CN213850253U - Safe food processor - Google Patents

Abstract

The utility model relates to a kitchen cooking appliances, especially a safe food preparation machine, including the cup and with the sealed complex lid of cup, the cup encloses with the lid and closes formation slurrying cavity, still includes: the strong electric component is used for performing pulping operation on the pulping cavity; the microswitch is used for controlling the on-off of the strong current component; the pushing piece is used for triggering the micro switch to be electrified when the cover body is covered, and is used for releasing the micro switch to be powered off when the cover body is uncovered; the linkage piece is provided with a first position and a second position, and when the cover body is covered, the pushing piece synchronously drives the linkage piece to move from the first position to the second position; when the cover body is opened, the microswitch is powered off, and the linkage piece is reset to the first position from the second position by the resetting piece. The utility model realizes that the pushing piece triggers the micro switch to be electrified and the linkage piece is synchronously linked to move when the cover is closed, thereby increasing the linkage function; when the cover is opened, the linkage piece can not influence the power failure of the microswitch.

Description

Safe food processor

Technical Field

The utility model relates to a kitchen cooking appliance, especially a safe food preparation machine.

Background

In order to ensure the cooking safety, the pressure cooker of the prior electric pressure cooker is provided with a pressure release valve and a safety valve device, wherein in the cooking process, when the pressure in the cooker reaches the working pressure, the pressure release valve is opened, high-pressure steam in the cooker body can be discharged, so that the pressure in the cooker is kept in a certain working pressure range to achieve the purpose of cooking, and the pressure release valve is a limit type pressure release valve. When the pressure relief valve is blocked or the pressure in the cooker rises sharply and the pressure relief valve can not quickly relieve the pressure in the cooker to working pressure, the safety valve is opened, the safety valve has the effect of ensuring that the pressure cooker is safe and does not explode, and the safety type pressure relief valve is adopted. Meanwhile, the applicant applies for a patent number CN201110102249.X before this, the name of the utility model is micropressure self-curing soybean milk machine and micropressure pulping process thereof, this patent specification discloses set up the opening and closing of control valve control intercommunicating pore on the stand-off pipe, realize that crushing ager pressure is adjustable to and still install the relief valve on crushing ager, when the inner chamber pressure of crushing ager reached certain pressure value, the relief valve can be washed open by pressure and realize the pressure release of communicating with external atmosphere. However, the pressure relief combination of the limit type pressure relief valve and the safety valve of the electric pressure cooker or the pressure relief combination of the control valve and the safety valve which are arranged on the micro-pressure soybean milk machine and can realize automatic pressure regulation are mutually independent pressure relief safety devices, so that the problems of complicated pressure relief structure, more parts, high assembly difficulty and high manufacturing cost of the pressure cooking appliance are inevitably caused.

Meanwhile, the applicant filed an invention patent application (CN201911119229.6) in 2019, which discloses that the structure is more compact and reliable by combining the relief valve and the safety valve together. However, in the technical scheme, when the safety valve assembly falls off, the microswitch is blocked by the blocking piece, so that the problem that the crushing device still continuously rotates in an uncapping state is caused, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reach the purpose just provide a food preparation machine, can realize that the impeller triggers micro-gap switch with forceful electric power components and parts electricity intercommunication when closing the lid, and the impeller can drive the motion of linkage piece in step, increases the linkage function, moreover, when uncapping, the linkage piece can not lead to the fact the influence to micro-gap switch outage forceful electric power components and parts.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a safe food preparation machine, includes the cup and with the sealed complex lid of cup, the cup encloses with the lid and closes formation slurrying cavity, its characterized in that: the food processor further comprises:

the strong electric component is used for performing pulping operation on the pulping cavity;

the micro switch is electrically connected with the strong current component and used for controlling the on-off of the strong current component;

the pushing piece is used for triggering the micro switch to be electrified when the cover body is covered, and is used for releasing the micro switch to be powered off when the cover body is uncovered;

the pushing piece synchronously drives the linkage piece to move from the first position to the second position when the cover body is covered;

the reset piece is used for powering off the microswitch when the cover body is opened, and the reset piece resets the linkage piece from the second position to the first position.

Furthermore, the pulping cavity is a closed pressure cavity, the linkage part is a blocking part, a mounting hole is formed in the peripheral wall of the cup body and is positioned on the outer side of the cup body, a safety valve is hermetically mounted at the mounting hole and used for relieving pressure of gas in the pressure cavity; when the cover body is covered, the pushing piece drives the blocking piece to move from the blocked first position to the avoided second position, and the blocking piece does not block the safety valve from being separated from the mounting hole; when the cover body is opened, the reset piece pushes the blocking piece to move from the avoiding second position to the blocking first position, and the blocking piece blocks the safety valve from being separated from the mounting hole.

Further, when the cover body is in a covering state and the pressure in the pressure cavity exceeds a preset safety threshold value, the safety valve is separated from the mounting hole, the blocking piece is locked at a second position by the safety valve, and the resetting piece cannot reset; when the cover body is opened, the pushing piece releases the microswitch to cut off the power supply.

Furthermore, a fixing support is arranged on the outer side of the mounting hole, the safety valve comprises a valve core and a sealing ring, the front end of the valve core penetrates through the mounting hole, the sealing ring is sleeved on the outer side of the valve core, the rear end of the valve core is supported by the fixing support, and the sealing ring is used for sealing a gap between the mounting hole and the valve core.

Furthermore, the valve core comprises an installation cylinder with a pressure relief channel and two through ends, a pressure relief valve core arranged in the pressure relief channel and sealing a front end hole of the installation cylinder, a guide part fixed at the rear end hole of the installation cylinder and a second return spring with one end abutting against the guide part and the other end abutting against the pressure relief valve core, the installation cylinder is arranged in the installation hole in a penetrating way, and the peripheral wall of the installation cylinder is provided with a pressure relief hole for communicating the pressure relief channel with the external atmosphere;

or the reset piece is a first reset spring arranged at the rear end of the blocking piece;

or, the fixed bracket is provided with a sliding groove, the blocking piece is in a plate shape, and the blocking piece is inserted into the sliding groove and slides in the sliding groove;

or the microswitch and the blocking piece are both arranged on the fixed bracket.

Furthermore, a locking hole is formed in the cover body, the linkage piece is a locking piece which can be inserted into the locking hole, and when the cover body is covered, the pushing piece pushes the locking piece to move from the first position to the second position to lock the cover body; when the cover body is opened, the reset piece pushes the locking piece to move from the second position to the first position to unlock the cover body;

or the food processor comprises a machine body, the cup body is arranged on the machine body, the pushing piece is a push rod arranged on the cover body, a matching hole into which the push rod can be inserted is formed in the machine body, and the microswitch and the linkage piece are arranged on the machine body and are positioned below the matching hole;

or the strong electric component is a heating pipe arranged on the cup body;

or the strong electric component is a steam generating device for steam heating of the pulping cavity.

Furthermore, a communicating hole communicated with the pulping cavity is formed in the peripheral wall of the cup body, the linkage piece is a communicating pipe capable of being inserted into the communicating hole, and when the cover body is covered, the pushing piece pushes the communicating pipe to move from the first position to the second position so as to communicate the communicating pipe with the pulping cavity; when the cover body is opened, the reset piece pushes the communicating pipe to move from the second position to the first position so as to separate the communicating pipe from the pulping cavity.

Further, the rear end of the communicating pipe is connected with a supply device to supply media into the pulping chamber;

or a sealing element is arranged in the communicating hole, the communicating pipe is in sealing fit with the communicating hole through the sealing element, and a communicating seam is formed in the front end face of the sealing element.

Furthermore, a trigger piece is arranged on the cover body, and when the cover body is closed, the trigger piece drives the pushing piece to trigger the microswitch to be electrified; when the cover body is opened, the trigger piece is far away from the pushing piece, and the pushing piece releases the microswitch to power off.

Furthermore, the trigger piece is a first magnetic body arranged on the cover body, a second magnetic body magnetically matched with the first magnetic body is arranged on the pushing piece, and when the cover body is closed, the first magnetic body drives the second magnetic body to move, so that the second magnetic body drives the pushing piece to move to the trigger microswitch to be electrified; when the cover body is opened, the first magnetic body is far away from the second magnetic body, and the micro switch is recovered to be powered off;

or the food processor also comprises a machine body, the cup body is arranged on the machine body, and the pushing piece, the microswitch, the linkage piece and the reset piece are all arranged on the machine body;

or the food processor also comprises a fixed support, the fixed support is fixed on the outer wall of the cup body, and the pushing piece, the microswitch, the linkage piece and the reset piece are all arranged on the fixed support.

After the technical scheme is adopted, the food processing machine is provided with the pushing piece, when the cover body is covered, the pushing piece can push the micro switch to trigger the micro switch to act, so that the strong current component is electrified, and the pulping operation of the pulping cavity is realized. And when the pushing piece triggers the micro switch to act, the pushing piece also synchronously drives the linkage piece to move, so that the linkage piece moves from the first position to the second position. Correspondingly, the function of the pushing piece is improved, and the food processor has more linkage functions. Simultaneously, when the lid was uncapped, the linkage piece can reset the linkage piece to the primary importance by the second place under the effect that resets, and meanwhile, the impeller releases micro-gap switch, realizes that micro-gap switch cuts off the power supply to forceful electric power components and parts, prevents to uncap the state under, the personal potential safety hazard that forceful electric power components and parts work caused. Moreover, even if the linkage piece is abnormal, the reset piece cannot reset, the power-off action of the microswitch in the uncovering state is not influenced, and the safety performance of the food processor is greatly improved.

Especially when the pulping cavity is a closed pressure cavity, when the linkage part is a blocking part, because the safety valve capable of releasing pressure is installed at the mounting hole on the cup body of the food processing machine, when the blocking part is covered on the cover body, the blocking part moves from the blocked first position to the avoided second position under the pushing action of the pushing part, at the moment, the blocking part avoids the safety valve, the safety valve cannot be blocked to be separated from the mounting hole, when the pressure in the pressure cavity exceeds a preset safety threshold value, the safety valve can be separated from the mounting hole, the blocking part is locked at the second position, and the resetting part cannot reset the blocking part. If the user opens the cover body, the pushing piece can still release the micro switch, the micro switch can cut off the power of the strong current component (motor), and the personal safety hidden danger caused by the work (motor rotation) of the strong current component is prevented. On the contrary, if pressure in the pressure chamber all the time when all the time not exceeding preset safety threshold, the relief valve also can not break away from mounting hole all the time, stops that to receive the locking, and the user opens the lid, and the piece that resets stops to stopping the primary importance, stops the installation valve and breaks away from to return to the first place that blocks by the second place of dodging, and simultaneously, the impeller also releases micro-gap switch, realizes the micro-gap switch outage moreover. Therefore, under the state of opening the cover, the problem that the safety valve is separated from the mounting hole due to manual misoperation during pressing is effectively solved, and the problem of personal safety hazards caused by electrifying work of strong-current components under the state of opening the cover is also solved.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic view of the whole structure of the food processor of the present invention;

FIG. 2 is a schematic view of a first position of the blocking member according to a first embodiment;

FIG. 3 is a schematic view of a second position of the blocking member according to a first embodiment;

FIG. 4 is a schematic view of an installation structure of the micro-switch, the pushing member, the blocking member, the safety valve, etc. in the first embodiment;

fig. 5 is a partial schematic view of a safety valve mounting structure according to a second embodiment of the present invention;

fig. 6 is an exploded view of the safety valve of fig. 5.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the first embodiment of the present invention is schematically illustrated. The utility model provides a food processor, includes organism 1, install cup 2 in organism 1 and with the sealed complex lid 3 of cup 2, cup 2 encloses with lid 3 and closes and form slurrying cavity 10, wherein, this slurrying cavity 10 is airtight pressure cavity, and the bottom of pressure cavity is provided with motor (not drawn in the picture), runs through the cup 2 bottom and stretches into in the cup 2 by motor drive's drive shaft 41, and is provided with the reducing mechanism 5 that is used for smashing the material in the pressure cavity, and reducing mechanism 5 installs in the end of drive shaft 41, food processor still includes:

a mounting hole 20 penetratingly provided in a peripheral wall of the cup body 2;

the fixed bracket 11 is positioned in the machine body 1, fixed on the cup body 2 and positioned outside the mounting hole 20;

the safety valve 6 is arranged on the outer side of the cup body 2, is hermetically arranged at the mounting hole 20 and is used for relieving the pressure of the gas in the pressure cavity 10;

the safety valve 6 comprises a valve core 61 with the front end penetrating into the mounting hole 20 and a sealing ring 62 sleeved outside the valve core 61, the rear end of the valve core 61 is supported by the fixing support 11, and the sealing ring 62 is used for sealing a gap between the mounting hole 20 and the valve core 61.

The fixed support 11 is provided with a sliding groove 111 at the rear end of the valve core 61, a linkage member 8 is installed in the sliding groove 111, the linkage member 8 is a plate-shaped blocking member, and the blocking member is inserted into the sliding groove 111 and slides in the sliding groove 111. The blocking member has a first position blocking the spool 61 from being disengaged from the mounting hole 20, and a second position preventing the spool 61 from being disengaged from the mounting hole 20. And, the rear end that is located and blockked still is provided with piece 9 that resets, piece 9 resets is a reset spring, and wherein, the upper end of piece 9 that resets supports tightly on blockking, and the lower extreme supports tightly in the lower extreme of spout 111 of fixed bolster 11.

In this embodiment, the cover 3 is provided with a trigger 31, the trigger 31 is a first magnetic body, the housing 1 is provided with a second magnetic body 12 magnetically repulsive to the first magnetic body, and the second magnetic body 12 is mounted in a mounting groove (not labeled in the figure) at the top end of a pushing member 7 and corresponds to the first magnetic body. The pushing member 7 is provided with an accommodating cavity 70 for accommodating the valve core 61 when the valve core 61 is disengaged, a convex part 81 protruding outwards is arranged on the blocking member, the pushing member 7 is provided with a pressing part 71 pressed on the convex part 81, the lower part of the pushing member 7 is also provided with a pressing part 72, the pressing part 72 is connected with the microswitch 13, and the microswitch 13 is also fixed on the fixed bracket 11. When the cover body 3 is covered on the cup body 2, the first magnetic body generates a repulsive force effect on the second magnetic body 12 to drive the pushing member 7 to move downwards, the pressing part 72 on the pushing member 7 presses the microswitch 13 to act to electrify the motor, meanwhile, the pressing part 71 on the pushing member 7 presses the convex part 81 and pushes the blocking member to move downwards, and the blocking member moves from the blocked first position to the avoided second position.

In the pulping process, when the pressure in the pressure cavity exceeds a preset safety threshold value, the food processor enters an abnormal state, the valve core 61 of the safety valve 6 is separated from the mounting hole 20, the rear end of the valve core 61 enters the accommodating cavity 70 of the pushing piece 7, meanwhile, the valve core 61 locks the blocking piece at the second position, and the resetting piece 9 cannot reset the blocking piece. At this time, when the cover 3 is opened, the first magnetic body is far away from the second magnetic body 12, the second magnetic body 12 is not acted by a repulsive force, the pushing member 7 moves upwards under the action of the repulsive force of the microswitch 13, the corresponding pushing member 7 releases the microswitch 13 to cut off the power of the motor, and the crushing device cannot rotate. In the pulping process, when the pressure in the pressure cavity does not exceed the preset safety threshold all the time, the food processing machine is always in a normal state, the valve core 61 is always positioned in the mounting hole 20 and is not separated, so that the blocking piece cannot be locked, at the moment, when the cover body 3 is opened, the first magnetic body is far away from the second magnetic body 12, the second magnetic body 12 is not acted by a repulsive force, the pushing piece 7 moves upwards under the action of the repulsive force of the microswitch 13, the corresponding pushing piece 7 releases the microswitch 13 to power off the motor, the crushing device cannot rotate, in addition, the pressing part 71 of the pushing piece 7 does not press the convex part 81 on the blocking piece any more, the resetting piece 9 pushes the blocking piece upwards under the action of the repulsive force, and the blocking piece moves from the avoided second position to the first position for blocking the valve core 61.

To this embodiment, when food preparation machine was in normal condition, opened the lid, both can realized the motor outage, and reducing device does not rotate, reduces the appearance of personal safety hidden danger, can realize again that the piece stops the case, prevents to uncap under the state, and the problem that the case drops is caused to the people maloperation presses the case. When the food processor is in an abnormal state, the cover body is opened, the micro switch can still cut off the power of the motor, the personal safety hidden danger cannot exist, and the blocking piece cannot cause any influence on the power-off of the micro switch.

It should be noted that, in this embodiment, the pushing element has a linkage function in addition to triggering the micro switch to be powered on, and assists in pushing the blocking element to move, so that the linkage function of the food processor is improved, the structure of the food processor is more compact and reliable, and the number of components is further reduced. Of course, for the present embodiment, the magnetic matching manner of the first magnetic body and the second magnetic body is not limited to the scheme disclosed in the present embodiment, and may also be magnetic attraction, and in this case, the mounting structures of the pushing member, the blocking member, the resetting member and the microswitch also need to be changed accordingly. Moreover, for the embodiment, the pushing element may also be a push rod disposed on the cover, and the body needs to be provided with a corresponding mating hole, when the cover is closed, the push rod is inserted into the mating hole to perform linkage triggering on the micro switch and the blocking element below the mating hole, and at this time, the cover and the body do not need to be provided with the first magnetic body and the second magnetic body, so that the structure is simplified, and the manufacturing cost is lower.

It should be noted that, for the present embodiment, the pulping chamber may not be a pressure chamber, and the linkage member driven by the pushing member may also be a blocking member for blocking the valve core from disengaging, and may also have a structure with other functions. Such as: the cover body is provided with a locking hole, the linkage piece is a locking piece which can be inserted into the locking hole, and when the cover body is covered, the pushing piece pushes the locking piece to move from a first position to a second position to lock the cover body; and when the cover body is opened, the pushing piece releases the microswitch to power off, and meanwhile, the reset piece can push the locking piece to move from the second position to the first position to unlock the cover body. At the moment, the pushing piece has the function of linking and locking the cover body, and meanwhile, the problem that the micro switch normally cuts off the power of the motor in the uncovering state is not influenced.

Also for example: the peripheral wall of the cup body is provided with a communicating hole communicated with the pulping cavity, the linkage part is a communicating pipe which can be inserted into the communicating hole, and when the cover body is covered, the pushing part pushes the communicating pipe to move from a first position to a second position so as to communicate the communicating pipe with the pulping cavity; when the cover body is opened, the pushing piece releases the microswitch to power off, and the reset piece pushes the communicating pipe to move from the second position to the first position so as to separate the communicating pipe from the pulping cavity. In the structure, the rear end of the communicating pipe can be connected with a supply device, and through the supply device and the communicating pipe, water, air and steam can be fed into the pulping chamber, and even the pressure in the pulping chamber can be discharged outside the atmosphere through the communicating pipe. If the supply device is a water tank, a sealing element can be further arranged in the communicating hole, the communicating pipe is in sealing fit with the communicating hole through the sealing element, in addition, the communicating seam is arranged on the front end surface of the sealing element, when the communicating pipe is inserted into the communicating hole, the communicating seam is opened, and when the communicating pipe is separated from the communicating hole, the communicating seam can be automatically closed, so that the communicating hole is prevented from being difficult to clean due to slag feeding. It should be noted that, for the food processor which uses the pushing piece to realize the connection and separation of the communicating pipe and the pulping cavity, even the cup body and the machine body can be designed into a detachable structure.

In addition, it should be further noted that, for this embodiment, the strong current component electrically connected to the micro switch and controlled to be turned on or off by the micro switch is not limited to the motor of this embodiment, and may also be of other structures, for example, the strong current component is a heating pipe installed on the cup body, and the heating pipe is turned off in the state of opening the cover, so as to prevent the personal safety hazard caused by the continuous operation of the heating pipe in the state of opening the cover. Still for example, the forceful electric power components and parts are for carrying out the steam generator of steam heating to the slurrying cavity, can realize under the state of uncapping, and steam generator outage stop work prevents to uncap under the state, and steam causes the problem that the user scalded. For example, the strong current component is a water pump supplying water to the pulping cavity, and when the cover body is opened, the water pump is powered off to stop supplying water so as to avoid the problem that the water pump continuously supplies water to cause overflow when the cover body is opened. Certainly, be not limited to the scheme that this embodiment is disclosed to the forceful electric power components and parts to, equally to utilizing the impeller to realize the circular telegram of micro-gap switch and the linkage function of linkage piece, also not limited to the utility model discloses a scheme, any scheme based on the utility model discloses a principle all should belong to the utility model discloses an in the protection scope. Meanwhile, the above technical solution and the variant of the present embodiment can also be applied to other embodiments of the present invention.

Example two:

as shown in fig. 5 and 6, the structure of the second embodiment of the present invention is schematically illustrated. The difference between the present embodiment and the first embodiment is: in this embodiment, the valve core includes an installation cylinder 611 having a pressure relief channel 610 and two ends penetrating through, a pressure relief valve core 612 installed in the pressure relief channel 610 and sealing a front end hole of the installation cylinder 611, a guide part 613 fixed at the rear end hole of the installation cylinder 611, and a second return spring 614 having one end abutting against the guide part 613 and the other end abutting against the pressure relief valve core 612, the installation cylinder 611 is installed in the installation hole in a penetrating manner, and a pressure relief hole 615 for communicating the pressure relief channel 610 with the external atmosphere is disposed on a peripheral wall of the installation cylinder 611, in this embodiment, the pressure relief valve core 612 includes a pressure relief valve core body 6121 and a plugging head 6122 installed at the front end of the pressure relief valve core body 6121, and the pressure relief valve core body 6121 and the plugging head 6122 are two independent components, wherein the plugging head 6122 is a silica gel component and abuts against the front end hole of the installation cylinder 611.

For this embodiment, when the lid is closed, when the pressure in the pressure cavity exceeds the preset pressure relief threshold, the steam in the cup pushes the pressure relief valve core to compress the second return spring, the front end hole of the installation cylinder is opened, the pressure relief channel communicates the pressure cavity with the external atmosphere, and the pressure cavity can realize normal pressure relief. And when the pressure in the pressure cavity exceeds a preset safety threshold (is greater than the preset pressure relief threshold), the pressure relief valve core is opened, the pressure in the pressure cavity is not reduced enough in a short time, at the moment, the mounting cylinder is communicated with the pressure relief valve core inside, the second reset spring and the guide part to fall off from the mounting hole together, namely, the valve core falls off from the mounting hole, and the mounting hole is communicated with the pressure cavity and the atmosphere to realize the rapid pressure relief of the pressure cavity. When the valve core is disengaged from the mounting hole, the valve core enters the accommodating cavity of the pushing piece and locks the blocking piece at the second position. When the cover body is opened, the pushing piece can still release the micro switch, the micro switch is powered off, but the reset piece cannot reset the blocking piece.

It should be noted that the safety valve in the present embodiment has both the function of the relief valve and the function of the safety valve, and the relief valve and the safety valve are integrated in the present embodiment. The structure is more compact and simplified. Meanwhile, the present embodiment also has the same beneficial effects as the first embodiment, and the description thereof is omitted here. It should be noted that the structure and the variations of the present embodiment can be applied to other embodiments of the present invention.

It should be further noted that the food processor of the present invention can be a soybean milk maker with a frame structure, and can also be a wall breaking machine with a underneath type motor. Furthermore, the utility model discloses can the direct mount heating device on food preparation machine's the cup, perhaps food preparation machine has the steam heating device that heats the thick liquid in the cup.

It will be appreciated by those skilled in the art that the present invention includes, but is not limited to, those illustrated in the drawings and described in the detailed description above. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The utility model provides a safe food preparation machine, includes the cup and with the sealed complex lid of cup, the cup encloses with the lid and closes formation slurrying cavity, its characterized in that: the food processor further comprises:

the strong electric component is used for performing pulping operation on the pulping cavity;

the micro switch is electrically connected with the strong current component and used for controlling the on-off of the strong current component;

the pushing piece is used for triggering the micro switch to be electrified when the cover body is covered, and is used for releasing the micro switch to be powered off when the cover body is uncovered;

the pushing piece synchronously drives the linkage piece to move from the first position to the second position when the cover body is covered;

the reset piece is used for powering off the microswitch when the cover body is opened, and the reset piece resets the linkage piece from the second position to the first position.

2. A safe food processor as defined in claim 1, wherein: the pulping cavity is a closed pressure cavity, the linkage part is a blocking part, a mounting hole is formed in the peripheral wall of the cup body and is positioned on the outer side of the cup body, a safety valve is hermetically mounted at the mounting hole and used for relieving pressure of gas in the pressure cavity; when the cover body is covered, the pushing piece drives the blocking piece to move from the blocked first position to the avoided second position, and the blocking piece does not block the safety valve from being separated from the mounting hole; when the cover body is opened, the reset piece pushes the blocking piece to move from the avoiding second position to the blocking first position, and the blocking piece blocks the safety valve from being separated from the mounting hole.

3. A safe food processor according to claim 2, wherein: when the cover body is in a covering state and the pressure in the pressure cavity exceeds a preset safety threshold value, the safety valve is separated from the mounting hole, the blocking piece is locked at a second position by the safety valve, and the resetting piece cannot reset; when the cover body is opened, the pushing piece releases the microswitch to cut off the power supply.

4. A safe food processor according to claim 2, wherein: the safety valve comprises a valve core and a sealing ring, wherein the front end of the valve core penetrates through the mounting hole, the sealing ring is sleeved on the outer side of the valve core, the rear end of the valve core is supported by the fixing support, and the sealing ring is used for sealing a gap between the mounting hole and the valve core.

5. A safe food processor according to claim 4, wherein: the valve core comprises an installation cylinder with a pressure relief channel and two penetrating ends, a pressure relief valve core arranged in the pressure relief channel and sealing a front end hole of the installation cylinder, a guide part fixed at the rear end hole of the installation cylinder and a second reset spring with one end abutting against the guide part and the other end abutting against the pressure relief valve core, the installation cylinder penetrates through the installation hole, and the peripheral wall of the installation cylinder is provided with a pressure relief hole for communicating the pressure relief channel with the external atmosphere;

or the reset piece is a first reset spring arranged at the rear end of the blocking piece;

or, the fixed bracket is provided with a sliding groove, the blocking piece is in a plate shape, and the blocking piece is inserted into the sliding groove and slides in the sliding groove;

or the microswitch and the blocking piece are both arranged on the fixed bracket.

6. A safe food processor as defined in claim 1, wherein: the cover body is provided with a locking hole, the linkage piece is a locking piece which can be inserted into the locking hole, and when the cover body is covered, the pushing piece pushes the locking piece to move from a first position to a second position to lock the cover body; when the cover body is opened, the reset piece pushes the locking piece to move from the second position to the first position to unlock the cover body;

or the food processor comprises a machine body, the cup body is arranged on the machine body, the pushing piece is a push rod arranged on the cover body, a matching hole into which the push rod can be inserted is formed in the machine body, and the microswitch and the linkage piece are arranged on the machine body and are positioned below the matching hole;

or the strong electric component is a heating pipe arranged on the cup body;

or the strong electric component is a steam generating device for steam heating of the pulping cavity.

7. A safe food processor as defined in claim 1, wherein: the peripheral wall of the cup body is provided with a communicating hole communicated with the pulping cavity, the linkage piece is a communicating pipe capable of being inserted into the communicating hole, and when the cover body is covered, the pushing piece pushes the communicating pipe to move from a first position to a second position so as to communicate the communicating pipe with the pulping cavity; when the cover body is opened, the reset piece pushes the communicating pipe to move from the second position to the first position so as to separate the communicating pipe from the pulping cavity.

8. A safe food processor as defined in claim 7, wherein: the rear end of the communicating pipe is connected with a supply device to supply media into the pulping chamber;

or a sealing element is arranged in the communicating hole, the communicating pipe is in sealing fit with the communicating hole through the sealing element, and a communicating seam is formed in the front end face of the sealing element.

9. A safe food processor as defined in claim 1, wherein: the cover body is provided with a trigger piece, and when the cover body is closed, the trigger piece drives the pushing piece to trigger the microswitch to be electrified; when the cover body is opened, the trigger piece is far away from the pushing piece, and the pushing piece releases the microswitch to power off.

10. A safe food processor as defined in claim 9, wherein: the trigger piece is a first magnetic body arranged on the cover body, a second magnetic body magnetically matched with the first magnetic body is arranged on the pushing piece, and when the cover body is closed, the first magnetic body drives the second magnetic body to move so that the second magnetic body drives the pushing piece to move until the trigger microswitch is electrified; when the cover body is opened, the first magnetic body is far away from the second magnetic body, and the micro switch is recovered to be powered off;

or the food processor also comprises a machine body, the cup body is arranged on the machine body, and the pushing piece, the microswitch, the linkage piece and the reset piece are all arranged on the machine body;

or the food processor also comprises a fixed support, the fixed support is fixed on the outer wall of the cup body, and the pushing piece, the microswitch, the linkage piece and the reset piece are all arranged on the fixed support.

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