stirring paddle and ice cream churn

Abstract

The utility model discloses a kind of stirring paddle and ice cream stirrer, it is related to ice cream processing technical field.Stirring paddle includes main shaft, U-shaped paddle body and support crossbeam, main shaft has oppositely arranged drive end and positioning end, U-shaped paddle body includes connecting portion and the first stirring portion and second stirring portion at the both ends of connecting portion, the center of connecting portion is connected with positioning end, U-shaped paddle body has first side and second side at the opposite sides of main shaft axis, first stirring portion is equipped with coating surface at first side, first scraper is equipped with in second side at second stirring portion, coating surface is used to coat ice cream on the inner wall of processing barrel, first scraper is used to scrape ice cream from the inner wall of processing barrel;The both ends of support crossbeam are connected with first stirring portion and second stirring portion respectively, and the center of support crossbeam is arranged in main shaft.The technical scheme provided by the utility model improves the stirring effect of ice cream, and then improves the processing quality of ice cream.

Description

Technical Field

[0001] This utility model relates to the field of ice cream processing technology, and in particular to a stirring paddle and an ice cream mixer. Background Technology

[0002] With the rapid growth in global demand for home baking and frozen food preparation, ice cream makers have become commonplace in home kitchens. When using an ice cream maker to process ice cream, the structural design of the mixing paddle directly affects the quality of the processed ice cream.

[0003] Existing mixing paddles typically use a scraper as the entire paddle body. The rotating scraper churns the ice cream and prevents it from sticking to the inner wall of the processing tank. However, this causes the liquid ice cream to concentrate at the bottom of the processing tank, preventing it from fully contacting the solid ice cream, resulting in uneven mixing and affecting the processing quality of the ice cream. Utility Model Content

[0004] The main purpose of this invention is to provide a stirring paddle and an ice cream mixer, which aims to improve the stirring effect of ice cream and thus improve the processing quality of ice cream.

[0005] To achieve the above objectives, the present invention proposes a stirring paddle for stirring ice cream contained in a processing bucket, comprising: The spindle has a drive end and a positioning end that are set opposite to each other; A U-shaped paddle includes a connecting portion and a first stirring portion and a second stirring portion located at both ends of the connecting portion. The center of the connecting portion is connected to the positioning end. The U-shaped paddle has a first side and a second side located on opposite sides of the main shaft axis. The first stirring portion has a coating surface on the first side, and the second stirring portion has a first scraper on the second side. The coating surface is used to coat ice cream onto the inner wall of the processing bucket, and the first scraper is used to scrape the ice cream off the inner wall of the processing bucket. A support beam is provided, with its two ends connected to the first stirring section and the second stirring section, respectively, and the center of the support beam is located at the main shaft.

[0006] In one embodiment, the connecting portion includes a first connecting segment and a second connecting segment, the first connecting segment connecting the first stirring portion and the positioning end, and the second connecting segment connecting the second stirring portion and the positioning end; The first connecting section has a second scraper protruding on the first side, and the second connecting section has a third scraper protruding on the second side.

[0007] In one embodiment, the ends of the first stirring section and the second stirring section near the drive end are inclined in a direction away from the direction in which the first scraper is facing.

[0008] In one embodiment, the supporting beam is an arc-shaped structure, and the center of the arc-shaped structure is located on the axis of the main shaft.

[0009] In one embodiment, the ends of the first stirring section and the second stirring section near the positioning end are close to each other, while the ends of the first stirring section and the second stirring section near the driving end are far apart from each other.

[0010] In one embodiment, the U-shaped propeller further includes: A baffle is provided at one end of the first stirring section and the second stirring section near the drive end, and the baffle is used to restrict the flow of the ice cream.

[0011] In one embodiment, the stirring paddle further includes: A positioning ball is located on the side of the U-shaped propeller away from the main shaft and is coaxial with the main shaft. The side of the positioning ball away from the main shaft has a groove. The positioning ball is used to be inserted into the processing barrel. The groove is used to allow the ice cream to flow.

[0012] In one embodiment, the stirring paddle further includes: The transmission structure has a mounting groove at the drive end of the main shaft, one end of the transmission structure is detachably mounted in the mounting groove, and the other end of the transmission structure is used to connect to the drive device.

[0013] In one embodiment, the transmission structure includes: Connector, used for connecting to the drive device; A drive shaft, one end of which is located on the connecting seat, and the other end of the drive shaft is provided with a limiting protrusion and a limiting plate in sequence; An elastic element is sleeved on the outer periphery of the drive shaft and located between the connecting seat and the limiting protrusion; A positioning ring is movably sleeved on the outer circumference of the drive shaft. Both ends of the positioning ring abut against the elastic element and the limiting plate, respectively. The inner circumferential surface of the positioning ring has a guide groove opposite to the limiting protrusion, and the guide groove is movable along the limiting protrusion. A positioning protrusion is provided on the outer peripheral surface of the positioning ring, and an arc-shaped groove is provided on the inner peripheral surface of the mounting groove. The elastic element drives the positioning ring away from the connecting seat so that the positioning protrusion is engaged in the arc-shaped groove.

[0014] This utility model also proposes an ice cream mixer, including a processing bucket and a mixing paddle as described in any of the above embodiments. The mixing paddle is rotatably placed inside the processing bucket, the main shaft of the mixing paddle is coaxially arranged with the processing bucket, and the U-shaped body of the mixing paddle is in contact with the processing bucket.

[0015] The technical solution of this utility model involves setting a main shaft, a U-shaped paddle body, and a supporting crossbeam in a stirring paddle. The main shaft has a driving end and a positioning end arranged opposite to each other. The U-shaped paddle body includes a connecting part and a first stirring part and a second stirring part located at both ends of the connecting part. The center of the connecting part is connected to the positioning end. The U-shaped paddle body has a first side and a second side located on opposite sides of the main shaft axis. The first stirring part has a coating surface on the first side, and the second stirring part has a first scraper on the second side. The coating surface is used to coat ice cream onto the inner wall of the processing bucket, and the first scraper is used to scrape the ice cream off the inner wall of the processing bucket. The two ends of the supporting crossbeam are respectively connected to the first stirring part and the second stirring part, and the center of the supporting crossbeam is located at the main shaft. Compared to existing mixing paddles that use a scraper as the entire paddle body, the present invention features a U-shaped paddle with different structures on both sides. When the main shaft drives the U-shaped paddle to rotate, the coating surface on the first side can coat the liquid ice cream onto the inner wall of the processing bucket, while the first scraper on the second side can peel the solid ice cream off the inner wall of the processing bucket. This facilitates the exchange of heat and cold in the ice cream, achieving thorough mixing of the ice cream. In other words, it improves the mixing effect of the ice cream and thus improves the processing quality of the ice cream. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the stirring paddle provided by this utility model; Figure 2 A schematic diagram of an embodiment of the stirring paddle and processing tank provided by this utility model; Figure 3 for Figure 2 A schematic diagram of the structure of one embodiment of the stirring impeller; Figure 4 for Figure 1 A schematic diagram of the structure of an embodiment from another perspective; Figure 5 for Figure 1 A schematic diagram of the structure of an embodiment from another perspective; Figure 6 for Figure 3 A partially exploded view of one embodiment of the transmission structure.

[0018] Explanation of icon numbers: 01. Agitator; 02. Processing tank; 100. Spindle; 110. Drive end; 120. Arc-shaped slot; 200, U-shaped paddle; 210, first stirring section; 211, coating surface; 220, second stirring section; 221, first scraper; 231, first connecting section; 2311, second scraper; 2322, inclined surface; 232, second connecting section; 2321, third scraper; 240, baffle; 300. Support beam; 400. Positioning sphere; 410. Groove; 500. Transmission structure; 510. Connecting seat; 520. Transmission shaft; 521. Limiting protrusion; 522. Limiting plate; 530. Elastic element; 540. Positioning ring; 541. Positioning protrusion; 542. Guide groove.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] With the rapid growth in global demand for home baking and frozen food preparation, ice cream makers have become commonplace in home kitchens. When using an ice cream maker to process ice cream, the structural design of the mixing paddle directly affects the quality of the processed ice cream.

[0024] Existing mixing paddles typically use a scraper as the entire paddle body. The scraper rotates to churn the ice cream and prevent it from sticking to the inner wall of the processing tank. However, this causes the liquid ice cream to concentrate at the bottom of the processing tank, resulting in insufficient contact between the liquid and solid ice cream, uneven mixing, and negatively impacting the quality of the processed ice cream.

[0025] This invention proposes a stirring paddle to improve the stirring effect of ice cream, thereby improving the processing quality of ice cream.

[0026] Please see Figures 1 to 3 In one embodiment, the stirring paddle 01 includes a main shaft 100, a U-shaped paddle body 200, and a support beam 300. The main shaft 100 has a driving end 110 and a positioning end arranged opposite to each other. The U-shaped paddle body 200 includes a connecting part and a first stirring part 210 and a second stirring part 220 located at both ends of the connecting part. The center of the connecting part is connected to the positioning end. The U-shaped paddle body 200 has a first side and a second side located on opposite sides of the axis of the main shaft 100. The first stirring part 210 is provided with a coating surface 211 on the first side, and the second stirring part 220 is provided with a first scraper 221 on the second side. The coating surface 211 is used to coat ice cream onto the inner wall of the processing bucket 02, and the first scraper 221 is used to scrape the ice cream off the inner wall of the processing bucket 02. The two ends of the support beam 300 are respectively connected to the first stirring part 210 and the second stirring part 220, and the center of the support beam 300 is located at the main shaft 100.

[0027] The stirring paddle 01 is used to churn the ice cream contained in the processing tub 02. The processing tub 02 has a receiving cavity to hold the ice cream, and the wall of the receiving cavity is the inner wall of the processing tub 02. When the stirring paddle 01 is placed in the receiving cavity, the stirring paddle 01 is coaxial with the receiving cavity, and the outer circumferential surface of the stirring paddle 01 is in contact with the cavity wall to ensure that the stirring paddle 01 thoroughly churns the ice cream in the processing tub 02.

[0028] The main shaft 100 is used to provide support and positioning for the agitator 01. The two ends of the main shaft 100 in the axial direction are the drive end 110 and the positioning end. The positioning end extends into the receiving cavity and abuts against the bottom surface of the receiving cavity to achieve positioning. The drive end 110 is used to drive the connection with the drive device to realize the rotation of the main shaft 100 around its own axis.

[0029] The U-shaped paddle 200 is the main structure for the stirring paddle 01 to perform stirring operations. The two ends of the connecting portion of the U-shaped paddle 200 are respectively connected to the first stirring part 210 and the second stirring part 220. The center of the connecting portion is connected to the positioning end of the main shaft 100 and is coaxially arranged with the main shaft 100, so that the main shaft 100 rotates while simultaneously driving the U-shaped paddle 200 to rotate around the axis of the main shaft 100. The connecting portion can be curved or horizontal, and it is fitted against the bottom surface of the receiving cavity; no limitation is made here. In one embodiment, the first stirring part 210 includes an integrally formed first outer plate and a first inner plate. The first inner plate is located on the first side and is closer to the main shaft 100 than the first outer plate, while the first outer plate is located on the second side. The first outer plate is directly and tightly attached to the cavity wall of the receiving cavity, while the first inner plate does not directly contact the cavity wall. The junction between the first outer plate and the first inner plate is a smooth arc surface, allowing the first inner plate and the arc surface to fit together to form a coating surface 211. The first outer plate further coats the ice cream on the cavity wall with the coating surface 211 and presses it firmly to prevent the ice cream from easily slipping off. The second stirring part 220 includes an integrally formed second outer plate and a second inner plate. The second inner plate is located on the first side and is closer to the main shaft 100 than the second outer plate. The second outer plate is located on the second side and is in close contact with the cavity wall of the cavity, while the second inner plate does not directly contact the cavity wall. The thickness of the second outer plate gradually decreases away from the second inner plate, forming a first scraper 221. The second inner plate increases the structural strength of the second stirring part 220, thereby ensuring that the first scraper 221 can scrape the ice cream off the cavity wall. In one embodiment, a first included angle is formed between the first outer plate and the first inner plate, and a second included angle is formed between the second outer plate and the second inner plate. Both the first and second included angles are greater than 90 degrees and less than 180 degrees, ensuring both the functionality of the first stirring section 210 and the second stirring section 220 and their structural strength. The first scraper 221 and the coating surface 211 face opposite directions, so that when the U-shaped paddle 200 rotates around the main shaft 100 in a preset direction, the coating surface 211 coats the ice cream onto the cavity wall of the receiving cavity, and then the first scraper 221 scrapes the ice cream off the cavity wall, repeating this cycle to achieve heat exchange. The preset direction is the direction in which the rotation of the U-shaped paddle 200 allows the coating surface 211 and the first scraper 221 to function normally.

[0030] The support beam 300 supports the U-shaped impeller 200 and further ensures the overall stability of the agitator 01. Specifically, the main shaft 100 passes through the center of the support beam 300 and is fixedly connected to it. The support beam 300 is located near the drive end 110 of the main shaft 100, and its two ends are respectively connected to the first agitator 210 and the second agitator 220. The support beam 300 cooperates with the connecting part to connect the two ends of the first agitator 210 and the second agitator 220, thereby improving structural stability.

[0031] The technical solution of this utility model involves setting a main shaft 100, a U-shaped paddle 200, and a supporting beam 300 on a stirring paddle 01. The main shaft 100 has a driving end 110 and a positioning end arranged opposite to each other. The U-shaped paddle 200 includes a connecting part and a first stirring part 210 and a second stirring part 220 located at both ends of the connecting part. The center of the connecting part is connected to the positioning end. The U-shaped paddle 200 has a first side and a second side located on opposite sides of the axis of the main shaft 100. The first stirring part 210 has a coating surface 211 on the first side, and the second stirring part 220 has a first scraper 221 on the second side. The coating surface 211 is used to coat ice cream onto the inner wall of the processing bucket 02, and the first scraper 221 is used to scrape the ice cream off the inner wall of the processing bucket 02. The two ends of the supporting beam 300 are respectively connected to the first stirring part 210 and the second stirring part 220, and the center of the supporting beam 300 is located on the main shaft 100. Compared to the existing technology where the entire paddle body is set as a scraper, the technical solution of this utility model is set with a U-shaped paddle 200 with different structures on both sides. When the main shaft 100 drives the U-shaped paddle 200 to rotate, the coating surface 211 on the first side can coat the liquid ice cream onto the inner wall of the processing tank 02, and the first scraper 221 on the second side can peel the solid ice cream off the inner wall of the processing tank 02. This is conducive to the heat exchange of the ice cream and realizes the full mixing of the ice cream. That is, it improves the mixing effect of the ice cream and thus improves the processing quality of the ice cream.

[0032] Please see Figures 1 to 3 In one embodiment, the connecting part includes a first connecting section 231 and a second connecting section 232. The first connecting section 231 connects the first stirring part 210 and the positioning end, and the second connecting section 232 connects the second stirring part 220 and the positioning end. The first connecting section 231 is provided with a second scraper 2311 protruding on the first side, and the second connecting section 232 is provided with a third scraper 2321 protruding on the second side.

[0033] The first connecting section 231 is located below the first stirring section 210, and the second connecting section 232 is located below the second stirring section 220, so that the third scraper 2321 and the second scraper 2311 are both used to fit against the bottom surface of the receiving cavity to scoop up the ice cream.

[0034] In one embodiment, the first connecting segment 231 includes an integrally formed third outer plate and a third inner plate. The third outer plate is located on a first side, the third inner plate is located on a second side, and the third outer plate is located above the third outer plate, such that the third outer plate and the third inner plate together form a temporary storage position. The third outer plate is used to directly adhere to the bottom surface of the receiving cavity, and the second scraper 2311 is located on the side of the third outer plate away from the third inner plate. The third outer plate is connected to the first outer plate, and the third inner plate is connected to the second inner plate, such that a slope 2322 is formed at the junction of the third inner plate and the second inner plate. The end of the slope 2322 near the positioning end is inclined towards the second side. After the second scraper 2311 scoops up the ice cream, the ice cream will accumulate in the temporary storage position. When there is too much accumulation, it will flow upward along the slope 2322 to the coating surface 211, so that the coating surface 211 coats it onto the cavity wall of the receiving cavity.

[0035] In one embodiment, the second connecting segment 232 includes an integrally formed fourth outer plate and a fourth inner plate. The fourth outer plate is located on a second side and a first side, and the fourth inner plate is located above the fourth outer plate. The fourth outer plate is used to directly adhere to the bottom surface of the receiving cavity. The thickness of the fourth outer plate gradually decreases away from the fourth inner plate, so that the fourth outer plate forms a third scraper 2321. The fourth outer plate is connected to the second outer plate, and the fourth inner plate is connected to the second inner plate to ensure the continuity of the first scraper 221 and the third scraper 2321.

[0036] In one embodiment, a third included angle is formed between the third outer plate and the third inner plate, and a fourth included angle is formed between the fourth outer plate and the fourth inner plate. Both the fourth included angle and the fourth included angle are greater than 90 degrees and less than 180 degrees, so as to guide the flow of ice cream in the connecting part while ensuring its structural strength and preventing ice cream from accumulating in the connecting part. In one embodiment, the ends of the first connecting segment 231 and the second connecting segment 232 connected to the positioning end are connected to each other, that is, the inner and outer plates of the first connecting segment 231 and the second connecting segment 232 are correspondingly connected to each other to ensure the structural stability of the connecting part. Furthermore, the first connecting segment 231 and the second connecting segment 232 are integrally formed, and the connecting part is also integrally formed with the first stirring part 210 and the second stirring part 220, further ensuring the structural stability of the U-shaped paddle 200.

[0037] The technical solution of this utility model embodiment, by setting a second scraper 2311 and a third scraper 2321, improves the thoroughness of scraping by the third scraper 2321 scooping up the ice cream from the bottom surface of the cavity while the first scraper 221 scrapes away the ice cream; the second scraper 2311 can scoop up the ice cream from the bottom surface of the cavity and provide it to the coating surface 211 through the inclined surface 2322 while coating the coating surface 211 with ice cream, thus improving the thoroughness of coating and thereby improving the thoroughness of stirring.

[0038] Please see Figure 5 In one embodiment, the ends of the first stirring section 210 and the second stirring section 220 near the drive end 110 are inclined in a direction away from the direction in which the first scraper 221 is facing.

[0039] Specifically, the U-shaped paddle 200 is tilted towards the direction of the first side, so that the first scraper 221 is closer to the axis of the main shaft 100 relative to the coating surface 211, and is tilted at a certain angle relative to the main shaft 100. When the U-shaped paddle 200 is placed in the receiving cavity, it can divide the receiving cavity into two spaces of different sizes. The space near the first side is smaller than the space near the second side, so that more air can be drawn into the space near the second side during the stirring process of the stirring paddle 01, so that when the first scraper scrapes the ice cream, it can fully draw air into the receiving cavity. The tilt angle is greater than or equal to 3 degrees and less than or equal to 8 degrees to avoid the tilt angle being too large, which would affect the rotation of the U-shaped paddle 200; similarly, it avoids the tilt angle being too small, which would prevent air from being drawn in.

[0040] The technical solution of this utility model embodiment, by arranging the first stirring part 210 and the second stirring part 220 in the same direction, facilitates the full entrainment of air into the receiving cavity when scraping the ice cream, thereby improving the foaming rate of the ice cream and thus improving the processing quality.

[0041] Please see Figure 1 and Figure 3 In one embodiment, the supporting beam 300 is an arc-shaped structure, and the center of the arc-shaped structure is located on the axis of the main shaft 100.

[0042] The support beam 300 is used to improve the overall structural strength of the stirring paddle 01 while also increasing the tightness of contact between the stirring paddle 01 and the cavity wall, so as to scrape the ice cream attached to the ice cream bucket to the maximum extent and thoroughly stir it. The center of the arc-shaped structure is fixed to the main shaft 100, and the two ends of the arc-shaped structure are fixedly connected to the first outer plate and the first inner plate, as well as the second outer plate and the second inner plate, respectively. In one embodiment, the support beam 300 is configured to be made of food-grade stainless steel to ensure that the support beam 300 has good strength and a certain elastic deformation capacity, while ensuring food safety. Of course, in other embodiments, the support beam 300 can also be made of food-grade aluminum alloy or reinforced food-grade polyetheretherketone, etc., and there is no limitation here. When the connecting part is curved, the chord length of the supporting beam 300 is greater than or equal to the chord length of the connecting part; when the connecting part is curved, the chord length of the supporting beam 300 is greater than or equal to the length of the connecting part, so that the supporting beam 300 can push the first stirring part 210 and the second stirring part 220 into close contact with the cavity wall of the receiving cavity.

[0043] The technical solution of this utility model embodiment, by setting the support beam 300 as an arc-shaped structure, can increase the elastic deformation capability of the stirring paddle 01, and can make the first stirring part 210 and the second stirring part 220 fit tightly against the cavity wall of the receiving cavity, ensuring that the ice cream is fully stirred; in addition, the center of the arc-shaped structure is located on the axis of the main shaft 100, which can ensure that the U-shaped paddle 200 always rotates around the axis of the main shaft 100, reducing the radial load and vibration of the bearing, thereby improving the service life of the stirring paddle 01.

[0044] Please see Figure 1 and Figure 3 In one embodiment, the ends of the first stirring section 210 and the second stirring section 220 near the positioning end are close to each other, while the ends of the first stirring section 210 and the second stirring section 220 near the driving end 110 are far apart from each other.

[0045] In one embodiment, the ends of the first inner plate and the second inner plate near the drive end 110, as well as the ends of the first outer plate and the second outer plate near the drive end 110, are positioned far apart from each other, making the U-shaped paddle 200 trapezoidal in shape, wider at the top and narrower at the bottom. This facilitates guiding the ice cream along the first stirring section 210 and the second stirring section 220 towards the positioning end. In this case, the chord length of the supporting beam 300 is greater than the chord length or length of the connecting section. The elastic support of the supporting beam 300 allows the first stirring section 210 and the second stirring section 220 to tend to move away from each other at the ends near the drive end 110. The U-shaped paddle 200 is made of food-grade stainless steel to ensure good strength and a certain degree of elastic deformation, while also ensuring food safety. Of course, in other embodiments, the U-shaped paddle 200 can also be made of food-grade aluminum alloy or food-grade plastic, etc., and there are no limitations on this.

[0046] When the U-shaped paddle 200 enters the receiving cavity, the cavity wall pushes against the first stirring section 210 and the second stirring section 220, causing the U-shaped paddle 200 to undergo slight deformation and compress the supporting beam 300. The supporting beam 300 then pushes against the first stirring section 210 and the second stirring section 220 in the opposite direction, ensuring that the first stirring section 210 and the second stirring section 220 are in close contact with the cavity wall. During the stirring process, the ice cream flows along the first stirring section 210 and the second stirring section 220 towards the positioning end to prevent the ice cream from accumulating at the cavity opening.

[0047] The technical solution of this utility model embodiment, by setting the ends of the first stirring part 210 and the second stirring part 220 close to the drive end 110 away from each other, can, on the one hand, prevent ice cream from accumulating at the cavity opening of the receiving cavity and improve the reliability of stirring; on the other hand, it can further improve the tightness of contact between the first stirring part 210 and the second stirring part 220 and the cavity wall of the receiving cavity, and further improve the thoroughness of stirring.

[0048] Please see Figure 3 In one embodiment, the U-shaped paddle 200 further includes a baffle 240 disposed at one end of the first stirring section 210 and the second stirring section 220 near the drive end 110. The baffle 240 is used to restrict the flow of ice cream.

[0049] In one embodiment, the plane containing the baffle 240 is perpendicular to the axis of the main shaft 100. Two baffles 240 are provided, each connected to and located above the first stirring section 210 and the second stirring section 220. The area of ​​each baffle 240 is larger than the cross-sectional area of ​​the first inner plate and the first outer plate, and also larger than the cross-sectional area of ​​the second inner plate and the second outer plate. The side of the baffle 240 that contacts the cavity wall is on the same plane as the side of the first stirring section 210 or the second stirring section 220 that contacts the cavity wall. The side of the baffle 240 that contacts the cavity wall is curved to avoid a hard collision with the cavity wall during the rotation of the stirring paddle 01; or, the side of the baffle 240 that contacts the cavity wall is fitted to the cavity wall.

[0050] The technical solution of this utility model embodiment, by setting baffle 240, can restrict the flow of ice cream, so as to further prevent ice cream from overflowing from the cavity opening during the stirring process, thereby improving the reliability of the stirring paddle 01.

[0051] Please see Figure 4 In one embodiment, the stirring paddle 01 further includes a positioning ball 400, which is disposed on the side of the U-shaped paddle 200 away from the main shaft 100 and coaxially disposed with the main shaft 100. The positioning ball 400 is provided with a groove 410 on the side away from the main shaft 100. The positioning ball 400 is used to be inserted into the processing bucket 02, and the groove 410 is used to allow ice cream to flow.

[0052] Specifically, the bottom surface of the receiving cavity is provided with a positioning groove connected to the receiving cavity. The positioning groove is coaxially arranged with the receiving groove. One end of the positioning ball 400 is located at the bottom of the connecting part and is coaxially arranged with the main shaft 100. The other end of the positioning ball 400 is used to rotate in the positioning groove to ensure that the main shaft 100 can always rotate around its own axis without deviation during the stirring process. The groove 410 extends from one side of the positioning ball 400 to the other side. Since ice cream flows from the receiving cavity to the positioning groove and accumulates in the positioning groove during the stirring process, when too much ice cream accumulates, it can flow back to the receiving cavity along the groove 410.

[0053] The technical solution of this utility model embodiment, by setting a positioning ball 400, which cooperates with the positioning groove, can position the stirring paddle 01 and ensure the reliability of the stirring paddle 01; by setting a groove 410 on the positioning ball 400, the ice cream can be further fully stirred, improving the fullness of stirring.

[0054] Please see Figure 3 and Figure 6 In one embodiment, the stirring paddle 01 further includes a transmission structure 500. The drive end 110 of the main shaft 100 is provided with a mounting groove. One end of the transmission structure 500 is detachably disposed in the mounting groove, and the other end of the transmission structure 500 is used to connect to the driving device.

[0055] The transmission structure 500 is used to connect the main shaft 100 and the drive device so that the drive device can drive the main shaft 100 and the U-shaped propeller 200 to rotate.

[0056] In one embodiment, the transmission structure 500 includes a connecting seat 510, a transmission shaft 520, an elastic element 530, a positioning ring 540, and a positioning protrusion 541. The connecting seat 510 is used to connect with a driving device. One end of the transmission shaft 520 is disposed on the connecting seat 510, and the other end of the transmission shaft 520 is sequentially provided with a limiting protrusion 521 and a limiting plate 522. The elastic element 530 is sleeved on the outer periphery of the transmission shaft 520 and located between the connecting seat 510 and the limiting protrusion 521. The positioning ring 540 is movably sleeved on the transmission shaft 500. On the outer periphery of shaft 520, the two ends of positioning ring 540 abut against elastic member 530 and limiting plate 522 respectively. The inner peripheral surface of positioning ring 540 is provided with guide groove 542 opposite to limiting protrusion 521. Guide groove 542 can move along limiting protrusion 521. Positioning protrusion 541 protrudes from the outer peripheral surface of positioning ring 540. The inner peripheral surface of mounting groove is provided with arc-shaped groove 120. Elastic member 530 drives positioning ring 540 away from connecting seat 510 so that positioning protrusion 541 is engaged in arc-shaped groove 120.

[0057] Specifically, one side of the connecting seat 510 is connected to the driving device, and the other side of the connecting seat 510 is provided with a drive shaft 520. The driving device drives the drive shaft 520 to rotate through the connecting seat 510. An elastic element 530 is sleeved on the drive shaft 520. One end of the elastic element 530 is connected to or abuts against the connecting seat 510, and the other end of the elastic element 530 abuts against the positioning ring 540, so that the positioning ring 540 tends to move away from the connecting seat 510. The elastic element 530 can be a spring or a silicone elastic sleeve, etc., and there is no limitation here. The limiting plate 522 is fixed to the end of the drive shaft 520 away from the connecting seat 510, and is used to abut against the end of the positioning ring 540 away from the connecting seat 510 to prevent the positioning ring 540 from dislodging from the connecting shaft. A limiting protrusion 521 is positioned near the limiting plate 522. A positioning ring 540 is sleeved on the drive shaft 520 and slidably connected to the limiting protrusion 521 via a guide groove 542. The limiting protrusion 521 prevents the positioning ring 540 from rotating relative to the drive shaft 520. The positioning protrusion 541 protrudes in a direction away from the axis of the drive shaft 520, and the opening of the arc-shaped groove 120 faces upward, allowing the positioning protrusion 541 to enter or leave the arc-shaped groove 120. The inner circumferential surface of the mounting groove has a protruding abutment ring platform. The abutment ring platform has a notch on the side facing the opening of the mounting groove, and the notch wall is arc-shaped, forming an arc-shaped groove 120 at the notch. In one embodiment, the outer circumferential surface of the positioning ring 540 has multiple positioning protrusions 541 spaced apart, and the inner circumferential surface of the mounting groove has multiple corresponding arc-shaped grooves 120, allowing the positioning protrusions 541 to be inserted into the arc-shaped grooves 120 one by one. The number of positioning protrusions 541 and arc-shaped slots 120 can be flexibly set according to actual needs, and there is no limit here.

[0058] The connecting seat 510 is connected to the drive device, which can position the connecting seat 510 to restrict the end of the transmission shaft with the positioning ring 540 in the positioning groove. Under normal circumstances, the elastic element 530 drives the positioning ring 540 away from the connecting seat 510, and the limiting protrusion 521 is located in the guide groove 542 so that the positioning protrusion 541 can be engaged with the arc-shaped groove 120 and abut against the groove wall of the arc-shaped groove 120, ensuring that the drive device can drive the transmission structure 500 to rotate, thereby driving the main shaft 100 and the U-shaped propeller 200 to rotate in the receiving cavity. In case of an accident, such as when the main shaft 100 or the U-shaped propeller 200 is stuck in the receiving cavity or frozen, the main shaft 100 and the U-shaped propeller 200 cannot rotate synchronously with the drive shaft 520. In this case, the positioning ring 540 can move along the limiting protrusion 521 toward the connecting seat 510, so that the positioning protrusion 541 can move along the groove wall of the arc-shaped groove 120 to gradually disengage from the arc-shaped groove 120, thus avoiding damage to the main shaft 100 or the U-shaped propeller 200.

[0059] The technical solution of this utility model embodiment, by setting a transmission structure 500, can normally transmit power to realize the rotation of the main shaft 100 and the U-shaped propeller 200 under normal circumstances; and in case of accident, the positioning protrusion 541 in the transmission structure 500 can disengage from the arc-shaped slot 120 to prevent transmission to the main shaft 100, thereby avoiding damage to the main shaft 100 or the U-shaped propeller 200 and improving the reliability of use.

[0060] This utility model also proposes an ice cream mixer, including a processing tank 02 and a mixing paddle 01 as described in the above embodiments. The mixing paddle 01 is rotatably placed inside the processing tank 02, and the main shaft 100 of the mixing paddle 01 is coaxially arranged with the processing tank 02. The U-shaped paddle body 200 of the mixing paddle 01 is in close contact with the processing tank 02. The specific structure of the mixing paddle 01 is as described in the above embodiments. Since this ice cream mixer adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0061] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A stirring paddle for stirring ice cream contained in a processing bucket, characterized in that, include: The spindle has a drive end and a positioning end that are set opposite to each other; A U-shaped paddle includes a connecting portion and a first stirring portion and a second stirring portion located at both ends of the connecting portion. The center of the connecting portion is connected to the positioning end. The U-shaped paddle has a first side and a second side located on opposite sides of the main shaft axis. The first stirring portion has a coating surface on the first side, and the second stirring portion has a first scraper on the second side. The coating surface is used to coat ice cream onto the inner wall of the processing bucket, and the first scraper is used to scrape the ice cream off the inner wall of the processing bucket. A support beam is provided, with its two ends connected to the first stirring section and the second stirring section, respectively, and the center of the support beam is located at the main shaft.

2. The stirring paddle as described in claim 1, characterized in that, The connecting part includes a first connecting section and a second connecting section, the first connecting section connecting the first stirring part and the positioning end, and the second connecting section connecting the second stirring part and the positioning end; The first connecting section has a second scraper protruding on the first side, and the second connecting section has a third scraper protruding on the second side.

3. The stirring paddle as described in claim 1, characterized in that, The ends of the first stirring section and the second stirring section near the drive end are inclined in a direction away from the direction in which the first scraper is facing.

4. The stirring paddle as described in claim 1, characterized in that, The supporting beam has an arc-shaped structure, and the center of the arc-shaped structure is located on the axis of the main shaft.

5. The stirring paddle as described in claim 4, characterized in that, The ends of the first stirring section and the second stirring section near the positioning end are close to each other, while the ends of the first stirring section and the second stirring section near the driving end are far apart from each other.

6. The stirring paddle as described in claim 1, characterized in that, The U-shaped propeller also includes: A baffle is provided at one end of the first stirring section and the second stirring section near the drive end, and the baffle is used to restrict the flow of the ice cream.

7. The stirring paddle as described in claim 1, characterized in that, The stirring paddle also includes: A positioning ball is located on the side of the U-shaped propeller away from the main shaft and is coaxial with the main shaft. The side of the positioning ball away from the main shaft has a groove. The positioning ball is used to be inserted into the processing barrel. The groove is used to allow the ice cream to flow.

8. The stirring paddle as described in claim 1, characterized in that, The stirring paddle also includes: The transmission structure has a mounting groove at the drive end of the main shaft, one end of the transmission structure is detachably mounted in the mounting groove, and the other end of the transmission structure is used to connect to the drive device.

9. The stirring paddle as described in claim 8, characterized in that, The transmission structure includes: Connector, used for connecting to the drive device; A drive shaft, one end of which is located on the connecting seat, and the other end of the drive shaft is provided with a limiting protrusion and a limiting plate in sequence; An elastic element is sleeved on the outer periphery of the drive shaft and located between the connecting seat and the limiting protrusion; A positioning ring is movably sleeved on the outer circumference of the drive shaft. Both ends of the positioning ring abut against the elastic element and the limiting plate, respectively. The inner circumferential surface of the positioning ring has a guide groove opposite to the limiting protrusion, and the guide groove is movable along the limiting protrusion. A positioning protrusion is provided on the outer peripheral surface of the positioning ring, and an arc-shaped groove is provided on the inner peripheral surface of the mounting groove. The elastic element drives the positioning ring away from the connecting seat so that the positioning protrusion is engaged in the arc-shaped groove.

10. An ice cream maker, characterized in that, The device includes a processing barrel and a stirring paddle as described in any one of claims 1 to 9, wherein the stirring paddle is rotatably disposed inside the processing barrel, the main shaft of the stirring paddle is coaxially arranged with the processing barrel, and the U-shaped body of the stirring paddle is in contact with the processing barrel.

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