Door hinge

Abstract

The utility model relates to a door hinge which comprises a fixing block installed on a door, a U-shaped pin, a crank, a rocker, a first rotating shaft, a second rotating shaft, an installation base assembly, a torsion spring, a directional piece and a buffering assembly. The U-shaped pin is inserted into the fixed block, one shaft of the U-shaped pin is rotationally connected with one end part of the crank, and the other shaft of the U-shaped pin is rotationally connected with one end part of the rocker; the other end part of the crank is rotationally mounted in the mounting seat assembly through a first rotating shaft, and the other end part of the rocker is rotationally mounted in the mounting seat assembly through a second rotating shaft; the second rotating shaft is sleeved with the torsion spring, the torsion spring abuts against the installation base assembly and the crank, the buffering assembly is installed on the installation base assembly through a directional piece and can move towards the second rotating shaft, the other end of the crank is matched with the buffering assembly, and a buffering shaft of the buffering assembly abuts against the second rotating shaft. The 26-cup door hinge has the advantages that the structure is compact, and the 26-cup door hinge has a buffering function.

Description

Technical Field

[0001] The utility model relates to a door hinge, in particular to a 26-cup door hinge, and is also applicable to other cup-shaped door hinges. Background Art

[0002] At present, the 26-cup door hinge does not have this structural buffering function. The 26-cup door hinge is rigidly rotated to close when opened or closed, which results in a poor user experience. The buffer shaft of other door hinge buffer components rests on the torsion spring, and the structure is larger in size. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a door hinge with a compact structure and a 26-cup door hinge with a buffer function.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows: it is a door hinge, characterized in that it includes:

[0005] A fixed block, a U-shaped pin, a crank and a rocker are installed on the door; the U-shaped pin is inserted into the fixed block, one axis of the U-shaped pin is rotatably connected to one end of the crank, and the other axis of the U-shaped pin is rotatably connected to one end of the rocker;

[0006] A first rotating shaft, a second rotating shaft and a mounting seat assembly; the other end of the crank is rotatably mounted in the mounting seat assembly via the first rotating shaft, and the other end of the rocker is rotatably mounted in the mounting seat assembly via the second rotating shaft;

[0007] A torsion spring, a directional member and a buffer assembly; the torsion spring is sleeved on the second rotating shaft, and the torsion spring rests on the mounting seat assembly and the crank respectively. The buffer assembly is installed on the mounting seat assembly through the directional member and can move toward the second rotating shaft. The other end of the crank cooperates with the buffer assembly to drive the buffer assembly to move, and the buffer shaft of the buffer assembly rests on the second rotating shaft.

[0008] In the present technical solution, the buffer assembly includes a cylinder seat, a cylinder and a cylinder push block. The cylinder is installed on the cylinder seat, and the cylinder seat is installed on the cylinder push block. The cylinder push block is installed on the mounting seat assembly through a directing member and can move toward the second rotating shaft. A tooth groove is provided on the cylinder push block, and an external tooth is provided on the other end of the crank. The external tooth and the tooth groove engage with each other so that the other end of the crank drives the buffer assembly to move, and the buffer shaft of the cylinder rests on the second rotating shaft.

[0009] In this technical solution, the directing member is a supporting column, and the supporting column and the first rotating shaft are located below the buffer assembly and support the buffer assembly. The supporting column and the first rotating shaft cooperate with the inner walls on both sides of the mounting seat assembly to form an insertion cavity, and the cylinder push block is in the insertion cavity and can move toward the second rotating shaft.

[0010] In this technical solution, the mounting seat assembly includes an adjustment seat and a mounting base, the adjustment seat is installed on the mounting base, the other end of the crank is installed in the adjustment seat by rotating through the first rotating shaft, and the other end of the rocker is installed in the adjustment seat by rotating through the second rotating shaft, and the supporting column and the first rotating shaft cooperate with the inner walls on both sides of the adjustment seat to form a cavity of the insertion cavity.

[0011] In this technical solution, mounting holes or mounting grooves are provided on both side walls of the cylinder push block, and positioning protrusions are provided on both side walls of the cylinder seat. The protrusions for positioning the cylinder seat are inserted into the mounting holes or mounting grooves so that the cylinder is installed on the cylinder seat, and the cylinder seat is installed on the cylinder push block.

[0012] In this technical solution, the oil cylinder push block is in a "U" shape.

[0013] In this technical solution, the torsion spring is a double torsion spring.

[0014] In this technical solution, a lower limit protrusion is provided at the lower portion of the cylinder seat. After the cylinder seat moves toward the second rotating shaft, the lower limit protrusion abuts against the first rotating shaft.

[0015] Compared with the prior art, the utility model has the following advantages: compact structure, and the 26-cup door hinge has a buffer function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 yes Figure 3 AA section view;

[0020] Figure 5 yes Figure 3 BB cross-sectional view

[0021] Figure 6 This is a schematic diagram of the structure of the utility model after removing the mounting base assembly;

[0022] Figure 7 yes Figure 6 Schematic diagram of the structure of the rearview orientation;

[0023] Figure 8 yes Figure 6 Exploded view after removing the fixing block;

[0024] Figure 9This is a schematic diagram of the structure of the second 26 cups of the utility model;

[0025] Figure 10 It is a structural diagram of the third 26 cups of the utility model. DETAILED DESCRIPTION

[0026] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to facilitate understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0027] like Figures 1 to 10 As shown, it is a door hinge, comprising:

[0028] A fixed block 1, a U-shaped pin 2, a crank 3 and a rocker 6 are installed on the door; the U-shaped pin 2 is inserted into the fixed block 1, one axis of the U-shaped pin 2 is rotatably connected to one end of the crank 3, and the other axis of the U-shaped pin 2 is rotatably connected to one end of the rocker 6;

[0029] A first rotating shaft 4, a second rotating shaft 5 and a mounting seat assembly; the other end of the crank 3 is rotatably mounted in the mounting seat assembly via the first rotating shaft 4, and the other end of the rocker 6 is rotatably mounted in the mounting seat assembly via the second rotating shaft 5;

[0030] Torsion spring 7, directional member and buffer assembly; the torsion spring 7 is sleeved on the second rotating shaft 5, and the torsion spring 7 rests on the mounting seat assembly and the crank 3 respectively. The buffer assembly is installed on the mounting seat assembly through the directional member and can move toward the second rotating shaft 5. The other end of the crank 3 cooperates with the buffer assembly to drive the buffer assembly to move, and the buffer shaft 811 of the buffer assembly rests on the second rotating shaft 5.

[0031] When in use, the buffer shaft 811 of the buffer assembly directly hits the second rotating shaft 5, and the buffer assembly structure is more compact. The buffer shaft 811 of the buffer assembly plays a buffering role, causing the fixing block 1 to close slowly.

[0032] In this embodiment, the buffer assembly includes a cylinder seat 82, a cylinder 81 and a cylinder push block 84. The cylinder 81 is mounted on the cylinder seat 82, and the cylinder seat 82 is mounted on the cylinder push block 84. The cylinder push block 84 is mounted on the mounting seat assembly through a directional member and can move toward the second rotating shaft 5. A tooth groove 841 is provided on the cylinder push block 84, and an external tooth 31 is provided at the other end of the crank 3. The external tooth 31 and the tooth groove 841 engage with each other so that the other end of the crank 3 drives the buffer assembly to move, and the buffer shaft 811 of the cylinder 81 rests on the second rotating shaft 5. During operation, the crank 3 rotates to drive the external tooth 31 to rotate, and the rotation of the external tooth 31 drives the tooth groove 841 to rotate, thereby driving the cylinder push block 84 to move toward the second rotating shaft 5. The cylinder push block 84,

[0033] In this embodiment, the directing member is a supporting column 10, and the supporting column 10 and the first rotating shaft 4 are located below the buffer assembly and support the buffer assembly. The supporting column 10 and the first rotating shaft 4 cooperate with the inner walls on both sides of the mounting seat assembly to form an insertion cavity 91, and the cylinder push block 84 is in the insertion cavity 91 and can move toward the second rotating shaft 5.

[0034] In this embodiment, the mounting seat assembly includes an adjustment seat 9 and a mounting base 11. The adjustment seat 9 is installed on the mounting base 11. The other end of the crank 3 is rotatably installed in the adjustment seat 9 through the first rotating shaft 4. The other end of the rocker 6 is rotatably installed in the adjustment seat 9 through the second rotating shaft 5. The supporting column 10 and the first rotating shaft 4 cooperate with the inner walls on both sides of the adjustment seat 9 to form a cavity of the insertion cavity 91.

[0035] In this embodiment, mounting holes or mounting grooves 842 are provided on both side walls of the cylinder push block 84, and positioning protrusions 821 are provided on both side walls of the cylinder seat 82. The protrusions 821 for positioning the cylinder seat 82 are inserted into the mounting holes or mounting grooves 842 so that the cylinder 81 is installed on the cylinder seat 82, and the cylinder seat 82 is installed on the cylinder push block 84.

[0036] In this embodiment, the oil cylinder push block 84 is in a "U" shape.

[0037] In this embodiment, the torsion spring 7 is a double torsion spring.

[0038] In this embodiment, a lower limit protrusion 822 is provided at the lower portion of the cylinder seat 82 . After the cylinder seat 82 moves toward the second rotating shaft 5 , the lower limit protrusion 822 abuts against the first rotating shaft 4 .

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and purpose of the present invention are still within the scope of protection of the present invention.

Claims

1. A door hinge, characterized in that include: A fixed block (1), a U-shaped pin (2), a crank (3) and a rocker (6) are mounted on the door; the U-shaped pin (2) is inserted into the fixed block (1), one axis of the U-shaped pin (2) is rotatably connected to one end of the crank (3), and the other axis of the U-shaped pin (2) is rotatably connected to one end of the rocker (6); A first rotating shaft (4), a second rotating shaft (5) and a mounting seat assembly; the other end of the crank (3) is rotatably mounted in the mounting seat assembly via the first rotating shaft (4), and the other end of the rocker (6) is rotatably mounted in the mounting seat assembly via the second rotating shaft (5); A torsion spring (7), a directional member, and a buffer assembly; the torsion spring (7) is sleeved on the second rotating shaft (5), the torsion spring (7) respectively abuts against the mounting seat assembly and the crank (3), the buffer assembly is mounted on the mounting seat assembly via the directional member and can move toward the second rotating shaft (5), the other end of the crank (3) cooperates with the buffer assembly to drive the buffer assembly to move, and the buffer shaft (811) of the buffer assembly abuts against the second rotating shaft (5).

2. The door hinge according to claim 1, characterized in that The buffer assembly comprises a cylinder seat (82), a cylinder (81) and a cylinder push block (84), wherein the cylinder (81) is mounted on the cylinder seat (82), the cylinder seat (82) is mounted on the cylinder push block (84), the cylinder push block (84) is mounted on the mounting seat assembly through a directional member and can move toward the second rotating shaft (5), a tooth groove (841) is provided on the cylinder push block (84), and an external tooth (31) is provided on the other end of the crank (3), wherein the external tooth (31) and the tooth groove (841) are engaged with each other so that the other end of the crank (3) drives the buffer assembly to move, and the buffer shaft (811) of the cylinder (81) abuts against the second rotating shaft (5).

3. The door hinge according to claim 2, characterized in that The directional member is a supporting column (10), and the supporting column (10) and the first rotating shaft (4) are located below the buffer assembly and support the buffer assembly. The supporting column (10) and the first rotating shaft (4) cooperate with the inner walls on both sides of the mounting seat assembly to form an insertion cavity (91), and the oil cylinder push block (84) is in the insertion cavity (91) and can move toward the second rotating shaft (5).

4. The door hinge according to claim 3, characterized in that The mounting seat assembly comprises an adjustment seat (9) and a mounting base (11), wherein the adjustment seat (9) is mounted on the mounting base (11), the other end of the crank (3) is mounted in the adjustment seat (9) by rotating through a first rotating shaft (4), the other end of the rocker (6) is mounted in the adjustment seat (9) by rotating through a second rotating shaft (5), and the supporting column (10) and the first rotating shaft (4) cooperate with the inner walls on both sides of the adjustment seat (9) to form a cavity of the insertion cavity (91).

5. The door hinge according to claim 2, characterized in that Mounting holes or mounting grooves (842) are provided on both side walls of the oil cylinder push block (84), and positioning protrusions (821) are provided on both side walls of the oil cylinder seat (82). The protrusions (821) of the positioning oil cylinder seat (82) are inserted into the mounting holes or mounting grooves (842) so that the oil cylinder (81) is mounted on the oil cylinder seat (82), and the oil cylinder seat (82) is mounted on the oil cylinder push block (84).

6. The door hinge according to claim 2 or 5, characterized in that The oil cylinder push block (84) is in a "U" shape.

7. The door hinge according to claim 1, characterized in that The torsion spring (7) is a double torsion spring.

8. The door hinge according to claim 2 or 5, characterized in that A lower limit protrusion (822) is provided at the lower portion of the oil cylinder seat (82). After the oil cylinder seat (82) moves toward the second rotating shaft (5), the lower limit protrusion (822) abuts against the first rotating shaft (4).

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