Food processor capable of working stably

By installing a bend and a check valve at the top of the water inlet pipe, combined with the air pump design, the problem of slurry backflow caused by the easy failure of the check valve is solved, thus protecting the water pump and air pump and improving the stability of the food processing machine and the user experience.

CN223860711UActive Publication Date: 2026-02-03HONGYANG HOME APPLIANCES
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Patent Information

Application Number
CN202520045320.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-02-03
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

In existing food processing machines, the one-way valve is prone to failure after prolonged use, causing slurry backflow, contaminating the water inlet pipe, and damaging the water pump, thus affecting the user experience.

Method used

A bend is installed at the top of the inlet pipe so that its highest point is higher than the highest liquid level in the water tank. Combined with a check valve and air pump design, this achieves a double barrier against the slurry, preventing the slurry from entering the water pump and air pump.

Benefits of technology

It effectively prevents slurry from contaminating the inlet pipe and pump body, extends the life of water pumps and air pumps, simplifies the structure, reduces costs, and improves the user experience.

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Abstract

The utility model discloses a food processor capable of working stably, which relates to the field of life electric appliances and comprises a machine body, a crushing cup and a water tank communicated with a crushing cavity, a water inlet communicated with the crushing cavity is arranged on the side wall of the crushing cup, the water inlet is communicated with the water tank through a water inlet pipe, and a bending section is arranged at the top of the water inlet pipe. The highest point of the bending section is higher than the highest liquid level of the water tank and the highest point of the water inlet, so that water in the water tank can only move to the bending section and cannot cross the highest point of the bending section when the water pump does not work, and the situation that the water in the water tank enters the crushing cavity through the water inlet pipe under the action of pressure difference is avoided; and the situation that the water inlet pipe is polluted, peculiar smell is generated and even mildews due to the fact that the slurry in the crushing cavity continuously flows back to the whole water inlet pipe can be avoided through the bent section, meanwhile, the situation that the slurry enters the water pump through the water inlet pipe and consequently the water pump is damaged and even fails can be avoided, and the protection effect on the water pump is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a food processing machine that operates stably. Background Technology

[0002] Existing food processors typically include a main body, a grinding cup with a grinding chamber inside the main body, a grinding device inside the grinding chamber, and a motor connected to the grinding device. When using a food processor, the user places the food into the grinding chamber, and the grinding device rotates at high speed driven by the motor to process the food. However, traditional soy milk makers require the user to manually add water to the grinding chamber to process soy milk and other ingredients, and cleaning is also required after processing, which is very cumbersome. Therefore, to achieve automatic food processing and cleaning, researchers have installed a water tank outside the main body, connected to the grinding chamber via a water inlet pipe. When using the food processor, the user can use a water pump to pump water from the tank into the grinding chamber to process the food. Similarly, when cleaning the grinding chamber is required after processing, water can be added from the tank to automatically clean the grinding chamber, resulting in a higher degree of automation in the entire food processing process.

[0003] However, when the slurry in the grinding chamber rotates at high speed driven by the grinding device, some of the slurry flows back into the water inlet pipe, causing contamination of the water inlet pipe. Therefore, the applicant's earlier patent application CN201920160972.5 disclosed a multi-functional food processing machine. This machine uses a valve on the water inlet pipe, which opens when water is needed and closes after water intake to prevent slurry backflow. The valve typically has two structures: one is a solenoid valve, but this is abandoned due to its high cost; the other is a one-way valve, which only allows water to flow into the grinding chamber to block the slurry. However, in actual use, it was found that the one-way valve is at risk of failure after prolonged use. This allows slurry to enter the water inlet pipe through the one-way valve, causing contamination, odor, and even mold growth. Furthermore, the slurry can also enter the water pump through the water inlet pipe, damaging or even causing the pump to malfunction, severely impacting the user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a stable food processing machine to solve the problem of how to prevent the water inlet pipe from being contaminated and the water pump from being damaged due to the failure of the one-way valve to block the slurry after long-term use, under the premise of setting a one-way valve on the water inlet pipe between the water tank and the crushing chamber to prevent the slurry backflow.

[0005] To achieve the above objectives, this utility model provides a stable food processing machine, including a machine body, a grinding cup with a grinding chamber disposed within the machine body, a grinding device disposed within the grinding chamber, and a motor connected to the grinding device for transmission. The food processing machine also has a water tank communicating with the grinding chamber. The side wall of the grinding cup has a water inlet communicating with the grinding chamber. The water inlet and the water tank are connected by a water inlet pipe. The top of the water inlet pipe has a bent section, and the highest point of the bent section is higher than the highest liquid level of the water tank and the highest point of the water inlet.

[0006] This application incorporates a water tank connected to the grinding chamber in the food processor, allowing users to automatically add water to the grinding chamber while processing ingredients. Similarly, when cleaning the grinding chamber after processing, water can be added to the chamber automatically, resulting in a more automated food processing process that frees up the user's hands and enhances the user experience.

[0007] Furthermore, the top of the water inlet pipe has a bend, and the highest point of the bend is higher than the highest liquid level in the water tank and the highest point of the water inlet. On the one hand, the highest point of the bend is higher than the highest liquid level in the water tank, so that when the water pump is not working, the water in the water tank can only move to the bend and cannot cross the highest point of the bend, thus preventing the water in the water tank from entering the grinding chamber through the water inlet pipe under the action of pressure difference. On the other hand, when the machine is processing food, if some of the slurry in the grinding chamber rotates at high speed under the drive of the grinding device and enters the water inlet pipe through the water inlet, the bend can prevent the slurry from continuing to flow back into the entire water inlet pipe, causing the water inlet pipe to be contaminated and produce odors or even mold. At the same time, it can also prevent the slurry from entering the water pump through the water inlet pipe and causing damage or even failure of the water pump, thus protecting the water pump and helping to extend the service life of the water pump. It also eliminates the need to install a one-way valve on the water inlet pipe, which helps to simplify the structural components of the whole machine, improve the compactness of the overall structure, and reduce production costs.

[0008] In a preferred embodiment of a stable food processing machine, a one-way valve is also provided on the water inlet pipe, which is located between the bend section and the water tank.

[0009] By installing a check valve on the inlet pipe, the check valve, in conjunction with the bend section, achieves double blocking of the slurry, further preventing the slurry from entering the water pump and causing damage. The check valve is located between the bend section and the water tank, so that the slurry is first blocked by the bend section, thus preventing the slurry from continuing to move into the water tank. If some slurry crosses the bend section, it can be further blocked by the check valve, achieving double blocking. This also prevents the check valve from being severely contaminated by the slurry for a long time, which could lead to odors or even mold, ensuring the cleanliness of the check valve.

[0010] In a preferred embodiment of a stable food processing machine, an air pump is also provided inside the machine body. The air pump is connected to the water inlet pipe through an air inlet pipe, and the connection point between the air inlet pipe and the water inlet pipe is located below the bend section.

[0011] By incorporating an air pump within the machine body, which is connected to the water inlet pipe via an air inlet pipe, users can use the air pump to blow air into the grinding chamber after processing ingredients and cleaning it, thus ensuring rapid drying of the grinding chamber. Simultaneously, the connection point between the air inlet pipe and the water inlet pipe is located below the bend, ensuring that the slurry in the grinding chamber, after passing through the water inlet, can only remain within the water inlet pipe and cannot cross the bend to enter the air inlet pipe, thereby protecting the air inlet pipe and the air pump.

[0012] In a preferred embodiment of a stable food processing machine, the air inlet pipe and water inlet pipe are connected at a position higher than the highest liquid level in the water tank or the highest point of the water inlet.

[0013] By connecting the air inlet pipe and the water inlet pipe at a position higher than the highest liquid level in the water tank or the highest point of the water inlet, when the water in the tank moves into the water pipe without the water pump operating, it can only move below the connection point between the water inlet pipe and the air inlet pipe due to the pressure difference. This effectively prevents water from directly entering the air pump through the air inlet pipe and causing damage to the air pump, thus protecting the air pump.

[0014] In a preferred embodiment of a stable food processing machine, the food processing machine further includes a one-way valve, which includes a first one-way valve located on the water inlet pipe and a second one-way valve located on the air inlet pipe. The first one-way valve is located between the air inlet pipe and the water inlet pipe and the water tank, and the second one-way valve is located between the air inlet pipe and the water inlet pipe and the air pump.

[0015] By installing one-way valves, including a first one-way valve located on the water inlet pipe and a second one-way valve located on the air inlet pipe, the two one-way valves, in conjunction with the bend section, achieve double blocking of the slurry. This further prevents the slurry from entering the water pump and air pump, thus avoiding damage to them. The first one-way valve is located between the air inlet pipe and the water inlet pipe and the water tank, while the second one-way valve is located between the air inlet pipe and the water inlet pipe and the air pump. This ensures that if some slurry crosses the bend section, it can still be further blocked by the two one-way valves, achieving double blocking. This also prevents the two one-way valves from being severely contaminated by prolonged contact with the slurry, which could lead to odors or even mold growth, thus ensuring the cleanliness of the two one-way valves.

[0016] In a preferred embodiment of a stable food processing machine, the food processing machine further includes a one-way valve located between the connection point of the air inlet pipe and the water inlet pipe and the highest point of the bend section.

[0017] By placing the one-way valve between the connection point of the air inlet pipe and the water inlet pipe and the highest point of the bend section, not only can the one-way valve and the bend section work together to achieve double blocking of the slurry, but also only one one-way valve is needed to protect the air pump and water pump. The structure is further simplified and the overall compactness of the machine is further improved.

[0018] In a preferred embodiment of a stable food processing machine, the machine body includes a housing that accommodates a grinding cup and a motor, a water inlet pipe is disposed inside the housing, and the housing is provided with a fixing part for fixing the water inlet pipe to form a bent section.

[0019] By providing a fixing part for the water inlet pipe to form a bent section on the casing, the water inlet pipe can be fixed to form a bent section through the fixing part, and the fixing part can ensure the stability of the bent section structure. This avoids the situation where the bent section will deform or shift under the action of gravity after long-term use, thus preventing it from failing to perform its original function. This ensures the reliability of the bent section structure and improves the stability of the whole machine operation.

[0020] In a preferred embodiment of a stable food processing machine, the fixing part includes a downwardly extending hook provided on the top wall of the machine housing, the bottom end of the hook being higher than the water level in the water tank and the highest point of the water inlet, and the hook being held against the bottom wall of the water inlet pipe.

[0021] By setting the fixing part as a downwardly extending hook provided on the top wall of the casing, with the bottom end of the hook higher than the water tank level and the highest point of the water inlet, and the hook holding the bottom wall of the water inlet pipe, the water inlet pipe can be bent through the hook holding, and the vertical limit of the bent section is achieved under the hook holding action, ensuring the stability of its structure and position.

[0022] In a preferred embodiment of a stable food processing machine, the fixing part includes a slot provided on the side wall of the machine housing near the water tank, and the water inlet pipe is locked in the slot.

[0023] By providing a slot in the fixing part, including a slot on the side wall of the casing near the water tank, the water inlet pipe is locked in the slot, thus fixing its position and ensuring the reliability and stability of its structure and position. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 This is a half-sectional view of a food processing machine in one embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of a food processing machine according to another embodiment of the present invention.

[0027] List of components and reference numerals:

[0028] 1-Main body, 11-Casing; 2-Grinding cup, 21-Grinding chamber; 3-Water inlet pipe, 31-Bent section; 4-Water tank; 5-One-way valve, 51-First one-way valve, 52-Second one-way valve; 6-Water pump; 7-Air inlet pipe; 8-Air pump. Detailed Implementation

[0029] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0030] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figure 1 , Figure 2 As shown, this utility model provides a stable food processing machine, including a body 1, a grinding cup 2 with a grinding chamber 21 disposed inside the body 1, a grinding device disposed inside the grinding chamber 21, and a motor connected to the grinding device for transmission. The food processing machine is also provided with a water tank 4 communicating with the grinding chamber 21. The side wall of the grinding cup 2 is provided with a water inlet communicating with the grinding chamber 21. The water inlet and the water tank 4 are connected by a water inlet pipe 3. The top of the water inlet pipe 3 is provided with a bent section 31, and the highest point of the bent section 31 is higher than the highest liquid level of the water tank 4 and the highest point of the water inlet.

[0032] This application includes a water tank 4 connected to the grinding chamber 21 in the food processor. This allows users to automatically add water to the grinding chamber 21 via the water tank 4 when processing food ingredients, thus facilitating the processing. Furthermore, when the food processing is complete and the grinding chamber 21 needs cleaning, water can also be added via the water tank 4 to automatically clean it. This significantly increases the automation of the entire food processing process, freeing up users' hands and improving the user experience.

[0033] Furthermore, the top of the water inlet pipe 3 is equipped with a bend 31, and the highest point of the bend 31 is higher than the highest liquid level of the water tank 4 and the highest point of the water inlet. On the one hand, since the highest point of the bend 31 is higher than the highest liquid level of the water tank 4, the water in the water tank 4 can only move to the bend 31 and cannot cross the highest point of the bend 31 when the water pump 6 is not working. This prevents the water in the water tank 4 from entering the grinding chamber 21 through the water inlet pipe 3 under the action of pressure difference. On the other hand, when the machine is processing food, the slurry in the grinding chamber 21 rotates at high speed under the drive of the grinding device. During operation, if some slurry enters the inlet pipe 3 through the inlet, the bend section 31 can prevent the slurry from continuing to flow back into the entire inlet pipe 3, thus preventing contamination, odor, or even mold growth. At the same time, it can prevent slurry from entering the water pump 6 through the inlet pipe 3, thus preventing damage or failure of the water pump 6. This protects the water pump 6, helps extend its service life, and eliminates the need for a one-way valve 5 on the inlet pipe 3. This simplifies the overall structure, improves the compactness of the machine, and reduces production costs.

[0034] As a preferred embodiment of this application, such as Figure 1 As shown, a one-way valve 5 is also provided on the water inlet pipe 3, which is located between the bend section 31 and the water tank 4.

[0035] By also installing a one-way valve 5 on the water inlet pipe 3, the one-way valve 5 and the bending section 31 work together to achieve double blocking of the slurry, further preventing the slurry from entering the water pump 6 and causing damage to the water pump 6. Furthermore, the one-way valve 5 is located between the bending section 31 and the water tank 4, so that the slurry is first blocked by the bending section 31, thereby preventing the slurry from continuing to move towards the water tank 4. If some slurry crosses the bending section 31, it can be further blocked by the one-way valve 5, achieving double blocking. This also prevents the one-way valve 5 from being severely contaminated by the slurry for a long time, which could lead to odors or even mold growth, thus ensuring the cleanliness of the one-way valve 5.

[0036] As a preferred embodiment of this application, such as Figure 1As shown, the machine body 2 is also equipped with an air pump 8. The air pump 8 is connected to the water inlet pipe 3 through the air inlet pipe 7, and the connection position between the air inlet pipe 7 and the water inlet pipe 3 is located below the bend section 31.

[0037] By incorporating an air pump 8 within the machine body 1, and connecting the air pump 8 to the water inlet pipe 3 via an air inlet pipe 7, users can use the air pump 8 to blow air into the grinding chamber 21 after processing ingredients and cleaning it, thus achieving rapid drying of the grinding chamber 21. Simultaneously, the connection point between the air inlet pipe 7 and the water inlet pipe 3 is located below the bend section 31, ensuring that the slurry in the grinding chamber 21, after passing through the water inlet, can only remain within the water inlet pipe 3 and cannot cross the bend section 31 to enter the air inlet pipe 7, thereby protecting the air inlet pipe 7 and the air pump 8.

[0038] Furthermore, such as Figure 2 As shown, the air inlet pipe 7 is connected to the water inlet pipe 3 at a position higher than the highest liquid level of the water tank 4 or the highest point of the water inlet.

[0039] By connecting the air inlet pipe 7 and the water inlet pipe 3 at a position higher than the highest liquid level of the water tank 4 or the highest point of the water inlet, the water in the water tank 4, when moving into the water pipe without the water pump 6 working, can only move below the connection point between the water inlet pipe 3 and the air inlet pipe 7 under the action of pressure difference. This effectively prevents water from directly entering the air pump 8 through the air inlet pipe 7 and causing damage to the air pump 8, thus achieving the protection of the air pump 8.

[0040] As a preferred embodiment, such as Figure 2 As shown, the food processing machine also includes a one-way valve 5. It should be noted that this application does not specifically limit the location and structure of the one-way valve 5, which can be any of the following embodiments:

[0041] Example 1: As shown in the figure, in this example, the one-way valve 5 includes a first one-way valve 51 located in the water inlet pipe 3 and a second one-way valve 52 located in the air inlet pipe 7. The first one-way valve 51 is located between the air inlet pipe 7 and the water inlet pipe 3 and the water tank 4, and the second one-way valve 52 is located between the air inlet pipe 7 and the water inlet pipe 3 and the air pump 8.

[0042] By setting up one-way valves 5, which include a first one-way valve 51 located on the water inlet pipe 3 and a second one-way valve 52 located on the air inlet pipe 7, the two one-way valves 5 cooperate with the bend section 31 to achieve double blocking of the slurry, further preventing the slurry from entering the water pump 6 and air pump 8 and causing damage to them. The first one-way valve 51 is located between the air inlet pipe 7 and the water inlet pipe 3 and the water tank 4, and the second one-way valve 52 is located between the air inlet pipe 7 and the water inlet pipe 3 and the air pump 8. This allows the two one-way valves 5 to further block any slurry that crosses the bend section 31, achieving double blocking. It also prevents the two one-way valves 5 from being severely contaminated and developing odors or even mold due to prolonged contact with the slurry, ensuring the cleanliness of the two one-way valves 5.

[0043] Example 2: In this example, the one-way valve 5 is located between the position where the air inlet pipe 7 and the water inlet pipe 3 connect and the highest point of the bend section 31.

[0044] By placing the one-way valve 5 between the connection point of the air inlet pipe 7 and the water inlet pipe 3 and the highest point of the bend section 31, not only can the one-way valve 5 and the bend section 31 work together to achieve double blocking of the slurry, but also only one one-way valve 5 can be used to protect the air pump 8 and the water pump 6. The structure is further simplified and the compactness of the whole machine structure is further improved.

[0045] In a preferred embodiment of this application, the machine body 1 includes a housing 11 that accommodates the pulverizing cup 2 and the motor, a water inlet pipe 3 is disposed inside the housing 11, and the housing 11 is provided with a fixing part for fixing the water inlet pipe 3 to form a bent section 31.

[0046] By providing a fixing part for fixing the water inlet pipe 3 to form a bent section 31 in the housing 11, the water inlet pipe 3 can form a bent section 31 through the fixing part, and the fixing part can ensure the stability of the bent section 31 structure. This avoids the situation where the bent section 31 will deform or shift under the action of gravity after long-term use, thus preventing it from failing to perform its original function. This ensures the reliability of the bent section 31 structure and improves the stability of the whole machine operation.

[0047] It should be noted that this application does not specifically limit the structure of the fixing part, which can be any of the following embodiments:

[0048] Example 1: In this example, the fixing part includes a downwardly extending hook provided on the top wall of the housing 11. The bottom end of the hook is higher than the liquid level of the water tank 4 and the highest point of the water inlet, and the hook is held on the bottom wall of the water inlet pipe 3.

[0049] By setting the fixing part as a downwardly extending hook provided on the top wall of the housing 11, the bottom end of the hook is higher than the liquid level of the water tank 4 and the highest point of the water inlet, and the hook is held on the bottom wall of the water inlet pipe 3, so that the water inlet pipe 3 can be formed into a bent section 31 by the hook, and the bent section 31 is vertically limited under the hooking action, ensuring the stability of its structure and position.

[0050] Example 2: The fixing part includes a slot provided on the side wall of the housing 11 near the water tank 4, and the water inlet pipe 3 is locked in the slot.

[0051] By providing a slot on the side wall of the housing 11 near the water tank 4, the water inlet pipe 3 is fixed in the slot, thus ensuring the reliability and stability of its structure and position.

[0052] Example 3: In this example, the housing 11 is also provided with a support frame that is fixedly connected to the inner wall of the housing 11, and the support frame is supported below the bent section 31.

[0053] The technical solutions protected by this utility model are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this utility model. Although this utility model has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A food processing machine with stable operation, comprising a body, a grinding cup disposed within the body and having a grinding chamber, a grinding device disposed within the grinding chamber, and a motor drivenly connected to the grinding device; the food processing machine further comprising a water tank communicating with the grinding chamber, characterized in that, The side wall of the pulverizing cup is provided with a water inlet that communicates with the pulverizing chamber. The water inlet is connected to the water tank through a water inlet pipe. The top of the water inlet pipe is provided with a bend, and the highest point of the bend is higher than the highest liquid level of the water tank and the highest point of the water inlet.

2. The food processing machine with stable operation according to claim 1, characterized in that, The inlet pipe is also equipped with a one-way valve, which is located between the bend and the water tank.

3. The food processing machine with stable operation according to claim 1, characterized in that, The machine body is also equipped with an air pump, which is connected to the water inlet pipe through an air inlet pipe, and the connection point between the air inlet pipe and the water inlet pipe is located below the bend section.

4. The food processing machine with stable operation according to claim 3, characterized in that, The air inlet pipe is connected to the water inlet pipe at a position higher than the highest liquid level in the water tank or the highest point of the water inlet.

5. A food processing machine with stable operation according to claim 3, characterized in that, The food processing machine also includes a one-way valve, which includes a first one-way valve located on the water inlet pipe and a second one-way valve located on the air inlet pipe. The first one-way valve is located between the air inlet pipe and the water inlet pipe and the water tank, and the second one-way valve is located between the air inlet pipe and the water inlet pipe and the air pump.

6. The food processing machine with stable operation according to claim 3, characterized in that, The food processing machine also includes a one-way valve, which is located between the point where the air inlet pipe and the water inlet pipe connect and the highest point of the bend section.

7. The food processing machine with stable operation according to claim 1, characterized in that, The machine body includes a housing that accommodates the pulverizing cup and the motor. The water inlet pipe is disposed inside the housing, and the housing is provided with a fixing part for fixing the water inlet pipe to form the bent section.

8. A food processing machine with stable operation according to claim 7, characterized in that, The fixing part includes a downwardly extending hook provided on the top wall of the housing. The bottom end of the hook is higher than the water level in the water tank and the highest point of the water inlet, and the hook is held in place by the bottom wall of the water inlet pipe.

9. A food processing machine with stable operation according to claim 7, characterized in that, The fixing part includes a slot provided on the side wall of the housing near the water tank, and the water inlet pipe is locked in the slot.

10. A food processing machine with stable operation according to claim 7, characterized in that, The housing is also provided with a support frame that is fixedly connected to the inner wall of the housing, and the support frame is supported below the bent section.

Citation Information

Patent Citations

  • Multifunctional food processor

    CN209863413U