A safe food processor

Abstract

The present invention relates to a kitchen cooking appliance, in particular to a safe food processing machine, comprising a cup body and a cover body sealed with the cup body, the cup body and the cover body enclose a pulping cavity, a pulverizing device driven by a motor is arranged in the pulping cavity, and further comprising: a micro switch for controlling the power on and off of the motor; a pusher, when the cover body is closed, for triggering the micro switch to power on the motor, and when the cover body is opened, for releasing the micro switch to power off the motor; a linkage member, having a first position and a second position, when the cover body is closed, the pusher synchronously drives the linkage member to move from the first position to the second position; a reset member, when the cover body is opened, the micro switch is powered off, and the reset member resets the linkage member from the second position to the first position. The food processing machine of the present invention, when the cover is closed, realizes that the pusher triggers the micro switch to power on, and synchronously drives the linkage member to move, thereby increasing the linkage function; when the cover is opened, the linkage member will not affect the power off of the micro switch.

Description

Technical Field

[0001] The invention relates to a kitchen cooking appliance, in particular to a safe food processor. Background Art

[0002] In order to ensure the safety of cooking, the existing electric pressure cooker is provided with a pressure relief valve and a safety valve device. During the cooking process, when the pressure in the pot reaches the working pressure, the pressure relief valve opens, and the high-pressure steam in the pot body can be discharged, so that the pressure in the pot is kept within a certain working pressure range, so as to achieve the purpose of cooking. The pressure relief valve is a limit-type pressure relief valve. When the pressure relief valve is blocked or the pressure in the pot rises sharply and the pressure relief valve cannot quickly release the pressure in the pot to the working pressure, the safety valve opens. The safety valve has the function of ensuring the safety of the pressure cooker and preventing explosion, and is a safety-type pressure relief valve. At the same time, the applicant has previously applied for a patent number of CN201110102249.X, and the invention name is a micro-pressure self-ripening soybean milk machine and its micro-pressure pulping process. The patent specification discloses that a control valve is arranged on the lead-out pipe to control the opening and closing of the connecting hole, so as to realize the adjustable pressure of the crushing and cooking device, and a safety valve is also installed on the crushing and cooking device. When the pressure in the inner cavity of the crushing and cooking device reaches a certain pressure value, the safety valve will be opened by the pressure to realize the pressure relief by connecting with the outside atmosphere. However, whether it is the pressure relief combination of the limiting 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 that can realize automatic pressure regulation on the micro-pressure soymilk maker, they are all independent pressure relief safety devices. Therefore, this inevitably leads to the problem that the pressure relief structure of the pressure cooking appliance is complicated, there are many parts, it is difficult to assemble, and the manufacturing cost is high.

[0003] At the same time, the applicant applied for an invention patent application (CN201911119229.6) in 2019, which disclosed that the pressure relief valve and the safety valve are combined to achieve a more compact and reliable structure. However, this technical solution also has the problem that when the safety valve assembly falls off, the micro switch is stuck by the blocking member, causing the pulverizing device to continue to rotate when the cover is opened, which poses a safety hazard. Summary of the invention

[0004] The purpose of the present invention is to provide a food processing machine, which can realize that when the cover is closed, a push member triggers a micro switch to connect the motor electrically, and the push member can synchronously drive the linkage member to move, thereby increasing the linkage function. Moreover, when the cover is opened, the linkage member will not affect the micro switch to cut off the power to the motor.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a safe food processing machine, comprising a cup body and a cover body sealed with the cup body, the cup body and the cover body enclose a pulping cavity, a pulverizing device driven by a motor is arranged in the pulping cavity, characterized in that: the food processing machine also includes:

[0006] Micro switch, used to control the power on and off of the motor;

[0007] The pusher is used to trigger the micro switch to energize the motor when the cover is closed, and to release the micro switch to de-energize the motor when the cover is opened;

[0008] The linkage member has a first position and a second position. When the cover body is closed, the push member synchronously drives the linkage member to move from the first position to the second position;

[0009] The reset member is used for resetting the linkage member from the second position to the first position when the cover is opened, the micro switch is powered off, and the reset member resets the linkage member from the second position to the first position.

[0010] Furthermore, the pulping chamber is a closed pressure chamber, the linkage part is a blocking part, a mounting hole is provided on the peripheral wall of the cup body, and is located on the outside of the cup body. A safety valve is sealed and installed at the mounting hole, and the safety valve is used to relieve the pressure of the gas in the pressure chamber; when the cover body is closed, the pushing part drives the blocking part to move from a first blocking position to a second avoidance position, and the blocking part does not prevent the safety valve from detaching from the mounting hole; when the cover body is opened, the resetting part pushes the blocking part to move from the second avoidance position to the first blocking position, and the blocking part prevents the safety valve from detaching from the mounting hole.

[0011] Furthermore, when the cover body is in a closed state and the pressure in the pressure chamber exceeds a preset safety threshold, the safety valve disengages from the mounting hole, and the blocking member is locked in the second position by the safety valve, and the reset member cannot be reset; the cover body is opened, the push member releases the micro switch, and the motor is powered off.

[0012] Furthermore, a fixed bracket is provided on the outside of the mounting hole, and the safety valve includes a valve core with a front end inserted into the mounting hole and a sealing ring sleeved on the outside of the valve core, the rear end of the valve core is supported by the fixed bracket, and the sealing ring is used to seal the gap between the mounting hole and the valve core.

[0013] Further, the valve core includes a mounting tube having a pressure relief channel and passing through both ends, a pressure relief valve core installed in the pressure relief channel and sealing the front end hole of the mounting tube, a guide component fixed at the rear end hole of the mounting tube, and a second return spring with one end pressed against the guide component and the other end pressed against the pressure relief valve core, the mounting tube is installed in the mounting hole, and a pressure relief hole is provided on the peripheral wall of the mounting tube to connect the pressure relief channel with the external atmosphere;

[0014] Alternatively, the reset member is a first reset spring installed at the rear end of the blocking member;

[0015] Alternatively, a slide groove is provided on the fixed bracket, and the blocking member is in the shape of a plate, and the blocking member is inserted into the slide groove and slides in the slide groove;

[0016] Alternatively, the micro switch and the blocking member are both mounted on a fixed bracket.

[0017] Furthermore, a locking hole is provided on the cover body, and the linkage member is a locking member that can be inserted into the locking hole. When the cover body is closed, the pushing member pushes the locking member to move from the first position to the second position to lock the cover body; when the cover body is opened, the reset member pushes the locking member to move from the second position to the first position to unlock the cover body.

[0018] Alternatively, the food processor includes a body, the cup body is mounted on the body, and the pushing member is a push rod arranged on the cover body, the body is provided with a matching hole through which the push rod can pass, and the micro switch and linkage member are arranged on the body and located below the matching hole.

[0019] Furthermore, a connecting hole connected to the pulping chamber is provided on the peripheral wall of the cup body, and the linkage part is a connecting tube that can be inserted into the connecting hole. When the cover body is closed, the pushing part pushes the connecting tube from the first position to the second position to connect the connecting tube with the pulping chamber; when the cover body is opened, the resetting part pushes the connecting tube from the second position to the first position to separate the connecting tube from the pulping chamber.

[0020] Furthermore, the rear end of the connecting pipe is connected to a supply device to supply the medium into the pulping chamber;

[0021] Alternatively, a sealing member is installed in the communicating hole, the communicating pipe is sealed with the communicating hole through the sealing member, and a communicating slit is provided on the front end surface of the sealing member.

[0022] Furthermore, a trigger member is provided on the cover body. When the cover body is closed, the trigger member drives the push member to trigger the micro switch, and the motor is powered on; when the cover body is opened, the trigger member moves away from the push member, the push member releases the micro switch, and the motor is powered off.

[0023] Furthermore, the trigger member is a first magnetic body arranged on the cover body, and a second magnetic body magnetically matched with the first magnetic body is installed on the push member. 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 push member to move to trigger the micro switch to be powered on; when the cover body is opened, the first magnetic body moves away from the second magnetic body, and the micro switch is restored to be powered off;

[0024] Alternatively, the food processing machine further comprises a machine body, the cup body is mounted on the machine body, and the pusher, micro switch, linkage member and reset member are all arranged on the machine body;

[0025] Alternatively, the food processor further comprises a fixed bracket, which is fixed to the outer wall of the cup body, and the pusher, micro switch, linkage member and reset member are all mounted on the fixed bracket.

[0026] After adopting the above technical solution, since the food processing machine has a pusher, when the cover is closed, the pusher can push the micro switch, triggering the micro switch to power on the motor. Moreover, when the pusher triggers the micro switch, the pusher also synchronously drives the linkage member to move, so that the linkage member moves from the first position to the second position. The role of the pusher is correspondingly enhanced, and the food processing machine has more linkage functions. At the same time, when the cover is opened, the linkage member can reset the linkage member from the second position to the first position under the action of the reset member, and at the same time, the pusher releases the micro switch, so that the micro switch cuts off the power to the motor, preventing the personal safety hazard caused by the continued rotation of the open cover crushing device. Moreover, even if the linkage member is abnormal and the reset member cannot be reset, it will not affect the power-off action of the micro switch in the open state, which greatly improves the safety performance of the food processing machine.

[0027] In particular, when the pulping chamber is a closed pressure chamber and the linkage member is a blocking member, since a safety valve capable of releasing pressure is installed at the mounting hole on the cup body of the food processing machine, when the blocking member is closed on the cover body, the blocking member moves from the first blocking position to the second avoiding position under the pushing action of the push member. At this time, the blocking member avoids the safety valve and cannot prevent the safety valve from detaching from the mounting hole. When the pressure in the pressure chamber exceeds the preset safety threshold, the safety valve will detach from the mounting hole and lock the blocking member in the second position, and the reset member cannot reset the blocking member. If the user opens the cover body, the push member can still release the micro switch, so that the micro switch cuts off the power to the motor, thereby preventing the personal safety hazard caused by the rotation of the motor. On the contrary, if the pressure in the pressure chamber does not exceed the preset safety threshold, the safety valve will not detach from the mounting hole, the blocking member will not be locked, the user opens the cover body, the reset member resets the blocking member, and returns from the second avoiding position to the first blocking position, blocking the mounting valve from detaching, and at the same time, the push member also releases the micro switch, so that the micro switch cuts off the power to the motor. In this way, when the cover is opened, the problem of the safety valve being separated from the mounting hole due to being pressed by human error is effectively solved, and the problem of personal safety hazards caused by the motor being powered on and rotating in the cover open state is also solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0030] Figure 2 for Figure 1 An enlarged schematic diagram of the blocking member at position A in the middle is in the first position;

[0031] Figure 3 for Figure 1 An enlarged schematic diagram of the blocking member at position A in the middle is in the second position;

[0032] Figure 4 for Figure 1 Schematic diagram of the installation structure of micro switch, pusher, blocking member, safety valve, etc.

[0033] Figure 5 It is a partial schematic diagram of the safety valve installation structure of the second embodiment of the present invention;

[0034] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the safety valve. DETAILED DESCRIPTION

[0035] Embodiment 1:

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The figure is a schematic diagram of the structure of the first embodiment of the present invention. A food processing machine comprises a machine body 1, a cup body 2 installed in the machine body 1 and a cover body 3 sealed with the cup body 2, wherein the cup body 2 and the cover body 3 enclose a pulping cavity 10, wherein the pulping cavity 10 is a closed pressure cavity, and a motor (not shown) is arranged at the bottom of the pressure cavity, a driving shaft 41 driven by the motor passes through the bottom of the cup body 2 and extends into the cup body 2, and a crushing device 5 for crushing materials is arranged in the pressure cavity, and the crushing device 5 is installed at the end of the driving shaft 41, and the food processing machine also comprises:

[0037] The mounting hole 20 is provided through the peripheral wall of the cup body 2;

[0038] The fixing bracket 11 is located in the machine body 1 and fixed on the cup body 2 and located outside the mounting hole 20;

[0039] The safety valve 6 is arranged on the outside of the cup body 2 and is sealed and installed at the installation hole 20, and is used to release the pressure of the gas in the pulping cavity 10;

[0040] The safety valve 6 includes a valve core 61 whose front end is inserted into the mounting hole 20 and a sealing ring 62 which is sleeved on the outside of the valve core 61 . The rear end of the valve core 61 is supported by the fixing bracket 11 , and the sealing ring 62 is used to seal the gap between the mounting hole 20 and the valve core 61 .

[0041] Among them, at the rear end of the valve core 61, a slide groove 111 is provided on the fixed bracket 11, and a linkage member 8 is installed in the slide groove 111. The linkage member 8 is a plate-shaped blocking member, and the blocking member is inserted in the slide groove 111 and slides in the slide groove 111. The blocking member has a first position that blocks the valve core 61 from being separated from the mounting hole 20, and the blocking member has a second position that prevents the valve core 61 from being separated from the mounting hole 20. In addition, a reset member 9 is also provided at the rear end of the blocking member. The reset member 9 is a first reset spring, wherein the upper end of the reset member 9 is pressed against the blocking member, and the lower end is pressed against the lower end of the slide groove 111 of the fixed bracket 11.

[0042] In this embodiment, a trigger member 31 is provided on the cover body 3, and the trigger member 31 is a first magnetic body. A second magnetic body 12 that is magnetically repelled from the first magnetic body is provided in the body 1, and the second magnetic body 12 is installed in a mounting groove (not marked in the figure) at the top of a push member 7, and corresponds to the first magnetic body. The push member 7 has a receiving cavity 70 for accommodating the valve core 61 when the valve core 61 is disengaged, and a convex portion 81 protruding outward is provided on the blocking member, and the push member 7 has a holding portion 71 pressed on the convex portion 81, and a touch-pressing portion 72 is also provided at the lower portion of the push member 7, and the touch-pressing portion 72 is connected to the micro switch 13, wherein the micro switch 13 is also fixed on the fixed bracket 11. When the cover body 3 is closed on the cup body 2, the first magnetic body produces a repulsive force on the second magnetic body 12, driving the pusher 7 to move downward, and the contact and pressure part 72 on the pusher 7 contacts the micro switch 13 to activate the motor. At the same time, the pressing part 71 on the pusher 7 presses on the protrusion 81 and pushes the blocking member to move downward, and the blocking member moves from the first blocking position to the second avoiding position.

[0043] During the pulping process, when the pressure in the pressure chamber exceeds the preset safety threshold, the food processor enters an abnormal state, the valve core 61 of the safety valve 6 is detached from the mounting hole 20, and the rear end of the valve core 61 enters the accommodating chamber 70 of the pusher 7. At the same time, the valve core 61 locks the blocking member in the second position, and the reset member 9 cannot reset the blocking member. At this time, when the cover 3 is opened, the first magnetic body is away from the second magnetic body 12, and the second magnetic body 12 is not affected by the repulsive force. The pusher 7 moves upward under the rebound force of the micro switch 13, and the corresponding pusher 7 releases the micro switch 13 to cut off the power to the motor, and the crushing device cannot rotate. During the pulping process, when the pressure in the pressure chamber does not exceed the preset safety threshold, the food processor is always in a normal state, and the valve core 61 is always located at the mounting hole 20 and does not detach, thereby not causing locking of the blocking member. At this time, when the cover body 3 is opened, the first magnetic body is away from the second magnetic body 12, and the second magnetic body 12 is not affected by the repulsive force. The pusher 7 moves upward under the action of the rebound force of the microswitch 13, and the corresponding pusher 7 releases the microswitch 13 to cut off the power to the motor, and the crushing device cannot rotate. In addition, the pressing portion 71 of the pusher 7 no longer presses the convex portion 81 on the blocking member, and the reset member 9 pushes the blocking member upward under the action of the elastic force, and the blocking member moves from the avoidance second position to the first position of the blocking valve core 61.

[0044] For this embodiment, when the food processor is in a normal state, opening the cover can not only cut off the power of the motor and stop the grinding device from rotating, thus reducing the potential safety hazard, but also can achieve the blocking member to block the valve core, thus preventing the valve core from falling off due to human error in pressing the valve core when the cover is opened. When the food processor is in an abnormal state, opening the cover, the micro switch can still cut off the power of the motor, thus eliminating the potential safety hazard, and the blocking member will not have any effect on the power off of the micro switch.

[0045] It should be noted that, in this embodiment, in addition to triggering the micro switch to be energized, the pusher also has a linkage function to assist in pushing the blocking member to move, thereby improving the linkage function of the food processor, making the structure of the food processor more compact and reliable, and further reducing the number of components. Of course, for this embodiment, the magnetic matching method of the first magnetic body and the second magnetic body is not limited to the scheme disclosed in this embodiment, and can also be magnetic attraction. In this case, the installation structure of the pusher, the blocking member, the reset member and the micro switch also needs to be changed accordingly. In addition, for this embodiment, the pusher can also be a push rod set on the cover body, and a corresponding matching hole needs to be set on the machine body. When the cover body is closed, the pusher is inserted into the matching hole to trigger the micro switch and the blocking member below the matching hole in a linkage manner. At this time, the first magnetic body and the second magnetic body do not need to be set on the cover body and the machine body, so that the structure is simpler and the manufacturing cost is lower.

[0046] It should also be noted that, for the present embodiment, the pulping chamber may not be a pressure chamber, and the linkage member driven by the pusher may not be limited to the blocking member used to prevent the valve core from disengaging in the present embodiment, and may also have structures with other functions. For example: a locking hole is provided on the cover body, and the linkage member is a locking member that can be inserted into the locking hole. When the cover body is closed, the pusher pushes the locking member to move from the first position to the second position to lock the cover body; and when the cover body is opened, the pusher releases the microswitch to cut off the power, and at the same time, the reset member pushes the locking member from the second position to the first position to unlock the cover body. At this time, the pusher has the function of locking the cover body in linkage with the cover body, and at the same time, it does not affect the problem that the microswitch normally cuts off the power to the motor when the cover is opened.

[0047] For example: a connecting hole connected to the pulping cavity is provided on the peripheral wall of the cup body, and the linkage part is a connecting tube that can be inserted into the connecting hole. When the cover body is closed, the pusher pushes the connecting tube from the first position to the second position to connect the connecting tube with the pulping cavity; when the cover body is opened, the pusher releases the micro switch to cut off the power, and the reset part pushes the connecting tube from the second position to the first position to separate the connecting tube from the pulping cavity. In this structure, the rear end of the connecting tube can be connected to a supply device, and through the supply device and the connecting tube, water, air, and steam can be introduced into the pulping chamber, and even the pressure in the pulping cavity can be discharged to the outside of the atmosphere through the connecting tube. If the supply device is a water tank, a sealing member can also be installed in the connecting hole, and the connecting tube is sealed with the connecting hole through the sealing member, and a connecting seam is provided on the front end surface of the sealing member, so that when the connecting tube is inserted into the connecting hole, the connecting seam is opened, and when the connecting tube is separated from the connecting hole, the connecting seam can be automatically closed to prevent the connecting hole from being difficult to clean due to slag entering. It should be noted that, for a food processing machine that utilizes a pusher to connect and separate the connecting pipe and the pulping chamber, even the cup body and the machine body may be designed to be a detachable structure.

[0048] Of course, the use of a pusher to realize the power-on of a micro switch and the linkage function of a linkage member is not limited to the solution disclosed in the present invention, and any solution based on the principle of the present invention should fall within the protection scope of the present invention. At the same time, the above technical solution and variant solutions disclosed in this embodiment can also be applied to other embodiments of the present invention.

[0049] Embodiment 2:

[0050] like Figure 5 , Figure 6FIG. 1 is a schematic diagram of the structure of a second embodiment of the present invention. The present embodiment is different from the first embodiment in that: in the present embodiment, the valve core includes a mounting tube 611 having a pressure relief channel 610 and passing through both ends, a pressure relief valve core 612 installed in the pressure relief channel 610 and sealing the front end hole of the mounting tube 611, a guide component 613 fixed at the rear end hole of the mounting tube 611, and a second return spring 614 with one end pressed against the guide component 613 and the other end pressed against the pressure relief valve core 612. The mounting tube 611 is inserted into the mounting hole, and a pressure relief hole 615 for connecting the pressure relief channel 610 with the external atmosphere is provided on the peripheral wall of the mounting tube 611. In the present 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. The pressure relief valve core body 6121 and the plugging head 6122 are two independent components. The plugging head 6122 is a silicone component and is pressed against the front end hole of the mounting tube 611.

[0051] For this embodiment, when the cover is closed, when the pressure in the pressure chamber exceeds the preset pressure relief threshold, the steam in the cup body pushes the pressure relief valve core to compress the second reset spring, the front end hole of the mounting tube opens, and the pressure relief channel connects the pressure chamber to the external atmosphere, so that the pressure chamber can achieve normal pressure relief. When the pressure in the pressure chamber exceeds the preset safety threshold (greater than the preset pressure relief threshold), the pressure relief valve core opens, which is not enough to reduce the pressure in the pressure chamber in a short time. At this time, the pressure relief valve core, the second reset spring and the guide component connected to the inside of the mounting tube fall off from the mounting hole together, that is, the valve core falls off from the mounting hole, and the mounting hole connects the pressure chamber to the atmosphere, so as to achieve rapid pressure relief of the pressure chamber. Similar to the first embodiment, when the valve core is detached from the mounting hole, the valve core enters the accommodating cavity of the pusher and locks the blocking member in the second position. When the cover is opened, the pusher can still release the micro switch, and the micro switch is powered off, but the reset member cannot reset the blocking member.

[0052] It should be noted that the safety valve in this embodiment has the function of both a pressure relief valve and a safety valve. This embodiment integrates the pressure relief valve and the safety valve into one. This makes the structure more compact and simplified. At the same time, this embodiment also has the same beneficial effects as the first embodiment, which will not be described in detail here. It should be noted that the structure and changes of this embodiment can also be applied to other embodiments of the present invention.

[0053] It should also be noted that the food processor of the present invention can be either a frame-type soymilk machine or a wall-breaking machine with a motor mounted below. In addition, a heating device can be directly installed on the cup body of the food processor of the present invention, or the food processor has a steam heating device for heating the slurry in the cup body.

[0054] Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A safe food processor, comprising a cup body and a cover body sealed with the cup body, wherein the cup body and the cover body enclose a pulping cavity, wherein a pulverizing device driven by a motor is arranged in the pulping cavity, characterized in that: The food processor also includes: Micro switch, used to control the power on and off of the motor; The pusher is used to trigger the micro switch to energize the motor when the cover is closed, and to release the micro switch to de-energize the motor when the cover is opened; The linkage member has a first position and a second position. When the cover body is closed, the push member synchronously drives the linkage member to move from the first position to the second position; A reset member, when the cover is opened, the microswitch is powered off, and the reset member resets the linkage member from the second position to the first position; wherein, the pulping chamber is a closed pressure chamber, and the linkage member is a blocking member. A mounting hole is provided on the peripheral wall of the cup body, which is located on the outside of the cup body, and a safety valve is sealed and installed at the mounting hole, and the safety valve is used to relieve the pressure of the gas in the pressure chamber; when the cover is closed, the pushing member drives the blocking member to move from the first blocking position to the second avoidance position, and the blocking member does not prevent the safety valve from detaching from the mounting hole; when the cover is opened, the reset member pushes the blocking member to move from the second avoidance position to the first blocking position, and the blocking member prevents the safety valve from detaching from the mounting hole.

2. The safe food processing machine according to claim 1, characterized in that: When the cover body is in the closed state and the pressure in the pressure chamber exceeds the preset safety threshold, the safety valve disengages from the mounting hole, and the blocking member is locked in the second position by the safety valve, and the reset member cannot be reset; the cover body is opened, the push member releases the micro switch, and the motor is powered off.

3. The safe food processing machine according to claim 1, characterized in that: A fixed bracket is arranged on the outside of the mounting hole, and the safety valve comprises a valve core with a front end inserted into the mounting hole and a sealing ring sleeved on the outside of the valve core, the rear end of the valve core is supported by the fixed bracket, and the sealing ring is used to seal the gap between the mounting hole and the valve core.

4. The safe food processing machine according to claim 3, characterized in that: The valve core comprises a mounting cylinder having a pressure relief channel and penetrating at both ends, a pressure relief valve core installed in the pressure relief channel and sealing the front end hole of the mounting cylinder, a guide component fixed at the rear end hole of the mounting cylinder, and a second return spring with one end pressed against the guide component and the other end pressed against the pressure relief valve core. The mounting cylinder is inserted into the mounting hole, and a pressure relief hole is provided on the peripheral wall of the mounting cylinder to connect the pressure relief channel with the external atmosphere. Alternatively, the reset member is a first reset spring installed at the rear end of the blocking member; Alternatively, a slide groove is provided on the fixed bracket, and the blocking member is in the shape of a plate, and the blocking member is inserted into the slide groove and slides in the slide groove; Alternatively, the micro switch and the blocking member are both mounted on a fixed bracket.

5. The safe food processing machine according to claim 1, characterized in that: The food processor comprises a machine body, the cup body is mounted on the machine body, and the pusher is a push rod arranged on the cover body. The machine body is provided with a matching hole through which the push rod can pass. The micro switch and the linkage member are arranged on the machine body and are located below the matching hole.

6. The safe food processing machine according to claim 1, characterized in that: The cover body is provided with a trigger member, and when the cover body is closed, the trigger member drives the push member to trigger the micro switch, and the motor is powered on; when the cover body is opened, the trigger member moves away from the push member, the push member releases the micro switch, and the motor is powered off.

7. The safe food processing machine according to claim 6, characterized in that: The trigger member is a first magnetic body arranged on the cover body, and a second magnetic body magnetically matched with the first magnetic body is installed on the push member. 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 push member to move to trigger the micro switch to be powered on; when the cover body is opened, the first magnetic body moves away from the second magnetic body, and the micro switch is restored to be powered off; Alternatively, the food processing machine further comprises a machine body, the cup body is mounted on the machine body, and the pusher, micro switch, linkage member and reset member are all arranged on the machine body; Alternatively, the food processor further comprises a fixed bracket, which is fixed to the outer wall of the cup body, and the pusher, micro switch, linkage member and reset member are all mounted on the fixed bracket.

8. A safe food processor, comprising a cup body and a cover body sealed with the cup body, wherein the cup body and the cover body are combined to form a pulping cavity, wherein a pulverizing device driven by a motor is arranged in the pulping cavity, characterized in that: The food processor also includes: Micro switch, used to control the on and off of the motor; The pusher is used to trigger the micro switch to energize the motor when the cover is closed, and to release the micro switch to de-energize the motor when the cover is opened; The linkage member has a first position and a second position. When the cover body is closed, the push member synchronously drives the linkage member to move from the first position to the second position; A reset member, when the cover is opened, the micro switch is powered off, and the reset member resets the linkage member from the second position to the first position; wherein, a locking hole is provided on the cover, and the linkage member is a locking member that can be inserted into the locking hole, and when the cover is closed, the pushing member pushes the locking member from the first position to the second position to lock the cover; when the cover is opened, the reset member pushes the locking member from the second position to the first position to unlock the cover.

9. The safe food processing machine according to claim 8, characterized in that: The food processor comprises a machine body, the cup body is mounted on the machine body, and the pusher is a push rod arranged on the cover body. The machine body is provided with a matching hole through which the push rod can pass. The micro switch and the linkage member are arranged on the machine body and are located below the matching hole.

10. The safe food processing machine according to claim 8, characterized in that: The cover body is provided with a trigger member, and when the cover body is closed, the trigger member drives the push member to trigger the micro switch, and the motor is powered on; when the cover body is opened, the trigger member moves away from the push member, the push member releases the micro switch, and the motor is powered off.

11. The safe food processing machine according to claim 10, characterized in that: The trigger member is a first magnetic body arranged on the cover body, and a second magnetic body magnetically matched with the first magnetic body is installed on the push member. 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 push member to move to trigger the micro switch to be powered on; when the cover body is opened, the first magnetic body moves away from the second magnetic body, and the micro switch is restored to be powered off; Alternatively, the food processing machine further comprises a machine body, the cup body is mounted on the machine body, and the pusher, micro switch, linkage member and reset member are all arranged on the machine body; Alternatively, the food processor further comprises a fixed bracket, which is fixed to the outer wall of the cup body, and the pusher, micro switch, linkage member and reset member are all mounted on the fixed bracket.

12. A safe food processor, comprising a cup body and a cover body sealed with the cup body, wherein the cup body and the cover body are combined to form a pulping cavity, wherein a pulverizing device driven by a motor is arranged in the pulping cavity, characterized in that: The food processor also includes: Micro switch, used to control the on and off of the motor; The pusher is used to trigger the micro switch to energize the motor when the cover is closed, and to release the micro switch to de-energize the motor when the cover is opened; The linkage member has a first position and a second position. When the cover body is closed, the push member synchronously drives the linkage member to move from the first position to the second position; A reset member, when the cover is opened, the microswitch is powered off, and the reset member resets the linkage member from the second position to the first position; wherein a connecting hole connected to the pulping chamber is provided on the peripheral wall of the cup body, and the linkage member is a connecting tube that can be inserted into the connecting hole, and when the cover is closed, the pushing member pushes the connecting tube from the first position to the second position to connect the connecting tube with the pulping chamber; when the cover is opened, the reset member pushes the connecting tube from the second position to the first position to separate the connecting tube from the pulping chamber.

13. The safe food processing machine according to claim 12, characterized in that: The rear end of the connecting pipe is connected with a supply device to supply the medium into the pulping chamber; Alternatively, a sealing member is installed in the communicating hole, the communicating pipe is sealed with the communicating hole through the sealing member, and a communicating slit is provided on the front end surface of the sealing member.

14. The safe food processing machine according to claim 12, characterized in that: The food processor comprises a machine body, the cup body is mounted on the machine body, and the pusher is a push rod arranged on the cover body. The machine body is provided with a matching hole through which the push rod can pass. The micro switch and the linkage member are arranged on the machine body and are located below the matching hole.

15. The safe food processing machine according to claim 12, characterized in that: The cover body is provided with a trigger member, and when the cover body is closed, the trigger member drives the push member to trigger the micro switch, and the motor is powered on; when the cover body is opened, the trigger member moves away from the push member, the push member releases the micro switch, and the motor is powered off.

16. The safe food processing machine according to claim 15, characterized in that: The trigger member is a first magnetic body arranged on the cover body, and a second magnetic body magnetically matched with the first magnetic body is installed on the push member. 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 push member to move to trigger the micro switch to be powered on; when the cover body is opened, the first magnetic body moves away from the second magnetic body, and the micro switch is restored to be powered off; Alternatively, the food processing machine further comprises a machine body, the cup body is mounted on the machine body, and the pusher, micro switch, linkage member and reset member are all arranged on the machine body; Alternatively, the food processor further comprises a fixed bracket, which is fixed to the outer wall of the cup body, and the pusher, micro switch, linkage member and reset member are all mounted on the fixed bracket.

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