Connecting rod structure of large-angle buffer hinge and buffer hinge
By setting a bending section in the middle of the connecting rod structure and setting an elastic hinge point on the rear side of the hinge arm, the problem of limited rotation range of existing buffer hinges is solved, achieving a larger opening and closing angle and simplifying the production process.
Patent Information
- Application Number
- CN202423220321.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing linkage structure of the buffer hinge has a limited range of rotation due to the bending part being located near the hinge point, which prevents it from achieving a larger opening and closing angle.
By placing the bend in the middle of the connecting rod structure, the distance between the bend and the two connecting ends is increased, and the hinge point of the elastic element is placed on the rear side to avoid restricting the bend and achieve a larger range of rotation.
This design enables the linkage structure of the buffer hinge to rotate within a wider angle range, enhancing its strength and simplifying the manufacturing process.
Smart Images
Figure CN223563254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hardware fitting field especially relates to a connecting rod structure of big angle buffer hinge and buffer hinge. BACKGROUND
[0002] The existing buffer hinge realizes the transmission connection between the hinge cup and hinge arm through the connecting rod assembly, the connecting rod assembly includes the connecting rod structure connecting the hinge cup and elastic piece, the connecting rod structure is usually provided with the bending part to increase its rotation angle range, but the elastic piece for making the buffer hinge close needs to be arranged on the hinge joint point of the connecting rod assembly and hinge arm under the influence that the buffer device is arranged in the hinge arm, then under the limitation of the thickness and volume of the elastic piece, the bending part of the connecting rod structure needs to be arranged at the two ends close to the hinge joint, the distance between the bending part and hinge joint is short due to this arrangement mode, the rotatable range of the connecting rod structure is limited by the distance, and the larger opening and closing angle cannot be realized.
[0003] According to the above, the existing connecting rod structure needs to be further improved. INVENTION CONTENTS
[0004] The first invention of the utility model aims at overcoming the defects of the existing connecting rod structure, providing a connecting rod structure of big angle buffer hinge, arranging the bending part at the middle part of the connecting rod structure, increasing the distance between the bending part and the two connecting ends of the connecting rod structure, thereby increasing the rotatable range of the connecting rod structure and realizing the larger opening and closing angle.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a connecting rod structure of big angle buffer hinge, including first connecting end, second connecting end and connecting arm, the first connecting end and second connecting end are arranged at the two ends of the connecting arm respectively, the connecting arm is bent to one side to form at least one bending part, the bending part is formed close to the middle part of the connecting arm.
[0006] The utility model arranges the bending part close to the middle part of the connecting arm, increases the distance between the bending part and the two connecting ends of the connecting rod structure, thereby increasing the rotatable range of the connecting rod structure. Compared with the prior art, the connecting rod structure of big angle buffer hinge of the utility model realizes the larger opening and closing angle.
[0007] Preferably, the angle of the bending part is 125 to 135 degrees.
[0008] Preferably, the bending part further includes a second bending part, the second bending part is formed close to one side of the first connecting end, the angle of the second bending part is 145 to 155 degrees; the second bending part is used for enhancing the stress intensity of the first connecting end, avoiding that the part is deformed due to excessive stress, and simultaneously increasing the rotation angle range of the first connecting end.
[0009] Preferably, the second connecting end is provided with an extension part for extending the second connecting end.
[0010] Preferably, the first connecting end and the second connecting end are crimped towards the bending side to form a first connecting position and a second connecting position with the connecting arm respectively; the first connecting position is used for being hinged with the hinge cup through the connecting shaft, and the second connecting position is used for being hinged with the hinge arm through the connecting shaft.
[0011] The existing connecting rod structure only sets the first connecting end as crimped, and due to the different shapes of the first connecting end and the second connecting end, two different molds need to be set during part die punching, and the production manufacturing process is relatively complex, while the connecting rod structure of the utility model sets the first connecting end and the second connecting end as the same shape, and only one mold needs to be used during part die punching, and the production manufacturing process and flow are relatively simple.
[0012] Another application purpose of the utility model is to provide a buffer hinge, which comprises a hinge cup, a buffer device, a hinge arm and the connecting rod assembly in the above scheme, the hinge arm is in transmission connection with the hinge cup through the connecting rod assembly; the buffer device is arranged on the hinge cup, the buffer device outwardly extends an abutting part, when the hinge cup is folded to the hinge arm, the abutting part abuts against the upper end surface of the hinge arm and activates the buffer device; the connecting rod assembly comprises a connecting rod structure, a second connecting rod structure and an elastic piece, the hinge arm is provided with a first hinge joint, a second hinge joint and a third hinge joint, the third hinge joint is located at the rear side, one end of the second connecting rod structure is hinged with the first hinge joint, one end of the connecting rod structure is hinged with the second hinge joint, and the elastic piece is arranged on the third hinge joint through a connecting shaft, and one connecting end of the elastic piece abuts against the connecting rod structure.
[0013] Compared with the prior art, the buffer hinge of the utility model sets the third hinge joint of the elastic piece and the hinge arm at the rear side, so that the position of the elastic piece is also relatively moved backward, so that the setting of the elastic piece on the bending part of the connecting rod structure is not limited, the bending part can be arranged at the middle part of the connecting rod structure, the distance between the bending part and the second connecting end is far, and the connecting rod structure can rotate in a larger angle range.
[0014] Preferably, the first hinge joint, the second hinge joint and the third hinge joint are in triangular distribution, and the second hinge joint is located between the first hinge joint and the third hinge joint.
[0015] Preferably, the distance between the first hinge joint and the upper end surface of the hinge arm is smaller than the distance between the third hinge joint and the upper end surface of the hinge arm, so that the rotation range of the second connecting rod structure can be increased.
[0016] Preferably, the second connecting rod structure comprises a third connecting end and a fourth connecting end, the third connecting end is hinged with the hinge cup through a positioning pin, the fourth connecting end is hinged with the first hinge point, and a third bending part is arranged between the third connecting end and the fourth connecting end.
[0017] Preferably, the positioning pin is provided with at least two, and a clearance is formed between the positioning pins, the clearance is located on the rotation track of the connecting rod structure; the clearance can reduce the rotation limitation of the connecting rod structure, so that the rotation range of the connecting rod structure is increased. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a structural schematic diagram of a connecting rod structure.
[0019] Figure 2 is a schematic diagram of a buffer hinge in an open state Figure 1 .
[0020] Figure 3 is a schematic diagram of a buffer hinge in an open state Figure 2 .
[0021] Figure 4 is a structural exploded view of a buffer hinge.
[0022] Figure 5 is a structural schematic diagram of a connecting rod assembly.
[0023] Figure 6 is a structural schematic diagram of a connecting rod assembly and a positioning pin.
[0024] Figure 7 is a structural schematic diagram of a second connecting rod structure.
[0025] Figure 8 is a partial structural schematic diagram of a buffer hinge.
[0026] Figure 9 is a sectional view of a buffer hinge in an open state.
[0027] Figure 10 is a schematic diagram of a buffer hinge in a state that a buffer device is activated.
[0028] Figure 11 is a sectional view of a buffer hinge in a state that a buffer device is activated.
[0029] Figure 12 is a schematic diagram of a buffer hinge in a closed state.
[0030] Figure 13 is a sectional view of a buffer hinge in a closed state.
[0031] REFERENCE SIGNS:
[0032] The connecting rod structure 1 of the large-angle buffer hinge, the first connecting end 11, the second connecting end 12, the connecting arm 13, the bending part 14, the second bending part 15, the extension part 16, the first connecting position 17, the second connecting position 18, the buffer hinge 2, the hinge cup 3, the buffer device 4, the abutting part 41, the hinge arm 5, the first hinge joint 51, the second hinge joint 52, the third hinge joint 53, the connecting rod assembly 6, the second connecting rod structure 61, the third connecting end 611, the fourth connecting end 612, the third bending part 613, the limiting lug 614, the elastic piece 62, the positioning pin 7, and the clearance 71. DETAILED DESCRIPTION
[0033] In the description of the utility model, it is understood that the orientation or position relationship indicated by "upper", "lower", "left", "right", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0034] Embodiment one
[0035] Reference Figure 1 .
[0036] The connecting rod structure 1 of the large-angle buffer hinge, the first connecting end 11, the second connecting end 12, the connecting arm 13, the bending part 14, the second bending part 15, the extension part 16, the first connecting position 17, the second connecting position 18, the buffer hinge 2, the hinge cup 3, the buffer device 4, the abutting part 41, the hinge arm 5, the first hinge joint 51, the second hinge joint 52, the third hinge joint 53, the connecting rod assembly 6, the second connecting rod structure 61, the third connecting end 611, the fourth connecting end 612, the third bending part 613, the limiting lug 614, the elastic piece 62, the positioning pin 7, and the clearance 71.
[0037] The angle of the bending part 14 is 125° to 135°; the bending part 14 further comprises a second bending part 15, the second bending part 15 is formed on the side close to the first connecting end 11, and the angle of the second bending part 15 is 145° to 155°. The bending part 14 and the second bending part 15 of the scheme are used for enhancing the stress intensity of the connecting rod structure 1, avoiding deformation of the connecting rod structure 1 caused by excessive stress, and increasing the rotation angle range of the connecting rod structure 1.
[0038] In order to prevent the elastic piece 62 from sliding off the second connecting end 12, the second connecting end 12 is provided with an extension part 16, and the extension part 16 is used for extending the second connecting end 12.
[0039] The first connecting end 11 and the second connecting end 12 are curled to the bending side and form the first connecting position 17 and the second connecting position 18 with the connecting arm 13, respectively. The first connecting position 17 and the second connecting position 18 of the scheme are used for inserting a connecting shaft to make the connecting rod structure 1 hinged with the hinge cup 3 and the hinge arm 5, respectively.
[0040] The embodiment increases the distance between the bending part 14 and the two connecting ends of the connecting rod structure 1 by arranging the bending part 14 at the middle part close to the connecting arm 13, so that the rotating range of the connecting rod structure 1 is larger. Compared with the prior art, the connecting rod structure 1 of the large-angle buffering hinge of the utility model can realize a larger opening and closing angle.
[0041] Embodiment two
[0042] Referring to Figures 2 to 13 .
[0043] The embodiment discloses a buffering hinge 2, which comprises a hinge cup 3, a buffering device 4, a hinge arm 5 and a connecting rod assembly 6, the hinge arm 5 is in transmission connection with the hinge cup 3 through the connecting rod assembly 6; the buffering device 4 is arranged on the hinge cup 3, the buffering device 4 outwardly extends an abutting part 41, when the hinge cup 3 is folded to the hinge arm 5, the abutting part 41 abuts against the upper end surface of the hinge arm 5 and activates the buffering device 4; the connecting rod assembly 6 comprises a second connecting rod structure 61, an elastic piece 62 and the connecting rod structure 1 of embodiment one, the hinge arm 5 is provided with a first hinge joint 51, a second hinge joint 52 and a third hinge joint 53, the third hinge joint 53 is located at the rear side, one end of the second connecting rod structure 61 is hingedly connected with the first hinge joint 51, one end of the connecting rod structure 1 is hingedly connected with the second hinge joint 52, the elastic piece 62 is arranged on the third hinge joint 53 through a connecting shaft, and one connecting end of the elastic piece 62 abuts against the connecting rod structure 1.
[0044] The buffering hinge 2 of the embodiment arranges the third hinge joint 53, at which the elastic piece 62 is hingedly connected with the hinge arm 5, at the rear side, so that the position of the elastic piece 62 is also relatively moved backward, thereby the arrangement of the elastic piece 62 does not limit the arrangement of the bending part 14 on the connecting rod structure 1, the bending part 14 can be arranged at the middle part of the connecting rod structure 1, the distance between the bending part 14 and the second connecting end 12 is farther, and the connecting rod structure 1 can rotate in a larger angle range. Compared with the prior art, the buffering hinge 2 of the utility model can realize a larger opening and closing angle due to the application of the above scheme.
[0045] The first hinge joint 51, the second hinge joint 52 and the third hinge joint 53 are in triangular distribution, and the second hinge joint 52 is located between the first hinge joint 51 and the third hinge joint 53.
[0046] The distance between the first hinge joint 51 and the upper end surface of the hinge arm 5 is smaller than the distance between the third hinge joint 53 and the upper end surface of the hinge arm 5. The first hinge joint 51 of the scheme can be arranged to be higher than the third hinge joint 53 because the first hinge joint 51 does not need to be provided with the elastic piece 62, and then the second connecting rod structure 61 can rotate in a larger angle.
[0047] The second connecting rod structure 61 comprises a third connecting end 611 and a fourth connecting end 612, the third connecting end 611 is hinged with the hinge cup 3 through a positioning pin 7, the fourth connecting end 612 is hinged with the first hinge point 51, and a third bending part 613 is arranged between the third connecting end 611 and the fourth connecting end 612.
[0048] In order to prevent the positioning pin 7 from being displaced, a limiting protrusion 614 is arranged on the third bending part 613, and the limiting protrusion 614 is used for limiting the positioning pin 7.
[0049] The positioning pin 7 is at least two, and an avoidance opening 71 is formed between the positioning pins 7, and the avoidance opening 71 is located on the rotating track of the connecting rod structure. The avoidance opening 71 of the scheme reserves sufficient rotating space for the connecting rod structure 1, so that the rotating range of the connecting rod structure 1 is larger.
[0050] According to the disclosure and teaching of the above description, the person skilled in the art of the utility model can also change and modify the above-mentioned embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.
Claims
1. A linkage structure of a large-angle cushion hinge, characterized by, The connecting arm (13) is bent to one side to form a bending part (14) near the middle of the connecting arm (13).
2. The link structure according to claim 1, characterized by The angle of the bending part (14) is 125° to 135°.
3. The link structure according to claim 1, characterized by The bending part (14) further comprises a second bending part (15) formed near the side of the first connecting end (11), and the angle of the second bending part (15) is 145° to 155°.
4. The link structure according to claim 1, characterized by The second connecting end (12) is provided with an extension part (16) for extending the second connecting end (12).
5. The linkage structure of claim 1, wherein The first connecting end (11) and the second connecting end (12) are curled to the bending side to form a first connecting position (17) and a second connecting position (18) with the connecting arm (13), respectively.
6. A buffer hinge, comprising a hinge cup (3); a hinge arm (5) drivingly connected with the hinge cup (3) through a linkage assembly (6); a buffer device (4) provided on the hinge cup (3), the buffer device (4) extending outwardly with an abutting part (41), when the hinge cup (3) is folded to the hinge arm (5), the abutting part (41) abuts against the upper end surface of the hinge arm (5) and activates the buffer device (4); The connecting rod assembly (6) comprises a connecting rod structure, a second connecting rod structure (61) and a resilient member (62), characterized in that The first hinge joint (51), the second hinge joint (52) and the third hinge joint (53) are in a triangular distribution, and the second hinge joint (52) is located between the first hinge joint (51) and the third hinge joint (53).
7. The cushion hinge according to claim 6, characterized in that The distance between the first hinge joint (51) and the upper end surface of the hinge arm (5) is less than the distance between the third hinge joint (53) and the upper end surface of the hinge arm (5).
8. The cushion hinge according to claim 7, characterized in that The second linkage structure (61) comprises a third connecting end (611) and a fourth connecting end (612), the third connecting end (611) is hingedly connected with the hinge cup (3) through a positioning pin (7), and the fourth connecting end (612) is hingedly connected with the first hinge joint (51), and a third bending part (613) is arranged between the third connecting end (611) and the fourth connecting end (612).
9. The bumping hinge of claim 6, wherein, The positioning pin (7) is provided with at least two, and an avoidance opening (71) is formed between the positioning pins (7), and the avoidance opening (71) is located on the rotation track of the linkage structure.
10. The cushion hinge of claim 9, wherein,