Output shaft for a household appliance

Abstract

The utility model discloses a kind of output shafts for household appliances, it is related to output shaft technical field, including shaft body, the plug-in end for butt joint accessory and the fixed end for connecting chef machine driving mechanism are set on shaft body;Shaft body is also provided with through slot, first elastic element and two clamping posts are arranged in the through slot, two clamping posts are arranged in the both sides of through slot inside, first elastic element is arranged between two clamping posts, two clamping posts respectively extend and protrude outside through slot;Among them, the first slope of the lower end of two clamping posts is provided with, by being provided with first elastic element in the through slot opened on shaft body, and two clamping posts telescopic in through slot are set, when installing accessory, clamping post is retracted through slot by the first slope of lower end face, and then is pushed out in card slot interfit by second elastic element, and then accessory is fixedly installed, to reduce the operation difficulty when accessory is installed, simplify installation process, so that the installation of accessory is more rapid.

Description

Technical Field

[0001] This utility model relates to the field of output shaft technology, and in particular to an output shaft for household appliances. Background Technology

[0002] Among household appliances, a stand mixer is a multi-functional kitchen appliance mainly used for making Chinese and Western pastries, combining kneading, egg beating, and mixing functions. At its core is a powerful motor. When powered on, the motor drives gears to rotate. Different combinations of gears provide different speeds and forces, which in turn drive other accessories (such as mixing attachments) to deliver mixing force, achieving the desired effect.

[0003] According to the utility model patent "Chef Machine" with announcement number CN222516709U, "both sides of the mixing output head 22 are provided with locking parts 221. Both sides of each mixing accessory 3 are provided with a slot 31. The slot 31 includes a first slot 311 and a second slot 312 that are connected. The first slot 311 extends horizontally; the second slot 312 extends vertically. When replacing the mixing accessory 3, the consumer first inserts the locking part 221 into the first slot 311 horizontally, and pulls down the mixing accessory 3 so that the locking part 221 is locked with the second slot 312, thereby realizing the installation of the mixing accessory 3. The disassembly process is the reverse of the above. Therefore, it is convenient to replace the mixing accessory 3. In addition, because the second slot 312 extends vertically, it prevents the mixing accessory 3 from falling off during rotation (see end of specification

[0056] -

[00567] for details)."

[0004] As can be seen from the aforementioned patents, the current assembly and disassembly of kitchen appliance parts mainly involves creating a first slot at the port of the part to provide space for the output shaft's retaining post, and a second slot extending laterally to prevent the retaining post from falling off. However, the existing snap-fit ​​structure still has significant drawbacks: the smoothness of the part installation process depends on the precise alignment of the output shaft retaining post with the first slot of the part. Due to the obstruction of the kitchen appliance's body structure, the user's view is easily blocked by the body or other components when installing parts, making it difficult to visually observe the relative position of the retaining post and the first slot, thus increasing the difficulty of alignment. Especially for novice users or users with poor eyesight, it is necessary to repeatedly adjust the angle and position of the part to achieve alignment between the retaining post and the first slot, making the originally convenient assembly and disassembly process cumbersome and time-consuming, seriously affecting the user experience.

[0005] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an output shaft for household appliances, comprising a shaft body, wherein the shaft body is provided with a plug-in end for connecting accessories and a fixed end for connecting a food processor drive mechanism; The shaft is also provided with a through groove, and a first elastic element and two locking posts are provided inside the through groove. The two locking posts are provided on both sides inside the through groove, the first elastic element is provided between the two locking posts, and the two locking posts extend outwards and protrude out of the through groove. The lower ends of the two locking pins are provided with a first inclined surface.

[0008] As a further embodiment of this utility model: baffles are provided on the opposite sides of the two locking posts, and the two baffles are pressed against the two ends of the first elastic element. The shape of the baffles is consistent with the cross-sectional shape of the through groove, and the length and width of the cross-section of the locking post are smaller than the length and width of the cross-section of the through groove. The shaft is fitted with a sleeve on the side near the insertion end. The upper end of the sleeve has two slots. The locking pin is fitted into the slots, and the baffle abuts against the inner wall of the sleeve.

[0009] As a further embodiment of this utility model: both the through groove and the baffle are square structures.

[0010] As a further embodiment of this utility model: the shape of the card post is square; Among them, a second inclined surface is provided on one side of the two locking pins in the counterclockwise rotation direction.

[0011] As a further embodiment of this utility model: a movable piece is movably provided on the shaft body above two locking posts, a second elastic element is provided at the upper end of the movable piece and sleeved outside the shaft body, a fixing piece is provided at the upper end of the second elastic element, a retaining spring is provided at the upper end of the fixing piece, and a hoop groove corresponding to the retaining spring is provided on the shaft body.

[0012] As a further embodiment of this utility model, a connecting screw hole is provided on the fixed end of the shaft.

[0013] Compared with the prior art, the beneficial effects of this technical solution are as follows: During the process of installing the accessories of the food processor into the shaft connector, the slot of the accessory is aligned with the shaft and pushed in. During the pushing process, the edge of the slot interacts with the first inclined surface at the lower end of the two locking posts. The first inclined surface converts the vertical force into the lateral movement of the locking posts, so that both locking posts retract into the through groove of the shaft. At the same time, the first elastic element inside is squeezed. Then, as the accessory slot is pushed up, after the locking posts are aligned with the slots inside the slot, the first elastic element pushes the two locking posts outward, so that one of the locking posts is locked with the slot, while the other locking post presses against the inner wall of the accessory slot. This reduces the difficulty of accessory installation, simplifies the installation process, and makes accessory installation faster. When disassembling, the accessory can be disassembled by rotating it so that the slot on the accessory for the locking posts to pass through is aligned with the locking posts.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] 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 these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of the first elastic element and the locking post of this utility model; Figure 5 This is a schematic diagram of the structure of the shaft of this utility model; Figure 6 This is a schematic diagram of the connection between the shaft and the fittings of this utility model; The corresponding labels in the attached diagram are explained as follows: 1. Shaft body; 11. Insertion end; 12. Fixed end; 13. Through groove; 14. Hoop groove; 15. Connecting screw hole; 2. First elastic element; 3. Locking post; 31. First inclined surface; 32. Baffle plate; 33. Second inclined surface; 4. Sleeve; 41. Groove; 5. Movable piece; 6. Second elastic element; 7. Fixed piece; 8. Snap ring. Detailed Implementation

[0017] 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 protection scope of the present utility model.

[0018] Please see Figure 1-6 An output shaft for a household appliance includes a shaft body 1, wherein the shaft body 1 is provided with a plug-in end 11 for docking accessories and a fixed end 12 for connecting a food processor drive mechanism. The shaft 1 is also provided with a through groove 13. The through groove 13 is provided with a first elastic element 2 and two locking posts 3. The two locking posts 3 are provided on both sides inside the through groove 13, the first elastic element 2 is provided between the two locking posts 3, and the two locking posts 3 extend outward and protrude out of the through groove 13 respectively. The two locking posts 3 are provided with a first inclined surface 31 at their lower ends.

[0019] In the technical solution of this utility model, during the process of installing the accessory (mixer) of the food processor into the insertion end 11 of the shaft 1, the slot of the accessory is aligned with the shaft 1 and pushed in. During the pushing process, the edge of the slot interacts with the first inclined surface 31 at the lower end of the two locking posts 3. The first inclined surface 31 is used to convert the vertical force into the lateral movement of the locking posts 3, so that both locking posts 3 retract into the through groove 13 of the shaft 1, while squeezing the first elastic element 2 inside. Then, as the accessory slot is pushed up, after the locking posts 3 are aligned with the slot inside the slot, the first elastic element 2 pushes the two locking posts 3 outward, so that one of the locking posts 3 is locked in place with the slot, while the other locking post 3 presses against the inner wall of the accessory slot. This reduces the difficulty of accessory installation, simplifies the installation process, and makes accessory installation faster. When disassembling, the accessory is rotated so that the slot on the accessory for the locking post 3 to pass through is aligned with the locking post 3, and the accessory can be disassembled.

[0020] Furthermore, each of the two locking posts 3 is provided with a baffle 32 on its opposite side. The two ends of the first elastic element 2 press against the two baffles 32. The shape of the baffles 32 is consistent with the cross-sectional shape of the through groove 13. By providing baffles 32 that are consistent with the cross-sectional shape of the through groove 13, and by making the baffles 32 and the locking posts 3 an integral structure, when the locking posts 3 extend or retract, the baffles 32 can maintain a straight movement trajectory inside the through groove 13, so as to avoid the locking posts 3 from becoming skewed when they interact with the edge of the accessory slot, which would cause the locking posts 3 to fail to retract into the through groove 13. The length and width of the cross-section of the locking post 3 are smaller than the length and width of the cross-section of the through groove 13. A sleeve 4 is fitted on the side of the shaft 1 near the insertion end 11. Two slots 41 are opened at the upper end of the sleeve 4. The locking post 3 is fitted into the slots 41, and the baffle 32 abuts against the inner wall of the sleeve 4. The length and width of the cross-section of the locking post 3 are smaller than the length and width of the cross-section of the through groove 13, that is, smaller than the baffle 32. At the same time, the sleeve 4 is set on the outside of the shaft 1. After the sleeve 4 is wrapped around one end of the shaft 1, the slot on the upper part is fitted with the locking post 3. This ensures that the locking post 3 can only extend and retract, and the baffle 32 inside the through groove 13 can be blocked by the inner wall of the sleeve 4, thereby preventing the baffle 32 from leaving the through groove 13 and limiting the maximum extension distance of the locking post 3.

[0021] Preferably, the lower end of the sleeve 4 is fixed to the shaft 1 by bolts; such as Figure 3 As shown, the upper end of the housing 4 has an opening corresponding to the shaft 1. The housing 4 can be quickly assembled using the opening, and then the housing 4 is fixed to the shaft 1 using bolts. Specifically, bolt holes (not shown in the figure) are opened on the surface of the insertion end 11 of the shaft 1 and the bottom surface of the housing 4. The housing 4 and the shaft 1 are fixed by screwing the bolts into the bolt holes.

[0022] In another embodiment, such as Figure 6 As shown, the inner wall of the slot of the accessory has two slots, and the shape of the locking post 3 is square; Among them, a second inclined surface 33 is provided on one side of the two locking posts 3 in the counterclockwise rotation direction.

[0023] During the installation of the accessory, the edge of the slot interacts with the first inclined surface 31 of the two locking posts 3, causing the two locking posts 3 to retract into the through groove 13. Subsequently, they are pushed out by the first elastic element 2 and fitted into the two locking slots, thereby fixing the accessory to the shaft 1. When the drive mechanism of the food processor is activated, the shaft 1 can rotate the accessory clockwise. When it is necessary to remove the accessory, the accessory can be rotated counterclockwise. During the rotation, the edge of the locking slot interacts with the second inclined surface 33 of the locking post 3 in the counterclockwise direction, causing the locking post 3 to retract into the through groove 13, thereby allowing the accessory to be disassembled.

[0024] Furthermore, both the through groove 13 and the baffle 32 are square structures.

[0025] The square-structured through groove 13 (section) and baffle 32 prevent the baffle 32 and the locking post 3 from rotating, thereby ensuring that the orientation of the first inclined surface 31 and the second inclined surface 33 does not change.

[0026] Based on the above embodiments, it is further proposed that the shaft 1 is movably provided with a movable piece 5 located above two retaining posts 3. The upper end of the movable piece 5 is provided with a second elastic element 6 sleeved outside the shaft 1. The upper end of the second elastic element 6 is provided with a fixing piece 7. The upper end of the fixing piece 7 is provided with a retaining spring 8. The shaft 1 is provided with a hoop groove 14 corresponding to the retaining spring 8.

[0027] During the installation of the accessory, the push-up process causes the locking post 3 to retract into the through groove 13. Then, the upper end of the accessory pushes the movable piece 5 upward, causing the second elastic element 6 to be compressed. As the locking post 3 engages with the slot of the accessory, the second elastic element 6 uses the fixed piece 7 as a fixed fulcrum to push the movable piece 5 to press against the accessory, thereby making the slot of the accessory fit tightly with the locking post 3 and improving the fixing effect of the accessory. When disassembling the parts, by rotating the parts, the locking pin 3 is allowed to enter the slot for the locking pin 3 to pass through, or the locking pin 3 is allowed to retract into the through slot 13 by the second inclined surface 33. Then the second elastic element 6 can push the movable piece 5, so that the movable piece 5 pushes the parts away from the shaft 1, thereby completing the disassembly of the parts and further improving the convenience of the disassembly and assembly process. Among them, the snap ring 8 is clamped in the groove 14 on the shaft 1, thereby restricting the upward movement of the fixed piece 7, so that the second elastic element 6 can apply an elastic thrust to the movable piece 5 with the fixed piece 7 as the fulcrum. Preferably, both the first elastic element 2 and the second elastic element 6 are springs.

[0028] Furthermore, a connecting screw hole 15 is provided on the fixed end 12 of the shaft 1 for fixed connection with the drive mechanism of the food processor.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An output shaft for a household appliance, characterized in that, Includes a shaft (1), on which a plug-in end (11) for docking accessories and a fixed end (12) for connecting the drive mechanism of a food processor are provided. The shaft (1) is also provided with a through groove (13). The through groove (13) is provided with a first elastic element (2) and two locking posts (3). The two locking posts (3) are located on both sides inside the through groove (13). The first elastic element (2) is located between the two locking posts (3). The two locking posts (3) extend outward and protrude out of the through groove (13). Among them, the lower ends of the two card posts (3) are provided with a first inclined surface (31).

2. The output shaft for household appliances according to claim 1, characterized in that, Each of the two locking posts (3) is provided with a baffle (32) on its opposite side. The two baffles (32) are pressed against the two ends of the first elastic element (2). The shape of the baffle (32) is consistent with the cross-sectional shape of the through groove (13). The length and width of the cross-section of the locking post (3) are smaller than the length and width of the cross-section of the through groove (13). The shaft (1) is fitted with a sleeve (4) on the side near the insertion end (11). The upper end of the sleeve (4) has two slots (41). The locking post (3) is fitted into the slots (41), and the baffle (32) abuts against the inner wall of the sleeve (4).

3. The output shaft for household appliances according to claim 2, characterized in that, The shape of the card post (3) is square; Among them, a second inclined surface (33) is provided on one side of the two pins (3) in the counterclockwise rotation direction.

4. The output shaft for household appliances according to claim 2 or 3, characterized in that, Both the through groove (13) and the baffle (32) are square structures.

5. The output shaft for household appliances according to claim 4, characterized in that, The shaft (1) is movably provided with a movable piece (5) located above two locking posts (3). The upper end of the movable piece (5) is provided with a second elastic element (6) sleeved outside the shaft (1). The upper end of the second elastic element (6) is provided with a fixing piece (7). The upper end of the fixing piece (7) is provided with a retaining spring (8). The shaft (1) is provided with a hoop groove (14) corresponding to the retaining spring (8).

6. The output shaft for household appliances according to claim 1, characterized in that, A connecting screw hole (15) is provided on the fixed end (12) of the shaft (1).

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