CN-121992624-A - Vibration damping device and clothes treatment equipment

CN121992624ACN 121992624 ACN121992624 ACN 121992624ACN-121992624-A

Abstract

The application belongs to the technical field of clothes treatment, and particularly relates to a vibration damper and clothes treatment equipment, wherein the vibration damper comprises a suspender and also comprises a first moving part, a second moving part and a first moving part, wherein the first moving part comprises a first main body part; and the second moving part comprises a second main body part and a second connecting part, the second main body part is in pivot connection with the first main body part, so that the second moving part and the first moving part can relatively rotate in a preset angle to generate damping force, the second connecting part comprises a body part with a through hole, the second connecting part is sleeved on the outer peripheral side of the suspender through the through hole, and the first elastic part and the second elastic part of the body part, which are positioned on the two sides of the central connecting line of the second main body part and the through hole, can elastically deform. The application can lead the stress of the part of the vibration damper connected with the suspension rod to be uniform, reduce the possibility of fatigue failure of the vibration damper and prolong the service life of the vibration damper.

Inventors

XIONG LINING
SHI YACHENG
FAN JIANFENG
JIANG YUANHUI
WANG JIA

Assignees

无锡美芝电器有限公司

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (15)

1. A vibration damping device for use in a laundry treating apparatus, the vibration damping device comprising a boom, the vibration damping device further comprising: A first moving member including a first main body portion, and The second moving part comprises a second main body part and a second connecting part connected with the second main body part, the second main body part is in pivot connection with the first main body part, the second connecting part comprises a body part with a through hole, the second connecting part is sleeved on the periphery side of the suspender through the through hole, and the first elastic part and the second elastic part, which are positioned on the two sides of the central connecting line of the second main body part and the through hole, of the body part can be elastically deformed.
2. The vibration damping device according to claim 1, wherein the body portion includes an inner peripheral structure and an outer peripheral structure, the inner peripheral structure forming the through hole, the outer peripheral structure being provided at intervals on an outer peripheral side of the inner peripheral structure, a plurality of reinforcing ribs being connected between the inner peripheral structure and the outer peripheral structure, and a through groove being formed between two adjacent reinforcing ribs.
3. The vibration damping device according to claim 2, wherein a plurality of the reinforcing ribs and a plurality of the through grooves are located on both sides of the center line, and the first elastic portion and the second elastic portion each include the through groove.
4. The vibration damping device according to claim 2, wherein a transition portion is connected between the second main body portion and the outer peripheral structure, and a part of the outer peripheral structure corresponding to the through groove is indirectly connected to the transition portion.
5. The vibration damping device according to claim 2, wherein the outer peripheral structure, the plurality of reinforcing ribs and the plurality of through grooves are symmetrically arranged with respect to the center line.
6. The vibration damping device according to claim 4, wherein the plurality of through grooves includes a first through groove and a second through groove, a distance between the first through groove and the center line is greater than a distance between the second through groove and the center line, and a length of the first through groove in a circumferential direction is greater than a length of the second through groove in the circumferential direction; the transition part is located the both sides of center line are provided with respectively first logical groove and the second logical groove, wherein, first logical groove corresponds the part of periphery structure with the transition part indirect connection.
7. The vibration damping device according to any one of claims 1 to 6, wherein the through hole is provided with an opening in a circumferential direction, the opening being provided at a predetermined angle between a center line in the circumferential direction and the center line; The second connecting portion further comprises an anti-falling portion connected with the body portion, the anti-falling portion is arranged on one side, away from the second main body portion, of the body portion and is connected with the opening, and a guide channel communicated with the through hole is formed in the anti-falling portion.
8. The vibration damping device according to claim 7, wherein the preset angle is 0 ° or greater than-45 ° and less than 45 °.
9. The vibration damping device according to claim 7, wherein the drop-preventing portion includes an extension portion and a bending portion which are disposed at an interval to form the guide passage, the extension portion is formed by one end of the opening extending outwardly in a direction parallel to the center line, the bending portion is formed by the other end of the opening bending around the extension portion, the guide passage includes a first passage, a second passage and a third passage which are disposed in order and formed in a U-shaped structure, the first passage is connected with the through hole, and the third passage is tapered in a direction away from the second passage.
10. The vibration damping device according to claim 9, wherein the bending portion includes a first bead portion and a second bead portion provided on an outer peripheral side of the first bead portion, and the first bead portion is bent around the protruding portion, and a thickness of the second bead portion is smaller than a thickness of the first bead portion.
11. The vibration damping device according to claim 4, wherein a first limit table and a second limit table are respectively connected to both sides of the transition portion on the outer peripheral side of the second main body portion, the first limit table being located on one side of the center line, the second limit table being located on the other side of the center line; The first moving part further comprises a first connecting part connected with the first main body part, a third limiting table extending along the circumferential direction is arranged on one side, away from the first connecting part, of the first main body part, a fourth limiting table extending along the circumferential direction is arranged on one side, facing the first connecting part, of the first main body part, when the second moving part rotates by a first angle along a first direction relative to the first moving part, the first limiting table is abutted to the third limiting table, when the second moving part rotates by a second angle along a second direction relative to the first moving part, the second limiting table is abutted to the fourth limiting table, the first direction is opposite to the second direction, and the sum of the first angle and the second angle is smaller than 180 degrees.
12. The vibration damping device according to claim 11, wherein a fifth limit table connected to the second limit table is further provided on an outer peripheral side of the second main body portion, an outer diameter of the fifth limit table is smaller than an inner diameter of the fourth limit table, a first foolproof angle is formed between the first limit table and the fifth limit table on one side of the transition portion, and a second foolproof angle is formed between the third limit table and the fourth limit table outside a rotation angle of the second moving member with respect to the first moving member, the first foolproof angle being larger than the second foolproof angle.
13. The vibration damping device according to any one of claims 1 to 6, further comprising a damping member provided at a rotational connection of the first and second moving members for providing a damping force upon relative rotation of the first and second moving members.
14. The vibration damper according to claim 13, wherein the damping member is an annular structural member, a gap is provided in the circumferential direction of the damping member, the second main body portion has a receiving cavity, a stop rib is provided on a side wall of the receiving cavity, the damping member is accommodated in the receiving cavity, and the gap is connected with the stop rib in a clamping manner; the first main body part is provided with a convex column matched with the damping piece, and the first main body part is in pivot connection with the second main body part through the convex column.
15. A laundry treatment apparatus, comprising: A case; a cylinder assembly disposed in the case, and A vibration damping device as claimed in any one of claims 1 to 14 disposed between the housing and the cartridge assembly.

Description

Vibration damping device and clothes treatment equipment Technical Field The present application relates to the field of laundry treatment technology, and more particularly, to a vibration damping device and a laundry treatment apparatus. Background Currently, a common laundry treatment apparatus, such as a pulsator washing machine, generally includes a cabinet and a drum assembly provided in the cabinet, the drum assembly including an outer drum and an inner drum rotatably provided in the outer drum, the outer drum being suspended inside the cabinet by a vibration damping device composed of a plurality of suspension rods. During washing and dewatering, the inner cylinder rotates relatively to the outer cylinder to make the clothes and the washing water act, so as to clean the clothes or dewater, and the vibration in the vertical direction is buffered by the suspender. However, due to the non-uniformity of the load, the drum assembly can swing greatly under the action of the eccentric force, and particularly, in the dewatering starting stage, the vibration displacement amount of the drum assembly is maximum, and the drum assembly is easy to strike the box body. Therefore, in the related art, a vibration damper is added between the box body and the outer cylinder, and can absorb and release a part of vibration energy, so that the maximum vibration displacement of the cylinder assembly during dehydration starting is reduced, and the problem that the cylinder assembly impacts the box body is avoided. But the vibration damper is connected with the box body through the suspender, and the vibration damper receives the acting force exerted by the suspender, so that fatigue failure is easy to occur due to uneven stress, and the service life of the vibration damper is influenced. Disclosure of Invention The application aims to provide a vibration damper and clothes treatment equipment, which can make the stress of the part of the vibration damper connected with a suspender uniform, reduce the possibility of fatigue failure of the vibration damper and prolong the service life of the vibration damper. The first aspect of the application provides a vibration damping device, which is applied to clothes treatment equipment, and comprises a hanging rod, wherein the vibration damping device further comprises a first moving piece and a second moving piece, the first moving piece comprises a first main body part and a second connecting part connected with the second main body part, the second main body part is connected with the first main body part in a pivot mode, the second connecting part comprises a body part with a through hole, the second connecting part is sleeved on the outer peripheral side of the hanging rod through the through hole, and the first elastic part and the second elastic part of the body part, which are positioned on two sides of a central connecting line of the second main body part and the through hole, can be elastically deformed. According to the vibration damper, the vibration damper comprises the suspender, the first moving piece and the second moving piece, wherein the first main body part of the first moving piece is in pivot connection with the second main body part of the second moving piece, so that the first moving piece and the second moving piece relatively rotate within a preset angle to generate damping force, the vibration displacement of the cylinder assembly is reduced, and the phenomenon that the cylinder assembly is excessively large in amplitude and impacts the box body is avoided. In addition, the second connecting portion is including the body portion that has the through-hole, and the periphery side of jib is located through the through-hole cover to the second connecting portion, and the first elastic part and the second elastic part that are located second main part portion and the center line both sides of through-hole of body portion homoenergetic take place elastic deformation, can not take place to warp or even damage because of stress concentration, reduces vibration damper and takes place fatigue failure's possibility, improves vibration damper's life. In addition, the vibration damping device according to the present application may have the following additional technical features: In some embodiments of the present application, the body portion includes an inner peripheral structure and an outer peripheral structure, the inner peripheral structure forming a through hole, the outer peripheral structure being disposed at intervals on an outer peripheral side of the inner peripheral structure, a plurality of reinforcing ribs being connected between the inner peripheral structure and the outer peripheral structure, and a through groove being formed between two adjacent reinforcing ribs. In some embodiments of the present application, the plurality of reinforcing ribs and the plurality of through slots are phased on both sides of the center line, and the first elastic port