CN110344691B

CN110344691B - Buffer hinge

Info

Publication number: CN110344691B
Application number: CN201810306910.0A
Authority: CN
Inventors: 吴腾庆; 吴积庆
Original assignee: Guangdong Jinli Xiangxing Precision Metal Manufacturing Co ltd
Current assignee: Guangdong Jinli Xiangxing Precision Metal Manufacturing Co ltd
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2024-04-02
Anticipated expiration: 2038-04-08
Also published as: CN110344691A

Abstract

The invention relates to a buffer hinge, which comprises a hinge cup, a first connecting rod, a second connecting rod, a torsion spring, a hinge arm and a base, wherein the lower ends of the first connecting rod and the second connecting rod are hinged with the lower end of the hinge cup through a U-shaped needle, the hinge arm is arranged on the base, the upper end of the first connecting rod is hinged with the torsion spring and two sides of the hinge arm, and the tail end rotating arm of the torsion spring is propped against the top of the inner wall of the hinge arm, and the buffer hinge is characterized in that: the device comprises a hinge arm, a rotating device, a buffer, a second connecting rod, a middle section rotating arm and a buffer, wherein the rotating device is in contact with the buffer, the buffer is driven to stretch out and draw back when the rotating device rotates, the rotating device is fixedly connected with the upper end of the second connecting rod, the upper end of the second connecting rod is hinged with the two sides of the hinge arm, the middle section rotating arm of the torsion spring is in butt pressing with the hinge part, and the buffer is arranged at the bottom of the hinge arm and a piston rod of the buffer is fixedly connected with the hinge arm. The invention optimizes and improves the connection structure of the rotator and the buffer, has compact structure and less parts, reduces the production cost, is convenient to assemble, and improves the working efficiency and the stability of products.

Description

Buffer hinge

Technical Field

The invention relates to a buffer hinge, in particular to a two-section force buffer hinge.

Background

The damper hinge is a kind of hinge, which relies on a completely new technology to adapt the closing speed of the door. Even if the door is closed by force, the door can be closed gently, and the perfect and calm movement is ensured. The existing buffer hinge is complex in structure, and a plurality of connecting pieces are needed to drive the pull buffer, so that the problems of difficult assembly, high cost, unstable structure and the like are caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the buffer hinge which has the advantages of simple structure, convenience in assembly and good stability.

In order to achieve the above object, the present invention can be achieved by the following technical scheme:

the utility model provides a buffering hinge, includes hinge cup, first connecting rod, second connecting rod, torsional spring, hinge arm and base, the lower extreme of first connecting rod and second connecting rod is articulated with the lower extreme of hinge cup through the U-shaped needle, the hinge arm is installed on the base, the upper end of first connecting rod is articulated with torsional spring, the both sides of hinge arm, the terminal rocking arm of torsional spring offsets its characterized in that with the inner wall top of hinge arm: the device comprises a hinge arm, a rotating device, a buffer, a second connecting rod, a middle section rotating arm and a buffer, wherein the rotating device is in contact with the buffer, the buffer is driven to stretch out and draw back when the rotating device rotates, the rotating device is fixedly connected with the upper end of the second connecting rod, the upper end of the second connecting rod is hinged with the two sides of the hinge arm, the middle section rotating arm of the torsion spring is in butt pressing with the hinge part, and the buffer is arranged at the bottom of the hinge arm and a piston rod of the buffer is fixedly connected with the hinge arm.

Further, the contact part of the buffer and the rotator is an inward concave arc, and the position relation between the rotator and the buffer is gradually rotated from the adjacent position to the opposite position in the process of opening to closing the hinge.

Further, a first pin is arranged at the bottom of the hinge arm, and the buffer is placed on the first pin.

Further, an opening buckle is arranged at the end part of a piston rod of the buffer, and the second pin penetrates through the opening buckle to be fixed at two sides of the hinge arm.

Further, the upper end of the second connecting rod is a clamping part matched with the rotator, the clamping part is fixedly connected with the rotator, the clamping part is hinged to two sides of the hinge arm through a third pin, a rubber sleeve is sleeved on the third pin, and a middle section rotating arm of the torsion spring is propped against the rubber sleeve.

Further, a boss nested with the hinge arm is arranged on the base, a screw hole and a U-shaped groove are formed in the boss, and the hinge arm is correspondingly provided with the U-shaped groove and the screw hole which are assembled with the hinge arm.

Further, the rotator is an eccentric wheel.

Further, the buffer is an oil cylinder.

Compared with the prior art, the invention has the beneficial effects that: the connection structure of the rotator and the buffer is optimized and improved, the structure is compact, the number of parts is small, the production cost is reduced, the assembly is convenient, and the working efficiency and the stability of products are improved; the oil cylinder is used as a buffer to ensure small-angle buffering; meanwhile, the base can move back and forth in the hinge arm, so that the sliding-in type assembly of the base is realized, the base is convenient to change, and the middle bend and the large bend are realized rapidly. The invention is suitable for door panels with the thickness of 15mm-23 mm.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention in a closed state;

FIG. 2 is a schematic view of the overall structure of the present invention in an open state;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of a portion of the structure of FIG. 2;

FIG. 5 is a schematic view of the internal structure of the present invention in a closed state;

FIG. 6 is a schematic view of the internal structure of the open state of the present invention;

in the figure: 1-hinge cup, 2-first connecting rod, 3-second connecting rod, 31-clamping part, 4-U-shaped needle, 5-torsional spring, 51-end rotating arm, 52-middle rotating arm, 6-hinge arm, 7-base, 71-boss, 8-rotator, 9-buffer, 91-open button, 10-first pin, 11-second pin, 12-third pin, 13-gum cover.

Detailed Description

The invention will be further described with reference to the accompanying drawings and detailed description below:

as shown in fig. 1 to 6, the buffering hinge of the present invention mainly comprises a hinge cup 1, a first link 2, a second link 3, a torsion spring 5, a hinge arm 6, a base 7, a rotator 8 and a buffer 9. The lower ends of the first connecting rod 2 and the second connecting rod 3 are hinged with the lower end of the hinge cup 1 through a U-shaped needle 4, so that the hinge cup 1 can drive the first connecting rod 2 and the second connecting rod 3 at the same time. The hinge arm 6 is arranged on the base 7, the upper end of the first connecting rod 2 is hinged with the torsion spring 5 and two sides of the hinge arm 6 through pins, and the tail end rotating arm 51 of the torsion spring 5 abuts against the top of the inner wall of the hinge arm 6.

The rotator 8 and the buffer 9 are contacted, the contact part of the buffer 9 and the rotator 8 is specifically an inward concave arc, and the position relation between the rotator 8 and the buffer 9 slowly rotates from the opposite to the opposite position in the process of opening and closing the hinge, so that the buffer 9 is driven to stretch when the rotator 8 rotates. The rotator 8 is fixedly connected with the upper end of the second connecting rod 3, the upper end of the second connecting rod 3 is hinged with the two sides of the hinge arm 6, and the middle section rotating arm 52 of the torsion spring 5 forms abutting pressure on the hinged part. Specifically, the upper end of the second connecting rod 3 is a clamping part 31 matched with the rotator 8, the rotator 8 is sleeved into the clamping part 31, the clamping part 31 is fixedly connected with two sides of the hinge arm 6 through a third pin 12, the clamping part 31 can rotate, a rubber sleeve 13 is sleeved on the third pin 12, and the middle section rotating arm 52 of the torsion spring 5 is propped against the rubber sleeve 13.

The buffer 9 is arranged at the bottom of the hinge arm 6 and the piston rod of the buffer is fixedly connected with the hinge arm 6. In order to reduce friction between the buffer 9 and the bottom of the hinge arm 6, a first pin 10 is arranged at the bottom of the hinge arm 6, and the buffer 9 is placed on the first pin 10, so that the contact area between the buffer 9 and the hinge arm 6 is greatly reduced, friction force is reduced, and meanwhile, the buffer 9 is smoother and more labor-saving in the moving process due to the cylindrical pin. The end of the piston rod of the damper 9 is provided with a snap 91, and the second pin 11 is fixed to both sides of the hinge arm 6 through the snap 91.

For convenient assembly and replacement, the base 7 is provided with a boss 71 nested with the hinge arm 6, the boss 71 is provided with a screw hole and a U-shaped groove, and the hinge arm 6 is correspondingly provided with a U-shaped groove and a screw which are assembled with the U-shaped groove. The hinge arm 6 is slid into the base 7, adjusted to a proper position, the screw hole on the boss 71 is assembled with the U-shaped groove on the hinge arm 6 through a screw, and the U-shaped groove on the boss 71 is assembled with the screw hole on the hinge arm 6 through a screw.

Preferably, in order to achieve a better effect, the rotator 8 is an eccentric wheel, the buffer 9 is an oil cylinder, and the oil cylinder is used as a buffer to ensure small-angle buffer.

The working principle of the invention is as follows:

the hinge cup 1 is arranged on a cabinet door, the base 7 is arranged on the cabinet, when the cabinet door is opened, namely, the hinge cup 1 is in an opened state, as shown in figures 2, 4 and 6, the hinge cup 1 pulls the first connecting rod 2 and the second connecting rod 3, the torsion spring 5 hinged with the first connecting rod 2 is twisted to generate elasticity, the clamping part 31 of the second connecting rod 3 rotates rightwards to drive the rotator 8 and the buffer 9 to return to the attached position, and the buffer 9 is not compressed at the original position. Along with the closing of the hinge, as shown in fig. 1 and 5, the hinge cup 1 drives the first connecting rod 2 and the second connecting rod 3 to rotate, the clamping part 31 of the second connecting rod 3 drives the rotator 8 to rotate leftwards, but as the middle rotating arm 52 of the torsion spring 5 is propped against the rubber sleeve 13, the restoring elastic force generated by the torsion spring 5 is transmitted to the rotator 8, so that the rotator 8 can only slowly rotate leftwards to push the buffer 9, the buffer 9 is compressed, and the effect of door closing and buffering is achieved. The structural design of the rotator 8 and the buffer 9 ensures the small-angle buffer of the cabinet door, and the buffer can be performed by opening the door by more than 5 degrees.

Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing disclosure and are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a buffering hinge, includes hinge cup, first connecting rod, second connecting rod, torsional spring, hinge arm and base, the lower extreme of first connecting rod and second connecting rod is articulated with the lower extreme of hinge cup through the U-shaped needle, the hinge arm is installed on the base, the upper end of first connecting rod is articulated with torsional spring, the both sides of hinge arm, the terminal rocking arm of torsional spring offsets its characterized in that with the inner wall top of hinge arm: the device comprises a hinge arm, a rotating device, a buffer, a first connecting rod, a second connecting rod, a torsion spring, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, a fourth connecting rod, a fifth connecting rod and a fourth connecting rod, wherein the rotating device is in contact with the buffer;

the buffer is connected with the rotator through a hinge, wherein the contact part of the buffer and the rotator is an inward concave arc, and the position relationship between the rotator and the buffer slowly rotates from the attached position to the opposite position in the process of opening to closing of the hinge.

2. The cushioned hinge of claim 1, wherein: the bottom of the hinge arm is provided with a first pin, and the buffer is placed on the first pin.

3. The cushioned hinge of claim 2, wherein: the end part of the piston rod of the buffer is provided with an opening buckle, and the second pin penetrates through the opening buckle to be fixed at two sides of the hinge arm.

4. The cushioned hinge of claim 1, wherein: the upper end of the second connecting rod is a clamping part matched with the rotator, the clamping part is fixedly connected with the rotator, the clamping part is hinged to two sides of the hinge arm through a third pin, a rubber sleeve is sleeved on the third pin, and a middle section rotating arm of the torsion spring is propped against the rubber sleeve.

5. The cushioned hinge of claim 1, wherein: the base is provided with a boss nested with the hinge arm, the boss is provided with a screw hole and a U-shaped groove, and the hinge arm is correspondingly provided with the U-shaped groove and the screw hole which are assembled with the hinge arm.

6. The cushioned hinge of claim 1, wherein: the rotator is an eccentric wheel.

7. The cushion hinge of claim 6, wherein: the buffer is an oil cylinder.