Door hinge and laundry treatment device provided with door hinge

Patent metadata

Field	Value
Publication number	US-11834876-B2
Application number	US-201816962417-A
Country	US
Kind code	B2
Filing date	Dec 28, 2018
Priority date	Jan 16, 2018
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A door hinge, and a laundry treatment device provided with the door hinge, includes a hinge mount, a hinge shaft and a rotating arm, a side of the rotating arm is provided with a wire passing groove, the rotating arm further includes a fixing clip, and a cavity structure is formed by the fixing clip and the wire passing groove for allowing wire to pass. On the basis of the prior art, a wire passing structure of the door hinge is added, wiring of an energization component of the laundry treatment device with the door hinge can be facilitated, wires can be hidden by the wire passing structure, space is saved, and the attractiveness is improved; the wires are not liable to be worn or broken since the wires are placed in the groove; and all parts of the rotating arm can be disassembled for easy maintenance.

First claim

The invention claimed is:

1. A door hinge, comprising:
a hinge mount;
a hinge shaft and a rotating arm, wherein a side of the rotating arm is provided with a wire passing groove, the rotating arm is provided with a fixing clip, and
a cavity structure for allowing wire to pass is formed by the fixing clip and the wire passing groove;
one end of the rotating arm is connected with the hinge mount via the hinge shaft, another end of the rotating arm is configured to be connected with a machine door;
the one end of the rotating arm, connected with the hinge mount, has a curved shape in a cross-section perpendicular to the hinge shaft,
the other end of the rotating arm, configured to be connected with the machine door, is of a planar structure, and
the wire passing groove includes a curved groove corresponding to the one end having the curved shape of the rotating arm and a straight groove corresponding to the planar structure of the rotating arm.

2. The door hinge according to claim 1 , wherein
the one end of the rotating arm is provided with a through hole for allowing wire to pass, and
the wire passing groove extends from the through hole to the other end of the rotating arm configured to be connected with the machine door.

3. The door hinge according to claim 2 , wherein,
an installation hole for being connected with the machine door is arranged on the planar structure.

4. The door hinge according to claim 1 , wherein the fixing clip is matched with the wire passing groove of the rotating arm in shape,
the fixing clip comprises a curved clipping section connected with and matched with the curved groove and a straight clipping section connected with and matched with the straight groove.

5. The door hinge according to claim 4 , wherein the fixing clip is detachably connected with the rotating arm.

6. The door hinge according to claim 1 , wherein the door hinge is provided with a limiting structure, the hinge mount or the rotating arm is provided with a stop protrusion which is located at a joint between the hinge mount and the rotating arm, and
the stop protrusion limits a rotation angle of the rotating arm relative to the hinge mount.

7. A laundry treatment device provided with the door hinge according to claim 1 , comprising:
a machine door; and
a front panel, wherein
the hinge mount of the door hinge is connected with the front panel,
the rotating arm of the door hinge is connected with the machine door, and
the machine door is rotationally connected with the front panel.

8. The door hinge according to claim 5 , wherein the fixing clip and the rotating arm are connected in a bolted or clamped mode.

9. A door hinge comprising:
a hinge mount;
a hinge shaft;
an end cover; and
a rotating arm, wherein a side of the rotating arm is provided with a wire passing groove, the rotating arm is provided with a fixing clip;
a cavity structure for allowing wire to pass is formed by the fixing clip and the wire passing groove;
one end of the rotating arm is connected with the hinge mount via the hinge shaft, another end of the rotating arm is configured to be connected with a machine door;
the one end of the rotating arm is provided with a through hole for allowing wire to pass, and the wire passing groove extends from the through hole to the other end of the rotating arm configured to be connected with the machine door;
the end cover is detachably connected with the rotating arm,
a tail of the end cover is hermetically connected with the through hole,
the end cover is hollow inside for allowing wire to pass and is of a cambered surface structure as a whole matched with the rotating arm, and
the end cover is provided with a fixing and guiding structure.

10. The door hinge according to claim 9 , wherein the fixing and guiding structure of the end cover is a guide hole,
the guide hole is arranged at an upper portion and/or a lower portion of the end cover,
a size of the guide hole is set for fastening wires or cables, and
the end cover is connected with the rotating arm in a bolted or clamped mode.

11. The door hinge according to claim 10 , wherein the end cover and the fixing clip are arranged as an integrated structure, and
the end cover and the fixing clip which are integrally formed are detachably connected with the rotating arm.

12. The door hinge according to claim 9 , wherein the fixing clip is matched with the wire passing groove of the rotating arm in shape,
the fixing clip comprises a curved clipping section connected with and matched with the curved groove and a straight clipping section connected with and matched with the straight groove.

13. The door hinge according to claim 12 , wherein the fixing clip is detachably connected with the rotating arm.

14. A laundry treatment device provided with the door hinge according to claim 9 , comprising:
a machine door; and
a front panel, wherein
the hinge mount of the door hinge is connected with the front panel,
the rotating arm of the door hinge is connected with the machine door, and
the machine door is rotationally connected with the front panel.

15. The door hinge according to claim 9 , wherein the door hinge is provided with a limiting structure, the hinge mount or the rotating arm is provided with a stop protrusion which is located at a joint between the hinge mount and the rotating arm, and
the stop protrusion limits a rotation angle of the rotating arm relative to the hinge mount.

Assignees

• Qingdao Haier Laundry Electric Appliances Co Ltd
• Haier Smart Home Co Ltd

Inventors

• Li Wenwei
• Xing Benfu
• Wang Jinkai
• Cai Rongshuai
• Yi Shaolei

Classifications

• E05Y2800/428

  against water or ice · CPC title

• E05D11/0081 Primary

  for transmitting energy, e.g. electrical cable routing · CPC title

• D06F39/14 Primary

  Doors or covers; Securing means therefor · CPC title

• E05D3/02

  with one pin · CPC title

• E05D5/065

  specially adapted for cabinets or furniture · CPC title