Hinge with opening and closing buffer
By arranging the buffer laterally within the hinge housing, the outer rocker arm assembly interacts with the buffer during opening and closing, solving the problem that traditional top and bottom hinges cannot achieve opening buffering and realizing a smooth buffering effect during the opening and closing of the door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FO SHAN SHI XING YUAN WANG WU JIN YOU XIAN GONG SI
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional hinges only provide a closing buffer, but cannot provide an opening buffer, which causes impact and vibration to occur when the door is opened.
The buffer is arranged laterally along the length of the hinge housing so that the outer rocker arm assembly can interact with the buffer during opening and closing. The buffer absorbs the kinetic energy of the outer rocker arm assembly, achieving a smooth opening and closing buffering effect.
This design achieves a good buffering effect during both opening and closing of the door, avoiding the impact and vibration at the closing end of traditional hinges, and improving the transmission efficiency and stability during hinge movement.
Smart Images
Figure CN224413402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of furniture hardware accessories, specifically to a hinge with opening and closing buffer. Background Technology
[0002] Existing top-and-bottom hinges have a damper vertically positioned inside the hinge housing. When the outer rocker arm closes, it acts on the damper to achieve a soft closing of the hinge. For example, Chinese patent application ZL202122491741.2 discloses a double-spring heavy-duty top-and-bottom hinge, which includes a fixed housing and a movable component. The fixed housing contains a middle plate, which is connected to the movable component via a first and a second rocker arm. The fixed housing also contains an adjusting seat, which is positioned relative to the middle plate in the front-to-back direction. The adjusting seat is screwed with front and rear adjusting screws, which are rotatably connected to the fixed housing. The adjusting seat has a groove, and the inner wall of the fixed housing has an inner protrusion that slides linearly through the corresponding groove. This top-and-bottom hinge only provides a closing damping effect; however, the automatic opening of the hinge is achieved through spring-driven elastic opening. Therefore, a hinge with opening and closing damping is also needed. Utility Model Content
[0003] This invention proposes a hinge with opening and closing buffer. This hinge arranges the buffer laterally along the length of the hinge housing, allowing the outer rocker arm assembly to interact with the buffer during both opening and closing. Compared to traditional vertically arranged buffers, this lateral arrangement more effectively utilizes the internal space of the hinge housing, resulting in a more rational installation position for the buffer. When the outer rocker arm assembly rotates to its position acting on the buffer during hinge opening, the buffer absorbs the kinetic energy of the outer rocker arm assembly, achieving a smooth and buffered opening effect. This design overcomes the technical deficiency of traditional hinges, which can only achieve closing buffering but not opening buffering, ensuring good buffering during both opening and closing of the door.
[0004] A hinge with opening and closing buffer designed for this purpose includes a buffer disposed in the hinge housing and a hinge cup connected to an outer rocker arm assembly, one end of which is rotatably disposed in the hinge housing.
[0005] The buffer is arranged laterally along the length of the hinge housing and cooperates with the outer rocker arm assembly when it rotates. When the outer rocker arm assembly rotates to the position acting on the buffer during the hinge opening process, the buffer opening of the hinge is realized.
[0006] When the outer rocker arm assembly rotates to the position acting on the buffer during the closing process, it achieves a buffered closure of the hinge.
[0007] The hinge housing is equipped with an elastic component;
[0008] The first end of the elastic component acts inside the hinge housing and forms point A, and the second end of the elastic component acts on the outer rocker arm assembly and forms point B.
[0009] The pivot point of the external rocker arm assembly on the hinge housing is C;
[0010] When the outer rocker arm assembly rotates to the point of action A, point of action B and the pivot point C during the hinge opening and closing process, a critical point is formed; when the outer rocker arm assembly rotates past the critical point during the hinge opening and closing process and acts on the buffer, the buffer deceleration of the hinge opening and closing process is realized.
[0011] The outer rocker arm assembly is provided with an extension arm that cooperates with the second end of the elastic component. The second end of the elastic component is provided with a recess, and the extension arm is positioned in the recess.
[0012] The recessed area has a concave arc surface, and one end of the extended support arm forms an arc-shaped point contact, line contact, or surface contact with the concave arc surface of the recessed area during the rotation of the outer rocker arm assembly.
[0013] The hinge housing is provided with a connector that is rotatably connected to the outer rocker arm assembly. The connector is provided with an installation slot, and the elastic component is installed in the installation slot.
[0014] The hinge housing is provided with an adjustment fixing seat, and the adjustment fixing seat is provided with an assembly groove. The assembly groove extends radially along the length of the hinge housing, and the buffer is installed in the assembly groove.
[0015] The side of the adjusting fixed seat has an opening that connects to the assembly groove. During rotation, the outer rocker arm assembly acts on the buffer along the opening on the side of the adjusting fixed seat.
[0016] The adjusting base and the connecting member are positioned together. The adjusting base is provided with a first adjusting member for adjusting the relative front-to-back position between the hinge cup and the hinge housing, and a second adjusting member for adjusting the relative left-to-right position between the hinge cup and the hinge housing.
[0017] The adjusting fixed seat is provided with a positioning protrusion, and the connecting member is provided with a positioning groove. The positioning protrusion is embedded in the positioning groove so that the adjusting fixed seat and the connecting member are positioned and connected. The hinge housing is provided with a guide groove corresponding to the positioning protrusion to constrain the adjusting fixed seat to move back and forth along the hinge housing. When the first adjusting member rotates, the adjusting fixed seat drives the hinge cup to move back and forth through the connecting member and the outer rocker arm assembly.
[0018] The adjusting fixed seat is provided with a first inclined guide block, and the connecting member is provided with an inclined groove. The first inclined guide block is embedded in the inclined groove. The second adjusting member is threadedly connected to the first inclined guide block. When the second adjusting member rotates, the first inclined guide block moves back and forth on the adjusting fixed seat and drives the connecting member, the outer rocker arm assembly and the hinge cup to move left and right through the inclined groove.
[0019] The beneficial technical effects of this utility model are as follows:
[0020] This hinge with opening and closing buffers arranges the buffer laterally along the length of the hinge housing, allowing the outer rocker arm assembly to interact with the buffer during both opening and closing. Compared to traditional vertically positioned buffers, this lateral arrangement utilizes the internal space of the hinge housing more effectively, resulting in a more rational installation position for the buffer. When the outer rocker arm assembly rotates to its position acting on the buffer during hinge opening, the buffer absorbs the kinetic energy of the outer rocker arm assembly, achieving a smooth buffering opening effect. This design overcomes the technical limitation of traditional top-and-bottom hinges, which can only achieve closing buffering but not opening buffering, ensuring good buffering performance for the door during both opening and closing. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of a hinge according to an embodiment of the present invention.
[0022] Figure 2 This is an exploded view of the assembly structure of a hinge according to an embodiment of the present invention.
[0023] Figure 3 This is a schematic diagram of the internal cross-sectional structure of a hinge according to an embodiment of the present invention.
[0024] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the hinge in another direction according to an embodiment of the present invention. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0026] See Figures 1-4A hinge with opening and closing buffer includes a buffer 4 disposed in the hinge housing 1 and a hinge cup 5 connected to an outer rocker arm assembly 3, one end of which is rotatably disposed in the hinge housing 1.
[0027] The buffer 4 is arranged laterally along the length of the hinge housing 1 and cooperates with the outer rocker arm assembly 3 when it rotates. When the outer rocker arm assembly 3 rotates to the position acting on the buffer 4 during the hinge opening process, the buffer opening of the hinge is realized.
[0028] This hinge with opening and closing buffer arranges the buffer 4 laterally along the length of the hinge housing 1, allowing the outer rocker arm assembly 3 to interact with the buffer 4 during both opening and closing. Compared to traditional vertically arranged buffers, this lateral arrangement makes more efficient use of the internal space of the hinge housing 1, resulting in a more rational installation position for the buffer 4. When the outer rocker arm assembly 3 rotates to the position acting on the buffer 4 during hinge opening, the buffer 4 absorbs the kinetic energy of the outer rocker arm assembly 3, achieving a smooth buffering opening effect. This design overcomes the technical deficiency of traditional top and bottom hinges, which can only achieve closing buffering but not opening buffering, ensuring good buffering effect for the door during both opening and closing.
[0029] When the outer rocker arm assembly 3 rotates to the position acting on the buffer 4 during the closing process, the hinge is closed with a buffer.
[0030] When the outer rocker arm assembly 3 rotates to the position acting on the buffer 4 during the closing process, it can also achieve the buffering closing function. This two-way buffering design allows the door to obtain a smooth buffering effect throughout the entire movement, avoiding the impact and vibration generated at the closing end of traditional hinges. The lateral arrangement of the buffer 4 allows it to better adapt to the movement trajectory of the outer rocker arm assembly 3, providing corresponding buffering force in both the opening and closing directions.
[0031] The hinge housing 1 is provided with an elastic component 2;
[0032] The first end of the elastic component 2 acts inside the hinge housing 1 and forms the point of action A, and the second end of the elastic component 2 acts on the outer rocker arm assembly 3 and forms the point of action B.
[0033] The rotation fulcrum of the outer rocker arm assembly 3 on the hinge housing 1 is C;
[0034] When the outer rocker arm assembly 3 rotates to the point of action A, the point of action B and the pivot point C being collinear during the hinge opening and closing process, a critical point is formed; when the outer rocker arm assembly 3 rotates past the critical point during the hinge opening and closing process and acts on the buffer 4, the buffer deceleration of the hinge opening and closing process is realized.
[0035] The outer rocker arm assembly 3 can automatically open or close after passing the critical point, while the buffer 4 provides buffering and deceleration. The arrangement of the elastic component 2 ensures that the outer rocker arm assembly 3 can obtain different motion characteristics before and after the critical point. Before the critical point, the elastic component 2 provides the main driving force, while after the critical point, the buffer 4 provides the buffering force.
[0036] The outer rocker arm assembly 3 is provided with an extension arm 301 that mates with the second end of the elastic component 2. The second end of the elastic component 2 has a recess 201, and the extension arm 301 is positioned on the recess 201, allowing the force of the elastic component 2 to be more effectively converted into the rotational torque of the outer rocker arm assembly 3. The recess 201 ensures the connection stability between the extension arm 301 and the elastic component 2, preventing loosening or misalignment during long-term use. This structural design improves the transmission efficiency of the hinge, ensuring smoother and more reliable force transmission during hinge movement.
[0037] The recess 201 has a concave arc surface, and one end of the extended support arm 301 forms an arc-shaped point contact, line contact, or surface contact with the concave arc surface of the recess 201 during the rotation of the outer rocker arm assembly 3. The arc surface contact design makes the contact between the outer rocker arm assembly 3 and the elastic component 2 smoother during rotation, reducing frictional resistance and wear. The shape of the concave arc surface can adapt to the contact requirements of the outer rocker arm assembly 3 at different rotation angles, ensuring the continuity and stability of force transmission.
[0038] The hinge housing 1 is provided with a connector 7 that is rotatably connected to the outer rocker arm assembly 3. The connector 7 is provided with an installation slot 701, and the elastic component 2 is installed in the installation slot 701.
[0039] The elastic component 2 includes a transmission rod and a spring sleeved on the outside of the transmission rod. The recess 201 is provided on the outside of the head of the transmission rod. The first end of the spring abuts against the inside of the head of the transmission rod, and the second end of the spring abuts against the mounting groove 701.
[0040] The hinge housing 1 is provided with an adjustment fixing seat 6, and the adjustment fixing seat 6 is provided with an assembly groove 601. The assembly groove 601 extends radially along the length direction of the hinge housing 1, and the buffer 4 is installed in the assembly groove 601.
[0041] The side of the adjusting fixed seat 6 is provided with an opening that connects to the assembly groove 601. During rotation, the outer rocker arm assembly 3 acts on the buffer 4 along the opening on the side of the adjusting fixed seat 6.
[0042] The adjusting fixing seat 6 and the connecting member 7 are positioned together. The adjusting fixing seat 6 is provided with a first adjusting member 8 for adjusting the relative front-to-back position between the hinge cup 5 and the hinge housing 1, and a second adjusting member 9 for adjusting the relative left-to-right position between the hinge cup 5 and the hinge housing 1.
[0043] The adjusting fixed seat 6 is provided with a positioning protrusion 602, and the connecting member 7 is provided with a positioning groove 702. The positioning protrusion 602 is embedded in the positioning groove 702 so that the adjusting fixed seat 6 and the connecting member 7 are positioned together. The hinge housing 1 is provided with a guide groove 101 corresponding to the positioning protrusion 602 to constrain the adjusting fixed seat 6 to move back and forth along the hinge housing 1. When the first adjusting member 8 rotates, the adjusting fixed seat 6 drives the hinge cup 5 to move back and forth through the connecting member 7 and the outer rocker arm assembly 3.
[0044] The adjusting base 6 is provided with a first inclined guide block 603, and the connecting member 7 is provided with an inclined groove 703. The first inclined guide block 603 is embedded in the inclined groove 703. The second adjusting member 9 is threadedly connected to the first inclined guide block 603. When the second adjusting member 9 rotates, the first inclined guide block 603 moves back and forth on the adjusting base 6 and drives the connecting member 7, the outer rocker arm assembly 3 and the hinge cup 5 to move left and right through the inclined groove 703.
[0045] When the connector 7 moves left and right, the positioning groove 702 and the positioning protrusion 602 move relative to each other. The length of the positioning groove 702 is greater than that of the positioning protrusion 602.
[0046] The first adjusting component 8 and the second adjusting component 9 are adjusting screws.
[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A hinge with opening and closing buffer, comprising a buffer (4) disposed within a hinge housing (1) and a hinge cup (5) connected to an outer rocker arm assembly (3), one end of the outer rocker arm assembly (3) being rotatably disposed within the hinge housing (1), characterized in that: The buffer (4) is arranged laterally along the length of the hinge housing (1) and cooperates with the outer rocker arm assembly (3) when it rotates. When the outer rocker arm assembly (3) rotates to the position acting on the buffer (4) during the hinge opening process, the buffer opening of the hinge is realized.
2. The hinge with opening and closing buffering according to claim 1, characterized in that: When the outer rocker arm assembly (3) rotates to the position acting on the buffer (4) during the closing process, it achieves the buffered closure of the hinge.
3. The hinge with opening and closing buffer according to claim 1, characterized in that: The hinge housing (1) is provided with an elastic component (2); The first end of the elastic component (2) acts inside the hinge housing (1) and forms the point of action A, and the second end of the elastic component (2) acts on the outer rocker arm assembly (3) and forms the point of action B; The pivot point of the outer rocker arm assembly (3) on the hinge housing (1) is C; When the outer rocker arm assembly (3) rotates to the point of action A, the point of action B and the pivot point C during the hinge opening and closing process, a critical point is formed; when the outer rocker arm assembly (3) rotates to the point of passing the critical point during the hinge opening and closing process and acts on the buffer (4), the buffer deceleration of the hinge opening and closing process is realized.
4. The hinge with opening and closing buffer according to claim 3, characterized in that: The outer rocker arm assembly (3) is provided with an extension arm (301) that cooperates with the second end of the elastic component (2). The second end of the elastic component (2) is provided with a recess (201), and the extension arm (301) is positioned on the recess (201).
5. The hinge with opening and closing buffer according to claim 4, characterized in that: The recess (201) has a concave arc surface. When the outer rocker arm assembly (301) rotates, one end of the extended arm (301) and the concave arc surface of the recess (201) form an arc-shaped point contact, line contact or surface contact.
6. The hinge with opening and closing buffer according to claim 3, characterized in that: The hinge housing (1) is provided with a connector (7) that is rotatably connected to the outer rocker arm assembly (3). The connector (7) is provided with an installation slot (701), and the elastic component (2) is installed in the installation slot (701).
7. The hinge with opening and closing buffer according to claim 1, characterized in that: The hinge housing (1) is provided with an adjustment fixing seat (6), and the adjustment fixing seat (6) is provided with an assembly groove (601). The assembly groove (601) extends radially along the length of the hinge housing (1), and the buffer (4) is installed in the assembly groove (601).
8. The hinge with opening and closing buffer according to claim 7, characterized in that: The side of the adjusting fixed seat (6) is provided with an opening for connecting the assembly groove (601), and the outer rocker arm assembly (3) acts on the buffer (4) along the opening on the side of the adjusting fixed seat (6) during rotation.
9. The hinge with opening and closing buffer according to claim 8, characterized in that: The adjusting fixing seat (6) and the connecting member (7) are positioned together. The adjusting fixing seat (6) is provided with a first adjusting member (8) for adjusting the relative front and rear position between the hinge cup (5) and the hinge housing (1), and a second adjusting member (9) for adjusting the relative left and right position between the hinge cup (5) and the hinge housing (1).
10. The hinge with opening and closing buffer according to claim 9, characterized in that: The adjusting fixed seat (6) is provided with a positioning protrusion (602), and the connecting piece (7) is provided with a positioning groove (702). The positioning protrusion (602) is embedded in the positioning groove (702) so that the adjusting fixed seat (6) and the connecting piece (7) are positioned together. The hinge housing (1) is provided with a guide groove (101) corresponding to the positioning protrusion (602) to constrain the adjusting fixed seat (6) to move back and forth along the hinge housing (1). When the first adjusting piece (8) rotates, the adjusting fixed seat (6) drives the hinge cup (5) to move back and forth through the connecting piece (7) and the outer rocker arm assembly (3). The adjusting fixed seat (6) is provided with a first inclined guide block (603), and the connecting piece (7) is provided with an inclined groove (703). The first inclined guide block (603) is embedded in the inclined groove (703). The second adjusting piece (9) is threadedly connected to the first inclined guide block (603). When the second adjusting piece (9) rotates, the first inclined guide block (603) moves back and forth on the adjusting fixed seat (6) and drives the connecting piece (7), the outer rocker arm assembly (3) and the hinge cup (5) to move left and right through the inclined groove (703).