Hinge

Abstract

A hinge includes a hinge arm (1) and a hinge base (6) fitting with the hinge arm. A support (2) is disposed between the hinge arm (1) and the hinge base. A first end of the support is movably connected to the hinge arm, and a second end is movably disposed with the hinge base (6). A locking position (12) is disposed on the hinge arm. A connecting piece (4) is disposed in fitting with the locking position. A first end of the connecting piece is movably connected to the body of the support, and a second end is movably connected to a first end of a rocking bar (7). The body portion of the rocking bar (7) is movably connected coaxially to a second end of the support (2) and the hinge base (6). A connecting shaft (72) is disposed on a second end of the rocking bar. A first end of a spring (3) is hung to the connecting shaft, and the other end of the spring is hung to a hanging shaft (62) that is disposed fixedly with the hinge base. Because of the connecting spring, the connecting piece and the support on the key component rocking bar, by adjusting a hole position of a connecting rivet and a force of the spring, a balancing force and a buffering force can be provided for gates with different weights in a changing way, and the adaptability is good.

Claims

1. A hinge, comprising a hinge arm and a hinge base fitting with the hinge arm, wherein a support is disposed between the hinge arm and the hinge base; a first end of the support is movably connected to the hinge arm, and a second end is movably disposed with the hinge base; a locking portion is disposed on the hinge arm; a connecting piece is disposed in fitting with the locking portion; a first end of the connecting piece is movably connected to a body of the support, and a second end is movably connected to a first end of a rocking bar; a body portion of the rocking bar is movably connected coaxially to a second end of the support and the hinge base; a connecting shaft is disposed on a second end of the rocking bar; a first end of a spring is hooked on the connecting shaft, and the other end of the spring is hooked on a hanging shaft that is disposed fixedly with the hinge base.

2. The hinge according to claim 1, wherein the body portion of the rocking bar, the second end of the support, and the hinge base are fixedly connected by using a same shaft, and a shaft sleeve is disposed separately at positions at which two ends of the shaft are in contact with the hinge base.

3. The hinge according to claim 2, wherein an elliptic elongated groove is disposed on the hinge base, and the shaft is disposed in the elongated groove.

4. The hinge according to claim 1, wherein the hinge arm and the first end of the support are movably connected by using a support rivet.

5. The hinge according to claim 1, wherein the connecting piece is disposed in the support in a locking manner, groove holes are disposed on two parallel side faces that are on the support and adjacent to the first end, a roller shaft runs through the first end of the connecting piece and the groove holes, a roller is disposed on the roller shaft, and the roller is disposed in fitting with the locking portion.

6. The hinge according to claim 1, wherein the first end of the rocking bar and the second end of the connecting piece are movably connected by using a rocking bar rivet.

7. The hinge according to claim 1, wherein the hinge arm and the hinge base are movably connected by using a hinged rivet and a hinged sleeve that is sleeved on the hinged rivet.

8. The hinge according to claim 1, wherein the connecting shaft and the hanging shaft are both rivets.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a three-dimensional assembly diagram of a hinge;

(2) FIG. 2 is a main view of a hinge when a door body is closed; and

(3) FIG. 3 is a main view of a hinge when a door body is opened.

DETAILED DESCRIPTION

(4) The utility model is further described below with reference to the accompanying drawings.

(5) As shown in FIG. 1 to FIG. 3, a hinge includes a hinge arm 1 and a hinge base 6 fitting with the hinge arm, where a support 2 is disposed between the hinge arm and the hinge base; a first end of the support is movably connected to the hinge arm, and a second end is movably disposed with the hinge base; a locking position 12 is disposed on the hinge arm; a connecting piece 4 is disposed in fitting with the locking position; a first end of the connecting piece is movably connected to the body of the support, and a second end is movably connected to a first end of a rocking bar 7; the body portion of the rocking bar 7 is movably connected coaxially to a second end of the support 2 and the hinge base 6; a rivet is disposed on a second end of the rocking bar 7 as a connecting shaft 72; a first end of a spring 3 is hung to the connecting shaft, the other end of the spring is hung to a hanging shaft 62 that is disposed fixedly with the hinge base, and the hanging shaft is also a rivet. Specifically, the body portion of the rocking bar 7, the second end of the support 2, and the hinge base 6 are fixedly connected by using a same shaft 9, and a shaft sleeve 8 is disposed separately at positions at which two ends of the shaft are in contact with the hinge base. An elliptic elongated groove 64 is disposed on the hinge base, and the shaft 9 is disposed in the elongated groove. The hinge arm and the first end of the support are movably connected by using a support rivet 24. The connecting piece 4 is disposed in the support 2 in a locking manner, groove holes 22 are disposed on two parallel side faces that are on the support 2 and close to the first end, a roller shaft 51 runs through the first end of the connecting piece and the groove hole, a roller 5 is disposed on the roller shaft, and the roller is disposed in fitting with the locking position. The first end of the rocking bar 7 and the second end of the connecting piece 4 are movably connected by using a rocking bar rivet 74. The hinge arm 1 and the hinge base 6 are movably connected by using a hinged rivet 14 and a hinged sleeve 16 that is sleeved on the hinged rivet. The connecting shaft 72 and the hanging shaft 62 are both rivets.

(6) When in use, an oven door is pulled, that is, the hinge arm 1 is caused to rotate around the hinge base 6. A high spot of the locking position 12 is originally disposed under the roller 5. When an angle between the hinge arm and the hinge base reaches a certain degree, the high spot of the locking position 12 trips under the roller 5, and a side face of the locking position and a side face of the roller press against each other to form a new balance; in this process, because rotation of the hinge arm causes linked motion of the support, the connecting piece, and the rocking bar, the spring returns to an original state from a pulling state as long as a specific range of rotation of the hinge arm is between 25 and 85. Meanwhile, because the hinge pulls the spring by rotating the hinge arm, and provides a supporting force to the roller by using the connecting piece and the support, the hinge arm and the door can stop at any angle between 25 and 40; when the door is being closed, the door causes the hinge arm to rotate, a tension force of the spring provides a pressure to the roller by using the connecting piece and the support, the roller presses on an inclined surface of the hinge arm, so that the door is quickly closed within 25, and the door has a certain holding pressure and can be closed slowly; besides, because the hinge base is provided with the elliptic elongated groove, so that the spring can adjust a forces at each angle by pulling of the support; the shaft is disposed in fitting with the elongated groove, and a shaft sleeve is disposed separately at two sides, so that the shaft rolls inside a hole, and wear resistance performance of a contact piece can be improved.