relief valve structure is more convenient.

Optionally, the safety valve structure further includes a first sealing element, the first sealing element is disposed in the valve cavity and fixedly connected to the valve seat, the first sealing element has a first through hole and a second through hole, the first through hole is correspondingly communicated with the partition cylinder, the second through hole is correspondingly communicated with the diversion channel, and the blocking rod can be in sealing fit with an inner wall of the first through hole when extending into the partition cylinder.

In the embodiment, through the arrangement of the first sealing element, the blocking rod of the valve core is firmer in the process of closing the pressure relief hole, and the sealing performance is better.

Optionally, the edge of the first seal is clamped by the valve seat and the valve cover.

In this embodiment, the first sealing member achieves a sealing engagement with the blocking rod while also achieving a seal between the valve cover and the valve seat, which may further simplify the structure of the safety valve.

Optionally, the safety valve structure further includes a second sealing element, the second sealing element is detachably connected to the valve body housing, the second sealing element is provided with a third via hole correspondingly communicated with the output port, and the plugging head is in contact fit with an inner wall of the third via hole when plugging the output port.

In this embodiment, the second sealing member is provided, so that when the safety valve structure is butted with an external valve body structure, the butt joint is convenient and the leakage is not easy to generate.

Optionally, one side of the plugging head departing from the output port extends out of a limiting part to one side of the plugging rod, the limiting part is matched with the plugging rod to form a limiting groove, and the end part of the elastic part is embedded in the limiting groove.

In this embodiment, the setting of spacing groove can lead the elastic component to effectively guide the deformation process of elastic component, overall structure's reliability is higher so.

The utility model also provides a food preparation machine, food preparation machine includes the host computer, the host computer be provided with steam generation system and as above-mentioned arbitrary embodiment the relief valve structure, wherein, steam generation system with relief valve structure's input port intercommunication.

Optionally, the food processor further comprises a processing cup assembly, the processing cup assembly comprises a cup body and a valve body device installed on the cup body, the processing cup assembly is detachably arranged on the host, and the valve body device contacts the valve core when the processing cup assembly is installed on the host, so that the valve core opens the output port and blocks the pressure relief port, and the input port and the output port are communicated through the valve cavity.

Optionally, the valve body arrangement comprises:

a housing in which a conveying channel is formed and which has a first end and a second end, an

The core component is connected with the shell and comprises a valve member, a lip part with elastic deformation capacity is formed on the periphery of the valve member, and the lip part is in interference fit with the inner wall surface of the conveying channel to form extrusion sealing in a natural state;

in the conveying direction from the first end to the second end, the fluid in the conveying channel can drive the lip part to deform and separate from the inner wall surface of the conveying channel, so that the conveying channel is communicated, and in the conveying direction from the second end to the first end, the fluid can drive the lip part to be tightly attached to the inner wall surface of the conveying channel, so that the conveying channel is closed

Optionally, the lip portion is formed at an end portion of the valve member and is close to the second end of the housing, wherein an end surface of the valve member at the end having the lip portion is lower than an end surface of the delivery passage at the second end.

Optionally, the steam generating system comprises a water tank, a water pump and a steam generator, the water pump connects the water tank and the steam generator, and a steam outlet of the steam generator communicates with the input port in the safety valve structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a food processor according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a safety valve structure according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view of the safety valve structure of FIG. 1

FIG. 4 is a schematic perspective view of a valve seat in the relief valve configuration of FIG. 1;

FIG. 5 is a cross-sectional structural view of the valve seat of FIG. 4;

FIG. 6 is a cross-sectional view of the valve body assembly and safety valve structure of the food processor of the present invention in an assembled state;

FIG. 7 is a schematic cross-sectional view of the valve body assembly and relief valve arrangement of FIG. 6 in a disengaged condition;

FIG. 8 is a schematic cross-sectional view of one embodiment of a processing cup assembly of the food processor of FIG. 7;

FIG. 9 is a fragmentary schematic view of the valve body assembly of FIG. 8 in a transfer passage conducting state;

FIG. 10 is a fragmentary schematic view of the valve body assembly of FIG. 8, with the valve body assembly in a delivery passage closed condition;

FIG. 11 is a schematic view of a valve body assembly of yet another embodiment mounted to a cup;

fig. 12 is a schematic view of an assembly structure of the core and the limiting member according to the first embodiment of the valve body device of the present invention;

fig. 13 is a schematic view of an assembly structure of a core and a stopper according to a second embodiment of the valve body device of the present invention;

fig. 14 is a schematic view of an assembly structure of a core and a stopper according to a third embodiment of the valve body device of the present invention;

FIG. 15 is a cross-sectional view of the core of the first embodiment of FIG. 12;

fig. 16 is a schematic perspective view of a core body according to a fourth embodiment of the valve body device of the present invention

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a food processor 500.

Referring to fig. 1 and 8, in an embodiment of the present invention, a food processor 500 includes a main frame 400 and a processing cup assembly 200 mounted on the main frame 400. The processing cup assembly 200 is detachably disposed on the main frame 400, in an embodiment, the main frame 400 includes a housing and a driving motor 410 disposed in the housing, the processing cup assembly 200 includes a cup 210 and a stirring member 220 rotatably mounted on the cup 210, wherein the stirring member 220 may be a stirring knife or a grinder, after the processing cup assembly 200 is mounted on the main frame 400, the driving motor 410 and the stirring member 220 may be in transmission connection through a coupler, and the driving motor 410 can drive the stirring member 220 to rotate in the cup 210. The food processor 500 shown in the drawings of the present application may be a product such as a wall breaking machine, a soymilk machine, a blender, etc., in other embodiments, the food processor 500 may also be a product such as a steamer, etc., it is understood that when the food processor 500 is a steamer, the driving motor 410 is not required to be disposed in the main body 400, and the stirring member 220 is not required to be disposed in the processing cup assembly 200. The food processor 500 of the present application may also perform a cooking process using high-temperature steam, and has a specific structure, a delivery port 211 is arranged on the cup body 210 or the pot body of the steamer, and a steam generating system is arranged on the main machine 400, furthermore, the food processor 500 of the application also arranges the valve body device 100 on the processing cup assembly 200, the safety valve structure 300 is disposed on the main body 400, the steam generating system includes a water tank 420, a water pump, a steam generator 430, the water pump is connected to the water tank 420 and the steam generator 430 through a pipe, a steam outlet of the steam generator 430 is connected to the safety valve structure 300 through a pipe, when the processing cup assembly 200 is placed on the main body 400, the safety valve structure 300 is docked with the valve body assembly 100, so that the high-temperature steam generated by the steam generating system can be delivered into the stirring chamber 212 in the cup body 210 through the paths of the safety valve structure 300, the valve body device 100 and the delivery port 211.

Further, because after processing, when removing processing cup subassembly 200, valve body device 100 and safety valve structure 300 separation, steam generator 430 will still produce partly high-temperature steam because thermal inertia this moment, this application sets up the unable open mode of valve body structure this moment on the one hand, so can avoid high-temperature steam directly towards the user, avoid the user to be scalded by high-temperature steam, on the other hand, this application still carries out further optimal design to safety valve structure 300, can avoid steam generation system's pipeline to lead to the pressure in the pipeline too big because the produced steam of thermal inertia, lead to the inside unsafe factor that the structural damage brought of appearing of main engine 400 of food processor 500, thereby further make food processor 500's security performance promote greatly.

In order to achieve the above object, the present application also proposes a new relief valve structure 300, and referring to fig. 2 to 5, in an embodiment of the relief valve structure 300, the relief valve structure 300 includes a valve body housing 310, a valve core 320, and an elastic member 330. A valve cavity 310a is formed in the valve body shell 310, an input port 310b, an output port 310c and a pressure relief port 310d which are communicated with the valve cavity 310a are further formed in the valve body shell 310, the valve core 320 is positioned in the valve cavity 310a and movably connected with the valve body shell 310, and the elastic piece 330 is connected between the valve core 320 and the valve body shell 310; in a natural state, the elastic member 330 drives the valve core 320 to block the output port 310c so as to enable the input port 310b and the pressure relief port 310d to be communicated through the valve cavity 310a, please refer to fig. 1 and fig. 6 in combination, when the processing cup assembly 200 is installed in the main machine 400, part of the valve body device 100 is inserted into the safety valve structure 300, so that the valve core 320 opens the output port 310c and blocks the pressure relief port 310d so as to enable the input port 310b and the output port 310c to be communicated through the valve cavity 310a under the driving of an external force.

Referring to fig. 6 and 7 in combination, a valve body device 100 according to the present application includes a housing, in which a delivery channel 111 is formed and which has a first end 110a and a second end 110b, and a core assembly 120, which is connected to the housing, the core assembly 120 includes a core 121, a lip portion 123 having an elastic deformation capability is formed on a periphery of the core 121, and in a natural state, the lip portion 123 is in interference fit with an inner wall surface of the delivery channel 111 to form a compression seal; in the conveying direction from the first end 110a to the second end 110b, the fluid in the conveying channel 111 can drive the lip portion 123 to deform and separate from the inner wall surface of the conveying channel 111, so that the conveying channel 111 is conducted, and in the conveying direction from the second end 110b to the first end 110a, the fluid can drive the lip portion 123 to cling to the inner wall surface of the conveying channel 111, so that the conveying channel 111 is closed. Further, this application still sealing connection has mouth-piece 130 at the tip of casing, and the lower extreme of mouth-piece 130 is the form setting that the diameter diminishes, make when processing cup subassembly 200 installs on host computer 400, mouth-piece 130 can insert in the delivery outlet 310c of relief valve structure 300 comparatively smoothly, at this moment, mouth-piece 130 top supports case 320 in the relief valve structure 300, make case 320 move down to realize that relief valve structure 300 docks with valve body device 100 and switches on, thereby high temperature steam can enter into the stirring chamber 212 of cup 210 through delivery port 211, mix the culinary art with eating the material.

The technical scheme of the utility model is that the valve core 320 driven by the elastic element 330 is arranged in the safety valve structure 300, and the output port 310c is closed by the valve core 320 driven by the elastic element 330 under the natural state, so that when the processing execution part (such as the cup 210 in the wall breaking machine and the pot body in the steamer) in the food processor 500 is taken away in the use process of the safety valve structure 300 of the utility model, the output port 310c can be closed by the driving of the elastic element 330, thereby avoiding the scald of the user caused by the high-temperature steam sprayed to the user through the output port 310c in the mode of cooking food materials by high-temperature steam, and because the safety valve structure 300 of the application is taken away in the processing execution part, the input port 310b is communicated with the pressure relief port 310d, therefore, the steam generated by the thermal inertia heating of the heating element of the food processor 500 can be effectively discharged from the pressure relief port 310d without causing the overlarge pressure in the pipeline in, cause the potential safety hazard, and through the utility model discloses a relief valve structure 300 can also realize because simple structure, the lower advantage of cost.

Further, in the safety valve structure 300 of the present application, the pressure relief port 310d may be connected to the water tank 420 through a pipe, so as to prevent sufficient recovery of water vapor during the pressure relief process, and of course, in other embodiments, the pressure relief port 310d may also be connected to the outside.

Referring to fig. 2 to 5 again, in an embodiment, the valve core 320 includes a blocking head 322 and a blocking rod 321, the blocking head 322 is connected to one end of the blocking rod 321, one end of the elastic member 330 abuts against the blocking head 322, the other end abuts against the valve body housing 310, the valve body housing 310 forms a separation barrel 3112 with an opening facing the output port 310c in the valve cavity 310a, the pressure relief port 310d is communicated with the separation barrel 3112, and the other end of the blocking rod 321 is inserted into and matched with the separation barrel 3112 to open or block the opening of the separation barrel 3112. The separating barrel 3112 of the present embodiment is disposed opposite to or in line with the opening of the output port 310c, so that when the processing cup assembly 200 is mounted on the main body 400, the output port 310c can be opened and the pressure relief port 310d can be closed by the linear motion of the mouthpiece, and such a design is simple and reliable for the valve core 320 in the safety valve structure 300.

In one embodiment, the valve body housing 310 includes a valve seat 311 and a valve cover 312 detachably connected, the valve seat 311 and the valve cover 312 cooperate to define a valve cavity 310a, the output port 310c is disposed on the valve cover 312, the valve seat 311 includes a seat body 3111 and a separating barrel 3112 connected to the inner side of the seat body 3111, a flow guide channel 3113 is formed between the inner wall of the seat body 3111 and the outer wall of the separating barrel 3112, and the input port 310b is opened in the seat body 3111 and is communicated with the flow guide channel 3113. This embodiment is through setting up valve body shell 310 into detachable valve seat 311 and valve gap 312 two parts, and input port 310b sets up on the seat body 3111 of valve seat 311, so overall layout is reasonable, and valve seat 311 and valve gap 312 detachable connection form make whole assembling process more convenient among the relief valve structure 300, furthermore, for the installation of whole relief valve structure 300 of convenience, this application still has connecting portion 3114 at the outer wall connection of seat body 3111, wherein, the mounting hole can have been seted up on connecting portion 3114, thereby can carry out the integral erection dismantlement with relief valve structure 300 through the screw, bolted connection spare.

In an embodiment, the safety valve structure 300 further includes a first sealing element 340, the first sealing element 340 is disposed in the valve cavity 310a and fixedly connected to the valve seat 311, the first sealing element 340 is provided with a first through hole 340a and a second through hole 340b, the first through hole 340a is correspondingly communicated with the separating barrel 3112, the second through hole 340b is correspondingly communicated with the flow guide channel 3113, and the blocking rod 321 can be in sealing fit with an inner wall of the first through hole 340a when extending into the separating barrel 3112, in this embodiment, the blocking rod 321 of the valve core 320 is more firm in the process of closing the pressure relief hole through the arrangement of the first sealing element 340, and the sealing performance is better.

In one embodiment, the edge of the first sealing member 340 is clamped and fixed by the valve seat 311 and the valve cover 312. The first sealing member 340 of the present embodiment achieves sealing engagement with the blocking rod 321 and also achieves sealing between the valve cover 312 and the valve seat 311, which can further simplify the structure of the safety valve structure 300.

In an embodiment, the safety valve structure 300 further includes a second sealing member 350, the second sealing member 350 is detachably connected to the valve body housing 310, the second sealing member 350 defines a third through hole correspondingly communicating with the output port 310c, and the blocking head 322 contacts and cooperates with an inner wall of the third through hole when blocking the output port 310 c. In this embodiment, the second sealing element 350 may be made of a silicone material, and the second sealing element 350 is disposed so that when the safety valve structure 300 is abutted to the mouthpiece of the valve body device 100, a tight sealing fit can be formed, and leakage is not easily generated.

In an embodiment, a side of the plugging head 322 facing away from the output port 310c extends out of a limiting portion 323 to a side of the plugging rod 321, the limiting portion 323 and the plugging rod 321 cooperate to form a limiting groove 324, and an end of the elastic member 330 is embedded in the limiting groove 324. In this embodiment, the elastic element 330 may be, for example, a spring, an elastic sheet, and the like, and the elastic element 330 may be guided by the arrangement of the limiting groove 324, so as to effectively guide the deformation process of the elastic element 330, and thus, the reliability of the valve element 320 when resetting is higher. Thereby preventing the leakage of high-temperature steam when the processing cup assembly 200 is removed.

In the above, it is described in detail that the safety valve structure 300 can effectively perform pressure relief during the use of the food processor 500, so as to avoid the situation that the pressure in the safety valve structure 300 is too high due to thermal inertia in the main body 400, which causes structural damage. Further, this application still carries out further optimal design to the structure of valve body device 100 for saying that high temperature steam carries to the cup 210 in back, in eating material course of working, the fluid is eaten the material and is difficult for flowing backwards to valve body device 100 inside, avoids when not using for a long time, because the edible material that gets into in valve body device 100 appears rotten, and when eating the material next time, rotten edible material enters into the cup 210 along with high temperature steam's effect, causes the contaminated problem of edible material in the stirring chamber 212.

For this purpose, referring to fig. 8 to 11 in combination, in combination with the above, the valve body assembly 100 of the present application may be installed at the bottom of the cup body 210, wherein the shell 110 may be detachably and fixedly connected with the structure of the cup body 210 through a threaded connection, and a sealing ring may be further disposed between the shell 110 and the inner wall of the cup body 210 to prevent a leakage at the connection position of the valve body assembly 100. The first end 110a of the housing 110 is disposed below, and the second end 110b is disposed above, so that the direction from the bottom to the top of the first end 110a toward the second end 110b is the direction of fluid delivery into the cup 210, and the direction from the top to the bottom of the second end 110b toward the first end 110a is the direction of delivery from the cup 210 to the valve body device 100, so that the valve body device 100 of the present application can be turned on in the direction of fluid delivery from the fluid to the cup 210, and the direction of food material delivery from the cup 210 to the valve body device 100 is turned off.

The utility model discloses technical scheme seals conveying channel 111 through the core 121 that sets up lip portion 123 that has the elastic deformation ability in valve body device 100, and lip portion 123 sets to can be washed away by the fluid in a direction and make conveying channel 111 switch on, and then fluidic impact can't make conveying channel 111 switch on in another direction, therefore, in food processing machine 500 food preparation process, can set to, conveying channel 111 switches on under the condition of filling the fluid in to cup 210 only, and eat the material and beat the orientation that the in-process edible material flows in valve body device 100 and can't switch on, so can avoid eating material and beat in-process refluence edible material to valve body device 100 in, and lead to eating the material rotten because the lapse of time, thereby influence food processing machine 500's the safe problem of food manufacturing.

In an embodiment, in order to avoid the situation that the lip portion 123 is pressed and deformed due to the impact of the food material during the rotation process during the food material stirring process, so that the lip portion 123 on the core body 121 is opened in the radial direction of the conveying channel 111, and the food material enters the interior of the valve body device 100, the lip portion 123 is formed at the end portion of the core body 121 and close to the second end 110b of the housing 110, wherein the end surface of one end of the core body 121 with the lip portion 123 is lower than the end surface of the conveying channel 111 at the second end 110 b. The core body 121 can be made of, for example, a silica gel material, so that the core body has better deformation and recovery capability, and the end surface of the core body 121 with the lip portion 123 is lower than the second end 110b, so that the situation that the food material leaks into the conveying channel 111 due to the fact that the lip portion 123 is extruded and deformed by external force in the process that the food material is swept across the surface of the second end 110b of the valve body device 100 can be effectively avoided. Referring to fig. 10 again, in order to ensure that the height difference between the end surface of the core 121 having the lip portion 123 and the end surface of the second end 110b of the housing 110 is defined as h, in the above description, the lip portion 123 is not easily impacted by the food material fluid, and a better effect of pressing the lip portion 123 on the inner wall surface of the conveying channel 111 from top to bottom is achieved, and a value range of the h may be greater than 0 and less than or equal to 2 mm.

Referring to fig. 10 again, in an embodiment, the conveying channel 111 is formed with a flared section 1112 at a position facing the second end 110b, a caliber of the flared section 1112 increases in a direction from the first end 110a to the second end 110b, and the lip portion 123 abuts against an inner wall surface of the flared section 1112. This application transfer passage 111 forms at flaring portion 1112 and forms the funnel shape that from top to bottom bore reduces, then in eating material course of working, eat the material because gravity factor produces decurrent pressure to core 121, can oppress lip portion 123 and also tightly paste in the internal wall face of flaring portion 1112 when making it produce the deformation, because the bore of flaring portion 1112 is dwindled down more, then lip portion 123 is when being pushed down, can not open transfer passage 111, seal structure is comparatively reliable like this. In order to realize the above process in the present embodiment, the aperture of the port of the flared section 1112 towards the second end 110b is defined as D1, the outer diameter of the lip portion 123 is defined as D2, and the aperture of the port of the flared section 1112 away from the second end 110b is defined as D3, wherein D1 > D2 > D3. Through the above numerical settings, the food material in the cup body 210 can be effectively prevented from flowing into the conveying channel 111. It will be appreciated that where the core 121 of the present application forms an interference fit with the transfer passage 111, it is also possible for the flared section 1112 to be of straight tubular construction and to be sized, for example, as D3.

As can be understood from the above description, in the present application, the deformable lip portion 123 is provided in the core body 121 to adhere to the inner wall surface of the conveying passage 111 for sealing, and the deformation of the lip portion 123 separates the lip portion 123 from the inner wall surface of the conveying passage 111 for opening the conveying passage 111. For this reason, the present application has also designed the following means in order to ensure the deformability of the lip portion 123.

Referring to fig. 12, in one form, the lip portion 123 has a reduced thickness in a direction extending from a middle portion of the flared section 1112 to an inner wall surface of the flared section 1112. In the solution shown in fig. 12, the cross section of the lip portion 123 is triangular, so that the edge of the lip portion 123 can be attached to and detached from the inner wall surface of the conveying passage 111 well, and the reaction is sensitive.

Referring to fig. 13, in one structure, an annular step 1231 is formed on the lip portion 123, and the annular step 1231 ensures that the lip portion 123 has better deformability.

Referring to fig. 14, in one structure, the lip portion 123 is shaped like a plate with a uniform thickness from the middle of the flared section 1112 to the direction of the extension direction of the inner wall surface of the flared section 1112. The structure is simple, the manufacture is convenient, and the deformation capability is better.

Referring to fig. 16, in the case that the lip portion 123 has any of the above structures, the lip portion 123 may further have at least one groove structure 1232 formed thereon to reduce a local thickness of the lip portion 123. This provides for greater ability to deform lip portion 123, wherein the opening of groove arrangement 1232 should be disposed on the surface of lip portion 123 facing away from stir chamber 212212.

In any of the above embodiments of the lip portion 123, in order to make the lip portion 123 have both deformability and good sealing performance after multiple deformation, the edge thickness of the lip portion 123 ranges from 0.1 mm to 1 mm. In fig. 12 to 14, the edge thickness dimension of the lip portion 123 is defined as W, and the value range of W is 0.1 mm to 1 mm, in the above description, the lip portion 123 may be set to have a non-uniform thickness at each position, and the thickness dimension W at the thinnest edge position should be 0.1 mm to 1 mm, because the situation of structural fracture is easy to occur in the case that the wall thickness at the edge position of the lip portion 123 is too thin, and the situation that the wall thickness at the edge position of the lip portion 123 is too thick is easy to occur, and the deformation capability is poor, so that the fitting effect is reduced, so that the sealing performance is reduced.

Further, in order to facilitate the assembly of the valve body device 100, the present application further performs the following structural design, referring to fig. 9, fig. 10 and fig. 15, in an embodiment, the core 121 includes a main body portion 122, the main body portion 122 is disc-shaped, a lip portion 123 surrounds an edge of the main body portion 122, a mounting section 1111 connected to the flared section 1112 is formed in a portion of the delivery passage 111 in the housing 110, and the main body portion 122 is accommodated in the mounting section 1111. The core assembly 120 further includes a limiting member 124 connected to the core 121, the housing 110 is provided with an installation portion 112 extending toward the inside of the conveying channel 111, the installation portion 112 is provided with a via hole 113 communicating with the conveying channel 111, and the limiting member 124 is connected to the installation portion 112 to stop the core 121 in a separation direction from the first end 110a toward the second end 110 b. In the present embodiment, the main body 122 of the core body 121 is further provided with a counter bore 1221, the cross section of the limiting member 124 connected to the main body 122 of the core body 121 is a T-shaped structure, and the limiting member 124 passes through the counter bore 1221 and then is connected to the mounting portion 112.

In the solution shown in fig. 9 and 10, the limiting member 124 includes a first limiting member 125 and a second limiting member 126, the first limiting member 125 passes through the countersunk hole 1221, and the second limiting member 126 connects the mounting portion 112 and the first limiting member 125 to relatively fix the core 121 to the housing 110, where the second limiting member 126 may be, for example, a screw, an end portion of the first limiting member 125 facing the second limiting member 126 may be provided with a screw hole, and the mounting portion 112 is provided with a mounting hole, and the screw passes through the mounting hole and then is locked with the screw hole on the first limiting member 125, so that the core 121 is detachably fixed to the housing 110.

It can be understood that, in the solutions shown in fig. 9 and 10, the first limiting member 125 and the core body 121 may be integrated into a single structure, for example, by two-shot injection molding, in addition to the solution of detachably connecting the first limiting member 125 and the core body 121 through the counter-sunk hole 1221 in the drawings.

In some embodiments, in order to mount the core 121 on the housing 110, a solution without a stopper may also be adopted, for example, in the solution shown in fig. 11, the present application is detachably connected to the mounting portion 112 directly through a structure on the core 121, wherein the core 121 has a connector 1222 extending downward from an end of the main body 122 away from the lip portion 123, the connector 1222 is integrally formed with the main body 122, and may be formed by injection molding, the connector 1222 may also function as the stopper 124 in the above description, except that, structurally, a barb is formed on the connector 1222, and the connector 1222 passes through the mounting hole of the mounting portion 112 in a snap-fit manner and then snaps onto the mounting portion 112 through the barb.

Further, the above details describe a scheme that the core body 121 is in interference fit limit abutting against the conveying channel 111 to close the conveying channel 111 in a direction from the second end 110b to the first end 110a, in order to make the closing process more reliable, in any assembling scheme of the core body 121, an elastic member may also be disposed between the limiting member 124 and the mounting portion 112 under a condition that the limiting member 124 is movably connected with the mounting portion 112, and the elastic member provides an elastic force to drive the limiting member 124 to drive the core body 121 to have a tendency of moving from the second end 110b to the first end 110 a. The elastic member may be, for example, a spring, or a spring structure, and the elastic member provides an auxiliary pre-tightening force for the lip portion 123 to be tightly attached to the inner wall surface of the conveying channel 111, so that the lip portion 123 is more difficult to open in the top-down direction.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (12)

1. A safety valve structure for a food processor, the safety valve structure comprising:

the valve comprises a valve body shell, a valve cavity is formed in the valve body shell, and an input port, an output port and a pressure relief port which are communicated with the valve cavity are formed in the valve body shell;

the valve core is positioned in the valve cavity and movably connected with the valve body shell; and

the elastic piece is connected between the valve core and the valve body shell;

under the natural state, the elastic piece drives the valve core to block the output port so as to enable the input port and the pressure relief port to be communicated through the valve cavity, and under the driving of external force, the valve core opens the output port and blocks the pressure relief port so as to enable the input port and the output port to be communicated through the valve cavity.

2. The safety valve structure according to claim 1, wherein the valve core includes a blocking head and a blocking rod, the blocking head is connected to one end of the blocking rod, one end of the elastic member abuts against the blocking head, the other end abuts against the valve body housing, the valve body housing is formed with a partition cylinder having an opening facing the output port in the valve chamber, the pressure relief port communicates with the partition cylinder, and the other end of the blocking rod is in insertion fit with the partition cylinder to open or block the opening of the partition cylinder.

3. The safety valve structure according to claim 2, wherein the valve body housing includes a valve seat and a valve cover detachably connected, the valve seat and the valve cover cooperating to define the valve chamber, the outlet port is provided in the valve cover, the valve seat includes a seat body and the partition cylinder connected to an inner side of the seat body, a pilot passage is formed between an inner wall of the seat body and an outer wall of the partition cylinder, and the inlet port is opened in the seat body and communicates with the pilot passage.

4. The safety valve structure of claim 3, further comprising a first sealing member disposed in the valve chamber and fixedly connected to the valve seat, wherein the first sealing member defines a first through hole and a second through hole, the first through hole is correspondingly communicated with the partition cylinder, the second through hole is correspondingly communicated with the diversion channel, and the plugging rod can be in sealing engagement with an inner wall of the first through hole when extending into the partition cylinder.

5. The safety valve structure of claim 4, wherein the edge of the first seal is clamped and fixed by the valve seat and the valve cover.

6. The safety valve structure of claim 2, further comprising a second sealing member detachably connected to the valve body housing, wherein the second sealing member has a third through hole correspondingly communicating with the outlet, and the blocking head is in contact with and engaged with an inner wall of the third through hole when blocking the outlet.

7. The safety valve structure according to claim 2, wherein a stopper portion extends from a side of the plug head facing away from the outlet port to a side of the plug rod, the stopper portion cooperates with the plug rod to form a stopper groove, and an end of the elastic member is fitted in the stopper groove.

8. A food processor, characterized in that the food processor comprises a main machine provided with a steam generating system and a safety valve arrangement according to any one of claims 1 to 7, wherein the steam generating system communicates with an inlet opening of the safety valve arrangement.

9. The food processor of claim 8, further comprising a processing cup assembly including a cup body and a valve body assembly mounted to the cup body, the processing cup assembly being detachably mounted to the main body, the valve body assembly contacting the valve core when the processing cup assembly is mounted to the main body such that the valve core opens the output port and blocks the pressure relief port to allow communication between the input port and the output port through the valve cavity.

10. The food processor of claim 9, wherein the valve body means comprises:

a housing in which a conveying channel is formed and which has a first end and a second end, an

The core assembly is connected with the shell and comprises a core, a lip part with elastic deformation capacity is formed on the periphery of the core, and the lip part is in interference fit with the inner wall surface of the conveying channel to form extrusion sealing in a natural state;

in the conveying direction from the first end to the second end, the fluid in the conveying channel can drive the lip part to deform and separate from the inner wall surface of the conveying channel, so that the conveying channel is conducted, and in the conveying direction from the second end to the first end, the fluid can drive the lip part to be tightly attached to the inner wall surface of the conveying channel, so that the conveying channel is closed.

11. The food processor of claim 10, wherein the lip portion is formed at an end of the valve core proximate the second end of the housing, and wherein an end surface of the core at the end having the lip portion is lower than an end surface of the feed channel at the second end.

12. The food processor of claim 8, wherein the steam generating system includes a water tank, a water pump, and a steam generator, the water pump connecting the water tank and the steam generator, a steam outlet of the steam generator communicating with the input port in the safety valve arrangement.

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