A small-angle thick door buffer hinge

Abstract

The present invention discloses a buffer hinge for a small-angle thick door, comprising a hinge body installed on a side panel of a cabinet body and a hinge cup installed on a cabinet door, the hinge body comprising a connecting arm, an outer rocker arm and an inner rocker arm; the rear end portion of the inner rocker arm cooperates with a buffer assembly, the buffer assembly and a hinge three-dimensional adjustment seat are arranged front and back on the connecting arm; the buffer assembly comprises a buffer seat, a buffer damper and two elastic members are arranged on the buffer seat, the buffer damper is placed between the two elastic members, and the buffer shaft of the buffer damper is connected to the buffer seat; the present invention does not need to separately install the buffer damper and the two elastic members to simplify the installation structure, and reasonably utilizes the buffer damper and the two elastic members to achieve the buffer effect, so that the buffer assembly and the hinge three-dimensional adjustment seat are arranged front and back on the connecting arm, effectively avoiding the traditional buffer damper being directly installed on the connecting arm, so that the connecting arm has no straight base installed.

Description

Technical Field

[0001] The invention relates to the field of hinges, and more particularly to a small-angle thick door buffer hinge. Background Art

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two solid bodies and allow them to rotate relative to each other. Hinges are mainly installed on doors and windows, while hinges are more often installed on cabinets. In order to give people a better enjoyment, hydraulic hinges (also known as damping hinges) have appeared. Their characteristic is that they provide a buffering function when the cabinet door is closed, which minimizes the noise caused by the collision between the cabinet door and the cabinet body when it is closed.

[0003] At present, a Chinese patent with application number 202023144433.4 on the market discloses a small-angle buffer hinge, comprising a hinge body installed on the inner side of a frame and a hinge cup installed on a cabinet door; the hinge body comprises a connecting arm, an outer rocker arm and an inner rocker arm; one end of the inner rocker arm is connected to the buffer damper through a linkage block, and the other end is hinged to the hinge cup through an upper connecting rod of a U-shaped pin shaft; the linkage block is rotatably arranged on the connecting arm through a linkage shaft; when the cabinet door is opened at a small angle, the inner rocker arm will compress the double torsion spring, and at the same time, the inner rocker arm will compress the buffer rod of the buffer damper through the linkage block to achieve slow opening. At this time, when the cabinet door is released, the inner rocker arm will reset and close under the torsion of the double torsion spring. At this time, the inner rocker arm will pull out the buffer rod of the buffer damper through the linkage block, which has a damping effect and achieves slow closing, effectively avoiding the jumping or no damping phenomenon of the hinge due to the small opening angle of the cabinet door during the hinge opening process, thereby improving the service life of the hinge.

[0004] The buffer damper is installed in the connecting arm, which occupies the installation space of the connecting arm, so that the connecting arm has no straight base for installation, and the installation structure of the buffer damper is relatively complicated. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a buffer hinge for thick doors with a small angle.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A buffer hinge for a small-angle thick door, comprising a hinge body installed on a cabinet side panel and a hinge cup installed on a cabinet door, wherein the hinge body comprises a connecting arm, an outer rocker arm and an inner rocker arm; a hinge three-dimensional adjustment seat is installed at one end of the connecting arm, and the other end is hinged to the outer rocker arm through an outer pin shaft, and the outer rocker arm is hinged to the hinge cup through a lower connecting rod of a U-shaped pin shaft; the inner rocker arm is rotatably arranged on the connecting arm through an inner pin shaft, the front end of the inner rocker arm is hinged to the hinge cup through an upper connecting rod of a U-shaped pin shaft, the rear end of the inner rocker arm cooperates with a buffer assembly, and the buffer The assembly and the hinge three-dimensional adjustment seat are arranged on the connecting arm front and back; the buffer assembly includes a buffer seat, on which a buffer damper and two elastic members are arranged, the buffer damper is placed between the two elastic members, and the buffer shaft of the buffer damper is connected to the buffer seat; wherein the wave elastic part of the elastic member abuts against the front end of the inner rocker arm, and the buffer damper is provided with an abutting part abutting against the rear end of the inner rocker arm, when the front end of the inner rocker arm rotates to press the elastic member, the rear end of the inner rocker arm will cooperate with the abutting part to compress the buffer damper.

[0008] The present invention further provides that: the buffer seat is provided with a slide rail for the buffer damper body to move.

[0009] The present invention further provides that: the number of the abutting parts is two and they are symmetrically arranged on both sides of the buffer damper, and the rear end of the inner rocker arm is provided with a clamping arm matched with the abutting part.

[0010] The present invention is further provided with: a pressing shaft is passed through the front end of the inner rocker arm, and plastic sleeves matching with the wave elastic part of the elastic member are sleeved on both ends of the pressing shaft.

[0011] The present invention further provides that: both side edges of the buffer seat are provided with mounting grooves for mounting the elastic member.

[0012] The present invention is further provided that: one end of the buffer seat is fixed on the inner pin shaft, and the other end is fixed on the outer pin shaft.

[0013] The beneficial effects of the present invention are as follows: when the cabinet door is opened at a small angle, the hinge cup drives the inner rocker arm to rotate around the inner pin shaft, and the inner rocker arm will compress the two elastic members. At the same time, the rear end of the inner rocker arm will cooperate with the abutment part to compress the buffer damper, so as to achieve slow opening. Since the rear end of the inner rocker arm will always cooperate with the abutment part to compress the buffer damper, a damping effect is achieved, so as to achieve slow closing, effectively avoiding the phenomenon of jumping or no damping of the hinge due to the small opening angle of the cabinet door during the hinge opening process, thereby improving the service life of the hinge;

[0014] Furthermore, the present invention installs the buffer damper and the two elastic parts on the buffer seat to form an integral buffer assembly, and then directly fixes the buffer seat to the front end of the connecting arm, without the need to separately install the buffer damper and the two elastic parts, thereby simplifying the installation structure, and rationally utilizing the buffer damper and the two elastic parts to achieve the buffer effect, so that the buffer assembly and the hinge three-dimensional adjustment seat are arranged front and back on the connecting arm, effectively avoiding the traditional buffer damper being directly installed on the connecting arm, so that the connecting arm has no straight base installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a buffer hinge for a small-angle thick door according to the present invention;

[0016] Figure 2 This is an exploded view of a buffer hinge for a small-angle thick door according to the present invention;

[0017] Figure 3 It is a structural schematic diagram of the inner rocker arm;

[0018] Figure 4 is a schematic diagram of the structure of the buffer component;

[0019] Figure 5 It is a structural schematic diagram of a buffer seat;

[0020] Figure 6 It is a structural schematic diagram of a buffer damper;

[0021] Figure 7 This is a structural view of the elastic member.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Hinge cup; 2. Connecting arm; 3. Outer rocker arm; 4. Inner rocker arm; 41. Clamping arm; 5. U-shaped pin; 6. Buffer assembly; 61. Buffer seat; 611. Slide rail; 612. Mounting groove; 62. Buffer damper; 621. Abutment portion; 63. Elastic member; 7. Pressing shaft; 8. Plastic sleeve; 9. Hinge three-dimensional adjustment seat. DETAILED DESCRIPTION

[0023] See attached Figures 1 to 7 The buffer hinge for a thick door with a small angle according to the present invention is further described in detail.

[0024] from Figure 1 and Figure 2It can be seen that a small-angle thick door buffer hinge includes a hinge body installed on the side panel of the cabinet body and a hinge cup 1 installed on the cabinet door, wherein the hinge body includes a connecting arm 2, an outer rocker arm 3 and an inner rocker arm 4; one end of the connecting arm 2 is installed with a hinge three-dimensional adjustment seat 9, and the other end is hinged to the outer rocker arm 3 through an outer pin shaft, and the outer rocker arm 3 is hinged to the hinge cup 1 through a lower connecting rod of a U-shaped pin shaft 5; the inner rocker arm 4 is rotatably arranged on the connecting arm 2 through an inner pin shaft, and the front end of the inner rocker arm 4 is connected to the hinge cup 1 through an upper connecting rod of a U-shaped pin shaft 5. The chain cup 1 is hinged, and the rear end of the inner rocker arm 4 cooperates with the buffer assembly 6. The buffer assembly 6 and the hinge three-dimensional adjustment seat 9 are arranged on the connecting arm 2 front and back; the buffer assembly 6 includes a buffer seat 61, and a buffer damper 62 and two elastic members 63 are arranged on the buffer seat 61. The buffer damper 62 is placed between the two elastic members 63, and the buffer shaft of the buffer damper 62 is connected to the buffer seat 61; wherein one end of the buffer seat 61 is fixed on the inner pin shaft, and the other end is fixed on the outer pin shaft.

[0025] from Figure 4 It can be seen that the present invention installs the buffer damper 62 and the two elastic members 63 on the buffer seat 61 to form an integral buffer assembly 6, and then the buffer seat 61 is directly fixed to the front end of the connecting arm 2, without the need to separately install the buffer damper 62 and the two elastic members 63, thereby simplifying the installation structure. Figure 5 It can be seen that the installation structure of the buffer damper 62 and the two elastic members 63 on the buffer seat 61 is as follows: a slide rail 611 is provided on the buffer seat 61 for the buffer damper 62 to move, the buffer damper 62 is placed in the slide rail 611, and its buffer shaft is connected to the buffer seat 61 to achieve the installation of the buffer damper 62. Installation grooves 612 for installing the elastic members 63 are provided on both sides of the buffer seat 61, wherein one end of the elastic member 63 is placed in the installation groove 612, and the wave elastic part of the other end abuts against the front end of the inner rocker arm 4, so that the two elastic members 63 are installed.

[0026] from Figure 3 It can be seen that a pressing shaft 7 is passed through the front end of the inner rocker arm 4, and plastic sleeves 8 matching the wave elastic part of the elastic member 63 are sleeved on both ends of the pressing shaft 7, so that the wave elastic part of the elastic member 63 can be easily abutted against the front end of the inner rocker arm 4, and friction or wear during the compression process of the elastic member 63 can be avoided, thereby improving the service life of the matching parts.

[0027] The buffer damper 62 is provided with a supporting portion 621 that is abutted against the rear end of the inner rocker arm 4. When the front end of the inner rocker arm 4 rotates to press the elastic member 63, the rear end of the inner rocker arm 4 will cooperate with the supporting portion 621 to compress the buffer damper 62. There are two supporting portions 621, which are symmetrically arranged on both sides of the buffer damper 62. The rear end of the inner rocker arm 4 is provided with a clamping arm 41 that cooperates with the supporting portion 621, so that the inner rocker arm 4 can stably and reliably compress the buffer damper 62 during the rotation process. When the clamping arm 41 is separated from the supporting portion 621, the buffer damper 62 can reset itself. The internal structure of the buffer damper 62 is the prior art and will not be repeated here.

[0028] In the present invention, when the cabinet door is opened at a small angle, the hinge cup 1 drives the inner rocker arm 4 to rotate around the inner pin shaft, and the inner rocker arm 4 will compress the two elastic members 63. At the same time, the rear end of the inner rocker arm 4 will cooperate with the abutment portion 621 to compress the buffer damper 62, thereby realizing slow opening. Since the rear end of the inner rocker arm 4 will always cooperate with the abutment portion 621 to compress the buffer damper 62, a damping effect is achieved, thereby realizing slow closing, effectively avoiding the phenomenon of jumping or no damping of the hinge due to the small opening angle of the cabinet door during the hinge opening process, thereby improving the service life of the hinge. It is clear that the buffer damper 62 and the two elastic members 63 are all installed on the buffer seat 61 to form an integral buffer assembly 6, and then the buffer seat 61 is directly fixed to the front end of the connecting arm 2, without the need to separately install the buffer damper 62 and the two elastic members 63 to simplify the installation structure, and the buffer damper 62 and the two elastic members 63 are reasonably used to achieve the buffer effect, so that the buffer assembly 6 and the hinge three-dimensional adjustment seat 9 are arranged front and back on the connecting arm 2, effectively avoiding the traditional buffer damper 62 directly installed on the connecting arm 2, so that the connecting arm 2 has no straight base installed.

[0029] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A small-angle thick door buffer hinge, comprising a hinge body mounted on a cabinet side panel and a hinge cup mounted on a cabinet door, The hinge body comprises a connecting arm, an outer rocker arm and an inner rocker arm; a hinge three-dimensional adjustment seat is installed at one end of the connecting arm, and the other end is hinged to the outer rocker arm through an outer pin shaft, and the outer rocker arm is hinged to the hinge cup through a lower connecting rod of a U-shaped pin shaft; Its characteristics are: The inner rocker arm is rotatably arranged on the connecting arm through the inner pin shaft, the front end of the inner rocker arm is hinged to the hinge cup through the upper connecting rod of the U-shaped pin shaft, the rear end of the inner rocker arm is matched with the buffer assembly, and the buffer assembly and the hinge three-dimensional adjustment seat are arranged on the connecting arm front and back; The buffer assembly comprises a buffer seat, on which a buffer damper and two elastic members are arranged, the buffer damper is placed between the two elastic members, and a buffer shaft of the buffer damper is connected to the buffer seat; The wave elastic part of the elastic member abuts against the front end of the inner rocker arm, and the buffer damper is provided with a abutting part abutting against the rear end of the inner rocker arm. When the front end of the inner rocker arm rotates to press the elastic member, the rear end of the inner rocker arm cooperates with the abutting part to compress the buffer damper. There are two abutting parts, which are symmetrically arranged on both sides of the buffer damper, and a clamping arm matching the abutting parts is provided at the rear end of the inner rocker arm; A pressing shaft is passed through the front end of the inner rocker arm, and plastic sleeves matching the wave elastic part of the elastic member are sleeved on both ends of the pressing shaft.

2. The small-angle thick door buffer hinge according to claim 1 is characterized in that: The buffer seat is provided with a slide rail for the buffer damper body to move.

3. A small-angle thick door buffer hinge according to claim 1 or 2, characterized in that: Both side edges of the buffer seat are provided with mounting grooves for mounting elastic members.

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