Damping hinge

Abstract

A damping hinge comprises a fixed seat assembly, a movable seat assembly, a first connecting rod, a second connecting rod, a connecting rod assembly and a damping device, the first connecting rod is hinged to the second connecting rod and the movable seat assembly, the second connecting rod is hinged to the fixed seat assembly and the connecting rod assembly, and the connecting rod assembly is hinged to the fixed seat assembly and the movable seat assembly. The damping device is arranged on the second connecting rod, one end of the damping device acts on the second connecting rod, more than two acting positions are arranged at the other end of the damping device, the adjusting acting part acts on the acting positions in the hinge closing process, and the adjusting acting part is movably arranged on the first connecting rod in an adjusting mode. The acting position of the adjusting acting piece in the hinge closing process is changed, and then the stroke of the compression damping device in the hinge closing process is adjusted. According to the hinge, the closing speed of the hinge can be increased by reducing the stroke of the compression damping device, and then the hinge is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, and particularly relates to a damping hinge. Background Art

[0002] Chinese Patent Document No. CN116876939A discloses a hinge with a buffering function on October 13, 2023, which includes a fixed seat assembly, a movable seat assembly, a first connecting rod, a second connecting rod and a connecting rod assembly. The first connecting rod is respectively hinged to the fixed seat assembly and the second connecting rod, the second connecting rod is respectively hinged to the movable seat assembly and the connecting rod assembly, the connecting rod assembly is hinged to the movable seat assembly, and further includes a damping device. The damping device is arranged in the inner cavity of the second connecting rod, and one end of the damping device acts on the second connecting rod; when the hinge is closed, the first connecting rod and the second connecting rod make a mutually closing movement, and when the hinge is closed to a corresponding angle, the other end of the damping device acts on the first connecting rod, so that the damping device is linearly positioned and movable up, down, left and right in the inner cavity of the second connecting rod, realizing the damping closing of the hinge. The compression stroke of the damping device of this hinge is fixed and cannot be adjusted, so the closing speed of the hinge cannot be adjusted. Moreover, due to the damping effect of the damping device, there may be a problem of slow closing speed when the hinge is actually used, making the use of the hinge inconvenient and unable to meet the user's usage requirements.

[0003] Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a damping hinge with simple structure, convenient adjustment, convenient use, good user experience and strong practicability, so as to overcome the deficiencies of the prior art.

[0005] A damping hinge designed according to this purpose includes a fixed seat assembly, a movable seat assembly, a first connecting rod, a second connecting rod, a connecting rod assembly and a damping device. The first connecting rod is respectively hinged to the second connecting rod and the movable seat assembly, the second connecting rod is respectively hinged to the fixed seat assembly and the connecting rod assembly, the connecting rod assembly is respectively hinged to the fixed seat assembly and the movable seat assembly, and the damping device is arranged on the second connecting rod and one end of the damping device acts on the second connecting rod. It is characterized in that: it further includes an adjusting acting member, and there are more than two acting positions arranged at the other end of the damping device. During the closing process of the hinge, the adjusting acting member acts on the acting positions, and the adjusting acting member is movably and adjustably arranged on the first connecting rod to change the acting positions on which the adjusting acting member acts during the closing process of the hinge, thereby adjusting the compression stroke of the damping device during the closing process of the hinge.

[0006] The more than two acting positions are respectively arranged at different heights to form different levels, so that the adjusting acting member can adjust the compression stroke of the damping device during the closing process of the hinge in a stepped manner.

[0007] The adjusting component is provided with an acting part. During the closing process of the hinge, the adjusting component acts on the acting position through the acting part, and the acting part is in sliding contact with the acting position.

[0008] The first connecting rod is provided with a limiting and movable matching part. When the adjusting component makes an active adjustment, it is limited and movable on the first connecting rod through the limiting and movable matching part.

[0009] The limiting and movable matching part is provided with more than two clamping positions, and the clamping positions correspond to the acting positions one by one. The adjusting component is provided with a limiting and movable part. When the adjusting component makes an active adjustment, the limiting and movable part moves to the clamping positions.

[0010] The first connecting rod is provided with a guiding component, and the adjusting component is provided with a guiding part. The adjusting component is guided and movable on the first connecting rod through the cooperation of the guiding part and the guiding component.

[0011] On both sides of the second connecting rod, a first positioning part and a second positioning part are respectively arranged. The damping device is positioned and installed between the first positioning part and the second positioning part. A positioning acting part is arranged between the first positioning part and the second positioning part. One end of the damping device acts on the positioning acting part.

[0012] On both sides of the second connecting rod, limiting and guiding parts are respectively arranged. On both sides of the damping device, guiding and matching parts are respectively arranged. During the opening and closing process of the hinge, the damping device is limited and movable on the second connecting rod through the cooperation of the limiting and guiding parts and the guiding and matching parts.

[0013] The adjusting component is provided with a limiting part, and the other end of the damping device is provided with a limiting acting part. When the damping device moves during the opening process of the hinge, it acts on the limiting part through the limiting acting part.

[0014] The connecting rod assembly includes a third connecting rod and a fourth connecting rod. The third connecting rod is respectively hinged to the second connecting rod, the fourth connecting rod, and the movable seat assembly. The fourth connecting rod is hinged to the fixed seat assembly. The third connecting rod is provided with a limiting installation part for limiting the installation of an elastic device. During the opening and closing process of the hinge, the elastic device elastically acts on the limiting installation part to realize the elastic opening and closing of the hinge.

[0015] In the present utility model, by arranging more than two acting positions at the other end of the damping device, the more than two acting positions are set at different heights to form different levels. The adjusting component is movably adjusted and arranged on the first connecting rod to change the acting position on which the adjusting component acts during the closing process of the hinge, thereby adjusting the stroke of compressing the damping device during the closing process of the hinge, and finally realizing the adjustment of the closing speed of the hinge. If there is a problem of slow closing speed during the actual use of the hinge, the closing speed of the hinge can be increased by reducing the stroke of compressing the damping device, thereby facilitating the use of the hinge; users can also adjust the closing speed of the hinge according to actual needs to reduce the collision and noise when the hinge is closed, improve the user experience, and meet the user's usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 5 is a schematic view of the overall structure of the hinge when it is opened in an embodiment of the present invention.

[0017] Figure 2 FIG. 9 is a side view of the hinge in an embodiment of the present invention.

[0018] Figure 3 FIG. 13 is a schematic view of the overall structure of the hinge when the limiting movable part moves to the left end for latching and the hinge is closed in an embodiment of the present invention.

[0019] Figure 4 FIG. 17 is a cross-sectional view of the hinge when the limiting movable part moves to the left end for latching and the hinge is closed in an embodiment of the present invention.

[0020] Figure 5 FIG. 21 is a schematic view of the overall structure of the hinge when the limiting movable part moves to the right end for latching and the hinge is closed in an embodiment of the present invention.

[0021] Figure 6 FIG. 25 is a cross-sectional view of the hinge when the limiting movable part moves to the right end for latching and the hinge is closed in an embodiment of the present invention.

[0022] Figure 7 FIG. 29 is a cross-sectional view of the hinge in an embodiment of the present invention.

[0023] Figure 8 FIG. 33 is a partial cross-sectional view of the hinge in an embodiment of the present invention.

[0024] Figure 9 FIG. 37 is an exploded schematic view of the hinge in an embodiment of the present invention.

[0025] Figure 10 FIG. 41 is a cross-sectional view of the hinge from another orientation in an embodiment of the present invention.

[0026] Figure 11 FIG. 45 is a schematic view of the assembly structure of the hinge, the furniture wall panel and the furniture door panel in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present invention will be further described below with reference to the drawings and embodiments.

[0028] Refer to Figures 1-11, this damping hinge includes a fixed seat assembly 1, a movable seat assembly 2, a first connecting rod 3, a second connecting rod 4, a connecting rod assembly 5, and a damping device 6. The first connecting rod 3 is respectively hinged to the second connecting rod 4 and the movable seat assembly 2. The second connecting rod 4 is respectively hinged to the fixed seat assembly 1 and the connecting rod assembly 5. The connecting rod assembly 5 is respectively hinged to the fixed seat assembly 1 and the movable seat assembly 2. The damping device 6 is arranged on the second connecting rod 4, and one end of the damping device 6 acts on the second connecting rod 4. It further includes an adjusting acting member 7. The other end of the damping device 6 is provided with more than two acting positions 8. During the closing process of the hinge, the adjusting acting member 7 acts on the acting position 8 to compress the damping device 6. The adjusting acting member 7 is movably adjusted and arranged on the first connecting rod 3 to change the acting position 8 on which the adjusting acting member 7 acts during the closing process of the hinge, thereby adjusting the stroke of compressing the damping device 6 during the closing process of the hinge, and finally realizing the adjustment of the closing speed of the hinge.

[0029] More than two acting positions 8 are respectively arranged at different heights to form different levels, so that the adjusting acting member 7 can adjust the stroke of compressing the damping device 6 during the closing process of the hinge in a stepwise manner. The number of acting positions 8 arranged is not limited and can be selected according to actual needs. In this embodiment, two acting positions 8 are arranged. The acting position 8 at the left end of the damping device 6 is higher, and the acting position 8 at the right end is lower. As Figures 3-4 shown, when the adjusting acting member 7 acts on the acting position 8 at the left end, the stroke of compressing the damping device 6 during the closing process of the hinge is larger, and the closing speed of the hinge is slower. As Figures 5-6 shown, when the adjusting acting member 7 acts on the acting position 8 at the right end, the stroke of compressing the damping device 6 during the closing process of the hinge is smaller, and the closing speed of the hinge is faster. When the stroke of compressing the damping device 6 is smaller, with the same closing force acting on the door body, the closing speed of the hinge is faster, and the closing time of the door body is shorter (equivalent to a faster closing speed of the door body). When the stroke of compressing the damping device 6 is larger, with the same closing force acting on the door body, the closing speed of the hinge is slower, and the closing time of the door body is longer (equivalent to a slower closing speed of the door body).

[0030] An acting part 9 is arranged on the adjusting acting member 7. During the closing process of the hinge, the adjusting acting member 7 acts on the acting position 8 through the acting part 9, and the acting part 9 is in sliding contact with the acting position 8. The acting part 9 is a convex platform, and the acting position 8 is an acting plane. When the convex platform acts on the acting plane, the convex platform slides on the acting plane.

[0031] A limiting and movable matching part 10 is arranged on the first connecting rod 3. When the adjusting acting member 7 is movably adjusted, it is limited and movable on the first connecting rod 3 through the limiting and movable matching part 10. The limiting and movable matching part 10 is a limiting groove, and the adjusting acting member 7 is limited and movable on the limiting groove.

[0032] The limiting and movable matching part 10 is provided with more than two clamping positions 11, and the clamping positions 11 correspond to the acting positions 8 one by one. The adjusting acting part 7 is provided with a limiting and movable part 12. When the adjusting acting part 7 is adjusted, the limiting and movable part 12 moves to the clamping position 11; the limiting and movable part 12 is a movable block, and the movable block is limited and movable on the limiting groove; in this embodiment, two clamping positions 11 are provided. The limiting and movable part 12 is provided with a first protrusion 26. The limiting and movable part 12 is clamped on the clamping position 11 through the first protrusion 26. After the adjusting acting part 7 is adjusted, it is clamped on the clamping position 11, which can prevent the adjusting acting part 7 from loosening and affecting the acting damping device 6 of the adjusting acting part 7; a second protrusion 27 is arranged between the two clamping positions 11. A clamping position 11 is formed between the second protrusion 27 and the side of the limiting and movable matching part 10. When the adjusting acting part 7 is adjusted, it is necessary to slightly forcefully dial the adjusting acting part 7 by hand so that the first protrusion 26 crosses the second protrusion 27, and then the limiting and movable part 12 moves from one clamping position 11 to another clamping position 11 to change the acting position 8 of the adjusting acting part 7 during the hinge closing process.

[0033] The first connecting rod 3 is provided with a guiding part 19, and the adjusting acting part 7 is provided with a guiding portion 20. The adjusting acting part 7 is guided and movable on the first connecting rod 3 through the cooperation of the guiding portion 20 and the guiding part 19; the guiding part 19 is a hinge shaft, the guiding portion 20 is a guiding hole, the hinge shaft passes through the guiding hole, and when the adjusting acting part 7 is adjusted, it linearly moves on the hinge shaft through the guiding hole. During the hinge opening and closing process, the adjusting acting part 7 rotates around the hinge shaft, and the first connecting rod 3 and the second connecting rod 4 are hinged through the guiding part 19.

[0034] The two sides of the second connecting rod 4 are respectively provided with a first positioning part 25 and a second positioning part 13. The damping device 6 is positioned and installed between the first positioning part 25 and the second positioning part 13. A positioning acting part 14 is arranged between the first positioning part 25 and the second positioning part 13. One end of the damping device 6 acts on the positioning acting part 14. The positioning acting part 14 is a positioning block, which can position one end of the damping device 6.

[0035] The two sides of the second connecting rod 4 are respectively provided with limiting guiding parts 15, and the two sides of the damping device 6 are respectively provided with guiding and matching parts 16. During the hinge opening and closing process, the damping device 6 is limited and movable on the second connecting rod 4 through the cooperation of the limiting guiding parts 15 and the guiding and matching parts 16; the limiting guiding parts 15 are guiding blocks, and the guiding and matching parts 16 are guiding grooves.

[0036] The adjusting acting part 7 is provided with a limiting part 17, and the other end of the damping device 6 is provided with a limiting acting part 18. When the damping device 6 moves during the hinge opening process, it acts on the limiting part 17 through the limiting acting part 18. After the hinge is opened, the damping device 6 is positioned between the positioning acting part 14 and the limiting part 17. After the hinge is closed, the damping device 6 is positioned between the positioning acting part 14 and the acting part 9.

[0037] The damping device 6 includes a damper 28 and a positioning sleeve 29. The damper 28 is positioned and inserted into the positioning sleeve 29. The damper 28 is inserted into the positioning sleeve 29 from one end of the positioning sleeve 29. The acting position 8 and the limiting acting part 18 are arranged at the other end of the positioning sleeve 29. The damper 28 includes a cylinder block 30, a spring 31 and a piston rod 32. The spring 31 is arranged inside the cylinder block 30. The piston rod 32 is arranged at one end of the damper 28. One end of the piston rod 32 acts on the positioning acting part 14. One end of the spring 31 elastically acts on the other end of the piston rod 32, and the other end elastically acts on the cylinder block 30. During the opening and closing process of the hinge, the cylinder block 30 and the positioning sleeve 29 move on the second connecting rod 4, and the piston rod 32 does not move. It should be noted that when the hinge starts to close, the adjusting acting part 7 does not act on the acting position 8. At this time, the damping device 6 will not be compressed. When the hinge is closed to a corresponding angle, the adjusting acting part 7 acts on the acting position 8, and the cylinder block 30 and the positioning sleeve 29 move in the direction of the positioning acting part 14, and the damping device 6 is compressed, and the spring 31 is compressed. When the hinge is opened to a corresponding angle, the adjusting acting part 7 disengages from the acting position 8. Under the action of the spring 31, the cylinder block 30 and the positioning sleeve 29 move in the direction opposite to the positioning acting part 14 to perform a reset movement, and the damping device 6 expands.

[0038] The connecting rod assembly 5 includes a third connecting rod 21 and a fourth connecting rod 22. The third connecting rod 21 is respectively hinged to the second connecting rod 4, the fourth connecting rod 22 and the movable seat assembly 2. The fourth connecting rod 22 is hinged to the fixed seat assembly 1. A limiting installation part 24 for limiting and installing the elastic device 23 is arranged on the third connecting rod 21. The elastic device 23 is a spring, and the limiting installation part 24 is an installation sleeve. During the opening and closing process of the hinge, the elastic device 23 elastically acts on the limiting installation part 24 to realize the elastic opening and closing of the hinge. The above structure is the prior art and will not be analyzed and described here.

[0039] The fixed seat assembly 1 includes a bottom plate 33 and a connecting arm 34. The connecting arm 34 is installed on the bottom plate 33. The connecting arm 34 is respectively hinged to the second connecting rod 4 and the fourth connecting rod 22. The bottom plate 33 is connected to the furniture wall panel 35. The movable seat assembly 2 is a movable seat, and the movable seat is connected to the furniture door panel 36.

[0040] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A damping hinge, comprising a fixed seat assembly (1), a movable seat assembly (2), a first connecting rod (3), a second connecting rod (4), a connecting rod assembly (5) and a damping device (6), wherein the first connecting rod (3) is hinged to the second connecting rod (4) and the movable seat assembly (2), respectively, the second connecting rod (4) is hinged to the fixed seat assembly (1) and the connecting rod assembly (5), respectively, the connecting rod assembly (5) is hinged to the fixed seat assembly (1) and the movable seat assembly (2), the damping device (6) is arranged on the second connecting rod (4), and one end of the damping device (6) acts on the second connecting rod (4), characterized in that: It also includes an adjusting action member (7), and the other end of the damping device (6) is provided with two or more action positions (8). During the hinge closing process, the adjusting action member (7) acts on the action position (8), and the adjusting action member (7) is movably adjusted and arranged on the first connecting rod (3) to change the action position (8) on which the adjusting action member (7) acts during the hinge closing process, thereby adjusting the stroke of the compression damping device (6) during the hinge closing process.

2. The damping hinge according to claim 1, characterized in that: The two or more action positions (8) are respectively arranged at different heights to form different levels, so that the adjustment action member (7) can adjust the stroke of the compression damping device (6) in the hinge closing process in a step-by-step manner.

3. The damping hinge according to claim 1, characterized in that: An acting portion (9) is provided on the adjusting acting member (7), and during the closing process of the hinge, the adjusting acting member (7) acts on the acting position (8) through the acting portion (9), and the acting portion (9) is in sliding contact with the acting position (8).

4. The damping hinge according to claim 2, characterized in that: A limited position movable fitting portion (10) is provided on the first connecting rod (3), and the regulating member (7) is movable and movable on the first connecting rod (3) through the limited position movable fitting portion (10) when the regulating member (7) is movable and adjusted.

5. The damping hinge according to claim 4, characterized in that: The position-limiting movable matching portion (10) is provided with more than two latching positions (11), the latching positions (11) corresponding to the action positions (8) one by one, and the position-limiting movable portion (12) is provided on the adjustment action member (7), and the position-limiting movable portion (12) moves to the latching positions (11) when the adjustment action member (7) is moved and adjusted.

6. The damping hinge according to claim 1, characterized in that: A guide member (19) is provided on the first connecting rod (3), a guide portion (20) is provided on the adjusting member (7), and the adjusting member (7) moves on the first connecting rod (3) through the cooperation and guidance of the guide portion (20) and the guide member (19).

7. The damping hinge according to claim 1, characterized in that: A first positioning portion (25) and a second positioning portion (13) are respectively provided on both sides of the second connecting rod (4); the damping device (6) is positioned and installed between the first positioning portion (25) and the second positioning portion (13); a positioning action portion (14) is provided between the first positioning portion (25) and the second positioning portion (13); and one end of the damping device (6) acts on the positioning action portion (14).

8. The damping hinge according to claim 1, characterized in that: Limiting guide portions (15) are respectively arranged on both sides of the second connecting rod (4), and guiding matching portions (16) are respectively arranged on both sides of the damping device (6). During the opening and closing process of the hinge, the damping device (6) moves on the second connecting rod (4) through the matching limiting movement of the limiting guide portions (15) and the guiding matching portions (16).

9. The damping hinge according to claim 1, characterized in that: A limiting portion (17) is provided on the regulating member (7), and a limiting portion (18) is provided on the other end of the damping device (6). When the damping device (6) moves during the hinge opening process, the limiting portion (18) acts on the limiting portion (17).

10. The damping hinge according to claim 1, characterized in that: The connecting rod assembly (5) comprises a third connecting rod (21) and a fourth connecting rod (22); the third connecting rod (21) is hinged to the second connecting rod (4), the fourth connecting rod (22) and the movable seat assembly (2), respectively; the fourth connecting rod (22) is hinged to the fixed seat assembly (1); a limiting mounting portion (24) for limiting the mounting of an elastic device (23) is provided on the third connecting rod (21); during the opening and closing process of the hinge, the elastic device (23) elastically acts on the limiting mounting portion (24) to realize elastic opening and closing of the hinge.

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