Impeller easy-to-disassemble structure and impeller washing machine

Abstract

The invention relates to a pulsator easy-to-disassemble structure, which is mounted on a pulsator washing machine, a pulsator is driven by a motor shaft to rotate, the pulsator easy-to-disassemble structure comprises: a positioning column which is fixed on the pulsator and sleeves the outer side of the motor shaft, and a positioning bead is mounted on the positioning column; the positioning piece can axially move relative to the positioning column; the positioning piece comprises a vertical face and an inclined face with the diameter larger than that of the vertical face. A limiting groove is formed in the motor shaft; when the positioning piece moves to the first position, the vertical face clamps the positioning ball in the limiting groove, so that the impeller is fixed relative to the motor shaft in the axial direction, and when the positioning piece moves to the second position, the inclined face corresponds to the positioning ball in position, the positioning ball is separated from the limiting groove, and the impeller can move relative to the motor shaft in the axial direction. According to the embodiment of the invention, locking and unlocking of the impeller in the axial direction can be completed through simple pressing or lifting actions, tools such as a screwdriver do not need to be used, and convenience of daily maintenance and cleaning is improved.

Description

Technical Field

[0001] This invention relates to the field of electrical appliances, specifically to an easy-to-disassemble pulsator structure and a pulsator washing machine. Background Technology

[0002] In existing top-loading washing machines, there are two main types of connections between the impeller and the motor shaft. One type uses fasteners such as screws and nuts to reliably connect the impeller to the motor shaft. While this method achieves good connection strength and torque transmission, it is complex to assemble and disassemble, and small parts like screws and nuts are easily lost or misplaced, making maintenance and cleaning inconvenient. Furthermore, threaded connections are prone to corrosion and jamming. The other type uses spring clips or elastic clips to secure the two components. Disassembly often requires significant external force, and this forceful disassembly can easily damage the impeller, spring clips, or related plastic parts. Overall, impeller disassembly is inconvenient, resulting in a poor consumer experience and difficulties in cleaning and maintenance.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention discloses an easy-to-disassemble pulsator structure and a pulsator washing machine.

[0005] The technical solutions adopted in the embodiments of the present invention are as follows: A detachable impeller structure is installed in a pulsator washing machine. The pulsator is driven to rotate by a motor shaft. The detachable impeller structure includes: a positioning post, fixed to the pulsator and sleeved on the outside of the motor shaft, with a positioning bead installed on the positioning post; a positioning element, axially movable relative to the positioning post; the positioning element includes a vertical surface and an inclined surface with a diameter larger than the vertical surface; a limiting groove is provided on the motor shaft; when the positioning element moves to a first position, the vertical surface locks the positioning bead in the limiting groove, fixing the pulsator axially relative to the motor shaft; when the positioning element moves to a second position, the inclined surface corresponds to the position of the positioning bead, and the positioning bead disengages from the limiting groove, allowing the pulsator to move axially relative to the motor shaft.

[0006] A further technical solution is that the inclined surface is located at the upper end of the vertical surface, and the positioning bead is disengaged from the limiting groove by pressing the positioning member.

[0007] A further technical solution is to install an elastic element between the positioning element and the impeller.

[0008] A further technical solution is that a handle is fixed on the impeller; a handle cover that can move axially relative to the handle is installed in the handle; the positioning element is a positioning sleeve fitted on the positioning post, and the positioning sleeve can move axially downward with the handle cover.

[0009] A further technical solution is that the positioning sleeve includes a first mounting groove at the lower end and a first pressing surface at the upper end; a positioning ring is provided around the outer side of the first pressing surface; a positioning wing is provided on the side of the handle cover; the bottom end of the handle cover is used to contact the first pressing surface; the positioning wing is installed between the handle and the positioning ring; and an elastic element is fixed between the first mounting groove and the positioning post.

[0010] A further technical solution is that the inclined surface is located at the lower end of the vertical surface, and the positioning bead is disengaged from the limiting groove by lifting the positioning member.

[0011] A further technical solution is that a handle cover is fixed to the top of the positioning post; the positioning element is a handle that can move axially relative to the handle cover; and an elastic element is installed between the handle and the handle cover.

[0012] A further technical solution is that the positioning column has an installation channel at its center, and a positioning step is provided in the installation channel; the handle cover is provided with a fixing column that extends into the installation channel; the fixing member is fixed upward from the lower end of the installation channel to the fixing column and is locked at the positioning step.

[0013] A further technical solution is that an annular fixing groove is provided at the center of the impeller, and a positioning post is fixed in the fixing groove; a mounting hole is provided at the center of the fixing groove, and the motor shaft is circumferentially fixed to the mounting hole through a spline, so that the motor shaft can transmit torque to the mounting hole and drive the impeller to rotate.

[0014] A pulsator washing machine with a detachable pulsator structure as described in any of the preceding claims includes a motor, an outer drum, and an inner drum installed in the outer drum; the motor shaft of the motor extends into the inner drum of the washing machine; the pulsator is installed in the inner drum, and the pulsator is fixed to the motor shaft by the detachable pulsator structure.

[0015] The beneficial effects of the embodiments of the present invention are as follows:

[0016] This invention, by setting a positioning post at the center of the impeller, a radially movable positioning bead, and an axially movable positioning component, in conjunction with a limiting groove on the motor shaft, allows the impeller to be locked and unlocked in the axial direction by a simple pressing or pulling action, without the need for tools such as screwdrivers, significantly improving the convenience of daily maintenance and cleaning.

[0017] In this embodiment of the invention, the positioning bead partially engages with the limiting groove of the motor shaft and is reliably pressed against the motor shaft by the vertical surface of the positioning component, thereby locking the impeller in the axial direction and preventing axial movement of the impeller during operation. Simultaneously, the motor shaft and the impeller are circumferentially fixed via splines, achieving stable torque transmission. The locking and limiting mechanism works in conjunction with the torque transmission structure, ensuring easy disassembly while maintaining reliability during high-frequency rotation in the washing process.

[0018] This invention provides two specific implementation methods: a press-type structure for easy operation and a pull-type structure for high component integration. These can respectively meet different product positioning and user preferences, and both methods avoid requiring users to reach into water or narrow gaps for operation, making the process more hygienic and safer.

[0019] The easily detachable impeller structure of this invention is arranged between the impeller and the motor shaft, without changing the basic layout of the main structure such as the outer and inner drums, resulting in low modification and usage costs. The same design concept can be adapted to impeller washing machines of different specifications and numbers of inner drums, which is beneficial for promotion and application in product series development. Attached Figure Description

[0020] Figure 1 This is an exploded view of the easily detachable impeller structure in an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the assembly of the impeller and the motor shaft in an embodiment of the present invention.

[0022] Figure 3 This is a partial structural diagram of the motor shaft in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the positioning sleeve in an embodiment of the present invention.

[0024] Figure 5 for Figure 4 A diagram from another direction.

[0025] Figure 6 This is an exploded view of another embodiment of the easily detachable impeller structure in this invention.

[0026] Figure 7 for Figure 6 A schematic diagram of the handle structure.

[0027] Figure 8 for Figure 7 A diagram showing another direction.

[0028] Figure 9 for Figure 6 A schematic diagram of the handle cover.

[0029] Figure 10This is a partial structural diagram of a pulsator washing machine according to an embodiment of the present invention.

[0030] In the diagram: 1. Outer cylinder; 2. Inner cylinder; 3. Impeller; 301. Fixing groove; 4. Motor shaft; 401. Limiting groove; 402. Spline; 5. Positioning pin; 501. Positioning bead; 502. Fixing component; 6. Positioning sleeve; 601. Vertical surface; 602. Inclined surface; 603. First pressing surface; 604. First mounting groove; 605. Positioning ring; 7. Elastic component; 8. Handle cover; 801. Positioning wing; 802. Outer wall; 803. Top surface; 804. Fixing pin; 9. Handle; 901. Second mounting groove; 902. Second pressing surface. Detailed Implementation

[0031] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the device proposed by this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, only for the purpose of conveniently and clearly illustrating the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0033] Example 1 This embodiment discloses an easy-to-disassemble pulsator structure for a pulsator washing machine. Figure 1 This is an exploded view of the easily detachable impeller structure in an embodiment of the present invention. Figure 1 As shown, the impeller 3 is driven to rotate by the motor shaft 4. Specifically, the easily detachable impeller structure includes a positioning post 5 and a positioning component.

[0034] The positioning pin 5 is fixed to the impeller 3 and sleeved on the outside of the motor shaft 4. Figure 2 This is a schematic diagram illustrating the installation of the impeller and motor shaft in an embodiment of the present invention. Figure 2As shown, an annular fixing groove 301 is formed at the center of the impeller 3. This fixing groove 301 has a groove structure in the axial direction, and a mounting hole is provided at the center of the fixing groove 301. The motor shaft 4 is circumferentially fixed to the mounting hole via a spline 402, allowing the motor shaft 4 to transmit torque to the mounting hole and drive the impeller 3 to rotate. A positioning pin 5 is fixed in the fixing groove 301, extending axially along the motor shaft 4 and sleeved on the outside of the motor shaft 4.

[0035] The positioning post 5 is roughly a hollow cylindrical structure, with its lower end fixed to the fixing groove 301. Several radially penetrating holes or windows are machined on the post body of the positioning post 5 as receiving positions for accommodating and installing the positioning bead 501. To improve assembly flexibility and positioning reliability, the receiving positions are designed to be interconnected internally and externally; that is, the receiving positions are located on the side wall of the positioning post 5, penetrating the inner cavity and outer side of the positioning post 5, so that part of the positioning bead 501 is located within the receiving positions, can protrude towards the inner and outer sides of the positioning post 5, and the positioning bead 501 can move slightly relative to the positioning post 5 within the receiving positions.

[0036] Figure 3 This is a partial structural diagram of the motor shaft in an embodiment of the present invention. Figure 3 As shown, a limiting groove 401 is provided on the motor shaft 4, corresponding to the mounting position of the positioning bead 501. A spline 402 is also mounted on the motor shaft 4.

[0037] Figure 4 This is a schematic diagram of the positioning sleeve in an embodiment of the present invention. Figure 5 for Figure 4 A diagram from another direction. (See example.) Figure 4 , Figure 5 As shown, in this embodiment, the positioning element is a sleeve-shaped or annular member, the positioning sleeve 6, whose axis is coaxial with the motor shaft 4. It is fitted around the outside of the positioning post 5 and covers the receiving position. The positioning sleeve 6 can move axially relative to the positioning post 5. The inner wall of the positioning sleeve 6 is provided with a vertical surface 601 and an inclined surface 602 with a radial diameter larger than the vertical surface 601. The vertical surface 601 and the inclined surface 602 are connected axially. The vertical surface 601 is parallel or approximately parallel to the axis of the motor shaft 4, and is used to apply an inward radial force to the positioning bead 501 when the positioning sleeve 6 is in the first position, thereby keeping the positioning bead 501 locked in the limiting groove 401. The inclined surface 602 has a larger diameter in the radial direction than the vertical surface 601, and is used to release the radial force applied to the positioning bead 501 when the positioning sleeve 6 moves to the second position, so that the positioning bead 501 can disengage from the limiting groove 401 of the motor shaft 4. The movement direction of the positioning component can be designed as pressing down or pulling up. In this embodiment, the inclined surface 602 is located above the vertical surface 601. The positioning bead 501 can be disengaged from the limiting groove 401 by pressing the positioning sleeve 6.

[0038] Specifically, when assembled and in working condition, the positioning sleeve 6 is in the first position, with its vertical surface 601 corresponding to the position of the positioning bead 501. The positioning bead 501 is restricted by the vertical surface 601 in the direction close to the motor shaft 4, and part of the positioning bead 501 enters the limiting groove 401 of the motor shaft 4, axially locking the positioning post 5, so that the impeller 3 is locked on the motor shaft 4 in the axial direction and cannot slide freely in the axial direction.

[0039] When it is necessary to disassemble the impeller 3, the operator applies an axial force to the positioning component. In this embodiment, this is by pressing the positioning sleeve 6, causing the positioning sleeve 6 to move downwards along the motor shaft 4 to the second position. The vertical surface 601 exits the area directly aligned with the positioning bead 501, and the upper inclined surface 602 aligns with the positioning bead 501. At this position, because the radial diameter of the inclined surface 602 is larger, the positioning bead 501 is no longer restricted and disengages from the limiting groove 401 of the motor shaft 4. At this time, the impeller 3 and the motor shaft 4 are axially unlocked, and the operator can pull the impeller 3 out of the motor shaft 4 as a whole, achieving quick disassembly.

[0040] During reassembly, the impeller 3 is inserted into the motor shaft 4 through the mounting hole. When the positioning sleeve 6 returns to the first position under the action of external force, the positioning bead 501 is re-aligned with the limiting groove 401 and engages, achieving axial locking.

[0041] Furthermore, the positioning bead 501 is preferably a steel ball or a high-strength engineering plastic ball, but it can also be a short column or other cross-sectional shape, as long as it can achieve radial movement and limiting functions, this embodiment covers them all.

[0042] Furthermore, an elastic element 7 is installed between the positioning sleeve 6 and the impeller 3. The elastic element 7 provides an automatic reset force to the positioning sleeve 6, ensuring that it reliably returns to its first position after being pressed and released. This guarantees that the positioning bead 501 is again limited by the vertical surface 601, achieving automatic relocking of the impeller 3 and the motor shaft 4. This avoids the need for manual retraction during reset, reducing the difficulty of use, improving the reliability and stability of the assembly and disassembly process, and preventing the risk of incomplete impeller locking or loosening due to incomplete reset.

[0043] Furthermore, a handle 9 is fixed to the impeller 3. The handle 9 is typically located above the central area of ​​the impeller 3 and is a hollow, columnar structure. A handle cover 8, which can move axially relative to the handle 9, is installed within the handle 9. The handle cover 8 is a cover plate or button-like structure, which, when pressed down, can move the positioning sleeve 6. This allows the user's pressing operation to be directly transmitted from the outside of the impeller 3 to the positioning sleeve 6, enabling the user to unlock the impeller 3 simply by pressing a button-like structure. The operation is intuitive and conforms to user habits. Moreover, the axial movement of the handle cover 8 triggers the internal mechanism, eliminating the need for the user to contact structures in water or crevices, thus improving convenience and hygiene, and reducing the risk of misoperation and injury.

[0044] In this embodiment, the positioning sleeve 6 and the handle 9 are two parts, but in some implementations the positioning sleeve 6 and the handle 9 can also be made as a single unit to reduce the number of parts.

[0045] Furthermore, the positioning sleeve 6 includes a first mounting groove 604 at the lower end and a first pressing surface 603 at the upper end. A positioning ring 605, higher than the first pressing surface 603, is provided around the outer side of the first pressing surface 603. A limiting ring is provided at the upper end of the handle 9, and a positioning wing 801 protruding outward in the radial direction is provided on the side of the handle cover 8. The bottom end of the handle cover 8 is used to contact the first pressing surface 603, making the pressing force transmission path clear and stable. The positioning wing 801 is installed between the limiting ring and the positioning ring 605 of the handle 9 to limit the axial travel of the handle cover 8 and also to limit the radial wobble of the handle cover 8, so that it is always accurately aligned with the first pressing surface 603, ensuring precise action and stable feel, improving the guiding and anti-displacement ability of the handle cover 8 after assembly, and reducing jamming. The elastic element 7 is fixed between the first mounting groove 604 and the positioning post 5 to achieve reliable positioning and guidance of the elastic element 7, and to prevent the elastic element 7 from shifting or falling off during repeated pressing. This coordinated structure effectively limits the movement range of the handle cover 8, enabling controllable pressing depth and reset height, improving the overall reliability, consistency, and service life of the mechanism, and ensuring the smoothness and safety of the impeller assembly and disassembly operations.

[0046] Example 2 Figure 6 This is an exploded view of another embodiment of the easily detachable impeller structure in this invention. Figure 6 As shown, in Embodiment 2, the pulsator easy-to-disassemble structure also includes a positioning post 5 and a positioning component. The positioning post 5 and the positioning component cooperate with each other to determine the two states of the positioning bead 501, thereby enabling the pulsator 3 to be axially fixed on the motor shaft 4, or to be easily disassembled relative to the motor shaft 4. Its basic principle is the same as that of Embodiment 1. The difference is that Embodiment 2 proposes another specific structure and cooperation relationship of the positioning post 5 and the positioning component.

[0047] In embodiment two, the positioning element is a handle 9. The positioning post 5 is also fixed to the impeller 3, and the handle 9 can move axially relative to the positioning post 5. Figure 7 This is a schematic diagram of the handle structure in an embodiment of the present invention. Figure 7 As shown, the inner wall of the handle 9 is provided with a vertical surface 601 and an inclined surface 602 with a radial diameter larger than that of the vertical surface 601. The vertical surface 601 and the inclined surface 602 are connected in the axial direction. The inclined surface 602 is located below the vertical surface 601. By pulling the handle 9, the positioning bead 501 is disengaged from the limiting groove 401.

[0048] Compared to the press-type positioning component in Example 1, the main difference in Example 2 is that, in the normal locked state, the handle 9 is in the first position, and the vertical surface 601 restricts the positioning bead 501, causing it to be stuck in the limiting groove 401, thus keeping the positioning post 5 locked, which in turn keeps the impeller 3 locked. During disassembly, pulling the handle 9 moves it upwards to the second position, where the inclined surface 602 in the lower position aligns with the positioning bead 501, allowing the positioning bead 501 to disengage from the limiting groove 401 and thus unlocking the device.

[0049] Furthermore, a handle cover 8 is fixed to the top of the positioning post 5, and an elastic element 7 is installed between the handle 9 and the handle cover 8. Figure 8 for Figure 7 A diagram showing another direction. Figure 9 This is a schematic diagram of the handle cover in an embodiment of the present invention. Figure 8 , Figure 9 As shown, a second annular mounting groove 901 is provided at the upper end of the handle 9, and a second pressing surface 902 is also provided on the inner wall of the handle 9. The handle cover 8 includes an annular outer wall 802, which is inserted into the second mounting groove 901. The elastic element 7 is installed between the second pressing surface 902 and the top surface 803 of the handle cover 8, so that the elastic element 7 is reliably constrained. On the one hand, it provides a stable restoring force for the handle 9, so that after the lifting or pressing operation is completed, the handle 9 can automatically return to the initial locked position and lock the impeller 3. On the other hand, the outer wall 802 of the handle cover 8 inserted into the second mounting groove 901 forms good radial guidance and axial limitation, preventing the handle cover 8 from shaking, deflecting or falling out during operation, which helps to ensure the stability of the force transmission path, smooth operation, and reduce jamming and wear.

[0050] Furthermore, the handle cover 8 is fixed to the positioning post 5 by a fastener 502. The fastener 502 can be a screw or a fixing device with the same function. Specifically, the positioning post 5 is a hollow column with an installation channel in its center, and the installation channel is provided with a positioning step structure facing downward. Correspondingly, a fixing post 804 for extending into the installation channel is provided on the top surface 803 of the handle cover 8 facing downward. The fastener 502 extends into the positioning post 5 from the lower end of the positioning post 5 and fixes the handle cover 8 by the fixing post 804. The fixing position of the positioning member can be determined by the position of the positioning step, ensuring the axial installation height and posture stability of the handle cover 8, ensuring reasonable clearance between it and other parts, and the bottom-up locking method achieved by the fastener 502 inserted from below, which is convenient to assemble, highly reliable, and not prone to loosening or displacement during use, improving the assembly consistency and stability of the overall mechanism. In comparison, the press-type operation of Embodiment 1 is more in line with the habit of pressing buttons, and the operation is intuitive. The user's fingers only touch the upper surface of the handle cover 8, without needing to put their hands into water or gaps, reducing the risk of contact with sewage or the internal edges of parts. Embodiment 2 eliminates the independent positioning sleeve 6, and the vertical surface 601 and the inclined surface 602 are directly formed by the inner wall of the handle 9, resulting in higher component integration and a simpler structure, which helps to reduce mold and assembly costs. Both embodiments can achieve the technical effect of easier disassembly of the impeller 3.

[0051] Example 3 The present invention also discloses a washing machine with an easily detachable impeller structure. Figure 10 This is a partial structural diagram of a pulsator washing machine according to an embodiment of the present invention. Figure 10 As shown, the pulsator washing machine in this embodiment includes an outer drum 1 and an inner drum 2. The outer drum 1 is fixed in the machine frame. The inner drum 2 is disposed inside the outer drum 1. The pulsator 3 is installed at the bottom center of the inner drum 2. Figure 1 The illustrated pulsator washing machine has two inner drums 2. The easily detachable pulsator structure in this embodiment is also applicable to washing machines with one or more inner drums. The bottom center of the inner drum 2 has a shaft hole through which the motor shaft 4 passes. The motor shaft 4 extends upwards from the motor and into the inner drum 2. The pulsator 3 is fixed to the motor shaft 4 by the easily detachable pulsator structure in this embodiment and is driven to rotate by the motor shaft 4.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A detachable impeller structure, characterized in that, Installed in a pulsator washing machine, the pulsator is driven to rotate by a motor shaft. The easily detachable pulsator structure includes: A positioning post is fixed to the impeller and sleeved on the outside of the motor shaft, and a positioning ball is installed on the positioning post; The positioning element is axially movable relative to the positioning post; the positioning element includes a vertical surface and an inclined surface with a diameter larger than the vertical surface; A limiting groove is provided on the motor shaft; when the positioning member moves to the first position, the vertical surface locks the positioning bead in the limiting groove, so that the impeller is fixed in the axial direction relative to the motor shaft; when the positioning member moves to the second position, the inclined surface corresponds to the position of the positioning bead, the positioning bead disengages from the limiting groove, so that the impeller can move in the axial direction relative to the motor shaft.

2. The detachable impeller structure according to claim 1, characterized in that, The inclined surface is located at the upper end of the vertical surface, and the positioning bead is disengaged from the limiting groove by pressing the positioning member.

3. The detachable impeller structure according to claim 2, characterized in that, An elastic element is installed between the positioning element and the impeller.

4. The easily detachable impeller structure according to claim 3, characterized in that, A handle is fixed to the impeller; a handle cover that can move axially relative to the handle is installed in the handle; the positioning element is a positioning sleeve fitted on the positioning post, and the positioning sleeve can move axially downward with the handle cover.

5. The detachable impeller structure according to claim 4, characterized in that, The positioning sleeve includes a first mounting groove at the lower end and a first pressing surface at the upper end; a positioning ring is provided around the outer side of the first pressing surface; a positioning wing is provided on the side of the handle cover; the bottom end of the handle cover is used to contact the first pressing surface; the positioning wing is installed between the handle and the positioning ring; and an elastic element is fixed between the first mounting groove and the positioning post.

6. The detachable impeller structure according to claim 1, characterized in that, The inclined surface is located at the lower end of the vertical surface, and the positioning bead is disengaged from the limiting groove by lifting the positioning member.

7. The detachable impeller structure according to claim 6, characterized in that, A handle cover is fixed to the top of the positioning post; the positioning element is a handle that can move axially relative to the handle cover; an elastic element is installed between the handle and the handle cover.

8. The detachable impeller structure according to claim 7, characterized in that, The positioning column has an installation channel at its center, and a positioning step is provided in the installation channel; the handle cover is provided with a fixing column that extends into the installation channel; the fixing member is fixed upward from the lower end of the installation channel into the fixing column and is locked at the positioning step.

9. The squeegee-like structure according to claim 1, characterized in that, An annular fixing groove is provided at the center of the impeller, and a positioning post is fixed in the fixing groove; a mounting hole is provided at the center of the fixing groove, and the motor shaft is circumferentially fixed to the mounting hole through a spline, so that the motor shaft can transmit torque to the mounting hole and drive the impeller to rotate.

10. A pulsator washing machine having a pulsator detachable structure as described in any one of claims 1 to 9, comprising a motor, an outer drum, and an inner drum installed in the outer drum; the motor shaft of the motor extends into the inner drum of the washing machine; the pulsator is installed in the inner drum, and the pulsator is fixed to the motor shaft by the pulsator detachable structure.

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