A drum assembly of a drum washing machine, a drum washing machine

Abstract

The present invention discloses a drum assembly of a drum washing machine and a drum washing machine. The drum assembly includes a first drum and a second drum rotatably disposed on the first drum, wherein: the first drum has a water storage cavity, and one end of the first drum is formed with a first installation port communicating with the water storage cavity; the second drum has a laundry cavity, one end of the second drum is formed with a second installation port communicating with the laundry cavity, and the other end is formed with a clothing access opening communicating with the laundry cavity; wherein the second installation port is rotatably connected to the first installation port, and the laundry cavity is communicated with the water storage cavity. The drum washing machine adopting this drum assembly removes the outer drum, there is no interlayer between the inner and outer drums, so bacteria and dirt will not accumulate, and the clothes will not be secondarily polluted; at the same time, since the inner drum has no holes, the water inlet and drainage system is optimized, and the water consumption is significantly reduced.

Description

Technical Field

[0001] The present invention relates to the field of washing machines, and particularly to a drum assembly of a drum washing machine and a drum washing machine. Background Art

[0002] Most current drum washing machines are composed of an inner drum and an outer drum, and there is a sandwich layer between the inner and outer drums. With long-term use and the fact that it is not easy for ordinary users to clean, scale, lint from clothes, and microorganisms such as bacteria accumulate in the sandwich layer, which not only causes excessive water consumption, but also causes secondary pollution to clothes during the laundry process. In addition, although existing drum washing machines have improvements to the inner and outer drums for water saving and the like, their internal structures are complex, which is not conducive to manufacturing and maintenance. Summary of the Invention

[0003] In view of this, the present invention discloses a drum assembly of a drum washing machine and a drum washing machine, so as to at least solve problems such as water storage between the inner and outer drums of the drum washing machine, large water consumption, and residual substances such as dirt and bacteria causing secondary pollution to clothes.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows:

[0005] The present invention discloses a drum assembly of a drum washing machine in a first aspect. The drum assembly includes a first drum and a second drum rotatably disposed on the first drum, wherein:

[0006] The first drum has a water storage cavity, and a first installation port communicating with the water storage cavity is formed at one end of the first drum;

[0007] The second drum has a laundry cavity, a second installation port communicating with the laundry cavity is formed at one end of the second drum, and a clothes pick-up and put-down port communicating with the laundry cavity is formed at the other end;

[0008] Wherein the second installation port is rotatably connected to the first installation port, and the laundry cavity is communicated with the water storage cavity.

[0009] Further optionally:

[0010] The second installation port is rotatably sleeved on the first installation port.

[0011] Further optionally:

[0012] The drum assembly further includes a bearing,

[0013] Wherein the bearing is sleeved between the first installation port and the second installation port, the inner ring of the bearing is fixed to the first installation port, and the outer ring of the bearing is fixed to the second installation port.

[0014] Further optionally:

[0015] The cylinder assembly further includes a gasket and a fixing plate, wherein

[0016] The gasket is rotatably sleeved outside the first mounting port and on one side of the second mounting port, and is used to cooperate with the inner wall of the second mounting port to fix the outer ring of the bearing to the second mounting port;

[0017] The fixing plate is rotatably disposed inside the second mounting port and on one side of the first mounting port, and is used to cooperate with the outer wall of the first mounting port to fix the inner ring of the bearing to the first mounting port.

[0018] Further optionally:

[0019] The cylinder assembly further includes a sealing ring disposed between the fixing plate and the first mounting port.

[0020] Further optionally:

[0021] The cylinder assembly further includes a hollow baffle for preventing the laundry to be washed from entering the water storage cavity from the laundry chamber,

[0022] wherein the hollow baffle is disposed in the laundry chamber along a direction parallel to the cross-section of the second cylinder and on one side close to the second mounting port.

[0023] Further optionally:

[0024] The cylinder length of the second cylinder is greater than the cylinder length of the first cylinder.

[0025] Further optionally:

[0026] The upper side wall of the first cylinder is provided with a water inlet and the lower side wall of the first cylinder is provided with a water outlet,

[0027] wherein the water inlet is used to connect to a water inlet pipe; the water outlet is used to connect to a drain pipe.

[0028] A second aspect of the present invention discloses a drum washing machine, which includes the cylinder assembly of any one of the above-mentioned drum washing machines.

[0029] Further optionally:

[0030] The drum washing machine further includes: a driving device for driving the second cylinder to rotate,

[0031] wherein the driving device includes: a motor; a pulley disposed on the rotating shaft of the motor; and a belt installed between the pulley and the second cylinder.

[0032] Further optionally:

[0033] The drum washing machine further includes a support base and / or a hoisting connection member,

[0034] The support base is disposed on the lower side of the first cylinder and is used for supporting the cylinder assembly;

[0035] The hoisting connection member is disposed on the upper side of the first cylinder and is used for damping the cylinder assembly.

[0036] Further optionally:

[0037] The cylinder assembly is placed obliquely, wherein the second cylinder is coaxially disposed with the first cylinder, and the second cylinder is higher than the first cylinder; the water inlet on the upper side wall of the first cylinder is arranged upward and close to the first mounting port of the first cylinder, and the water outlet on the lower side wall of the first cylinder is arranged downward and close to the bottom of the first cylinder.

[0038] Advantageous effects: Since the outer cylinder is removed and there is no interlayer between the inner and outer cylinders, bacteria and dirt will not accumulate, and the clothes will not be secondarily contaminated; at the same time, since the inner cylinder has no holes, the water inlet and drainage system is optimized, and the water consumption is significantly reduced. Description of the Drawings

[0039] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objects, features and advantages of the present invention will become more obvious. The following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 Shows an overall schematic diagram of the internal components of a washing machine equipped with a cylinder assembly;

[0041] Figure 2 Shows a side view of the internal components of a washing machine equipped with a cylinder assembly;

[0042] Figure 3 Shows a cross-sectional view of the internal components of a washing machine equipped with a cylinder assembly;

[0043] Figure 4 Shows a front view of the internal components of a washing machine equipped with a cylinder assembly;

[0044] Figure 5 Shows an exploded view of the internal components of a washing machine equipped with a cylinder assembly;

[0045] Figure 6 Shows a schematic diagram of the internal components of a washing machine equipped with a cylinder assembly. Detailed Description of the Embodiments

[0046] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0048] It should be understood that the term "and / or" used herein is only an associative relationship describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0049] It should also be noted that the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or system. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0050] Currently, there is water storage between the inner and outer drums of a drum washing machine, with a large amount of water used, and residual substances such as dirt and bacteria can cause secondary pollution of clothes. The present invention improves the drum assembly of the washing machine. The inner drum is changed to a front drum with a slightly longer and holeless cylinder body as a rotating drum. At the same time, a hollow baffle is designed at the rear of the front drum to meet the flowing water while blocking clothes from entering the rear drum; the outer drum is removed and changed to a rear drum with a slightly shorter and non-rotating cylinder body as a water storage drum for water inlet and drainage; a bearing connection is added between the front and rear drums; and the whole of the drum assembly has a certain inclination angle. Compared with the existing drum assembly, since the outer drum is removed, there is no interlayer between the inner and outer drums, so bacteria and dirt will not accumulate, and clothes will not be secondarily polluted; at the same time, since the inner drum has no holes, the water inlet and drainage system is optimized, and the water consumption is significantly reduced.

[0051] To further elaborate on the technical solutions in the present invention, now in combination with Figures 1 - 6 , the following specific embodiments are provided.

[0052] Embodiment 1

[0053] In this embodiment, a drum assembly of a drum washing machine is provided. The drum assembly includes a first drum 2 and a second drum 1 rotatably arranged on the first drum 2. Specifically: The first drum 2 has a water storage cavity, and a first installation port communicating with the water storage cavity is formed at one end of the first drum 2; The second drum 1 has a laundry cavity, a second installation port communicating with the laundry cavity is formed at one end of the second drum 1, and a clothing access port communicating with the laundry cavity is formed at the other end. The first drum and the second drum are rotatably connected through the second installation port and the first installation port, and at the same time, the laundry cavity is communicated with the water storage cavity based on the cooperation of the two installation ports. This design ensures that the water in the water storage cavity can enter the laundry cavity, and when the second drum rotates, clothes washing is realized.

[0054] Optionally, the second installation port is rotatably sleeved on the first installation port. Further, the drum assembly further includes a bearing 3. The bearing 3 is sleeved between the first installation port and the second installation port. The inner ring of the bearing 3 is fixed to the first installation port, and the outer ring of the bearing 3 is fixed to the second installation port. By adding the bearing, the friction between the first drum 2 and the second drum 1 is reduced.

[0055] The drum assembly further includes a gasket 14 and a fixing plate 12.

[0056] The gasket 14 is integrally rotatably sleeved outside the first installation port and on one side of the second installation port. The gasket 14 is used to cooperate with the inner wall of the second installation port to fix the outer ring of the bearing 3 to the second installation port. It can be understood that this method surrounds and tightens the gasket 14 on one side of the second installation port, and uses the expansion force of the gasket for fixation.

[0057] The fixing plate 12 is rotatably disposed inside the second installation port and on one side of the first installation port, and is used to cooperate with the outer wall of the first installation port to fix the inner ring of the bearing 3 to the first installation port. Among them, the fixing plate 12 and the first installation port can be fixed by screws but are not limited to this. Preferably: The drum assembly further includes a sealing ring 13 disposed between the fixing plate 12 and the first installation port.

[0058] In some optional ways, the drum assembly further includes a hollow baffle 4 for blocking the washed clothes from entering the water storage cavity from the laundry cavity. The hollow baffle 4 is arranged in the laundry cavity along a direction parallel to the cross-section of the second drum 1 and is located on the side close to the second installation port. In addition, the drum length of the second drum 1 is greater than the drum length of the first drum 2. The size of the first drum in this drum assembly can be set according to the actual water consumption requirements. Since the washing machine equipped with this drum assembly has a small water consumption, designing it shorter can also reduce space and reduce consumable costs.

[0059] The upper side wall of the first cylinder 2 is provided with a water inlet 21, and the lower side wall of the first cylinder 2 is provided with a water outlet 22. The water inlet 21 is used to connect to the water inlet pipe; the water outlet 22 is used to connect to the drain pipe.

[0060] Embodiment 2

[0061] In this embodiment, a drum washing machine is provided, and the drum washing machine includes the drum assembly of any one of the drum washing machines in Embodiment 1.

[0062] In addition, the drum washing machine further includes: a driving device for driving the second cylinder 1 to rotate. Specifically: the driving device includes a motor 7; a pulley 6 provided on the rotating shaft of the motor 7; and a belt 5 installed between the pulley 6 and the second cylinder 1.

[0063] When fixing the drum assembly in the washing machine, it is fixed by setting a base and a hoisting connecting piece, etc. Optionally: the drum washing machine further includes a support base 8 and / or a hoisting connecting piece. The hoisting connecting piece includes a connecting piece 10 and a spring 9. The connecting piece 10 is provided on the first cylinder 2. One end of the spring is connected to the connecting piece 10, and the other end is connected to the inner wall of the washing machine body or a bracket in the washing machine body or other corresponding fixing pieces, etc.

[0064] The support base 8 is provided under the first cylinder 2 for supporting the drum assembly of the drum washing machine; the hoisting connecting piece is provided above the first cylinder 2 for damping the drum assembly in the drum washing machine. In addition, a shock absorber 11 can be provided under the support base. One end of the shock absorber 11 is connected to the support base 8, and the other end is provided at the bottom of the drum washing machine body. The shock absorber 11 can cooperate with the hoisting connecting piece to achieve damping and further improve the damping effect.

[0065] To prevent the water flowing from the first cylinder into the second cylinder from overflowing and ensure that the laundry in the second cylinder is as close as possible to the first cylinder to contact the water. Optionally: the drum assembly is placed obliquely, where the second cylinder 1 and the first cylinder 2 are coaxially arranged, and the second cylinder 1 is higher than the first cylinder 2; the water inlet 21 on the upper side wall of the first cylinder 2 is arranged upward and close to the first installation port of the first cylinder 2, and the water outlet 22 on the lower side wall of the first cylinder 2 is arranged downward and close to the bottom of the first cylinder 2. Further preferably: when setting the inclination angle of the drum assembly, the angle between the axis of the first cylinder and the horizontal plane is used as the inclination angle. At this time, the inclination angle range is between 10° and 20°. This inclined setting method is also convenient for drainage.

[0066] By improving the drum assembly in the drum washing machine, the problems of scale and lint remaining easily between the inner and outer drums, resulting in bacteria breeding and excessive water consumption, are solved, and the water inlet and drainage paths are optimized.

[0067] To further illustrate the drum washing machine in this embodiment, a specific description is now given in combination with its working process.

[0068] At this time, the second cylinder 1 of the drum washing machine is slightly longer and has no holes, serving as a rotating cylinder; the hollow partition 4 is fixed in the second cylinder 1, allowing water flow while blocking clothes from entering the first cylinder 2; the first cylinder 2 is slightly shorter and does not rotate, serving as a water storage cylinder for water inlet and drainage. The outer ring of the bearing 3 is fixed to the second cylinder 1 through a gasket 14, and the inner ring of the bearing 3 is fixed to the first cylinder 2 through a fixing plate 12. A sealing ring 13 is provided between the fixing plate 12 and the second cylinder 1. The sealing ring 13 can prevent water in the washing machine from flowing into the bearing 3 and causing it to fail, and at the same time can also provide a support point for the relative sliding of the second cylinder 1 and the fixing plate 12; the water inlet 21 is located at the upper part of the first cylinder 2, and the water outlet 22 is located at the lower part of the bottom of the first cylinder 2. Water flows in from the water inlet 21, flows through the rear cylinder 2 to the second cylinder 1 for washing, and after the washing is completed, the water flows from the front cylinder 1 to the first cylinder 2 and flows out through the water outlet 22; the first cylinder 2 is fixed on the support base 8, the connecting member 10 is fixed on the first cylinder 2 and connected to the spring 9, the spring 9 is fixed at the top of the cabinet, and the shock absorber 11 is fixed at the bottom of the cabinet. The spring 9 and the shock absorber 11 jointly limit the first cylinder 2 to enable the first cylinder 2 to be supported and reduce vibration; the motor 7 is fixed on the support base 8. When the motor 7 is started, it drives the pulley 6 to rotate, the pulley 6 drives the belt 5 to move, and the belt 5 drives the second cylinder 1 and the bearing 3 to rotate; according to the bearing characteristics, the technical requirement of the second cylinder 1 rotating and the first cylinder 2 not rotating is achieved.

[0069] The above specifically shows and describes the exemplary embodiments of the present disclosure. It should be understood that the present disclosure is not limited to the detailed structures, setting methods or implementation methods described here; on the contrary, the present disclosure is intended to cover various modifications and equivalent settings included within the spirit and scope of the appended claims.

Claims

1. A drum assembly of a drum washing machine, characterized in that: The cylinder assembly includes a first cylinder (2) and a second cylinder (1) rotatably arranged on the first cylinder (2), where: The first cylinder (2) has a water storage cavity, and one end of the first cylinder (2) is formed with a first installation port communicating with the water storage cavity; The second cylinder (1) has a laundry cavity, one end of the second cylinder (1) is formed with a second installation port communicating with the laundry cavity, and the other end is formed with a clothing access opening communicating with the laundry cavity; Wherein the second installation port is rotatably connected to the first installation port, and the laundry cavity communicates with the water storage cavity.

2. The drum assembly of the drum washing machine according to claim 1, wherein: The second installation port is rotatably sleeved on the first installation port.

3. The drum assembly of the drum washing machine according to claim 2, wherein: The cylinder assembly further includes a bearing (3), Wherein the bearing (3) is sleeved between the first installation port and the second installation port, the inner ring of the bearing (3) is fixed to the first installation port, and the outer ring of the bearing (3) is fixed to the second installation port.

4. The drum assembly of the drum washing machine according to claim 3, characterized in that: The cylinder assembly further includes a gasket (14) and a fixing plate (12), where The gasket (14) is rotatably sleeved outside the first installation port and on one side of the second installation port, and is used to cooperate with the inner wall of the second installation port to fix the outer ring of the bearing (3) to the second installation port; The fixing plate (12) is rotatably disposed inside the second installation port and on one side of the first installation port, and is used to cooperate with the outer wall of the first installation port to fix the inner ring of the bearing (3) to the first installation port.

5. The drum assembly of the drum washing machine according to claim 4, characterized in that: The cylinder assembly further includes a sealing ring (13) disposed between the fixing plate (12) and the first installation port.

6. The drum assembly of the drum washing machine according to any one of claims 1-5, characterized in that: The cylinder assembly further includes a hollow baffle (4) for preventing the laundry from entering the water storage cavity from the laundry cavity, Wherein the hollow baffle (4) is disposed in the laundry cavity along a direction parallel to the cross-section of the second cylinder (1) and is located on the side close to the second installation port.

7. The drum assembly of the drum washing machine according to claim 6, characterized in that: The cylinder length of the second cylinder (1) is greater than the cylinder length of the first cylinder (2).

8. The drum assembly of the drum washing machine according to claim 7, characterized in that: The upper side wall of the first cylinder (2) is provided with a water inlet (21) and the lower side wall of the first cylinder (2) is provided with a water outlet (22), Wherein the water inlet (21) is used to connect the water inlet pipe; the water outlet (22) is used to connect the drain pipe.

9. A drum washing machine, characterized in that: The drum washing machine includes the cylinder assembly of the drum washing machine according to any one of claims 1-8.

10. The drum washing machine according to claim 9, characterized in that: The drum washing machine further includes: a driving device for driving the second cylinder (1) to rotate, Wherein the driving device includes: a motor (7); and a pulley (6) provided on the rotating shaft of the motor (7); and a belt (5) installed between the pulley (6) and the second cylinder (1).

11. The drum washing machine according to claim 10, characterized in that: The drum washing machine further includes a support base (8) and / or a lifting connection member, The support base (8) is disposed under the first cylinder (2) and is used to support the cylinder assembly; The lifting connection member is disposed above the first cylinder (2) and is used to damp the vibration of the cylinder assembly.

12. The drum washing machine according to any one of claims 9-11, characterized in that: The cylinder assembly is placed obliquely, wherein the second cylinder (1) is coaxially arranged with the first cylinder (2), and the second cylinder (1) is higher than the first cylinder (2); the water inlet (21) on the upper side wall of the first cylinder (2) is arranged upward and close to the first installation port of the first cylinder (2), and the water outlet (22) on the lower side wall of the first cylinder (2) is arranged downward and close to the bottom of the first cylinder (2).

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