Food processor with good waterproof effect

Abstract

The utility model discloses a food processor with a good waterproof effect, which relates to the field of life electric appliances and comprises a main machine and a detachable cup body assembly arranged above the main machine, an upper coupler is arranged at the bottom of the cup body assembly, and the main machine is provided with a lower coupler matched with the upper coupler in an inserted mode. The lower coupler comprises a shell for accommodating the insertion spring, a top cover covering the upper part of the shell and a sealing gasket arranged between the top cover and the shell, the sealing gasket is provided with a first insertion hole which is used for the insertion pin of the upper coupler to pass through and is provided with an elastic sealing part, the shell is provided with a second insertion hole which is axially aligned with the first insertion hole, and a buffer pad is clamped between the sealing gasket and the shell; the buffer pad is provided with an avoiding hole axially aligned with the first jack, and the projection of the avoiding hole on the horizontal plane falls into the projection of the second jack on the horizontal plane, so that the pin drives the elastic sealing part at the first jack to move downwards, and the elastic sealing part can abut against the buffer pad when the end of the elastic sealing part faces downwards. And the flexible contact with the buffer cushion is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of life electric appliances, and particularly relates to a food processor with good waterproof effect. BACKGROUND

[0002] The existing food processor usually comprises a main machine and a cup body assembly detachably arranged above the main machine. When a user uses the food processor to process food materials, the food materials are placed in the cup body, and a stirring element in the cup body rotates at high speed under the driving of a motor to realize the processing of the food materials. In order to realize the transmission of power and signals to each electrical component such as a heating structure and a temperature measuring structure on the cup body assembly, a lower coupler is usually arranged at the bottom of the cup body assembly, and an upper coupler that is plugged and matched with the lower coupler is arranged on the main machine. The transmission of power and signals is realized through the plugging and matching of the upper and lower couplers. However, during the use of the food processor, when too much material or water is placed, overflow may occur during the working process. The overflowed water flows to the lower coupler, flows along the surface of the lower coupler to the conductive component in the coupler, and brings the risk of electric shock. In order to realize the waterproof of the lower coupler, a sealing gasket is arranged between the top cover of the lower coupler and the shell, and a cutout for the plug of the upper coupler to pass through is arranged on the sealing gasket, so as to realize the waterproof of the lower coupler. However, when the upper and lower couplers are coupled, in order to make the plugging more convenient and smooth, a certain tolerance gap needs to be designed at the contact part of the couplers. Usually, the outer diameter of the plug of the upper coupler is designed to be smaller than the inner diameter of the insertion hole of the sealing gasket and the shell. This will cause the upper and lower couplers not to be ideally concentrically coupled when they are plugged. The plug will move the part of the cutout of the sealing gasket downward and bring it to the shell of the lower coupler during the downward insertion of the plug, causing the cutout of the sealing gasket to collide with the shell. Since the plug is usually a metal part, the cutout of the sealing gasket will be extruded before the plug and the shell, especially the sharp edge of the insertion hole, causing the cutout of the sealing gasket to be damaged, and further causing the sealing gasket to fail to seal and leak water into the lower coupler, finally causing the lower coupler to fail to work, which seriously affects the user experience. SUMMARY

[0003] The utility model aims at providing a food processor with good waterproof effect, which solves the problem that the plug of the upper coupler moves the cutout of the sealing gasket downward and directly extrudes the shell, especially the edge of the insertion hole, causing the sealing gasket to be damaged, and further causing the sealing gasket to fail to seal and leak water.

[0004] To achieve the above object, the utility model provides a food processing machine with good waterproof effect, cup body component is detachable and is arranged above host computer, the bottom of cup body component is equipped with upper coupling ware, host computer is equipped with lower coupling ware of upper coupling ware plug in cooperation, lower coupling ware includes the shell of accommodating spring, the top cover of cover cup body component top and the sealing washer of being equipped with between top cover and shell, sealing washer is equipped with first insertion hole of the insertion needle of upper coupling ware passes through and has elastic sealing portion, the shell is equipped with the second insertion hole of first insertion hole axial alignment, still hold buffer pad between sealing washer and shell, buffer pad is equipped with the avoiding hole of first insertion hole axial alignment, the projection of avoiding hole falls into the projection of second insertion hole on the horizontal plane.

[0005] The utility model discloses through being equipped with upper coupling ware in cup body component bottom, host computer is equipped with lower coupling ware of upper coupling ware plug in cooperation, so that cup body component can realize power transmission through the coupling of upper coupling ware and lower coupling ware after cup body component is assembled in place with host computer, guarantee that the electric appliance part in cup body component can normally work.

[0006] Meanwhile still hold buffer pad between sealing washer and shell, buffer pad is equipped with the avoiding hole of first insertion hole axial alignment, the projection of avoiding hole falls into the projection of second insertion hole on the horizontal plane, so that the insertion needle of upper coupling ware inserts down to lower coupling ware, and the elastic sealing portion at first insertion hole is driven down, and when the end of elastic sealing portion is down, can abut on buffer pad, realizes the flexible contact with buffer pad by the characteristics of buffer pad, thereby realizes the protection effect of elastic sealing portion, effectively avoids the damage of elastic sealing portion when the insertion needle is directly extruded in the edge of shell especially second insertion hole when driving elastic sealing portion down, further causes the invalid condition of the sealing waterproof effect of elastic sealing portion, guarantee the sealing effect of elastic sealing portion.

[0007] In a preferred implementation of the food processor with good waterproof effect, the second jack is provided with a buffer surface extending downward at the top edge of the second jack.

[0008] By providing the buffer surface extending downward at the top edge of the second jack, when the pin drives the elastic sealing portion to move downward and is pressed against the buffer pad, the buffer pad at the avoiding opening can also be driven to move downward and contact the buffer surface. On the one hand, the buffer pad can be protected from being damaged by directly abutting against the second jack when being driven to move downward for a long time, thereby prolonging the service life of the buffer pad. On the other hand, the pin can slide to the second jack under the guidance of the buffer surface when moving downward, thereby improving the matching efficiency of the upper coupler and the lower coupler.

[0009] In a preferred implementation of the food processor with good waterproof effect, the angle θ between the buffer surface and the horizontal plane satisfies 15°≤θ≤60°.

[0010] By setting the angle θ between the buffer surface and the horizontal plane to satisfy 15°≤θ≤60°, the buffer surface can play a buffering role to avoid the buffer pad from being hit hard when the angle between the buffer surface and the horizontal plane is too small. Meanwhile, the connection between the buffer surface and the top surface of the shell can not be bent too much when the angle between the buffer surface and the horizontal plane is too large, thereby preventing the buffer pad from being damaged when being pressed downward.

[0011] In a preferred implementation of the food processor with good waterproof effect, the top wall of the shell is provided with a downward recessed annular groove at the second jack, and the buffer pad is provided with an annular rib matched with the annular groove.

[0012] By providing the top wall of the shell with the downward recessed annular groove at the second jack and the buffer pad with the annular rib matched with the annular groove, the buffer pad can be limited by the cooperation of the annular groove and the annular rib, thereby ensuring the stability of the position of the buffer pad and preventing the avoiding opening from being misaligned with the second jack due to the movement of the buffer pad, which can prevent the pin from directly pressing the elastic sealing portion against the shell when moving downward, thereby further protecting the elastic sealing portion.

[0013] In a preferred implementation of the food processor with good waterproof effect, the maximum length of the elastic sealing portion is not greater than the distance from the bottom wall of the elastic sealing portion to the top wall of the shell.

[0014] By setting the maximum length of the elastic sealing part to be not greater than the distance from the bottom wall of the elastic sealing part to the top wall of the shell, when the pin moves downward and drives the elastic sealing part to move downward, the bottom end of the elastic sealing part will not contact the top wall of the shell, thereby further avoiding the situation that the elastic sealing part is directly pressed on the shell, and further achieving the protection effect of the elastic sealing part.

[0015] In a preferred implementation of the food processor with good waterproof effect, the top cover and / or the shell are further provided with a limiting structure for limiting the sealing gasket and the buffer gasket.

[0016] By setting the limiting structure for limiting the sealing gasket and the buffer gasket, the stability of the positions of the sealing gasket and the buffer gasket is ensured, effectively avoiding the displacement of the sealing gasket and the buffer gasket after long-term use, causing the axial misalignment of the first jack, the second jack, and the avoiding hole, resulting in the situation that the pin is stuck or even cannot be inserted in place when inserted, and simultaneously avoiding the situation that the buffer gasket is easily displaced, causing the misalignment of the avoiding hole and the second jack, resulting in the situation that the pin drives the elastic sealing part to be directly pressed on the shell when moving downward, thereby further achieving the protection effect of the elastic sealing part.

[0017] In a preferred implementation of the food processor with good waterproof effect, the limiting structure includes a limiting column extending downward from the bottom wall of the top cover and a limiting groove provided on the top wall of the shell and inserted and matched with the limiting column, and the limiting column sequentially passes through the sealing gasket and the buffer gasket and is inserted into the limiting groove.

[0018] By setting the limiting structure to include a limiting column extending downward from the bottom wall of the top cover and a limiting groove provided on the top wall of the shell and inserted and matched with the limiting column, when the lower coupler is assembled, the buffer gasket is assembled on the shell, and then the sealing gasket is assembled on the buffer gasket, and finally the top cover is pressed onto the shell, the alignment of the top cover, the sealing gasket, the buffer gasket, and the shell is achieved through the cooperation of the limiting column and the limiting groove, which not only can limit the sealing gasket and the buffer gasket, but also can ensure the axial alignment of the components of the lower coupler, thereby improving the smoothness when the upper coupler and the lower coupler are inserted and improving the user experience.

[0019] In a preferred implementation of the food processor with good waterproof effect, the limiting structure includes a positioning column extending upward from the top wall of the shell, and the buffer gasket is provided with a positioning groove matched with the positioning column, and the positioning column passes through the buffer gasket and extends into the positioning groove.

[0020] By setting the limiting structure as including the positioning column extending upward from the top wall of the shell, the buffer pad is provided with the positioning groove matched with the positioning column, so that when the lower coupler is assembled, the buffer pad is first aligned with the shell and the positioning column passes through the buffer pad, and then the sealing pad is aligned with the buffer pad and installed above the buffer pad, and at the same time, the positioning column and the positioning groove realize limiting matching, so as to realize the limiting effect of the positioning column on the buffer pad and the sealing pad, and ensure the positional stability of the two.

[0021] In a preferred implementation of the food processor with good waterproof effect, the cross section of the lower coupler in the transverse direction is rectangular, and the four corners of the lower coupler side wall in the circumferential direction are round.

[0022] By setting the four corners of the lower coupler side wall in the circumferential direction as round, compared with the existing rectangular setting, not only the occupied space of the lower coupler can be reduced, but also the structure in the main machine is more compact, and the insertion of the upper coupler into the lower coupler is more smooth, which helps to improve the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0024] Figure 1 is a sectional view of the insertion of the upper coupler and the lower coupler in an embodiment of the present application;

[0025] Figure 2 is Figure 1 is an enlarged view of part A in the embodiment of the present application;

[0026] Figure 3 is a partial enlarged view of the lower coupler in an embodiment of the present application;

[0027] Figure 4 is an exploded view of the lower coupler in an embodiment of the present application;

[0028] Figure 5 is a structural schematic view of the buffer pad in an embodiment of the present application;

[0029] Figure 6 is a structural schematic view of the sealing pad in an embodiment of the present application;

[0030] Figure 7 is a top view of the lower coupler in an embodiment of the present application.

[0031] List of components and reference numerals:

[0032] 1 - upper coupling, 11 - pin; 2 - sealing gasket, 21 - elastic sealing portion; 3 - top cover, 31 - limiting column; 4 - buffer pad, 41 - avoiding hole, 42 - annular rib; 5 - shell, 51 - second jack, 52 - buffer surface, 53 - annular groove; 6 - spring. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the overall concept of the utility model, the following will be combined with the description of the drawings in an exemplary manner to be described in detail.

[0034] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0035] As Figures 1 to 7 indicated, the utility model provides a food processor with good waterproof effect, including host computer and detachable cup body assembly above host computer, cup body assembly bottom is equipped with upper coupling 1, host computer is equipped with lower coupling with upper coupling 1 insertion joint cooperation, lower coupling includes accommodating spring 6's shell 5, cover is equipped with top cover 3 above shell 5 and is equipped with sealing gasket 2 between top cover 3 and shell 5, sealing gasket 2 is equipped with the first jack of the pin 11 of upper coupling 1 passes through and has elastic sealing portion 21, shell 5 is equipped with the second jack 51 with the axial alignment of first jack, sealing gasket 2 and shell 5 between still hold buffer pad 4, buffer pad 4 is equipped with the avoiding hole 41 with the axial alignment of first jack, avoiding hole 41 projection on horizontal plane falls into the projection of second jack 51 on horizontal plane.

[0036] The application is equipped with upper coupling 1 in cup body assembly bottom, host computer is equipped with lower coupling with upper coupling 1 insertion joint cooperation, so that cup body assembly is assembled in place with host computer, the electrical component on cup body assembly can realize the transmission of power through the coupling of upper coupling 1 and lower coupling, guarantee that the electrical component in cup body assembly can work normally. Meanwhile lower coupling includes accommodating spring 6's shell 5, cover is equipped with top cover 3 above shell 5 and is equipped with sealing gasket 2 between top cover 3 and shell 5, and sealing gasket 2 is equipped with the first jack of the pin 11 of upper coupling 1 passes through and has elastic sealing portion 21, shell 5 is equipped with the second jack 51 with the axial alignment of first jack, so that upper coupling 1 and lower coupling are inserted and cooperated, first pass through first jack and then pass through second jack 51 to realize insertion joint with spring 6, the setting of elastic sealing portion 21 can realize the sealing of lower coupling when not inserted, effectively avoid the case that water stain etc. enters into shell 5 through first jack and second jack 51 and causes lower coupling to be damaged by damp, realize the protection effect of lower coupling.

[0037] Meanwhile, the buffer pad 4 is clamped between the sealing gasket 2 and the shell 5, and the buffer pad 4 is provided with a relief hole 41 axially aligned with the first jack, and the projection of the relief hole 41 on the horizontal plane falls within the projection of the second jack 51 on the horizontal plane, so that when the pin 11 of the upper coupler 1 is inserted downward to the lower coupler, the pin 11 drives the elastic sealing part 21 at the first jack to move downward, and the end of the elastic sealing part 21 can abut against the buffer pad 4 when the end of the elastic sealing part 21 moves downward, and the buffer pad 4 is flexibly contacted with the buffer pad 4 by the characteristics of the buffer pad 4, so as to realize the protection of the elastic sealing part 21, effectively avoid the damage of the elastic sealing part 21 caused by the direct extrusion of the pin 11 on the edge of the shell 5, especially the edge of the second jack 51 when the pin 11 drives the elastic sealing part 21 to move downward, and further cause the sealing and waterproof effect of the elastic sealing part 21 to fail, thereby ensuring the sealing effect of the elastic sealing part 21. In addition, even if the user inserts and cooperates the upper coupler 1 and the lower coupler, even if there is a certain lateral offset between the upper coupler 1 and the lower coupler, the end of the pin 11 can extrude on the buffer pad 4 when the end of the pin 11 drives the elastic sealing part 21 to move downward, and the relief hole 41 on the buffer pad 4 realizes the guiding effect of the pin 11, so that the pin 11 can be smoothly inserted into the second jack 51, and the insertion and cooperation can be realized without precise alignment of the upper coupler 1 and the lower coupler, thereby improving the installation efficiency.

[0038] As a preferred embodiment of the present application, as shown in Figure 2 、 Figure 3 , the top edge of the second jack 51 is provided with a buffer surface 52 extending downward and downward.

[0039] By providing the buffer surface 52 extending downward and downward at the top edge of the second jack 51, when the pin 11 drives the elastic sealing part 21 to move downward and extrude on the buffer pad 4, the buffer pad 4 at the relief hole can also be driven to move downward and contact with the buffer surface 52. On the one hand, it can avoid the direct abutment of the buffer pad 4 at the second jack 51 when the buffer pad 4 is driven to move downward, which can cause the buffer pad 4 to be extruded and damaged for a long time, thereby realizing the protection of the buffer pad 4 and helping to prolong the service life thereof. On the other hand, the pin 11 can slide to the second jack 51 by the guiding effect of the buffer surface 52 when the pin 11 moves downward, which can improve the cooperation efficiency of the upper coupler 1 and the lower coupler.

[0040] It should be noted that the inclination angle of the buffer surface 52 is not limited in the present application, and as a preferred embodiment of the present application, as shown in Figure 2 , the angle θ between the buffer surface 52 and the horizontal plane satisfies: 15°≤θ≤60°.

[0041] By setting the included angle θ between the buffer surface 52 and the horizontal plane to satisfy 15°≤θ≤60°, it is avoided that the buffer surface 52 does not play a buffering role due to the included angle between the buffer surface 52 and the horizontal plane being too small, so that the buffer pad 4 still has a large impact; at the same time, it is avoided that the connection between the buffer surface 52 and the top surface of the shell 5 has a large bending due to the included angle between the buffer surface 52 and the horizontal plane being too large, so that the buffer pad 4 is easily damaged when abutting at the connection during downward extrusion.

[0042] As a preferred embodiment of the present application, as shown in Figure 2 、 Figure 3 , the top wall of the shell 5 is provided with a downwardly recessed annular groove 53 at the second insertion hole 51, and the buffer pad 4 is provided with an annular rib 42 adapted to the annular groove 53.

[0043] By providing the top wall of the shell 5 with a downwardly recessed annular groove 53 at the second insertion hole 51, and the buffer pad 4 with an annular rib 42 adapted to the annular groove 53, the buffer pad 4 can be limited by the cooperation of the annular groove 53 and the annular rib 42, ensuring the stability of the position of the buffer pad 4, avoiding the dislocation of the buffer pad 4 and the second insertion hole 51, so that the elastic sealing portion 21 is directly extruded on the shell 5 when the contact pin 11 moves downward, further achieving the protection of the elastic sealing portion 21.

[0044] As a preferred embodiment of the present application, as shown in Figure 2 、 Figure 3 , the maximum length of the elastic sealing portion 21 is not greater than the distance from the bottom wall of the elastic sealing portion 21 to the top wall of the shell 5.

[0045] By setting the maximum length of the elastic sealing portion 21 to be not greater than the distance from the bottom wall of the elastic sealing portion 21 to the top wall of the shell 5, when the contact pin 11 moves downward and drives the elastic sealing portion 21 to move downward, the bottom end of the elastic sealing portion 21 will not contact the top wall of the shell 5, thereby further avoiding the case that the elastic sealing portion 21 is directly extruded on the shell 5, further achieving the protection of the elastic sealing portion 21.

[0046] As a preferred embodiment of the present application, as shown in Figure 4 , the top cover 3 and / or the shell 5 further has a limiting structure for limiting the sealing pad 2 and the buffer pad 4.

[0047] By setting a limiting mechanism to limit the position of the sealing gasket 2 and the buffer gasket 4, the stability of the position of the sealing gasket 2 and the buffer gasket 4 is ensured, effectively preventing the sealing gasket 2 and the buffer gasket 4 from shifting after long-term use, which would cause the first insertion hole, the second insertion hole 51 and the clearance hole 41 to be misaligned axially, resulting in the insertion pin 11 getting stuck or even unable to be inserted. At the same time, it avoids the buffer gasket 4 from easily moving, causing the clearance hole and the second insertion hole 51 to misalign, which would cause the insertion pin 11 to move downward and drive the elastic sealing part 21 to directly press against the housing 5, thus further realizing the protection of the elastic sealing part 21.

[0048] It should be noted that this application does not specifically limit the limiting structure, which can be any of the following embodiments:

[0049] Example 1: As Figure 4 As shown, in this embodiment, the limiting structure includes a limiting post 31 extending downward from the bottom wall of the top cover 3 and a limiting groove provided on the top wall of the housing 5 and inserted into the limiting post 31. The limiting post 31 passes through the sealing gasket 2 and the buffer gasket 4 in sequence and is inserted into the limiting groove.

[0050] By setting the limiting structure to include a limiting post 31 extending downward from the bottom wall of the top cover 3 and a limiting groove located on the top wall of the housing 5 and engaging with the limiting post 31, the buffer pad 4 and the housing 5 are aligned and assembled during the assembly of the lower coupler. Then, the sealing pad 2 and the buffer pad 4 are aligned and assembled. Finally, the top cover 3 is pressed onto the housing 5. The alignment of the top cover 3, the sealing pad 2, the buffer pad 4, and the housing 5 is achieved through the cooperation of the limiting post 31 and the limiting groove. This not only limits the sealing pad 2 and the buffer pad 4 but also ensures the axial alignment of the components of the lower coupler, thereby improving the smoothness of the connection between the upper coupler 1 and the lower coupler and enhancing the user experience.

[0051] Example 2: In this example, the limiting structure includes a positioning post extending upward from the top wall of the housing 5, and the buffer pad 4 is provided with a positioning groove that cooperates with the positioning post. The positioning post passes through the buffer pad 4 and extends into the positioning groove.

[0052] By setting the limiting structure to include a positioning post extending upward from the top wall of the housing 5, and the buffer pad 4 having a positioning groove that mates with the positioning post, when assembling the lower coupler, the buffer pad 4 is first aligned with the housing 5 and the positioning post passes through the buffer pad 4, and then the sealing gasket 2 is aligned with the buffer pad 4 and installed above the buffer pad 4. At the same time, the positioning post and the positioning groove achieve a limiting engagement, so as to realize the limiting effect of the positioning post on the buffer pad 4 and the sealing gasket 2, and ensure the positional stability of both.

[0053] It should be noted that this application does not specifically limit the structure of the lower coupler. As one preferred embodiment of this application, such as...Figure 4 , Figure 7 As shown, the lower coupler has a rectangular cross-section in the horizontal direction, and the four corners of the lower coupler sidewall in the circumferential direction are rounded.

[0054] By rounding the four corners of the lower coupler's sidewall circumference, compared to the existing rectangular design, not only can the space occupied by the lower coupler be reduced, making the structure inside the host more compact, but it is also smoother to insert the upper coupler 1 into the lower coupler, which helps to improve assembly efficiency.

[0055] Furthermore, such as Figure 7 As shown, the radius R of the fillet and the short side B of the cross section of the lower coupler in the lateral direction satisfy B / 4≤R≤B / 2. More preferably, R=B / 3 or B / 4, so as to minimize the space occupied by the lower coupler.

[0056] 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 processor with good waterproof effect, comprising a main machine and a cup body assembly which is detachably arranged above the main machine, characterized in that, The cup body assembly is provided with an upper coupling device, and the main machine is provided with a lower coupling device which is inserted and matched with the upper coupling device.

2. The food processor of claim 1, wherein, The second insertion hole is provided with an avoiding hole which is axially aligned with the first insertion hole, and the projection of the avoiding hole on the horizontal plane falls within the projection of the second insertion hole on the horizontal plane.

3. The food processor of claim 2, wherein, The buffer surface is inclined downward.

4. The food processor of claim 1, wherein, The angle θ between the buffer surface and the horizontal plane satisfies 15°≤θ≤60°.

5. The food processor of claim 1, wherein, The top wall of the shell is provided with a downwardly recessed annular groove at the second insertion hole.

6. The food processor of claim 1, wherein, The maximum length of the elastic sealing part is not greater than the distance from the bottom wall of the elastic sealing part to the top wall of the shell.

7. The food processor of claim 6, wherein, The top cover and / or the shell are further provided with a limiting structure which limits the sealing pad and the buffer pad.

8. The food processor of claim 6, wherein, The limiting structure includes a limiting column which extends downward from the bottom wall of the top cover and a limiting groove which is provided on the top wall of the shell and is inserted and matched with the limiting column.

9. The food processor of claim 1, wherein, The limiting structure includes a positioning column which extends upward from the top wall of the shell, and the sealing pad is provided with a positioning groove which is matched with the positioning column.

10. The food processor of claim 9, wherein, The cross section of the lower coupling device in the transverse direction is rectangular, and the four corners of the side wall of the lower coupling device in the circumferential direction are provided with rounded corners. The radius R of the rounded corner and the short side B of the cross section of the lower coupling device in the transverse direction satisfy B / 4≤R≤B / 2.

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