CN201159004Y - A door hinge device - Google Patents

Abstract

The utility model discloses a door hinge device, which comprises a door hinge seat, a hinge frame, a hinge shaft, a hinge bush and a spring. The hinge shaft, hinge bush and spring are all installed on the hinge frame, and the hinge shaft One end is fastened to the door hinge seat through the through hole on the hinge frame, the other end of the hinge shaft matches with one end of the hinge sleeve, the other end of the hinge sleeve touches the spring, and the hinge frame is fastened on the door body , The door hinge seat is fastened on the box body. The utility model has the advantages of simple and compact structure, convenient processing and production, and convenient operation. After the door body is closed, the door body can be automatically locked.

Description

A door hinge device

technical field

The utility model relates to a door hinge device, in particular to a door hinge device with a self-locking function.

Background technique

At present, the door hinge devices commonly used in refrigerators and freezers, due to their structural limitations, can easily cause the door to not close tightly, resulting in the loss of cold air in the refrigerator, freezer and other cabinets, generating condensation, wasting electricity, and often receive complaints from customers.

Utility model content

The purpose of this utility model is to provide a door hinge device with self-locking function for the deficiencies of the prior art. Its structure is simple and compact, and it is easy to manufacture and operate. After the door body is closed, it can automatically lock the door body.

The technical solution provided by the utility model is a door hinge device, including a door hinge seat, a hinge frame, a hinge shaft, a hinge bush and a spring, and the hinge shaft, hinge bush and spring are all installed on the hinge frame, and One end of the hinge shaft is fastened on the door hinge seat through the through hole on the hinge frame, the other end of the hinge shaft matches with one end of the hinge sleeve, the other end of the hinge sleeve touches the spring, and the hinge frame is fastened on the On the door body, the door hinge seat is fastened on the box body.

The hinge shaft and the hinge sleeve have a V-shaped mating surface.

There is a plane on the top of the hinge bushing.

As a further improvement of the utility model, the end of the spring far away from the hinge bushing is further provided with a bottom pad and a latch on the bottom pad, and the bottom pad is mounted on the hinge frame through the latch.

The door hinge seat also includes a door stopper and a door stopper washer, and one end of the hinge shaft passes through the door stopper and the door stopper washer and is fastened on the door hinge seat so that the door body cannot be opened too much. to avoid damage to the door.

The door hinge device is installed on the lower left part of the refrigerator or on the lower right part of the refrigerator, so that the door can be opened to the left or to the right.

Compared with the prior art, the utility model utilizes the hinge frame, the hinge shaft, the hinge sleeve and the spring installed on the hinge frame, so that the structure is simple and compact, the processing is convenient, and the operation is convenient. After the door body is closed, It can automatically lock the door body to avoid the loss of cold air and achieve the purpose of energy saving.

Description of drawings

Fig. 1 is the structural exploded schematic diagram of the door hinge device of the present invention;

Fig. 2 is a schematic diagram of the door hinge device shown in Fig. 1 being installed on the refrigerator;

FIG. 3 is a partially enlarged view of part I in FIG. 2 .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

As shown in FIG. 1 , a door hinge device includes a hinge frame 1 , a hinge shaft 3 , a hinge sleeve 4 , a spring 5 , a door stop block 8 , a door stop block washer 9 , and a door hinge seat 10 .

One end of the hinge shaft 3 is fastened on the door hinge seat 10 through the through hole provided on the hinge frame 1, the other end of the hinge shaft 3 is matched with one end of the hinge sleeve 4, and the other end of the hinge sleeve 4 abuts against the spring 5 , The hinge frame 1 is fastened on the door body, and the door hinge seat 10 is fastened on the box body.

The hinge shaft 3 and the hinge sleeve 4 have a V-shaped mating surface, and the top of the hinge sleeve 4 has a plane. Since only the hinge bushing can move axially when the refrigerator door is opened, the hinge shaft 3 and the hinge bushing 4 can be easily It is easy to separate, and there is a flat surface on the top of the hinge bushing, so that when the refrigerator door is opened to a certain angle by external force, the door will stop when the external force is removed.

The end of the spring 5 away from the hinge sleeve 4 is also provided with a bottom pad 6 and a latch 7 arranged on the bottom pad 6 , and the bottom pad 6 is installed on the hinge frame 1 through the latch 7 .

One end of the hinge shaft 1 extends out of the through hole on the hinge frame 1 through a plastic sleeve 2 .

The door hinge seat 10 also includes a door stop block 8 and a door stop block washer 9 , and one end of the hinge shaft 3 passes through the door stop block 8 and the door stop block washer 9 and is fastened on the door hinge seat 10 .

The door hinge device is installed on the left lower part of the refrigerator, as shown in Figure 2 and Figure 3, so that the refrigerator door can be opened to the left.

Of course, the door hinge device can also be installed on the lower right part of the refrigerator, so that the refrigerator door can be opened to the right.

When the refrigerator door is opened, the hinge bushing 4 and the hinge frame 1 rotate together with the refrigerator door, driving the hinge bushing 4 to move in the axial direction, and under the action of the spring 5, the hinge shaft 3 and the hinge bushing 4 always keep in contact state. If the external force is removed at this time, the hinge shaft 3 and the hinge sleeve 4 will be out of contact under the action of the spring 5 so that the door is automatically closed to achieve the self-locking function.

If when the door is opened to a sufficiently large angle so that the contact surface of the hinge shaft 3 and the hinge sleeve 4 is on the top plane of the hinge sleeve 4, the active force of the spring will not be converted into a rotational force at this time, and the door will be opened after the external force is removed. It's still open. Now, when closing the door with external force, the door rotates to a certain angle, and the contact surface of the hinge shaft 3 and the hinge sleeve 4 is on the V-shaped surface. At this time, under the effect of the spring 5, the door is automatically closed.

Claims (7)

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.

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