Food processor with good sealing effect

Abstract

The utility model discloses a food processor with a good sealing effect, which relates to the field of life electric appliances and comprises a main machine and a cup body assembly, the cup body assembly comprises a cup body with an upper opening and a lower opening and a cutter holder arranged at the lower end opening of the cup body, the cutter holder comprises a heating disc and a heat insulation sleeve arranged below the heating disc, and a stirring cutter assembly is arranged in the middle of the heating disc. The stirring cutter assembly comprises a surrounding plate extending downwards from the bottom wall of the heating disc, a bearing arranged in the surrounding plate and a cutter shaft penetrating through the bearing, the heat insulation sleeve is provided with a boss extending upwards, a sealing ring is clamped between the boss and the surrounding plate, clamping installation of the sealing ring can be synchronously achieved while the heat insulation sleeve and the heating disc are installed, installation is more convenient and faster, and the service life of the stirring cutter assembly is prolonged. And meanwhile, the structures of the sealing ring and the heat insulation sleeve are simplified, so that the sealing ring can improve the production efficiency while achieving sealing and buffering shock absorption, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a food processing machine with good sealing effect. Background Art

[0002] Existing food processors usually include a main unit and a cup assembly. The cup assembly is provided with a stirring element that is transmission-connected to a motor in the main unit. When a user uses the food processor to process food, the user places the food in the cup assembly, and then the motor drives the stirring element at high speed to process the food. In order to improve the function of the food processor, a heating plate is usually arranged under the cup body, and the food in the cup body is heated by the heating of the heating plate. At the same time, in order to prevent the heat on the heating plate from being transferred to the main machine in large quantities, an insulating sleeve is arranged under the heating plate to separate the main machine from the heating plate. However, after the insulating sleeve is connected to the heating plate, there will be a gap between the two. In order to prevent the food slurry and the like from entering the insulating sleeve through the gap during food processing, the existing patent discloses a stirring knife seat assembly, which is provided with two ring ribs extending upward on the insulating sleeve, and the sealing ring is fixed in the grooves formed by the two rings. At the same time, in order to better clean the cup body and the knife seat, the knife seat is usually arranged to be detachably connected to the cup body. When the knife seat is removed and soaked for cleaning, the sealing requirement of the knife seat is greater. Although it can achieve the sealing effect, the structure is relatively complicated, resulting in an increase in the manufacturing cost of the whole machine, and the assembler has more assembly steps during assembly, resulting in a low assembly efficiency. In addition, as the number of structural components increases, the sealing effect of the knife seat becomes worse, which easily causes water stains and the like to enter the knife seat during cleaning. Utility Model Content

[0003] The utility model aims to provide a food processing machine with good sealing effect, so as to solve the problems in the existing food processing machine that the sealing structure of the heat insulation sleeve and the heating plate is complicated, resulting in increased manufacturing cost, low assembly efficiency and poor sealing effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a food processing machine with good sealing effect, including a main machine and a cup body assembly, the cup body assembly includes a cup body with upper and lower openings and a knife seat arranged at the lower end opening of the cup body, the knife seat includes a heating plate and a heat insulation sleeve arranged below the heating plate, a stirring knife assembly is provided in the middle of the heating plate, the stirring knife assembly includes a surrounding plate extending downward from the bottom wall of the heating plate, a bearing arranged in the surrounding plate and a knife shaft passing through the bearing, the heat insulation sleeve is provided with a boss extending upward, and a sealing ring is clamped between the boss and the surrounding plate.

[0005] The present application achieves sealing between the boss and the enclosure by clamping a sealing ring between the boss and the enclosure. With the help of the deformable performance of the sealing ring, the tightness of the fit between the boss and the enclosure is greatly improved, and the situation that slurry or food, etc. enters the insulation sleeve through the gap between the enclosure and the boss during food processing, causing internal parts to get damp or even damaged, is effectively avoided, thereby improving the protection of the parts in the insulation sleeve; on the other hand, it can achieve effective isolation between the boss and the enclosure, play a role in buffering and shock absorption, and avoid direct contact between the boss and the enclosure, which causes the motor to vibrate when rotating at high speed, causing the boss and the enclosure to collide relative to each other, thereby generating a large noise, which helps to improve the shock absorption and noise reduction effect and enhance the user experience; at the same time, compared with the existing installation method of the sealing ring, it only needs to be clamped and installed when the insulation sleeve and the heating plate are installed, so that the installation is more convenient and quick, and the structure of the sealing ring and the insulation sleeve is simplified, so that the sealing ring can achieve sealing and buffering and shock absorption while improving production efficiency and reducing production costs. Preferably, the knife holder is detachably connected to the cup body, which is convenient for users to clean the knife holder and can ensure that the knife holder is cleaned more thoroughly, avoiding the situation where dirt accumulates on the knife holder for a long time and causes the knife holder to produce odor or even mold, and the boss and the enclosure plate realize axial clamping of the sealing ring. When the insulation sleeve and the heating plate are assembled, an axially fixed fixing will be provided, thereby increasing the clamping force on the sealing ring, thereby further improving the sealing of the knife holder, preventing cleaning water and the like from entering the knife holder, and realizing protection of various components in the knife holder.

[0006] In a preferred implementation of a food processor with good sealing effect, the top wall of the boss is further provided with a positioning ring extending upward, and the positioning ring abuts against the side wall of the sealing ring for limiting position.

[0007] By providing an upwardly extending positioning ring on the top wall of the boss, the positioning ring and the side wall of the sealing ring are abutted and limited. On the one hand, after the positioning ring and the sealing ring are abutted, the contact surface between the positioning ring and the sealing ring and the contact surface between the boss and the enclosure are not in the same plane, so that even if food slurry and the like can pass through the contact surface between the positioning ring and the sealing ring, it needs to pass through the bent channel to enter between the boss and the enclosure when moving between the boss and the enclosure, thereby greatly improving the sealing performance of the sealing ring; on the other hand, the positioning ring can realize the positioning of the sealing ring, ensure the stability of the position of the sealing ring, avoid the situation where the sealing ring undergoes lateral displacement after long-term use, resulting in poor sealing effect or even sealing failure of the sealing ring, thereby ensuring the sealing and shock absorbing effect of the sealing ring.

[0008] In a preferred implementation of a food processing machine with good sealing effect, the positioning ring extends upward from the inner side of the enclosure plate, and the sealing ring is sleeved on the outer periphery of the positioning ring.

[0009] By setting the positioning ring to extend upward from the inner side of the enclosure plate, and the sealing ring is sleeved on the outer periphery of the positioning ring, the sealing ring can be directly sleeved on the outer periphery of the positioning ring during installation, which can achieve rapid and accurate alignment of the sealing ring, help to further improve the assembly efficiency of the sealing ring, and at the same time ensure the accuracy of the installation of the sealing ring, thereby ensuring that after the knife seat is assembled, the enclosure plate can be accurately aligned with the sealing ring, thereby ensuring the sealing effect of the sealing ring. At the same time, the top surface of the positioning ring increases the height of the top surface of the boss, so that even if the slurry passes through the through hole for the knife shaft to pass through, it needs to pass over the higher positioning ring to contact the lower shaft seal, thereby blocking the slurry of the food, which helps to further improve the blocking and sealing effect of the slurry.

[0010] In a preferred implementation of a food processor with good sealing effect, the top surface of the positioning ring is located above the top surface of the sealing ring, and the outer side wall of the positioning ring abuts against the inner side wall of the enclosure.

[0011] By setting the top surface of the positioning ring to be above the top surface of the sealing ring, the height of the top surface of the positioning ring is further increased, thereby further achieving the blocking of the food slurry, and further improving the blocking and sealing effect of the slurry. At the same time, the outer wall of the positioning ring abuts against the inner wall of the enclosure, so that the positioning ring and the enclosure are also sealed, thereby achieving the sealing of the sealing ring and the boss and the sealing of the positioning ring and the boss, thereby achieving a double sealing effect, which helps to further improve the sealing performance. And when assembling the insulation sleeve and the heating plate, the positioning of the positioning ring and the enclosure can achieve rapid alignment of the two, thereby further improving the assembly efficiency of the insulation sleeve and the heating plate, and by means of the mutual limiting abutment of the positioning ring and the enclosure, the stability of the positions of the two is ensured.

[0012] In a preferred implementation of a food processor with good sealing effect, the positioning ring extends upward from directly below the enclosure, and the bottom end portion of the enclosure abuts against the positioning ring, and the other portion of the bottom end of the enclosure abuts against the sealing ring.

[0013] By setting the positioning ring to extend upward from directly below the enclosure, and the bottom end portion of the enclosure abuts against the positioning ring, and the other parts of the bottom end of the enclosure abut against the sealing ring, the bottom end of the enclosure can be simultaneously abutted against the positioning ring and the sealing ring, so that a first layer of seal is formed between the positioning ring and the enclosure, and a second layer of seal is formed between the enclosure and the sealing ring, thereby further improving the sealing effect, and being able to further prevent slurry or food materials from entering the insulation sleeve through the gap between the enclosure and the boss, causing internal components to become damp or even damaged.

[0014] In a preferred implementation of a food processor with good sealing effect, the mixing blade assembly also includes an upper shaft seal arranged above the bearing and a lower shaft seal arranged below the bearing, the outer wall of the lower shaft seal abuts against the inner wall of the enclosure, and the bottom wall abuts against the boss.

[0015] By setting the lower shaft seal so that the outer wall abuts against the inner wall of the enclosure, and the bottom wall abuts against the boss, a first layer of seal is formed between the lower shaft seal and the boss, and a second layer of seal is formed between the enclosure and the sealing ring, thereby achieving a double sealing effect, further improving the sealing effect, and being able to further prevent slurry or food materials from entering the insulation sleeve through the gap between the enclosure and the boss, causing internal components to become damp or even damaged.

[0016] In a preferred implementation of a food processing machine with good sealing effect, the top wall of the boss is further provided with a positioning ring extending upward, the positioning ring extends to the inner side of the enclosure and abuts against the lower shaft seal.

[0017] A positioning ring extending upward is also provided through the top wall of the boss, and the positioning ring extends to the inner side of the enclosure and abuts against the lower shaft seal. On the one hand, after the positioning ring abuts against the lower shaft seal, the contact surface between the positioning ring and the lower shaft seal and the contact surface between the boss and the enclosure are not on the same plane, so that even if food slurry can pass through the contact surface between the positioning ring and the lower shaft seal, it needs to pass through the bent channel to enter between the boss and the enclosure when moving between the boss and the enclosure, which greatly improves the sealing performance of the lower shaft seal; on the other hand, the top surface of the positioning ring increases the height of the top surface of the boss, so that even if the slurry passes through the through hole for the knife shaft to pass through, it needs to pass over the higher positioning ring to contact the lower shaft seal, thereby blocking the food slurry, which helps to further improve the blocking and sealing effect of the slurry.

[0018] In a preferred implementation of a food processor with good sealing effect, the lower shaft seal includes a shaft seal portion extending laterally and an abutment portion connected to the outer periphery of the shaft seal portion and extending vertically, and the abutment portion is clamped between the positioning ring and the enclosure plate.

[0019] By setting the abutment portion to be clamped between the positioning ring and the enclosure, the inner side wall of the abutment portion and the inner side wall of the positioning ring are abutted and sealed, the bottom wall and the top surface of the boss are abutted and sealed, and the outer side wall and the inner side wall of the enclosure are abutted and sealed, thereby achieving triple sealing of the lower shaft seal, further improving the sealing effect of the lower shaft seal, and further preventing slurry and the like from entering the insulation sleeve or the bearing. At the same time, the clamping of the positioning ring and the enclosure on the abutment portion improves the limiting effect of the lower shaft seal, ensures the stability of its position, and avoids the displacement of the lower shaft seal after long-term use, which causes the lower shaft seal to deteriorate or even fail in sealing effect, which helps to further improve the sealing stability of the lower shaft seal.

[0020] In a preferred implementation of a food processor with good sealing effect, the sealing ring includes a sealing portion clamped between the boss and the enclosure and a positioning lug protruding from the outer periphery of the sealing portion.

[0021] By configuring the sealing ring to include a sealing portion clamped between the boss and the enclosure and a positioning lug protruding from the outer periphery of the sealing portion, the sealing ring can be quickly aligned during installation through the positioning of the positioning lug, thereby further improving its assembly efficiency.

[0022] In a preferred implementation of a food processor with good sealing effect, the positioning lug is provided with a positioning hole, the heating plate is provided with a stud extending downward, the insulation sleeve is provided with a connecting hole axially aligned with the positioning hole, and the food processor also includes a connecting part, which passes through the connecting hole and the positioning hole in sequence and is fastened to the stud.

[0023] By setting the connecting piece to pass through the connecting hole and the positioning hole in sequence and fasten to the stud, the sealing ring can be positioned and installed synchronously while the heat insulation sleeve and the heating plate are connected and fixed, which helps to further improve the assembly efficiency of the knife seat. At the same time, the cooperation of the positioning hole and the connecting piece can realize the lateral limit of the sealing ring, further improve the stability of the sealing ring position, and ensure its sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 This is a schematic structural diagram of a knife holder in one embodiment of the utility model;

[0026] Figure 2 A cross-sectional view of a knife holder in one embodiment of the utility model;

[0027] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0028] Figure 4 This is an exploded view of a knife holder in one embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a sealing ring in one embodiment of the utility model;

[0030] Figure 6 It is a schematic structural diagram of a heat insulation sleeve in one embodiment of the utility model.

[0031] List of parts and reference numerals:

[0032] 1-heating plate, 11-enclosure; 2-insulating sleeve, 21-boss, 211-positioning ring; 3-knife shaft; 4-bearing; 5-sealing ring, 51-sealing part, 52-positioning lug; 6-lower shaft seal; 7-upper shaft seal. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0034] It should be noted that many specific details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific implementation methods disclosed below.

[0035] like Figures 1 to 6 As shown, the utility model provides a food processing machine with good sealing effect, including a main machine and a cup body assembly, the cup body assembly includes a cup body with upper and lower openings and a knife seat arranged at the lower end opening of the cup body, the knife seat includes a heating plate 1 and a heat insulation sleeve 2 arranged below the heating plate 1, a stirring knife assembly is provided in the middle of the heating plate 1, the stirring knife assembly includes a surrounding plate 11 extending downward from the bottom wall of the heating plate 1, a bearing 4 arranged in the surrounding plate 11 and a knife shaft 3 passing through the bearing 4, the heat insulation sleeve 2 is provided with a boss 21 extending upward, and a sealing ring 5 is clamped between the boss 21 and the surrounding plate 11.

[0036] The present application sandwiches a sealing ring 5 between the boss 21 and the enclosure 11. On the one hand, the sealing between the boss 21 and the enclosure 11 is achieved. With the help of the deformable performance of the sealing ring 5, the tightness of the fit between the boss 21 and the enclosure 11 is greatly improved, and the slurry or food, etc., are effectively prevented from entering the insulation sleeve 2 through the gap between the enclosure 11 and the boss 21 during food processing, causing the internal parts to get damp or even damaged, thereby improving the protection of the parts in the insulation sleeve 2; on the other hand, it can achieve effective isolation between the boss 21 and the enclosure 11, play a role in buffering and shock absorption, and avoid the boss 21 and the enclosure from getting wet or even damaged. 11 direct contact causes the motor to rotate at high speed, driving the knife seat to vibrate, causing the boss 21 and the enclosure 11 to collide relative to each other, thereby generating a large noise situation, which helps to improve the shock absorption and noise reduction effect and enhance the user experience; at the same time, compared with the existing installation method of the sealing ring 5, it is only necessary to clamp and install the sealing ring 5 simultaneously when the insulation sleeve 2 and the heating plate 1 are installed, which makes the installation more convenient and quick, and at the same time simplifies the structure of the sealing ring 5 and the insulation sleeve 2, so that the sealing ring 5 can achieve sealing and buffering and shock absorption while improving production efficiency and reducing production costs. Preferably, the knife holder is detachably connected to the cup body, which is convenient for users to clean the knife holder and can ensure that the knife holder is cleaned more thoroughly, avoiding the situation where dirt accumulates on the knife holder for a long time and causes the knife holder to produce odor or even mold, and the boss 21 and the surrounding plate 11 realize 5-axial clamping of the sealing ring. When the insulation sleeve 2 and the heating plate 1 are assembled, an axially fixed fixing will be provided, thereby increasing the clamping force on the sealing ring, thereby further improving the sealing of the knife holder, preventing cleaning water and the like from entering the knife holder, and realizing protection of various components in the knife holder.

[0037] It should be noted that the molding of the enclosure 11 is not specifically limited in the present application. It can be a separate structural component and the enclosure 11 is connected to the heating plate 1 by a connector or welding. As a preferred embodiment of the present application, Figure 2 As shown, the enclosure 11 and the heating plate 1 are formed integrally.

[0038] As a preferred embodiment of the present application, Figure 2 , Figure 3 As shown, the top wall of the boss 21 is also provided with a positioning ring 211 extending upward, and the positioning ring 211 abuts against the side wall of the sealing ring 5. It should be noted that the abutment between the above structures can be direct contact between surfaces, or can be indirect contact achieved by other structures such as shock-absorbing pads.

[0039] By further providing a positioning ring 211 extending upward on the top wall of the boss 21, the positioning ring 211 abuts against the side wall of the sealing ring 5 to limit the position. On the one hand, after the positioning ring 211 abuts against the sealing ring 5, the contact surface between the positioning ring 211 and the sealing ring 5 and the contact surface between the boss 21 and the enclosure 11 are not on the same plane, so that even if food slurry or the like can pass through the contact surface between the positioning ring 211 and the sealing ring 5, it needs to pass through the bent channel to enter between the boss 21 and the enclosure 11 when moving between the boss 21 and the enclosure 11, thereby greatly improving the sealing performance of the sealing ring 5; on the other hand, the positioning ring 211 can realize the positioning of the sealing ring 5, ensure the stability of the position of the sealing ring 5, avoid the situation where the sealing ring 5 undergoes lateral displacement after long-term use, resulting in poor sealing effect or even sealing failure of the sealing ring 5, and ensure the sealing and shock-absorbing effect of the sealing ring 5.

[0040] It should be noted that the present application does not specifically limit the abutment position of the positioning ring 211 and the sealing sleeve. The positioning ring 211 may extend to the outside of the sealing ring 5, and the inner wall of the positioning ring 211 abuts against the outer wall of the sealing ring 5. As a preferred embodiment of the present application, Figure 3 As shown, the positioning ring 211 extends upward from the inner side of the enclosure plate 11 , and the sealing ring 5 is sleeved on the outer periphery of the positioning ring 211 .

[0041] By setting the positioning ring 211 to extend upward from the inner side of the enclosure 11, and the sealing ring 5 is sleeved on the outer periphery of the positioning ring 211, the sealing ring 5 can be directly sleeved on the outer periphery of the positioning ring 211 during installation, which can achieve rapid and accurate alignment of the sealing ring 5, help to further improve the assembly efficiency of the sealing ring 5, and at the same time ensure the accuracy of the installation of the sealing ring 5, thereby ensuring that after the knife seat is assembled, the enclosure 11 can be accurately aligned with the sealing ring 5, thereby ensuring the sealing effect of the sealing ring 5. At the same time, the top surface of the positioning ring 211 increases the height of the top surface of the boss 21, so that even if the slurry passes through the through hole for the knife shaft 3 to pass through, it needs to pass over the higher positioning ring 211 to contact the lower shaft seal 6, thereby blocking the slurry of the food, which helps to further improve the blocking and sealing effect of the slurry.

[0042] Furthermore, the top surface of the positioning ring 211 is located above the top surface of the sealing ring 5 , and the outer side wall of the positioning ring 211 abuts against the inner side wall of the enclosure 11 .

[0043] By setting the top surface of the positioning ring 211 to be located above the top surface of the sealing ring 5, the height of the top surface of the positioning ring 211 is further increased, thereby further achieving the blocking of the food slurry, and further improving the blocking and sealing effect of the slurry. At the same time, the outer wall of the positioning ring 211 abuts against the inner wall of the enclosure 11, so that the positioning ring 211 and the enclosure 11 are also sealed, thereby achieving the sealing of the sealing ring 5 and the boss 21 and the sealing of the positioning ring 211 and the boss 21, thereby achieving a double sealing effect, which helps to further improve the sealing performance. And when assembling the heat insulation sleeve 2 and the heating plate 1, the positioning of the positioning ring 211 and the enclosure 11 can achieve rapid alignment of the two, thereby further improving the assembly efficiency of the heat insulation sleeve 2 and the heating plate 1, and by means of the mutual limiting abutment of the positioning ring 211 and the enclosure 11, the stability of the positions of the two is ensured.

[0044] As a preference under this embodiment, the positioning ring 211 extends upward from directly below the enclosure 11 , and the bottom end portion of the enclosure 11 abuts against the positioning ring 211 , and the other portion of the bottom end of the enclosure 11 abuts against the sealing ring 5 .

[0045] By setting the positioning ring 211 to extend upward from directly below the enclosure 11, and the bottom end portion of the enclosure 11 abuts against the positioning ring 211, and the other parts of the bottom end of the enclosure 11 abut against the sealing ring 5, the bottom end of the enclosure 11 can simultaneously abut against the positioning ring 211 and the sealing ring 5, so that a first layer of seal is formed between the positioning ring 211 and the enclosure 11, and a second layer of seal is formed between the enclosure 11 and the sealing ring 5, which further improves the sealing effect and can further prevent slurry or food from entering the insulation sleeve 2 through the gap between the enclosure 11 and the boss 21, causing internal components to become damp or even damaged.

[0046] As a preferred implementation of the present application, Figure 3 As shown, the stirring blade assembly also includes an upper shaft seal 7 arranged above the bearing 4 and a lower shaft seal 6 arranged below the bearing 4. The outer wall of the lower shaft seal 6 abuts against the inner wall of the enclosure 11, and the bottom wall abuts against the boss 21.

[0047] By setting the lower shaft seal 6 so that the outer wall abuts against the inner wall of the enclosure 11, and the bottom wall abuts against the boss 21, a first layer of seal is formed between the lower shaft seal 6 and the boss 21, and a second layer of seal is formed between the enclosure 11 and the sealing ring 5, thereby achieving a double sealing effect, further improving the sealing effect, and being able to further prevent slurry or food materials from entering the insulation sleeve 2 through the gap between the enclosure 11 and the boss 21, causing internal components to become damp or even damaged.

[0048] As a preferred embodiment of this embodiment, Figure 3As shown, the top wall of the boss 21 is further provided with a positioning ring 211 extending upward, and the positioning ring 211 extends to the inner side of the enclosure 11 and abuts against the lower shaft seal 6 .

[0049] The top wall of the boss 21 is also provided with a positioning ring 211 extending upward, and the positioning ring 211 extends to the inner side of the enclosure 11 and abuts against the lower shaft seal 6. On the one hand, after the positioning ring 211 abuts against the lower shaft seal 6, the contact surface of the positioning ring 211 and the lower shaft seal 6 is not in the same plane as the contact surface of the boss 21 and the enclosure 11, so that even if food slurry can pass through the contact surface between the positioning ring 211 and the lower shaft seal 6, it needs to pass through the bent channel when moving between the boss 21 and the enclosure 11, thereby greatly improving the sealing performance of the lower shaft seal 6; on the other hand, the top surface of the positioning ring 211 increases the height of the top surface of the boss 21, so that even if the slurry passes through the through hole for the knife shaft 3 to pass through, it needs to pass over the higher positioning ring 211 to contact with the lower shaft seal 6, thereby blocking the food slurry, which helps to further improve the blocking and sealing effect of the slurry.

[0050] Furthermore, the lower shaft seal 6 includes a shaft seal portion extending transversely and an abutment portion connected to the outer periphery of the shaft seal portion and extending vertically, and the abutment portion is clamped between the positioning ring 211 and the enclosure 11 .

[0051] By setting the abutting portion to be clamped between the positioning ring 211 and the enclosure 11, the inner side wall of the abutting portion and the inner side wall of the positioning ring 211 are abutted and sealed, the bottom wall and the top surface of the boss 21 are abutted and sealed, and the outer side wall and the inner side wall of the enclosure 11 are abutted and sealed, thereby achieving triple sealing of the lower shaft seal 6, further improving the sealing effect of the lower shaft seal 6, and further preventing slurry and the like from entering the insulation sleeve 2 or the bearing 4. At the same time, the clamping of the abutting portion by the positioning ring 211 and the enclosure 11 improves the limiting effect of the lower shaft seal 6, ensures the stability of its position, and avoids the situation where the lower shaft seal 6 is displaced after long-term use, resulting in the deterioration or even failure of the sealing effect of the lower shaft seal 6, which helps to further improve the sealing stability of the lower shaft seal 6.

[0052] It should be noted that the present application does not specifically limit the structure of the sealing ring 5. As a preferred embodiment of the present application, Figure 3 , Figure 5 As shown, the sealing ring 5 includes a sealing portion 51 clamped between the boss 21 and the enclosure 11 and a positioning lug 52 protruding from the outer periphery of the sealing portion 51 .

[0053] By configuring the sealing ring 5 to include a sealing portion 51 clamped between the boss 21 and the enclosure 11 and a positioning lug 52 protruding from the outer periphery of the sealing portion 51, the sealing ring 5 can be quickly aligned during installation through the positioning of the positioning lug 52, thereby further improving its assembly efficiency.

[0054] Furthermore, the positioning lug 52 is provided with a positioning hole, the heating plate 1 is provided with a stud extending downward, the insulation sleeve 2 is provided with a connecting hole axially aligned with the positioning hole, and the food processor also includes a connecting piece, which passes through the connecting hole and the positioning hole in turn and is fastened to the stud.

[0055] By setting the connecting piece to pass through the connecting hole and the positioning hole in sequence and fasten to the stud, the sealing ring 5 can be positioned and installed synchronously while the heat insulation sleeve 2 and the heating plate 1 are connected and fixed, which helps to further improve the assembly efficiency of the knife seat. At the same time, the cooperation of the positioning hole and the connecting piece can realize the lateral limit of the sealing ring 5, further improve the stability of the position of the sealing ring 5, and ensure its sealing effect.

[0056] Of course, the sealing ring 5 in the present application is not limited to the above-mentioned configuration, and it may also only include the annular sealing portion 51 , and be fixed only by clamping the enclosure 11 and the boss 21 .

[0057] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. A food processor with good sealing effect, comprising a main machine and a cup assembly, wherein the cup assembly comprises a cup body with upper and lower openings and a knife seat arranged at the lower opening of the cup body, wherein the knife seat comprises a heating plate and a heat insulating sleeve arranged below the heating plate, characterized in that: A stirring blade assembly is provided in the middle of the heating plate, and the stirring blade assembly includes a surrounding plate extending downward from the bottom wall of the heating plate, a bearing provided in the surrounding plate, and a blade shaft passing through the bearing. The heat insulation sleeve is provided with an upwardly extending boss, and a sealing ring is clamped between the boss and the surrounding plate.

2. A food processing machine with good sealing effect according to claim 1, characterized in that: The top wall of the boss is also provided with a positioning ring extending upward, and the positioning ring abuts against the side wall of the sealing ring to limit position.

3. A food processing machine with good sealing effect according to claim 2, characterized in that: The positioning ring extends upward from the inner side of the enclosure plate, and the sealing ring is sleeved on the outer periphery of the positioning ring.

4. A food processing machine with good sealing effect according to claim 3, characterized in that: The top surface of the positioning ring is located above the top surface of the sealing ring, and the outer side wall of the positioning ring abuts against the inner side wall of the enclosure plate.

5. A food processing machine with good sealing effect according to claim 2, characterized in that: The positioning ring extends upward from directly below the enclosure plate, and the bottom end portion of the enclosure plate abuts against the positioning ring, and the other portion of the bottom end of the enclosure plate abuts against the sealing ring.

6. A food processing machine with good sealing effect according to claim 1, characterized in that: The stirring blade assembly also includes an upper shaft seal arranged above the bearing and a lower shaft seal arranged below the bearing, the outer wall of the lower shaft seal abuts against the inner wall of the enclosure plate, and the bottom wall abuts against the boss.

7. A food processing machine with good sealing effect according to claim 6, characterized in that: The top wall of the boss is also provided with a positioning ring extending upward, and the positioning ring extends to the inner side of the enclosure plate and abuts against the lower shaft seal.

8. A food processing machine with good sealing effect according to claim 7, characterized in that: The lower shaft seal comprises a shaft seal portion extending transversely and an abutment portion connected to the outer periphery of the shaft seal portion and extending vertically, wherein the abutment portion is clamped between the positioning ring and the enclosure plate.

9. A food processing machine with good sealing effect according to claim 1, characterized in that: The sealing ring comprises a sealing portion clamped between the boss and the enclosure plate and a positioning lug protruding from the outer periphery of the sealing portion.

10. A food processing machine with good sealing effect according to claim 9, characterized in that: The positioning lug is provided with a positioning hole, the heating plate is provided with a stud extending downward, the heat insulation sleeve is provided with a connecting hole axially aligned with the positioning hole, and the food processor also includes a connecting piece, which passes through the connecting hole and the positioning hole in sequence and is fastened to the stud.

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