CN101235692A

CN101235692A - Door hinge device

Info

Publication number: CN101235692A
Application number: CNA200710032748XA
Authority: CN
Inventors: 许粤海; 陈永淮; 张德强; 吴清毅; 区健东
Original assignee: Hisense Kelon Electrical Holdings Co Ltd; Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Home Appliances Group Co Ltd; Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2007-12-21
Filing date: 2007-12-21
Publication date: 2008-08-06

Abstract

The invention discloses a door hinge device, which comprises a door hinge seat, a hinge frame, a hinge shaft, a hinge shaft sleeve and a spring, wherein the hinge shaft, the hinge shaft sleeve and the spring are mounted on the hinge frame, and one end of the hinge shaft is tightly fixed on the door hinge seat through a through hole which is arranged on the hinge frame, and the other end of the hinge shaft is engaged with one end of the hinge shaft sleeve, and the other end of the hinge shaft sleeve is leaned against the spring, the hinge frame is tightly and fixedly mounted on a door body, and the door hinge seat is mounted on a box body. The door hinge device has simple and compact structure, which is convenient to process and manufacture, and is convenient to operate, and the door hinge device can automatically and tightly lock a door body after the door body is closed.

Description

A kind of door hinge device

Technical field

The present invention relates to a kind of door hinge device, specifically relate to a kind of door hinge device with auto-lock function.

Background technology

Refrigerator, the normally used door hinge device of refrigerator because the restriction of its structure is easy to cause door to fit badly close situation, cause the cold air in the cabinets such as refrigerator, refrigerator to run off at present, produce condensation, and electricity wasting often is subjected to Customer Complaint.

Summary of the invention

The objective of the invention is provides a kind of door hinge device with auto-lock function at the deficiencies in the prior art, and it is simple in structure, compact, and processing and fabricating is convenient, is convenient to operation, and the door body can be locked the door body after closure automatically.

Technical scheme provided by the invention is a kind of door hinge device, comprise a free bearing, hinge mount, hinge axis, hinge shaft sleeve and spring, described hinge axis, hinge shaft sleeve, spring are installed on the hinge mount, and an end of hinge axis is fastened on the free bearing by the through hole of being located on the hinge mount, one end of the other end of hinge axis and hinge shaft sleeve cooperates, the other end butt spring of hinge shaft sleeve, hinge mount is fastening to be installed on the body, and free bearing is fastening is installed on the casing for door.

Described hinge axis and hinge shaft sleeve have the V-arrangement fitting face.

A plane is arranged at described hinge shaft sleeve top.

As a further improvement on the present invention, described spring also is provided with heelpiece away from an end of hinge shaft sleeve and is located at latch on the heelpiece, and heelpiece is installed on the hinge mount by latch.

Described door free bearing also comprises a limited block and a door limited block packing ring, and an end of hinge axis passes a limited block and a door limited block packing ring is fastened on the free bearing, makes a ground door body be unlikely to beat too far apart, avoids damaging a door body.

Described door hinge device is installed in the lower left quarter of refrigerator or is installed in the right lower quadrant of refrigerator, makes door open or open left to the right.

Compared with prior art, the present invention has utilized hinge mount and the hinge axis, hinge shaft sleeve and the spring that are installed on the hinge mount, makes simple in structure, compact, processing and fabricating is convenient, is convenient to operation, and the door body is after closure, can avoid cold air to run off automatically with the locking of door body, reach purpose of energy saving.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of door hinge device of the present invention;

Fig. 2 is that door hinge device shown in Figure 1 is installed in the schematic diagram on the refrigerator;

Fig. 3 is the partial enlarged drawing at the I position of Fig. 2.

The specific embodiment

The present invention is further illustrated below in conjunction with the drawings and the specific embodiments.

As shown in Figure 1, a kind of door hinge device comprises hinge mount 1, hinge axis 3, hinge shaft sleeve 4, spring 5, door limited block 8, door limited block packing ring 9, door free bearing 10.

One end of hinge axis 3 is fastened on the free bearing 10 by the through hole of being located on the hinge mount 1, one end of the other end of hinge axis 3 and hinge shaft sleeve 4 cooperates, the other end butt spring 5 of hinge shaft sleeve 4, hinge mount 1 fastening being installed on the body, door free bearing 10 fastening being installed on the casing.

Described hinge axis 3 and hinge shaft sleeve 4 have the V-arrangement fitting face, and a plane is arranged at hinge shaft sleeve 4 tops.Because when opening refrigerator doors, have only hinge shaft sleeve to move vertically, so utilize the contact surface of this special construction of the V-arrangement fitting face between hinge axis and the hinge shaft sleeve, make hinge axis 3 be easy to separate with hinge shaft sleeve 4, and a plane arranged at the top of hinge shaft sleeve, thereby when refrigerator doors being reached certain angle with external force, cancel external force after, door can be slack.

Spring 5 also is provided with heelpiece 6 away from an end of hinge shaft sleeve 4 and is located at latch 7 on the heelpiece 6, and heelpiece 6 is installed on the hinge mount 1 by latch 7.

One end of hinge axis 1 stretches out through hole on the hinge mount 1 by a plastic sheath 2.

This free bearing 10 also comprises a limited block 8 and door limited block packing ring 9, and an end of described hinge axis 3 passes a limited block 8 and door limited block packing ring 9 is fastened on the free bearing 10.

Described door hinge device is installed in the lower left quarter of refrigerator, as shown in Figures 2 and 3, refrigerator doors can be opened left.

Certainly, door hinge device also can be installed in the right lower quadrant of refrigerator, and refrigerator doors can be opened to the right.

When opening refrigerator doors,, hinge shaft sleeve 4 and hinge mount 1 drive hinge shaft sleeve 4 and move vertically together along with the refrigerator doors rotation, and under the effect of spring 5, hinge axis 3 and hinge shaft sleeve 4 remain contact condition.If cancel external force this moment, thereby hinge axis 3 and hinge shaft sleeve 4 disengage door are closed automatically under spring 5 effects, reach auto-lock function.

If when door reach enough big angle, the contact surface that makes hinge axis 3 and hinge shaft sleeve 4 is on the top plan of hinge shaft sleeve 4 time, and the active force of spring just can not be converted into revolving force at this moment, cancels that the external force back door still opening.At this moment, when with external force at closing time, door rotates to certain angle, and the contact surface of hinge axis 3 and hinge shaft sleeve 4 is at the V-type face, and at this moment under the effect of spring 5, door is closed automatically.

Claims

1, a kind of door hinge device, it is characterized in that: comprise a free bearing, hinge mount, hinge axis, hinge shaft sleeve and spring, described hinge axis, hinge shaft sleeve, spring are installed on the hinge mount, and an end of hinge axis is fastened on the free bearing by the through hole of being located on the hinge mount, one end of the other end of hinge axis and hinge shaft sleeve cooperates, the other end butt spring of hinge shaft sleeve, hinge mount is fastening to be installed on the body, and free bearing is fastening is installed on the casing for door.

2, door hinge device according to claim 1 is characterized in that: described hinge axis and hinge shaft sleeve have the V-arrangement fitting face.

3, door hinge device according to claim 2 is characterized in that: a plane is arranged at described hinge shaft sleeve top.

4, door hinge device according to claim 1 is characterized in that: spring also is provided with heelpiece away from an end of hinge shaft sleeve and is located at latch on the heelpiece, and heelpiece is installed on the hinge mount by latch.

5, door hinge device according to claim 1 is characterized in that: an end of hinge axis stretches out through hole on the hinge mount by a plastic sheath.

6, according to each described door hinge device of claim 1 to 5, it is characterized in that: this free bearing also comprises a limited block and door limited block packing ring, and an end of described hinge axis passes a limited block and door limited block packing ring is fastened on the free bearing.

7, door hinge device according to claim 6 is characterized in that: described door hinge device is installed in the lower left quarter of refrigerator or is installed in the right lower quadrant of refrigerator.