Hinge torsion spring type damping structure

Abstract

The application discloses a hinge torsional spring type buffering structure, which comprises a door leaf hinge box and a door frame hinge box, a first rotating arm is arranged in rotation in the door leaf hinge box, and a second rotating arm is arranged in rotation in the door frame hinge box; a driving torsional spring is arranged in the door leaf hinge box, a pressing assembly is arranged on the end of the second rotating arm, the pressing assembly comprises a compression spring and a pressing piece, one end of the compression spring is abutted against the first rotating arm, and the other end of the compression spring is abutted against the pressing piece; a first matching surface is arranged on the inner side wall of the door frame hinge box and is inclined inward from top to bottom; the driving torsional spring drives the door leaf hinge box to rotate towards the door frame hinge box, and the door leaf realizes the automatic closing function; the second rotating arm rotates downwards, drives the pressing assembly to move downwards, the compression spring makes the pressing piece match with the first matching surface, the door leaf hinge box and the door frame hinge box are prevented from rotating, the damping effect is realized, and the situation that the door leaf violently hits the door frame is avoided.

Description

Technical Field

[0001] This invention relates to the field of hinge technology, and more specifically, to a hinge torsion spring type buffer structure. Background Technology

[0002] A hinge, also known as a hinge leaf, is a component that connects two parts of an object and allows them to move. Hinges are commonly used in cabinet doors, windows, and doors.

[0003] Existing hinges only serve a single function in connecting doors and windows. For example, Chinese invention patent CN215978933U discloses a three-dimensional adjustable aluminum profile concealed hinge, including a door leaf hinge box and a door frame hinge box. The door leaf hinge box and the door frame hinge box are rotatably connected by a connecting structure, which includes a first link, a second link, a third link, and a fourth link. The door leaf hinge box and the door frame hinge box can rotate relative to each other through the hinged relationship of the first link, the second link, the third link, and the fourth link, so as to achieve the purpose of the door and window rotating relative to the door frame. However, using this hinge can only achieve ordinary installation of doors and windows, and does not have automatic closing function or buffer function, which cannot meet market demand. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a hinge torsion spring type buffer structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A hinge torsion spring type buffer structure includes a door leaf hinge box and a door frame hinge box. A first rotating arm is rotatably disposed inside the door leaf hinge box, and a second rotating arm is rotatably disposed inside the door frame hinge box. The first rotating arm and the second rotating arm are hinged to each other. A driving torsion spring is disposed inside the door leaf hinge box. One end of the driving torsion spring abuts against the inside of the door leaf hinge box, and the other end abuts against the first rotating arm. A pressing assembly is provided on the end of the second rotating arm. The pressing assembly includes a compression spring and a pressing member. One end of the compression spring abuts against the first rotating arm, and the other end abuts against the pressing member. The upper end of the inner side wall of the door frame hinge box is provided with a first mating surface that slopes inward from top to bottom; The drive torsion spring drives the door hinge box to rotate toward the door frame hinge box, the second rotating arm drives the pressing component to move downward, and the compression spring causes the pressing component to engage with the first mating surface to prevent the door hinge box and the door frame hinge box from rotating relative to each other.

[0006] The present invention further comprises: a second mating surface is provided at the lower end of the inner side wall of the door frame hinge box, which is inclined from top to bottom and outward; the driving torsion spring drives the door leaf hinge box to continue rotating toward the door frame hinge box, driving the second rotating arm to rotate downward; the compression spring causes the pressing member to cooperate with the second mating surface, driving the door leaf hinge box and the door frame hinge box to continue rotating.

[0007] The present invention further comprises: a positioning groove is provided at the lower end of the second mating surface, and the pressing member is placed in the positioning groove after passing over the second mating surface.

[0008] The present invention further includes: both ends of the first rotating arm are provided with pressing components, and the inner sidewalls of the left and right ends of the door frame hinge box are provided with a first mating surface and a second mating surface from top to bottom.

[0009] The present invention further includes two drive torsion springs at the left and right ends of the door hinge box.

[0010] The present invention further comprises: a first hinge arm is hinged to the first rotating arm, and a second hinge arm is hinged to the second rotating arm, wherein the first hinge arm and the second hinge arm are hinged together.

[0011] The beneficial effects of this invention are as follows: The hinge torsion spring type buffer structure includes a door leaf hinge box and a door frame hinge box. A first rotating arm is rotatably disposed inside the door leaf hinge box, and a second rotating arm is rotatably disposed inside the door frame hinge box. The first rotating arm and the second rotating arm are hinged to each other. A driving torsion spring is disposed inside the door leaf hinge box. One end of the driving torsion spring abuts against the inside of the door leaf hinge box, and the other end abuts against the first rotating arm. A pressing component is disposed on the end of the second rotating arm. The pressing component includes a compression spring and a pressing member. One end of the compression spring abuts against the second rotating arm, and the other end abuts against the pressing member. A first mating surface is provided on the upper end of the inner sidewall of the door frame hinge box, which is inclined inward from top to bottom. When the door closes, the drive torsion spring causes the door hinge box to rotate towards the door frame hinge box, enabling the door to close automatically. As the door hinge box rotates relative to the door frame hinge box, the second rotating arm rotates downward, causing the pressing component to move downward. The compression spring causes the pressing component to engage with the first mating surface, preventing the door hinge box and the door frame hinge box from rotating relative to each other, thus providing a damping effect and slowing down the closing speed of the door. This prevents the door from violently impacting the door frame. This product enables the door to simultaneously achieve self-closing and buffering functions, meeting people's needs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a hinge torsion spring type buffer structure according to the present invention. Figure 1 ; Figure 2This is a schematic diagram of a hinge torsion spring type buffer structure according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of a hinge torsion spring type buffer structure according to the present invention. Figure 3 ; Figure 4 This is a diagram showing the fit between the second rotating arm and the door frame hinge box of a hinge torsion spring type buffer structure according to the present invention. Figure 5 This is a diagram showing the mating of the pressure-reducing component of a hinge torsion spring type buffer structure and the door frame hinge box according to the present invention; Explanation of reference numerals in the attached drawings: 1. Door leaf hinge box; 11. First rotating arm; 111. First hinge arm; 2. Door frame hinge box; 21. Second rotating arm; 211. Second hinge arm; 22. First mating surface; 23. Second mating surface; 24. Positioning groove; 3. Drive torsion spring; 4. Pressing assembly; 41. Compression spring; 42. Pressing component. Detailed Implementation

[0013] See attached document Figures 1 to 5 The present invention provides a more detailed description of a hinge torsion spring type buffer structure.

[0014] A hinge torsion spring type buffer structure includes a door leaf hinge box 1 and a door frame hinge box 2, wherein the door leaf hinge box 1 is installed on the door leaf and the door frame hinge box 2 is installed on the door frame; a first rotating arm 11 is rotatably disposed inside the door leaf hinge box 1, and a second rotating arm 21 is rotatably disposed inside the door frame hinge box 2, the first rotating arm 11 and the second rotating arm 21 are hinged to each other, wherein a first hinge arm 111 is hinged to the first rotating arm 11, and a second hinge arm 211 is hinged to the second rotating arm 21; a driving torsion spring 3 is disposed inside the door leaf hinge box 1, one end of the driving torsion spring 3 abuts against the inside of the door leaf hinge box 1, and the other end abuts against the first rotating arm 11. The end of the second rotating arm 21 is provided with a pressing component 4, which includes a compression spring 41 and a pressing member 42. One end of the compression spring 41 abuts against the first rotating arm 11, and the other end abuts against the pressing member 42. The upper end of the inner side wall of the door frame hinge box 2 is provided with a first mating surface 22 that slopes inward from top to bottom; The drive torsion spring 3 drives the door hinge box 1 to rotate toward the door frame hinge box 2, the second rotating arm 21 drives the pressing component 4 to move downward, and the compression spring 41 causes the pressing component 42 to cooperate with the first mating surface 22 to prevent the door hinge box 1 and the door frame hinge box 2 from rotating relative to each other. When the door is closed, a forceful push causes the drive torsion spring 3 to rotate the door hinge box 1 toward the door frame hinge box 2, enabling the door to close automatically. As the door hinge box 1 rotates relative to the door frame hinge box 2, the second rotating arm 21 rotates downward, causing the pressing component 4 to move downward. The compression spring 41 causes the pressing component 42 to engage with the first mating surface 22, preventing the door hinge box 1 and the door frame hinge box 2 from rotating relative to each other, thus providing a damping effect and slowing down the closing speed of the door. This prevents the door from violently impacting the door frame. This product enables the door to simultaneously achieve self-closing and buffering functions, meeting people's needs. After the door is opened, the first rotating arm 11 will compress the drive torsion spring 3, so that the drive torsion spring 3 is in a stored state.

[0015] The lower end of the inner wall of the door frame hinge box 2 is provided with a second mating surface 23 that slopes downwards and outwards. The driving torsion spring 3 drives the door hinge box 1 to continue rotating toward the door frame hinge box 2, causing the second rotating arm 21 to rotate downwards. The compression spring 41 causes the pressing member 42 to engage with the second mating surface 23, driving the door hinge box 1 and the door frame hinge box 2 to continue rotating, providing power for the door to continue closing and preventing it from not closing tightly. The second mating surface 23 is provided when the door is closed to the 30-degree position, that is, when the door is closed to the 30-degree position under the combined action of the driving torsion spring 3 and the resistance of the first mating surface 22, the pressing member 42 will engage with the second mating surface 23 and the driving torsion spring 3 to drive the door to continue rotating, ensuring that the door is completely closed.

[0016] The second mating surface 23 has a positioning groove 24 at its lower end. The pressing member 42 passes over the second mating surface 23 and is placed in the positioning groove 24. After the door is completely closed, the pressing member 42 will be placed in the positioning groove 24, so that the door can be stably closed.

[0017] Both ends of the first rotating arm 11 are provided with pressing components 4, and the inner sidewalls of the left and right ends of the door frame hinge box 2 are provided with a first mating surface 22 and a second mating surface 23 from top to bottom; two driving torsion springs 3 are provided at the left and right ends of the door leaf hinge box 1, making the product structure more stable, coordinated and reasonable.

[0018] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A hinge torsion spring type buffer structure, comprising a door leaf hinge box and a door frame hinge box, wherein a first rotating arm is rotatably disposed within the door leaf hinge box, and a second rotating arm is rotatably disposed within the door frame hinge box, the first rotating arm and the second rotating arm being hinged to each other; characterized in that: A drive torsion spring is provided inside the door hinge box. One end of the drive torsion spring abuts against the inside of the door hinge box, and the other end abuts against the first rotating arm. A pressing assembly is provided on the end of the second rotating arm. The pressing assembly includes a compression spring and a pressing member. One end of the compression spring abuts against the second rotating arm, and the other end abuts against the pressing member. The upper end of the inner side wall of the door frame hinge box is provided with a first mating surface that slopes inward from top to bottom; The drive torsion spring drives the door hinge box to rotate toward the door frame hinge box, the second rotating arm drives the pressing component to move downward, and the compression spring causes the pressing component to engage with the first mating surface to prevent the door hinge box and the door frame hinge box from rotating relative to each other.

2. The hinge torsion spring type buffer structure according to claim 1, characterized in that: The lower end of the inner wall of the door frame hinge box is provided with a second mating surface that slopes downward and outward from top to bottom; the driving torsion spring drives the door leaf hinge box to continue rotating toward the door frame hinge box, driving the second rotating arm to rotate downward; the compression spring causes the pressing member to engage with the second mating surface, driving the door leaf hinge box and the door frame hinge box to continue rotating.

3. The hinge torsion spring type buffer structure according to claim 2, characterized in that: The lower end of the second mating surface is provided with a positioning groove, and the pressing member is placed in the positioning groove after passing over the second mating surface.

4. A hinge torsion spring type buffer structure according to claim 1, 2, or 3, characterized in that: Both ends of the first rotating arm are provided with abutting components, and the inner sidewalls of the left and right ends of the door frame hinge box are provided with a first mating surface and a second mating surface from top to bottom.

5. A hinge torsion spring type buffer structure according to claim 1, 2, or 3, characterized in that: Two drive torsion springs are installed at the left and right ends of the door hinge box.

6. A hinge torsion spring type buffer structure according to claim 1, 2, or 3, characterized in that: The first rotating arm is hinged to a first hinge arm, and the second rotating arm is hinged to a second hinge arm, wherein the first hinge arm and the second hinge arm are hinged together.

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