Meat grinder with good sterilization effect

Abstract

The utility model discloses a meat grinder with a good sterilization effect, which comprises a stirring cup, a stirring piece arranged in the stirring cup and a main machine arranged above the stirring cup, a motor assembly for driving the stirring piece is arranged in the main machine, a fan and an ultraviolet lamp are arranged in the main machine, and the ultraviolet lamp enables ozone to be generated in the main machine. An air outlet communicated with the stirring cup is formed in the bottom wall of the main machine, the ultraviolet lamp is closer to the air outlet than the fan, and the fan blows air towards the ultraviolet lamp so that ozone can enter the stirring cup from the air outlet. According to the meat grinder provided by the utility model, ozone can be generated in the main machine under the irradiation of the ultraviolet lamp, and the ozone enters the stirring cup to sterilize and disinfect the interior of the stirring cup, so that the sterilization of the meat grinder is realized. In addition, due to the fact that the density of the ozone is larger than that of the air, the ozone can naturally flow downwards, meanwhile, the fan blows air towards the ultraviolet lamp, under the wind force of the fan, the ozone can diffuse and flow towards the stirring cup more rapidly, and the time that the ozone enters the stirring cup can be shortened.

Description

Technical Field

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

[0002] In order to prevent the food from overflowing from the gap between the cup cover and the mouth of the mixing cup during the beating process, the existing meat grinders are generally designed with a sealing ring on the cup cover to reduce the matching gap between the mixing cup and the cup cover. Although this has a sealing effect when the meat grinder is beating, it also greatly affects the air permeability of the mixing cup. After using and cleaning the meat grinder, the user will assemble the machine in place for storage. If the user does not wipe or dry the cup body, bacteria will remain in the cup body. In the case of poor air permeability, bacteria will multiply rapidly and cause mold, odor, etc., which brings a lot of inconvenience to users. Therefore, it is necessary to develop a meat grinder with sterilization and disinfection functions.

[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] It can be seen that UV lamps are mostly used in baby food machines, milk churners and other infant products that have high sterilization requirements, while conventional meat grinders rarely have sterilization functions. In addition, UV penetration and radiation range are limited. When blocked by foreign objects, the sterilization effect is greatly reduced. Therefore, when the entire inner cavity of the baby food cup is disinfected, there are still problems of incomplete and incomplete sterilization in places where the baby food cup cannot be irradiated, as well as slow overall sterilization efficiency and long sterilization time.

[0005] Chinese patent application number 202320563865.3 discloses a material storage device and a food processing machine with good sterilization effect. The sterilization device realizes the dual sterilization effects of ultraviolet sterilization and ozone sterilization. Since the air dispersion structure is set at the air outlet above the connecting channel, and the density of ozone is greater than that of air and cannot rise freely, the discharge of ozone from the air outlet needs to rely entirely on the air dispersion structure, which makes it difficult to discharge air, and the amount of ozone discharged from the connecting channel is low. The diffusion rate of ozone in the material holding chamber is slow, and there is a problem of long sterilization time.

[0006] Therefore, there is an urgent need for a meat grinder that can sterilize and also has higher sterilization efficiency. Utility Model Content

[0007] The utility model provides a meat grinder with good sterilization effect, which solves the problem that bacteria are easy to breed in the cup of the meat grinder and the ozone diffuses slowly into the mixing cup and the sterilization efficiency is low.

[0008] To achieve the above-mentioned purpose, the utility model provides a meat grinder with good sterilization effect, 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. The interior of the main unit includes a fan and an ultraviolet lamp. The ultraviolet lamp generates ozone in the main unit. An air outlet connected to the stirring cup is provided on the bottom wall of the main unit. The ultraviolet lamp is arranged closer to the air outlet than the fan. The fan blows air toward the ultraviolet lamp so that ozone enters the stirring cup from the air outlet.

[0009] 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 to sterilize and disinfect the inside of the mixing cup, thereby achieving the sterilization of the meat grinder and alleviating the problem of bacteria easily breeding in the mixing cup. In addition, since the main unit is above the mixing cup and the ultraviolet lamp is located in the main unit, when the ultraviolet lamp generates ozone in the main unit, since the density of ozone is greater than the density of air, it will naturally flow downwards. At the same time, the fan blows toward the ultraviolet lamp. With the wind force of the fan, the ozone can diffuse and flow toward the mixing cup more quickly, thereby greatly shortening the time for ozone to enter the mixing cup, thereby shortening the entire sterilization time and improving the efficiency of sterilization and disinfection. The utility model utilizes the density characteristics of ozone, and while it naturally flows downwards, the fan is used to additionally blow ozone, thereby significantly improving the flow efficiency of ozone toward the mixing cup.

[0010] In addition, since the UV lamp is closer to the air outlet than the fan, the wind blown by the fan will flow through the UV lamp, which not only makes the ozone generated by the UV lamp flow toward the air outlet as much as possible, but also reduces the probability of ozone escaping away from the air outlet, improves the utilization rate of ozone, and improves the sterilization effect. Moreover, the wind blown by the fan flows through the UV lamp, which can also play a role in cooling the UV lamp, avoiding excessive temperature rise when the UV lamp works for a long time, and helping to increase the service life of the UV lamp.

[0011] Preferably, the fan is located above the air outlet, and the central axis of the fan is located within the horizontal projection range of the air outlet.

[0012] At least a portion of the air outlet is aligned with the fan up and down, so that at least a portion of the wind blown by the fan carrying ozone will be directly discharged to the outside of the main unit through the air outlet, thereby improving the ozone discharge efficiency, reducing the obstruction of the bottom wall of the main unit to the wind flow and ozone, reducing the resistance encountered during the ozone flow, ensuring the flow efficiency of ozone, and allowing ozone to enter the blender cup more quickly and timely.

[0013] Preferably, an air collecting channel is also provided in the main unit, and the ultraviolet lamp and the fan are both located in the air collecting channel; alternatively, an air collecting channel is also provided in the main unit, the ultraviolet lamp is located in the air collecting channel, and the fan is located outside the air collecting channel and arranged toward the inner cavity of the air collecting channel.

[0014] The fan and the UV lamp are both located in the air collecting channel, so that the ozone generated by the UV lamp and the wind blown out by the fan are concentrated in the air collecting channel and will not escape into the entire main engine cavity. The wind blown out by the fan carries the ozone in the air collecting channel and flows directly along the air collecting channel to the air outlet, further shortening the time for ozone to be discharged from the air outlet and improving the flow efficiency of ozone.

[0015] When the UV lamp is located in the air collecting channel and the fan is located outside the air collecting channel, part of the airflow blown by the fan enters the air collecting channel, pushing the ozone to flow toward the air outlet, and the other part of the airflow diffuses outside the air collecting channel and flows in the inner cavity of the main unit. This part of the airflow can contact the motor assembly, play a certain air cooling effect on the motor assembly, and accelerate the heat dissipation of the motor assembly.

[0016] In addition, the UV lamp is located in the air collecting channel, and the channel wall of the air collecting channel can also block the ultraviolet rays emitted by the UV lamp, reducing the ultraviolet rays projected from the side walls of the main unit casing, thereby reducing the impact of ultraviolet rays on the user's eyes and improving the user's eye comfort when using and observing the meat grinder.

[0017] Preferably, the wind collecting channel extends from top to bottom, and includes a wind collecting section that contracts toward the air outlet.

[0018] The air gathering section shrinks at the air outlet, making the flow area of ​​the air collection channel at the air outlet smaller than the flow area of ​​the upper part of the air collection channel, so that the wind flow and ozone converge and integrate when flowing to the air gathering section in the air collection channel, and escape from the air outlet at a faster flow rate. This not only increases the concentration of ozone escaping from the air outlet, but also increases the speed of ozone outflow, so that a higher concentration of ozone can be delivered to the mixing cup in a shorter time, further improving the sterilization efficiency, improving the thoroughness of sterilization, and shortening the sterilization time.

[0019] Preferably, the main unit includes a shell and a bottom cover fixed at the bottom end of the shell, the air outlet is located on the bottom cover, the outer diameter of the shell expands from top to bottom to form a step portion, the step surface of the step portion is provided with an air inlet and ribs arranged around the air inlet, and the ribs extend toward the bottom cover to form an air collecting channel to accommodate the fan.

[0020] The outer diameter of the housing is smaller in the area above the step, and larger in the area below the step. The area below the step corresponds to the reducer of the motor assembly, leaving enough assembly space for the reducer, facilitating the arrangement of the reducer and avoiding the cramped internal structure of the host. The smaller outer diameter of the upper area helps to miniaturize the host, and the smaller size also makes it easier for users to grip and improve the user experience.

[0021] The wind collecting channel extends up and down, and the air inlet is opened on the step surface, that is, the top of the wind collecting channel, so that the external wind flow enters the wind collecting channel from top to bottom and flows downward in the wind collecting channel. The overall wind flow path always flows from top to bottom, and the wind flow does not need to change its flow direction, thereby making the wind flow have better flow efficiency, reducing wind resistance and kinetic energy loss along the way, so that the wind flow has a better driving effect on ozone and accelerates the flow of ozone to the outlet. In addition, the setting of the surrounding reinforcement not only encloses the wind collecting channel, but also plays a positioning role in the installation of the fan, ensuring that the fan is installed in place and reducing the difficulty of assembly.

[0022] Preferably, a mounting seat is provided in the main unit, the mounting seat has a mounting groove with an opening facing upward to accommodate the ultraviolet lamp, and a ventilation hole is provided on the bottom wall of the mounting groove.

[0023] The UV lamp is sunken into the installation slot, which can also play a certain role in collecting the airflow, so that the airflow and ozone blown by the fan flow in the installation slot and flow out to the air outlet through the air vents on the bottom wall of the installation slot. At the same time, the side walls of the installation slot can also block the ultraviolet rays emitted horizontally by the UV lamp, reducing the ultraviolet rays projected from the side walls of the main body shell.

[0024] Preferably, the air outlet is butt-jointed with the air vent; or, the bottom wall of the main unit is provided with a retaining rib protruding upwardly around the air outlet, and the top end of the retaining rib is inserted into the air vent; or, the mounting groove has a wind gathering section that contracts from top to bottom.

[0025] The air outlet and the air vent are connected to each other, so that the ozone in the installation groove can directly enter the air outlet from the air vent, reducing the ozone from the air vent and the air outlet. As a result, as much ozone as possible in the installation groove can flow out from the air outlet, thereby improving the utilization rate of ozone. The retaining rib is inserted into the air vent, so that the air outlet and the air vent are connected by plugging, which not only improves the connection effect between the air vent and the air outlet and reduces the ozone escape, but also plays a positioning role during assembly. The assembly can be completed by plugging the retaining rib with the air outlet. The wind gathering section can accelerate the flow of ozone in the installation groove, and gather the ozone in the installation groove to increase the ozone concentration, so that a higher concentration of ozone can quickly flow out of the air vent, thereby improving the sterilization efficiency.

[0026] Preferably, the main unit includes a step portion expanding from top to bottom, the step surface of the step portion is provided with an air inlet and ribs arranged around the air inlet, and the fan is fixed on the inner side of the ribs or the inner side of the step surface; or, the motor assembly includes a motor and a reduction gear box fixed to the bottom of the motor, and the fan is fixed to the side wall of the reduction gear box; or, the fan is fixed to the side wall of the main unit shell.

[0027] The reinforcement encloses the installation space for installing the fan, and fixes the fan in the installation space, which is convenient for positioning and fixing the fan and reduces the difficulty of installation. In actual operation, the fan can be selectively fixed on the step surface or the reinforcement. When the fan is fixed to the side wall of the host, there is a gap between the fan and the reduction box, which can prevent the reduction box from directly contacting the fan and transmitting vibration to the fan, causing the fan to resonate and affecting the installation stability of the fan.

[0028] Preferably, the fan is located above the UV lamp.

[0029] The fan is above the UV lamp, and the wind blows downward, which is consistent with the natural downward flow of ozone, thereby further accelerating the efficiency of ozone flowing to the outlet, making the ozone flow more concentratedly in one direction, and reducing the free diffusion of ozone in the entire host cavity.

[0030] Preferably, the bottom wall of the main unit is provided with an axial hole corresponding to the output shaft of the motor assembly, the upper cover of the blending cup is provided with a cup cover, the bottom wall of the main unit is supported above the cup cover, the cup cover is provided with a cup cover hole corresponding to the axial hole, the air outlet is located on one side of the axial hole, and a connecting channel is connected between the air outlet and the cup cover hole; or, the bottom wall of the main unit is provided with an axial hole corresponding to the output shaft of the motor assembly, the upper cover of the blending cup is provided with a cup cover, the cup cover is provided with a cup cover hole corresponding to the axial hole, a fitting gap is generated between the output shaft and the axial hole, and the fitting gap forms the air outlet; or, the bottom wall of the main unit is provided with an axial hole corresponding to the output shaft of the motor assembly, the upper cover of the blending cup is provided with a cup cover, the cup cover is provided with a cup cover hole corresponding to the axial hole, the air outlet is located on one side of the axial hole, and the cup cover is provided with a second cup cover hole opposite to the air outlet.

[0031] The connecting channel can guide the ozone at the air outlet, guiding the ozone in the main unit to the central area of ​​the blender cup, and then entering 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, thereby making the distribution of ozone in the inner cavity of the blender cup more uniform, improving the sterilization effect of each area in the blender cup, and avoiding the generation of sterilization dead corners.

[0032] The shaft hole on the bottom wall of the main unit is used as the outlet of the output shaft and forms an air outlet with the output shaft for discharging ozone in the main unit, so that the transmission connection between the main unit and the stirring member, and the connection between the main unit and the ozone in the stirring cup share one opening, which reduces the number of openings on the bottom wall of the main unit, simplifies the structure of the main unit, and reduces the difficulty of processing. In addition, the cup cover hole is generally provided with an anti-overflow structure for preventing food from overflowing from the stirring cup. The air outlet and the shaft hole are aligned with the cup cover hole up and down. The anti-overflow structure can also prevent food from overflowing from the cup cover hole to the air outlet, and there is no need to set an additional anti-overflow structure at the air outlet.

[0033] The cup cover hole corresponds to the shaft hole up and down, and is used for transmission connection between the output shaft and the stirring member. The second cup cover hole corresponds to the air outlet up and down, and is used for the ozone in the main unit to enter the stirring cup. The air outlet can be flexibly selected to be set on the bottom wall of the main unit according to the setting position of the ultraviolet lamp and the spatial layout inside the main unit. The second cup cover hole is set corresponding to the air outlet, so that the communication path between the two is shorter. After the ozone is discharged from the air outlet, it can directly enter the stirring cup through the second cup cover hole, reducing the kinetic energy loss of ozone during flow, allowing ozone to enter the stirring cup more quickly, and improving the sterilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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:

[0035] Figure 1 This is a cross-sectional view of a meat grinder according to one embodiment of the utility model;

[0036] Figure 2 for Figure 1 A cross-sectional view of the main unit and cup cover;

[0037] Figure 3 for Figure 2 Magnified view of area A in the middle;

[0038] Figure 4 This is a schematic structural diagram of a housing in one embodiment of the utility model;

[0039] Figure 5 This is a schematic structural diagram of a mounting base in one embodiment of the utility model;

[0040] Figure 6 This is a schematic structural diagram of the lower side of the bottom cover in one embodiment of the utility model;

[0041] Figure 7 This is a schematic structural diagram of the inner side of the bottom wall of the main machine in one embodiment of the utility model;

[0042] Figure 8 This is a structural explosion view of the host and the cup cover in one embodiment of the utility model.

[0043] in:

[0044] 1 mixing cup; 11 mixing parts;

[0045] 2 main engine; 21 motor assembly; 211 motor; 212 reduction box; 22 air outlet; 221 retaining rib; 23 step portion; 231 air inlet; 232 surrounding rib; 24 shaft hole; 25 connecting channel; 26 air collecting channel; 261 air collecting section; 27 mounting seat; 271 mounting groove; 272 air vent; 28 housing; 29 bottom cover;

[0046] 3 UV lamp; 31 lamp holder; 32 lamp tube;

[0047] 4 fans;

[0048] 5 cup lids; 51 cup lid holes. DETAILED DESCRIPTION

[0049] 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.

[0050] In the description of the present invention, it is necessary to understand that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0051] 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.

[0052] like Figure 1 , Figure 2As shown, a meat grinder with good sterilization effect includes a mixing cup 1, a mixing piece 11 installed in the mixing cup 1, and a main unit 2 installed above the mixing cup 1. The main unit 2 is provided with a motor assembly 21 for driving the mixing piece 11. The interior of the main unit 2 includes a fan 4 and an ultraviolet lamp 3. The ultraviolet lamp 3 generates ozone in the main unit 2. An air outlet 22 connected to the mixing cup 1 is provided on the bottom wall of the main unit 2. The ultraviolet lamp 3 is arranged closer to the air outlet 22 than the fan 4. The fan 4 blows air toward the ultraviolet lamp 3 to allow ozone to enter the mixing cup 1 from the air outlet 22.

[0053] The meat grinder provided by the utility model has an ultraviolet lamp 3 arranged 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 to sterilize and disinfect the inside of the mixing cup 1, thereby sterilizing the meat grinder and alleviating the problem of bacteria easily breeding in the mixing cup 1.

[0054] 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.

[0055] Since the main unit 2 is 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 1, since the density of ozone is greater than the density of air, it will naturally flow downwards, and at the same time, the fan 4 blows toward the ultraviolet lamp 3. With the wind force of the fan 4, the ozone can diffuse and flow toward the blending cup 1 more quickly, thereby greatly shortening the time for ozone to enter the blending cup 1, thereby shortening the entire sterilization time and improving the efficiency of sterilization. The utility model utilizes the density characteristics of ozone, and while it naturally flows downwards, the fan 4 is used to additionally blow ozone, thereby significantly improving the flow efficiency of ozone toward the blending cup 1.

[0056] In the patent scheme with patent application number 202320563865.3, ozone flows upward with the help of the wind dispersion structure, which is contrary to the characteristic that ozone density is greater than air and can flow downward naturally. Therefore, although the utility model also uses ozone for sterilization, the flow path of ozone is opposite to that of the patent, and the sterilization method and sterilization efficiency are completely different from those of the patent. In the scheme of the utility model, due to its own density characteristics and the wind force of the fan 4, the ozone has a higher flow efficiency, can escape into the mixing cup 1 more quickly, and has a higher sterilization efficiency.

[0057] In addition, since the ultraviolet lamp 3 is closer to the air outlet 22 than the fan 4, the wind blown by the fan 4 will flow through the ultraviolet lamp 3, which not only makes the ozone generated by the ultraviolet lamp 3 flow toward the air outlet 22 as much as possible, but also reduces the probability of ozone escaping away from the air outlet 22, thereby improving the utilization rate of ozone and improving the sterilization effect. Moreover, the wind blown by the fan 4 flows through the ultraviolet lamp 3, which can also play the effect of air cooling and heat dissipation on the ultraviolet lamp 3, avoiding excessive temperature rise when the ultraviolet lamp 3 works for a long time, and helping to improve the service life of the ultraviolet lamp 3.

[0058] Preferably, in order to make the wind flow blown by the fan 4 flow downward in a concentrated manner, the utility model adopts an axial flow fan. Of course, the fan 4 can also be a centrifugal fan as needed, which is not limited here, as long as it can blow the wind flow downward.

[0059] As a preferred embodiment of the present invention, Figure 2 , Figure 3 As shown, the fan 4 is located above the air outlet 22 , and the central axis of the fan 4 is located within the horizontal projection range of the air outlet 22 .

[0060] At least a portion of the air outlet 22 is aligned with the fan 4 up and down, so that at least a portion of the wind blown out by the fan 4 carrying ozone will be directly discharged to the outside of the main unit 2 through the air outlet 22, thereby improving the ozone discharge efficiency, reducing the obstruction of the bottom wall of the main unit 2 to the wind flow and ozone, reducing the resistance encountered during the ozone flow process, ensuring the flow efficiency of ozone, and allowing ozone to enter the blending cup 1 more quickly and timely.

[0061] Preferably, if Figure 3 As shown, the central axis of the fan 4 coincides with the central axis of the air outlet 22, so that the fan 4 is arranged opposite to the air outlet 22. Of course, the central axis of the fan 4 can also deviate from the central axis of the air outlet 22, but a part of the fan 4 still faces the air outlet 22, so that part of the wind can be blown directly downward out of the air outlet 22.

[0062] It should be noted that, in this embodiment, at least a portion of the fan 4 is aligned with the air outlet 22 in the vertical direction. However, the utility model does not limit the location of the ultraviolet lamp 3. In one embodiment, Figure 3As shown, the fan 4, the ultraviolet lamp 3 and the air outlet 22 are all coaxially arranged so that the wind flow blown by the fan 4 flows evenly through the ultraviolet lamp 3, which helps to completely blow the ozone generated by the ultraviolet lamp 3 to the air outlet 22 below. In another embodiment, the lateral projection of the ultraviolet lamp 3 is staggered with the air outlet 22 so that the ultraviolet rays irradiated downward by the ultraviolet lamp 3 will not be directly emitted from the air outlet 22, so that the bottom wall of the main unit 2 has a certain shielding effect on the ultraviolet rays irradiated downward by the ultraviolet lamp 3, thereby reducing the ultraviolet rays irradiated into the mixing cup 1 and reducing the impact of ultraviolet rays on the user's eyes when the user uses the meat grinder.

[0063] Preferably, if Figure 3 As shown, the host 2 is further provided with an air collecting channel 26, but the utility model does not limit the positional relationship between the fan 4, the ultraviolet lamp 3 and the air collecting channel 26, which can be one of the following embodiments:

[0064] Implementation method 1: In this implementation method, Figure 3 As shown, the ultraviolet lamp 3 and the fan 4 are both located in the air collecting channel 26 .

[0065] The fan 4 and the ultraviolet lamp 3 are both located in the wind collecting channel 26, so that the ozone generated by the ultraviolet lamp 3 and the wind blown out by the fan 4 are concentrated in the wind collecting channel 26, and will not escape into the entire inner cavity of the main unit 2. The wind blown out by the fan 4 carries the ozone in the wind collecting channel 26 and flows directly along the wind collecting channel 26 to the air outlet 22, further shortening the time for ozone to be discharged from the air outlet 22 and improving the flow efficiency of ozone.

[0066] Embodiment 2: In this embodiment, the ultraviolet lamp 3 is located in the air collecting channel 26 , and the fan 4 is located outside the air collecting channel 26 and is arranged toward the inner cavity of the air collecting channel 26 .

[0067] The ultraviolet lamp 3 is located in the wind collecting channel 26, and the fan 4 is located outside the wind collecting channel 26. A part of the wind flow blown out by the fan 4 enters the wind collecting channel 26, pushing the ozone to flow toward the air outlet 22, and the other part of the wind flow diffuses to the outside of the wind collecting channel 26 and flows in the inner cavity of the main unit 2. This part of the wind flow can contact the motor assembly 21, play a certain air cooling effect on the motor assembly 21, and accelerate the heat dissipation of the motor assembly 21.

[0068] In the above-mentioned Embodiment 1 and Embodiment 2, no matter the fan 4 is located inside or outside the air collecting channel 26, the ultraviolet lamp 3 is located inside the air collecting channel 26. Such arrangement enables the channel wall of the air collecting channel 26 to shield the ultraviolet light emitted by the ultraviolet lamp 3, reduce the ultraviolet light projected from the side wall of the housing of the host 2, thereby reducing the impact of ultraviolet light on the user's eyes, and improving the user's eye comfort when using and observing the meat grinder.

[0069] Specifically, Figure 8 As shown, the ultraviolet lamp 3 includes a lamp tube 32 and a lamp holder 31. The lamp tube 32 and the lamp holder 31 can be completely in the air collecting channel 26, or the lamp tube 32 can be completely in the air collecting channel 26, and at least part of the lamp holder 31 is located outside the air collecting channel 26, so as to facilitate the installation, fixing and wiring of the ultraviolet lamp 3. Since the lamp holder 31 does not emit light, even outside the air collecting channel 26, no ultraviolet rays will be irradiated to the outside of the main unit 2, and no ozone will be generated outside the air collecting channel 26.

[0070] In addition, the fan 4 includes blades and a housing. In the first embodiment, the blades and the housing can be both located in the air collecting passage 26, or the blades can be located in the air collecting passage 26, while at least part of the housing can be located outside the air collecting passage 26, so as to facilitate installation. In the second embodiment, the blades only need to be located outside the air collecting passage 26, and the position of the housing is not limited.

[0071] Furthermore, if Figure 3 As shown, the air collecting channel 26 extends from top to bottom, and includes an air collecting section 261 that contracts toward the air outlet 22 .

[0072] The wind gathering section 261 contracts at the air outlet 22, so that the flow area of ​​the wind collecting channel 26 at the air outlet 22 is smaller than the flow area of ​​the upper part of the wind collecting channel 26, so that the wind flow and ozone converge and integrate when flowing to the wind gathering section 261 in the wind collecting channel 26, and escape from the air outlet 22 at a faster flow rate. This not only increases the concentration of ozone escaping from the air outlet 22, but also increases the speed of ozone outflow, so that a higher concentration of ozone can be delivered to the mixing cup 1 in a shorter time, further improving the sterilization efficiency, improving the thoroughness of sterilization, and shortening the sterilization time.

[0073] As a preferred embodiment of the present invention, Figure 2 , Figure 3 , Figure 4 As shown, the main unit 2 includes a shell 28 and a bottom cover 29 fixed to the bottom end of the shell 28, the air outlet 22 is located on the bottom cover 29, the outer diameter of the shell 28 is enlarged from top to bottom to form a step portion 23, the step surface of the step portion 23 is provided with an air inlet 231 and a rib 232 arranged around the air inlet 231, and the rib 232 extends toward the bottom cover 29 to form an air collecting channel 26 for accommodating the fan 4.

[0074] The outer diameter of the housing 28 is smaller in the area above the step portion 23, and larger in the area below the step portion 23. The area above the step portion 23 corresponds to the motor 211 of the motor assembly 21, and the area below the step portion 23 corresponds to the reduction box 212 of the motor assembly 21, 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 smaller outer diameter of the upper area helps to miniaturize the host 2, and the smaller size also makes it easier for users to grip and improve the user experience.

[0075] The wind collecting channel 26 extends up and down, and the air inlet 22 is opened on the step surface, that is, the top of the wind collecting channel 26, so that the external wind flow enters the wind collecting channel 26 from top to bottom and flows downward in the wind collecting channel 26. The overall wind flow path always flows from top to bottom, and the wind flow does not need to change its flow direction, thereby making the wind flow have better flow efficiency, reducing wind resistance and kinetic energy loss along the way, so that the wind flow has a better driving effect on ozone and accelerates the flow of ozone to the air outlet 22. In addition, the setting of the surrounding ribs 232 not only encloses the wind collecting channel 26, but also plays a positioning role in the installation of the fan 4, ensuring that the fan 4 is installed in place and reducing the difficulty of assembly.

[0076] Preferably, the lower end of the rib 232 contracts toward the inside of the air collecting channel 26 to form a wind collecting section 261 at the air outlet 22 , thereby reducing the flow cross-sectional area of ​​the air collecting channel 26 near the air outlet 22 and accelerating the passage of ozone through the air outlet 22 .

[0077] In one embodiment, the ribs 232 extend downward and the bottom ends of the ribs 232 abut against the inner walls of the bottom cover 29, so that the inner top wall of the step portion 23, the ribs 232 and the inner walls of the bottom cover 29 form a relatively closed air collecting channel 26. The air collecting channel 26 is isolated from other spaces in the inner cavity of the main unit 2, so that ozone and wind can only diffuse and flow in the air collecting channel 26 and will not escape from the air collecting channel 26, thereby allowing ozone to flow into the blender cup 1 from the air outlet 22 as much as possible, thereby reducing ozone loss and improving utilization.

[0078] In another embodiment, if Figure 2 , Figure 3 , Figure 4 As shown, there is a gap between the bottom end of the rib 232 and the inner wall of the bottom cover 29, so as to better guide the airflow blown out by the fan 4 while simplifying the internal structure of the main unit 2, reducing the processing difficulty and saving costs.

[0079] Preferably, if Figure 3 , Figure 5 , Figure 8 As shown, a mounting seat 27 is disposed in the main body 2 , and the mounting seat 27 has a mounting groove 271 with an opening facing upward to accommodate the ultraviolet lamp 3 , and a vent 272 is disposed on the bottom wall of the mounting groove 271 .

[0080] The ultraviolet lamp 3 is sunk into the mounting groove 271, and the mounting groove 271 can also play a certain role in collecting the wind flow, so that the wind flow and ozone blown out by the fan 4 flow in the mounting groove 271, and flow out to the air outlet 22 through the air vent 272 on the bottom wall of the mounting groove 271. At the same time, the side wall of the mounting groove 271 can also block the ultraviolet rays emitted laterally by the ultraviolet lamp 3, reducing the ultraviolet rays projected from the side wall of the housing of the host 2.

[0081] The embodiments of the ribs 232 and the mounting seat 27 can be implemented separately, that is, only the ribs 232 can be provided in the main unit 2 to enclose the air collecting channel 26, or only the mounting seat 27 can be provided to form the air collecting channel 26 through the mounting groove 271. Figure 3 As shown, the main unit 2 is enlarged in outer diameter from top to bottom to form a step portion 23, the step surface of the step portion 23 is provided with an air inlet 231 and a rib 232 arranged around the air inlet 231, and the groove side wall of the mounting groove 27 is plugged into and matched with the rib 232 to enclose an air collecting channel 26.

[0082] After the side walls of the mounting groove 271 are plugged into the ribs 232, not only a relatively closed air collecting channel 26 is formed inside the main unit 2, but also the side of the ultraviolet lamp 3 is fully shielded, so that the ultraviolet rays emitted laterally by the ultraviolet lamp 3 can be shielded by the side walls of the mounting groove 271 and / or the ribs 232, thereby reducing the ultraviolet rays projected onto the side walls of the main unit 2 and reducing the impact of ultraviolet rays on the user's eyes.

[0083] The mounting seat 27 can be fixed to the bottom wall of the host 2 by means of screws, buckles, etc., and can also be fixed to the side wall of the motor assembly 21 or the inner wall of the host 2, which is not limited here.

[0084] Furthermore, in one embodiment, the air outlet 22 is connected to the air vent 272. The air outlet 22 is connected to the air vent 272 so that the ozone in the mounting groove 271 can directly enter the air outlet 22 from the air vent 272, thereby reducing the escape of ozone from between the air vent 272 and the air outlet 22, and allowing the ozone in the mounting groove 271 to flow out from the air outlet 22 as much as possible, thereby improving the utilization rate of ozone.

[0085] Specifically, the air outlet 22 abuts against the bottom wall of the mounting groove 271 from below the mounting groove 271, so that the air outlet 22 and the air vent 272 are directly connected to each other, reducing the escape of ozone from the gap between the two. Alternatively, the mounting seat 27 can be fixedly connected to the bottom wall of the host 2 to form a pre-tightening force between the two, so that the contact between the two is closer and the sealing performance is guaranteed.

[0086] In another embodiment, if Figure 3As shown, a retaining rib 221 is protruded upward from the bottom wall of the main body 2 and surrounds the air outlet 22 , and the top end of the retaining rib 221 is inserted into the air vent 272 .

[0087] The retaining rib 221 is inserted into the air vent 272, so that the air outlet 22 and the air vent 272 are connected by plugging, which not only improves the connection effect between the air vent 272 and the air outlet 22 and reduces ozone emission, but also plays a positioning role during assembly. The assembly can be completed by plugging the retaining rib 221 and the air outlet 22.

[0088] Of course, a convex rib surrounding the air vent 272 and protruding downward may be provided on the mounting seat 27 so as to be inserted into the air outlet 22 to achieve plug-in fit between the air vent 272 and the air outlet 22, which is not limited here.

[0089] Preferably, if Figure 3 As shown, the mounting groove 271 has a wind gathering section 261 that contracts from top to bottom.

[0090] The wind gathering section 261 can accelerate the flow of ozone in the installation groove 271, and gather the ozone in the installation groove 271 to increase the ozone concentration, so that the higher concentration of ozone can quickly flow out from the air vent 272, thereby improving the sterilization efficiency.

[0091] The utility model does not limit the fixing position of the fan 4. In one embodiment, Figure 2 As shown, the host 2 includes a step portion 23 expanding from top to bottom, the step surface of the step portion 23 is provided with an air inlet 231 and a rib 232 arranged around the air inlet 231, and the fan 4 is fixed on the inner side of the rib 232 or the inner side of the step surface.

[0092] The ribs 232 enclose an installation space for installing the fan 4, and the fan 4 is fixed in the installation space, which facilitates the positioning and fixing of the fan 4 and reduces the difficulty of installation. Both sides of the fan 4 can be fixed to the ribs 232 or the step surface, so that the force on both sides of the fan 4 is uniform, and the axis of the fan 4 remains vertical, so that the fan 4 can blow air vertically downward, avoiding the fan 4 from tilting, which causes the airflow to flow in a disordered direction.

[0093] In another embodiment, the motor assembly 21 includes a motor 211 and a reduction box 212 fixed to the bottom of the motor 211 , and the fan 4 is fixed to the side wall of the reduction box 212 .

[0094] In yet another embodiment, the fan 4 is fixed to a side wall of the housing 28 of the host 2 .

[0095] In actual operation, the fan 4 can be selectively fixed on the step surface or the rib 232 or the side wall of the main unit 2 or the side wall of the reduction box 212. When the fan 4 is fixed to the side wall of the main unit 2, there is a gap between the fan 4 and the reduction box 212, which can prevent the reduction box 212 from directly contacting the fan 4 and transmitting vibration to the fan 4, causing the fan 4 to resonate and affecting the installation stability of the fan 4.

[0096] Preferably, if Figure 2 , Figure 3 As shown, the fan 4 is located above the ultraviolet lamp 3.

[0097] The fan 4 is above the ultraviolet lamp 3, and the wind blows downward, which is consistent with the natural downward flow direction of ozone, thereby further accelerating the efficiency of ozone flowing to the air outlet 22, making the ozone flow more concentratedly in one direction, and reducing the free diffusion of ozone in the entire inner cavity of the host 2.

[0098] It should be noted that the fan 4 can be located directly above the ultraviolet lamp 3, and the axis of the fan 4 can also deviate from the ultraviolet lamp 3, which is not limited here. At the same time, the direction of the airflow blown by the fan 4 can be vertically downward or tilted downward, as long as the airflow can pass through the ultraviolet lamp 3 below.

[0099] As an implementation mode of the present utility model, Figure 2 As shown, the bottom wall of the main unit 2 is provided with an axial hole 24 corresponding to the output shaft of the motor assembly 21, the upper cover of the stirring cup 1 is provided with a cup cover 5, the bottom wall of the main unit 2 is supported above the cup cover 5, the cup cover 5 is provided with a cup cover hole 51 corresponding to the axial hole 24, the air outlet 22 is located on one side of the axial hole 24, and a connecting channel 25 is connected between the air outlet 22 and the cup cover hole 51.

[0100] The cup cover hole 51 corresponds to the shaft hole 24, and is used for the output shaft of the motor assembly 21 to be connected to the stirring member 1 in a transmission manner. The connecting channel 25 can guide the ozone at the air outlet 22, and guide the ozone in the main unit 2 to the central area of ​​the stirring cup 1, and then enter the inner cavity of the stirring cup 1 from the center of the stirring cup 1. When the motor assembly 21 drives the stirring member 11 in the stirring cup 1 to rotate, the stirring member 11 will stir the air in the stirring cup 1 to flow around under the action of centrifugal force, thereby causing the ozone entering the stirring cup 1 to diffuse around and gradually permeate the entire inner cavity. Ozone enters the stirring cup 1 from the center and diffuses evenly around, so that the distribution of ozone in the inner cavity of the stirring cup 1 is more uniform, improving the sterilization effect of each area in the stirring cup 1 and avoiding the generation of sterilization dead corners.

[0101] It should be noted that the horizontal projections of the air outlet 22 and the cup cover hole 51 may not overlap at all, or may overlap partially. As an embodiment, the communication channel 25 is located outside the main unit 2, such as Figure 6As 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 5 is a plane. After the main unit 2 and the cup cover 5 are installed in place, the mating groove and the plane on the cup cover 5 cooperate to form a connecting channel 25.

[0102] Of course, a laterally extending matching groove may be provided on the upper surface of the cup cover 5, 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 25. Alternatively, matching grooves may be provided on both the outer bottom wall of the host 2 and the upper surface of the cup cover 5, and after the two are installed, the upper and lower matching grooves are aligned to form a connecting channel 25 with a larger flow cross-sectional area, which is not limited here.

[0103] 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.

[0104] In other embodiments, a groove is provided on the upper surface of the cup cover 5 for inserting the bottom end of the main unit 2 , and the side wall and the bottom wall of the groove are combined with the outer bottom wall of the main unit 2 to form a connecting channel 25 .

[0105] As another embodiment, the communication channel 25 is located inside the host 2. Specifically, Figure 7 As shown, the inner bottom wall of the host 2 has a stop rib protruding upward. When the motor assembly 21 is installed in place, the top of the stop rib abuts against the bottom wall of the motor assembly 21, and together they form a connecting passage 25. Alternatively, a groove that is recessed downwards may be provided on the inner bottom wall of the host 2, and the connecting passage 25 is formed by the groove and the bottom wall of the motor assembly 21. Alternatively, a convex rib or a groove is provided on the bottom wall of the motor assembly 21, and the connecting passage 25 is formed by the plane of the inner bottom wall of the host 2 or the stop rib or the groove, which is not limited here.

[0106] As another embodiment of the utility model, the bottom wall of the main unit 2 is provided with an axial hole 24 corresponding to the output shaft of the motor assembly 21, the upper cover of the stirring cup 2 is provided with a cup cover 5, and the cup cover 5 is provided with a cup cover hole 51 corresponding to the axial hole 24, and a fitting gap is generated between the output shaft and the axial hole 24, and the fitting gap forms an air outlet 22.

[0107] The shaft hole 24 on the bottom wall of the main unit 2 is used as the outlet of the output shaft, and forms an air outlet 22 with the output shaft for discharging ozone in the main unit 2, so that the transmission connection between the main unit 2 and the stirring member 11, and the connection between the main unit 2 and the ozone in the stirring cup 1 share an opening, which reduces the number of openings on the bottom wall of the main unit 2, simplifies the structure of the main unit 2, and reduces the difficulty of processing. In addition, the cup cover hole 51 is generally provided with an anti-overflow structure for preventing food from overflowing from the stirring cup 1. The air outlet 22 and the shaft hole 24 are aligned with the cup cover hole 51 up and down. The anti-overflow structure can also prevent food from overflowing from the cup cover hole 51 to the air outlet 22, and there is no need to set an additional anti-overflow structure at the air outlet 22.

[0108] As another embodiment of the present utility model, the bottom wall of the main unit 2 is provided with an axial hole 24 corresponding to the output shaft of the motor assembly 21, the upper cover of the stirring cup 1 is provided with a cup cover 5, the cup cover 5 is provided with a cup cover hole 51 corresponding to the axial hole 24, the air outlet 22 is located on one side of the axial hole 24, and the cup cover 5 is provided with a second cup cover hole opposite to the air outlet 22.

[0109] The cup cover hole 51 corresponds to the shaft hole 24 in the upper and lower parts, and is used for the transmission connection between the output shaft and the stirring member 11. The second cup cover hole corresponds to the air outlet 22 in the upper and lower parts, and is used for the ozone in the main unit 2 to enter the stirring cup 1. The air outlet 22 can be flexibly selected to be set on the bottom wall of the main unit 2 according to the setting position of the ultraviolet lamp 3 and the spatial layout inside the main unit 2. The second cup cover hole is set corresponding to the air outlet 22, so that the communication path between the two is shorter. After the ozone is discharged from the air outlet 22, it can directly enter the stirring cup 1 through the second cup cover hole, reducing the kinetic energy loss of the ozone when it flows, allowing the ozone to enter the stirring cup 1 more quickly, and improving the sterilization efficiency.

[0110] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0111] 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.

[0112] 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 with good sterilization effect, 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: The interior of the main unit includes a fan and an ultraviolet lamp. The ultraviolet lamp generates ozone in the main unit. An air outlet connected to the blending cup is opened on the bottom wall of the main unit. The ultraviolet lamp is arranged closer to the air outlet than the fan. The fan blows air toward the ultraviolet lamp to allow ozone to enter the blending cup from the air outlet.

2. A meat grinder with good sterilization effect according to claim 1, characterized in that: The fan is located above the air outlet, and the central axis of the fan is located within the horizontal projection range of the air outlet.

3. A meat grinder with good sterilization effect according to claim 1, characterized in that: The host is also provided with an air collecting channel, and the ultraviolet lamp and the fan are both located in the air collecting channel; Alternatively, an air collecting channel is further provided in the host, the ultraviolet lamp is located in the air collecting channel, and the fan is located outside the air collecting channel and is arranged toward the inner cavity of the air collecting channel.

4. A meat grinder with good sterilization effect according to claim 3, characterized in that: The wind collecting channel extends from top to bottom, and the wind collecting channel includes a wind collecting section that contracts toward the air outlet.

5. A meat grinder with good sterilization effect according to claim 1, characterized in that: The host includes a shell and a bottom cover fixed at the bottom end of the shell, the air outlet is located on the bottom cover, the outer diameter of the shell expands from top to bottom to form a step portion, the step surface of the step portion is provided with an air inlet and ribs arranged around the air inlet, and the ribs extend toward the bottom cover to form an air collecting channel to accommodate the fan.

6. A meat grinder with good sterilization effect according to claim 1, characterized in that: A mounting seat is arranged inside the mainframe, and the mounting seat has a mounting groove with an opening facing upwards to accommodate the ultraviolet lamp, and a ventilation hole is arranged on the bottom wall of the mounting groove.

7. A meat grinder with good sterilization effect according to claim 6, characterized in that: The air outlet is butt-jointed with the air vent; Alternatively, the bottom wall of the main unit is provided with a retaining rib protruding upwards and surrounding the air outlet, and the top end of the retaining rib is inserted into the air vent; Alternatively, the installation groove has a wind gathering section that contracts from top to bottom.

8. A meat grinder with good sterilization effect according to claim 1, characterized in that: The main unit comprises a step portion expanding from top to bottom, the step surface of the step portion is provided with an air inlet and a rib arranged around the air inlet, and the fan is fixed on the inner side of the rib or the inner side of the step surface; Alternatively, the motor assembly includes a motor and a reduction box fixed to the bottom of the motor, and the fan is fixed to the side wall of the reduction box; Alternatively, the fan is fixed to a side wall of a housing of the host.

9. A meat grinder with good sterilization effect according to claim 1, characterized in that: The fan is located above the ultraviolet lamp.

10. A meat grinder with good sterilization effect according to claim 1, characterized in that: The bottom wall of the main machine is provided with an axial hole corresponding to the output shaft of the motor assembly, the upper cover of the stirring cup is provided with a cup cover, the bottom wall of the main machine is supported above the cup cover, the cup cover is provided with a cup cover hole corresponding to the axial hole, the air outlet is located at one side of the axial hole, and a communication channel is connected between the air outlet and the cup cover hole; Alternatively, the bottom wall of the main machine is provided with an axial hole corresponding to the output shaft of the motor assembly, the upper cover of the stirring cup is provided with a cup cover, the cup cover is provided with a cup cover hole corresponding to the axial hole, a fitting gap is generated between the output shaft and the axial hole, and the fitting gap forms the air outlet; Alternatively, the bottom wall of the main unit is provided with an axial hole corresponding to the output shaft of the motor assembly, the upper cover of the blending cup is provided with a cup cover, the cup cover is provided with a cup cover hole corresponding to the axial hole, the air outlet is located on one side of the axial hole, and the cup cover is provided with a second cup cover hole opposite to the air outlet.

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