Drum washing machine

Abstract

A drum washing machine. The drum washing machine comprises a body (1), a first drum assembly (2), and a counterweight (3); the body (1) comprises a first plate body (11); the first drum assembly (2) is connected to the first plate body (11); and the counterweight (3) is connected to the first plate body (11). Thus, a first drum set can be prevented from experiencing off-center vibration, and the overall vibration amount and noise of the washing machine are reduced.

Description

drum washing machine

[0001] Cross-references

[0002] This disclosure claims priority to Chinese patent application number 202311748572.3 filed on December 19, 2023, entitled “Drum Washing Machine”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of electrical appliances, and in particular to a drum washing machine. Background Art

[0004] Nowadays, more and more users choose to wash different types of clothes separately (for example, washing underwear and outerwear separately). Based on this demand, zoned drum washing machines have gradually become the mainstream choice. Zoned drum washing machines consist of a cabinet, a main drum, and a secondary drum.

[0005] At present, the main drum and the auxiliary drum are both located inside the cabinet. In order to reduce the overall height of the washing machine, the main drum and the auxiliary drum are usually eccentrically arranged in the cabinet, wherein the distance from the axis of the main drum to the inner walls on both sides of the cabinet is equal, and the distance from the axis of the auxiliary drum to the inner walls on both sides of the cabinet is unequal.

[0006] In the related art, the sub-drum is connected to the inner walls on both sides of the casing through damping vibration absorbers to achieve vibration reduction. However, since the distances from the axis of the sub-drum to the inner walls on both sides of the casing are not equal, the damping vibration absorbers on both sides of its axis exert unequal forces on the sub-drum, and the sub-drum has eccentric vibration, resulting in a larger overall amplitude and noise in the washing machine. Summary of the Invention

[0007] An embodiment of the present disclosure provides a drum washing machine.

[0008] The embodiment of the present disclosure provides a drum washing machine, comprising a body, a first drum assembly and a counterweight;

[0009] The body includes a first plate;

[0010] The first roller assembly is connected to the first plate;

[0011] The counterweight is connected to the first plate.

[0012] In a possible implementation, the body further includes a box;

[0013] The first plate and the box body are arranged to form a receiving space, and the first roller assembly and the counterweight are both located in the receiving space.

[0014] In a possible implementation, the drum washing machine further includes a first elastic connecting member;

[0015] The first elastic connecting member is located in the accommodating space, and two ends of the first elastic connecting member are respectively connected to the first plate body and the counterweight.

[0016] In a possible implementation, the first elastic connecting member is a hook spring.

[0017] In one possible implementation, the counterweight has a cubic structure, and the counterweight has a hook ring structure on the wall surface close to the first plate body. The first plate body has a hook spring mounting hole, and the two ends of the hook spring are respectively clamped with the hook spring mounting hole and the hook ring structure.

[0018] In a possible implementation, a side of the first plate body close to the first roller assembly has a connecting seat;

[0019] The first roller assembly includes a roller body, a second elastic connector and a connecting rod. The two ends of the second elastic connector are respectively connected to the first plate and the roller body. One end of the connecting rod is connected to the connecting seat, and the other end is connected to the roller body.

[0020] In a possible implementation, the connecting seat includes a seat body and a connecting head, the connecting head is rotatably connected to the seat body, and the connecting head has a mounting through hole, and the mounting through hole is used to accommodate the connecting rod;

[0021] One end of the connecting rod is located in the mounting through hole and is slidably connected to the connecting head, and the other end of the connecting rod is rotatably connected to the drum body.

[0022] In a possible implementation, the center of mass of the counterweight and the center of mass of the first plate are located in the same vertical direction.

[0023] In a possible implementation, a length L1 of the counterweight in the axial direction of the first roller assembly is smaller than an axial length L2 of the first roller assembly.

[0024] In a possible implementation, the counterweight and the first plate are integrally formed.

[0025] In a possible implementation, the counterweight is connected to the first plate via bolts.

[0026] In a possible implementation, the first drum assembly includes a drum body, and the drum body is directly connected to the first plate.

[0027] In a possible implementation, the distances between the axis of the first drum assembly and two opposite inner walls of the box are unequal.

[0028] In a possible implementation, the drum washing machine further includes a second drum assembly, which is located in the housing and connected to the housing; and the first drum assembly is located on one side of the second drum assembly.

[0029] In a possible implementation, the distances between the axis of the second drum assembly and two opposite inner walls of the box are equal.

[0030] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic structural diagram of a drum washing machine according to an embodiment of the present disclosure;

[0033] FIG2 is a partial schematic diagram of a drum washing machine shown in an embodiment of the present disclosure;

[0034] FIG3 is a partial schematic diagram of a drum washing machine shown in an embodiment of the present disclosure;

[0035] FIG4 is a partial schematic diagram of a drum washing machine shown in an embodiment of the present disclosure;

[0036] FIG5 is a partial schematic diagram of a drum washing machine shown in an embodiment of the present disclosure;

[0037] FIG6 is a partial schematic diagram of a drum washing machine shown in an embodiment of the present disclosure;

[0038] FIG7 is a schematic diagram showing the connection between a counterweight and a first plate according to an embodiment of the present disclosure;

[0039] FIG8 is a schematic diagram showing the connection between a counterweight block and a first plate according to an embodiment of the present disclosure;

[0040] FIG9 is a schematic diagram showing the connection between a counterweight block and a first plate body according to an embodiment of the present disclosure.

[0041] Legend: 1. Main body; 11. First plate; 12. Box body; 13. Accommodating space; 14. Second roller assembly; 15. Vibration damping assembly; 141. Outer cylinder; 142. Inner cylinder; 110. Hook spring mounting hole; 111. Connecting seat; 1111. Seat body; 1112. Connecting head; 1112a. Mounting through hole; 2. First roller assembly; 2a. First end of the first roller assembly; 2b. Second end of the first roller assembly; 21. Roller body; 22. Second elastic connecting member; 23. Connecting rod; 3. Counterweight; 31. Threaded hole; 32. Connecting through hole; 33. Hook ring structure; 34. First wall; 35. Second wall; 4. First elastic connecting member. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0043] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present disclosure belongs. The terms "first", "second", "third" and similar words used in the patent disclosure specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Terms such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] Nowadays, with the improvement of living standards, more and more users choose to wash different types of clothes separately when doing laundry at home. For example, in order to prevent light-colored clothes from being stained by dark clothes, light-colored clothes and dark-colored clothes are washed separately. Or, for hygiene reasons, underwear and outerwear are washed separately, socks and underwear are washed separately, and so on. Based on the above-mentioned demand for washing clothes in different zones, zoned drum washing machines have gradually become the mainstream choice for users when purchasing washing machines.

[0045] A partitioned drum washing machine includes a housing, a main drum, and a sub-drum, wherein the main drum is arranged in the housing, and the distance between the axis of the main drum and the inner walls on both sides of the housing is equal. The main drum adopts the same vibration reduction measures as the drum in a conventional drum washing machine, that is, springs and damping vibration absorbers are used to connect the drum and the housing to achieve damping vibration reduction. However, when designing a partitioned drum washing machine, in order to reduce the overall height of the washing machine and adapt to installation standards, the sub-drum is often eccentrically arranged with the main drum, that is, the distance between the axis of the sub-drum and the inner walls on both sides of the housing is not equal. This means that when damping vibration reduction is adopted for the sub-drum, if damping vibration absorbers are respectively arranged on both sides of the axis of the sub-drum, the damping vibration absorbers on both sides of the axis of the sub-drum exert unequal forces on the sub-drum, causing the sub-drum to vibrate eccentrically, resulting in a larger overall amplitude of the washing machine and louder noise.

[0046] The present disclosure provides a drum washing machine, which includes a body 1, a first drum assembly 2 and a counterweight 3. The body 1 includes a first plate 11, the first drum assembly 2 is connected to the first plate 11, and the counterweight 3 is connected to the first plate 11.

[0047] In this way, when the drum washing machine is a partitioned drum washing machine, the first drum assembly 2 serves as the auxiliary drum in the drum washing machine. The first drum assembly 2 is connected to the first plate body 11. The damping vibration isolator is no longer used to reduce the vibration of the first drum assembly 2. The first drum assembly 2 will not vibrate eccentrically. At the same time, the counterweight 3 is connected to the first plate body 11, which can reduce the natural frequency of the first plate body 11, thereby reducing the overall amplitude and noise of the washing machine.

[0048] Below, we introduce the various parts of the drum washing machine:

[0049] 1. Ontology 1

[0050] The body 1 is the main component of the drum washing machine.

[0051] In some possible embodiments, the body 1 includes a first plate 11 , a box 12 , a second roller assembly 14 and a vibration reduction assembly 15 . The various components of the body 1 are described in detail below.

[0052] Box 12

[0053] The box 12 is a component in the body 1 for accommodating the second drum assembly 14 and the vibration reduction assembly 15 .

[0054] As shown in FIG. 1 , the box body 12 has a cubic structure, and the interior thereof is used to place the second roller assembly 14 and the vibration reduction assembly 15 .

[0055] The box body 12 can be formed by riveting a plurality of rectangular wall panels, or by welding a plurality of rectangular wall panels, or by a stamping process. The embodiment of the present disclosure does not limit the processing method of the box body 12.

[0056] Second roller assembly 14

[0057] In the case that the drum washing machine is a partitioned drum washing machine, the second drum assembly 14 serves as the main drum in the drum washing machine.

[0058] 1 , the second drum assembly 14 is located inside the housing 12 and is connected to the housing 12 .

[0059] In practice, the distances between the axis of the second roller assembly 14 and two opposite inner walls of the box body 12 are equal.

[0060] In this way, the connection stability between the second drum assembly 14 and the box body 12 can be improved.

[0061] In one example, the second roller assembly 14 includes an outer cylinder 141 and an inner cylinder 142 . The outer cylinder 141 and the inner cylinder 142 are coaxially arranged, and the outer cylinder 141 is sleeved on the outer ring of the inner cylinder 142 .

[0062] In practice, the outer drum 141 is connected to two opposite inner walls, and the inner drum 142 is rigidly connected to the output shaft of the motor. When the motor is in working state, the output shaft rotates to drive the inner drum 142 to rotate, completing the washing work on the clothes in the inner drum 142.

[0063] Vibration reduction assembly 15

[0064] The vibration reduction assembly 15 is a component in the body 1 for reducing vibration of the second roller assembly 14 .

[0065] 1 , the vibration reduction assembly 15 includes a plurality of damping vibration absorbers, and both ends of the plurality of damping vibration absorbers are connected to the outer cylinder 141 and the box body 12 respectively.

[0066] In implementation, the same number of damping shock absorbers are distributed on both sides of the axis of the second roller assembly 14, that is, when two damping shock absorbers are provided on the left side of the axis of the second roller assembly 14, two damping shock absorbers are also provided on the right side of the axis of the second roller assembly 14; when three damping shock absorbers are provided on the left side of the axis of the second roller assembly 14, three damping shock absorbers are also provided on the right side of the axis of the second roller assembly 14, and the damping shock absorbers located on both sides of the axis of the second roller assembly 14 are symmetrically distributed with respect to the vertical plane where the axis of the second roller assembly 14 is located.

[0067] In this way, the vibration reduction effect of the vibration reduction assembly 15 can be improved.

[0068] First plate 11

[0069] The first plate 11 is a component in the main body 1 used to connect with the first drum assembly 2 .

[0070] As shown in FIG. 1 , the first plate 11 is connected to two opposite wall panels in the box 12 .

[0071] The connection method between the first plate body 11 and the box body 12 can be welding, riveting, or a detachable connection through bolts. The embodiment of the present disclosure does not limit the connection method between the first plate body 11 and the box body 12.

[0072] The first plate 11 may be an upper cover of the box 12 or a plate outside the box 12 .

[0073] When the first plate 11 is a plate outside the box 12 , the first plate 11 can be assembled with two opposite wall panels in the box 12 first, and then the upper cover of the box 12 is installed on the first plate 11 to complete the assembly of the box 12 .

[0074] In one example, as shown in FIG1 , the first plate 11 is located above the box 12 , the lower surface of the first plate 11 is in contact with two opposite wall panels of the box 12 , and the first plate 11 and the box 12 are riveted together.

[0075] Optionally, the two opposite wall panels in the box body 12 may be both perpendicular to the bottom plate of the box body 12 , and the two opposite wall panels in the box body 12 may have the same height.

[0076] In this way, the first plate body 11 can be parallel to the bottom plate of the box body 12, thereby improving the connection stability between the first roller assembly 2 and the first plate body 11.

[0077] In one example, as shown in FIG1 , the first plate body 11 and the box body 12 enclose a receiving space 13 , and the first roller assembly 2 and the counterweight 3 are both located in the receiving space 13 and are both connected to the first plate body 11 .

[0078] In this way, the space utilization rate in the housing 12 can be improved and the overall height of the drum washing machine can be reduced.

[0079] In one example, the first roller assembly 2 can be arranged in the accommodating space 13 and connected to the first plate body 11, and the counterweight 3 can be arranged outside the accommodating space 13, for example, above the first plate body 11 and connected to the first plate body 11.

[0080] In this way, the connection difficulty between the counterweight 3 and the first plate body 11 can be reduced.

[0081] 2. First roller assembly 2

[0082] In some embodiments, the first drum assembly 2 includes a drum body 21 , a second elastic connector 22 and a connecting rod 23 .

[0083] As shown in Figure 1, the first roller assembly 2 is arranged in the accommodating space 13. Referring to Figure 4, the first plate body has a connecting seat 111 on the side close to the first roller assembly 2, and the two ends of the second elastic connecting member 22 are respectively connected to the first plate body 11 and the roller body 21. One end of the connecting rod 23 is connected to the connecting seat 111, and the other end is connected to the roller body 21.

[0084] The specific structure of the drum body 21 can refer to the above introduction about the second drum assembly 14, and will not be repeated here.

[0085] Optionally, the second elastic connecting member 22 may be a spring, the connecting rod 23 may have a cylindrical structure, one end of the connecting rod 23 may be slidably connected to the connecting seat 111 , and the other end of the connecting rod 23 may be rotatably connected to the drum body 21 .

[0086] In this way, through the second elastic connecting member 22, the first drum assembly 2 can be flexibly connected to the first plate body 11. Furthermore, when the drum body 21 vibrates during operation, the second elastic connecting member 22 can absorb part of the energy, thereby reducing the amplitude of the drum body 21, and thus reducing the overall amplitude and noise of the drum washing machine.

[0087] In one example, as shown in Figure 5, the connecting seat 111 includes a seat body 1111 and a connecting head 1112, the connecting head 1112 is rotatably connected to the seat body 1111, the connecting head 1112 has a mounting through hole 1112a, the mounting through hole 1112a is used to accommodate one end of the connecting rod 23, one end of the connecting rod 23 is located in the mounting through hole 1112a, and is slidably connected to the connecting head 1112, and the other end of the connecting rod 23 is rotatably connected to the drum body 21.

[0088] Optionally, the connector 1112 may be rotatably connected to the base 1111 via a hinge.

[0089] In this way, if there is a coaxiality deviation between the roller body 21 and the output shaft of the motor during installation, when the roller body 21 vibrates eccentrically during operation, the cooperation between the connecting seat 111 and the connecting rod 23 can limit the roller body 21, avoiding large stretching of the second elastic connecting member 22, thereby improving the service life of the first roller assembly 2.

[0090] Optionally, the outer ring of the connecting rod 23 at one end of the mounting through hole 1112a may be provided with a wear-resistant layer.

[0091] For example, the material of the wear-resistant layer may be tungsten-molybdenum alloy, nickel-chromium alloy, etc. The embodiment of the present disclosure does not limit the material of the wear-resistant layer.

[0092] In this way, the service life of the connecting rod 23 can be increased.

[0093] In one example, the first roller assembly 2 may not include the second elastic connector 22 and the connecting rod 23, but only include the roller body 21, and the roller body 21 may be directly connected to the first plate 11 without being indirectly connected through other connectors.

[0094] 3. Counterweight 3

[0095] The counterweight 3 is a component in the drum washing machine that is connected to the first plate 11 to reduce the natural frequency of the first plate 11 .

[0096] In some embodiments, the counterweight 3 can be connected to the first plate 11 by bolts.

[0097] In one example, the counterweight 3 may be provided with a threaded hole 31 , and an internal thread is provided in the threaded hole 31 .

[0098] For example, the internal thread may be a fine thread, the thread profile may be an equilateral triangle, and may have a larger fillet at the thread root.

[0099] In this way, the stress concentration at the tooth root can be reduced. In addition, due to the vibration of the first roller assembly 2, there is a load between the counterweight 3 and the first plate body 11. Setting the internal thread as a fine thread can make the counterweight 3 and the first plate body 11 have better self-locking performance under the action of the load, preventing the external counterweight 3 from shaking relative to the first plate body 11 and generating noise.

[0100] As shown in FIG8 , there can be multiple threaded holes 31, each located on the wall of the counterweight 3 near the first plate 11. The first plate 11 has multiple through holes, the positions of which correspond to the positions of the threaded holes 31. The bolt head is located on the side of the first plate 11 away from the counterweight 3 and is in contact with the first plate 11.

[0101] In practice, the depth of the threaded hole 31 can be less than the thickness of the counterweight 3. A bolt can pass through the through hole and extend into the threaded hole 31. The external thread on the outer wall of the bolt cooperates with the internal thread on the inner wall of the threaded hole 31 to achieve a fixed connection between the counterweight 3 and the first plate 11.

[0102] In this way, the difficulty of assembling the counterweight 3 and the first plate body 11 can be reduced.

[0103] In one example, as shown in FIG9 , the counterweight 3 may be provided with a connecting through hole 32 . The number of the connecting through holes 32 may be multiple, and the first plate 11 has multiple through holes, and the positions of the multiple through holes correspond to the positions of the connecting through holes 32 .

[0104] In implementation, one end of the bolt can pass through the through hole on the first plate body 11 and the connecting through hole 32 in sequence, so that the bolt head is against the side wall of the first plate body 11 away from the counterweight 3, and the nut and one end of the bolt are assembled together to achieve a fixed connection between the counterweight 3 and the first plate body 11.

[0105] In this way, the processing cost of the counterweight 3 is reduced.

[0106] In some embodiments, the counterweight 3 can be integrally formed with the first plate 11 .

[0107] In this way, the difficulty of assembling the counterweight 3 and the first plate body 11 can be reduced.

[0108] In practice, the counterweight 3 and the first plate 11 can be integrally formed by a casting process or a cutting process. The embodiment of the present disclosure does not limit the forming method of the counterweight 3 and the first plate 11.

[0109] In one example, the counterweight 3 may have a cubic structure, and the center of mass of the counterweight 3 and the center of mass of the first plate 11 are located in the same numerical direction.

[0110] Optionally, the length of the counterweight 3 in the direction perpendicular to the first roller assembly 2 is smaller than the length of the first plate 11 in the direction perpendicular to the first roller assembly 2 .

[0111] For example, the length of the counterweight 3 in the direction perpendicular to the first roller assembly 2 may be L3, the length of the first plate 11 in the direction perpendicular to the first roller assembly 2 may be L4, and L3 and L4 satisfy L3=0.2L4.

[0112] In practice, the natural frequency of the first plate 11 is inversely proportional to the mass of the first plate 11 and directly proportional to the stiffness of the first plate 11. Thus, when the counterweight 3 is integrally formed with the first plate 11, the stiffness of the first plate 11 can be minimized, thereby minimizing the increment in the natural frequency of the first plate 11 due to the integral formation of the counterweight 3. This in turn reduces the natural frequency of the first plate 11, thereby reducing the overall vibration amplitude and noise of the washing machine.

[0113] Optionally, the density of the counterweight 3 is greater than the density of the first plate 11 .

[0114] For example, the first plate 11 may be made of super-hard aluminum, and the counterweight 3 may be made of industrial pure iron.

[0115] In this way, the rigidity of the first plate body 11 can be reduced, and the mass of the counterweight 3 can be increased, thereby reducing the natural frequency of the first plate body 11 and the overall amplitude and noise of the washing machine.

[0116] Below, some optional structural features of drum washing machines are introduced:

[0117] Structural feature 1: The drum washing machine further includes a first elastic connecting member 4.

[0118] As shown in FIG. 1 and FIG. 2 , the first elastic connector 4 is located in the accommodating space 13 , and both ends of the first elastic connector 4 are connected to the first plate 11 and the counterweight 3 , respectively.

[0119] In one example, the first elastic connecting member 4 may be a hook spring.

[0120] In this way, the difficulty of assembling the first elastic connecting member 4 , the first plate body 11 and the counterweight 3 can be reduced.

[0121] In one example, as shown in Figure 3, the counterweight 3 has a cubic structure, and the counterweight 3 has a hook ring structure 33 on the wall surface close to the first plate body 11. The first plate body 11 has a hook spring mounting hole 110, and the two ends of the hook spring are respectively clamped with the hook ring structure 33 and the hook spring mounting hole 110.

[0122] Optionally, the center of mass of the hook structure 33 and the counterweight 3 may be located in the same vertical direction.

[0123] In this way, the connection stability between the first elastic connecting member 4 and the counterweight 3 can be improved.

[0124] Exemplarily, the hook spring mounting hole 110 may consist of two through holes.

[0125] The two through holes mentioned above may both be circular through holes or rectangular through holes. The embodiment of the present disclosure does not limit the shape of the through holes constituting the hook spring mounting hole 110 .

[0126] In implementation, one end of the hook spring has an arc-shaped hook structure, which passes through the above-mentioned two through holes in sequence. After passing through the above-mentioned two through holes in sequence, the two through holes limit the arc-shaped hook structure so that one end of the hook spring is clamped with the hook spring mounting hole 110, and one end of the hook spring is abutted against the connecting part between the two through holes. The connecting part applies a vertical upward supporting force to one end of the hook spring, and the other end of the hook spring passes through the hook ring structure 33, applying a vertical upward pulling force to the hook ring structure 33.

[0127] Optionally, there may be multiple first elastic connectors 4 , and accordingly, the first plate 11 may be provided with multiple hook spring mounting holes 110 , and the wall surface of the counterweight 3 close to the first plate 11 may be provided with multiple hook ring structures 33 .

[0128] In one example, as shown in FIG7 , there are two first elastic connectors 4, two corresponding hook spring mounting holes 110 are provided on the first plate 11, and two hook ring structures 33 are provided on the wall surface of the counterweight 3 adjacent to the first plate 11. The hook spring mounting holes 110 and the hook ring structures 33 are both located in the same vertical plane, with a first angle α formed between the line connecting one hook spring mounting hole 110 and one hook ring structure 33 and the horizontal plane, and a second angle β formed between the line connecting the other hook spring mounting hole 110 and the other hook ring structure 33 and the horizontal plane.

[0129] Exemplarily, the first angle α and the second angle β are equal and both are 45°.

[0130] In this way, when the counterweight 3 moves in the axial direction of the first roller assembly 2, the first elastic connecting member 4 can apply a force to the counterweight 3 in the opposite direction of the movement, preventing the counterweight 3 from moving too far in the axial direction of the first roller assembly 2 and colliding with other components in the main body 1, thereby reducing noise.

[0131] Structural feature 2: The length of the counterweight 3 is smaller than the axial length of the first roller assembly 2 .

[0132] The length of the counterweight 3 is the length of the counterweight in the axial direction of the first roller assembly 2 .

[0133] In one example, as shown in FIG6 , the length of the counterweight 3 in the axial direction of the first roller assembly 2 is L1 , and the axial length of the first roller assembly 2 is L2 , ie, L1 < L2 is satisfied.

[0134] Optionally, as shown in Figure 6, there is a first reference gap between the first wall 34 of the counterweight 3 and the plane where the first end 2a of the first roller assembly 2 is located, and there is a second reference gap between the second wall 35 of the counterweight and the plane where the second end 2b of the first roller assembly 2 is located.

[0135] The first wall surface 34 and the second wall surface 35 are two opposite wall surfaces of the counterweight 3 in the axial direction of the first roller assembly 2 .

[0136] The distance of the first reference gap and the distance of the second reference gap may be equal or unequal. The embodiment of the present disclosure does not limit the specific values ​​of the first reference gap and the second reference gap.

[0137] In this way, when the counterweight 3 moves in the axial direction of the first roller assembly 2, the existence of the first reference gap and the second reference gap can prevent the counterweight 3 from colliding with the box body 12 when moving in the axial direction of the first roller assembly 2, thereby reducing noise.

[0138] The technical solutions provided by the embodiments of the present disclosure include at least the following beneficial effects:

[0139] An embodiment of the present disclosure provides a drum washing machine, comprising a main body 1, a first drum assembly 2, and a counterweight 3. The main body 1 includes a first plate 11, the first drum assembly 2 is connected to the first plate 11, and the counterweight 3 is connected to the first plate 11. Thus, in the case of a partitioned drum washing machine, the first drum assembly 2 serves as a secondary drum in the drum washing machine. The first drum assembly 2 is connected to the first plate 11, and a damping vibration isolator is no longer used to reduce vibration of the first drum assembly 2. Eccentric vibration of the first drum assembly 2 is prevented. Furthermore, the counterweight 3 is connected to the first plate 11, which can reduce the natural frequency of the first plate 11, thereby reducing the overall amplitude and noise of the washing machine.

[0140] The above description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A drum washing machine, comprising a body (1), a first drum assembly (2) and a counterweight (3); The body (1) comprises a first plate (11); The first roller assembly (2) is connected to the first plate body (11); The counterweight (3) is connected to the first plate (11).

2. The drum washing machine according to claim 1, wherein: The main body (1) also includes a box (12); The first plate body (11) and the box body (12) are arranged to form a receiving space (13), and the first roller assembly (2) and the counterweight (3) are both located in the receiving space (13).

3. The drum washing machine according to claim 2, wherein: The drum washing machine also includes a first elastic connecting member (4); The first elastic connecting member (4) is located in the accommodating space (13), and two ends of the first elastic connecting member (4) are respectively connected to the first plate body (11) and the counterweight (3).

4. The drum washing machine according to claim 3, wherein: The first elastic connecting member (4) is a hook spring.

5. The drum washing machine according to claim 4, wherein: The counterweight (3) has a cubic structure, and a hook ring structure (33) is provided on a wall surface of the counterweight (3) close to the first plate (11), and the first plate (11) has a hook spring mounting hole (110), and two ends of the hook spring are respectively engaged with the hook spring mounting hole (110) and the hook ring structure (33).

6. The drum washing machine according to any one of claims 1 to 4, wherein: A side of the first plate body (11) close to the first roller assembly (2) has a connecting seat (111); The first roller assembly (2) comprises a roller body (21), a second elastic connecting member (22) and a connecting rod (23), wherein the two ends of the second elastic connecting member (22) are respectively connected to the first plate body (11) and the roller body (21), and one end of the connecting rod (23) is connected to the connecting seat (111), and the other end is connected to the roller body (21).

7. The drum washing machine according to claim 6, wherein: The connecting seat (111) comprises a seat body (1111) and a connecting head (1112), wherein the connecting head (1112) is rotatably connected to the seat body (1111), and the connecting head (1112) has a mounting through hole (1112a), and the mounting through hole (1112a) is used to accommodate the connecting rod (23); One end of the connecting rod (23) is located in the mounting through hole (1112a) and is slidably connected to the connecting head (1112), and the other end of the connecting rod (23) is rotationally connected to the drum body (21).

8. The drum washing machine according to any one of claims 1 to 4, wherein: The center of mass of the counterweight (3) and the center of mass of the first plate (11) are located in the same vertical direction.

9. The drum washing machine according to any one of claims 1 to 4, wherein: The length L1 of the counterweight (3) in the axial direction of the first roller assembly (2) is smaller than the axial length L2 of the first roller assembly (2).

10. The drum washing machine according to any one of claims 1 to 4, wherein: The counterweight (3) and the first plate (11) are integrally formed.

11. The drum washing machine according to any one of claims 1 to 4, wherein: The counterweight (3) is connected to the first plate (11) via bolts.

12. The drum washing machine according to any one of claims 1 to 4, wherein: The first roller assembly (2) comprises a roller body (21), and the roller body (21) is directly connected to the first plate body (11).

13. The drum washing machine according to any one of claims 1 to 4, wherein: The distances between the axis of the first roller assembly (2) and two opposite inner walls of the box body (12) are unequal.

14. The drum washing machine according to claim 13, wherein: The drum washing machine further comprises a second drum assembly (14), wherein the second drum assembly (14) is located in the housing (12); and the first drum assembly (2) is located on one side of the second drum assembly (14).

15. The drum washing machine according to claim 14, wherein: The distances between the axis of the second roller assembly (14) and two opposite inner walls of the box body (12) are equal.

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