Multi-drum washing machine
By installing the washing components of a multi-drum washing machine inside a standard-height cabinet, and utilizing a buffer component, the installation and vibration issues of the multi-drum washing machine are solved, achieving convenient installation and stable operation.
Patent Information
- Application Number
- CN202511719387.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-02-06
AI Technical Summary
In the current technology, single-drum washing machines cannot achieve separate washing, and multi-drum washing machines require changes to the installation cabinet due to non-standard height. Furthermore, multi-drum washing machines are prone to vibration and noise during spin-drying due to eccentricity.
Design a multi-drum washing machine that uses a standard-height cabinet to house the washing components, including a fixed outer drum, a first drum, and a second drum, which are connected by buffer components such as suspension springs and shock absorbers to reduce vibration and noise.
It enables convenient installation in a standard installation cabinet, reduces vibration and noise of multi-drum washing machines, and improves equipment stability and user experience.
Smart Images

Figure CN121473098A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of washing machines, in particular to a multi-cylinder washing machine. BACKGROUND
[0002] With the progress of science and technology, washing machines have become an indispensable device in family life. Most of the current standard height washing machines are single-cylinder washing machines, which cannot realize the function of classified cleaning.
[0003] The multi-cylinder washing machine is not a standard height problem, and the user needs to change the washing machine installation cabinet to use it, which is relatively inconvenient. SUMMARY
[0004] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a multi-cylinder washing machine, which aims to solve the problem that the existing technology cannot realize partition cleaning in a standard height washing machine.
[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a multi-cylinder washing machine, comprising: a box body, the box body is a standard height; a washing assembly, the washing assembly is arranged in the box body, the washing assembly comprises a fixed outer cylinder, a first cylinder and a second cylinder, the fixed outer cylinder is integrally formed, the fixed outer cylinder is arranged in the box body, and the first cylinder and the second cylinder are arranged on the fixed outer cylinder.
[0006] Further, the fixed outer cylinder is provided with at least three mounting grooves, the number of the second cylinders is at least two, and the first cylinder and the second cylinder are arranged in the mounting grooves respectively.
[0007] Further, the diameter of the first cylinder is greater than the diameter of the second cylinder.
[0008] Further, the second cylinders are respectively located at the left upper position and the right upper position of the first cylinder.
[0009] Further, the multi-cylinder washing machine further comprises a buffer assembly, the buffer assembly is arranged in the box body, and the washing assembly is connected with the box body through the buffer assembly.
[0010] Further, the buffer assembly comprises a suspension spring and a shock absorber, the suspension spring is arranged above the washing assembly, and the shock absorber is arranged below the washing assembly.
[0011] Further, the number of the suspension springs is two, the two suspension springs are oppositely arranged on the two sides of the washing assembly, and the two ends of the suspension springs are connected with the fixed outer cylinder and the box body respectively.
[0012] Furthermore, one end of the shock absorber is disposed on the fixed outer cylinder and / or the first cylinder, and the other end is connected to the housing.
[0013] Furthermore, the openings of the first and second cylinders face the front side of the box body, and the axes of the first and second cylinders are parallel to a second direction, which is the thickness direction of the box body.
[0014] Compared with existing technologies, this application, by setting a standard-height cabinet and housing the washing components within it, allows users to more conveniently install multi-drum washing machines in traditional washing machine cabinets. The washing components include a fixed outer drum, a first drum, and a second drum. The fixed outer drum is housed within the cabinet, and both the first and second drums are integrally formed on the fixed outer drum. This results in a simple product structure, convenient assembly, and effectively reduced production costs. Furthermore, it prevents the rotation of the first and second drums from being directly transmitted to the cabinet, mitigating equipment vibration caused by the rotation of the first and second drums. Attached Figure Description
[0015] Figure 1 This is a perspective view of a multi-drum washing machine according to an embodiment of this application; Figure 2 This is a front view of a multi-drum washing machine according to an embodiment of this application; Figure 3 This is a perspective view of the washing component in the embodiments of this application; Figure 4 This is a perspective view of the washing component in the embodiments of this application; Figure 5 This is a three-dimensional schematic diagram of the fixed outer cylinder in an embodiment of this application.
[0016] Explanation of reference numerals in the attached figures: 10. Housing; 20. Fixed outer cylinder; 21. Mounting slot; 30. First cylinder; 40. Second cylinder; 50. Suspension spring; 60. Shock absorber. Detailed Implementation
[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0018] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0019] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0020] The standard height washing machine in the current market is a single-cylinder washing machine, which has no function of classifying and washing clothes. In order to wash different types of clothes, users need to use the washing machine for washing several times or wash by hand, which is very inconvenient. If different types of clothes are washed by using the same washing machine, cross infection may occur, which seriously affects the health of users. There are also classifying washing machines on the market, but most of them are double-cylinder washing machines, some of which have upper and lower double cylinders, some of which have upper wave wheels and lower cylinders, and some of which have large lower cylinders and small upper cylinders.
[0021] These double-cylinder washing machines can only realize the washing or washing and drying operation of two types of clothes at the same time. For families with more than three people, especially for families with infants and children, it is still not possible to meet the demand of washing all clothes at the same time. Three-cylinder washing machines have the problem of non-standard height, and users who need to replace three-cylinder washing machines also need to change the washing machine installation cabinet, which is relatively inconvenient.
[0022] In addition, when the washing machine is dehydrated, the clothes will adhere to the inner cylinder wall due to centrifugal force. However, if the clothes are not evenly distributed, the center of gravity of the cylinder will deviate from its rotation center, i.e. eccentricity. Eccentricity will cause great shaking and vibration, resulting in machine vibration and loud noise. Since the number of washing cylinders of multi-cylinder washing machines is larger, the anti-eccentricity performance of the washing machine is required to be higher.
[0023] In this regard, such as Figure 1 As shown, this application proposes a multi-drum washing machine, including a housing 10 and a washing assembly. Along a first direction, the size of the housing 10 is L1, where 800mm ≤ L1 ≤ 900mm, and the first direction is the height direction of the housing 10. The height of 800mm to 900mm is the height of a single-drum washing machine in the related art, i.e., the standard height in relevant regulations. The standard height of the housing 10 allows the multi-drum washing machine of this embodiment to be easily installed in various pre-reserved washing machine installation cabinets under existing standards, without requiring users to incur additional modification costs. In this embodiment, the height of the housing 10 can be 850mm.
[0024] Specifically, the housing 10 can be composed of a front panel, side panels, bottom panel, top panel, and frame. The housing 10 can accommodate the washing drum and fix the components.
[0025] like Figure 2 and Figure 3 As shown, the washing assembly is disposed within the housing 10. The washing assembly includes a fixed outer drum 20, a first drum 30, and a second drum 40. The fixed outer drum 20 is disposed within the housing 10, and both the first drum 30 and the second drum 40 are disposed on the fixed outer drum 20. By installing the first drum 30 and the second drum 40 within the fixed outer drum 20, the washing assembly is formed as a whole. This facilitates equipment assembly, and the overall structure effectively counteracts the eccentric vibrations generated when the first drum 30 and the second drum 40 rotate, reducing the noise generated by the first drum 30 and the second drum 40 during equipment operation and preventing them from colliding with the housing 10.
[0026] The first drum 30 and the second drum 40 are devices that can rotate, wash and spin-dry the clothes inside them. The first drum 30 and the second drum 40 can operate separately or simultaneously.
[0027] For example, such as Figure 5 As shown, the fixed outer drum 20 is provided with at least three mounting slots 21, and the number of second drums 40 is at least two. The first drum 30 and the second drum 40 are respectively disposed in the mounting slots 21. By setting at least two second drums 40 and one first drum 30, three washing drums are installed in the standard height cabinet 10, thereby meeting user needs. The three-drum washing machine can meet the needs of multi-person households to wash different types of clothes at the same time, making it more convenient to use.
[0028] In some embodiments, the diameter of the first drum 30 is larger than the diameter of the second drum 40. This allows the first drum 30 to have a larger volume, enabling it to wash more clothes compared to the second drum 40. Furthermore, having only one larger first drum 30 effectively reduces vibration during device operation, improving the user experience.
[0029] Those skilled in the art will understand that the diameters of the first cylinder 30 and the second cylinder 40 can be set according to actual needs and the specifications of the box 10.
[0030] In some embodiments, such as Figure 4 As shown, the second drum 40 is located at the upper left and upper right positions of the first drum 30, respectively. By placing the first drum 30, which has a larger volume and greater mass, on the lower side of the housing 10, the overall center of gravity of the equipment is ensured to be at a lower position, effectively enhancing the stability of the equipment and preventing displacement of the multi-drum washing machine due to vibration.
[0031] Specifically, in this embodiment, two second cylinders 40 are provided, both located above the first cylinder 30, and respectively positioned to the left or right of the central axis of the housing 10. By symmetrically arranging the second cylinders 40, the overall center of gravity of the equipment is centered, effectively improving the stability of the equipment.
[0032] Those skilled in the art will understand that the mounting groove 21 corresponding to the first cylinder 30 and the second cylinder 40 is positioned in the same way as the first cylinder 30 and the second cylinder 40.
[0033] In some embodiments, the multi-drum washing machine further includes a buffer assembly disposed within the housing 10, and the washing assembly is connected to the housing 10 via the buffer assembly. By providing the buffer assembly, a rigid connection between the washing assembly and the housing 10 is avoided, allowing the washing assembly to be positioned in the middle of the housing 10 and providing it with a certain amount of displacement space. When the washing assembly is operating, the first drum 30 and the second drum 40 can dissipate some vibration through a small range of displacement, preventing the first drum 30 and the second drum 40 from colliding with the housing 10 and generating noise.
[0034] The buffer component can be an independently installed part or a part pre-installed in the housing 10 to reduce the vibration of the washing unit.
[0035] For example, the buffer assembly includes a suspension spring 50 and a shock absorber 60. The suspension spring 50 is disposed above the washing assembly, and the shock absorber 60 is disposed below the washing assembly. The suspension spring 50 can undergo deformations such as stretching or compression, thereby eliminating the vibration energy of the washing assembly. The shock absorber 60 uses a damping mechanism to convert the vibration energy generated by the high-speed rotation of the drum into heat energy for release, thereby suppressing the shaking of the cabinet 10 and reducing noise.
[0036] Specifically, the number of the suspension springs 50 is two, and the two suspension springs 50 are oppositely arranged on the two sides of the washing assembly. The two ends of the suspension spring 50 are connected with the fixed outer cylinder 20 and the box body 10 respectively. The suspension spring 50 is connected with the hook on the fixed outer cylinder 20 and the metal cross beam on the box body 10, so as to reduce the gravity of the washing assembly acting on the shock absorber 60 and reduce the vibration generated by the washing assembly.
[0037] In some embodiments, one end of the shock absorber 60 is arranged on the fixed outer cylinder 20 and / or the first cylinder 30, and the other end is connected with the box body 10. In this embodiment, the number of the shock absorbers 60 is four. The left side and the right side of the washing assembly are connected with the box body 10 through a pair of shock absorbers 60. The bottom end of the shock absorber 60 is connected with the metal cross beam in the box body 10. Meanwhile, one shock absorber 60 supports the fixed outer cylinder 20, and the other shock absorber 60 supports the installation of the first cylinder 30, so as to provide more stable support for the first cylinder 30 with large mass and reduce the vibration generated by the first cylinder 30 and the second cylinder 40 during operation.
[0038] As can be understood by those skilled in the art, by arranging the suspension spring 50 and the shock absorber 60 on the upper side and the lower side of the washing assembly respectively, the three washing cylinders can be counterbalanced, so as to reduce the eccentric vibration of the equipment. Due to the internal counterbalance, the vibration force transmitted to the suspension spring and the shock absorber has been greatly weakened. On this basis, the suspension spring and the shock absorber can play a more effective role, so that the washing machine can run stably.
[0039] In some embodiments, the fixed outer cylinder 20 is integrally injection molded. The overall strength of the fixed outer cylinder 20 is effectively enhanced, and the vibration of the washing assembly during operation is reduced.
[0040] In this embodiment, the fixed outer cylinder 20 is further provided with a plurality of reinforcing ribs arranged between the two mounting grooves 21, so as to further improve the overall strength of the fixed outer cylinder and improve the stability of the multi-cylinder washing machine.
[0041] In some embodiments, the openings of the first cylinder 30 and the second cylinder 40 are directed to the front side of the box body 10, so that the axis of the first cylinder 30 and the second cylinder 40 is parallel to the second direction, the second direction is the thickness direction of the box body, and the rotation direction of the first cylinder 30 and the second cylinder 40 is around the axis. The multi-cylinder washing machine in the embodiment of the present application is similar to the structure of the related art drum washing machine. By directing the openings of the first cylinder 30 and the second cylinder 40 to the front, the rotation directions of the multiple washing cylinders are ensured to be consistent during operation of the equipment, so as to balance the eccentric vibration between the multiple washing cylinders by the box body 10 and the fixed outer cylinder 20, thereby reducing the overall vibration of the equipment.
[0042] The multi-cylinder washing machine provided by the embodiment of the application is provided with at least three washing cylinders in a standard-height box body, the at least three washing cylinders are installed in the box body, specifically, a washing assembly is arranged in the box body, the washing assembly comprises a fixed outer cylinder, a first cylinder and a second cylinder, the fixed outer cylinder is an integral whole and comprises at least three mounting grooves, the number of the mounting grooves is same as the number of the first cylinder and the second cylinder; the first cylinder and the second cylinder are separate individuals; the first cylinder and the second cylinder are fixed in the mounting grooves of the fixed outer cylinder, one end of a hanging spring and a shock absorber is connected to the fixed outer cylinder, and the other end is connected to the box body.
[0043] The multi-cylinder washing machine provided by the embodiment of the application is provided with at least three washing cylinders in a standard-height box body, the at least three washing cylinders are installed in the box body, specifically, a washing assembly is arranged in the box body, the washing assembly comprises a fixed outer cylinder, a first cylinder and a second cylinder, the fixed outer cylinder is an integral whole and comprises at least three mounting grooves, the number of the mounting grooves is same as the number of the first cylinder and the second cylinder; the first cylinder and the second cylinder are separate individuals; the first cylinder and the second cylinder are fixed in the mounting grooves of the fixed outer cylinder, one end of a hanging spring and a shock absorber is connected to the fixed outer cylinder, and the other end is connected to the box body.
[0044] It should be understood that the application of the application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the application.
Claims
1. A multi-drum washing machine, characterized in that, include: The enclosure is of standard height; A washing assembly is disposed within the housing. The washing assembly includes a fixed outer drum, a first drum, and a second drum. The fixed outer drum is integrally formed and disposed within the housing. Both the first drum and the second drum are disposed on the fixed outer drum.
2. The multi-drum washing machine according to claim 1, characterized in that, The diameter of the first cylinder is larger than the diameter of the second cylinder.
3. The multi-drum washing machine according to claim 1, characterized in that, The two second cylinders are located to the upper left and upper right of the first cylinder, respectively.
4. The multi-drum washing machine according to claim 1, characterized in that, The multi-drum washing machine also includes a buffer assembly, which is disposed inside the drum, and the washing assembly is connected to the drum via the buffer assembly.
5. The multi-drum washing machine according to claim 4, characterized in that, The buffer assembly includes a suspension spring and a shock absorber, with the suspension spring positioned above the washing assembly and the shock absorber positioned below the washing assembly.
6. The multi-drum washing machine according to claim 5, characterized in that, There are two suspension springs, which are arranged opposite each other on both sides of the washing assembly. The two ends of the suspension springs are respectively connected to the fixed outer cylinder and the box body.
7. The multi-drum washing machine according to claim 5, characterized in that, One end of the shock absorber is mounted on the fixed outer cylinder and / or the first cylinder, and the other end is connected to the housing.
8. The multi-drum washing machine according to claim 1, characterized in that, Along the first direction, the dimension of the box is L1, where 800mm≤L1≤900mm, and the first direction is the height direction of the box.
9. The multi-drum washing machine according to claim 1, characterized in that, The fixed outer cylinder is provided with at least three mounting slots, and the number of the second cylinder is at least two. The first cylinder and the second cylinder are respectively disposed in the mounting slots.
10. The multi-drum washing machine according to claim 1, characterized in that, The openings of the first and second cylinders face the front side of the box body, and the axes of the first and second cylinders are parallel to a second direction, which is the thickness direction of the box body.