A self-locking agitator for a washing machine

Abstract

The present invention relates to a self-locking wave wheel for a washing machine, which includes a mounting portion connected to a mounting shaft and a water deflecting portion for washing clothes. A self-locking portion for locking with the mounting shaft is further provided between the mounting portion and the water deflecting portion; a shaft locking sleeve for locking with the self-locking portion is provided on the mounting shaft, a locking claw for elastic scaling and sliding engagement with the shaft locking sleeve is provided on the self-locking portion, and a locking buckle for locking the locking claw is provided on the shaft locking sleeve; the mounting portion is connected to the mounting shaft through meshing teeth that can axially slide and be radially locked; 2 or more water deflecting ribs arranged circumferentially and symmetrically about the center are provided on the water deflecting portion. By providing the self-locking portion and arranging the locking buckle for locking the locking claw on the shaft locking sleeve, the axial movement of the self-locking wave wheel relative to the mounting shaft is restricted, and the self-locking wave wheel is firmly connected to the mounting shaft. The present invention not only saves materials and reduces the installation process, but also is convenient for installation and disassembly, saves costs and improves work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and particularly to a self-locking agitator of a washing machine. Background Art

[0002] Current agitators of washing machines are fastened to the agitator shaft through splines and screws. Not only is the installation troublesome, but sometimes during maintenance or cleaning, the agitator cannot be removed by conventional means, and even destructive means have to be taken to remove it. This not only increases the maintenance cost but is also very uneconomical. How to make the installation and disassembly convenient is a technical problem that we urgently need to solve currently.

[0003] Patent Application No. 201510278484.0 discloses a wave wheel connection assembly for detachably and fixedly connecting a wave wheel to a rotating shaft. The wave wheel connection assembly includes splines and a locking member. The wave wheel is coupled to the rotating shaft through the splines, and the locking member is snap-fitted and fixedly connected to the rotating shaft and abuts against the wave wheel to limit the axial movement of the wave wheel on the rotating shaft. The locking member disclosed in this patent document is a separate component. A receiving cavity is provided at the center of the upper surface of the wave wheel 10 for installing and receiving the locking member. The receiving cavity of the locking body is used to receive the rotating shaft, and the locking effect is achieved by the mutual abutment and engagement of the limiting protrusion and the preset limiting groove on the rotating shaft. The structure is complex.

[0004] To solve this problem, the present invention is hereby proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-locking agitator of a washing machine, by providing a self-locking part on the agitator to overcome the above-mentioned defects.

[0006] According to the above purpose, the technical solution of the present invention is: a self-locking agitator of a washing machine, including a mounting part connected to a mounting shaft and a water deflecting part for washing clothes, and a self-locking part for locking with the mounting shaft is further provided between the mounting part and the water deflecting part.

[0007] An axial lock sleeve for locking with the self-locking part is provided on the mounting shaft, a locking claw for elastic scaling and sliding engagement with the axial lock sleeve is provided on the self-locking part, and a lock for locking the locking claw is provided on the axial lock sleeve.

[0008] Further, the lock is a lock ring formed by the upward protrusion and inward flanging of the material of the axial lock sleeve.

[0009] Further, alternatively, the lock is a lock hole circumferentially arranged on the axial lock sleeve corresponding to the locking claws one by one.

[0010] Furthermore, the self-locking part is an extended molded body of the same material as the mounting part. An inverted "U" - shaped cavity is formed between the self-locking part and the mounting part, and the self-locking end of the self-locking part is arranged in a circumferentially discontinuous manner.

[0011] Further, alternatively, the self-locking part is a separate body connected to the mounting part, the self-locking ends thereof are arranged discontinuously in the circumferential direction, a rotating shaft is provided between the self-locking part and the mounting part, and an elastic body for keeping the self-locking part expanded outwards is provided on the rotating shaft.

[0012] Specifically, the elastic body is a spring.

[0013] Further, the mounting part and the mounting shaft are connected by engaging teeth that can axially slide and radially lock.

[0014] Specifically, the engaging teeth are splines.

[0015] Further, there are two or more water deflecting ribs arranged in the circumferential direction and symmetrically distributed with respect to the center of the circle on the water deflecting part.

[0016] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows: by providing a self-locking part on the agitator, elastic scaling lock claws are provided on the self-locking part, and a lock for locking the lock claws is provided on the shaft lock sleeve. Through the elastic scaling of the lock claws, the engagement operation between the lock claws and the lock is realized, thereby restricting the axial movement of the self-locking agitator relative to the mounting shaft, and the self-locking agitator and the mounting shaft are firmly connected. The present invention not only saves materials such as screws during installation, reduces the installation process, but also is convenient for installation and disassembly, saves costs, improves work efficiency, and saves the maintenance cost and time of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0018] Figure 1 It is a schematic enlarged cross-sectional structure view of the agitator in the first embodiment of the present invention;

[0019] Figure 2 It is a schematic front view structure view of the agitator in the first embodiment of the present invention;

[0020] Figure 3 It is a schematic enlarged cross-sectional structure view of the mounting shaft in the first embodiment of the present invention;

[0021] Figure 4 It is a schematic three-dimensional enlarged structure view of the mounting shaft in the first embodiment of the present invention;

[0022] Figure 5 It is a schematic enlarged cross-sectional structure view before the agitator and the mounting shaft are locked in the first embodiment of the present invention;

[0023] Figure 6 The sectional enlarged structural schematic diagram after the impeller and the mounting shaft are locked in the first embodiment of the present invention;

[0024] Figure 7 The front view structural schematic diagram after the impeller and the mounting shaft are locked in the first embodiment of the present invention;

[0025] Figure 8 The sectional enlarged structural schematic diagram of the impeller in the second embodiment of the present invention;

[0026] Figure 9 The front view structural schematic diagram of the impeller in the second embodiment of the present invention;

[0027] Figure 10 The sectional enlarged structural schematic diagram of the mounting shaft in the second embodiment of the present invention;

[0028] Figure 11 The front view enlarged structural schematic diagram of the mounting shaft in the second embodiment of the present invention;

[0029] Figure 12 The three - dimensional enlarged structural schematic diagram of the mounting shaft in the second embodiment of the present invention;

[0030] Figure 13 The sectional enlarged structural schematic diagram before the impeller and the mounting shaft are locked in the second embodiment of the present invention;

[0031] Figure 14 The sectional enlarged structural schematic diagram after the impeller and the mounting shaft are locked in the second embodiment of the present invention;

[0032] Wherein: 21. Meshing teeth; 22. Mounting part; 23. Rotating shaft; 24. Self - locking part; 25. Elastic body; 26. Locking claw; 27. Water - deflecting part; 31. Mounting shaft; 32. Shaft lock sleeve; 33. Lock; 35. Meshing teeth. Specific embodiments

[0033] Embodiment 1

[0034] Combined with Figures 1-14, is a schematic structural view of an embodiment of a self-locking wave wheel of the washing machine of the present invention. It includes a mounting portion 22 connected to the mounting shaft 31 and a water deflecting portion 27 for washing clothes. A self-locking portion 24 for locking with the mounting shaft 31 is further provided between the mounting portion 22 and the water deflecting portion 27; a shaft lock sleeve 32 for locking with the self-locking portion 24 is provided on the mounting shaft 31, a locking claw 26 for elastic scaling and sliding engagement with the shaft lock sleeve 32 is provided on the self-locking portion 24, and a lock catch 33 for locking the locking claw 26 is provided on the shaft lock sleeve 32; the lock catch 33 is a lock ring formed by the upward convex and inward flanging of the material of the shaft lock sleeve 32; alternatively, the lock catch 33 is a lock hole circumferentially arranged on the shaft lock sleeve 32 corresponding to the locking claw 26 one by one; the self-locking portion 24 is an extended molded body of the same material as the mounting portion 22, an inverted "U" shaped cavity is formed between the self-locking portion 24 and the mounting portion, and the self-locking end of the self-locking portion 24 is circumferentially discontinuously arranged; alternatively, the self-locking portion 24 is a separate body connected to the mounting portion 22, its self-locking end is circumferentially discontinuously arranged, a rotating shaft 23 is provided between the self-locking portion 24 and the mounting portion 22, and a spring 25 for keeping the self-locking portion 24 expanded outward is provided on the rotating shaft 23; a meshing tooth spline for axially sliding and radially locking is provided between the mounting portion 22 and the mounting shaft 31; 4 to 6 water deflecting ribs are circumferentially arranged and symmetrically distributed around the center on the water deflecting portion 27.

[0035] Embodiment 2

[0036] A self-locking wave wheel of a washing machine includes a mounting portion 22 connected to the mounting shaft 31 and a water deflecting portion 27 for washing clothes. A self-locking portion 24 for locking with the mounting shaft 31 is further provided between the mounting portion 22 and the water deflecting portion 27. Specifically, the mounting portion 22 is further provided with a meshing portion 28, and the installation and locking of the self-locking wave wheel with the mounting shaft 31 are realized through the meshing portion 2 and the self-locking portion 24.

[0037] The mounting shaft 31 is a reduction clutch rotating shaft for controlling the rotation of the self-locking wave wheel. The outer surface of the mounting shaft 31 is provided with a shaft lock sleeve 32 and meshing teeth 35. The shaft lock sleeve 32 has a disk surface structure, and a through hole structure is provided at the center of the shaft lock sleeve 32, and is perpendicularly fixed to the mounting shaft 31 through the through hole structure 5.

[0038] Meshing teeth 35 are provided on the outer surface of the mounting shaft 31, and the meshing teeth 35 are located above the shaft lock sleeve 32. Preferably, the meshing teeth 35 are splines.

[0039] The meshing portion 28 is a cylindrical structure, located at the center of the mounting portion 22, and the inner surface of the meshing portion 28 is provided with meshing teeth 21. The mounting shaft 31 is connected to the mounting portion 22. Specifically, the spline 35 of the mounting shaft 31 cooperates with the meshing teeth 21 of the meshing portion 28 of the mounting portion 22 to achieve the connection between the mounting shaft 31 and the mounting portion 22, so as to limit the relative rotation between the mounting portion 22 and the mounting shaft 31, and then realize the connection between the self-locking impeller and the mounting shaft 31 through the spline 35 to limit the relative rotation between the self-locking impeller and the mounting shaft 31. At the same time, the self-locking portion 24 is engaged with the shaft locking sleeve 32 of the mounting shaft 31 to limit the axial movement between the self-locking impeller and the mounting shaft 31. The self-locking portion 24 is provided with an elastically scalable locking claw 26, and the locking claw 26 is located at the lower end of the self-locking portion 24.

[0040] The shaft locking sleeve 32 is provided with a lock buckle 33 for locking the locking claw 26 .

[0041] Reference Figures 3-4 The lock buckle 33 is a lock ring with an upwardly protruding inner edge extending from the material of the shaft lock sleeve 32 .

[0042] Reference Figures 5-7 , the locking claw 26 is provided with a sliding surface and a blocking surface. During installation, the self-locking impeller is first connected to the installation shaft 31 through the meshing teeth 35. At this time, the self-locking impeller and the installation shaft 31 can move axially, and the relative rotation is restricted, pushing the self-locking impeller to move in the direction of the shaft lock sleeve 32. At the same time, the locking claw 26 is pushed inward. Because the locking claw 26 can be elastically scaled, the sliding surface of the locking claw 26 contacts the lock buckle 33, and the self-locking impeller continues to move in the direction of the shaft lock sleeve 32. The locking claw 26 is elastically compressed, and the locking claw 26 slides into the lock buckle 33. After the external force is removed, the locking claw 26 elastically stretches, and the locking claw 26 and the lock buckle 33 are engaged. The blocking surface of the locking claw 26 fits the lock buckle 33. The self-locking impeller and the installation shaft 31 are completed. Through the self-locking impeller locking claw 26 and the lock buckle 33, the spline and the meshing teeth 35, the relative rotation and axial movement of the self-locking impeller relative to the installation shaft 31 are restricted, and the self-locking impeller and the installation shaft 31 are firmly connected.

[0043] During disassembly, the self-locking part 24 is moved inward until the sliding surface of the locking claw 26 is offset from the shaft locking sleeve 32, and the self-locking impeller is lifted upward. The self-locking part 24 of the self-locking impeller is separated from the shaft locking sleeve 32, and at the same time, the self-locking impeller is continued to be lifted upward until the self-locking impeller mounting shaft 31 is separated.

[0044] The water-repelling portion 27 is provided with two or more water-repelling ribs which are circumferentially arranged and symmetrically distributed about the center of a circle.

[0045] Example 3

[0046] Reference Figures 10-12, which is different from Example 2 in that the lock buckles 33 are lock holes arranged circumferentially on the shaft lock sleeve 32 corresponding to the lock claws 26 one by one.

[0047] During installation, first, the self-locking impeller is connected to the installation shaft 31 through the meshing teeth 35, and the self-locking impeller is pushed to move in the direction of the shaft locking sleeve 32. At the same time, the locking claw 26 is pushed inward. Because the locking claw 26 can be elastically scalable, the sliding surface of the locking claw 26 contacts the locking hole. Because the locking claw 26 can be elastically scalable, the locking claw 26 is deformed, and the self-locking impeller continues to move in the direction of the shaft locking sleeve 32. The locking claw 26 passes through the locking hole, and the blocking surface of the locking claw 26 fits the lower surface of the shaft locking sleeve 32. The shaft locking sleeve 32 and the locking claw 26 are slidably engaged. The self-locking impeller and the installation shaft 31 are installed. Through the self-locking impeller locking claw 26 and the shaft locking sleeve 32, the spline and the meshing teeth 35, the relative rotation and axial movement of the self-locking impeller relative to the installation shaft 31 are restricted, and the self-locking impeller and the installation shaft 31 are firmly connected.

[0048] During disassembly, the self-locking part 24 is moved inward until the sliding surface of the locking claw 26 is offset from the shaft locking sleeve 32, and the self-locking impeller is lifted upward. The self-locking part 24 of the self-locking impeller is separated from the shaft locking sleeve 32, and at the same time, the self-locking impeller is continued to be lifted upward until the self-locking impeller mounting shaft 31 is separated.

[0049] Reference Figures 1-2 The self-locking portion 24 is an extended body of the mounting portion 22. An inverted "U"-shaped cavity is formed between the self-locking portion 24 and the mounting portion 22. The self-locking portion 24 is provided with a self-locking end 26, and the self-locking end 26 of the self-locking portion 24 is arranged discontinuously in the circumferential direction.

[0050] Example 4

[0051] Referring to 8-9, the difference between this embodiment and embodiment 3 is that the self-locking portion 24 is a separate body connected to the mounting portion 22, and its self-locking end is arranged discontinuously in the circumferential direction. A rotating shaft 23 is provided between the self-locking portion 24 and the mounting portion 22, and an elastic body 25 is provided on the rotating shaft 23 to keep the self-locking portion 24 expanding toward the periphery.

[0052] Specifically, the elastic body 25 is a spring.

[0053] Referring to 13-14, during installation, the self-locking impeller is first connected to the installation shaft 31 through the meshing teeth 35, and the self-locking impeller is pushed to move in the direction of the shaft locking sleeve 32. At the same time, the locking claw 26 is pushed inward, and the self-locking portion 24 rotates with the rotating shaft 23 as the central axis. The elastic body 25 is compressed, and the sliding surface of the locking claw 26 contacts the locking hole. Because the locking claw 26 can be elastically scalable, the locking claw 26 is deformed, and the sliding surface of the locking claw 26 contacts the locking hole. Because the locking claw 26 can be elastically scalable, the locking claw 26 is deformed, and the self-locking impeller is continuously pushed to move in the direction of the shaft locking sleeve 32. The shaft locking sleeve 32 and the locking claw 26 are slidably engaged. The self-locking impeller and the installation shaft 31 are installed. Through the self-locking impeller locking claw 26 and the shaft locking sleeve 32, the spline and the meshing teeth 35, the relative rotation and axial movement of the self-locking impeller relative to the installation shaft 31 are restricted, and the self-locking impeller and the installation shaft 31 are firmly connected.

[0054] During disassembly, the self-locking part 24 is moved inward until the sliding surface of the locking claw 26 is offset from the shaft locking sleeve 32, and the self-locking impeller is lifted upward. The self-locking part 24 of the self-locking impeller is separated from the shaft locking sleeve 32, and at the same time, the self-locking impeller is continued to be lifted upward until the self-locking impeller mounting shaft 31 is separated.

[0055] Through the above operation, materials such as screws are saved during installation, the installation process is reduced, and the installation and disassembly are convenient, which saves costs, improves work efficiency, and saves maintenance costs and time for the washing machine.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-locking washing machine agitator, comprising a mounting portion (22) connected to a mounting shaft (31) and a water deflecting portion (27) for washing clothes, characterized in that: A self-locking part (24) for locking with the mounting shaft (31) is further provided between the described mounting part (22) and the water deflecting part (27). A shaft locking sleeve (32) for locking with the self-locking part (24) is provided on the mounting shaft (31). Lock claws (26) for elastic scaling and sliding engagement with the shaft locking sleeve (32) are provided on the self-locking part (24). A lock catch (33) for locking the lock claws (26) is provided on the shaft locking sleeve (32). The lock catch (33) is a lock ring formed by upward convex and inward flanging of the material of the shaft locking sleeve (32), or the lock catch (33) is a lock hole circumferentially arranged on the shaft locking sleeve (32) corresponding to the lock claws (26) one by one. The mounting part (22) is connected to the mounting shaft (31) through meshing teeth (35) that can axially slide and radially lock. Two or more water deflecting ribs arranged circumferentially and symmetrically about the center of the circle are provided on the water deflecting part (27).

2. The self-locking wave wheel of the washing machine according to claim 1, characterized in that: The self-locking part (24) is an extended forming body of the same material as the mounting part (22). An inverted "U" - shaped cavity is formed between the self-locking part (24) and the mounting part. The self-locking end of the self-locking part (24) is arranged discontinuously in the circumferential direction.

3. The self-locking wave wheel of the washing machine according to claim 1, characterized in that: The self-locking part (24) is a separate body connected to the mounting part (22). Its self-locking end is arranged discontinuously in the circumferential direction. A rotating shaft (23) is provided between the self-locking part (24) and the mounting part (22). An elastic body (25) for keeping the self-locking part (24) expanding outwards is provided on the rotating shaft (23).

4. The self-locking pulsator of a washing machine according to claim 3, characterized in that: The elastic body (25) is a spring.

5. The self-locking wave wheel of the washing machine according to claim 1, wherein: The meshing teeth (35) are splines.

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