Three-point sectional type hinge cup and buffer hinge
By adopting a three-point segmented hinge cup structure, using U-shaped fixing pins of varying lengths and a triangularly distributed positioning hole design, the stability of the hinge is enhanced, solving the problem of weak connection in existing hinges, and achieving a larger opening angle and a more stable door connection.
Patent Information
- Application Number
- CN202423220457.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing hinges have poor stability due to the inability of the hinge fixing pins. The existing hinge fixing pins are prone to falling off and are not secure. Furthermore, the connection of the existing hinge fixing pins in the hinge system is not firm, resulting in a limited range of door rotation.
It adopts a three-point segmented hinge cup structure, using at least two U-shaped fixing pins of different lengths on both sides to connect the body and the connecting rod structure. The stability of the fixing pins is enhanced by triangularly distributed positioning holes and flange design, while a clearance is formed between the fixing pins to reduce the resistance to the rotation of the connecting rod structure.
It achieves a larger opening angle and a more stable door connection, solving the problem of easy detachment of the fixing pin of the chain in the existing technology, and realizing a larger opening angle and a larger opening range.
Smart Images
Figure CN223647607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware accessories, and in particular to a three-point segmented hinge cup and a buffer hinge. Background Technology
[0002] Buffer hinges are commonly used accessories in door design, connecting side panels and the door body, and cushioning the door when closed to prevent impact. A buffer hinge consists of a hinge cup and a hinge arm, as well as a connecting rod structure that transmits power between the hinge cup and the hinge arm. The hinge cup and the connecting rod structure are rotatably connected by a fixing pin. Currently, the fixing pins used in hinges are all U-shaped pins, and only one is used. The pin segments on both sides of the fixing pin are inserted from the same side of the hinge cup and pass parallel to both sides of the hinge cup. The fixing pin is prone to falling off and is not secure. Furthermore, the pin segment located inside the hinge cup restricts the rotation angle of the connecting rod structure on the hinge cup, thus limiting the rotation range of the door.
[0003] Based on the above, the existing hinge cup structure needs further improvement. Utility Model Content
[0004] The first objective of this invention is to overcome the shortcomings of existing hinge cup structures and provide a three-point segmented hinge cup. It uses at least two U-shaped fixing pins of different lengths on both sides to connect the body and the connecting rod structure, so that the fixing pins are firmly connected and do not come off. At the same time, the fixing pins form a clearance opening, which reduces the obstruction to the rotation range of the connecting rod structure, thereby increasing the opening angle range and achieving a larger opening angle.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a three-point segmented hinge cup, comprising a body and at least two fixing pins, wherein the fixing pins include a first pin segment and a second pin segment, the second pin segment passing through both sides of the body, and the first pin segment passing through one side of the body, so that a fixing pin is fixed on the body, and when the two fixing pins are fixed, the two first pin segments are arranged opposite to each other and an opening is formed between the first pin segments.
[0006] This invention utilizes at least two U-shaped fixing pins of varying lengths on both sides, ensuring a secure connection and preventing detachment. Simultaneously, the fixing pins create a clearance, reducing obstruction to the rotation range of the connecting rod structure and thus increasing the door opening angle. Compared to existing technologies, this invention's three-point segmented hinge cup is more stable and enables a larger door opening angle.
[0007] Preferably, the side of the body is provided with a first positioning hole, a second positioning hole and a third positioning hole. The first positioning hole is located in front of the second positioning hole and the third positioning hole. The first pin segment is inserted into the first positioning hole, and the second pin segment is selectively inserted into the second positioning hole or the third positioning hole. The first positioning hole is closer to the middle of the hinge cup, so that the first pin segment is set on the first positioning hole, thereby the clearance is also formed closer to the middle of the hinge cup.
[0008] Preferably, the first positioning hole, the second positioning hole, and the third positioning hole are arranged in a triangular pattern to make the fixing pin more stable in fixing the hinge cup; the first positioning hole is provided with a flange to increase the contact area between the first pin segment and the first positioning hole, and to prevent the first pin segment from falling off due to the large force and small contact area.
[0009] Preferably, it further includes a third pin segment, which connects the first pin segment and the second pin segment, wherein the length of the first pin segment is less than the length of the second pin segment.
[0010] Preferably, the third pin segment is inclined outward, so that the angle formed between the third pin segment and the first pin segment is not equal to the angle formed between the third pin segment and the second pin segment. Therefore, the sliding trajectories of the first pin segment and the second pin segment are not parallel, so that the fixing pin is not easy to fall off and the connection is firm.
[0011] Preferably, the body includes a receiving cavity in the middle and a mounting part on one side of the receiving cavity, the mounting part having a mounting hole; the mounting part is used to fix the hinge cup to the door body.
[0012] Another objective of this invention is to provide a buffer hinge, comprising a hinge cup; a buffer device disposed on the hinge cup, the buffer device extending outward with an abutting portion; and a hinge arm, the hinge arm being connected to the hinge cup via a linkage structure. When the hinge cup retracts towards the hinge arm, the abutting portion abuts against the upper end face of the hinge arm and activates the buffer device. The linkage structure includes a first link, a second link, and a torsion spring. The hinge arm has a first hinge point, a second hinge point, and a third hinge point. One end of the first link is hinged to the first hinge point, and the other end is rotatably connected to the hinge cup via a fixing pin. One end of the second link is hinged to the second hinge point, and the other end is rotatably connected to the hinge cup via a fixing pin. The torsion spring is disposed on the third hinge point via a connecting shaft, and one connecting end of the torsion spring abuts against the second link. Compared with the prior art, the buffer hinge of this invention is more stable and can achieve a larger opening angle due to the application of the above solution.
[0013] Preferably, the first hinge point, the second hinge point, and the third hinge point are arranged in a triangular pattern. The second hinge point is located between the first hinge point and the third hinge point, and the third hinge point is located on the rear side. The torsion spring provided on the third hinge point is also relatively moved rearward. In this way, the rotation of the first link at the first hinge point and the rotation of the second link at the second hinge point are not restricted by the torsion spring, and the rotation angle is larger. The distance between the first hinge point and the upper end face of the hinge arm is smaller than the distance between the third hinge point and the upper end face of the hinge arm, which can increase the rotation range of the first link.
[0014] Preferably, the second link is bent away from the first link to form a first bend and a second bend. The first bend is formed near the middle of the second link, and the second bend is formed near the hinge point between the second link and the hinge cup. The bends are used to enhance the strength of the parts, prevent excessive stress from causing deformation of the parts, and increase the rotation angle range of the second link.
[0015] Preferably, the end of the second connecting rod that is hinged to the second hinge point is provided with an extension portion, which is used to restrict the torsion spring connection end and prevent the torsion spring connection end from slipping off the second connecting rod.
[0016] Preferably, the spring force is greater when the buffer hinge is open than when the buffer hinge is closed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the hinge cup structure. Figure 1 .
[0018] Figure 2 This is a schematic diagram of the hinge cup structure. Figure 2 .
[0019] Figure 3 This is a schematic diagram of the hinge cup's main body.
[0020] Figure 4 This is a diagram of the buffer hinge in the open state. Figure 1 .
[0021] Figure 5 This is a diagram of the buffer hinge in the open state. Figure 2 .
[0022] Figure 6 This is an exploded view of the structure of the buffer hinge.
[0023] Figure 7 This is a partial structural diagram of a buffer hinge.
[0024] Figure 8 This is a schematic diagram of the linkage structure.
[0025] Figure 9This is a schematic diagram of the second link.
[0026] Figure 10 This is a cross-sectional view of the buffer hinge in the open state.
[0027] Figure 11 This is a schematic diagram of the buffer hinge being activated in the buffer device.
[0028] Figure 12 This is a cross-sectional view of the buffer hinge when the buffer device is activated.
[0029] Figure 13 This is a schematic diagram of the buffer hinge in the closed state.
[0030] Figure 14 This is a cross-sectional view of the buffer hinge in the closed state.
[0031] Label Explanation:
[0032] Three-point segmented hinge cup 1, body 2, first positioning hole 21, flange 211, second positioning hole 22, third positioning hole 23, receiving cavity 24, mounting part 25, mounting hole 251, fixing pin 3, first pin segment 31, second pin segment 32, clearance opening 33, third pin segment 34, buffer hinge 4, buffer device 5, abutment part 51, hinge arm 6, first hinge point 61, second hinge point 62, third hinge point 63, connecting rod structure 7, first connecting rod 71, second connecting rod 72, first bending part 721, second bending part 722, extension part 723, torsion spring 73. Detailed Implementation
[0033] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "horizontal", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0034] Example 1
[0035] See Figures 1 to 3 .
[0036] This embodiment discloses a three-point segmented hinge cup 1, including a body 2 and at least two fixing pins 3. The fixing pin 3 includes a first pin segment 31 and a second pin segment 32. The second pin segment 32 passes through both sides of the body 2, and the first pin segment 31 passes through one side of the body 2, so that a fixing pin 3 is fixed on the body 2. When the two fixing pins 3 are fixed, the two first pin segments 31 are arranged opposite to each other and an opening 33 is formed between the first pin segments 31.
[0037] The main body 2 has a first positioning hole 21, a second positioning hole 22 and a third positioning hole 23 on its side. The first positioning hole 21 is located in front of the second positioning hole 22 and the third positioning hole 23. The first pin segment 31 is inserted into the first positioning hole 21, and the second pin segment 32 is selectively inserted into the second positioning hole 22 or the third positioning hole 23.
[0038] The first positioning hole 21, the second positioning hole 22, and the third positioning hole 23 are arranged in a triangular pattern, and the first positioning hole 21 is provided with a flange 211. The flange 211 in this design is used to increase the contact area between the first pin segment 31 and the first positioning hole 21, and to prevent the first pin segment 31 from falling off due to high force and small contact area.
[0039] It also includes a third pin segment 34, which connects the first pin segment 31 and the second pin segment 32, wherein the length of the first pin segment 31 is less than the length of the second pin segment 32.
[0040] To securely mount the fixing pin 3 onto the body 2, the third pin segment 34 is inclined outwards. In this design, the angles formed between the third pin segment 34 and the first pin segment 31 and between the third pin segment 34 and the second pin segment 32 are not equal. Therefore, the first pin segment 31 and the second pin segment 32 are not parallel, making the fixing pin 3 less prone to falling off and ensuring a secure installation.
[0041] The main body 2 includes a receiving cavity 24 disposed in the middle and a mounting part 25 disposed on one side of the receiving cavity 24, and the mounting part 25 is provided with a mounting hole 251.
[0042] This invention utilizes at least two U-shaped fixing pins 3 of varying lengths on both sides, ensuring a secure connection and preventing detachment. Simultaneously, a clearance 33 is formed between the fixing pins 3, reducing the impact on the rotation range of the connecting rod structure 7 and thus increasing the door opening angle range. Compared to existing technologies, the three-point segmented hinge cup 1 of this invention is more stable and can achieve a larger door opening angle.
[0043] Example 2
[0044] See Figures 4 to 14 .
[0045] This embodiment discloses a buffer hinge 4, including a buffer device 5, a hinge arm 6, and a hinge cup 1 as described in Embodiment 1. The buffer device 5 is disposed on the hinge cup 1, and the buffer device 5 extends outward with an abutment portion 51. The hinge arm 6 is connected to the hinge cup 1 via a connecting rod structure 7. When the hinge cup 1 retracts towards the hinge arm 6, the abutment portion 51 abuts against the upper end face of the hinge arm 6 and activates the buffer device 5. The connecting rod structure 7 includes a first connecting rod 71, a second connecting rod 72, and a torsion spring 73. The hinge arm 6 is provided with a first hinge point 61, a second hinge point 62, and a third hinge point 63. One end of the first connecting rod 71 is hinged to the first hinge point 61, and the other end is rotatably connected to the hinge cup 1 via a fixing pin 3. One end of the second connecting rod 72 is hinged to the second hinge point 62, and the other end is rotatably connected to the hinge cup 1 via a fixing pin 3. The torsion spring 73 is mounted on the third hinge point 63 via a connecting shaft, and one connecting end of the torsion spring 73 abuts against the second connecting rod 72. The buffer hinge 4 of this design connects the hinge cup 1 and the hinge arm 6 via a connecting rod structure 7, which is in turn connected to the hinge cup 1 via a fixing pin 3, making force transmission simple and direct. Compared with the prior art, the buffer hinge 4 of this utility model is more stable and can achieve a larger opening angle due to the application of the above solution.
[0046] The first hinge point 61, the second hinge point 62, and the third hinge point 63 are arranged in a triangle. The second hinge point 62 is located between the first hinge point 61 and the third hinge point 63, and the third hinge point 63 is located on the rear side. The distance between the first hinge point 61 and the upper end face of the hinge arm 6 is less than the distance between the third hinge point 63 and the upper end face of the hinge arm 6. In this design, the third hinge point 63 is located on the rear side, causing the torsion spring 73 located on the third hinge point 63 to move relatively rearward. This avoids the torsion spring 73 restricting the rotation range of the first connecting rod 71 and the second connecting rod 72, thereby allowing the connecting rod structure 7 to rotate at a larger angle, and consequently, the opening and closing angle of the buffer hinge 4 is also larger.
[0047] The clearance opening 33 is located on the rotation trajectory of the first connecting rod 71 and the second connecting rod 72. In this design, the clearance opening 33 allows the first connecting rod 71 and the second connecting rod 72 to rotate at a greater angle, free from the constraint of the fixing pin 3, thus enabling the door to rotate at a larger angle. Specifically, the door rotation angle range achievable by the buffer hinge 4 is 20°-125°. When the door rotates to within 20° of full closure, the buffer device 5 contacts the upper end face of the hinge arm 6, activating and engaging the buffer device 5.
[0048] The second link 72 is bent away from the first link 71 to form a first bent portion 721 and a second bent portion 722. The first bent portion 721 is formed near the middle of the second link 72, and the second bent portion 722 is formed near the hinge point between the second link 72 and the hinge cup.
[0049] To prevent the connecting end of the torsion spring 73 from slipping off the second link 72, an extension 723 is provided at the end of the second link 72 that is hinged to the second hinge point 62. The extension 723 is used to restrict the connecting end of the torsion spring 73. In this solution, the second link 72 directly connects the hinge cup 1 and the connecting end of the torsion spring 73, so that the closing force generated by the torsion spring 73 is directly transmitted to the hinge cup 1 and then to the door panel. This simplifies the existing four-link transmission structure, makes the force transmission simple and direct, makes the door rotation smoother, and improves the user experience.
[0050] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A three-point segmented hinge cup, characterized in that, The device includes a body (2) and at least two fixing pins (3). Each fixing pin (3) includes a first pin segment (31) and a second pin segment (32). The second pin segment (32) passes through both sides of the body (2), and the first pin segment (31) passes through one side of the body (2) so that a fixing pin (3) is fixed on the body (2). When the two fixing pins (3) are fixed, the two first pin segments (31) are arranged opposite to each other and an opening (33) is formed between the first pin segments (31).
2. A three-point segmented hinge cup according to claim 1, characterized in that, The body (2) is provided with a first positioning hole (21), a second positioning hole (22) and a third positioning hole (23) on its side. The first positioning hole (21) is located in front of the second positioning hole (22) and the third positioning hole (23). The first pin segment (31) is inserted into the first positioning hole (21), and the second pin segment (32) is selectively inserted into either the second positioning hole (22) or the third positioning hole (23).
3. A three-point segmented hinge cup according to claim 2, characterized in that, The first positioning hole (21), the second positioning hole (22) and the third positioning hole (23) are arranged in a triangular pattern, and the first positioning hole (21) is provided with a flange (211).
4. A three-point segmented hinge cup according to claim 1, characterized in that, It also includes a third pin segment (34), which connects the first pin segment (31) and the second pin segment (32), wherein the length of the first pin segment (31) is less than the length of the second pin segment (32).
5. A three-point segmented hinge cup according to claim 4, characterized in that, The third pin section (34) is inclined outward.
6. A three-point segmented hinge cup according to claim 2, characterized in that, The main body (2) includes a accommodating cavity (24) in the middle and a mounting part (25) on one side of the accommodating cavity (24), and the mounting part (25) is provided with a mounting hole (251).
7. Buffer hinge, including Hinge cup, characterized in that, The hinge cup is the hinge cup according to any one of claims 1-6; A buffer device (5) is provided on the hinge cup, and the buffer device (5) extends outward with an abutment part (51); The hinge arm (6) is connected to the hinge cup via a connecting rod structure (7). When the hinge cup retracts towards the hinge arm (6), the abutting part (51) abuts against the upper end face of the hinge arm (6) and activates the buffer device (5). The linkage structure (7) includes a first linkage (71), a second linkage (72), and a torsion spring (73). The hinge arm (6) is provided with a first hinge point (61), a second hinge point (62), and a third hinge point (63). One end of the first linkage (71) is hinged to the first hinge point (61), and the other end is rotatably connected to the hinge cup through a fixing pin (3). One end of the second linkage (72) is hinged to the second hinge point (62), and the other end is rotatably connected to the hinge cup through a fixing pin (3). The torsion spring (73) is set on the third hinge point (63) through a connecting shaft, and one connecting end of the torsion spring (73) abuts against the second linkage (72).
8. The buffer hinge according to claim 7, characterized in that, The first hinge point (61), the second hinge point (62) and the third hinge point (63) are arranged in a triangle. The second hinge point (62) is located between the first hinge point (61) and the third hinge point (63) and the third hinge point (63) is located on the rear side. The distance between the first hinge point (61) and the upper end face of the hinge arm (6) is less than the distance between the third hinge point (63) and the upper end face of the hinge arm (6).
9. The buffer hinge according to claim 7, characterized in that, The second link (72) is bent away from the first link (71) to form a first bend (721) and a second bend (722). The first bend (721) is formed near the middle of the second link (72), and the second bend (722) is formed near the hinge point between the second link (72) and the hinge cup.
10. The buffer hinge according to claim 7, characterized in that, The second connecting rod (72) is provided with an extension (723) at one end that is hinged to the second hinge point (62), and the extension (723) is used to limit the connection end of the torsion spring (73).