Outer barrel assembly of washing equipment and washing equipment

Abstract

The utility model discloses an outer barrel assembly of a washing device and the washing device, and the outer barrel assembly comprises an outer barrel which is provided with a barrel body and a barrel bottom located at the lower end of the barrel body; the outer barrel cover is provided with a lower extending edge located above the barrel body and a cover edge extending inwards; the reinforcing sleeve is arranged between the barrel body and the outer barrel cover; the reinforcing sleeve is provided with a lower reinforcing edge matched with the upper end of the barrel body and an upper reinforcing edge matched with the lower extending edge, and the lower reinforcing edge is located on the inner side of the barrel body. By arranging the reinforcing sleeve, the structural strength of the upper end of the outer barrel is enhanced, the barrel opening is prevented from deforming, interference with the inner barrel is avoided, the same roundness of the outer barrel is kept, and the performance and stability of the washing equipment are improved. The reinforcing sleeve is arranged between the barrel body and the outer barrel cover, the lower reinforcing edge of the reinforcing sleeve is located on the inner side of the barrel body and matched with the upper end of the barrel body, the barrel opening can be well supported and reinforced, the structural strength of the barrel opening is effectively improved, and therefore the possibility that the barrel opening deforms in the using process is greatly reduced. And the shape stability of the barrel opening is ensured, so that the phenomenon of interference between the barrel opening and the inner barrel due to deformation of the barrel opening is avoided. The reinforcing sleeve is accurately matched with the barrel body and the outer barrel cover, irregular displacement of all parts of the outer barrel is limited, and it is ensured that the outer barrel can always keep a relatively stable circular contour in a complex motion state, namely the same roundness is kept; and the weight of the barrel opening is increased, so that a balancing effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of washing equipment technology, specifically relating to an outer tub assembly of a washing equipment and a washing equipment having the outer tub assembly. Background Technology

[0002] The existing fully automatic washing machine structure includes: a housing that forms the exterior of the washing machine; an outer tub inside the housing that is suspended and fixed by a support member and used to hold washing water; an inner tub that is rotatably installed inside the outer tub and has an agitator at its bottom; a drive motor installed on the lower side of the outer tub and used to generate driving force for the agitator and the inner tub; a power transmission device for selectively providing the driving force of the drive motor to the agitator and the inner tub; and a drain device installed at the lower part of the outer tub and used to drain the washing water contained in the outer tub to the outside. The outer tub has four hanging ears and is suspended from the housing by a hanging rod device.

[0003] Over long-term use, the outer tub of existing washing machines is prone to deformation at the opening, which can cause interference between it and the inner tub. Furthermore, in order to improve the washing ratio and water content of fully automatic pulsator washing machines, the capacity and speed of these machines are constantly being increased. This has led to significant challenges to the reliability and stability of the structure; for example, varying degrees of friction between the balance ring and the outer tub have occurred at maximum speed.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in the prior art by proposing an outer tub assembly for a washing device. The assembly incorporates a reinforcing sleeve, which enhances the structural strength of the upper part of the outer tub, prevents deformation of the tub opening, avoids interference with the inner tub, and maintains the roundness of the outer tub. This, in turn, improves the performance and stability of the washing device.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] An outer tub assembly of a washing machine includes:

[0008] The outer barrel has a barrel body and a barrel bottom located at the lower end of the barrel body;

[0009] The outer barrel lid has a lower extension edge located above the barrel body and an inwardly extending lid edge;

[0010] A reinforcing sleeve is provided between the barrel body and the outer barrel cover;

[0011] The reinforcing sleeve has a lower reinforcing edge that matches the upper end of the barrel body and an upper reinforcing edge that matches the lower extension edge, with the lower reinforcing edge located inside the barrel body.

[0012] In some embodiments of this application, the upper reinforcing edge is supported inside the lower extension edge.

[0013] In some embodiments of this application, the lower reinforcing edge and the upper reinforcing edge are coaxially arranged annular structures, and the radial dimensions of the lower reinforcing edge and the upper reinforcing edge are the same.

[0014] In some embodiments of this application, the outer barrel cover also has an inner lower edge spaced apart inside the lower extension edge, and an upper insertion groove for receiving the upper reinforcing edge is formed between the lower extension edge and the inner lower edge.

[0015] In some embodiments of this application, the lower end face of the lower extension edge is lower than the lower end face of the inner lower edge.

[0016] In some embodiments of this application, the reinforcing sleeve further has a reinforcing protrusion connected between the upper reinforcing edge and the lower reinforcing edge, the barrel body and the lower extension edge are spaced apart, and the reinforcing protrusion is located between the barrel body and the lower extension edge.

[0017] In some embodiments of this application, the outwardly extending dimension of the reinforcing protrusion is smaller than the thickness of the lower extension edge, and the lower end of the lower extension edge abuts against the reinforcing protrusion.

[0018] In some embodiments of this application, the reinforcing protrusion has an upper reinforcing bend extending outward and downward along the lower end of the upper reinforcing edge, and a lower reinforcing bend extending outward and upward along the upper end of the lower reinforcing edge, wherein the upper reinforcing bend and the lower reinforcing bend are connected.

[0019] In some embodiments of this application, the outer barrel also has a fixing ring fixed inside the barrel body, and a lower insertion groove is formed between the fixing ring and the barrel body, and the lower reinforcing edge is inserted into the lower insertion groove.

[0020] In some embodiments of this application, the upper end face of the fixing ring is lower than the upper end face of the barrel body.

[0021] In some embodiments of this application, the reinforcing sleeve is made of sheet metal.

[0022] In some embodiments of this application, a locking structure is provided between the outer barrel cover and the outer barrel, an outwardly protruding locking protrusion is provided on the barrel body, and a buckle located on the outer barrel cover outside the lower extension edge is provided, the buckle having a downwardly extending locking groove that matches the locking protrusion.

[0023] Based on the outer tub assembly of the aforementioned washing equipment, this utility model also provides a washing equipment having the aforementioned outer tub assembly, with a reinforcing sleeve, which helps to enhance the structural strength of the upper part of the outer tub, prevent deformation of the tub opening, and avoid interference with the inner tub; and increases the weight at the tub opening, which helps to play a balancing role.

[0024] A washing device having the aforementioned outer tub assembly.

[0025] Compared with existing technologies, the advantages and positive effects of this utility model are as follows: The reinforcing sleeve enhances the structural strength of the upper part of the outer tub, prevents tub opening deformation, avoids interference with the inner tub, and maintains the roundness of the outer tub, thus improving the performance and stability of the washing equipment. The reinforcing sleeve is positioned between the tub body and the outer tub cover, with its lower reinforcing edge located inside the tub body and matching the upper part of the tub body. This provides excellent support and reinforcement for the tub opening, effectively increasing its structural strength and significantly reducing the possibility of deformation during use. It also ensures the shape stability of the tub opening, thereby preventing interference with the inner tub due to tub opening deformation. Through precise matching with the tub body and the outer tub cover, the reinforcing sleeve limits irregular displacement of various parts of the outer tub, ensuring that the outer tub maintains a relatively stable circular profile, i.e., maintaining roundness, even under complex movement conditions. Furthermore, the increased weight at the tub opening contributes to balance.

[0026] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of a washing device having the above-mentioned outer tub assembly proposed in this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0030] Figure 3 for Figure 1 A cross-sectional structural diagram;

[0031] Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure of the inner and outer barrels;

[0033] Figure 6 for Figure 4 Schematic diagram of the structure of the reinforced sleeve;

[0034] Figure 7 for Figure 4 Schematic diagram of the structure of the inner and outer barrel lids;

[0035] The outer barrel assembly is 100.

[0036] 10 Outer bucket; 11 Bucket body; 12 Bucket bottom; 13 Fixing ring; 14 Lower insertion groove; 15 Clip protrusion

[0037] Reinforcing sleeve 20; lower reinforcing edge 21; reinforcing protrusion 22; lower reinforcing bend 221; upper reinforcing bend 222; upper reinforcing edge 23;

[0038] Outer lid 30; lower edge 31; inner lower edge 32; lid edge 33; upper insertion groove 34; buckle 35; groove 351. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, with the direction closer to the inner cylinder axis being "inner," and the opposite being "outer." These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0044] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0045] See Figures 1-7The image shows an embodiment of a washing device with the aforementioned outer tub assembly proposed in this utility model. The outer tub assembly 100 of the washing device includes: an outer tub 10, a reinforcing sleeve 20, and an outer tub cover 30. The outer tub 10 has a tub body 11 and a tub bottom 12 located at the lower end of the tub body 11. The outer tub cover 30 has a lower extension edge 31 located above the tub body 11 and an inwardly extending cover edge 33. The reinforcing sleeve 20 is disposed between the tub body 11 and the outer tub cover 30. The reinforcing sleeve 20 has a lower reinforcing edge 21 that matches the upper end of the tub body 11 and an upper reinforcing edge 23 that matches the lower extension edge 31. The lower reinforcing edge 21 is located inside the tub body 11. Providing the reinforcing sleeve 20 helps to enhance the structural strength of the upper end of the outer tub 10, prevents deformation of the tub opening, avoids interference with the inner tub, and maintains the roundness of the outer tub 10, thereby improving the performance and stability of the washing device. A reinforcing sleeve 20 is positioned between the barrel body 11 and the outer barrel cover 30. Its lower reinforcing edge 21 is located inside the barrel body 11 and matches the upper end of the barrel body 11, providing excellent support and reinforcement for the barrel opening. This effectively increases the structural strength of the barrel opening, significantly reducing the possibility of deformation during use. It also ensures the shape stability of the barrel opening, thus preventing interference between the opening and the inner barrel due to deformation. Through precise fitting with the barrel body 11 and the outer barrel cover 30, the reinforcing sleeve 20 restricts irregular displacement of various parts of the outer barrel 10, ensuring that the outer barrel 10 maintains a relatively stable circular profile, i.e., maintains roundness, even under complex motion conditions. Furthermore, it increases the weight at the barrel opening, contributing to balance.

[0046] In some embodiments of this application, the upper reinforcing edge 23 is supported on the inner side of the lower extension edge 31. The lower reinforcing edge 21 and the upper reinforcing edge 23 are coaxially arranged annular structures with the same radial dimension. The coaxial annular structure of the lower reinforcing edge 21 and the upper reinforcing edge 23 ensures that during the operation of the washing equipment, especially under high-speed operation and large eccentric oscillation, the various forces acting on the outer tub assembly 100 can be distributed more evenly along the coaxial direction, effectively improving the overall structural stability of the outer tub assembly. The identical radial dimension of the lower reinforcing edge 21 and the upper reinforcing edge 23 allows the reinforcing sleeve 20 to form a tighter and more regular connection structure when connected to the upper end of the tub body 10 and the lower extension edge 31 of the outer tub cover 30. The upper reinforcing edge 23 being supported on the inner side of the lower extension edge 31 ensures that the outer tub cover 30 is accurately positioned when installed on the tub body 10, making assembly simpler, faster, and more accurate.

[0047] In some embodiments of this application, the outer barrel cover 30 further has an inner lower edge 32 spaced apart inside the lower extension edge 31. An upper insertion groove 34 is formed between the lower extension edge 31 and the inner lower edge 32. The insertion groove 34 is used to accommodate the upper reinforcing edge 23, that is, the upper reinforcing edge 23 is inserted into the upper insertion groove 34. The upper reinforcing edge 23 is inserted into the upper insertion groove 34, forming a tight insertion fit, which can effectively limit the displacement of the upper reinforcing edge 23 in the horizontal and vertical directions, making the connection between the upper reinforcing edge 23 and the outer barrel cover 30 more stable. The upper insertion groove 34 is formed by the lower extension edge 31 and the inner lower edge 32. After the upper reinforcing edge 23 is inserted and installed, it will be in close contact with both the lower extension edge 31 and the inner lower edge 32. When subjected to external force, multiple contact surfaces can cooperate to bear the force, and evenly distribute the external force to the entire upper insertion groove 34 structure and the upper reinforcing edge 23 connected thereto, further enhancing the stability of the connection between the outer barrel cover and the reinforcing sleeve. The upper insertion slot 34 provides a clear installation position for the upper reinforcing edge 23, allowing the upper reinforcing edge 23 to be accurately inserted into the predetermined position when assembled with the outer barrel cover 30; making the assembly process simpler and faster, without the need for complex adjustments or alignment operations, thus improving assembly efficiency and quality.

[0048] In some embodiments of this application, the lower end face of the lower extension edge 31 is lower than the lower end face of the inner lower edge 32. This allows the upper reinforcing edge 23 to be positioned inside the lower extension edge 31 during installation, and then pushes the reinforcing sleeve 20 upwards. This causes the upper reinforcing edge 23 to move upwards along the inner side of the lower extension edge 31 and enter the upper insertion groove 34. During installation, the inner side of the lower extension edge 31 effectively acts as a guide rail, precisely guiding the upper reinforcing edge 23 along a predetermined path into the upper insertion groove 34, ensuring the accuracy and stability of the connection between the outer barrel cover 30 and the reinforcing sleeve 20. The entire installation process can be naturally divided into two clear steps: first, positioning it inside the lower extension edge 31, and then pushing the reinforcing sleeve 20 upward so that the upper reinforcing edge 23 enters the upper insertion groove 34. The step-by-step installation method with a guided path can significantly reduce the accumulation of installation errors. Each step can correct any possible deviations in a timely manner, keeping the installation errors within a minimum range and ensuring the structural integrity and performance reliability of the entire outer barrel assembly after installation.

[0049] In some embodiments of this application, the reinforcing sleeve 20 further has a reinforcing protrusion 22 connecting the upper reinforcing edge 23 and the lower reinforcing edge 21. The barrel body 11 and the lower extension edge 31 are spaced apart, and the reinforcing protrusion 22 is located between the barrel body 11 and the lower extension edge 31. The reinforcing protrusion 22 connects the upper reinforcing edge 23 and the lower reinforcing edge 21, effectively connecting the upper reinforcing edge 23 and the lower reinforcing edge 21, making the structure of the reinforcing sleeve 20 more robust. It is as if a "reinforcing beam" is set on the reinforcing sleeve 20, enhancing the ability of the entire reinforcing sleeve 20 to resist external deformation, thereby further improving the overall structural strength of the outer barrel assembly 100. The barrel body 11 and the lower extension edge 31 are spaced apart, while the reinforcing protrusion 22 is located between them, making full use of the gap space between the barrel body 11 and the lower extension edge 31; it does not occupy too much external space, nor does it affect the structural layout of the barrel body 11 and the outer barrel cover 30 itself, so that the outer barrel assembly can maintain a relatively compact shape design while ensuring the improvement of structural strength.

[0050] In some embodiments of this application, the outward extension dimension of the reinforcing protrusion 22 is smaller than the thickness of the lower extension edge 31, and the lower end of the lower extension edge 31 abuts against the reinforcing protrusion 22. The abutment between the lower extension edge 31 and the reinforcing protrusion 22 ensures that the outer barrel cover 30 maintains a relatively stable position in the vertical direction, preventing excessive vertical displacement, thereby maintaining the stability of the connection between the outer barrel cover 30 and the reinforcing sleeve 20, further ensuring the structural integrity of the entire outer barrel assembly 100; and the outer barrel cover 30 provides precise positioning and support relative to the reinforcing sleeve 20. The outward extension dimension of the reinforcing protrusion 22 is smaller than the thickness of the lower extension edge 31, and the lower end of the lower extension edge 31 abuts against the reinforcing protrusion 22, making the contact between the lower extension edge 31 and the reinforcing protrusion 22 relatively gentle, preventing component damage due to size mismatch or excessive compression.

[0051] In some embodiments of this application, the reinforcing protrusion 22 has an upper reinforcing bend 222 extending outward and downward along the lower end of the upper reinforcing edge 23, and a lower reinforcing bend 221 extending outward and upward along the upper end of the lower reinforcing edge 21. The upper reinforcing bend 222 and the lower reinforcing bend 221 are connected. The upper reinforcing bend 222 and the lower reinforcing bend 221 reinforce the key parts of the reinforcing sleeve 20 from different directions, which helps to ensure the roundness of the reinforcing sleeve 20 and increase the structural strength of the reinforcing sleeve 20.

[0052] In some embodiments of this application, the outer tub 10 further includes a retaining ring 13 fixed inside the tub body 11, forming a lower insertion groove 14 between the retaining ring 13 and the tub body 11, into which the lower reinforcing edge 21 is inserted. The insertion of the lower reinforcing edge 21 into the lower insertion groove 14 creates a tight insertion fit, effectively limiting the displacement of the lower reinforcing edge 21 in both the horizontal and vertical directions, thus making the connection between the lower reinforcing edge 21 and the tub body 11 more stable. The lower insertion groove 14 provides a clear installation position for the lower reinforcing edge 21, allowing it to be accurately inserted into a predetermined position during assembly with the tub body 11.

[0053] In some embodiments of this application, the upper end face of the retaining ring 13 is lower than the upper end face of the barrel 11, so that when the lower reinforcing edge 21 is inserted into the lower insertion groove 14, the upper part of the barrel 11 can act as a "guide wall"; the reinforcing edge 21 can slide downward along the inner side wall of the barrel 11 and be inserted into the lower insertion groove 14. The height difference allows the installer to easily align the lower reinforcing edge 21 with the space formed by the upper opening of the barrel 11 and the retaining ring 13 before further insertion, which helps ensure the fitting accuracy between the lower reinforcing edge 21 and the lower insertion groove 14.

[0054] In some embodiments of this application, the reinforcing sleeve 20 is made of sheet metal, while the outer barrel 10 and the outer barrel cover 30 are made of plastic materials such as PP or PP-TD20. The elastic modulus of the sheet metal is significantly improved, giving the reinforcing sleeve 20 higher rigidity and enabling it to better resist deformation under external forces. Due to the strength and rigidity advantages of the sheet metal, the reinforcing sleeve 20 can effectively limit the deformation of the upper part of the outer barrel. Furthermore, the density of the sheet metal is greater than that of plastic, making the reinforcing sleeve 20 equivalent to a ring-shaped counterweight, positioned at the top of the outer barrel 10 to provide balance.

[0055] In some embodiments of this application, a locking structure is provided between the outer lid 30 and the outer barrel 10. A protruding locking protrusion 15 is provided on the barrel body 11, and a buckle 35 located outside the lower extension edge 31 is provided on the outer lid 30. The buckle 35 has a downwardly extending groove 351 that matches the locking protrusion 35. During the assembly of the outer barrel assembly 100, the lower reinforcing edge 21 of the reinforcing sleeve 20 is inserted into the lower insertion groove 14, and the upper end is inserted into the upper insertion groove 34. Then, the groove 351 of the buckle 35 is aligned with the locking protrusion 15 on the barrel body 11, and the buckle 35 is pressed inward, allowing the locking protrusion 15 to smoothly engage in the groove 351, completing the assembly. The locking operation is simple and easy, greatly improving assembly efficiency.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. An outer tub assembly for a washing machine, characterized in that, include: The outer barrel has a barrel body and a barrel bottom located at the lower end of the barrel body; The outer barrel lid has a lower extension edge located above the barrel body and an inwardly extending lid edge; A reinforcing sleeve is provided between the barrel body and the outer barrel cover; The reinforcing sleeve has a lower reinforcing edge that matches the upper end of the barrel body and an upper reinforcing edge that matches the lower extension edge, with the lower reinforcing edge located inside the barrel body.

2. The outer barrel assembly according to claim 1, characterized in that, The upper reinforcing edge is supported on the inner side of the lower reinforcing edge. The lower reinforcing edge and the upper reinforcing edge are coaxially arranged annular structures, and the radial dimensions of the lower reinforcing edge and the upper reinforcing edge are the same.

3. The outer barrel assembly according to claim 1, characterized in that, The outer barrel cover also has an inner lower edge spaced apart inside the lower extension edge, and an upper insertion groove for receiving the upper reinforcing edge is formed between the lower extension edge and the inner lower edge.

4. The outer barrel assembly according to claim 3, characterized in that, The lower end face of the lower extension edge is lower than the lower end face of the inner lower edge.

5. The outer barrel assembly according to any one of claims 1 to 4, characterized in that, The reinforcing sleeve also has a reinforcing protrusion connecting the upper reinforcing edge and the lower reinforcing edge, the barrel body and the lower extension edge are spaced apart, and the reinforcing protrusion is located between the barrel body and the lower extension edge.

6. The outer barrel assembly according to claim 5, characterized in that, The reinforcing protrusion extends outward in a dimension smaller than the thickness of the lower extension edge, and the lower end of the lower extension edge abuts against the reinforcing protrusion.

7. The outer barrel assembly according to claim 5, characterized in that, The reinforcing protrusion has an upper reinforcing bend extending outward and downward along the lower end of the upper reinforcing edge, and a lower reinforcing bend extending outward and upward along the upper end of the lower reinforcing edge, wherein the upper reinforcing bend and the lower reinforcing bend are connected.

8. The outer barrel assembly according to any one of claims 1 to 4, characterized in that, The outer barrel also has a fixing ring fixed inside the barrel body, and a lower insertion groove is formed between the fixing ring and the barrel body, and the lower reinforcing edge is inserted into the lower insertion groove.

9. The outer barrel assembly according to claim 8, characterized in that, The upper end face of the fixing ring is lower than the upper end face of the barrel body; the reinforcing sleeve is made of sheet metal.

10. A washing device, characterized in that, It has an outer barrel assembly as described in any one of claims 1 to 9.

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