Inner cylinder fixing structure and washing and drying all-in-one machine

Abstract

The utility model discloses an inner cylinder fixing structure and a washing and drying all-in-one machine, and the inner cylinder fixing structure comprises a main shaft which comprises a connecting flat head, and the outer side wall of the connecting flat head is provided with a first pin hole; the bottom of the inner cylinder is sleeved on the connecting flat head; the limiting ring is arranged on the inner bottom side of the inner cylinder, and a second pin hole corresponding to the first pin hole is formed in the inner side wall of the limiting ring; the magnetic ring is detachably mounted on the limiting ring; the magnetic core is arranged in the center of the connecting flat head; the sliding pin is mounted in the first pin hole in a sliding manner; when the magnetic ring is installed, the magnetic ring attracts the sliding pin outwards in the radial direction, the sliding pin is located in the first pin hole and the second pin hole, and the limiting ring is fixed to the connecting flat head so that the inner cylinder can be fixed to the connecting flat head. When the magnetic ring is disassembled, the magnetic core adsorbs the sliding pin inwards in the radial direction, the sliding pin is separated from the second pin hole, and the limiting ring can be separated out relative to the connecting flat head so that the inner cylinder can be disassembled. Based on the scheme, the inner cylinder can be detached without any special tool, and the detaching threshold is greatly lowered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing and drying integrated machines, and particularly to an inner drum fixing structure and a washing and drying integrated machine. BACKGROUND

[0002] In the structure of contemporary washing machines or washing and drying integrated machines, the detachable installation mode of the inner drum has become a common design paradigm, and its core appeal lies in realizing the convenient cleaning function of the inner drum to improve the user's use experience and maintenance efficiency. However, the existing inner drum fixing technology mainly relies on the bolt fixing mechanism. Although the bolt fixing relies on its reliable connection performance, it meets the stability requirements of the inner drum installation to a certain extent, but it exposes significant limitations in the disassembly link. Since the operation process must rely on special tools to complete the disassembly of the bolt, it causes ordinary users to face a high operation threshold, which greatly limits the autonomy and convenience of the inner drum cleaning. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the present application is to provide an inner drum fixing structure and a washing and drying integrated machine, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above purpose, the application adopts the following technical scheme:

[0005] On the one hand, an inner drum fixing structure is provided, comprising:

[0006] A main shaft comprising a connecting flat head, wherein an outer side wall of the connecting flat head is provided with a first pin hole;

[0007] An inner drum, the bottom of which is sleeved on the connecting flat head;

[0008] A limiting ring, which is arranged on the inner bottom side of the inner drum, wherein an inner side wall of the limiting ring is provided with a second pin hole corresponding to the first pin hole;

[0009] A magnetic ring, which is detachably installed on the limiting ring;

[0010] A magnetic core, which is arranged at the center of the connecting flat head;

[0011] A sliding pin, which is slidably installed in the first pin hole; when the magnetic ring is installed, the magnetic ring radially outwardly adsorbs the sliding pin, the sliding pin is between the first pin hole and the second pin hole, the limiting ring is fixed on the connecting flat head to fix the inner drum on the connecting flat head; when the magnetic ring is disassembled, the magnetic core radially inwardly adsorbs the sliding pin, the sliding pin is separated from the second pin hole, and the limiting ring can be separated from the connecting flat head to realize the disassembly of the inner drum.

[0012] Optionally, the bottom frame is provided with a connecting hole corresponding to the connecting head, the bottom frame is sleeved on the connecting head through the connecting hole to limit relative rotation between the bottom frame and the connecting head, and the bottom of the inner cylinder is fixedly connected with the bottom frame.

[0013] Optionally, the bottom frame comprises a central connecting disc and a plurality of support spokes connected around the periphery of the central connecting disc, and the connecting hole is arranged at the central position of the central connecting disc, and the inner cylinder is fixedly connected with the support spokes.

[0014] Optionally, the support spokes are locked by being connected with the inner cylinder through bolts.

[0015] Optionally, the side wall of the connecting head is provided with a plurality of first pin holes in the circumference, and one sliding pin is arranged in each first pin hole.

[0016] Optionally, the limiting ring is provided with a mounting ring groove on the side away from the inner cylinder, and the magnetic ring is detachably mounted in the mounting ring groove.

[0017] Optionally, a cover is further included, the cover is fixedly connected with the magnetic ring, and the magnetic ring can be detachably mounted through the cover.

[0018] Optionally, the outer wall of the limiting ring is provided with external threads, the cover is correspondingly provided with internal threads, and the cover is threadedly connected with the limiting ring.

[0019] Optionally, the outer periphery of the cover is provided with a finger groove, and the finger groove allows a finger to be inserted to twist the cover.

[0020] In another aspect, a washing and drying integrated machine is provided, comprising the above-mentioned inner cylinder fixing structure.

[0021] The inner cylinder fixing structure has the advantages that: through the adsorption of the magnetic ring and the magnetic core on the sliding pin, the inner cylinder can be quickly disassembled, specifically, after the user removes the magnetic ring, the magnetic core automatically adsorbs the sliding pin, the sliding pin is separated from the second pin hole of the limiting ring, the user can easily take out the limiting ring and the inner cylinder, the whole disassembly process is simple and fast, and the time and effort of the user are saved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be described in further detail below with reference to the drawings and embodiments.

[0023] Figure 1 FIG. 1 is a perspective view of an inner cylinder fixing structure according to an embodiment of the application;

[0024] Figure 2 This is a schematic diagram from another perspective of the inner cylinder fixing structure described in an embodiment of this application;

[0025] Figure 3 This is an exploded view of the inner cylinder fixing structure described in the embodiments of this application;

[0026] Figure 4 This is an axial sectional view of the inner cylinder fixing structure described in the embodiment of this application;

[0027] Figure 5 for Figure 4 Enlarged view of region A in the middle;

[0028] Figure 6 This is a schematic diagram of the inner cylinder fixing structure after the inner cylinder is hidden, as described in the embodiment of this application;

[0029] Figure 7 for Figure 6 An exploded view of the structure shown.

[0030] Figure 8 This is a schematic diagram showing the state of the sliding pin sliding out relative to the first pin hole according to an embodiment of this application;

[0031] Figure 9 This is a schematic diagram showing the state in which the sliding pin is completely located within the first pin hole, as described in the embodiments of this application.

[0032] Figure 10 This is a schematic diagram of the structure of the limiting ring and the sliding pin as described in the embodiment of this application;

[0033] Figure 11 for Figure 10 An exploded view of the structure shown.

[0034] In the picture:

[0035] 1. Main shaft; 11. Connecting flat head; 111. First pin hole; 2. Inner cylinder; 3. Cylinder base; 31. Central connecting plate; 32. Support spokes; 4. Sliding pin; 5. Limiting ring; 51. Second pin hole; 52. Mounting ring groove; 6. Magnetic ring; 7. Magnetic core; 8. Cover. Detailed Implementation

[0036] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this application, unless otherwise expressly 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 being 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 being 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.

[0039] In modern washing machines and washer-dryer combos, a detachable inner drum has become a common design paradigm. The core objective is to facilitate convenient drum cleaning, thereby improving user experience and maintenance efficiency. However, existing drum fixing technologies primarily rely on bolt fixing mechanisms. While bolt fixing, with its reliable connection performance, meets the stability requirements of drum installation to a certain extent, it reveals significant limitations in disassembly. Because this operation requires specialized tools to remove the bolts, it presents a high operational barrier for ordinary users, greatly restricting the autonomy and convenience of drum cleaning.

[0040] To overcome the above technical problems, such as Figures 1-11 As shown, this embodiment provides an inner cylinder fixing structure, including:

[0041] The main shaft 1 includes a connecting flat head 11, and the outer side wall of the connecting flat head 11 is provided with a first pin hole 111;

[0042] The inner cylinder 2 is fitted onto the connecting flat head 11 at its bottom;

[0043] A limiting ring 5 is provided on the inner bottom side of the inner cylinder 2, and the inner side wall of the limiting ring 5 is provided with a second pin hole 51 corresponding to the first pin hole 111.

[0044] The magnetic ring 6 is detachably mounted on the limiting ring 5;

[0045] The magnetic core 7 is located at the center of the connecting flat head 11;

[0046] The sliding pin 4 is slidably installed in the first pin hole 111. When the magnetic ring 6 is installed, the magnetic ring 6 radially attracts the sliding pin 4. The sliding pin 4 is located between the first pin hole 111 and the second pin hole 51. The limiting ring 5 is fixed to the connecting flat head 11 to fix the inner cylinder 2 to the connecting flat head 11. When the magnetic ring 6 is disassembled, the magnetic core 7 radially attracts the sliding pin 4. The sliding pin 4 separates from the second pin hole 51. The limiting ring 5 can be separated from the connecting flat head 11 to remove the inner cylinder 2.

[0047] When applied to washing machines or washer-dryer combos, the end of the main shaft 1 away from the connecting flat head 11 is connected to a motor, so that the motor can drive the inner drum 2 to rotate through the main shaft 1.

[0048] Since the connecting flat head 11 is a non-rotating structure, after the inner cylinder 2 and the limiting ring 5 are fitted onto the connecting flat head 11, the inner cylinder 2 and the limiting ring 5 cannot rotate relative to the connecting flat head 11. That is, the degree of freedom of the inner cylinder 2 to rotate relative to the main shaft 1 is restricted. Therefore, during installation, the limiting ring 5 only needs to be able to restrict the degree of freedom of the inner cylinder 2 to move axially relative to the main shaft 1.

[0049] During installation, the limiting ring 5 is engaged with both the sliding pin 4 and the connecting flat head 11 simultaneously. Specifically, the magnetic force of the magnetic ring 6 is greater than that of the magnetic core 7, ensuring that after installation, the magnetic ring 6 overcomes the magnetic force of the magnetic core 7 to pull the sliding pin 4 radially outward. Furthermore, after removing the magnetic ring 6, the magnetic force provided by the magnetic core 7 must be sufficient to pull the sliding pin 4 radially inward, causing it to disengage from the second pin hole 51.

[0050] In specific operation, when the user needs to clean the inner cylinder 2, they only need to manually remove the magnetic ring 6 from the limiting ring 5, which will allow the magnetic core 7 to radially inward attract the sliding pin 4. After the sliding pin 4 disengages from the second pin hole 51 of the limiting ring 5, the user can easily remove the limiting ring 5 and then remove the inner cylinder 2. During installation, first install the inner cylinder 2 on the connecting flat head 11 of the main shaft 1, then install the limiting ring 5 so that the second pin hole 51 is aligned with the first pin hole 111. After that, install the magnetic ring 6, which will allow the sliding pin 4 to be radially pulled outward, so that the sliding pin 4 is stuck between the first pin hole 111 and the second pin hole 51, thereby fixing the limiting ring 5. The inner cylinder 2 can be fixed by the limiting ring 5.

[0051] In summary, in this embodiment, the magnetic ring 6 and magnetic core 7 attract the sliding pin 4, enabling rapid disassembly of the inner cylinder 2. Specifically, after the user removes the magnetic ring 6, the magnetic core 7 automatically attracts the sliding pin 4, causing the sliding pin 4 to disengage from the second pin hole 51 of the limiting ring 5. The user can then easily remove the limiting ring 5 and the inner cylinder 2. The entire disassembly process is simple and quick, saving the user's time and effort. Therefore, based on this embodiment, the inner cylinder 2 can be disassembled without the need for any special tools, greatly lowering the disassembly threshold and allowing ordinary users to easily complete the cleaning operation of the inner cylinder 2.

[0052] In one embodiment, reference is made to Figures 1-4 It also includes a bottom frame 3, the bottom frame 3 having a connecting hole at its center corresponding to the connecting flat head 11, the bottom frame 3 being sleeved onto the connecting flat head 11 through the connecting hole to restrict the relative rotation of the bottom frame 3 and the connecting flat head 11; the bottom of the inner cylinder 2 is fixedly connected to the bottom frame 3.

[0053] Generally, the inner cylinder 2 is made of thin metal sheet, which has weak resistance to deformation. The cylinder base frame 3 is a thicker injection-molded part that supports the bottom of the inner cylinder 2, ensuring the stability of the entire inner cylinder 2 structure. Since the inner cylinder 2 and the cylinder base frame 3 are fixedly connected, the cylinder base frame 3 is disassembled and assembled together with the inner cylinder 2.

[0054] The bottom frame 3 has a connecting hole at its center corresponding to the connecting flat head 11. The bottom frame 3 is fitted onto the connecting flat head 11 through this connecting hole, restricting the relative rotation between the bottom frame 3 and the connecting flat head 11. Since the bottom of the inner drum 2 is fixedly connected to the bottom frame 3, the relative rotation between the inner drum 2 and the connecting flat head 11 (i.e., the main shaft 1) is also indirectly restricted, further ensuring the stability of the inner drum 2 during rotation. This allows the inner drum 2 to accurately follow the rotation of the main shaft 1, improving the washing or drying effect.

[0055] In one embodiment, the tube base frame 3 includes a central connecting plate 31 and multiple supporting spokes 32 connected around the periphery of the central connecting plate 31. The connecting hole is located at the center of the central connecting plate 31, and the inner tube 2 is connected and fixed to the supporting spokes 32.

[0056] The central connecting plate 31 and multiple supporting spokes 32 together form the skeleton structure of the tube base frame 3. The central connecting plate 31 is located in the center and is connected to the connecting flat head 11 through the connecting hole, playing a positioning and main support role. The multiple supporting spokes 32 are distributed around the central connecting plate 31 and are connected and fixed to the inner tube 2. This structural form can effectively enhance the overall rigidity of the tube base frame 3, enabling it to better withstand various forces transmitted from the entire inner tube 2, such as the weight of the clothes and the impact of water flow, thereby further improving the stability of the inner tube 2 structure and reducing the deformation and shaking of the inner tube 2 during operation.

[0057] In one embodiment, the support spokes 32 are locked to the inner cylinder 2 by bolts.

[0058] Bolted connections provide greater connection strength and can withstand greater tensile and shear forces. After the support spokes 32 are connected to the inner cylinder 2 by bolts, the force borne by the inner cylinder 2 can be evenly transferred to the cylinder base frame 3, which enhances the load-bearing capacity of the entire inner cylinder 2 structure. This helps to prevent the inner cylinder 2 from being damaged due to excessive force during long-term use and extends the service life of the inner cylinder 2.

[0059] In one embodiment, the sidewall circumference of the connecting flat head 11 is provided with a plurality of first pin holes 111, and a sliding pin 4 is installed in each of the first pin holes 111.

[0060] Multiple first pin holes 111 are provided on the circumference of the side wall of the connecting flat head 11 and a sliding pin 4 is installed, so that multiple fixing points are formed between the limiting ring 5 and the connecting flat head 11. Compared with a single fixing point, multi-point fixing can more evenly distribute the force borne by the limiting ring 5, which greatly improves the reliability of fixing the inner drum 2, reduces the possibility of the inner drum 2 shaking or displacing due to uneven force during operation, and ensures the stability of the washing machine or washer-dryer combo.

[0061] In one embodiment, combined with Figure 5 and Figure 11 The limiting ring 5 is provided with an installation ring groove 52 on the side away from the inner cylinder 2, and the magnetic ring 6 is detachably installed in the installation ring groove 52.

[0062] The mounting groove 52 provides a clear mounting position for the magnetic ring 6, enabling the magnetic ring 6 to be positioned quickly and accurately during installation. During installation, the user only needs to place the magnetic ring 6 into the mounting groove 52 to ensure that the relative position of the magnetic ring 6 and the limit ring 5 is correct, avoiding the problem of magnetic ring 6 malfunction due to inaccurate installation position, and improving installation efficiency and quality.

[0063] Importantly, the installation groove allows the magnetic ring 6 to be embedded in the limiting ring 5, so that the installed magnetic ring 6 can be aligned with the outer end of the second pin hole 51, thereby enhancing the magnetic attraction effect of the magnetic ring 6 on the sliding pin 4. This allows the magnetic ring 6 to more effectively attract the sliding pin 4 radially outward, ensuring that the sliding pin 4 can be smoothly inserted into the second pin hole 51 when the inner cylinder 2 is installed, thus achieving reliable fixation of the inner cylinder 2.

[0064] In one embodiment, a cover 8 is also included, which is fixedly connected to the magnetic ring 6, and the magnetic ring 6 can be installed or removed through the cover 8.

[0065] Specifically, the cover 8 and the magnetic ring 6 are fixedly connected. For example, the cover 8 can be formed on the magnetic ring 6 using a secondary injection molding process, or the two can be glued together after the cover 8 is formed. During operation, the user can manually operate the cover 8 to install or remove the magnetic ring 6.

[0066] The design of the cover 8 provides a convenient operating interface for the installation and removal of the magnetic ring 6. Specifically, when removing the magnetic ring 6, simply remove the cover 8 to take it out. This design avoids the inconvenience that may be caused by directly operating the magnetic ring 6, simplifies the installation and removal process, and improves operating efficiency.

[0067] In addition, the cover 8 can provide some protection for the magnetic ring 6, preventing it from being damaged by external forces such as collisions and scratches during the washing process.

[0068] In one embodiment, the outer wall of the limiting ring 5 is provided with external threads, and the buckle 8 is provided with corresponding internal threads, and the buckle 8 is threadedly connected to the limiting ring 5.

[0069] Threaded connection is a common and mature connection method. Operators can easily install and remove the cover 8 and the retaining ring 5 by simply rotating the cover 8. This operation is simple and easy to understand, requiring no complicated tools or professional skills; even ordinary users can easily complete the task. Furthermore, the threaded connection ensures a tight fit between the cover 8 and the retaining ring 5, effectively preventing dust, moisture, and other debris from entering the mounting groove 52, protecting the magnetic ring 6 from external environmental influences. This is crucial for maintaining the stable performance of the magnetic ring 6 and extending its service life. If necessary, waterproof rings can be installed at appropriate locations to enhance waterproofing.

[0070] In one embodiment, a finger groove is provided on the outer periphery of the cover 8, the finger groove allowing a finger to be inserted to twist the cover 8.

[0071] The finger groove design provides operators with a clear point of leverage and operating space. When installing or removing the cover 8, operators can easily place their fingers into the finger groove for a better grip. This makes twisting the cover 8 more natural and smooth, reducing slippage and errors during operation, and improving accuracy and efficiency. Especially for those with less hand strength or less experience, directly twisting the smooth cover 8 might be difficult. The finger groove increases the friction between the fingers and the cover 8, reducing the force required to twist it, making operation easier. Even children or the elderly can easily install and remove the cover 8.

[0072] On the other hand, a washer-dryer combo is provided, including the aforementioned inner drum fixing structure.

[0073] Based on the inner drum fixing structure provided in this embodiment, similarly, in the washer-dryer combo of this embodiment, the user can easily and manually complete the disassembly and assembly of the inner drum 2 to complete the cleaning operation without the aid of special tools.

[0074] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0075] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0076] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0077] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. An inner cylinder fixing structure, characterized in that, include: The main shaft (1) includes a connecting flat head (11), and the outer side wall of the connecting flat head (11) is provided with a first pin hole (111); The inner cylinder (2) is fitted at the bottom onto the connecting flat head (11); A limiting ring (5) is provided on the inner bottom side of the inner cylinder (2), and the inner side wall of the limiting ring (5) is provided with a second pin hole (51) corresponding to the first pin hole (111). A magnetic ring (6) is detachably mounted on the limiting ring (5); A magnetic core (7) is disposed at the center of the connecting flat head (11); The sliding pin (4) is slidably installed in the first pin hole (111); when the magnetic ring (6) is installed, the magnetic ring (6) radially outward attracts the sliding pin (4), the sliding pin (4) is located in the first pin hole (111) and the second pin hole (51), and the limiting ring (5) is fixed on the connecting flat head (11) to fix the inner cylinder (2) on the connecting flat head (11); when the magnetic ring (6) is disassembled, the magnetic core (7) radially inward attracts the sliding pin (4), the sliding pin (4) separates from the second pin hole (51), and the limiting ring (5) can be separated from the connecting flat head (11) to realize the removal of the inner cylinder (2).

2. The inner cylinder fixing structure according to claim 1, characterized in that, It also includes a tube base frame (3), the tube base frame (3) has a connecting hole at the center corresponding to the connecting flat head (11), the tube base frame (3) is sleeved on the connecting flat head (11) through the connecting hole to restrict the relative rotation of the tube base frame (3) and the connecting flat head (11); the bottom of the inner tube (2) is fixedly connected to the tube base frame (3).

3. The inner cylinder fixing structure according to claim 2, characterized in that, The tube base frame (3) includes a central connecting plate (31) and multiple support spokes (32) connected around the periphery of the central connecting plate (31). The connecting hole is located at the center of the central connecting plate (31), and the inner tube (2) is connected and fixed to the support spokes (32).

4. The inner cylinder fixing structure according to claim 3, characterized in that, The support spokes (32) are locked to the inner cylinder (2) by bolts.

5. The inner cylinder fixing structure according to claim 1, characterized in that, The side wall circumference of the connecting flat head (11) is provided with a plurality of first pin holes (111), and a sliding pin (4) is installed in each first pin hole (111).

6. The inner cylinder fixing structure according to claim 1, characterized in that, The limiting ring (5) has an installation groove (52) on the side away from the inner cylinder (2), and the magnetic ring (6) can be detachably installed in the installation groove (52).

7. The inner cylinder fixing structure according to claim 1, characterized in that, It also includes a cover (8), which is fixedly connected to the magnetic ring (6), and the magnetic ring (6) can be installed or removed through the cover (8).

8. The inner cylinder fixing structure according to claim 7, characterized in that, The outer wall of the limiting ring (5) is provided with an external thread, and the buckle (8) is provided with an internal thread. The buckle (8) is threadedly connected to the limiting ring (5).

9. The inner cylinder fixing structure according to claim 8, characterized in that, The outer periphery of the cover (8) is provided with a finger groove, which allows a finger to be inserted to twist the cover (8).

10. A washer-dryer combo, characterized in that, Includes the inner cylinder fixing structure as described in any one of claims 1-9.

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