Disassembling and assembling structure of impeller of washing machine

Abstract

The utility model discloses a dismounting structure of a washing machine impeller, which belongs to the technical field of washing machines, and is characterized by comprising an impeller main body, a spline housing integrally arranged on the impeller main body and used for being matched with an output shaft spline, and a nut integrally arranged on the impeller main body and used for being in threaded connection with a bolt. The disassembly and assembly structure can effectively reduce the disassembly and assembly difficulty of the impeller, and disassembly and assembly of the impeller are more convenient and faster.

Description

Technical Field

[0001] This utility model belongs to the field of washing machine technology, and specifically relates to a disassembly and assembly structure for a washing machine impeller. Background Technology

[0002] Currently, with the development of washing machine automation technology, fully automatic washing machines are gradually entering thousands of households. Among them, fully automatic washing machines are mainly divided into two types: top-loading washing machines and front-loading washing machines. After a period of use, existing washing machines often accumulate hard-to-detect dirt and bacteria on the lower surface of the top-loading drum, the inner tub, and the hidden areas of the outer tub wall. These areas are difficult to clean effectively. If cleaning is neglected for a long time, it may lead to cross-infection, skin diseases, and other health problems. The most reliable way is to disassemble each part and then clean it.

[0003] Since most existing washing machines connect the impeller and the output shaft of the drive component via bolts, the actual repair and cleaning of the impeller is challenging, even though the threaded connection between the impeller and the output shaft can be disassembled relatively easily.

[0004] The primary problem is that the surface of the pulsator is on the same level as the bottom of the washing machine tub, lacking a leverage point and making it difficult to remove directly. Repair personnel often need to use special tools such as hooks for assistance, which undoubtedly increases the complexity and difficulty of the operation. Secondly, because the pulsator and the output shaft use a spline fit, these spline teeth will form difficult-to-remove deposits in the gaps due to water penetration and accumulation during long-term use. These deposits cause the pulsator and the output shaft to become extremely tight, almost forming an inseparable whole. This tight fit greatly increases the difficulty of separating the pulsator from the output shaft, making the disassembly and assembly of the pulsator even more troublesome. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a disassembly and assembly structure for a washing machine pulsator. The technical problem to be solved by this utility model is: how to reduce the difficulty of disassembling and assembling the pulsator.

[0006] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: a disassembly and assembly structure for a washing machine impeller, comprising an impeller body, wherein a spline sleeve for engaging with the spline of an output shaft is integrally provided on the impeller body, and a nut is integrally provided on the impeller body for threaded connection with a bolt.

[0007] In the above-mentioned disassembly and assembly structure of a washing machine impeller, the spline sleeve and the nut are both coaxially arranged with the impeller body, and the nut is located inside the spline sleeve.

[0008] In the above-mentioned disassembly and assembly structure of a washing machine impeller, the output shaft is provided with a threaded hole for connection with a fastener, and the inner diameter of the nut is larger than the diameter of the threaded hole.

[0009] In the above-mentioned disassembly and assembly structure of a washing machine impeller, a positioning step is provided inside the spline sleeve, and the upper end face of the output shaft abuts against the step surface of the positioning step.

[0010] In the above-mentioned disassembly and assembly structure of a washing machine impeller, a cover is detachably connected to the impeller body, and the cover is used to cover the nut and the output shaft.

[0011] In the above-mentioned disassembly and assembly structure of a washing machine impeller, the impeller body is provided with a connecting hole, and the cover is provided with a connecting hook, which is engaged with the connecting hole.

[0012] In the above-mentioned disassembly and assembly structure of a washing machine impeller, the impeller body is provided with an annular protrusion, and the outer side wall of the cover is in contact with the inner side wall of the annular protrusion.

[0013] In the above-mentioned disassembly and assembly structure of a washing machine impeller, a positioning groove is provided on the annular protrusion, and a positioning protrusion is provided on the cover, the positioning protrusion being inserted into the positioning groove.

[0014] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0015] By integrating a nut for threaded connection with bolts onto the impeller body, when disassembling or assembling the impeller body, the operator can simply connect the external bolts to the nut, and apply force to the impeller body through the bolts, avoiding direct force on the impeller body and causing damage. Using the bolts as the point of force makes the disassembly and assembly of the impeller more convenient and faster, effectively reducing the difficulty of disassembling and assembling the impeller. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of an embodiment;

[0017] Figure 2 for Figure 1 Enlarged view of part A;

[0018] Figure 3 This is a partial structural schematic diagram of an embodiment;

[0019] Figure 4 for Figure 3 Enlarged view of part B;

[0020] Figure 5 This is a schematic diagram of the structure of the cover in the embodiment.

[0021] Reference numerals in the attached drawings: 1. Impeller body; 2. Spline sleeve; 3. Nut; 4. Threaded hole; 5. Positioning step; 6. Cover; 7. Connecting hole; 8. Connecting hook; 9. Annular protrusion; 10. Positioning groove; 11. Positioning protrusion. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] A disassembly and assembly structure for a washing machine pulsator, such as... Figures 1 to 5 As shown, it includes a pulsator body 1, on which a spline sleeve 2 for spline engagement with the output shaft is integrally provided, and the spline sleeve 2 is coaxially arranged with the pulsator body 1.

[0024] A nut 3 is integrally provided on the impeller body 1. The nut 3 is used for threaded connection with the bolt. The nut 3 is coaxially arranged with the impeller body 1 and is located inside the spline sleeve 2.

[0025] It should be noted that the output shaft has a threaded hole 4 for connecting with a fastener. The fastener is a screw, which passes through the nut 3 and is threadedly connected to the threaded hole 4 on the output shaft to achieve a fixed connection between the impeller body 1 and the output shaft.

[0026] In this embodiment, the inner diameter of the nut 3 is larger than the diameter of the threaded hole 4. When the bolt is threadedly connected to the nut 3, it can prevent the bolt from entering the threaded hole 4 and avoid damage to the threaded hole 4 due to misoperation.

[0027] The spline sleeve 2 is provided with a positioning step 5. The upper end face of the output shaft abuts against the step surface of the positioning step 5, thereby ensuring the relative position stability between the output shaft and the spline sleeve 2.

[0028] It should be noted that the nut 3 can be made of metal or plastic, and there is no specific limitation on its material. In this embodiment, the spline sleeve 2 can be made of plastic, and the nut 3 can be made of stainless steel. The spline sleeve 2 and the nut 3 can be integrally injection molded, or the spline sleeve 2 and the nut 3 can be machined in one piece using stainless steel.

[0029] A cover 6 is detachably connected to the impeller body 1. The cover 6 is used to seal the nut 3 and the output shaft to prevent external impurities and dust from entering the nut 3 or the output shaft, thus ensuring the reliability of the structure.

[0030] The impeller body 1 has a connection hole 7, and the cover 6 has a connection hook 8. The connection hook 8 is engaged with the connection hole 7. The connection hook 8 can be disengaged or engaged with the connection hole 7 by external force. The cover 6 is quick and easy to disassemble and assemble.

[0031] The impeller body 1 is provided with an annular protrusion 9. The outer side wall of the cover 6 is in contact with the inner side wall of the annular protrusion 9. This not only ensures the stability of the cover 6, but also forms a seal when the cover 6 and the annular protrusion 9 are in place.

[0032] A positioning groove 10 is provided on the annular protrusion 9, and a positioning protrusion 11 is provided on the cover 6. The positioning protrusion 11 is inserted into the positioning groove 10. The positioning groove 10 restricts the positioning protrusion 11, thereby achieving circumferential positioning of the cover 6 and ensuring the stability of the cover 6.

[0033] The working principle of this utility model is as follows:

[0034] When disassembling the impeller body 1, first disconnect the fastener from the threaded hole 4 and remove it. Then, connect the external bolt and nut 3 by thread. Finally, apply force to the impeller body 1 by bolt to separate the spline sleeve 2 from the output shaft.

[0035] When installing the impeller body 1, first connect the external bolts and nuts 3 by thread. Apply force to the impeller body 1 with the bolts to install it into the corresponding position so that the output shaft and spline sleeve 2 are splined. Then, rotate the bolts to remove it. Finally, connect the fasteners to the threaded hole 4 by thread.

[0036] It should be noted that applying force to the impeller body 1 through bolts can effectively avoid damage caused by directly applying force to the impeller body 1. Using bolts as the force point makes the impeller easier and faster to disassemble and assemble, effectively reducing the difficulty of disassembling and assembling the impeller.

[0037] Alternatively, the external bolts and nuts 3 can be threaded together, with the bolt end face pressing against the end face of the output shaft. Through the action of the threads, the impeller body 1 can be gradually raised, thereby removing the impeller body 1.

[0038] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A disassembly and assembly structure for a washing machine impeller, comprising an impeller body (1), characterized in that: The impeller body (1) is integrally provided with a spline sleeve (2) for spline engagement with the output shaft, and the impeller body (1) is integrally provided with a nut (3) for threaded connection with a bolt.

2. The disassembly and assembly structure of a washing machine impeller according to claim 1, characterized in that: The spline sleeve (2) and the nut (3) are both coaxially arranged with the impeller body (1), and the nut (3) is located inside the spline sleeve (2).

3. The disassembly and assembly structure of a washing machine impeller according to claim 1, characterized in that: The output shaft has a threaded hole (4) for connecting with a fastener, and the inner diameter of the nut (3) is larger than the diameter of the threaded hole (4).

4. The disassembly and assembly structure of a washing machine impeller according to claim 1, characterized in that: The spline sleeve (2) is provided with a positioning step (5), and the upper end face of the output shaft abuts against the step surface of the positioning step (5).

5. The disassembly and assembly structure of a washing machine impeller according to claim 1, characterized in that: A cover (6) is detachably connected to the impeller body (1), and the cover (6) is used to cover the nut (3) and the output shaft.

6. The disassembly and assembly structure of a washing machine impeller according to claim 5, characterized in that: The impeller body (1) is provided with a connection hole (7), and the cover (6) is provided with a connection hook (8), which is engaged with the connection hole (7).

7. The disassembly and assembly structure of a washing machine impeller according to claim 6, characterized in that: The impeller body (1) is provided with an annular protrusion (9), and the outer side wall of the cover (6) is in contact with the inner side wall of the annular protrusion (9).

8. The disassembly and assembly structure of a washing machine impeller according to claim 7, characterized in that: The annular protrusion (9) has a positioning groove (10), and the cover (6) has a positioning protrusion (11), which is inserted into the positioning groove (10).

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