Food processor

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly relates to a food processor which comprises a main machine, a stirring cup installed on the main machine and a sound insulation cover installed above the main machine to cover the stirring cup. An exhaust port and an exhaust plug mounted at the exhaust port are arranged in the middle of the top wall; the outer cover surrounds the periphery of the inner cover, a sound insulation cavity is defined by the outer cover and the inner cover, an opening is formed in the top end of the outer cover, and the bottom end of the outer cover is connected with the inner cover; the top cover covers the opening and is provided with a central opening, the top cover extends inwards from the outer cover to be connected with the top wall of the inner cover, and the exhaust port and the exhaust plug are exposed from the central opening. The inner cover and the outer cover are reliably connected through the top cover, so that the distance between the inner cover and the outer cover is stable, the structure of the sound insulation cavity is stable, gas exhausted from the exhaust port or the exhaust plug channel cannot enter the sound insulation cavity, and the problems that visualization is affected by condensate water generated in the sound insulation cavity and the sound insulation cover is deformed are solved.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a food processing machine. Background Technology

[0002] To reduce noise during the operation of blenders, existing blenders commonly use soundproof covers to insulate the blending cup from the outside environment, reducing noise along the transmission path and improving the user experience. However, typical soundproof covers are usually single-layered and have limited noise reduction effects.

[0003] Existing technologies also disclose some double-layer soundproof covers. For example, a noise reduction structure for a blender includes a base and a mixing cup. A soundproof cover assembly is provided on the base, and the mixing cup is placed in the cavity enclosed by the soundproof cover assembly and the base. The soundproof cover assembly includes an inner soundproof cover and an outer soundproof cover. A soundproof layer with a stable width is formed between the inner and outer soundproof covers, making the soundproof cover assembly more stable and reliable.

[0004] In this design, the top wall of the outer soundproof cover is partially blocked above the top wall of the inner soundproof cover. The inner soundproof cover has a lower opening corresponding to the exhaust sleeve of the cup lid, and the outer soundproof cover has an upper opening corresponding to the lower opening. The upper opening accommodates the cover (i.e., the exhaust plug). In addition, the outer and inner soundproof covers are directly fixed by fastening units. A fitting gap will be formed at the upper support joint point between the outer and inner soundproof covers. This fitting gap is located close to the exhaust sleeve, which causes the gas discharged from the stirring cup to directly enter the sound insulation layer between the outer and inner soundproof covers through the fitting gap. This not only causes condensation to form in the sound insulation layer, which is difficult to clean and affects the visibility of the soundproof cover, but also the gas in the sound insulation layer will expand and contract with temperature. When the gas expands due to heat, it may cause the soundproof cover to deform. Utility Model Content

[0005] This utility model provides a food processing machine based on a soundproof cover with an inner cover and an outer cover, which solves the problem in the prior art that gas discharged from the mixing cup will enter the soundproof cavity between the inner cover and the outer cover, causing condensation or deformation of the soundproof cover.

[0006] The technical solution adopted by this utility model is as follows: This utility model provides a food processing machine, including a main unit, a mixing cup installed on the main unit, and a soundproof cover installed above the main unit to cover the mixing cup. The soundproof cover includes: an inner cover having a top wall and side walls, the top wall covering the mixing cup, and a vent and a vent plug installed at the vent in the middle of the top wall; an outer cover surrounding the outer periphery of the inner cover and forming a soundproof cavity with the inner cover, the top of the outer cover having an opening, and the bottom of the outer cover being connected to the bottom of the inner cover; and a top cover covering the opening, the top cover having a central opening, the top cover extending inward from the outer cover to connect with the top wall of the inner cover, and the vent and the vent plug being exposed from the central opening.

[0007] This utility model provides a food processing machine, including an inner cover, an outer cover, and a top cover. The inner cover provides multi-directional protection to the top and sides of the mixing cup through its top and side walls. The outer cover surrounds the outer periphery of the inner cover and forms a sound-insulating cavity with it. Noise propagation is reduced due to energy dissipation in the sound-insulating cavity and the double obstruction by the inner and outer covers. An exhaust port and a vent plug are provided in the middle of the top wall of the inner cover to regulate the venting of the mixing cup, preventing excessive pressure inside the mixing cup and ensuring safe use. By providing an opening at the top of the outer cover and having a top cover extend inward from the outer cover to connect with the top wall of the inner cover, the top cover is installed above the opening of the outer cover. This reliably connects the inner and outer covers, and the bottom of the outer cover is connected to the bottom of the inner cover. This stabilizes the distance between the side walls of the inner cover and the outer cover, ensuring a stable sound insulation cavity structure. Furthermore, the connection between the top cover and the inner cover reduces the extension of the sound insulation cavity towards the center of the inner cover, thus increasing the distance between the sound insulation cavity and the exhaust port. This design avoids the situation in existing technologies where the outer cover completely obscures the inner cover and creates a gap near the exhaust port. This prevents the gas discharged from the exhaust port or exhaust plug channel from entering the soundproof cavity. At the same time, the exhaust port and exhaust plug are exposed from the central opening, allowing the gas in the stirring cup to be directly discharged upwards to the outside through the exhaust port or exhaust plug channel, quickly merging with the outside air without entering the soundproof cavity. Therefore, it avoids the problems of condensation in the soundproof cavity affecting visibility and deformation of the soundproof cover.

[0008] In a preferred embodiment, the top cover is provided with a first fixing part that is fixedly connected to the outer cover and a second fixing part that is fixedly connected to the inner cover.

[0009] By providing a first fixing part and a second fixing part on the top cover, during assembly, the first fixing part can be used to fix the inner cover to form a combined module, and then the outer cover can be fitted over the inner cover and fixed with the inner cover using the second fixing part to form a soundproof cover; or the second fixing part can be used to fix the inner cover to form a combined module, and then the combined module can be fitted over the outer cover and fixed with the outer cover using the first fixing part to form a soundproof cover. Assembly is convenient, alignment is easy, and the fixing positions of the two fixing parts do not interfere with each other. The distance between the inner cover sidewall and the outer cover is stable, and the soundproof cavity structure is stable, preventing deformation of the inner or outer cover during assembly.

[0010] More preferably, the first fixing part includes a buckle, and the top of the outer cover is provided with a slot for engaging with the buckle;

[0011] Alternatively, the second fixing part includes a downwardly extending stud, and the top wall of the inner cover is provided with a through hole, through which a fastener is locked to the stud.

[0012] By setting the first fixing part as a snap-fit ​​and providing a slot at the top of the outer cover, the fixing is simple, achieving reliable fixation between the outer cover and the top cover while avoiding exposure of the fixing parts and maintaining the integrity of the appearance. By setting the second fixing part as a stud, the fastener passes through the perforation of the inner cover and locks into the stud, making the fixation between the top cover and the inner cover more reliable. Moreover, the end of the fastener can be hidden inside the inner cover, avoiding exposure that would affect the overall appearance.

[0013] In a preferred embodiment, the bottom end of the side wall of the inner cover is connected to the bottom end of the outer cover by an annular plate, and the annular plate has a vent.

[0014] The bottom end of the inner cover's side wall is connected to the bottom end of the outer cover by a ring plate, which makes the distance between the inner cover's side wall and the outer cover more stable, thus achieving structural stability of the sound insulation cavity. Furthermore, a vent is opened on the ring plate to enable communication between the sound insulation cavity and the outside world. Even if gas enters the sound insulation cavity, it can be discharged to the outside world, avoiding deformation of the inner or outer cover caused by the gas in the sound insulation cavity expanding due to heat or excessive air pressure.

[0015] More preferably, the annular plate is integrally formed on the outer flange of the inner cover, and the outer flange is fitted with the bottom stop of the outer cover.

[0016] By setting the annular plate as an outward-flared edge integrally formed with the inner cover, the assembly process of the annular plate is reduced and the assembly efficiency is improved. Moreover, by using the outward-flared edge to cooperate with the bottom stop of the outer cover, the radial limit between the inner cover and the outer cover is further realized, avoiding deformation of the soundproof cover and making the soundproof cavity structure stable.

[0017] In a preferred embodiment, the top wall of the inner cover is recessed downward to form a mounting groove, the vent extends through the bottom wall of the mounting groove, and the inner edge of the top cover is connected to the outer periphery of the mounting groove.

[0018] By setting up an installation groove, the exhaust port penetrates through the bottom wall of the installation groove. Therefore, even if airflow leaks radially outward from the exhaust port and exhaust plug, the leaked airflow will be blocked by the side wall of the installation groove and will not continue to flow into the sound insulation cavity. At the same time, since the inner edge of the top cover is connected to the outer periphery of the installation groove, the fitting gap between the top cover and the top wall of the inner cover is isolated by the groove wall of the installation groove and is far away from the exhaust port, thereby further preventing airflow from entering the sound insulation cavity.

[0019] In a preferred embodiment, the top wall of the inner cover includes, from the edge to the center, a recessed platform, a step protruding upward from the recessed platform, and a cover body. The top cover covers the recessed platform in a gap and extends inward to overlap the step. The cover body is exposed from the central opening, and the exhaust port and exhaust plug are located on the cover body.

[0020] By sequentially setting a recessed platform, a step protruding upwards from the recessed platform, and the main body of the cover from the edge to the center on the top wall of the inner cover, the top wall of the inner cover gradually becomes higher towards the center. The sound insulation cavity can extend into the gap between the top cover and the recessed platform, improving the sound insulation effect. At the same time, the top cover can reliably connect the outer cover and the inner cover using the support of the step, while allowing the main body of the cover to be exposed from the central opening. The exhaust port and exhaust plug are located on the main body of the cover and exposed from the central opening, preventing the airflow from the exhaust port from entering the sound insulation cavity.

[0021] More preferably, a ventilation groove is provided on the surface of the step, and the ventilation groove connects the sound insulation cavity to the outside.

[0022] By setting up ventilation channels, the sound insulation cavity can be connected to the outside world. Even if gas enters the sound insulation cavity, it can be discharged to the outside world, avoiding the deformation of the inner or outer cover caused by the gas in the sound insulation cavity expanding due to heat or excessive air pressure.

[0023] More preferably, the top cover is provided with a second fixing part, and the recessed platform is fixedly connected to the second fixing part.

[0024] By fixing the second fixing part to the sinking platform, the space of the top cover and the top wall of the inner cover is made reasonable, the fixing position is reasonable, the fixing is convenient, and the assembly is simple, so that the top cover, the top wall of the inner cover and the outer cover are reliably connected.

[0025] More preferably, the step includes a first step protruding upward from the sinkhole and a second step protruding upward from the first step, and the inner edge of the top cover overlaps the step surface of the first step and abuts against the step side of the second step.

[0026] By setting a first step and a second step, the top cover is axially supported by the step surface of the first step, and the top cover is radially limited by the step side of the second step, so that the top cover and the inner cover are reliably limited. This not only facilitates the precise fixing of the top cover and the inner cover by pre-positioning, but also enables the top cover and the inner cover to be stably matched after fixing, resulting in a reliable structure. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This is an exploded structural diagram of a food processing machine according to one embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the exploded structure of the soundproof cover in one embodiment of the present invention;

[0030] Figure 3 This is a cross-sectional view of the soundproof cover along the P1-P1′ direction in one embodiment of the present invention;

[0031] Figure 4 for Figure 3 Enlarged diagram of section A in the middle;

[0032] Figure 5 for Figure 3 Enlarged diagram of section B in the middle;

[0033] Figure 6 This is a cross-sectional view of the soundproof cover along the P2-P2′ direction in one embodiment of the present invention;

[0034] Figure 7 for Figure 6 Enlarged diagram of section C;

[0035] Figure 8 for Figure 6 Enlarged schematic diagram of section D in the middle;

[0036] Figure 9 This is a schematic diagram of the inner cover in one embodiment of the present invention;

[0037] Figure 10 This is a top view of the soundproof cover in one embodiment of the present invention;

[0038] Figure 11 for Figure 10 Enlarged schematic diagram of section E in the middle.

[0039] Explanation of reference numerals in the attached drawings: 10, Main unit; 20, Stirring cup; 30, Soundproof cover; 31, Inner cover; 311, Exhaust port; 312, Exhaust plug; 313, Mounting groove; 314, Settled platform; 315, First step; 316, Second step; 317, Top body of the cover; 318, Vent groove; 32, Outer cover; 321, Stop rib; 322, Stop groove; 323, Support rib; 3201, Opening; 3202, Cylinder; 3203, Mounting ring; 33, Soundproof cavity; 34, Top cover; 341, Central opening; 40, First fixing part; 41, Buckle; 42, Slot; 50, Second fixing part; 51, Stud; 52, Perforation; 53, Fastener; 60, Annular plate; 61, Vent. Detailed Implementation

[0040] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0042] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] like Figure 1 As shown, in one embodiment, this utility model provides a food processing machine, including a main unit 10, a mixing cup 20 mounted on the main unit 10, and a soundproof cover 30 mounted above the main unit 10 to cover the mixing cup 20. Figure 2 , 3 As shown, the soundproof cover 30 includes: an inner cover 31 having a top wall and side walls, the top wall covering the top of the stirring cup 20, and a vent 311 and a vent plug 312 installed in the middle of the top wall; an outer cover 32 surrounding the outer periphery of the inner cover 31 and forming a soundproof cavity 33 with the inner cover 31, the top of the outer cover 32 having an opening 3201, and the bottom of the outer cover 32 being connected to the bottom of the inner cover 31; and a top cover 34 covering the top of the opening 3201 and having a central opening 341, the top cover 34 being connected to the top of the outer cover 32 and extending inward to connect with the top wall of the inner cover 31, the vent 311 and the vent plug 312 being exposed from the central opening 341.

[0046] It should be noted that, in this utility model, for example... Figure 3 As shown, the top of the outer cover 32 can be flush with the top wall edge of the inner cover 31, and the top cover 34 extends horizontally to connect the outer cover 32 and the inner cover 31; of course, in other embodiments, optionally, the top of the outer cover 32 is higher or lower than the top wall edge of the inner cover 31, and the top cover 34 extends obliquely to connect the outer cover 32 and the inner cover 31.

[0047] This utility model provides a food processing machine, including an inner cover 31, an outer cover 32, and a top cover 34. The inner cover 31 forms a multi-directional enclosure over the top and sides of the mixing cup 20 through its top and side walls. The outer cover 32 surrounds the outer periphery of the inner cover 31 and together with the inner cover 31, forms a sound-insulating cavity 33. Noise propagation is reduced due to energy dissipation when passing through the sound-insulating cavity 33 and the double obstruction by the inner cover 31 and the outer cover 32. An exhaust port 311 and an exhaust plug 312 are provided in the middle of the top wall of the inner cover 31 to regulate the exhaust of the mixing cup 20, preventing excessive pressure inside the mixing cup 20 and ensuring safe use. By opening the top of the outer cover 32 and connecting it to the top of the outer cover 32 with a top cover 34 for installation at the opening of the outer cover 32, the top cover 34 extends inward to connect with the top wall of the inner cover 31. Therefore, the inner cover 31 and the outer cover 32 are reliably connected by the top cover 34, making the distance between the side wall of the inner cover 31 and the outer cover 32 stable, and the structure of the sound insulation cavity 33 stable. At the same time, the connection between the top cover 34 and the inner cover 31 reduces the extension of the sound insulation cavity 33 towards the middle of the inner cover 31, thus increasing the distance between the sound insulation cavity 33 and the exhaust port 311, avoiding the situation in the prior art where the outer cover 32 completely covers the inner cover. The cover 31 has a gap with the inner cover near the exhaust port 311, which prevents the gas discharged from the exhaust port 311 or the exhaust plug 312 from entering the sound insulation cavity 33. At the same time, the exhaust port 311 and the exhaust plug 312 are exposed from the central opening 341, and the gas in the stirring cup 20 can be directly discharged upward to the outside through the exhaust port 311 or the exhaust plug 312, and quickly mix with the outside air without entering the sound insulation cavity 33. Therefore, the problem of condensation in the sound insulation cavity 33 affecting visibility and the deformation of the sound insulation cover 30 is avoided.

[0048] In a preferred embodiment, such as Figure 3 As shown, the top cover 34 is provided with a first fixing part 40 that is fixedly connected to the outer cover 32 and a second fixing part 50 that is fixedly connected to the inner cover 31.

[0049] More preferably, such as Figure 3 , 4 As shown, the first fixing part 40 includes a buckle 41, and the top of the outer cover 32 is provided with a slot 42 that engages with the buckle 41.

[0050] Or, more preferably, such as Figure 6 , 7 As shown, the second fixing part 50 includes a downwardly extending stud 51, and the top wall of the inner cover 31 is provided with a through hole 52. The fastener 53 is locked to the stud 51 through the through hole 52.

[0051] By providing a first fixing part 40 and a second fixing part 50 on the top cover 34, during assembly, the first fixing part 40 can be used to fix the outer cover 32 to form a combined module, and then the outer cover 32 can be fitted over the inner cover 31, and the second fixing part 50 can be used to fix the inner cover 31 to form a soundproof cover 30; or the second fixing part 50 can be used to fix the inner cover 31 to form a combined module, and then the combined module can be fitted over the outer cover 32, and the first fixing part 40 can be used to fix the outer cover 32 to form a soundproof cover 30. Assembly is convenient, alignment is easy, and the fixing positions of the two fixing parts do not interfere with each other. The distance between the side wall of the inner cover 31 and the outer cover 32 is stable, and the structure of the soundproof cavity 33 is stable, which can prevent deformation of the inner cover 31 or the outer cover 32 during assembly.

[0052] By setting the first fixing part 40 as a buckle 41 and providing a slot 42 at the top of the outer cover 32, the fixing is simple, achieving reliable fixing of the outer cover 32 and the top cover 34 while avoiding exposure of the fixing parts and maintaining the integrity of the appearance. By setting the second fixing part 50 as a stud 51, the fastener 53 passes through the through hole 52 of the inner cover 31 and is locked to the stud 51, making the fixing between the top cover 34 and the inner cover 31 more reliable. Moreover, the end of the fastener 53 can be hidden inside the inner cover 31, avoiding exposure and affecting the overall appearance.

[0053] Of course, in practice, the first fixing part 40 and the second fixing part 50 in this utility model are not limited to the structure provided in the above embodiments. For example, in other embodiments, the first fixing part 40 and the second fixing part 50 are both studs or screws, or both are snap-fits.

[0054] In a preferred embodiment, such as Figure 5 As shown, the bottom end of the side wall of the inner cover 31 is connected to the bottom end of the outer cover 32 by an annular plate 60, and the annular plate 60 has a vent 61. More preferably, the annular plate 60 is integrally formed on the outer flange of the inner cover 31, and the outer flange is fitted with the bottom stop of the outer cover 32.

[0055] Optionally, combined Figure 5 , 8 As shown, the vents 61 are spaced apart along the annular plate; of course, in practice, the vents 61 can form annular openings along the circumference of the annular plate.

[0056] In addition, combined Figure 8 The outer flange and the bottom end of the outer cover 32 are respectively connected by a stop groove 322 and a stop rib 321. More preferably, the bottom end of the soundproof cover is provided with a downwardly extending support rib 323 for cooperating with the main unit. Optionally, the support rib 323 is integrally formed into the inner cover or the outer cover.

[0057] The bottom end of the side wall of the inner cover 31 is connected to the bottom end of the outer cover 32 by the annular plate 60, so that the side wall of the inner cover 31 and the outer cover 32 maintain a more stable distance, thereby achieving structural stability of the sound insulation cavity 33. Furthermore, a vent 61 is opened on the annular plate 60 to enable the sound insulation cavity 33 to communicate with the outside world. Even if gas enters the sound insulation cavity 33, it can be discharged to the outside world, thus preventing the gas in the sound insulation cavity 33 from expanding due to heat or excessive air pressure, which could cause deformation of the inner cover 31 or the outer cover 32.

[0058] By setting the annular plate 60 as an outward flange integrally formed with the inner cover 31, the assembly process of the annular plate 60 is reduced and the assembly efficiency is improved. Moreover, by using the outward flange to cooperate with the bottom stop of the outer cover 32, the radial limit between the inner cover 31 and the outer cover 32 is further realized, avoiding deformation of the soundproof cover 30 and making the structure of the soundproof cavity 33 stable.

[0059] Of course, it is understandable that the annular plate 60 can also be integrally formed into the inner flange of the outer cover 32.

[0060] Furthermore, in a preferred embodiment, the outer cover and the top cover may be fitted with a stop.

[0061] This utility model does not impose any limitations on the installation of the exhaust plug, such as... Figure 3 As shown, in a preferred embodiment, the top wall of the inner cover 31 is recessed downward to form a mounting groove 313, the exhaust port 311 penetrates the bottom wall of the mounting groove 313, and the inner edge of the top cover 34 is connected to the outer periphery of the mounting groove 313.

[0062] By setting the mounting groove 313, the exhaust port 311 penetrates the bottom wall of the mounting groove 313. Therefore, even if there is airflow leaking radially outward from the exhaust port 311 and the exhaust plug 312, the leaked airflow will be blocked by the side wall of the mounting groove 313 and will not continue to flow into the sound insulation cavity 33. At the same time, since the inner edge of the top cover 34 is connected to the outer periphery of the mounting groove 313, the fitting gap between the top cover 34 and the top wall of the inner cover 31 is isolated by the groove wall of the mounting groove 313 and is far away from the exhaust port 311, thereby further preventing airflow from entering the sound insulation cavity 33.

[0063] It should be noted that this utility model does not limit the top wall structure of the inner cover; for example, such as... Figure 8 , Figure 4 As shown, in a preferred embodiment, the top wall of the inner cover 31 includes, from the edge to the center, a recessed platform 314, a step protruding upward from the recessed platform 314, and a top cover body 317. The top cover 34 covers the recessed platform 314 in the air and extends inward to overlap the step. The top cover body 317 is exposed from the central opening 341. The exhaust port 311 and the exhaust plug 312 are located on the top cover body 317.

[0064] Optionally, the top body 317 is provided with the aforementioned mounting groove 313 to provide an exhaust port 311 and an exhaust plug 312.

[0065] By sequentially setting a recessed platform 314, a step protruding upward from the recessed platform 314, and a main body 317 on the top wall of the inner cover 31 from the edge to the center, the top wall of the inner cover 31 gradually increases in height towards the center. The sound insulation cavity 33 can extend into the interlayer between the top cover 34 and the recessed platform 314, thereby improving the sound insulation effect. At the same time, the top cover 34 can reliably connect the outer cover 32 and the inner cover 31 using the support of the step. Meanwhile, the main body 317 is exposed from the central opening 341, and the exhaust port 311 and exhaust plug 312 are located on the main body 317 and exposed from the central opening 341, preventing the airflow discharged from the exhaust port 311 from entering the sound insulation cavity 33.

[0066] Of course, in this embodiment, the method of fixing the top cover is more preferably combined with... Figure 2 As shown, the top cover 34 is provided with a first fixing part 40 fixedly connected to the outer cover 32 and a second fixing part 50 fixedly connected to the inner cover 31. Specifically, the recessed platform 314 is fixedly connected to the second fixing part 50;

[0067] Preferably, such as Figure 2 As shown, the outer cover 32 includes a cylindrical body 3202 and a mounting ring 3203 connected to the upper end of the cylindrical body. The mounting ring 3203 defines an opening 3201 inside. The top cover 34 is fixedly connected to the mounting ring through a first fixing part 40.

[0068] Of course, the outer cover in this utility model is not limited to the one mentioned above. In fact, the outer cover may only include the cylinder body. By thickening the cylinder wall, it is easier for the first fixing part to be directly fixed to the end face of the cylinder body to fix the top cover 34 to the cylinder body.

[0069] By fixing the second fixing part 50 to the sinking platform 314, the space of the top cover 34 and the top wall of the inner cover 31 is reasonably utilized. The fixing position is reasonable, the fixing is convenient, and the assembly is simple, so that the top cover 34, the top wall of the inner cover 31, and the outer cover 32 are reliably connected.

[0070] Of course, the steps can be set to only one level or multiple levels. For example, preferably, the steps include a first step 315 protruding upward from the sinking platform 314 and a second step 316 protruding upward from the first step 315. The inner edge of the top cover 34 overlaps the step surface of the first step 315 and abuts against the step side of the second step 316.

[0071] By setting a first step 315 and a second step 316, the top cover 34 is axially supported by the step surface of the first step 315, and the top cover 34 is radially limited by the step side of the second step 316. This makes the top cover 34 and the inner cover 31 reliably limited, which not only facilitates the precise fixing of the top cover 34 and the inner cover 31 by forming a pre-position, but also enables the top cover 34 and the inner cover 31 to be stably matched after fixing, resulting in a reliable structure.

[0072] As a preferred option, such as Figure 10 , 11 As shown, a ventilation groove 318 is provided on the surface of the step, which connects the sound insulation cavity 33 to the outside. Optionally, combined with Figure 4 , Figure 7 As shown, a gap S is provided between the mounting ring 3203 and the step sidewall of the first step 315, so that even if gas enters the sound insulation cavity 33, it can still be discharged along the edge of the sound insulation cavity 33. Figure 4 or Figure 7 The gas passes through gap S and vent 318 in the direction indicated by the middle arrow to discharge to the outside, preventing the gas in the sound insulation cavity 33 from expanding due to heat or excessive air pressure, which could cause deformation of the inner cover 31 or the outer cover 32.

[0073] Additionally, it needs to be explained that the combination Figure 2 As shown, the mounting ring 3203 is square, conforming to the square shape of the outer casing, while the first step 315 is circular. Therefore, the gap S formed between the mounting ring 3203 and the first step 315 has different sizes at different positions, such as... Figure 3 , 4 The diagram shows a cross-sectional view of the soundproof enclosure along the P1-P1′ direction. This position is close to the edge of the soundproof enclosure, where the gap S is relatively large. Figure 6 , 7 The diagram shows a cross-sectional view of the soundproof enclosure along the P2-P2′ direction, where the gap S is relatively small and the location is close to the middle of the enclosure.

[0074] Of course, this utility model does not limit the shape of the outer cover and the inner cover; the cross-section of the outer cover or the inner cover can be square, circular, or other irregular shapes. The steps on the top wall of the inner cover can be the circular steps or polygonal steps mentioned above.

[0075] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0076] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0077] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A food processing machine, comprising a main unit, a mixing cup mounted on the main unit, and a soundproof cover mounted above the main unit to house the mixing cup, characterized in that, The soundproof enclosure includes: The inner cover has a top wall and side walls, the top wall covering the top of the mixing cup, and the middle of the top wall is provided with an exhaust port and an exhaust plug installed at the exhaust port; An outer cover surrounds the outer periphery of the inner cover and forms a soundproof cavity with the inner cover. The top of the outer cover is open, and the bottom of the outer cover is connected to the bottom of the inner cover. A top cover that covers the opening and has a central opening extends inward from the top of the outer cover to connect with the top wall of the inner cover, and an exhaust port and an exhaust plug are exposed from the central opening.

2. The food processing machine according to claim 1, characterized in that, The top cover is provided with a first fixing part that is fixedly connected to the outer cover and a second fixing part that is fixedly connected to the inner cover.

3. A food processing machine according to claim 2, characterized in that, The first fixing part includes a buckle, and the top of the outer cover is provided with a slot that engages with the buckle; Alternatively, the second fixing part includes a downwardly extending stud, and the top wall of the inner cover is provided with a through hole, through which a fastener is locked to the stud.

4. A food processing machine according to claim 1, characterized in that, The bottom end of the side wall of the inner cover is connected to the bottom end of the outer cover by an annular plate, and the annular plate has a vent.

5. A food processing machine according to claim 4, characterized in that, The annular plate is integrally formed on the outer flange of the inner cover, and the outer flange is fitted with the bottom stop of the outer cover.

6. A food processing machine according to claim 1, characterized in that, The top wall of the inner cover is recessed downward to form a mounting groove, the exhaust port penetrates the bottom wall of the mounting groove, and the inner edge of the top cover is connected to the outer periphery of the mounting groove.

7. A food processing machine according to claim 1, characterized in that, The top wall of the inner cover includes, from the edge to the center, a recessed platform, a step protruding upward from the recessed platform, and a main body of the cover. The top cover covers the recessed platform in the air and extends inward to overlap the step. The main body of the cover is exposed from the central opening. The exhaust port and exhaust plug are located on the main body of the cover.

8. A food processing machine according to claim 7, characterized in that, A ventilation groove is provided on the surface of the step, which connects the sound insulation cavity to the outside.

9. A food processing machine according to claim 7, characterized in that, The top cover is provided with a second fixing part, and the sinking platform is fixedly connected to the second fixing part.

10. A food processing machine according to claim 7, characterized in that, The steps include a first step that protrudes upward from the sinkhole and a second step that protrudes upward from the first step. The inner edge of the top cover overlaps the step surface of the first step and abuts against the step side of the second step.

Images