CN216193452U - Drum washing machine - Google Patents

Abstract

The present invention relates to a drum washing machine, wherein, comprising: the first outer cylinder is arranged in the frame and comprises a first front outer cylinder and a first rear outer cylinder connected with the first front outer cylinder, and the second outer cylinder is arranged in the frame and arranged at the upper part of the first outer cylinder; wherein the first front outer cylinder and the first rear outer cylinder have the same rotation center axis, and a ratio of a length of the first rear outer cylinder to a length of the first front outer cylinder in a direction parallel to the rotation center axis of the first outer cylinder is in a range of 5 to 1. The length of the rear outer cylinder is longer than that of the front outer cylinder, so that the strength of the rear outer cylinder is guaranteed.

Description

Drum washing machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to a drum washing machine.

Background

With the continuous progress of science and technology, household appliances are increasingly updated. For example, drum washing machines have been receiving attention for advantages such as no entanglement and less abrasion when washing laundry, and water saving.

The outer tub of the drum washing machine is supported in the frame, and the driving motor located at the rear side of the outer tub is a main force source of the outer tub, and therefore, the rear portion of the outer tub needs to be supported.

However, the front and rear cylinder structures of the outer cylinder are designed to meet the rear support requirements.

SUMMERY OF THE UTILITY MODEL

To overcome the problems of the related art, the present invention provides a drum washing machine, including: the frame, the first urceolus, fix to the said frame, the said first urceolus includes the first front urceolus and first back urceolus in connection with said first front urceolus, the second urceolus, fix to the said frame, and fix to the upper portion of the said first urceolus; wherein the first front outer cylinder and the first rear outer cylinder have the same rotation center axis, and a ratio of a length of the first rear outer cylinder to a length of the first front outer cylinder in a direction parallel to the rotation center axis of the first outer cylinder is in a range of 5 to 1.

In some embodiments, further comprising: the first hanging springs are respectively arranged on the left side and the right side of the first outer cylinder, at least two first hanging springs are third hanging springs, first ends of the third hanging springs are arranged on the first rear outer cylinder, and second ends of the third hanging springs are arranged on the frame.

In some embodiments, two or more second hanging springs are respectively disposed at left and right sides of the second rear outer barrel, at least two of the second hanging springs are fourth hanging springs, a first end of each of the fourth hanging springs is connected to the second rear outer barrel, and a second end of each of the fourth hanging springs is connected to the frame.

In some embodiments, the drum washing machine further includes more than two first dampers respectively located at left and right sides of the first outer tub, at least two of the first dampers are third dampers, a first end of the third damper is connected to the frame, and a second end of the third damper is connected to the first rear outer tub.

In some embodiments, the drum washing machine further includes more than two second dampers respectively located at the left and right sides of the second outer tub, at least the second dampers being fourth dampers, a first end of the fourth dampers being connected to the frame, and a second end of the fourth dampers being connected to the second rear outer tub.

In some embodiments, the first shock absorbers are provided in three; two of the three first shock absorbers are positioned on the left side and the right side of the first rear outer cylinder, and the other one of the three first shock absorbers is positioned on the first front outer cylinder.

In some embodiments, the first shock absorbers are provided in four; two of the four first shock absorbers are positioned on the left side and the right side of the first rear outer cylinder, and the other two first shock absorbers are positioned on the left side and the right side of the first front outer cylinder.

In some embodiments, the third damper includes an elastic damper or a damping damper provided to an underside of the first rear outer cylinder.

In some embodiments, the first front outer barrel and the first rear outer barrel are secured by fasteners; a plurality of fasteners are arranged along the circumferential direction of the first outer cylinder; wherein, the fastener is any one of the following: screws, pins, bolts.

In some embodiments, a counterweight is disposed on the first front outer barrel; the balancing weight is arranged on one side, far away from the first rear outer barrel, of the first front outer barrel.

In some embodiments, further comprising: the driving motor is arranged on the first rear outer barrel; the ratio of the force transmitted to the first rear outer cylinder by the power of the drive motor to the force transmitted to the first front outer cylinder is 50% or more.

In some embodiments, further comprising: the two first hanging springs are respectively arranged on two sides of the first outer cylinder; the two second hanging springs are respectively arranged on two sides of the second outer cylinder; a frame comprising a front vertical beam and a rear vertical beam; the shortest distance between the first hanging spring and the plane where the front vertical beam is located is smaller than the shortest distance between the second hanging spring and the plane where the front vertical beam is located.

In some embodiments, the second outer barrel comprises a second front outer barrel and a second rear outer barrel, the second front outer barrel is connected with the first front outer barrel through a first connecting piece, and the second front outer barrel, the first front outer barrel and the first connecting piece are integrally formed; and/or the second rear outer cylinder is connected with the first rear outer cylinder through a second connecting piece, and the second rear outer cylinder, the first rear outer cylinder and the second connecting piece are integrally formed; a ratio of a length of the second rear outer cylinder to a length of the second front outer cylinder in a direction parallel to the rotational center axis of the second outer cylinder is in a range of 5 to 1. The technical scheme provided by the embodiment of the utility model can have the following beneficial effects: the length of the rear outer cylinder is longer than that of the front outer cylinder, so that the strength of the rear outer cylinder is guaranteed, the damping device can be mounted on the rear outer cylinder to support the rear outer cylinder, larger vibration of the rear outer cylinder is inhibited, noise is reduced, and running stability of the drum washing machine is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic view illustrating a frame structure of a drum washing machine according to an exemplary embodiment.

Fig. 2 is a schematic view of the structure of the outer tub shown according to an exemplary embodiment.

Fig. 3 is a schematic structural view illustrating a shock-absorbing device according to an exemplary embodiment.

Fig. 4 is a schematic structural view of a first outer tub and a second outer tub shown according to an exemplary embodiment.

Fig. 5 is a schematic structural view of a first outer tub and a second outer tub shown according to another exemplary embodiment.

Fig. 6 is a perspective view illustrating a first outer tub and a second outer tub according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model, as detailed in the appended claims.

Fig. 1 is a schematic view illustrating a frame structure of a drum washing machine according to an exemplary embodiment. Fig. 2 is a schematic view of the structure of the outer tub shown according to an exemplary embodiment. Fig. 3 is a schematic structural view illustrating a shock-absorbing device according to an exemplary embodiment. Fig. 4 is a schematic structural view of a first outer tub and a second outer tub shown according to an exemplary embodiment.

As shown in fig. 1 to 4, the drum washing machine of the present disclosure includes a frame 10, a casing, an outer tub 30, and a door.

The frame 10 is surrounded by a casing as an external appearance, and the frame 10 and the casing protect internal devices. The frame 10 supports the outer tub 30 within the housing.

As shown in fig. 4, the outer cylinder 30 includes a first outer cylinder 31, and the first outer cylinder 31 may be supported on the frame 10 by a damping device. The first outer tub 31 is communicated with a water filling port of the drum washing machine, and external tap water is filled into the first outer tub 31 through the water filling port. The first outer cylinder 31 is cylindrical, the first outer cylinder 31 is sleeved outside the inner cylinder, and a placing opening is formed in front of the first outer cylinder 31 and the inner cylinder and used for placing or taking out clothes. Wherein, the inner tub is used for placing the clothes, and the inner tub has a plurality of water inlet holes, so that the water in the first outer tub 31 invades into the inner tub through the water inlet holes, thereby soaking the clothes. The inner drum is connected with a driving motor, the driving motor is arranged at the rear end of the first outer drum 31, and the driving motor rotates to drive the inner drum to roll so as to drive the clothes to rub against the inner drum, so that the clothes are washed.

The first outer cylinder 31 includes a first front outer cylinder 312 and a first rear outer cylinder 311 connected to the first front outer cylinder 312, wherein a placing opening for placing or taking out the laundry is opened in the first front outer cylinder 312. The side close to the door is the first front outer cylinder 312 and the side far from the door is the first rear outer cylinder 311. The first front outer cylinder 312 and the first rear outer cylinder 311 have the same rotation center axis, and the first front outer cylinder 312 and the first rear outer cylinder 311 may be fixed by a fastener, for example, a screw, a bolt, a pin, or the like, or may be fixed by ultrasonic welding. Wherein the plurality of fastening members may be symmetrically disposed with respect to the center of the first outer cylindrical barrel 31 in the circumferential direction of the first outer cylindrical barrel 31.

The ratio of the length of the first rear outer cylinder 311 to the length of the first front outer cylinder 312 in a direction parallel to the rotational center axis of the first outer cylinder 31 is in the range of 5 to 1. The direction parallel to the rotational center axis of the first outer cylinder 31 is the depth direction of the outer cylinder 30, the length of the first rear outer cylinder 311 is also the depth of the first rear outer cylinder 311, and the length of the first front outer cylinder 312 is also the depth of the first front outer cylinder 312, that is, the depth of the first rear outer cylinder 311 is greater than or equal to the depth of the first front outer cylinder 312.

In one example, the ratio of the length of the first rear outer cylinder 311 to the length of the first front outer cylinder 312 may be 4, i.e., the depth of the first rear outer cylinder 311 is 4 times the depth of the first front outer cylinder 312. Since the driving motor is installed on the first rear outer cylinder 311, the first rear outer cylinder 311 needs to bear a large force, and the ratio of the force transmitted to the first rear outer cylinder 311 by the driving motor to the force transmitted to the first front outer cylinder 312 is more than 50%, in order to ensure the strength of the first rear outer cylinder 311, the size of the first rear outer cylinder 311 needs to be larger, and the size of the first front outer cylinder 312 needs to be reduced, so that the strength of the first rear outer cylinder 311 is ensured by properly adjusting the size ratio of the first front outer cylinder 312 to the first rear outer cylinder 311 on the premise of not affecting the size of the whole first outer cylinder 31. Further, since the first rear outer cylinder 311 is increased in size and strength, the damper means for supporting the first outer cylinder 31, for example, the suspension spring 51, the damper 52, and the like, can be attached to the first rear outer cylinder 311, and the first rear outer cylinder 311 receives a larger supporting force.

As described above, since the driving motor is usually located on the first rear outer cylinder 311, the driving force generated when the driving motor rotates is firstly transmitted to the first rear outer cylinder 311, and the first rear outer cylinder 311 generates large vibration, in the embodiment of the present disclosure, since the length of the first outer cylinder 312 is longer than that of the first front outer cylinder 312, the strength of the first rear outer cylinder 311 is guaranteed, and the damping device may be installed on the first rear outer cylinder 311 to support the first rear outer cylinder 311, so as to suppress the large vibration of the first rear outer cylinder 311, reduce noise, and improve the running stability of the drum washing machine.

In some embodiments, the damping device may include more than two first hanging springs 51 respectively disposed at the left and right sides of the first outer cylinder, at least two first hanging springs are third hanging springs 511, a first end (lower end) of the third hanging springs 511 is connected to the first rear outer cylinder 311, and a second end (upper end) of the third hanging springs 511 is connected to the frame 10. The third hanging spring 511 applies an upward pulling force to the first rear outer cylinder 311, and has a damping effect on the first outer cylinder 31. The first rear outer cylinder 311 has an upward hanging lug on the outer wall thereof, a first end of the third hanging spring 511 is connected to the inside of the hanging lug, and a second end of the third hanging spring 511 can be connected to a cross member of the frame 10. Further, a reinforcing plate may be provided on the cross member of the frame 10, and the second end of the third hanging spring 511 is connected to the reinforcing plate.

In some embodiments, the first hanging spring 51 may further include at least two fifth hanging springs respectively disposed at both sides of the first front outer cylinder 312, and a first end (lower end) of the fifth hanging spring is connected to the first front outer cylinder 312 and a second end (upper end) of the fifth hanging spring is connected to the frame 10. For example, the first hanging spring 51 may be four, two of which are the fifth hanging springs and two of which are the third hanging springs 511.

The damper device may further include more than two first dampers 52 respectively located at left and right sides of the first outer cylinder 31, at least two first dampers being third dampers 523, a first end (lower end) of the third damper 523 being connected to the frame 10, and a second end of the third damper 523 being connected to the first rear outer cylinder 311. The third damper 523 gives a supporting force to the rear outer cylinder in an upward direction, and the third damper 523 engages with the third hanging spring 511 to keep the first outer cylinder 31 in balance. A hanging lug may be disposed on the outer wall of the first rear outer cylinder 311, and a second end of the third damper 523 is pivotally connected to the hanging lug through a pin or a bolt. A reinforcing member may be disposed on the frame 10, and a first end of the third damper 523 is pivotally connected to the reinforcing member through a pin or a bolt. The reinforcement may be provided at a bottom beam or a floor of the frame 10.

In some embodiments, the drum washing machine is a twin drum washing machine, wherein the tub 30 further includes a second tub 32 disposed in the frame 10, the second tub 32 being located at an upper side of the first tub 31. The first outer barrel 31 is at the bottom and the second outer barrel 32 is at the top, wherein the volume of the first outer barrel 31 can be larger than the volume of the second outer barrel 32. The first outer cylinder 31 has a first front outer cylinder 312 and a first rear outer cylinder 311. The second outer cylinder 32 has a second front outer cylinder 322 and a second rear outer cylinder 321.

In one example, the first dampers 52 are provided in three; wherein two of the three first dampers are located at the left side of the first rear outer cylinder 311 and the other is located at the right side of the first rear outer cylinder, or two of the three first dampers 52 are located at the right side of the first rear outer cylinder 311 and the other is located at the left side of the first rear outer cylinder 311. For example, the first damper 52 includes three third dampers 523, two left third dampers and one right third damper, the two left third dampers are supported on the left side of the first rear outer cylinder 311, the one right third damper is supported on the right side of the first rear outer cylinder 311, and the right third damper is located between the left first dampers in a direction parallel to the rotation center of the first outer cylinder 31.

In another example, the first dampers 52 are provided in four, each of the third dampers 523; two of the four third dampers 523 are located on the left side of the first rear outer cylinder 311, the other two third dampers are located on the right side of the first rear outer cylinder, and the left and right third dampers 523 are symmetrical with respect to the longitudinal center line of the first rear outer cylinder. The symmetrical third shock absorbers 523 are arranged on the left side and the right side of the first rear outer barrel respectively to support the first outer barrel respectively, so that the supporting force of the outer barrel is more balanced, and the supporting strength is higher.

The first and second shock absorbers 51 and 52 may be elastic shock absorbers or damping shock absorbers. The elastic damper can change the instant force of the outer cylinder 30, and has an obvious supporting effect.

In some embodiments, a weight is disposed on the first front outer cylinder 312 of the outer cylinder 30, and the weight is disposed on a side of the first front outer cylinder 312 away from the first rear outer cylinder 311. The counterweight force required by the first front outer cylinder 312 is smaller on the side farther from the first rear outer cylinder 311, so that the required counterweight block is smaller in volume, the cost is reduced, and the occupied space is reduced, thereby being beneficial to the arrangement of other components.

In some embodiments, in the circumferential direction of the first outer cylinder (lower outer cylinder), the first end of the first hanging spring on one side (left side) of the first outer cylinder 31 is disposed in a range of more than 0 degrees and less than 90 degrees, and the first end of the first hanging spring on the other side (right side) of the first outer cylinder is disposed in a range of more than 270 degrees and less than 360 degrees, wherein 0 degrees coincides with the longitudinal center line of the first outer cylinder and points upward.

Since the first tub 31 vibrates up and down and left and right during the rotation of the drum washing machine, when the first end of the left first hanging spring is at 0 degree and the first end of the right first hanging spring is at 270 degrees, the vibration of the first tub in the left and right directions cannot be effectively suppressed. When the first end of the first hanging spring on the left side is located at 90 degrees and the first end of the first hanging spring on the right side is located at 360 degrees, the vibration of the first outer cylinder in the vertical direction cannot be effectively inhibited. Therefore, in the embodiment, the first end of the left first hanging spring is arranged in the range of more than 0 degrees and less than 90 degrees, and the first end of the right first hanging spring is arranged in the range of more than 270 degrees and less than 360 degrees, so that the vibration of the first outer cylinder in the vertical and horizontal directions can be effectively inhibited, and the stability of the first outer cylinder is improved.

In one example, in the circumferential direction of the outer cylinder, the first end of the first hanging spring on one side (left) is disposed in a range of 30 degrees to 60 degrees, and the first end of the first hanging spring on the other side is disposed in a range of 300 degrees to 330 degrees, in the clockwise direction. In this range, the first hanging spring can suppress the vertical and horizontal vibrations of the first outer cylinder 31 at the same time, and the effect is remarkable.

In the circumferential direction of the first outer cylinder 31, along the clockwise direction, the second end of the first damper on one side of the first outer cylinder 31 is disposed in a range greater than 90 degrees and less than 180 degrees, and the second end of the first damper on the other side of the first outer cylinder 31 is disposed in a range greater than 180 degrees and less than 270 degrees, wherein 0 degree coincides with the longitudinal center line of the first outer cylinder and points upward.

Since the first outer tub 31 may generate vertical vibration and horizontal vibration during the rotation of the drum washing machine, when the first end of the first damper on the left side is located at 0 degree and the first end of the first damper on the right side is located at 270 degrees, the horizontal vibration of the first outer tub cannot be effectively suppressed. The first end of the first shock absorber on the left side is located at 90 degrees, and when the first end of the first shock absorber on the right side is located at 360 degrees, the vibration of the first outer barrel in the up-and-down direction cannot be effectively inhibited. Therefore, in the embodiment, the first end of the first damper on the left side is arranged in the range larger than 0 degree and smaller than 90 degrees, and the first end of the first damper on the right side is arranged in the range larger than 270 degrees and smaller than 360 degrees, so that the vibration of the first outer cylinder in the vertical and horizontal directions can be effectively inhibited, and the stability of the first outer cylinder is improved.

In one example, in the circumferential direction of the second outer cylinder 32, the second end of the first damper on one side of the second outer cylinder 32 is disposed in a range of more than 120 degrees and less than 150 degrees, and the second end of the second damper on the other side of the second outer cylinder 32 is disposed in a range of more than 210 degrees and less than 240 degrees, along the clockwise direction. In this range, the first damper can suppress the vertical and horizontal vibrations of the first outer cylinder at the same time, and the effect is remarkable.

In one example, the second end of the third damper 523 is located between the center of the first rear outer cylinder 311 and the front end of the first rear outer cylinder 311 in a direction parallel to the rotational center axis of the first outer cylinder 31.

In one example, the two or more third dampers 523 are disposed symmetrically with respect to the longitudinal center line of the first outer cylinder 31.

In some embodiments, the hanging springs further include two second hanging springs respectively disposed at left and right sides of the second outer barrel 32, at least two second hanging springs are fourth hanging springs 512, a first end of the fourth hanging springs 512 is connected to the second rear outer barrel 321, and a second end of the fourth hanging springs 512 is connected to the frame 10.

In some embodiments, the second hanging spring may further include at least two sixth hanging springs respectively disposed at both sides of the second front outer cylinder 322, and first ends (lower ends) of the sixth hanging springs are connected to the second front outer cylinder 322 and second ends (upper ends) of the sixth hanging springs are connected to the frame 10. For example, the second hanging spring may be four, two of which are the sixth hanging springs and two of which are the fourth hanging springs 512.

In the circumferential direction of the second outer cylinder 32, along the clockwise direction, the first end of the second hook spring on one side (left side) is disposed in a range greater than 0 degrees and less than 90 degrees, and the first end of the first hook spring on the other side is disposed in a range greater than 270 degrees and less than 360 degrees, wherein 0 degrees coincides with the longitudinal center line of the second outer cylinder, and points upward. As described above, since the second outer tub 32 vibrates up and down and left and right during the rotation of the drum washing machine, when the first end of the left second hanging spring is located at 0 degree and the first end of the right second hanging spring is located at 270 degrees, the vibration of the second outer tub 32 in the left and right directions cannot be effectively suppressed. When the second end of the second hanging spring on the left side is located at 90 degrees and the second end of the second hanging spring on the right side is located at 360 degrees, the vibration in the up-and-down direction of the second outer tube 32 cannot be effectively suppressed. Therefore, in the embodiment, the second end of the left second hanging spring is arranged in the range of more than 0 degree and less than 90 degrees, and the first end of the right second hanging spring is arranged in the range of more than 270 degrees and less than 360 degrees, so that the vibration of the second outer cylinder in the vertical and horizontal directions can be effectively inhibited, and the stability of the second outer cylinder is improved.

In one example, in the circumferential direction of the second outer tube 32, the first end of the second hanging spring on one side (left side) is disposed in a range of 30 degrees to 60 degrees, and the first end of the second hanging spring on the other side is disposed in a range of 300 degrees to 330 degrees, in the clockwise direction. As described above, in this range, the second hanging spring can suppress the vibration of the second outer cylinder 32 in the vertical and horizontal directions at the same time, and the effect is remarkable.

In some embodiments, the dampers further include more than two second dampers disposed at the left and right sides of the second outer barrel 32, respectively, at least two second dampers are fourth dampers 524, a first end of the fourth damper 524 is connected to the frame 10, and a second end of the fourth damper 524 is connected to the second rear outer barrel 321. A second reinforcing member 53 may be disposed on the frame 10, and a first end of the fourth damper 524 is pivotally connected to the second reinforcing member 53. A second damper 522 may also be provided between the second front outer cylinder 322 and the frame 10.

In the circumferential direction of the second outer cylinder, along the clockwise direction, the second end of the second damper on one side of the second outer cylinder 32 is disposed in a range of more than 90 degrees and less than 180 degrees, and the second end of the second damper on the other side of the second outer cylinder 32 is disposed in a range of more than 180 degrees and less than 270 degrees, wherein 0 degree coincides with the longitudinal center line of the second outer cylinder 32 and points upward.

As the first outer tub 31 and the first damper are engaged with each other, when the second outer tub 32 vibrates vertically and horizontally during the rotation of the drum washing machine, the first end of the left second damper is at 0 degree, and the first end of the right second damper is at 270 degrees, the vibration of the second outer tub 32 in the horizontal direction cannot be effectively suppressed. The first end of the second shock absorber on the left side is located at 90 degrees, and when the first end of the second shock absorber on the right side is located at 360 degrees, the vibration of the second outer cylinder in the up-and-down direction cannot be effectively inhibited. Therefore, in the embodiment, the first end of the left second damper is arranged in the range larger than 0 degree and smaller than 90 degrees, and the first end of the right second damper is arranged in the range larger than 270 degrees and smaller than 360 degrees, so that the vibration of the second outer cylinder in the vertical and horizontal directions can be effectively inhibited, and the stability of the second outer cylinder is improved.

In one example, in the circumferential direction of the second outer cylinder 32, the second end of the second damper of one side of the second outer cylinder 32 is disposed in a range of 120 degrees to 150 degrees, and the second end of the second damper of the other side of the second outer cylinder 32 is disposed in a range of 210 degrees to 240 degrees, in the clockwise direction. In this range, the second damper can suppress the vertical and horizontal vibrations of the second outer cylinder 32 at the same time, and the effect is remarkable.

In one example, the first end of the fourth damper 524 is located between the center of the second outer cylinder 32 and the front end of the second rear outer cylinder in a direction parallel to the rotational center axis of the second outer cylinder 32.

In one example, two or more fourth dampers 524 are symmetrically disposed with respect to a longitudinal centerline of the second outer barrel 32.

In some embodiments, the third suspension spring is inclined with respect to a longitudinal section of the first rear outer cylinder; and/or the fourth hanging spring is inclined relative to the longitudinal section of the second rear outer cylinder. For example, the third hanging springs on both sides of the first rear outer cylinder 311 may be inclined in a direction approaching each other or inclined in a direction separating from each other. The fourth hanging springs on both sides of the second rear outer cylinder 321 may be inclined in a direction to approach each other or in a direction to separate from each other. The third hanging spring arranged obliquely can effectively restrain the vibration of the first outer cylinder in the front-back direction and the left-right direction. The fourth hanging spring arranged obliquely can effectively restrain the vibration of the second outer cylinder in the front-back direction and the left-right direction.

In some embodiments, the third damper is inclined with respect to the longitudinal section of the first rear outer cylinder 311; and/or the fourth damper is inclined with respect to the longitudinal section of the second rear outer cylinder 321. For example, the third dampers on both sides of the first rear outer cylinder 311 may be inclined toward the direction of approaching the batch each other, respectively. The fourth dampers at both sides of the second rear outer cylinder 321 may be inclined toward the direction of approaching the batch each other, respectively. The third damper arranged obliquely can effectively suppress the vibration of the first outer cylinder in the front-back direction and the left-right direction. The fourth shock absorber that the slope set up can effectively restrain the vibration of second outer tube front and back and left and right sides direction.

In some embodiments, the number of dampers is 3 to 10, and the number of dampers may be more than one. For example, the first outer cylinder and the second outer cylinder are of an integral structure, the number of the shock absorbers can be 4, the four shock absorbers are all the first shock absorbers, and the first outer cylinder and the second outer cylinder can be supported by the 4 first shock absorbers arranged on the first outer cylinder. Or, the first outer cylinder and the second outer cylinder are of an integral structure, the number of the shock absorbers can be 3, 3 shock absorbers are all the first shock absorbers, and the first outer cylinder and the second outer cylinder can be supported by 3 first shock absorbers 521 arranged on the first outer cylinder.

For another example, the first outer cylinder and the second outer cylinder are separate bodies, the number of the dampers may be 6, 4 of the 6 dampers may be the first damper, 2 may be the second damper, the first outer cylinder may be supported by the 4 first dampers, and the second outer cylinder may be supported by the 2 second dampers. Or 3 of the 6 dampers are first dampers, 3 of the 6 dampers are second dampers, the first outer cylinder is supported by the 3 first dampers, and the second outer cylinder is supported by the 3 second dampers. Or, the number of bumper shock absorbers can be 4, 2 of 4 bumper shock absorbers are first bumper shock absorbers, 2 are second bumper shock absorbers, the first outer cylinder supports through 2 first bumper shock absorbers, the second outer cylinder supports through 2 second bumper shock absorbers. Alternatively, the number of the dampers may be 5, 3 of the 5 dampers may be first dampers, and 2 may be second dampers, the first outer cylinder being supported by the 3 first dampers, and the second outer cylinder being supported by the 2 second dampers.

In some embodiments, further comprising: two first hanging springs respectively disposed at both sides of the first outer cylinder 31; two second hanging springs respectively disposed at both sides of the second outer tube 32; a frame 10 comprising a front vertical beam 11 and a rear vertical beam 12; the shortest distance between the first hanging spring and the plane where the front vertical beam 11 is located is smaller than the shortest distance between the second hanging spring and the plane where the front vertical beam 11 is located. In other words, the first hanging spring is closer to the front than the second hanging spring. Since the first outer cylinder 31 is provided with a counterweight block and the second outer cylinder 32 has no counterweight block, the first hanging spring of the first outer cylinder 31 can be closer to the front than the second hanging spring, so that the first outer cylinder 31 can be better balanced, and the second hanging spring of the second outer cylinder 32 can be closer to the rear than the first hanging spring, so that the second outer cylinder 32 can be better balanced.

In some embodiments, as shown in fig. 5 and 6, the second outer cylinder 32 includes a second front outer cylinder 322 and a second rear outer cylinder 321, the second front outer cylinder 322 is connected with the first front outer cylinder 312 through the first connecting member 33-1, and the second front outer cylinder 322, the first front outer cylinder 312 and the first connecting member 33-1 are integrally formed; and/or the second rear outer cylinder 321 is connected with the first rear outer cylinder 311 through a second connecting piece 33-2, and the second rear outer cylinder 321, the first rear outer cylinder 311 and the second connecting piece 33-2 are integrally formed. A first end of the fourth hanging spring 512 is connected to the second rear outer cylinder 321 of the second outer cylinder 32, and a second end of the fourth hanging spring 512 is connected to the frame 10. The first outer cylinder 31 and the second outer cylinder 32 are connected together, the two cylinders can be mutually balanced, when one cylinder is eccentric and large, the other cylinder can reduce the vibration amplitude by using the self weight, and the function of a configuration block is achieved, so that the vibration amplitude of the whole machine is reduced. Therefore, the additional addition of a balancing weight is not needed, and the weight of the whole machine can be reduced.

The integrally formed first front outer cylinder 312 and second front outer cylinder 322, and the integrally formed first rear outer cylinder 311 and second rear outer cylinder 321 are convenient to install, installation procedures for installing the two cylinders are reduced, and efficiency is improved.

The connecting member integrally formed between the first outer tube 31 and the second outer tube 32 utilizes the space between the first outer tube 31 and the second outer tube 32, and the size of the whole machine can be reduced.

The ratio of the length of the second rear outer cylinder 321 to the length of the second front outer cylinder 322 in a direction parallel to the rotational center axis of the second outer cylinder 32 is in the range of 5 to 1. The direction parallel to the rotational center axis of the second outer cylinder 32 is the depth direction of the outer cylinder 30, the length of the second rear outer cylinder 321 is also the depth of the second rear outer cylinder 321, and the length of the second front outer cylinder 322 is also the depth of the second front outer cylinder 322, that is, the depth of the second rear outer cylinder 321 is greater than or equal to the depth of the second front outer cylinder 322. For example, a hanging spring may be mounted on the second rear outer cylinder 321, and receive more supporting force through the second rear outer cylinder 321. Since the length of the second rear outer tub 321 is longer than the length of the second front outer tub 322, the strength of the second rear outer tub 321 is guaranteed, and the hanging spring can be mounted on the second rear outer tub 321 to support the second rear outer tub 321, so as to suppress large vibration of the second rear outer tub 321, reduce noise, and improve the running stability of the drum washing machine.

In the case where the first outer cylinder 31 and the second outer cylinder 32 are connected to each other and integrally formed, a damper may be provided between the first outer cylinder 31 and the frame 10 without providing a damper between the second outer cylinder 32 and the frame 10, and a hook spring may be provided between the second outer cylinder 32 and the frame 10 without providing a hook spring between the first outer cylinder 31 and the frame 10. The first outer cylinder and the second outer cylinder are supported by the damper on the first outer cylinder 31 and the hanging spring on the second outer cylinder 32, so that the cost can be saved, the assembly procedures can be reduced, the assembly is convenient, and the stable support can be achieved. It is to be understood that the term "plurality" as used herein refers to two or more, and other terms are intended to be analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is only limited by the scope of the appended claims.

Claims (13)

1. A drum washing machine characterized by comprising:

the frame is provided with a plurality of frame bodies,

a first outer cylinder arranged in the frame, the first outer cylinder comprises a first front outer cylinder and a first rear outer cylinder connected with the first front outer cylinder,

the second outer cylinder is arranged in the frame and is arranged at the upper part of the first outer cylinder;

wherein the first front outer cylinder and the first rear outer cylinder have the same rotation central axis,

a ratio of a length of the first rear outer cylinder to a length of the first front outer cylinder in a direction parallel to the rotational center axis of the first outer cylinder is in a range of 5 to 1.

2. A drum washing machine according to claim 1, characterized by further comprising:

the first hanging springs are respectively arranged on the left side and the right side of the first outer cylinder, at least two first hanging springs are third hanging springs, first ends of the third hanging springs are arranged on the first rear outer cylinder, and second ends of the third hanging springs are arranged on the frame.

3. A drum washing machine according to claim 2, characterized by further comprising:

the two or more second hanging springs are respectively arranged on the left side and the right side of the second outer cylinder, at least two of the second hanging springs are fourth hanging springs, the first ends of the fourth hanging springs are connected to the second outer cylinder, and the second ends of the fourth hanging springs are connected to the frame.

4. A drum washing machine according to claim 2,

the drum washing machine further comprises more than two first shock absorbers which are respectively positioned at the left side and the right side of the first outer drum, at least two first shock absorbers are third shock absorbers, the first ends of the third shock absorbers are connected to the frame, and the second ends of the third shock absorbers are connected to the first rear outer drum.

5. A drum washing machine according to claim 4,

the drum washing machine further comprises more than two second shock absorbers which are respectively positioned at the left side and the right side of the second outer drum, at least the second shock absorbers are fourth shock absorbers, the first ends of the fourth shock absorbers are connected to the frame, and the second ends of the fourth shock absorbers are connected to the second outer drum.

6. A drum washing machine according to claim 4,

the number of the first shock absorbers is three;

two of the three first shock absorbers are positioned on the left side and the right side of the first rear outer cylinder, and the other one of the three first shock absorbers is positioned on the first front outer cylinder.

7. A drum washing machine according to claim 4,

the number of the first shock absorbers is four;

two of the four first shock absorbers are positioned on the left side and the right side of the first rear outer cylinder, and the other two first shock absorbers are positioned on the left side and the right side of the first front outer cylinder.

8. A drum washing machine according to claim 4,

the third damper includes an elastic damper or a damping damper provided at a lower side of the first rear outer cylinder.

9. A drum washing machine according to claim 1,

the first front outer cylinder and the first rear outer cylinder are fixed through a fastener;

a plurality of fasteners are arranged along the circumferential direction of the first outer cylinder;

wherein, the fastener is any one of the following: screws, pins, bolts.

10. A drum washing machine according to claim 1,

a balancing weight is arranged on the first front outer cylinder;

the balancing weight is arranged on one side, far away from the first rear outer barrel, of the first front outer barrel.

11. A drum washing machine according to claim 1, characterized by further comprising:

the driving motor is arranged on the first rear outer barrel;

the ratio of the force transmitted to the first rear outer cylinder by the power of the drive motor to the force transmitted to the first front outer cylinder is 50% or more.

12. A drum washing machine according to claim 1, characterized by comprising:

the two first hanging springs are respectively arranged on two sides of the first outer cylinder;

the two second hanging springs are respectively arranged on two sides of the second outer cylinder;

a frame comprising a front vertical beam and a rear vertical beam;

the shortest distance between the first hanging spring and the plane where the front vertical beam is located is smaller than the shortest distance between the second hanging spring and the plane where the front vertical beam is located.

13. A drum washing machine according to claim 3,

the second outer cylinder comprises a second front outer cylinder and a second rear outer cylinder, the second front outer cylinder is connected with the first front outer cylinder through a first connecting piece, and the second front outer cylinder, the first front outer cylinder and the first connecting piece are integrally formed; and/or the second rear outer cylinder is connected with the first rear outer cylinder through a second connecting piece, and the second rear outer cylinder, the first rear outer cylinder and the second connecting piece are integrally formed;

a ratio of a length of the second rear outer cylinder to a length of the second front outer cylinder in a direction parallel to the rotational center axis of the second outer cylinder is in a range of 5 to 1.

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