A food processing machine with self-cleaning discharge valve

Abstract

The present invention relates to kitchen appliances, in particular to a food processing machine with a self-cleaning drain valve, comprising a machine body with a pulping cavity, a drain valve, a supply system and a liquid receiving cup, wherein the drain valve is provided with a first input port, a second input port, a drain port and a liquid passage, wherein the drain port is located at the end of the liquid passage, and the drain port is provided above the liquid receiving cup, wherein the first input port is connected to the pulping cavity, the second input port is connected to the supply system, and the liquid passage is selectively connected to the first input port and the second input port, and when the first input port is connected to the liquid passage, the liquid in the pulping cavity is discharged into the liquid receiving cup through the first input port, the liquid passage and the drain port; and when the second input port is connected to the liquid passage, the medium in the supply system is discharged into the liquid receiving cup through the second input port, the liquid passage and the drain port. The food processing machine of the present invention can realize the automatic cleaning function of the drain valve, and effectively solve the problem of residual pulp residue and foreign matter blocking in the drain valve.

Description

Technical Field

[0001] The invention relates to kitchen appliances, in particular to a food processor with a self-cleaning drain valve. Background Art

[0002] Existing frame-type food processing machines generally include a machine body, a grinding cup installed in the machine body, a drain valve installed on the outside of the grinding cup, and a pulp receiving cup arranged below the drain pipe of the drain valve. The drain pipe is fixed to the drain valve as one piece. Since the drain pipe is hidden in the machine body and generally has a bent section, during the process of discharging pulp and waste, residues often stick to the inner wall of the drain pipe in the bent section. Even after flushing with cleaning water, the remaining adhesion is not thoroughly cleaned. If the residue cannot be cleaned for a long time, it will breed bacteria and produce odor, posing a food safety hazard.

[0003] The existing Chinese utility model patent with the patent number CN201720936700.0 and the name "A Soymilk Maker" discloses a reversing rotary valve, the valve core of which is provided with an input port connected to the water supply assembly, and the valve core can realize the water supply assembly to enter the grinding cup during the rotation process. However, the reversing rotary valve has a complex structure, the valve core is difficult to clean, and when the valve core is blocked, it is difficult for consumers to handle it. In addition, there is another Chinese utility model patent with the patent number CN202020298753.6 and the name "Valve Body Device and Food Processor", which discloses a solution in which the valve body in the valve body device can be detached and separated from the cup body assembly. After the pulping is completed, the user can manually disassemble the valve core and the valve body for cleaning. However, the structure is complex, and the disassembly and installation of the valve core and the valve body are very troublesome. The valve core and the valve body are also prone to problems such as improper installation and leakage of slurry from the drain valve. Summary of the invention

[0004] The purpose of the present invention is to provide a food processing machine with a self-cleaning drain valve. The food processing machine can automatically clean the liquid passage in the drain valve, and the cleaned waste water or gas can be directly discharged into a liquid receiving cup or the external atmosphere, effectively solving the problem of residual slurry or foreign matter clogging the drain valve.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a food processing machine with a self-cleaning drain valve, comprising a machine body with a pulping cavity, a drain valve arranged outside the pulping cavity, a supply system and a liquid receiving cup connected with the drain valve, characterized in that: the drain valve is provided with a first input port, a second input port, a drain port and a liquid flow channel, the drain port is located at the end of the liquid flow channel, and the drain port is arranged above the liquid receiving cup, the first input port is connected with the pulping cavity, the second input port is connected with the supply system, the liquid flow channel is selectively connected with the first input port and the second input port, when the first input port is connected with the liquid flow channel, the liquid in the pulping cavity is discharged into the liquid receiving cup through the first input port, the liquid flow channel and the drain port; and when the second input port is connected with the liquid flow channel, the medium in the supply system is discharged into the liquid receiving cup through the second input port, the liquid flow channel and the drain port.

[0006] Furthermore, the drain valve includes a valve seat and a valve core arranged in the valve seat, the valve core is rotatable relative to the valve seat, the first input port and the second input port are arranged through the valve seat, the liquid passage is arranged on the valve core, and a connecting port is also arranged on the valve core, the drain port passes through the valve seat and discharges liquid toward the liquid receiving cup, and the connecting port and the drain port are located at two ends of the liquid passage, the valve core is rotated to make the connecting port selectively connected with the first input port and the second input port, wherein when the connecting port is connected with the first input port, the pulping chamber is drained; and when the connecting port is connected with the second input port, the drain valve is cleaned.

[0007] Furthermore, there is one communication port.

[0008] Furthermore, the connecting port includes a first connecting port for connecting with the first input port and a second connecting port for connecting with the second input port. When the first connecting port is connected with the first input port, the second connecting port and the second input port are offset and closed, and when the second connecting port is connected with the second input port, the first connecting port and the first input port are offset and closed.

[0009] Furthermore, the drain valve also includes a drain pipe communicated with the valve core, and a drain port is formed at the end of the drain pipe.

[0010] Furthermore, the drain pipe and the valve core are integrally formed;

[0011] Alternatively, the drain pipe is sealed and connected to the valve core, and the drain pipe is driven to rotate by the valve core;

[0012] Alternatively, the liquid discharge pipe is sleeved on the outer side of the valve core and fixed on the valve seat, and the liquid discharge pipe does not rotate.

[0013] Furthermore, the valve core is also provided with an auxiliary channel which is not connected with the liquid passage, and the valve seat is provided with an output port and a third input port, the third input port is connected with an auxiliary supply system, and the output port is connected with the pulping chamber through a pipeline, and when the valve core is rotated until the two ends of the auxiliary channel are respectively connected with the third input port and the output port, the auxiliary supply system can supply the medium into the pulping chamber through the auxiliary channel.

[0014] Furthermore, a groove is provided on the outer wall of the valve core, and the auxiliary channel is formed by the groove and the inner wall of the valve seat, wherein after the valve core is rotated into place, the third input port and the output port are respectively connected to the two ends of the groove;

[0015] Alternatively, a shut-off valve is provided on the pipeline to control the on-off of the pipeline;

[0016] Alternatively, the valve core is provided with a plurality of mutually independent auxiliary channels;

[0017] Alternatively, the supply system and the auxiliary supply system are the same supply device, and the second input port and the third input port are connected to the same supply device via a three-way valve.

[0018] Furthermore, the valve seat includes a valve housing and a valve sleeve fixed in the valve housing, and the valve sleeve is wrapped around the outside of the valve core to seal the gap between the valve core and the valve housing;

[0019] Alternatively, the drain valve is provided with a detection device for detecting the position of the valve core, and the detection device comprises a magnet mounted on the valve core and a sensing element mounted on the valve seat, and the sensing element cooperates with the magnet by induction.

[0020] Furthermore, the machine body is provided with an installation cavity, and the pulping cavity is detachably installed in the installation cavity;

[0021] Alternatively, the supply system is a water supply system or a gas supply system;

[0022] Alternatively, the liquid receiving cup includes a slurry receiving cup and a waste water cup.

[0023] The liquid discharge valve of the food processing machine of the present invention has a first input port and a second input port respectively connected to the pulping cavity and the supply system, and the liquid discharge valve also has the same liquid discharge port. Since the liquid passage of the liquid discharge valve can be selectively connected to the first input port and the second input port, when the liquid passage is connected to the first input port, the slurry or waste water in the pulping cavity can be discharged to the liquid receiving cup through the first input port, the liquid passage and the liquid discharge port, so as to realize the slurry and waste discharge of the pulping cavity. At the same time, when the liquid passage is connected to the second input port, the water or gas in the supply system can impact and clean the liquid passage in the liquid discharge valve through the second input port, and the cleaned waste water or gas can be discharged to the liquid receiving cup (waste water cup) or the external atmosphere through the liquid discharge port. The self-cleaning property of the liquid discharge valve is greatly improved, and the problem of odor and bacteria breeding in the liquid discharge valve itself is effectively prevented. Moreover, when foreign matter becomes clogged in the drain valve, the supply system can also be used to perform high-pressure impact on the liquid passage to discharge the foreign matter from the drain port, greatly improving the drain valve's ability to discharge foreign matter and making the foreign matter discharge operation simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of a food processing machine according to a first embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 3 for Figure 1 Schematic diagram of the structure of the middle drain valve;

[0028] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the middle drain valve;

[0029] Figure 5 Schematic diagram of the structure of the liquid discharge valve according to the second embodiment of the present invention. DETAILED DESCRIPTION Embodiment 1:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4FIG. 2 is a schematic diagram of the structure of an embodiment of a food processing machine of the present invention. A food processing machine comprises a body 1 having a pulping cavity 10, a drain valve 2 arranged outside the pulping cavity 10, a supply system 3 and a liquid receiving cup connected to the drain valve 2, wherein the liquid receiving cup comprises a waste water cup 41 arranged on the body 1 and a pulp receiving cup 42 seated on the waste water cup 41. The drain valve 2 is provided with a first input port 21, a second input port 22, a drain port 23 and a liquid flow channel 20. The drain port 23 is located at the end of the liquid flow channel 20, and the drain port 23 is arranged above the pulp receiving cup 42. The first input port 21 is connected to the pulping chamber 10, and the second input port 22 is connected to the supply system 3. The liquid flow channel 20 is selectively connected to the first input port 21 and the second input port 22. When the first input port 21 is connected to the liquid flow channel 20, the liquid in the pulping chamber 10 is discharged to the pulp receiving cup 42 or the waste water cup 41 through the first input port 21, the liquid flow channel 20 and the drain port 23; and when the second input port 22 is connected to the liquid flow channel 20, the medium in the supply system 3 is discharged to the pulp receiving cup 42 or the waste water cup 41 through the second input port 22, the liquid flow channel 20 and the drain port 23.

[0031] In this embodiment, the drain valve 2 includes a valve seat 24 and a valve core 25 disposed in the valve seat, the valve seat 24 includes a valve shell 241 and a valve sleeve 242 fixed in the valve shell 241, the valve sleeve 242 is wrapped around the outer side of the valve core 25 to seal the gap between the valve core 25 and the valve shell 241. The valve core 25 is rotatable relative to the valve seat 24, the first input port 21 and the second input port 22 are arranged through the valve seat 24, the liquid passage 20 is arranged on the valve core 25, and a connecting port 250 connected to one end of the liquid passage 20 is also arranged on the outer wall of the valve core 25, and the drain port 23 is located at the other end of the liquid passage 20, that is, the drain port 23 is located at the end of the valve core 25, wherein the valve core 25 penetrates the valve seat 24 and discharges liquid toward the slurry receiving cup 42, and the drain valve 2 also includes a driving motor 2 6 and a valve cover plate 27 for fixing the driving motor 26, wherein the valve cover plate 27 is fixed on the valve seat 24, and the valve core 25 is driven to rotate by the driving motor 26 so that the connecting port 250 is selectively connected with the first input port 21 and the second input port 22, wherein when the connecting port 250 is connected with the first input port 21, the drain valve 2 can drain the slurry or cleaning waste water in the pulping chamber 10; and when the connecting port 250 is connected with the second input port 22, the supply system 3 can perform high-pressure impact cleaning on the drain valve 2.

[0032] In this embodiment, the supply system 3 includes a water tank 31 and a water pump 32 installed on the body 1. The water pump 32 is connected to the water tank 31 at one end through a connecting pipe (not shown in the figure), and the other end is connected to the second input port 22 on the drain valve 2. At the same time, the drain valve 2 is provided with a detection device for detecting the position of the valve core 25. The detection device includes a magnet 251 installed on the valve core 25 and a sensing element 243 installed on the valve seat 24. The sensing element 243 cooperates with the magnet 251 inductively, so that when the valve core 25 rotates to communicate with the first input port 21 or the second input port 22, the control unit controls the drive motor 26 to stop rotating.

[0033] For the food processing machine of this embodiment, the drain valve has a first input port and a second input port respectively connected to the pulping chamber and the supply system, and the drain valve also has the same drain port. Since the liquid passage of the drain valve can be selectively connected to the first input port and the second input port, when the liquid passage is connected to the first input port, the slurry or waste water in the pulping chamber can be discharged to the slurry receiving cup or the waste water cup through the first input port, the liquid passage and the drain port, so as to realize the slurry and waste discharge of the pulping chamber. At the same time, when the liquid passage is connected to the second input port, the water in the water tank can pass through the second input port to perform high-pressure impact on the liquid passage in the drain valve, so as to realize the cleaning of the drain valve, and the cleaned waste water can be discharged to the waste water cup through the drain port. The cleaning degree of the drain valve is greatly improved, and the problem of odor and bacteria breeding due to residual slurry residue in the drain valve itself is effectively prevented. Moreover, when foreign matter is blocked in the drain valve, the liquid passage can be subjected to high-pressure impact through the water tank to discharge the foreign matter from the drain port, which greatly improves the drain valve's ability to discharge foreign matter and makes the foreign matter discharge operation simpler.

[0034] It should be noted that, for this embodiment, the supply system may also be an air pump or an air supply device that introduces gas into the drain valve. When the valve core rotates to the connecting port and is connected to the second input port, the air pump or the air supply device may introduce high-pressure gas to clean the liquid passage in the valve core, and the high-pressure gas may be discharged into the external atmosphere through the second input port, the liquid passage and the drain port. Compared to using the high-pressure impact of water in the water tank to clean the drain valve, a large amount of water can be saved. Moreover, when the valve core is blocked by foreign matter, the introduced high-pressure gas may not be limited by the characteristics of the foreign matter, and the ability to discharge the foreign matter is stronger. Of course, the supply system may also include a faucet connected to the drain valve.

[0035] It should also be noted that, in this embodiment, the sensing element for detecting the position of the valve core can be a reed switch or a Hall element. In addition, the pulping chamber of this embodiment is installed in the installation cavity of the machine body and cannot be removed from the machine body. Of course, according to user needs, the pulping chamber can also be designed to be detachable from the machine body.

[0036] In addition, in the present embodiment, the drain port is arranged at the end of the valve core. Of course, for the present embodiment, the drain valve may also have a drain pipe, wherein the drain pipe is connected to the valve core, and the drain port is located at the end of the drain pipe. The drain pipe may be integrally formed with the valve core, or may be sealed and connected to the valve core. In this case, the liquid passage includes a hollow passage of the valve core and the drain pipe. Of course, the drain pipe may be driven to rotate by the valve core. In this case, the waste water cup and the slurry receiving cup are arranged parallel to each other below the drain pipe. When the drain pipe rotates to the top of the waste water cup, waste water may be discharged, and when the drain pipe rotates to the top of the slurry receiving cup, slurry may be discharged. Similarly, the drain pipe is connected to the valve core and may not rotate. In this case, the drain pipe is sleeved on the outside of the valve core and fixed on the valve seat. The valve core is located in the drain pipe and is driven to rotate by the driving motor.

[0037] It should be noted that the above structural changes in this embodiment may also be applicable to other embodiments of the present invention. Embodiment 2:

[0038] like Figure 5 As shown, it is a schematic diagram of the structure of the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the structure of the drain valve is different. In this embodiment, two communication ports are arranged on the valve core 25, including a first communication port 2501 for communicating with the first input port 21 and a second communication port 2502 for communicating with the second input port 22. When the first communication port 2501 is connected with the first input port 21, the second communication port 2502 and the second input port 22 are staggered and closed, and when the second communication port 2502 is connected with the second input port 22, the first communication port 2501 and the first input port 21 are staggered and closed. By selectively connecting the first communication port 2501 with the first input port 21, and the second communication port 2502 with the second input port 22, the drainage of the pulping chamber and the automatic cleaning of the drain valve can also be achieved.

[0039] At the same time, in the present embodiment, an auxiliary channel which is not communicated with the liquid passage is further provided on the valve core 25, and an output port 28 and a third input port 29 are provided on the valve seat (valve housing 241 and valve sleeve 242), the third input port 29 is communicated with the auxiliary supply system, and the output port 28 is communicated with the pulping chamber 10 through the pipeline a. When the valve core 25 is rotated until the two ends of the auxiliary channel are respectively communicated with the third input port 29 and the output port 28, the auxiliary supply system can supply the medium into the pulping chamber 10 through the auxiliary channel of the valve core 25.

[0040] In this embodiment, the auxiliary supply system is the same supply device as the supply system 3 in the first embodiment, and the second input port 22 and the third input port 29 are connected to the same supply device through the three-way valve b. In addition, in this embodiment, a groove 200 is provided on the outer wall of the valve core 25, and the auxiliary channel is formed by the groove 200 on the valve core 25 and the inner wall of the valve seat (i.e., the inner wall of the valve sleeve 242), wherein, after the valve core 25 rotates to the right position, the third input port 29 and the output port 28 are respectively connected to the two ends of the groove 200.

[0041] In this embodiment, two connecting ports are provided on the valve core of the drain valve, and one of the two connecting ports is connected to the pulping chamber and the supply system to realize the drainage of the pulping chamber and the automatic cleaning of the drain valve. It has the same beneficial effects as the first embodiment. At the same time, the drain valve of this embodiment is also provided with an output port connected to the pulping chamber and a third input port connected to the auxiliary supply system. As in the first embodiment, the auxiliary supply device of this embodiment includes a water tank and a water pump. Therefore, water can be fed into the pulping chamber through the drain valve. At this time, the drain valve has the function of a switch valve, which can control the on and off of water feeding into the pulping chamber. Compared with the need to set an independent switch valve structure on the water inlet pipeline, the drain valve of this embodiment has more functions. Of course, for this embodiment, the output port of the drain valve is connected to the cup wall of the pulping chamber. In order to prevent the water in the pulping chamber from flowing back into the pipeline, a separate shut-off valve that can control the on and off of the pipeline can also be set on the pipeline.

[0042] It should also be noted that in this embodiment, the auxiliary channel is formed by the groove provided on the outer wall of the valve core and the inner wall of the valve sleeve. Of course, the auxiliary channel can also be provided through the valve core. In addition, for the valve core of this embodiment, multiple independent auxiliary channels that are not connected to each other can be provided according to different needs, and each auxiliary channel has a corresponding third input port and output port to achieve the functional diversity of the drain valve.

[0043] It should be pointed out that the above structural changes in this embodiment may also be applicable to other embodiments of the present invention.

[0044] 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 food processing machine with a self-cleaning drain valve, comprising a machine body having a pulping cavity, a drain valve disposed outside the pulping cavity, a supply system and a liquid receiving cup connected to the drain valve, characterized in that: The drain valve is provided with a first input port, a second input port, a drain port and a liquid passage, the drain port is located at the end of the liquid passage, and the drain port is arranged above the liquid receiving cup, the first input port is connected with the pulping cavity, the second input port is connected with the supply system, and the liquid passage is selectively connected with the first input port and the second input port, when the first input port is connected with the liquid passage, the liquid in the pulping cavity is discharged into the liquid receiving cup through the first input port, the liquid passage and the drain port; and when the second input port is connected with the liquid passage, the medium in the supply system is discharged into the liquid receiving cup through the second input port, the liquid passage and the drain port The drain valve comprises a valve seat and a valve core arranged in the valve seat, the valve core is rotatable relative to the valve seat, the first input port and the second input port are arranged through the valve seat, the liquid passage is arranged on the valve core, and a connecting port is also arranged on the valve core, the drain port passes through the valve seat and discharges liquid toward the liquid receiving cup, and the connecting port and the drain port are located at two ends of the liquid passage, the valve core is rotated to make the connecting port selectively connected with the first input port and the second input port, wherein, when the connecting port is connected with the first input port, the pulping chamber is drained; and when the connecting port is connected with the second input port, the drain valve is cleaned.

2. The food processor with a self-cleaning drain valve according to claim 1, characterized in that: There is one communication port.

3. The food processor with a self-cleaning drain valve according to claim 1, characterized in that: The communication port includes a first communication port for communicating with the first input port and a second communication port for communicating with the second input port. When the first communication port is communicated with the first input port, the second communication port and the second input port are offset and closed, and when the second communication port is communicated with the second input port, the first communication port and the first input port are offset and closed.

4. The food processor with a self-cleaning drain valve according to claim 1, characterized in that: The drain valve further comprises a drain pipe communicated with the valve core, and a drain port is formed at the end of the drain pipe.

5. The food processing machine with a self-cleaning drain valve according to claim 4, characterized in that: The drain pipe and the valve core are integrally formed; Alternatively, the drain pipe is sealed and connected to the valve core, and the drain pipe is driven to rotate by the valve core; Alternatively, the liquid discharge pipe is sleeved on the outer side of the valve core and fixed on the valve seat, and the liquid discharge pipe does not rotate.

6. The food processor with a self-cleaning drain valve according to claim 1, characterized in that: The valve core is also provided with an auxiliary channel which is not connected with the liquid passage. The valve seat is provided with an output port and a third input port. The third input port is connected with an auxiliary supply system, and the output port is connected with the pulping chamber through a pipeline. When the valve core is rotated until the two ends of the auxiliary channel are respectively connected with the third input port and the output port, the auxiliary supply system can supply medium into the pulping chamber through the auxiliary channel.

7. The food processor with a self-cleaning drain valve according to claim 6, characterized in that: A groove is provided on the outer wall of the valve core, and the auxiliary channel is formed by the groove and the inner wall of the valve seat, wherein after the valve core is rotated into place, the third input port and the output port are respectively connected with the two ends of the groove; Alternatively, a shut-off valve is provided on the pipeline to control the on-off of the pipeline; Alternatively, the valve core is provided with a plurality of mutually independent auxiliary channels; Alternatively, the supply system and the auxiliary supply system are the same supply device, and the second input port and the third input port are connected to the same supply device via a three-way valve.

8. The food processor with a self-cleaning drain valve according to claim 1, characterized in that: The valve seat comprises a valve housing and a valve sleeve fixed in the valve housing, wherein the valve sleeve is wrapped around the outside of the valve core to seal the gap between the valve core and the valve housing; Alternatively, the drain valve is provided with a detection device for detecting the position of the valve core, and the detection device comprises a magnet mounted on the valve core and a sensing element mounted on the valve seat, and the sensing element cooperates with the magnet by induction.

9. The food processor with a self-cleaning drain valve according to claim 1, characterized in that: On the body An installation cavity is provided, and the pulping cavity is detachably installed in the installation cavity; Alternatively, the supply system is a water supply system or a gas supply system; Alternatively, the liquid receiving cup includes a slurry receiving cup and a waste water cup.

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