Twin-drum washing machine

Through the installation of the mounting frame and shock absorber, the shaking and stress of the barrel of the double-tube washing machine is transmitted to the shell, solving the problems of large vibration and noise of the traditional double-tube washing machine, extending the service life and improving the user experience.

CN112760928BActive Publication Date: 2024-12-31TCL HOME APPLIANCES (HEFEI) CO LTD
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Patent Information

Application Number
CN202011620691.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-12-30
Publication Date
2024-12-31
Estimated Expiration
2040-12-30

AI Technical Summary

Technical Problem

When the barrel is directly connected to the traditional double-tube washing machine, the vibration amplitude is large, which can easily lead to plastic deformation and resonance, reduce service life, and has a large noise, affecting the user experience.

Method used

The mounting frame is used to connect to the shock absorber, and the sway and stress of the cylinder are transmitted to the shell through the shock absorber, reducing interference between the cylinders, reducing amplitude and noise, and extending service life.

Benefits of technology

It effectively reduces the amplitude and noise of the double-tube washing machine, extends the service life of the machine, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a twin-drum washing machine, comprising a shell, a first drum, a second drum, a shock absorber and a mounting frame, wherein the shell has a receiving cavity, the first drum, the second drum and the mounting frame are arranged in the receiving cavity, wherein the mounting frame is provided with a first bearing position and a second bearing position, the first bearing position is used to install the first drum, the second bearing position is used to install the second drum, and the mounting frame is supported on the shell through the shock absorber. The twin-drum washing machine provided by the present invention connects the first drum and the second drum directly to the shock absorber respectively through the arrangement of the mounting frame, and the shaking and stress generated by the first drum and the second drum during operation are transmitted to the shell through the mounting frame, thereby effectively reducing the interference between the first drum and the second drum, and enhancing the overall rigidity of the washing machine, making it less likely to generate resonance, thereby reducing the amplitude and noise of the twin-drum washing machine during operation, extending the service life of the machine, and improving the user experience.
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Description

Technical Field

[0001] The invention relates to the technical field of household appliances, in particular to a double-drum washing machine. Background Art

[0002] Traditionally, a washing machine is a household appliance that can wash clothes. With the gradual improvement of living standards, consumers' demand for washing machines has also increased. For example, children's and adult clothes, underwear and outerwear, quilt covers and ordinary clothes, large items and small clothes, etc., the size, type and material of different clothes determine that the washing environment of different clothes is different. For this reason, many twin-drum washing machines are currently launched on the market, that is, the same washing machine has the function of washing different clothes.

[0003] In the related art, the first barrel and the second barrel of a twin-barrel washing machine are fixedly connected by an intermediate connecting piece, so as to share the same counterweight or the same set of shock absorbers. However, when the first barrel and the second barrel are working at the same time, the structure in which the first barrel and the second barrel are directly connected by the connecting piece greatly increases the vibration amplitude of the washing machine system, which can easily cause large plastic deformation of the barrel and reduce the service life of the machine; at the same time, the vibration frequency increases, which reduces the natural frequency of the system and is prone to resonance. A twin-barrel washing machine with this structure has high noise, large vibration amplitude, and strong vibration, which seriously affects the user experience. Summary of the invention

[0004] The main purpose of the present invention is to provide a double-drum washing machine with smaller amplitude and less prone to resonance.

[0005] To achieve the above object, the present invention provides a double-drum washing machine, comprising:

[0006] A housing having a receiving cavity;

[0007] A first cylinder and a second cylinder are arranged in the accommodating chamber;

[0008] a shock absorber, disposed in the accommodating cavity, and having one end connected to the housing; and

[0009] A mounting frame is arranged in the accommodating cavity, and a first bearing position and a second bearing position are provided on the mounting frame. The first bearing position is used to install the first cylinder, and the second bearing position is used to install the second cylinder. The mounting frame is connected to the other end of the shock absorber and is supported on the outer shell through the shock absorber.

[0010] In one embodiment, the upper end of the mounting frame is suspended to the housing via a hanging spring.

[0011] In one embodiment, a plurality of shock absorbers are provided, and the shock absorbing direction of each shock absorber points to the center of mass of the assembly consisting of the mounting frame, the first cylinder and the second cylinder.

[0012] In one embodiment, an elastic wear-resistant pad is provided between the mounting frame and the first cylinder.

[0013] In one embodiment, an elastic wear-resistant pad is provided between the mounting frame and the second cylinder.

[0014] In one embodiment, the mounting frame includes a connecting frame and a counterweight frame distributed in sequence in the upper and lower directions, the first bearing position is arranged on the connecting frame, the second bearing position is arranged on the counterweight frame, and the lower end of the counterweight frame is supported on the outer shell through the shock absorber.

[0015] In one embodiment, the counterweight rack includes two counterweight frames respectively arranged at both ends of the second cylinder, one of the two counterweight frames is connected and fixed to the front end of the second cylinder, and the other is connected and fixed to the rear end of the second cylinder, and the lower ends of the two counterweight frames are connected by a counterweight rod extending in the front-to-back direction.

[0016] In one embodiment, each of the counterweight frames includes two counterweight plates and a counterweight bridge. The two counterweight plates are arranged on both sides of the second cylinder and are respectively connected and fixed to the second cylinder. The counterweight bridge is detachably connected between the two counterweight plates and is located at the lower ends of the two counterweight plates.

[0017] In one embodiment, two counterweight rods are provided, and the two counterweight rods are respectively provided on both sides of the second cylinder; four shock absorbers are provided, two of which support one of the counterweight rods, and the other two shock absorbers support another one of the counterweight rods.

[0018] In one embodiment, the connecting frame includes two connecting frames respectively arranged on both sides of the first cylinder body, each of the connecting frames includes two connecting plates and a connecting rod, the two connecting plates of each connecting frame are respectively arranged at both ends of the first cylinder body and are respectively connected and fixed to the first cylinder body, and the connecting rod of each connecting frame extends in the front-to-back direction, and the two ends are respectively fixed to the upper ends of the corresponding two connecting plates.

[0019] In one embodiment, there are three connecting portions between each of the connecting plates and the first cylinder and the second cylinder, and the three connecting portions are distributed in a triangular shape.

[0020] In one embodiment, each of the connecting rods is provided with a hanging spring, and the connecting frame is hung on the housing through the hanging spring.

[0021] In one embodiment, the lower ends of the two connecting plates of each connecting frame are respectively connected and fixed to the upper ends of the two counterweight frames.

[0022] The twin-barrel washing machine provided by the present invention comprises a shell, a first barrel, a second barrel, a shock absorber and a mounting frame, wherein the shell has a receiving cavity, the first barrel, the second barrel and the mounting frame are arranged in the receiving cavity, wherein the mounting frame is provided with a first bearing position and a second bearing position, the first bearing position is used to install the first barrel, the second bearing position is used to install the second barrel, and the mounting frame is supported on the shell through the shock absorber. The twin-barrel washing machine provided by the present invention connects the first barrel and the second barrel directly to the shock absorber respectively through the arrangement of the mounting frame, and the shaking and stress generated by the first barrel and the second barrel during operation are transmitted to the shell through the mounting frame, thereby effectively reducing the interference between the first barrel and the second barrel, and it is not easy to generate resonance, thereby reducing the amplitude and noise of the twin-barrel washing machine during operation, extending the service life of the machine, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a double-drum washing machine provided by the present invention, wherein the outer shell portion is shown;

[0025] Figure 2 for Figure 1 A front view of a medium twin-drum washing machine;

[0026] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of a double-drum washing machine, wherein the outer shell is not shown;

[0027] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure of the middle mounting frame;

[0028] Figure 5 for Figure 4 Front view of the center mounting bracket.

[0029] Description of Figure Numbers:

[0030]

[0031]

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] It should be noted that if a directional indication is involved in the embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B.

[0035] See also Figures 1 to 4 The present invention provides an embodiment of a twin-drum washing machine. In this embodiment, the up-down direction and the front-back direction are used to describe the orientation of the twin-drum washing machine during operation, and do not include the orientation of the twin-drum washing machine during transportation or production. It should be noted that the up-down direction refers to a direction roughly extending along gravity, but is not necessarily completely parallel to gravity, and the front-back direction refers to a direction roughly extending along the axis of the two barrels in the twin-drum washing machine, wherein the end of the barrel with an opening is the front end, and the other end is the rear end.

[0036] See also Figure 1 The double-drum washing machine 100 provided by the present invention comprises a shell 10, a first barrel 11, a second barrel 12, a shock absorber 30 and a mounting frame 20, wherein the shell 10 has a accommodating cavity, the first barrel 11, the second barrel 12 and the mounting frame 20 are arranged in the accommodating cavity, the shock absorber 30 is arranged in the accommodating cavity, and one end is connected to the shell 10, wherein the mounting frame 20 is provided with a first bearing position 201 and a second bearing position 202, the first bearing position 201 is used to install the first barrel 11, and the second bearing position 202 is used to install the second barrel 12, the mounting frame 20 is connected to the other end of the shock absorber 30, and is supported on the shell 10 through the shock absorber 30.

[0037] In the present embodiment, the outer shell 10 is an enclosure that surrounds the outside of the twin-drum washing machine 100, and has a containing cavity, and the internal components of the washing machine are all placed in the containing cavity. The outer shell 10 plays the role of bearing and protecting the internal components of the washing machine, and can transmit the weight of the internal components of the washing machine and the vibration generated during the operation of the washing machine to the ground. The shape and material of the outer shell 10 are not limited, and it is generally a box-shaped component, which can be made of steel or engineering plastics. The first barrel 11 and the second barrel 12 can be provided with a washing machine drum, or other forms of washing drums. When the washing machine is working, water and detergent can be injected to wash the clothes in the drum. The first barrel 11 and the second barrel 12 can work separately or simultaneously. When working, the first barrel 11 and / or the second barrel 12 vibrate. The specific structure of the mounting frame 20 is not limited, and it mainly plays the role of supporting the first cylinder 11 and the second cylinder 12. A first bearing position 201 and a second bearing position 202 are provided on the mounting frame 20, which are used to respectively mount the first cylinder 11 and the second cylinder 12, so as to transfer the gravity of the first cylinder 11 and the second cylinder 12 to the housing 10, and specifically supported on the housing 10 by a shock absorber 30 connecting the mounting frame 20 and the housing 10. Preferably, the shock absorber 30 is provided at the lower end of the mounting frame 20. The type of the shock absorber 30 is not limited, as long as it can reduce the vibration generated by the first cylinder 11 and the second cylinder 12 during operation. For example, it can be a commonly used spring shock absorber 30 or a damping shock absorber 30, etc.

[0038] In this embodiment, the twin-barrel washing machine 100 connects the first barrel 11 and the second barrel 12 directly to the shock absorber 30 respectively through the setting of the mounting frame 20. Compared with the conventional twin-barrel washing machine 100, the twin barrels are connected by a connecting piece, and one of the barrels is connected to the shock absorber 30. In this embodiment, the first barrel 11 and the second barrel 12 are directly connected to the shock absorber 30 through the mounting frame 20. In this way, most of the shaking and stress generated by the first barrel 11 and the second barrel 12 during operation are transmitted to the housing 10 through the mounting frame 20. Although there is still vibration transmission between the first barrel 11 and the second barrel 12, since both are directly connected to the shock absorber 30, compared with the conventional twin-barrel washing machine 100 structure, the interference between the first barrel 11 and the second barrel 12 can be effectively reduced. In addition, due to the setting of the mounting frame 20, the overall rigidity of the washing machine is enhanced, and resonance is not easy to occur, thereby reducing the amplitude and noise of the twin-barrel washing machine 100 during operation, extending the service life of the machine, and improving the user experience.

[0039] The upper drum of a conventional twin-drum washing machine 100 is usually connected to the housing 10 via a hanging spring 40. When the upper drum vibrates, stress and deformation are concentrated at the connection between the hanging spring 40 and the upper drum, which may easily cause deformation and damage to the upper drum. Figure 1 and Figure 2The upper end of the mounting is suspended on the housing 10 by a hanging spring 40. Thus, the mounting frame 20, the first barrel 11 and the second barrel 12 are elastically connected to the housing 10 as a whole through the setting of the hanging spring 40 and the shock absorber 30, and a certain buffer space is provided between the mounting frame 20 and the housing 10. On the one hand, the housing 10 is supported at multiple points to enhance the stability of the assembly. On the other hand, the setting of the hanging spring 40 and the shock absorber 30 reduces the vibration transmission of the first barrel 11 and the second barrel 12 to the housing 10 during operation, thereby reducing the amplitude and noise of the double-barrel washing machine 100 during operation. In addition, the shortcoming that the hanging spring 40 is directly connected to the first barrel 11, which causes the first barrel 11 to be easily damaged, can be avoided.

[0040] In one embodiment, see Figure 2 and Figure 3 , there are multiple shock absorbers 30, and the shock absorbing direction of each shock absorber 30 points to the center of mass of the assembly consisting of the mounting frame 20, the first barrel 11 and the second barrel 12. In this embodiment, the mounting frame 20, the first barrel 11 and the second barrel 12 can be regarded as a relatively rigid body as a whole, and have a common center of mass. When the double-barrel washing machine 100 is working, the rigid body generates vibration, and transmits the vibration to the housing 10 through multiple shock absorbers 30. In this embodiment, the shock absorbing direction of the shock absorber 30 refers to the direction in which the shock absorber 30 absorbs the vibration force when working. For example, for a spring shock absorber 30, it can be the direction in which the spring in the shock absorber 30 extends, and for a damping shock absorber 30, it can be the extension direction of the hydraulic cylinder or the pneumatic cylinder telescopic part. The shock absorbing direction of each shock absorber 30 points to the center of mass of the assembly consisting of the mounting frame 20, the first barrel 11 and the second barrel 12, so that the shock absorbing effect of the shock absorber 30 is fully exerted and the shock absorbing effect is improved.

[0041] In one embodiment, an elastic wear-resistant member (not shown) is provided between the mounting frame 20 and the first cylinder 11. In one embodiment, an elastic wear-resistant member (not shown) is provided between the mounting frame 20 and the first cylinder 12. The above two embodiments can be implemented in combination.

[0042] The first cylinder 11 and the second cylinder 12 generate vibrations during operation, and wear is easily generated due to the gap between the connection parts with the mounting frame 20. The elastic wear-resistant part can reduce the wear of the first cylinder 11 and / or the second cylinder 12 on the one hand, and can also play a buffering role and reduce noise on the other hand. The elastic wear-resistant part is generally made of elastic-plastic material, and can be a rubber pad or sponge.

[0043] Based on the above embodiment, the mounting frame 20 includes a connecting frame 21 and a counterweight frame 22 which are sequentially distributed in the upper and lower directions. The first bearing position 201 is arranged on the connecting frame 21, and the second bearing position 202 is arranged on the counterweight frame 22. The lower end of the counterweight frame 22 is supported on the outer shell 10 through the shock absorber 30.

[0044] In this embodiment, the connecting frame 21 serves to connect and support the first barrel 11, and the counterweight frame 22 serves to counterweight and carry the second barrel 12. The counterweight frame 22 has a greater mass than the connecting frame 21, so that the center of gravity of the assembly consisting of the mounting frame 20, the first barrel 11 and the second barrel 12 is lowered, thereby improving the overall stability, reducing the amplitude of the double-barrel washing machine 100 when it is working, and reducing the working noise. The connecting frame 21 and the counterweight frame 22 can be set as one body or separately. When the two are set as one body, the connecting frame 21 has a relatively light and thin size, and the counterweight frame 22 can have a large size and / or be installed with a counterweight. In this embodiment, the connecting frame 21 and the counterweight frame 22 can also be set as a separate body. When the two are set as a separate body, the connecting frame 21 can be a lightweight material such as aluminum alloy or steel, and the counterweight frame 22 can be a material with a higher density such as reinforced concrete, and a counterweight with a higher density can be further installed. The lower end of the counterweight frame 22 is supported on the housing 10 through a shock absorber 30.

[0045] On the basis of the previous embodiment, the counterweight frame 22 includes two counterweight frames 221 respectively arranged at the two ends of the second barrel 12, one of the two counterweight frames 221 is connected and fixed to the front end of the second barrel 12, and the other is connected and fixed to the rear end of the second barrel 12, and the lower ends of the two counterweight frames 221 are connected by a counterweight rod 222 extending in the front-to-back direction. In this embodiment, the two counterweight frames 221 are respectively arranged at the front and rear ends of the second barrel 12, and are respectively used to be connected and fixed to the second barrel 12, and the two counterweight frames 221 are connected by a counterweight rod 222, and the counterweight rod 222 can be a material with a large mass such as reinforced concrete, and the counterweight rod 222 is connected to the lower ends of the two counterweight frames 221, further reducing the center of gravity of the counterweight frame 22, improving the overall stability of the double-barrel washing machine 100, and reducing the amplitude. The counterweight rod 222 also serves to connect the two counterweight frames 221 and improve the overall stiffness of the counterweight frame 22, especially in the front-to-back direction.

[0046] Further, each counterweight frame 221 includes two counterweight plates 223 and a counterweight bridge 224, the two counterweight plates 223 are respectively arranged on both sides of the second cylinder 12, and are respectively connected and fixed to the second cylinder 12, and the counterweight bridge 224 is detachably connected between the two counterweight plates 223, and is located at the lower end of the two counterweight plates 223. In this embodiment, the counterweight bridge 224 can be a reinforced concrete connector with a large mass, which is arranged between the two counterweight plates 223 of the counterweight frame 221 and is located at the lower end of the two counterweight plates 223. On the one hand, the overall center of gravity of the counterweight frame 22 is further lowered, and on the other hand, a suitable counterweight can be selected according to the actual working conditions of the twin-tub washing machine 100, so that the mounting frame 20 has higher adaptability. Since the overall mass of the counterweight frame 221 is relatively large, if it is set as an integrated unit, it will easily cause inconvenience in transportation and assembly. The counterweight bridge 224 and the counterweight plate 223 are set separately, which makes the assembly process of the twin-drum washing machine 100 simpler, reduces the risk of installation difficulties caused by the mismatch between the sizes of the counterweight frame 221 and the second drum 12, reduces the dimensional accuracy requirements of the counterweight frame 221, and improves assembly efficiency.

[0047] In one embodiment, two counterweight rods 222 are provided, and the two counterweight rods 222 are respectively provided on both sides of the second cylinder 12, and four shock absorbers 30 are provided, wherein two shock absorbers 30 support one of the counterweight rods 222, and the other two shock absorbers 30 support the other counterweight rods 222. In this way, the overall rigidity of the mounting frame 20 is enhanced by the provision of the two counterweight rods 222, and the four shock absorbers 30 cooperate with the counterweight rods 222, so that the gravity and vibration transmission are more uniform.

[0048] In one embodiment, the connecting frame 21 includes two connecting frames 211 disposed on both sides of the first cylinder 11, each connecting frame 211 includes two connecting plates 212 and a connecting rod 213, the two connecting plates 212 of each connecting frame 211 are disposed on both ends of the first cylinder 11, and are respectively connected and fixed to the first cylinder 11, and the connecting rod 213 of each connecting frame 211 extends in the front-to-back direction, and the two ends are respectively fixed to the upper ends of the corresponding two connecting plates 212. In this embodiment, the two connecting frames 211 are disposed on both sides of the cylinder, so that the size of the connecting frame 211 and the first cylinder 11 is easier to adapt, and the requirements for the dimensional accuracy of the connecting frame 211 are reduced. The two connecting plates 212 are respectively connected and fixed to the two ends of the first cylinder 11 to stably support the first cylinder 11, and the connecting rod 213 extends in the front-to-back direction, and the two ends are respectively fixed to the upper ends of the corresponding two connecting plates 212, which plays a good role in enhancing the rigidity of the connecting frame 21, and further improves the overall rigidity of the mounting frame 20, especially the rigidity in the front-to-back direction.

[0049] Further, there are three connecting parts 50 between each connecting plate 212 and the first barrel 11 and the second barrel 12, and the three connecting parts 50 are distributed in a triangular shape. In the present embodiment, the connecting frame 211 is connected to both the first barrel 11 and the second barrel 12, further improving the overall rigidity of the assembly. In addition, there are three connecting parts 50 between each connecting plate 212 and the first barrel 11 and the second barrel 12, wherein the connecting part 50 refers to the fixed connecting point between the first barrel 11 or the second barrel 12 and the connecting plate 212, and a connecting member is arranged at the fixed connecting point to firmly connect the first barrel 11 or the second barrel 12 to the connecting plate 212, and the connecting member can be a bolt or the like. The three connecting parts 50 are distributed in a triangular shape, so that the connection between the first barrel 11 and the second barrel 12 is more stable, the torsional rigidity between the two is enhanced, and the possibility of torsional deformation during vibration is reduced.

[0050] In one embodiment, a hanging spring 40 is respectively provided on each connecting rod 213, so that the connecting frame 21 is suspended on the outer shell 10 through the hanging spring 40. Such a setting makes the setting position of the hanging spring 40 close to the center of the entire mounting frame 20, and the transmission of gravity and vibration is more uniform.

[0051] In one embodiment, the lower ends of the two connecting plates 212 of each connecting frame 211 are respectively connected and fixed to the upper ends of the two counterweight frames 221, so that the connection between the connecting frame 21 and the counterweight frame 22 is realized, and there are four connection points between the two, distributed at the four corners of the connecting frame 21. The connection position is reasonably set, the gravity and vibration are transmitted evenly, and stress concentration can be reduced, thereby extending the overall service life of the mounting frame 20.

[0052] It can be understood that the above three embodiments can be implemented separately or selectively in combination.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A twin-drum washing machine, characterized in that: include: A housing having a receiving cavity; A first cylinder and a second cylinder are arranged in the accommodating chamber; a shock absorber, disposed in the accommodating cavity, and having one end connected to the housing; and A mounting frame is arranged in the accommodating cavity, and a first bearing position and a second bearing position are arranged on the mounting frame, wherein the first bearing position is used to mount the first cylinder, and the second bearing position is used to mount the second cylinder, and the mounting frame is connected to the other end of the shock absorber and is supported on the housing through the shock absorber; The mounting frame includes a connecting frame and a counterweight frame which are sequentially distributed in the upper and lower directions, the first bearing position is arranged on the connecting frame, the second bearing position is arranged on the counterweight frame, and the lower end of the counterweight frame is supported on the housing through the shock absorber; The counterweight frame has a greater mass than the connecting frame; The first drum body and the second drum body are both provided with a washing drum body; The first cylinder and the second cylinder are directly connected to the shock absorber through the mounting frame.

2. The double-drum washing machine according to claim 1, characterized in that: The upper end of the mounting frame is suspended on the housing through a hanging spring.

3. The double-drum washing machine according to claim 1, characterized in that: There are multiple shock absorbers, and the shock absorbing direction of each shock absorber points to the center of mass of the assembly consisting of the mounting frame, the first cylinder and the second cylinder.

4. The double-drum washing machine according to claim 1, characterized in that: An elastic wear-resistant pad is provided between the mounting frame and the first cylinder; and / or An elastic wear-resistant pad is provided between the mounting frame and the second cylinder.

5. The double-drum washing machine according to claim 1, characterized in that: The counterweight rack includes two counterweight frames respectively arranged at the two ends of the second cylinder, one of the two counterweight frames is connected and fixed to the front end of the second cylinder, and the other is connected and fixed to the rear end of the second cylinder, and the lower ends of the two counterweight frames are connected by a counterweight rod extending in the front-to-back direction.

6. The twin-tub washing machine according to claim 5, characterized in that: Each of the counterweight frames includes two counterweight plates and a counterweight bridge. The two counterweight plates are arranged on both sides of the second cylinder and are respectively connected and fixed to the second cylinder. The counterweight bridge is detachably connected between the two counterweight plates and is located at the lower ends of the two counterweight plates.

7. The twin-tub washing machine according to claim 5, characterized in that: There are two counterweight rods, which are respectively arranged on both sides of the second cylinder; There are four shock absorbers, two of which support one of the counterweight rods, and the other two shock absorbers support another of the counterweight rods.

8. The twin-tub washing machine according to claim 5, characterized in that: The connecting frame includes two connecting frames respectively arranged on both sides of the first cylinder body, each of the connecting frames includes two connecting plates and a connecting rod, the two connecting plates of each connecting frame are respectively arranged at both ends of the first cylinder body and are respectively connected and fixed to the first cylinder body, and the connecting rod of each connecting frame extends in the front-to-back direction, and the two ends are respectively fixed to the upper ends of the corresponding two connecting plates.

9. The twin-tub washing machine according to claim 8, characterized in that: There are three connecting parts between each connecting plate and the first cylinder and the second cylinder, and the three connecting parts are distributed in a triangular shape; and / or Each of the connecting rods is provided with a hanging spring, and the connecting frame is connected to the housing via the hanging spring; and / or The lower ends of the two connecting plates of each connecting frame are respectively connected and fixed to the upper ends of the two counterweight frames.