A hinge

Abstract

The present invention relates to the technical field of furniture hinges, and in particular to a hinge. The present invention comprises: a hinge cup, a first rotating part, a second rotating part, a U-shaped pin, a shell, a first rotating shaft, a second rotating shaft, a third rotating part, a third rotating shaft, a torsion spring, and a damper. A contact portion is provided on the end of the third rotating part close to the second rotating part, and the contact portion is in contact with the second rotating part. The torsion spring is assembled in the third rotating part, and the U-shaped portion of the torsion spring is arranged between the third rotating part and the damper. The advantage of the present invention is that the cabinet door is opened and closed by cooperating with the contact portion provided on the third rotating part and the first protrusion provided on the second rotating part. The second rotating part is in contact with the third rotating part, and the torsion spring is assembled in the third rotating part, which facilitates the installation of the torsion spring during the assembly process of the hinge. The hinge structure is simple, which reduces the complexity of the production process, improves the quality and appearance of the product, and thus effectively improves work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture hinges, in particular to a hinge. Background Art

[0002] In traditional hinges, the second rotating part and the third rotating part are usually connected to achieve rotation. Such a hinge structure is complex and takes a long time to produce and assemble. In addition, when the door panel is opened and closed for a long time, the second rotating part and the third rotating part may become loose, fall off or even be damaged, making the hinge not durable and greatly shortening the service life of the hinge. Therefore, further improvements to the existing technology are needed. Summary of the Invention

[0003] The purpose of the present invention is to provide a hinge designed to solve at least one technical problem in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following scheme: a hinge, comprising a hinge cup, a first rotating member, a second rotating member, a U-shaped pin, a housing, a first rotating shaft, a second rotating shaft, a third rotating member, a third rotating shaft, a torsion spring, and a damper, wherein one end of the first rotating member is rotatably mounted on the housing via a first rotating shaft, the other end of the first rotating member is rotatably connected to the hinge cup via one axis of the U-shaped pin, one end of the second rotating member is rotatably mounted in the housing via the second rotating shaft, and the other end of the second rotating member is rotatably connected to the hinge cup via the other axis of the U-shaped pin The cam is connected to the second rotating member by a third rotating member, wherein the third rotating member is arranged between the second rotating member and the damper, and the third rotating member is rotatably mounted on the housing via a third rotating shaft. One end of the damper is mounted in the housing via a fourth rotating shaft, and the damper is mounted on the other end of the third rotating member via a fifth rotating shaft. A contact portion is provided on the end of the third rotating member close to the second rotating member, and the contact portion is in contact with the second rotating member. The torsion spring is assembled in the third rotating member, and the U-shaped portion of the torsion spring is arranged between the third rotating member and the damper.

[0005] Wherein, a first protruding portion protruding outward is provided on a surface of the second rotating member facing the third rotating member.

[0006] Wherein, an arc surface portion is provided at a position where the first protrusion is close to the third rotating member and contacts the contact portion provided on the third rotating member.

[0007] Wherein, bending portions are respectively provided on the left and right sides of the third rotating member, and the bending portions are arranged opposite to the U-shaped portion of the torsion spring.

[0008] Wherein, a placement cavity is formed between the damper and the contact portion, and the U-shaped portion of the torsion spring is arranged toward the placement cavity.

[0009] Wherein, the height of the top end of the first protrusion relative to the horizontal plane is smaller than the height of the top end of the contact portion relative to the horizontal plane.

[0010] Wherein, a force-bearing surface is provided on the first convex portion and at a position connected to the arc surface portion, and the force-bearing surface is provided corresponding to the contact portion.

[0011] Wherein, the third rotating member is provided with second protrusions on the left and right side surfaces facing the damper respectively, and the fifth rotating shaft is arranged on the second protrusions.

[0012] Wherein, the third rotating member is in a convex shape.

[0013] Wherein, the force-bearing surface is parallel or inclined relative to the horizontal plane.

[0014] The advantages of the present invention are: the cabinet door is opened and closed by cooperating with the contact portion provided on the third rotating member and the first protrusion provided on the second rotating member, the second rotating member and the third rotating member are in contact, and the torsion spring is assembled in the third rotating member, which facilitates the installation of the torsion spring during the assembly process of the hinge. The hinge structure is simple and easy to install, which reduces the complexity of the production process, improves the quality and appearance of the product, and thus effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a hinge Figure 1 ;

[0016] Figure 2 A schematic diagram of a hinge Figure 2 ;

[0017] Figure 3 A schematic diagram of a hinge Figure 3 ;

[0018] Figure 4 A schematic diagram of a hinge Figure 4 ;

[0019] Figure 5 is a schematic diagram of a second rotating member of a hinge;

[0020] Figure 6 This is a schematic diagram of the third rotating member of a hinge. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that each technical feature and the overall technical solution of the present invention can be understood intuitively and vividly, but they should not be understood as limiting the scope of protection of the present invention.

[0022] In the description of the present invention, if any directional description is involved, such as "upper," "lower," "front," "back," "left," "right," etc., indicating directions or positional relationships, these are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they should not be understood as limiting the present invention. When a feature is referred to as being "disposed," "fixed," or "connected" to another feature, it may be directly disposed, fixed, or connected to the other feature, or indirectly disposed, fixed, or connected to the other feature.

[0023] In the description of the present invention, if the word "several" is mentioned, it means one or more; if the word "multiple" is mentioned, it means more than two; if the word "greater than," "less than," or "exceeds," it should be understood as excluding the number itself; if the word "above," "below," or "within" is mentioned, it should be understood as including the number itself. If the word "first" or "second" is mentioned, it should be understood as distinguishing technical features and should not be understood as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] In addition, unless otherwise defined, technical and scientific terms used in this invention have the same meanings as those commonly understood by those skilled in the art. The terms used in this invention are intended to describe specific embodiments only and are not intended to limit the invention. It should be understood that when used in this specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0025] Example: Figure 1-6As shown, a hinge includes a hinge cup 11, a first rotating member 12, a second rotating member 13, a U-shaped pin 14, a housing 15, a first rotating shaft 16, a second rotating shaft 17, a third rotating member 18, a third rotating shaft 19, a torsion spring 20, and a damper 21. One end of the first rotating member 12 is rotatably mounted on the housing 15 through the first rotating shaft 16, and the other end of the first rotating member 12 is rotatably connected to the hinge cup 11 through an axis of the U-shaped pin 14. One end of the second rotating member 13 is rotatably mounted in the housing 15 through the second rotating shaft 17, and the other end of the second rotating member 13 is rotatably connected to the hinge cup 11 through the other axis of the U-shaped pin 14. The third rotating member 18 is arranged between the second rotating member 13 and the The third rotating member 18 is rotatably mounted on the housing 15 through the third rotating shaft 19, one end of the damper 21 is mounted in the housing 15 through the fourth rotating shaft 22, and the damper 21 is mounted on the other end of the third rotating member 18 through the fifth rotating shaft 23. A contact portion 181 is provided at one end of the third rotating member 18 close to the second rotating member 13, and the contact portion 181 contacts the second rotating member 13. The torsion spring 20 is assembled in the third rotating member 18, and the U-shaped portion of the torsion spring 20 is arranged between the third rotating member 18 and the damper 21. Most of the hinge is installed on the cabinet, and the hinge opens and closes the cabinet door by cooperating with the second rotating member through the contact portion provided by the third rotating member. The torsion spring is assembled in the third rotating member, which facilitates the installation of the torsion spring during the assembly process and improves work efficiency.

[0026] When the cabinet door is in the open state, when an external force pushes to close the cabinet door, the hinge cup rotates counterclockwise due to the external force, and the hinge cup drives the first rotating member and the second rotating member connected to the U-shaped pin shaft to rotate upward through the U-shaped pin shaft, so that the end of the second rotating member connected to the shell rotates downward, and the second rotating member pushes the third rotating member to rotate above the second rotating member. The third rotating member pulls the piston rod of the damper under the joint action of the torsion spring, so that the cabinet door slowly rotates and closes.

[0027] When the cabinet door is in the closed state and an external force is used to pull it open, the hinge cup rotates clockwise due to the external force, and the hinge cup drives the first rotating member and the second rotating member connected to the U-shaped pin shaft to rotate downward through the U-shaped pin shaft, so that the end of the second rotating member connected to the outer shell rotates upward, and the contact portion of the third rotating member contacts one end of the second rotating member, so that the cabinet door opens quickly.

[0028] A first protruding portion 131 protruding outward is provided on a surface of the second rotating member 13 facing the third rotating member 18 , and the first protruding portion is matched with the contact portion.

[0029] Among them, an arcuate surface 132 is provided at the position where the first protrusion 131 is close to the third rotating member 18 and contacts the contact portion 181 provided on the third rotating member 18. The arcuate surface reduces the mutual wear between the first protrusion and the contact portion when they contact, making the sliding smoother.

[0030] A bending portion 182 is provided on the left and right sides of the third rotating member 18 , respectively. The bending portion 182 is arranged opposite to the U-shaped portion of the torsion spring 20 . The torsion spring is assembled in the bending portion through the arrangement of the bending portion.

[0031] Among them, a placement cavity is formed between the damper 21 and the contact portion 181, and the U-shaped portion of the torsion spring 20 is arranged toward the placement cavity. The placement cavity limits the U-shaped portion of the torsion spring to prevent the U-shaped portion of the torsion spring from shaking during use, making the hinge smoother in use and also facilitating the installation of the hinge during production.

[0032] The height of the top end of the first protrusion 131 relative to the horizontal plane is smaller than the height of the top end of the contact portion 181 relative to the horizontal plane.

[0033] Among them, a force-bearing surface 133 is provided on the first raised portion 131 and connected to the arc surface portion 132. The force-bearing surface 133 is arranged corresponding to the contact portion 181. The setting of the force-bearing surface increases the contact area between the force-bearing surface and the contact portion, expands the pressure-bearing area of ​​the force-bearing surface, and improves the stability when the contact portion and the force-bearing surface are in contact.

[0034] Among them, the third rotating member 18 is respectively provided with a second protrusion 183 on the left and right sides facing the damper 21, and the fifth rotating shaft 23 is arranged on the second protrusion 183. The fifth rotating shaft provides a movable space for the U-shaped part of the torsion spring through the arrangement of the second protrusion.

[0035] The third rotating member 18 is in a convex shape, and the convex shape matches the torsion spring so that the torsion spring is assembled in the third rotating member.

[0036] The force-bearing surface 133 is parallel to or inclined relative to the horizontal plane. The inclined setting of the force-bearing surface improves the anti-slip ability when in contact with the contact part and enhances the stability.

[0037] Wherein, it also includes an inner shell, and the inner shell is installed in the outer shell through fasteners.

[0038] Among them, the left and right side walls of the inner shell are provided with through holes corresponding to the third rotating shaft, and the third rotating shaft is assembled on the outer shell through the through holes. The through holes provide space for the third rotating shaft, so that the inner shell and the third rotating shaft are not easily interfered with each other, thereby improving the smoothness during assembly.

[0039] The inner shell is U-shaped, and a first buckle is provided at the vertical end of the inner shell close to the third rotating part, and a second buckle is provided at the end of the inner shell away from the third rotating part, and an installation space for installing the base is formed between the first buckle and the second buckle.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A hinge comprising a hinge cup, a first rotating member, a second rotating member, a U-shaped pin, a housing, a first rotating shaft, a second rotating shaft, a third rotating member, a third rotating shaft, a torsion spring, and a damper, wherein one end of the first rotating member is rotatably mounted on the housing via the first rotating shaft, the other end of the first rotating member is rotatably connected to the hinge cup via an axis of the U-shaped pin, one end of the second rotating member is rotatably mounted in the housing via the second rotating shaft, the other end of the second rotating member is rotatably connected to the hinge cup via the other axis of the U-shaped pin, the third rotating member is arranged between the second rotating member and the damper, the third rotating member is rotatably mounted on the housing via the third rotating shaft, one end of the damper is mounted in the housing via a fourth rotating shaft, and the damper is mounted on the other end of the third rotating member via a fifth rotating shaft, characterized in that: A contact portion is provided on one end of the third rotating member close to the second rotating member, and the contact portion is in contact with the second rotating member. The torsion spring is assembled in the third rotating member, and the U-shaped portion of the torsion spring is arranged between the third rotating member and the damper. The second rotating member is provided with a first protruding portion protruding outward on a side facing the third rotating member, and an arc portion is provided at the position where the first protrusion is close to the third rotating member and contacts the contact portion provided on the third rotating member.

2. A hinge according to claim 1, characterized in that: Bending portions are respectively provided on the left and right sides of the third rotating member, and the bending portions are arranged opposite to the U-shaped portion of the torsion spring.

3. The hinge according to claim 1, characterized in that: A placement cavity is formed between the damper and the contact portion, and the U-shaped portion of the torsion spring is arranged toward the placement cavity.

4. The hinge according to claim 1, wherein: A height of a top end of the first protrusion relative to a horizontal plane is smaller than a height of a top end of the contact portion relative to the horizontal plane.

5. The hinge according to claim 1, characterized in that: A force-bearing surface is provided on the first convex portion and at a position connected to the arcuate portion, and the force-bearing surface is provided corresponding to the contact portion.

6. The hinge according to claim 1, characterized in that: The third rotating member is provided with second protrusions on the left and right sides facing the damper, respectively, and the fifth rotating shaft is provided on the second protrusions.

7. A hinge according to any one of claims 1 to 6, characterized in that: The third rotating member is in a convex shape.

8. The hinge according to claim 5, characterized in that: The force-bearing surface is parallel or inclined relative to the horizontal plane.

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