Meat grinder

Abstract

The utility model discloses a meat grinder which comprises a stirring cup, a stirring piece installed in the stirring cup and a main machine installed above the stirring cup, a motor assembly for driving the stirring piece is arranged in the main machine, an ultraviolet lamp is further arranged in the main machine, ozone is generated in the main machine through the ultraviolet lamp, and an air outlet communicated with an inner cavity of the stirring cup is formed in the bottom wall of the main machine. The air outlet does not coincide with the horizontal projection of the ultraviolet lamp, and the bottom end of the ultraviolet lamp is higher than the top end of the air outlet. According to the meat grinder provided by the utility model, the ultraviolet lamp irradiates in the main machine to generate ozone, and the ozone enters the stirring cup through the air outlet for sterilization and disinfection, so that the problem that bacteria are easy to breed in the stirring cup is relieved. In addition, the horizontal projection of the air outlet and the horizontal projection of the ultraviolet lamp do not coincide, so that light of the ultraviolet lamp does not directly irradiate through the air outlet, the ultraviolet light projected into the stirring cup is reduced, the influence of the ultraviolet light on the eyes of the user when the user watches the stirring cup is reduced, and the eye fatigue feeling caused by ultraviolet irradiation is relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing devices, and in particular relates to a meat grinder. Background Art

[0002] When using an existing meat grinder, users usually place raw ingredients in the cup body for chopping, and then process and heat the chopped ingredients before eating. However, since raw ingredients may carry some bacteria, it is not easy for highly active bacteria or viruses to be killed by high temperature, which may cause discomfort to users after eating. In addition, after using the meat grinder, users usually clean the cup body, assemble the main unit with the cup body and the cup lid in place for storage. If the user does not wipe or dry the cup body, bacteria are likely to breed in the cup body. If the air permeability of the cup body is poor, the bacteria will multiply rapidly and cause mold, odor, etc., which brings a lot of inconvenience to the user.

[0003] Ultraviolet lamps are used to achieve sterilization in some existing food processing devices. For example, Chinese patent application number 202210726590.0 discloses a baby food machine, in which the UV lamp is installed under the blade and located in the material cup, so that the UV lamp can be installed completely exposed inside the food cup to disinfect the food cup; for another example, Chinese patent application number 202010389270.1 discloses a milk churn with a disinfection function, in which the UV lamp is installed inside the stirring body and facing the light-transmitting hole, so that the ultraviolet rays of the UV lamp are emitted from the light-transmitting hole to disinfect the parts to be disinfected.

[0004] However, UV lamps are mostly used in processing devices such as supplementary food machines, while meat grinders do not have a sterilization function. In addition, although UV lamps can be used for sterilization and disinfection in the above food processing devices, most UV lamps are exposed or facing the light-transmitting holes, and the cup body of the meat grinder is mostly made of glass. If a UV lamp is added for sterilization, the ultraviolet light will be projected downward into the cup body during user use, and further projected to the outside through the cup wall, causing eye discomfort to the user. However, if the light of the UV lamp is weakened, or the UV rays are blocked by a shielding structure, the sterilization effect of the UV lamp using ultraviolet rays will be reduced. Utility Model Content

[0005] The utility model provides a meat grinder, which solves the problem that bacteria are easily bred in the cup of the meat grinder and that when ultraviolet lamps are used for sterilization, ultraviolet rays are projected downward into the mixing cup, causing user eye discomfort and poor ultraviolet sterilization effect.

[0006] To achieve the above-mentioned purpose, the utility model provides a meat grinder, including a stirring cup, a stirring piece installed in the stirring cup, and a main unit installed above the stirring cup. A motor assembly for driving the stirring piece is provided in the main unit. An ultraviolet lamp is also provided inside the main unit. The ultraviolet lamp generates ozone in the main unit. An air outlet connected to the inner cavity of the stirring cup is provided on the bottom wall of the main unit. The air outlet does not overlap with the horizontal projection of the ultraviolet lamp, and the bottom end of the ultraviolet lamp is arranged higher than the top end of the air outlet.

[0007] The meat grinder provided by the utility model has an ultraviolet lamp in the main unit. The ultraviolet lamp irradiation will generate ozone in the main unit. The ozone enters the mixing cup through the air outlet on the bottom wall of the main unit, sterilizes and disinfects the inside of the mixing cup, realizes the sterilization of the meat grinder, and alleviates the problem of easy breeding of bacteria in the mixing cup. In addition, the air outlet and the horizontal projection of the ultraviolet lamp do not overlap, that is, the two are arranged in a staggered manner, so that the light of the ultraviolet lamp will not be directly emitted through the air outlet, and the structure inside the main unit located directly below the ultraviolet lamp will block the ultraviolet light, thereby reducing the ultraviolet light projected into the mixing cup, reducing the impact of the ultraviolet light on the user's eyes when the user stares at the mixing cup for a long time, and relieving the eye fatigue caused by ultraviolet light irradiation. Compared with the method of sterilizing by ultraviolet light radiation, the utility model sterilizes by ozone, and ozone is in a gaseous state, which is easier to diffuse in various areas in the mixing cup, ensuring the sterilization effect of each area. At the same time, even if the ultraviolet light emitted by the ultraviolet lamp is blocked, it will not affect the overall sterilization effect.

[0008] In addition, the bottom of the ultraviolet lamp is higher than the top of the air outlet, and the density of ozone is greater than that of air, so it can flow downward naturally, thereby accelerating the flow speed of ozone to the air outlet, shortening the time for ozone to flow to the air outlet below, and improving the ozone flow efficiency.

[0009] Preferably, a ventilation channel is provided between the main unit and the blending cup, and ozone in the main unit enters the inner cavity of the blending cup along the ventilation channel.

[0010] The air permeable channel can improve the guiding effect of ozone, so that ozone can flow into the inner cavity of the blender cup through the air permeable channel, thereby improving the flow efficiency of ozone, shortening the time for ozone to enter the blender cup, reducing the entire sterilization time, and improving the sterilization efficiency. At the same time, under the guidance of the air permeable channel, it can also reduce the escape of ozone inside the main unit and between the main unit and the blender cup, so that ozone can enter the blender cup more concentratedly along the air permeable channel, improve the utilization rate of ozone, and ensure the sterilization effect.

[0011] Preferably, the upper cover of the blending cup is provided with a cup cover to support the main unit, the cup cover is provided with a cup cover hole laterally offset from the air outlet, the air permeable channel includes a connecting channel formed between the outer bottom wall of the main unit and the upper surface of the cup cover, the connecting channel extends laterally to connect the air outlet with the cup cover hole.

[0012] The ventilation channel is a communication channel arranged inside the main unit or between the main unit and the cup cover. The communication channel extends laterally to guide the ozone in the main unit to the central area of ​​the stirring cup, and then enter the inner cavity of the stirring cup from the center of the stirring cup.

[0013] Preferably, the outer bottom wall of the main unit is provided with an upwardly recessed matching groove, which extends laterally to connect the air outlet and the cup cover hole, and the matching groove cooperates with the upper surface of the cup cover to form a connecting channel.

[0014] When the main unit and the cup cover are installed in place, the matching groove on the outer bottom wall of the main unit matches with the upper surface of the cup cover, and the two form a connecting channel to connect the air outlet with the hole of the cup cover.

[0015] Preferably, the ventilation channel comprises a communication channel located inside the main body and extending laterally along the inner bottom wall of the main body.

[0016] The air permeable channel is a connecting channel arranged inside the main unit or between the main unit and the cup cover. The connecting channel extends horizontally to guide the ozone in the main unit to the central area of ​​the blender cup, and then enter the inner cavity of the blender cup from the center of the blender cup. When the motor assembly drives the stirring element in the blender cup to rotate, the stirring element will stir the air in the blender cup to flow around under the action of centrifugal force, thereby causing the ozone entering the blender cup to diffuse around and gradually permeate the entire inner cavity. Ozone enters the blender cup from the center and diffuses evenly around, so that the distribution of ozone in the inner cavity of the blender cup is more uniform, improving the sterilization effect of each area in the blender cup and avoiding the generation of sterilization dead corners.

[0017] Preferably, the bottom wall of the reduction box and the inner bottom wall of the main machine are enclosed to form a communication channel, one end of the communication channel is arranged close to the ultraviolet lamp, and the other end is communicated with the air outlet.

[0018] The ozone generated by the ultraviolet lamp flows downward into the connecting channel, flows horizontally in the connecting channel and then reaches the air outlet, and is discharged from the main unit from the air outlet.

[0019] Preferably, the distance between the bottom end of the ultraviolet lamp and the bottom wall of the main unit is H1, the height of the inner cavity of the main unit is H2, and 1 / 10≤H1 / H2≤1 / 2.

[0020] Since the main unit is located above the blending cup, and the ultraviolet lamp is located inside the main unit, flowing downward into the inner cavity of the blending cup, it can be understood that the closer the ultraviolet lamp is to the bottom wall of the main unit, the shorter the path of ozone entering the blending cup, the shorter the time it takes to enter the blending cup, and the faster the sterilization time. However, since the air outlet is located at the bottom wall of the main unit, the closer the ultraviolet lamp is to the bottom wall of the main unit, the closer it is to the air outlet, and the greater the risk of ultraviolet rays irradiating the blending cup through the air outlet. Taking the above two factors into consideration, the relationship between H1 and H2 is limited to 1 / 10≤H1 / H2≤1 / 2, which not only makes the ultraviolet lamp closer to the bottom wall of the main unit, making the flow path of ozone entering the blending cup shorter, so that ozone can enter the blending cup in a timely and rapid manner for sterilization, but also ensures that the ultraviolet lamp and the air outlet are at a relatively safe distance, and avoids the ultraviolet rays emitted by the ultraviolet lamp from being projected into the blending cup through the air outlet as much as possible.

[0021] Preferably, an installation space is formed between the motor assembly and the main machine, and an isolation member is provided in the installation space. The isolation member divides the installation space into a first chamber and a second chamber located below the first chamber, and the ultraviolet lamp is arranged in the second chamber.

[0022] Due to the large size of the installation space, if the ozone generated by the ultraviolet lamp relies on natural diffusion without the aid of a blowing device, it will need to fill the installation space first and then flow downward into the blender cup. This will cause a serious delay in the time it takes for the ozone to enter the blender cup, and the entire sterilization time will also last a long time. The installation space is divided into a first chamber and a second chamber that are arranged and isolated from each other through a partition, and the ultraviolet lamp is set in the second chamber, which not only makes the ultraviolet lamp closer to the air outlet on the bottom wall of the main unit, but also greatly reduces the volume of the chamber where the ultraviolet lamp is located. The ozone generated by the ultraviolet lamp can complete the filling of the second chamber in a shorter time and diffuse into the blender cup, so that the ozone can enter the blender cup for sterilization more quickly and timely after being generated in the body, greatly shortening the time required for sterilization and improving the user experience.

[0023] Preferably, the motor assembly includes a motor, and the isolation piece is a silicone pad sleeved on the outer circumference of the motor, and the silicone pad extends outward to abut against the side wall of the main machine; or, the main machine includes a main body and a step portion that is enlarged relative to the outer diameter of the main body, and the motor assembly includes a motor located in the main body and a reduction gear box fixed to the motor and extending into the step portion, and the housing of the reduction gear box abuts against the step portion to form an isolation piece.

[0024] By sleeved a silicone pad on the outer periphery of the motor, the silicone pad is abutted against the side wall of the host to form a seal, and the installation space is divided into a first chamber and a second chamber. The silicone pad can undergo elastic deformation when squeezed, and then after abutting against the side wall of the host, it can improve the tightness of the contact between the two, thereby improving the sealing effect, isolating the first chamber and the second chamber, and concentrating the ozone generated by the ultraviolet lamp in the second chamber. At the same time, the silicone pad on the outer periphery of the motor can cooperate with the side wall of the host to form an installation limit for the motor. When the motor is installed inside the host, it is ensured that the motor is installed coaxially with the host to avoid the motor being offset from the host, reducing the difficulty of assembly. After the motor is installed, the silicone pad can also abut against the side wall of the host in the circumference to form a limit, so that the motor remains in a fixed position, avoids the motor from shifting, and improves the position stability of the motor.

[0025] The step portion is larger than the outer diameter of the main body, leaving enough assembly space for the reduction box, facilitating the arrangement of the reduction box and avoiding cramped internal structure of the main unit. The outer diameter of the main body is relatively small, which can reduce the volume of this part of the main unit while meeting the requirements of motor installation, helping to achieve miniaturization. At the same time, the small-sized main unit is also more convenient for users to grip, improving the user experience. The first chamber and the second chamber are separated by the contact between the housing of the reduction box and the step portion, which simplifies the internal structure of the main unit. There is no need to add additional isolation parts. The isolation parts are formed by the combination of the reduction box and the step portion, which optimizes the internal structure layout of the main unit, reduces the number of components, and saves costs.

[0026] Preferably, the ultraviolet lamp comprises a lamp tube, which is a straight tube vertically arranged on one side of the motor assembly; or, the ultraviolet lamp comprises a lamp tube, which is a curved tube surrounding the outer circumference of the motor assembly.

[0027] The straight tube-shaped lamp is arranged vertically on one side of the motor assembly, which makes the overall volume of the UV lamp smaller, saving costs while also occupying less space inside the host. The extension direction of the lamp tube is consistent with the axis direction of the host, further saving the internal space of the host, reducing the radial size of the host, and making it easier for users to hold and use.

[0028] The ultraviolet lamp is a curved tube and is arranged around the motor assembly, which rationally utilizes the space between the inner wall of the main unit and the motor assembly, thereby optimizing the structural layout inside the main unit. At the same time, the curved tube structure extending along the circumference of the motor assembly can also increase the length of the ultraviolet lamp and the area covered by the ultraviolet lamp, thereby increasing the amount of ozone produced and improving the sterilization efficiency. In addition, the ultraviolet lamp surrounds the outer periphery of the motor assembly, so that when the ultraviolet lamp is turned on, ozone will be evenly produced around the motor assembly, and then evenly enter the inside of the mixing cup through the air outlet, and evenly distributed around the circumference of the mixing cup, thereby improving the uniformity of ozone distribution in the mixing cup, ensuring the thoroughness of sterilization and disinfection, and avoiding the generation of sterilization dead corners that lead to bacterial residues.

[0029] Preferably, the motor assembly includes a motor and a reduction box fixed at the lower end of the motor, the ultraviolet lamp is located on one side of the reduction box, and the ultraviolet lamp is fixed on the side wall of the reduction box or the side wall of the main machine.

[0030] The UV lamp can be fixed to the side wall of the reduction box or the side wall of the main machine according to the internal structure of the main machine. When the UV lamp is fixed to the side wall of the reduction box, it is far away from the side wall of the main machine, which can reduce the ultraviolet rays projected to the outside through the side wall of the main machine. At the same time, a shielding structure can be further set between the UV lamp and the side wall of the main machine to shield the ultraviolet rays emitted laterally by the UV lamp. When the UV lamp is fixed to the side wall of the main machine, a gap is created between the UV lamp and the reduction box, which can prevent the reduction box from directly contacting the UV lamp and transmitting vibration to the UV lamp, affecting the installation stability of the UV lamp, and a shock-absorbing structure can be further set between the UV lamp and the reduction box to further alleviate the transmission of vibration from the reduction box to the UV lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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:

[0032] Figure 1 This is a cross-sectional view of a meat grinder according to one embodiment of the utility model;

[0033] Figure 2 A cross-sectional view of a host computer according to an embodiment of the present invention;

[0034] Figure 3 for Figure 2 A cross-sectional view of the mainframe from another perspective;

[0035] Figure 4 This is a schematic structural diagram of the inner bottom wall of the main machine in one embodiment of the utility model;

[0036] Figure 5 for Figure 4 A cross-sectional view of the main engine;

[0037] Figure 6 This is a schematic structural diagram of the outer bottom wall of the main machine in one embodiment of the utility model;

[0038] Figure 7 This is a cross-sectional view of a host in another embodiment of the present invention.

[0039] in:

[0040] 1 mixing cup; 11 mixing parts;

[0041] 2 main engine; 21 motor assembly; 211 motor; 212 reduction box; 22 air outlet; 23 connecting channel; 24 retaining rib; 25 installation space; 251 first chamber; 252 second chamber; 26 step portion; 27 shaft hole;

[0042] 3. UV lamp;

[0043] 4 cup lids; 41 cup lid holes. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate 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 protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0046] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] like Figure 1 , Figure 2 As shown, a meat grinder comprises a stirring cup 1, a stirring member 11 installed in the stirring cup 1, and a main unit 2 installed above the stirring cup 1. A motor assembly 21 for driving the stirring member 11 is provided in the main unit 2. An ultraviolet lamp 3 is also provided inside the main unit 2. The ultraviolet lamp 3 generates ozone in the main unit 2. An air outlet 22 connected to the inner cavity of the stirring cup 1 is provided on the bottom wall of the main unit 2. The air outlet 22 does not overlap with the horizontal projection of the ultraviolet lamp 3, and the bottom end of the ultraviolet lamp 3 is arranged higher than the top end of the air outlet 22.

[0050] The meat grinder provided by the utility model has an ultraviolet lamp 3 disposed in the main unit 2. The ultraviolet lamp 3 generates ozone in the main unit 2 when irradiated. The ozone enters the mixing cup 1 through the air outlet 22 on the bottom wall of the main unit 2, sterilizes and disinfects the inside of the mixing cup 1, sterilizes the meat grinder, and alleviates the problem of bacteria easily breeding in the mixing cup 1. In addition, the air outlet 22 and the horizontal projection of the ultraviolet lamp 3 do not overlap, that is, the two are arranged in a staggered manner, so that the light of the ultraviolet lamp 3 will not be directly emitted through the air outlet 22, and the structure inside the main unit 2 located directly below the ultraviolet lamp 3 will block the ultraviolet rays, thereby reducing the ultraviolet light projected into the mixing cup 1, reducing the impact of the ultraviolet light on the user's eyes when the user stares at the mixing cup 1 for a long time, alleviating the eye fatigue caused by ultraviolet light irradiation, and improving the user experience.

[0051] Compared with the sterilization method using ultraviolet radiation, the present invention sterilizes by using ozone, which is in gaseous state and is easier to diffuse in various areas of the mixing cup, thus ensuring the sterilization effect in various areas. Even if the ultraviolet rays emitted by the ultraviolet lamp 3 are blocked, the overall sterilization effect will not be affected.

[0052] In addition, the bottom end of the ultraviolet lamp 3 is higher than the top end of the air outlet 22, and the density of ozone is greater than that of air, so it can flow downward naturally, thereby accelerating the flow speed of ozone to the air outlet 22, shortening the time for ozone to flow to the air outlet 22 below, and improving the ozone flow efficiency.

[0053] Specifically, the emission spectrum of the ultraviolet lamp 3 includes two regions of 254 nanometers and 185 nanometers, wherein 185 nanometers corresponds to the ozone band ultraviolet rays. The spectrum of the ultraviolet lamp 3 of the utility model includes ultraviolet rays of 185 nanometers, which will produce ozone under appropriate irradiation conditions, such as strong ultraviolet irradiation. Then, by passing the ozone into the mixing cup 1, the inside of the mixing cup 1 is sterilized and disinfected.

[0054] It should be noted that the present invention does not limit the way in which ozone enters the mixing cup 1. In one embodiment, Figure 1 As shown, the main unit 2 is located above the blending cup 1, and the ultraviolet lamp 3 is located inside the main unit 2. When the ultraviolet lamp 3 generates ozone inside the main unit 2, since the density of ozone is greater than that of air, it will naturally flow downward, and then enter the blending cup 1 through the air outlet 22. In this embodiment, the characteristic that the density of ozone is greater than that of air is utilized to make the ozone naturally flow downward into the blending cup 1, without the need to set up an additional blowing member, thereby simplifying the internal structure of the main unit 2 and saving costs.

[0055] In another embodiment, a blowing member, such as a fan, may also be provided in the main unit 2 to blow the ozone generated by the ultraviolet lamp 3 downward into the blending cup 1, thereby shortening the time for ozone to enter the blending cup 1, improving the flow efficiency of ozone, and further improving the sterilization efficiency.

[0056] As a preferred embodiment of the present invention, a ventilation channel is provided between the main unit 2 and the blending cup 1 , and ozone in the main unit 2 enters the inner cavity of the blending cup 1 along the ventilation channel.

[0057] The air permeable channel can improve the guiding effect of ozone, so that ozone can flow into the inner cavity of the blending cup 1 through the air permeable channel, thereby improving the flow efficiency of ozone, shortening the time for ozone to enter the blending cup 1, reducing the entire sterilization time, and improving the sterilization efficiency. At the same time, under the guidance of the air permeable channel, the escape of ozone inside the main unit 2 and between the main unit 2 and the blending cup 1 can also be reduced, so that ozone can enter the blending cup 1 more concentratedly along the air permeable channel, improving the utilization rate of ozone and ensuring the sterilization effect.

[0058] It should be noted that the present embodiment does not limit the location and formation of the ventilation channel, which may be one of the following embodiments:

[0059] Embodiment 1: In this embodiment, as Figure 1 As shown, the upper cover of the blending cup 1 is provided with a cup cover 4 to support the main unit 2, and the cup cover 4 is provided with a cup cover hole 41 which is laterally offset from the air outlet 22, and the air permeable passage includes a connecting channel 23 formed between the outer bottom wall of the main unit 2 and the upper surface of the cup cover 4, and the connecting channel 23 extends laterally to connect the air outlet 22 with the cup cover hole 41.

[0060] It should be noted that the air outlet 22 and the cup cover hole 41 are laterally misaligned, which means that the horizontal projections of the air outlet 22 and the cup cover hole 41 do not overlap.

[0061] After the ozone diffuses out from the main unit 2 through the air outlet 22 , it enters the communication channel 23 , flows horizontally to the cup cover hole 41 under the guidance of the communication channel 23 , and enters the inside of the mixing cup 1 .

[0062] In another embodiment, if Figure 2 As shown, the bottom wall of the main unit 2 is provided with an axial hole 27 corresponding to the output shaft of the motor assembly 21, the air outlet 22 is formed between the axial hole 27 and the output shaft, and the cup cover hole 41 is opened at the center of the cup cover 4, so that the air outlet 22 corresponds to the cup cover hole 41 up and down, so as to shorten the distance between the air outlet 22 and the cup cover hole 41, and accelerate the ozone from the air outlet 22 into the cup cover hole 41. Alternatively, the air outlet 22 and the cup cover hole 41 can also be horizontally misaligned in the axis, but the partial overlap of the air outlet 22 and the cup cover hole 41 is not limited here.

[0063] Specifically, Figure 6 As shown, the outer bottom wall of the main unit 2 is provided with a laterally extending mating groove, and the area corresponding to the mating groove on the upper surface of the cup cover 4 is a plane. After the main unit 2 and the cup cover 4 are installed in place, the mating groove and the plane on the cup cover 4 cooperate to form a connecting channel 23.

[0064] Of course, a laterally extending matching groove may be provided on the upper surface of the cup cover 4, and the area of ​​the outer bottom wall of the host 2 corresponding to the matching groove may be a plane, so that the two cooperate to form a connecting channel 23. Alternatively, matching grooves may be provided on both the outer bottom wall of the host 2 and the upper surface of the cup cover 4, and after the two are installed, the upper and lower matching grooves are aligned to form a connecting channel 23 with a larger flow cross-sectional area, which is not limited here.

[0065] Taking the matching groove set on the outer bottom wall of the host 2 as an example, the matching groove can be formed by a partial upward depression of the outer bottom wall of the host 2, or a downward protruding rib can be set on the outer bottom wall of the host 2, and the matching groove is surrounded by the rib, which is not limited here.

[0066] In another example, a groove is provided on the upper surface of the cup cover for inserting the bottom end of the main unit, and the side wall and bottom wall of the groove are combined with the outer bottom wall of the main unit to form a communication channel.

[0067] Preferably, in this embodiment, the cup cover hole 41 is located at the center of the blending cup 1, and the air outlet 22 is eccentrically arranged on the main unit 2, so as to guide the ozone diffused from the main unit 2 to the central area of ​​the blending cup 1, and then enter the inner cavity of the blending cup 1 from the center of the blending cup 1. When the motor assembly 21 drives the stirring member 11 in the blending cup 1 to rotate, the stirring member 11 will stir the air in the blending cup 1 to flow around under the action of centrifugal force, thereby promoting the ozone entering the blending cup 1 to diffuse around and gradually permeate the entire inner cavity. Ozone enters the blending cup 1 from the center and diffuses evenly around, so that the distribution of ozone in the inner cavity of the blending cup 1 is more uniform, improving the sterilization effect of each area in the blending cup 1 and avoiding the generation of sterilization dead corners.

[0068] Of course, the cup cover hole 41 can also be eccentrically arranged with respect to the blending cup 1 , and at the same time, the air outlet 22 can be eccentrically arranged with respect to the blending cup 1 , or can be located at the center of the blending cup 1 , which is not limited here.

[0069] Embodiment 2: In this embodiment, as Figure 4 , Figure 5 As shown, the ventilation channel includes a communication channel 23 located inside the main body 2 and extending laterally along the inner bottom wall of the main body 2.

[0070] Ozone is generated at the ultraviolet lamp 3 inside the main unit 2, flows downward to the bottom wall of the main unit 2, and then flows horizontally under the guidance of the connecting channel 23. The air outlet 22 is the outlet of the connecting channel 23, and is discharged outside the main unit 2 through the air outlet 22.

[0071] Specifically, Figure 4 As shown, the inner bottom wall of the host 2 has a rib 24 protruding upwards. When the motor assembly 21 is installed in place, the top of the rib 24 abuts against the bottom wall of the motor assembly 21 to form a connecting passage 23. Alternatively, a groove recessed downwards may be provided on the inner bottom wall of the host 2, and the connecting passage 23 is formed by the groove and the bottom wall of the motor assembly 21. Alternatively, a rib or a groove is provided on the bottom wall of the motor assembly 21 to form a connecting passage 23 together with the plane of the inner bottom wall of the host 2 or the rib 24 or the groove, which is not limited here.

[0072] In a preferred embodiment, Figure 2 As shown, the distance between the bottom end of the ultraviolet lamp 3 and the bottom wall of the main unit 2 is H1, the height of the inner cavity of the main unit 2 is H2, and 1 / 10≤H1 / H2≤1 / 2.

[0073] Since the main unit 2 is located above the blending cup 1, and the ultraviolet lamp 3 is located inside the main unit 2, flowing downward into the inner cavity of the blending cup 1, it can be understood that the closer the ultraviolet lamp 3 is to the bottom wall of the main unit 2, the shorter the path of ozone entering the blending cup 1, the shorter the time it takes to enter the blending cup 1, and the faster the sterilization time. However, since the air outlet 22 is opened on the bottom wall of the main unit 2, the closer the ultraviolet lamp 3 is to the bottom wall of the main unit 2, the closer it is to the air outlet 22, and the greater the risk of ultraviolet rays irradiating into the blending cup 1 through the air outlet 22. Taking the above two factors into comprehensive consideration, the relationship between H1 and H2 is limited to 1 / 10≤H1 / H2≤1 / 2, which makes the ultraviolet lamp 3 closer to the bottom wall of the main unit 2, so that the flow path of ozone into the blending cup 1 is shorter, and ozone can enter the blending cup 1 in time and quickly for sterilization and disinfection, and ensures that the ultraviolet lamp 3 and the air outlet 22 are at a relatively safe distance, avoiding the ultraviolet rays emitted by the ultraviolet lamp 3 from being projected into the inside of the blending cup 1 through the air outlet 22 as much as possible.

[0074] As a preferred embodiment of the present invention, Figure 2 As shown, an installation space 25 is formed between the motor assembly 21 and the main unit 2. An isolation member is provided in the installation space 25. The isolation member divides the installation space 25 into a first chamber 251 and a second chamber 252 located below the first chamber 251. The ultraviolet lamp 3 is arranged in the second chamber 252.

[0075] Due to the large volume of the installation space 25, if the ozone generated by the ultraviolet lamp 3 does not rely on a blowing device but only relies on natural diffusion, it is necessary to first fill the installation space 25 and then flow downward into the mixing cup 1. This will cause the time for ozone to enter the mixing cup 1 to be seriously delayed, and the entire sterilization time will also last for a longer time.

[0076] The installation space 25 is divided into a first chamber 251 and a second chamber 252 which are arranged and isolated from each other in an upper and lower manner by an isolating member, and the ultraviolet lamp 3 is arranged in the second chamber 252, which not only makes the ultraviolet lamp 3 closer to the air outlet 22 on the bottom wall of the main unit 2, but also greatly reduces the volume of the chamber where the ultraviolet lamp 3 is located. The ozone generated by the ultraviolet lamp 3 can complete the filling of the second chamber 252 in a relatively short time and diffuse into the blending cup 1, so that the ozone generated in the body can enter the blending cup 1 more quickly and timely for sterilization, thereby greatly shortening the time required for sterilization and improving the user experience.

[0077] It should be noted that the present invention does not limit the structure of the isolation member, which includes but is not limited to the following embodiments:

[0078] Embodiment 1: In this embodiment, the motor assembly 21 includes a motor 211 , and the isolating member is a silicone pad sleeved on the outer periphery of the motor 211 , and the silicone pad extends outward to abut against the side wall of the host 2 .

[0079] By sleeved with a silicone pad on the outer periphery of the motor 211, the silicone pad is abutted against the side wall of the host 2 to form a seal, and the installation space 25 is divided into the first chamber 251 and the second chamber 252. The silicone pad can be elastically deformed when squeezed, and then after abutting against the side wall of the host 2, the tightness of the contact between the two can be improved, thereby improving the sealing effect, isolating the first chamber 251 and the second chamber 252, and concentrating the ozone generated by the ultraviolet lamp 3 in the second chamber 252. At the same time, the silicone pad on the outer periphery of the motor 211 can cooperate with the side wall of the host 2 to form an installation limit for the motor 211. When the motor 211 is installed inside the host 2, it is ensured that the motor 211 is coaxially installed with the host 2, avoiding the motor 211 from being offset from the host 2, and reducing the difficulty of assembly. After the motor 211 is installed, the silicone pad can also abut against the side wall of the host 2 around the circumference to form a limit, so that the motor 211 keeps the position fixed, avoiding the motor 211 from being offset, and improving the position stability of the motor 211.

[0080] In addition, the silicone pad can also be used as a shock absorber between the motor 211 and the housing of the host 2 to reduce the vibration transmitted from the motor 211 to the housing of the host 2, so that the user can get a better touch when holding the host 2, thereby improving the user experience.

[0081] Implementation method 2: In this implementation method, if Figure 7 As shown, the main machine 2 includes a main body and a step portion 26 whose outer diameter is enlarged relative to the main body. The motor assembly 21 includes a motor 211 located in the main body and a reduction gear box 212 fixed to the motor 211 and extending into the step portion 26. The housing of the reduction gear box 212 abuts against the step portion 26 to form an isolation member.

[0082] The step portion 26 is larger than the outer diameter of the main body, thereby leaving enough assembly space for the reduction box 212, facilitating the arrangement of the reduction box 212 and avoiding the cramped internal structure of the host 2. The outer diameter of the main body is relatively small, which can reduce the volume of this part of the host 2 while meeting the installation requirements of the motor 211, which helps to achieve miniaturization. At the same time, the small-sized main body is more convenient for users to grip and improve the user experience. The first chamber 251 and the second chamber 252 are separated by the contact between the housing of the reduction box 212 and the step portion 26, which simplifies the internal structure of the host 2. There is no need to add additional isolation parts. The reduction box 212 and the step portion 26 cooperate to form an isolation part, which optimizes the internal structure layout of the host 2, reduces the number of components, and saves costs.

[0083] The utility model does not limit the structure and shape of the ultraviolet lamp 3. In a preferred embodiment, Figure 2 , Figure 3 As shown, the ultraviolet lamp 3 includes a lamp tube, which is a straight tube vertically arranged on one side of the motor assembly 21.

[0084] The straight tube-shaped lamp is arranged vertically on one side of the motor assembly 21, which makes the overall volume of the ultraviolet lamp 3 smaller, saving costs while also occupying less space in the main unit 2. The extension direction of the lamp tube is consistent with the axial direction of the main unit 2, further saving the internal space of the main unit 2 and reducing the radial size of the main unit 2, making it easier for users to hold and use.

[0085] Of course, if Figure 7 As shown, the lamp tube may also be arranged transversely on one side of the motor assembly 21, which is not limited thereto.

[0086] In another embodiment, the ultraviolet lamp 3 includes a lamp tube, which is a curved tube arranged around the outer periphery of the motor assembly 21 .

[0087] The ultraviolet lamp 3 is a curved tube and is arranged around the motor assembly 21, which reasonably utilizes the space between the inner wall of the main unit 2 and the motor assembly 21, thereby optimizing the structural layout inside the main unit 2. At the same time, the curved tube structure extending circumferentially along the motor assembly 21 can also increase the length of the ultraviolet lamp 3 and the area covered by the ultraviolet lamp 3, thereby increasing the amount of ozone generated and improving the sterilization efficiency. In addition, the ultraviolet lamp 3 surrounds the outer periphery of the motor assembly 21, so that when the ultraviolet lamp 3 is turned on, ozone will be evenly produced on the peripheral side of the motor assembly 21, and then evenly enter the inside of the stirring cup 1 through the air outlet 22, and be evenly distributed around the stirring cup 1, thereby improving the uniformity of the distribution of ozone in the stirring cup 1, ensuring the thoroughness of sterilization and disinfection, and avoiding the generation of sterilization dead corners that lead to bacterial residues.

[0088] Preferably, the motor assembly 21 includes a motor 211 and a reduction box 212 fixed to the lower end of the motor 211 , the ultraviolet lamp 3 is located on one side of the reduction box 212 , and the ultraviolet lamp 3 is fixed to the side wall of the reduction box 212 or the side wall of the main machine 2 .

[0089] The ultraviolet lamp 3 can be fixed to the side wall of the reduction box 212 or the side wall of the main unit 2 according to the internal structure of the main unit 2. When the ultraviolet lamp 3 is fixed to the side wall of the reduction box 212, it is far away from the side wall of the main unit 2, which can reduce the ultraviolet rays projected to the outside through the side wall of the main unit 2. At the same time, a shielding structure can be further set between the ultraviolet lamp 3 and the side wall of the main unit 2 to shield the ultraviolet rays emitted laterally by the ultraviolet lamp 3.

[0090] When the ultraviolet lamp 3 is fixed to the side wall of the main unit 2, there is a gap between the ultraviolet lamp 3 and the reduction box 212, which can avoid direct contact between the reduction box 212 and the ultraviolet lamp 3 to transmit vibration to the ultraviolet lamp 3 and affect the installation stability of the ultraviolet lamp 3. A shock-absorbing structure can be further set between the ultraviolet lamp 3 and the reduction box 212 to further alleviate the vibration transmitted to the ultraviolet lamp 3 by the reduction box 212.

[0091] In a preferred embodiment, an ultraviolet blocking coating is provided on the shell of the main unit 2; or, a cup cover 4 is provided on the top of the blending cup 1 to support the main unit 2, and the cup cover 4 is provided with an ultraviolet blocking coating.

[0092] By coating the main body 2 shell or the cup cover 4 with an ultraviolet blocking coating, the ultraviolet rays emitted downward by the ultraviolet lamp 3 can be further blocked, reducing the risk of ultraviolet rays penetrating downward through the main body 2 shell and the cup cover 4 into the blender cup 1, and minimizing the ultraviolet rays entering the blender cup 1, thereby providing the user with a better viewing experience and eye comfort when observing the food in the blender cup 1.

[0093] Preferably, the cup cover 4 is provided with an installation groove with an opening facing upward for installing the host 2. When the host 2, the cup cover 4, the stirring cup 1 and the stirring member 11 are installed in place, the ultraviolet lamp 3 can be partially or completely sunk into the installation groove of the cup cover 4, or can be located outside the installation groove, and the utility model does not make specific limitations.

[0094] Preferably, the bottom wall of the main unit 2 is provided with a convex bump protruding upward at a position directly below the ultraviolet lamp 3 .

[0095] The setting of the convex hull increases the wall thickness of the bottom wall of the main unit 2 corresponding to the ultraviolet lamp 3, thereby increasing the difficulty of ultraviolet rays penetrating the convex hull area. The increase in wall thickness changes the light-shielding performance of the area, thereby improving the ultraviolet blocking effect.

[0096] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0097] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0098] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A meat grinder, comprising a stirring cup, a stirring element installed in the stirring cup, and a main machine installed above the stirring cup, wherein a motor assembly for driving the stirring element is provided in the main machine, characterized in that: An ultraviolet lamp is also provided inside the main unit, and the ultraviolet lamp generates ozone inside the main unit. An air outlet connected to the inner cavity of the mixing cup is opened on the bottom wall of the main unit, and the air outlet does not overlap with the horizontal projection of the ultraviolet lamp, and the bottom end of the ultraviolet lamp is arranged higher than the top end of the air outlet.

2. A meat grinder according to claim 1, characterized in that: A ventilation channel is provided between the main unit and the blending cup, and ozone in the main unit enters the inner cavity of the blending cup along the ventilation channel.

3. A meat grinder according to claim 2, characterized in that: The upper cover of the blending cup is provided with a cup cover to support the main unit, the cup cover is provided with a cup cover hole which is laterally offset from the air outlet, the air permeable passage comprises a connecting passage formed between the outer bottom wall of the main unit and the upper surface of the cup cover, the connecting passage extends laterally to connect the air outlet with the cup cover hole.

4. A meat grinder according to claim 3, characterized in that: The outer bottom wall of the main unit is provided with an upwardly recessed matching groove, which extends transversely to connect the air outlet and the cup cover hole, and the matching groove cooperates with the upper surface of the cup cover to form the connecting channel.

5. A meat grinder according to claim 2, characterized in that: The ventilation channel includes a communication channel located inside the main unit and extending laterally along the inner bottom wall of the main unit.

6. A meat grinder according to claim 5, characterized in that: The bottom wall of the motor assembly and the inner bottom wall of the main unit are combined to form the communication channel. One end of the communication channel is arranged close to the ultraviolet lamp, and the other end is communicated with the air outlet.

7. A meat grinder according to claim 1, characterized in that: The distance between the bottom end of the ultraviolet lamp and the bottom wall of the main unit is H1, the height of the inner cavity of the main unit is H2, and 1 / 10≤H1 / H2≤1 / 2.

8. A meat grinder according to claim 1, characterized in that: An installation space is formed between the motor assembly and the host, and an isolation member is provided in the installation space. The isolation member divides the installation space into a first chamber and a second chamber located below the first chamber, and the ultraviolet lamp is arranged in the second chamber.

9. A meat grinder according to claim 8, characterized in that: The motor assembly includes a motor, and the isolating member is a silicone pad sleeved on the outer periphery of the motor, and the silicone pad extends outward to abut against the side wall of the host; Alternatively, the main machine includes a main body and a step portion located below the main body and enlarged relative to the outer diameter of the main body, the motor assembly includes a motor located in the main body and a reduction gear box fixed to the motor and extending into the step portion, and the housing of the reduction gear box abuts against the step portion to form the isolation member.

10. A meat grinder according to claim 1, characterized in that: The ultraviolet lamp comprises a lamp tube, and the lamp tube is a straight tube vertically arranged on one side of the motor assembly; Alternatively, the ultraviolet lamp comprises a lamp tube, and the lamp tube is a curved tube arranged around the outer periphery of the motor assembly; Alternatively, the motor assembly includes a motor and a reduction box fixed at the lower end of the motor, the ultraviolet lamp is located on one side of the reduction box, and the ultraviolet lamp is fixed on the side wall of the reduction box or the side wall of the main machine.

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