Food processor capable of working stably

Abstract

The utility model discloses a food processor stable in work, and relates to the field of life electric appliances, the food processor comprises a main machine and a cup body assembly, the cup body assembly comprises a cup body and a tool apron, the tool apron comprises a heating disc and a heat insulation sleeve, and the heating disc and the heat insulation sleeve are connected through a connecting structure to form a containing cavity; the connecting structure is provided with the pressure relief channel communicated with the containing cavity and the outside, the overall structure of the tool apron is simplified, the step of forming an air hole in the heating disc or the heat insulation sleeve is omitted, meanwhile, the pressure relief channel can be formed at the connecting structure while the heating disc and the heat insulation sleeve are connected and matched, the production efficiency of the tool apron is improved, and the production cost is reduced. The situation that the stability of the tool apron structure is reduced due to the fact that air holes are formed is avoided, the overall strength of the tool apron is guaranteed, meanwhile, the extension path of the pressure relief channel at the connecting structure is bent, pressure relief and water resistance are achieved at the same time, compared with a waterproof air-permeable film, the situation that the tool apron structure is prone to damage and loses the waterproof effect is avoided, and the waterproof performance is guaranteed.

Description

Technical Field

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

[0002] The existing food processor usually includes a main unit and a cup body assembly, and the cup body assembly is provided with a stirring piece connected to the motor in the main unit. When the user uses the food processor to process food, the food is placed in the cup body assembly, and then the stirring piece is driven by the motor at high speed to realize the processing of 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 is heated by the heating plate. At the same time, in order to avoid the heat on the heating plate from being transferred to the main unit in large quantities, an insulation sleeve is arranged under the heating plate to separate the main unit from the heating plate. However, since the heating plate and the insulation sleeve are usually sealed, the heat generated by the heating plate during operation causes the internal gas to expand due to heat. In order to balance the air pressure inside and outside the cavity, for example, Chinese utility model patent CN216416947U discloses a food processor that is easy to clean, and a vent hole that passes through the bottom of the insulation sleeve is opened, and the vent hole is covered by a waterproof breathable film, so that the gas in the internal cavity can be discharged outward through the vent hole, and the waterproof breathable film is used to prevent external water stains from entering the cavity. Although the above scheme can achieve waterproof and breathable effects, in actual use, the waterproof and breathable membrane is relatively fragile and is easily damaged after long-term use, thereby losing its waterproof ability. In addition, the above structure is complex and requires additional holes to achieve pressure relief, which seriously affects assembly efficiency and has high production costs. Utility Model Content

[0003] The utility model aims to provide a food processing machine with stable operation, so as to solve the technical problems of complicated structure and poor stability of the pressure relief structure caused by the need to additionally set up a pressure relief structure in the existing food processing machine.

[0004] To achieve the above-mentioned purpose, the utility model provides a food processing machine with stable operation, including a main machine and a cup body assembly, the cup body assembly including a cup body with upper and lower openings and a knife seat arranged at the opening at the lower end of the cup body, the knife seat including a heating plate and a heat insulating sleeve arranged below the heating plate, the heating plate and the heat insulating sleeve are connected by a connecting structure to form a accommodating cavity, and the connecting structure is provided with a pressure relief channel connecting the accommodating cavity with the outside.

[0005] The present application forms a receiving cavity by connecting the heating plate and the heat-insulating sleeve through a connecting structure, so that the heating plate and the heat-insulating sleeve are firmly fixed through the connecting structure, and the stability of the connection and cooperation between the two is improved. At the same time, the connecting structure is provided with a pressure relief channel connecting the receiving cavity and the outside, so that when the food processor is working, the heat generated by the heating plate causes the internal gas to expand due to heat, and can be discharged outward through the pressure relief channel to ensure the pressure balance inside and outside. And compared with the existing method of setting a separate vent hole and setting a waterproof breathable membrane at the vent hole, on the one hand, the overall structure of the knife seat can be simplified, and the step of opening a vent hole on the heating plate or the heat-insulating sleeve is omitted. At the same time, when the heating plate and the heat-insulating sleeve are connected and matched, a pressure relief channel can be formed at the connecting structure, which helps to improve the production efficiency of the knife seat and reduce the production cost, and avoids the situation that the stability of the knife seat structure is reduced due to the opening of the vent hole, and ensures the overall strength of the knife seat; on the other hand, the extension path of the pressure relief channel at the connecting structure is relatively tortuous, and it can achieve waterproofing while achieving pressure relief. Compared with setting a waterproof breathable membrane, it avoids the situation that it is easy to be damaged and loses its waterproof function, ensures waterproof performance, and improves the stability of the whole machine.

[0006] In a preferred implementation of a food processor with stable operation, the connection structure includes a connection portion provided on the heating plate and a connection hole provided on the insulation sleeve, the connection structure also includes a connecting piece, the connecting piece passes through the connecting hole and is fastened to the connection portion, and the pressure relief channel includes a pressure relief groove provided between the connecting hole and the connecting piece.

[0007] By arranging the connection between the heating plate and the insulation sleeve as a connecting piece passing through the connecting hole and being fastened to the connecting part, the stability of the connection between the two is further improved through the fastening of the connecting piece, and the pressure relief channel includes a pressure relief groove arranged between the connecting hole and the connecting piece, so that after the connecting piece connects and fixes the heating plate and the insulation sleeve, a pressure relief groove is formed between the connecting hole and the connecting piece to achieve pressure relief, and the molding is more convenient and quick, which helps to further reduce the complexity of the installation structure and improve the assembly efficiency.

[0008] In a preferred implementation of a food processing machine with stable operation, the connecting part is a screw column, the heat insulation sleeve is provided with a mounting platform that cooperates with the screw column and is sunken, the connecting hole is formed on the mounting platform, the top surface of the mounting platform is provided with a first pressure relief groove connected to the accommodating cavity, and the bottom surface of the mounting platform is provided with a second pressure relief groove connected to the first pressure relief groove through the connecting hole, and the pressure relief grooves include a first pressure relief groove and a second pressure relief groove.

[0009] By setting the pressure relief groove to include the first pressure relief groove and the second pressure relief groove, after the connecting piece connects the heating plate to the heat insulation sleeve, a gap is formed between the screw column and the first pressure relief groove, and the first pressure relief groove is connected to the accommodating chamber, a gap is formed between the connecting piece and the second pressure relief groove, and the second pressure relief groove is connected to the outside, and at the same time, the first pressure relief groove and the second pressure relief groove are connected through the connecting hole, so that the gas in the accommodating chamber can be discharged to the outside after passing through the first pressure relief groove, the connecting hole and the second pressure relief groove, thereby ensuring smooth pressure relief. In addition, the connecting path of the first pressure relief groove, the connecting hole and the second pressure relief groove is relatively tortuous, so if external water stains flow into the accommodating chamber through the second pressure relief groove, it can be blocked by the bent path, effectively preventing water stains from entering the accommodating chamber, thereby improving the working stability of the whole machine.

[0010] In a preferred implementation of a food processing machine that operates stably, the pressure relief channel further includes a connecting groove that is arranged on a side wall of the connecting hole and connects the first pressure relief groove with the second pressure relief groove.

[0011] A connecting groove connecting the first pressure relief groove and the second pressure relief groove is provided on the side wall of the connecting hole, so that the gas in the accommodating chamber can be discharged outward through the first pressure relief groove, the connecting groove and the second pressure relief groove. This ensures that the connecting piece is tightly matched with the connecting hole to further improve the connection stability between the heating plate and the insulation sleeve, while also ensuring smooth exhaust.

[0012] In a preferred implementation of a food processing machine with stable operation, the pressure relief channel further includes a connecting piece that cooperates with the connecting hole to form a pressure relief gap connecting the first pressure relief groove and the second pressure relief groove.

[0013] By setting the connecting piece and the connecting hole to be clearance matched to form a pressure relief gap connecting the first pressure relief groove and the second pressure relief groove, the gas in the accommodating chamber can be discharged to the outside through the first pressure relief groove, then through the pressure relief gap, and then through the second pressure relief groove. In addition, the clearance match between the connecting piece and the connecting hole can realize the connection between the first pressure relief groove and the second pressure relief groove, and the structure is further simplified, which helps to further reduce the complexity of the overall structure and reduce production costs.

[0014] In a preferred implementation of a food processor with stable operation, a waterproof and breathable plug is provided at one end of the pressure relief channel close to the outside.

[0015] By providing a waterproof and breathable plug at the end cover of the pressure relief channel close to the outside world, on the one hand, the waterproof and breathable ability of the pressure relief channel can be further improved to prevent external water stains from entering the pressure relief channel and entering the accommodating chamber through the pressure relief channel; on the other hand, the waterproof and breathable plug blocks external stains, thereby ensuring the cleanliness of the pressure relief channel, effectively preventing the accumulation of dirt in the pressure relief channel that causes its exhaust to be reduced or even impossible to exhaust, thereby ensuring the stability of the pressure relief channel.

[0016] In a preferred implementation of a food processor with stable operation, the waterproof breathable plug is provided with a pressure relief seam, which is constructed to operate under the pressure difference between the pressure relief channel and the outside to switch from a closed state to an open state.

[0017] By providing the waterproof breathable plug with a pressure relief seam, and the pressure relief seam is constructed to operate under the pressure difference between the pressure relief channel and the outside world to switch from a closed state to an open state, the pressure relief seam can be opened to achieve pressure relief only when the pressure in the pressure relief channel is greater than the outside world, thereby further ensuring the waterproof and breathable ability of the waterproof breathable plug, avoiding the situation where the pressure relief seam is always open, causing external water stains to enter the pressure relief channel through it, and improving the waterproof performance.

[0018] In a preferred implementation of a food processing machine with stable operation, the knife seat also includes a stirring knife assembly that passes through the heating plate and the insulation sleeve, the stirring knife assembly includes a knife shaft and a bearing and a shaft seal that are sleeved on the outside of the knife shaft, the heating plate is provided with a surrounding plate that is arranged on the outside of the bearing and the shaft seal, the surrounding plate and the insulation sleeve cooperate to form a sealed installation cavity, the surrounding plate is provided with a pressure relief port, and the pressure relief port connects the installation cavity and the accommodating cavity.

[0019] By providing a pressure relief port on the enclosure, and connecting the installation chamber with the accommodating chamber, after the food processing machine is used for a long time, the heat generated by the high-speed rotation of the bearing and the knife shaft causes the gas in the installation chamber to expand, and then can be discharged into the accommodating chamber through the pressure relief hole, and then discharged to the outside through the pressure relief channel, thereby achieving pressure relief in the installation chamber, effectively avoiding the high pressure in the installation chamber causing the shaft seal to be lifted up, causing the internal lubricating oil to leak out, causing serious wear of the bearing or even jamming, thereby ensuring the smooth rotation of the bearing and helping to increase the service life of the bearing.

[0020] In a preferred implementation of a food processing machine with stable operation, the knife seat also includes a seal arranged between the enclosure and the insulation sleeve, the seal includes a first sealing portion clamped between the bottom end of the enclosure and the top wall of the insulation sleeve and a second sealing portion arranged around the outside of the enclosure, and the second sealing portion is provided with an exhaust port radially aligned with the pressure relief port.

[0021] By setting the knife seat to also include a seal between the apron and the heat insulation sleeve, the apron and the heat insulation sleeve can further improve the tightness of the connection and cooperation between the two with the help of the seal, effectively avoiding the lubricating oil in the installation cavity from overflowing outward, further ensuring the stability of the bearing rotation, and at the same time, with the help of the deformation performance of the seal, offset the error of the apron and the heat insulation sleeve during production and assembly, and further improve the assembly effect. In addition, the second sealing part is provided with an exhaust port radially aligned with the pressure relief port, so that the seal can achieve exhaust into the accommodating cavity through the exhaust port while achieving sealing, ensuring smooth exhaust, and avoiding the second sealing part blocking the pressure relief port, resulting in poor exhaust or even no exhaust.

[0022] In a preferred implementation of a food processing machine with stable operation, the heat insulating sleeve is provided with a rib extending upward and surrounding the outer side of the enclosure, and an exhaust gap connecting the pressure relief port and the accommodating cavity is formed between the rib and the enclosure.

[0023] By providing the heat insulation sleeve with a rib extending upward and surrounding the outer side of the enclosure, the heat insulation sleeve and the heating plate can be matched to improve the stability of the connection between the two through the limiting effect of the rib and the enclosure, avoiding lateral relative displacement between the two, and further improving the sealing effect of the installation cavity. At the same time, an exhaust gap connecting the pressure relief port and the accommodation cavity is formed between the rib and the enclosure, so that the rib can limit the enclosure and the exhaust gap to connect the pressure relief port with the outside world, ensuring the smoothness of the pressure relief of the installation cavity. 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 This is an exploded view of a knife holder in one embodiment of the utility model;

[0027] Figure 3 This is a schematic structural diagram of a heat insulation sleeve in one embodiment of the utility model;

[0028] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0029] Figure 5 This is a schematic structural diagram of the heat insulation sleeve at another angle in one embodiment of the utility model;

[0030] Figure 6 for Figure 5 Enlarged view of middle part B;

[0031] Figure 7 This is a schematic diagram of the structure of a waterproof breathable plug in one embodiment of the utility model;

[0032] Figure 8 A cross-sectional view of a knife holder in one embodiment of the utility model;

[0033] Fig. 9 for Figure 8 Enlarged view of part C in the middle.

[0034] List of parts and reference numerals:

[0035] 1-heating plate, 11-screw column, 12-enclosing plate; 2-insulating sleeve, 21-connecting hole, 22-mounting platform, 221-first pressure relief groove, 222-second pressure relief groove, 223-pressure relief gap, 23-enclosing reinforcement; 3-connecting piece; 4-waterproof breathable plug, 41-pressure relief seam; 5-bearing; 6-shaft seal; 7-seal. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] like Figures 1 to 9 As shown, the utility model provides a food processing machine with stable operation, 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 opening at the lower end of the cup body, the knife seat includes a heating plate 1 and a heat insulating sleeve 2 arranged below the heating plate 1, the heating plate 1 and the heat insulating sleeve 2 are connected by a connecting structure to form a accommodating cavity, and the connecting structure is provided with a pressure relief channel connecting the accommodating cavity with the outside.

[0039] The present application forms a receiving cavity by connecting the heating plate 1 and the heat insulating sleeve 2 through a connecting structure, so that the heating plate 1 and the heat insulating sleeve 2 are firmly fixed through the connecting structure, thereby improving the stability of the connection and cooperation between the two. At the same time, the connecting structure is provided with a pressure relief channel connecting the receiving cavity with the outside, so that when the food processor is working, the heat generated by the heating plate 1 causes the internal gas to expand due to heat, and can be discharged to the outside through the pressure relief channel, thereby ensuring the pressure balance inside and outside. Compared with the existing method of setting a separate air hole and setting a waterproof breathable membrane at the air hole, on the one hand, it can simplify the overall structure of the knife holder, eliminating the step of opening air holes on the heating plate 1 or the insulation sleeve 2, and at the same time, when the heating plate 1 is connected and matched with the insulation sleeve 2, a pressure relief channel can be formed at the connection structure, which helps to improve the production efficiency of the knife holder and reduce the production cost, and avoids the situation where the stability of the knife holder structure is reduced due to the opening of the air hole, thereby ensuring the overall strength of the knife holder; on the other hand, the extension path of the pressure relief channel at the connection structure is relatively tortuous, which can achieve waterproofing while achieving pressure relief. Compared with setting a waterproof breathable membrane, it avoids the situation where it is easily damaged and loses its waterproof effect, thereby ensuring the waterproof performance and improving the stability of the whole machine.

[0040] It should be noted that the present application does not specifically limit the connection structure. As a preferred implementation of the present application, Figure 2 As shown, the connection structure includes a connection portion provided on the heating plate 1 and a connection hole 21 provided on the insulation sleeve 2. The connection structure also includes a connection member 3, which passes through the connection hole 21 and is fastened to the connection portion. The pressure relief channel includes a pressure relief groove provided between the connection hole 21 and the connection member 3.

[0041] By arranging the connection between the heating plate 1 and the insulation sleeve 2 such that the connector 3 passes through the connecting hole 21 and is fastened to the connecting portion, the stability of the connection between the two is further improved through the fastening of the connector 3, and the pressure relief channel includes a pressure relief groove arranged between the connecting hole 21 and the connector 3, so that after the connector 3 connects and fixes the heating plate 1 and the insulation sleeve 2, a pressure relief groove is formed between the connecting hole and the connector to achieve pressure relief, and the molding is more convenient and quick, which helps to further reduce the complexity of the installation structure and improve the assembly efficiency.

[0042] Of course, the connection structure is not limited to the above-mentioned settings, it can also be a buckle and a slot provided on the heating plate 1 and the insulation sleeve 2, and the two are connected and fixed by the snap-fitting of the buckle and the slot. Preferably, the buckle is provided on the insulation sleeve 2, and the slot is provided on the heating plate 1. The buckle is hollow inside and open at both ends to form a pressure relief channel, which will not be repeated here.

[0043] Furthermore, if Figures 2 to 6As shown, the connecting part is a screw column 11, and the insulation sleeve 2 is provided with a mounting platform 22 which cooperates with the screw column 11 and is sunken. The connecting hole 21 is formed on the mounting platform 22, and the top surface of the mounting platform 22 is provided with a first pressure relief groove 221 which is connected to the accommodating cavity. The bottom surface of the mounting platform 22 is provided with a second pressure relief groove 222 which is connected to the first pressure relief groove 221 through the connecting hole 21. The pressure relief grooves include a first pressure relief groove 221 and a second pressure relief groove 222. Preferably, as a preferred embodiment under this embodiment, the connecting member 3 is a screw.

[0044] By setting the pressure relief groove to include the first pressure relief groove 221 and the second pressure relief groove 222, after the connector 3 connects the heating plate 1 to the heat insulation sleeve 2, a gap is formed between the screw column 11 and the first pressure relief groove 221, and the first pressure relief groove 221 is connected to the accommodating chamber, and a gap is formed between the connector 3 and the second pressure relief groove 222, and the second pressure relief groove 222 is connected to the outside, and at the same time, the first pressure relief groove 221 and the second pressure relief groove 222 are connected through the connecting hole 21, so that the gas in the accommodating chamber can be discharged to the outside after passing through the first pressure relief groove 221, the connecting hole 21 and the second pressure relief groove 222, thereby ensuring smooth pressure relief. In addition, the connecting path of the first pressure relief groove 221, the connecting hole 21 and the second pressure relief groove 222 is relatively tortuous, so if external water stains flow into the accommodating chamber through the second pressure relief groove 222, it can be blocked by the bent path, effectively preventing water stains from entering the accommodating chamber, thereby improving the working stability of the whole machine.

[0045] It should be further explained that the present application does not specifically limit the communication mode between the first pressure relief groove 221 and the second pressure relief groove 222 in this embodiment, which can be any one of the following embodiments:

[0046] Embodiment 1: In this embodiment, the pressure relief channel further includes a connecting groove which is arranged on the side wall of the connecting hole 21 and connects the first pressure relief groove 221 with the second pressure relief groove 222 .

[0047] A connecting groove connecting the first pressure relief groove 221 and the second pressure relief groove 222 is provided on the side wall of the connecting hole 21, so that the gas in the accommodating chamber can be discharged outward through the first pressure relief groove 221, the connecting groove and the second pressure relief groove 222. This ensures that the connecting piece 3 is tightly matched with the connecting hole 21 to further improve the connection and matching stability between the heating plate 1 and the insulation sleeve 2, while also ensuring smooth exhaust.

[0048] Example 2: Figure 8 , Fig. 9 As shown, in this embodiment, the pressure relief channel further includes a connection piece 3 and a connection hole 21 that are clearance-matched to form a pressure relief gap 223 that connects the first pressure relief groove 221 and the second pressure relief groove 222 .

[0049] By setting the connecting member 3 and the connecting hole 21 to be clearance-matched to form a pressure relief gap 223 connecting the first pressure relief groove 221 and the second pressure relief groove 222, the gas in the accommodating chamber can be discharged to the outside through the first pressure relief groove 221, the pressure relief gap 223, and the second pressure relief groove 222. The clearance match between the connecting member 3 and the connecting hole 21 can realize the connection between the first pressure relief groove 221 and the second pressure relief groove 222, and the structure is further simplified, which helps to further reduce the complexity of the overall structure and reduce production costs.

[0050] Of course, the pressure relief channel is not limited to the above-mentioned setting. It can also be a concave on the side wall of the connecting part 3 such as a screw to form a connecting groove connecting the first pressure relief groove 221 and the second pressure relief groove 222; and the second pressure relief groove 222 can also be formed on the top wall of the screw end cap, and the side wall of the screw is concave to form a connecting groove connecting the first pressure relief groove 221 and the second pressure relief groove 222, which will not be repeated here.

[0051] As a preferred implementation of the present application, Fig. 9 As shown, a waterproof and breathable plug 4 is provided at one end of the pressure relief channel close to the outside.

[0052] By providing a waterproof and breathable plug 4 at one end of the pressure relief channel close to the outside world, on the one hand, the waterproof and breathable ability of the pressure relief channel can be further improved to prevent external water stains from entering the pressure relief channel and entering the accommodating cavity through the pressure relief channel; on the other hand, the waterproof and breathable plug 4 blocks external stains, thereby ensuring the cleanliness of the pressure relief channel and effectively preventing the accumulation of dirt in the pressure relief channel that causes its exhaust to be reduced or even impossible to exhaust, thereby ensuring the stability of the pressure relief channel.

[0053] It should be noted that the present application does not specifically limit the structure of the waterproof breathable plug 4. As a preferred embodiment of the present application, Figure 7 As shown, the waterproof breathable plug 4 is provided with a pressure relief slit 41, and the pressure relief slit 41 is configured to operate under the pressure difference between the pressure relief channel and the outside to switch from a closed state to an open state.

[0054] By providing the waterproof breathable plug 4 with a pressure relief slit 41, and the pressure relief slit 41 is constructed to operate under the pressure difference between the pressure relief channel and the outside world to switch from a closed state to an open state, the pressure relief slit 41 can be opened to achieve pressure relief only when the pressure in the pressure relief channel is greater than that in the outside world, thereby further ensuring the waterproof and breathable ability of the waterproof breathable plug 4, avoiding the situation where the pressure relief slit 41 is always open, causing external water stains to enter the pressure relief channel through it, and improving the waterproof performance.

[0055] As a preferred implementation of the present application, Figure 8As shown, the blade holder also includes a stirring blade assembly that passes through the heating plate 1 and the insulation sleeve 2. The stirring blade assembly includes a blade shaft, a bearing 5 and a shaft seal 6 that are sleeved on the outside of the blade shaft. The heating plate 1 is provided with a surrounding plate 12 that is arranged on the outside of the bearing 5 and the shaft seal 6. The surrounding plate 12 cooperates with the insulation sleeve 2 to form a sealed installation cavity. The surrounding plate 12 is provided with a pressure relief port, which connects the installation cavity and the accommodating cavity.

[0056] By providing a pressure relief port on the enclosure 12, and the pressure relief port connecting the installation chamber and the accommodating chamber, after the food processing machine is used for a long time, the heat generated by the high-speed rotation of the bearing 5 and the knife shaft causes the gas in the installation chamber to expand, and then can be discharged into the accommodating chamber through the pressure relief hole, and then discharged to the outside through the pressure relief channel, thereby achieving pressure relief in the installation chamber, effectively avoiding the high pressure in the installation chamber causing the shaft seal 6 to be lifted up and causing the internal lubricating oil to leak out, causing serious wear of the bearing 5 or even jamming, thereby ensuring the smooth rotation of the bearing 5 and helping to increase the service life of the bearing 5.

[0057] As a preferred embodiment of this embodiment, Figure 8 As shown, the tool holder also includes a seal 7 arranged between the enclosure 12 and the insulation sleeve 2, the seal 7 includes a first sealing portion clamped between the bottom end of the enclosure 12 and the top wall of the insulation sleeve 2 and a second sealing portion arranged around the outside of the enclosure 12, and the second sealing portion is provided with an exhaust port radially aligned with the pressure relief port.

[0058] By setting the knife holder to also include a seal 7 disposed between the enclosure 12 and the heat insulation sleeve 2, the enclosure 12 and the heat insulation sleeve 2 can further improve the tightness of the connection and cooperation between the two with the help of the seal 7, effectively avoiding the situation where the lubricating oil in the installation cavity overflows outward, further ensuring the stability of the rotation of the bearing 5, and at the same time, with the help of the deformation performance of the seal 7, offset the error of the enclosure 12 and the heat insulation sleeve 2 during production and assembly, and further improve the assembly effect. In addition, the second sealing part is provided with an exhaust port radially aligned with the pressure relief port, so that the seal 7 can achieve exhaust into the accommodating cavity through the exhaust port while achieving sealing, ensuring smooth exhaust, and avoiding the situation where the second sealing part blocks the pressure relief port, resulting in poor exhaust or even no exhaust.

[0059] As a preferred embodiment of this embodiment, Figure 8 As shown, the heat insulation sleeve 2 is provided with a rib 23 extending upward and surrounding the outer side of the enclosure 12, and an exhaust gap connecting the pressure relief port and the accommodating cavity is formed between the rib 23 and the enclosure 12.

[0060] By providing the heat insulation sleeve 2 with the ribs 23 extending upward and surrounding the outer side of the enclosure 12, the heat insulation sleeve 2 and the heating plate 1 can be matched to improve the stability of the connection between the two through the limiting effect of the ribs 23 and the enclosure 12, avoiding the lateral relative displacement between the two, and further improving the sealing effect of the installation cavity. At the same time, an exhaust gap connecting the pressure relief port and the accommodating cavity is formed between the ribs 23 and the enclosure 12, so that the ribs 23 can limit the enclosure 12 while also enabling the exhaust gap to connect the pressure relief port with the outside world, thereby ensuring the smoothness of the pressure relief of the installation cavity.

[0061] 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 processing machine with stable operation, 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: The heating plate and the heat-insulating sleeve are connected via a connecting structure to form a containing cavity, and the connecting structure is provided with a pressure relief channel connecting the containing cavity with the outside.

2. A food processing machine with stable operation according to claim 1, characterized in that: The connection structure includes a connection portion provided on the heating plate and a connection hole provided on the thermal insulation sleeve. The connection structure also includes a connection piece, which passes through the connection hole and is fastened to the connection portion. The pressure relief channel includes a pressure relief groove provided between the connection hole and the connection piece.

3. A food processing machine with stable operation according to claim 2, characterized in that: The connecting part is a screw column, the heat insulation sleeve is provided with a mounting platform that cooperates with the screw column and is sunken, the connecting hole is formed on the mounting platform, the top surface of the mounting platform is provided with a first pressure relief groove connected with the accommodating cavity, and the bottom surface of the mounting platform is provided with a second pressure relief groove connected with the first pressure relief groove through the connecting hole, and the pressure relief grooves include the first pressure relief groove and the second pressure relief groove.

4. A food processing machine with stable operation according to claim 3, characterized in that: The pressure relief channel further includes a connecting groove provided on the side wall of the connecting hole and connecting the first pressure relief groove and the second pressure relief groove.

5. A food processing machine with stable operation according to claim 3, characterized in that: The pressure relief channel also includes the connecting member and the connecting hole, which are gap-matched to form a pressure relief gap connecting the first pressure relief groove and the second pressure relief groove.

6. A food processing machine with stable operation according to claim 1, characterized in that: An end cover of the pressure relief channel close to the outside is provided with a waterproof and breathable plug.

7. A food processing machine with stable operation according to claim 6, characterized in that: The waterproof breathable plug is provided with a pressure relief seam, and the pressure relief seam is configured to operate under the pressure difference between the pressure relief channel and the outside to switch from a closed state to an open state.

8. A food processing machine with stable operation according to claim 1, characterized in that: The blade holder also includes a stirring blade assembly that passes through the heating plate and the insulation sleeve. The stirring blade assembly includes a blade shaft, a bearing sleeved on the outside of the blade shaft, and a shaft seal. The heating plate is provided with a surrounding plate that surrounds the outside of the bearing and the shaft seal. The surrounding plate cooperates with the insulation sleeve to form a sealed installation cavity. The surrounding plate is provided with a pressure relief port, and the pressure relief port connects the installation cavity and the accommodating cavity.

9. A food processing machine with stable operation according to claim 8, characterized in that: The tool holder also includes a seal arranged between the enclosure and the insulation sleeve, the seal includes a first sealing portion clamped between the bottom end of the enclosure and the top wall of the insulation sleeve and a second sealing portion arranged around the outside of the enclosure, the second sealing portion is provided with an exhaust port radially aligned with the pressure relief port.

10. A food processing machine with stable operation according to claim 8, characterized in that: The heat insulation sleeve is provided with a rib extending upward and surrounding the outer side of the enclosure, and an exhaust gap connecting the pressure relief port and the accommodating cavity is formed between the rib and the enclosure.

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