Hinge base and door hinge
By using a U-shaped intermediate element to engage with and slide between the fixed and adjustable base plates, the problem of unstable hinge base connection is solved, enabling stable installation and standardized opening of thicker door panels, thus reducing production and installation difficulties.
Patent Information
- Application Number
- CN202422745219.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The existing hinge base, without adjusting the overall specifications, is prone to loosening between the fixed base plate and the adjustable base plate, resulting in unstable connection. This is especially true for thicker door panels. Existing solutions increase the overall specifications of the hinge, leading to non-standard opening sizes, which increases production costs and installation difficulty.
The U-shaped intermediate element connects to the fixed base plate and the adjustable base plate. The snap-fit structure at the front and rear ends ensures tight clamping. Combined with the sliding connection structure and buffer mechanism, the structural stability and connection reliability of the hinge base are optimized.
Without changing the overall specifications of the hinge, the structural stability and connection reliability of the hinge base are improved, solving the problem of stable installation of thick door panels. At the same time, the non-standardization of the opening size is avoided, reducing the difficulty of production and installation.
Smart Images
Figure CN223838880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware accessories technology, specifically to a hinge base and a door hinge. Background Technology
[0002] In the traditional field of furniture design and manufacturing, hinges are not only the bridge connecting door panels to cabinets or frames, but also a key component for achieving a balance between functionality and aesthetics in furniture. Their ingenious structural design typically consists of three main parts: the base, the hinge cup, and the hinge arm mechanism connecting the two. The base is firmly installed on the cabinet or frame, serving as the supporting foundation for the entire hinge system; the hinge cup is tightly connected to the door panel, ensuring smooth opening and closing; and the hinge arm mechanism, like the "spine" of the hinge, transmits force through precise mechanical principles, making the door panel move stably and silently.
[0003] However, for thicker door panels, such as those reaching 25mm, the application of existing hinge structures faces certain limitations. Existing hinge bases consist of a fixed base plate, an adjustable base plate, and an intermediate element. The fixed base plate connects to the door body, the adjustable base plate connects to the hinge arm mechanism, and the intermediate element is located between the two to connect them. For thicker door panels, due to their weight and inertia, even under normal opening and closing conditions, the hinge experiences a greater load. In this situation, the fixed and adjustable base plates are prone to loosening after repeated door opening and closing impacts, resulting in an unstable connection. The existing approach to address this issue is to increase the overall hinge size, such as changing a 35mm cup hinge to a 40mm cup hinge. However, this directly leads to an increase in the hinge cup opening size in the door panel, requiring a φ40mm opening, which is quite unusual compared to other standard opening sizes on the market. This increase in the size of the special opening has caused various problems for furniture manufacturers, installers, and end customers. This increases both production costs and management complexity, as well as installation difficulty.
[0004] In conclusion, how to improve the structural stability of the base without changing the overall specifications of the hinge has become a key issue that urgently needs to be addressed. Summary of the Invention
[0005] The first objective of this invention is to solve the problem that, in existing hinge bases, the fixed base plate and the adjustable base plate of the hinge are prone to loosening and causing unstable connection when the overall specifications are not adjusted, and to provide a hinge base.
[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:
[0007] The hinge base includes a fixed base plate, an adjustable base plate, and an intermediate element. The fixed base plate includes a first mounting part and a second mounting part located on the left and right sides of the first mounting part. The intermediate element and the adjustable base plate are U-shaped. The front and rear ends of the intermediate element are provided with fastening structures. The intermediate element is sleeved on the first mounting part, and its fastening structures are respectively fastened to the front and rear ends of the first mounting part to form a clamping grip on the first mounting part. The adjustable base plate is sleeved on the intermediate element.
[0008] The hinge base of this utility model has a U-shaped intermediate element and an adjustable base plate, which are fitted together so that the adjustable base plate is assembled to the upper middle part of the fixed base plate through the intermediate element. Since the front and rear ends of the intermediate element are equipped with a snap-fit structure, they can be tightly snapped to the front and rear ends of the first mounting part after assembly, thereby firmly clamping the fixed base plate and ensuring the structural stability and connection reliability of the entire hinge base.
[0009] Furthermore, the fastening structure includes a first fastening structure and a second fastening structure. The first fastening structure is fixedly disposed on both sides of the front end of the intermediate element, and the second fastening structure is disposed on the rear end of the intermediate element in a way that allows it to be flipped up and down.
[0010] Furthermore, the first fastening structure includes a first hook, and the bottom of the first mounting part is recessed to form a clearance groove, and a notch with a front opening is provided to cooperate with the first hook, with the first hook fastened to the bottom of the notch. In this solution, the bottom of the first mounting part is recessed, so that the fastening structure can be fastened to the bottom of the first mounting part without interfering with the installation of the base on the cabinet or frame.
[0011] Furthermore, the second fastening structure includes a second fastening member, a second pressing part, a second mounting shaft, and a second elastic member. The second pressing part is located on the upper part of the intermediate element. The second fastening member and the second elastic member are both rotatably mounted on the intermediate element through the second mounting shaft and are located on the rear side of the second pressing part. The lower part of the second fastening member is provided with a second hook. One end of the second elastic member presses against the second pressing part, and the other end presses against the rear side of the second hook to provide forward pressure for the second hook, so that the second hook is fastened forward onto the fixed base plate.
[0012] Furthermore, the rear of the first mounting part is provided with a connecting part, which is U-shaped, and the second hook is fastened to the connecting part.
[0013] Furthermore, the first mounting part is provided with a mounting groove along its length, and a space for accommodating the buffer mechanism is formed between the inner side of the intermediate element and the mounting groove.
[0014] Furthermore, inclined platforms are provided on opposite sides of the connecting part to allow the intermediate element to be interference-fitted with the connecting part, thereby increasing the stability of the connection between the base and the intermediate element.
[0015] Furthermore, the intermediate element has downwardly extending inserts on both sides, and the first mounting portion is adapted to the inserts and has an insertion port.
[0016] Furthermore, a sliding connection structure is provided between the intermediate element and the adjustable base plate, and the adjustable base plate is mounted on the intermediate element and can move back and forth through the sliding connection structure.
[0017] Furthermore, the sliding connection structure is arranged in two sets, one in front and one behind.
[0018] Another objective of this invention is to provide a door hinge, comprising a base, a hinge cup, and a hinge arm mechanism connecting the two, wherein the base is the hinge base of the aforementioned design. Compared with the prior art, the door hinge of this invention, due to the application of the hinge base of the aforementioned design, possesses all the advantages of the aforementioned design. Attached Figure Description
[0019] Figure 1 It is a disassembly of the hinge base. Figure 1 ;
[0020] Figure 2 This is a structural diagram of the hinge base. Figure 1 ;
[0021] Figure 3 It is a disassembly of the hinge base. Figure 2 ;
[0022] Figure 4 This is a structural diagram of the hinge base. Figure 2 ;
[0023] Figure 5 This is a structural diagram of a door hinge;
[0024] Figure 6 This is an exploded view of the door hinge in the unfolded state;
[0025] Figure 7 This is an exploded view of the door hinge in the folded state;
[0026] Figure 8 This is an assembly drawing of the second articulated arm, transmission mechanism, and buffer mechanism in the deployed state;
[0027] Figure 9 This is an assembly diagram of the second articulated arm, transmission mechanism, and buffer mechanism in the folded state.
[0028] Label Explanation:
[0029] Hinge base 1, fixed base plate 11, first mounting part 111, notch 117, connecting part 114, mounting groove 115, inclined platform 116, second mounting part 112, socket 118, adjustable base plate 12, intermediate element 13, insert block 131, mounting hole 132, first fastening structure 6, first hook, second fastening structure 7, second fastening part 71, second hook 711, second pressing part 72, second mounting shaft 73, second elastic element 74, sliding connection structure 8, connecting hole 81, guide hole 82, bolt 83. Detailed Implementation
[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings:
[0031] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by "front", "rear", "up", "down", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] Example 1:
[0033] See Figure 1-4 As shown, this embodiment discloses a hinge base 1, including a fixed base plate 11, an adjustable base plate 12, and an intermediate element 13. The fixed base plate 11 includes a first mounting part 111 and a second mounting part 112 disposed on the left and right sides of the first mounting part 111. The intermediate element 13 and the adjustable base plate 12 are U-shaped. The front end and the rear end of the intermediate element 13 are provided with fastening structures. The intermediate element 13 is sleeved on the first mounting part 111, and its fastening structures are respectively fastened to the front end and the rear end of the first mounting part 111, forming a clamp-like grip on the first mounting part 111. The adjustable base plate 12 is sleeved on the intermediate element 13.
[0034] The above-mentioned fastening structure includes a first fastening structure 6 and a second fastening structure 7. The first fastening structure 6 is fixedly disposed on both sides of the front end of the intermediate element 13, and the second fastening structure 7 is disposed on the rear end of the intermediate element 13 in a flip-up manner.
[0035] The aforementioned first fastening structure 6 includes a first hook, and the bottom of the first mounting part 111 is recessed to form a clearance groove, and a notch 117 with a front opening is provided to cooperate with the first hook. The first hook is fastened to the bottom of the notch 117. In this solution, the bottom of the first mounting part 111 is designed to be recessed so that the fastening structure can be fastened to the bottom, thereby avoiding interference when the base is installed on the cabinet or frame.
[0036] The aforementioned second fastening structure 7 includes a second fastening member 71, a second pressing part 72, a second mounting shaft 73, and a second elastic member 74. The second pressing part 72 is located on the upper part of the intermediate element 13. The second fastening member 71 and the second elastic member 74 are rotatably mounted on the intermediate element 13 via the second mounting shaft 73 and are located on the rear side of the second pressing part 72. The lower part of the second fastening member 71 is provided with a second hook 711. One end of the second elastic member 74 presses against the second pressing part 72, and the other end presses against the rear side of the second hook to provide forward pressure for the second hook 711, so that the second hook 711 is fastened forward onto the fixed base plate 11. The intermediate element 13 is provided with a mounting hole 132.
[0037] The rear of the first mounting part 111 is provided with a connecting part 114, which is U-shaped, and the second hook 711 is fastened to the connecting part 114.
[0038] The first mounting part 111 is provided with a mounting groove 115 along its length direction, and a space for accommodating the buffer mechanism is formed between the inner side of the intermediate element 13 and the mounting groove 115.
[0039] The connecting part 114 is provided with inclined platforms 116 on both sides to allow the intermediate element 13 to be interference-fitted with the connecting part 114, thereby increasing the stability of the connection between the base and the intermediate element 13.
[0040] The intermediate element 13 has downwardly extending plugs 131 on both sides, and the first mounting part 111 is adapted to the plugs and has a plug 118.
[0041] The aforementioned intermediate element 13 and the adjustable base plate 12 are provided with a sliding connection structure 8, and the adjustable base plate 12 is provided on the intermediate element 13 through the sliding connection structure 8.
[0042] The aforementioned sliding connection structure 8 specifically includes a connecting hole 81 and a guide hole 82 with a preset length. The connecting hole 81 is located on one of the adjustable base plate 12 and the intermediate element 13, while the guide hole 82 is located on the other. They are connected in series by a bolt 83: if the connecting hole 81 is located on the adjustable base plate 12, the bolt 83 moves with the adjustable base plate 12, sliding along the sidewall of the guide hole 82 on the intermediate element 13; conversely, if the connecting hole 81 is located on the intermediate element 13, the bolt 83 remains fixed to the intermediate element 13, and the adjustable base plate 12 is slidably connected through the cooperation of the guide hole 82 and the bolt 83. This design ensures that the adjustable base plate 12 can move stably and smoothly back and forth relative to the intermediate element 13.
[0043] The aforementioned sliding connection structure 8 is arranged in two sets, one in front and one behind.
[0044] The hinge base 1 of this utility model has an intermediate element 13 and an adjustable base plate 12 both configured in a U-shape, so that the adjustable base plate 12 is assembled to the upper middle part of the fixed base plate 11 through the intermediate element 13. Since the front and rear ends of the intermediate element 13 are equipped with a snap-fit structure, they can be tightly snapped to the front and rear ends of the first mounting part 111 after assembly, thereby firmly clamping the fixed base plate 11 and ensuring the structural stability and connection reliability of the entire hinge base 1.
[0045] Example 2:
[0046] See Figure 5-9 As shown, this embodiment discloses a door hinge, including a hinge base 1, a hinge cup 2, a hinge arm mechanism 4, and a buffer mechanism 3 as in Embodiment 1. The hinge arm mechanism includes a first hinge arm 41 and a second hinge arm 42. One end of the first hinge arm 41 and the second hinge arm 42 are respectively connected to the hinge base 1, and the other end is respectively hinged to the hinge cup 2, so that the hinge base 1, the first hinge arm 41, the hinge cup 2 and the second hinge arm 42 form a swingable four-bar linkage. The buffer mechanism 3 is disposed on the hinge base 1, and its movable end is linked to the hinge arm mechanism 4.
[0047] The specific design of the above-mentioned four-bar linkage is as follows: the hinge arm mechanism 4 includes an elastic buffer 43; the adjustable base plate 12 has a first hinge hole 121 and a second hinge hole 122 inclinedly distributed on both sides; the hinge cup 2 has a third hinge hole 21 and a fourth hinge hole 22 inclinedly distributed on its side wall; the rear side of the first hinge arm is provided with a first shaft hole 411 that mates with the first hinge hole 121, and the front side is provided with a second shaft hole 412 that mates with the third hinge hole 21; the first hinge hole 121 and the first shaft hole 411 are connected by a first linkage... The first connecting shaft 123 is connected, and the elastic buffer 43 is sleeved on the first connecting shaft 123. The third hinge hole 21 and the second shaft hole 412 are connected through the second connecting shaft 23. The rear side of the second hinge arm 42 is provided with the third shaft hole 421 to cooperate with the second hinge hole 122, and the front side is provided with the fourth shaft hole 422 to cooperate with the fourth hinge hole 22. The second hinge hole 122 and the third shaft hole 421 are connected through the third connecting shaft 124, and the fourth hinge hole 22 and the fourth shaft hole 422 are connected through the fourth connecting shaft 24. Since the base 1 is fixed on the cabinet or frame, the hinge cup 2 can rotate relative to the base 1. Therefore, when the door is opened or closed, the hinge cup 2 rotates synchronously, driving the first hinge arm 41 to rotate around the first hinge hole 121 and the second hinge arm 42 to rotate around the second hinge hole 122. When the door is closed, the hinge arm mechanism 4 swings downward so that the hinge can be folded. When the door is opened, the hinge cup 2 returns to its original position parallel to the base 1. The elastic buffer 43 in this solution can absorb and reduce the impact and vibration generated when the door closes, thus making the closing process smoother and quieter.
[0048] The hinge holes and shaft holes described above have specific center distance ranges, as follows: the center distance between the first hinge hole 121 and the second hinge hole 122 is between 12.8-14.8 mm; the center distance between the third hinge hole 21 and the fourth hinge hole 22 is between 7-9 mm; the center distance between the first shaft hole 411 and the second shaft hole 412 is between 18-20 mm; and the center distance between the third shaft hole 421 and the fourth shaft hole 422 is between 17.23-19.23 mm. These specific center distance ranges between the hinge holes and shaft holes, without increasing the overall size of the base 1 and the hinge cup 2, lengthen the force-bearing lever by increasing the center distance between adjacent nodes of the four-bar linkage, reducing the spring load, and decreasing the impact damage of the closing force on the buffer mechanism 3, thereby improving the service life and stability of the hinge.
[0049] See Figure 8-9 As shown, the specific connection scheme between the hinge arm mechanism 4 and the buffer mechanism is as follows: the rear of the second hinge arm 42 is provided with a driving protrusion 423. The buffer mechanism 3 and the second hinge arm 42 are connected by a transmission mechanism 5. The transmission mechanism 5 includes a first transmission arm and a second transmission arm 52. The upper ends of the first transmission arm and the second transmission arm 52 are hinged to form a V-shaped structure. The lower ends of the first transmission arm and the second transmission arm 52 are respectively hinged to the second hinge arm 42 and the buffer mechanism 3, so that the V-shaped structure folds or extends under the drive of the first hinge arm 41, and at the same time drives the buffer mechanism 3 to stretch or compress. In this scheme, when the hinge is in the unfolded state, the hinge cup 2 is parallel to the base 1, the second transmission arm 52 is in a parallel state, and its rear part squeezes the V-shaped structure to fold it. The movable end of the buffer mechanism 3 stretches forward. When the hinge changes to the closed state, the hinge cup 2 and the base 1 change from parallel to perpendicular. The front end of the second hinge cup 2 swings downward and the rear end moves forward, so that the U-shaped structure is unfolded, thereby compressing the movable end of the buffer mechanism 3 towards its main body.
[0050] The aforementioned buffer mechanism 3 is a hydraulic cylinder with a small-angle buffering function. It should be noted that the internal structure of the hydraulic cylinder of this invention can adopt existing hydraulic cylinder solutions with small-angle buffering functions, which will not be described in detail here.
[0051] This embodiment of the hinge not only utilizes the hinge base 1 of Embodiment 1, but also incorporates a four-bar linkage combined with a buffer mechanism 3, achieving a more optimized force distribution. This design not only reduces the load on traditional large-diameter hinge cups 2 (e.g., Φ40mm), but also enhances the load-bearing capacity of the entire hinge system through the synergistic effect of multiple connection points. Therefore, even without using large-diameter hinge cups 2, stable installation and smooth operation of a 25mm thick door panel can be ensured. Simultaneously, it solves the problems of excessively large opening size and visually bulky appearance caused by traditional large-diameter hinge cups 2. During operation, the hinge cup 2 can rotate relative to the base 1, and the front end of the four-bar linkage swings with the rotation of the hinge cup 2. When the door opens or closes, the hinge cup 2 rotates synchronously, driving the first hinge arm 41 and the second hinge arm 42 to rotate around their respective hinge holes, thus realizing the folding and unfolding of the hinge.
[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. 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 hinge base, characterized in that, The device includes a fixed base plate, an adjustable base plate, and an intermediate element. The fixed base plate includes a first mounting part and a second mounting part located on the left and right sides of the first mounting part. The intermediate element and the adjustable base plate are U-shaped. The front and rear ends of the intermediate element are provided with fastening structures. The intermediate element is sleeved on the first mounting part, and its fastening structures are respectively fastened to the front and rear ends of the first mounting part to form a clamping grip on the first mounting part. The adjustable base plate is sleeved on the intermediate element.
2. The hinge base according to claim 1, characterized in that, The fastening structure includes a first fastening structure and a second fastening structure. The first fastening structure is fixedly disposed on the front and rear sides of the intermediate element, and the second fastening structure is disposed on the rear end of the intermediate element in a way that allows it to be flipped up and down.
3. The hinge base according to claim 2, characterized in that, The first fastening structure includes a first hook, the bottom of the first mounting part is recessed to form a clearance groove, and a notch with a front opening is provided to cooperate with the first hook, and the first hook is fastened to the bottom of the notch.
4. The hinge base according to claim 2, characterized in that, The second fastening structure includes a second fastening member, a second pressing part, a second mounting shaft, and a second elastic member. The second pressing part is located on the upper part of the intermediate element. The second fastening member and the second elastic member are rotatably mounted on the intermediate element through the second mounting shaft and are located on the rear side of the second pressing part. The lower part of the second fastening member is provided with a second hook. One end of the second elastic member presses against the second pressing part, and the other end presses against the rear side of the second hook to provide forward pressure for the second hook, so that the second hook is fastened forward on the fixed base plate.
5. The hinge base according to claim 1 or 4, characterized in that, The rear of the first mounting part is provided with a connecting part, which is U-shaped, and the fastening structure is fastened forward onto the connecting part.
6. The hinge base according to claim 5, characterized in that, The connecting part has inclined platforms on both sides.
7. The hinge base according to claim 1, characterized in that, The first mounting part has a mounting groove along its length, and a space for accommodating the buffer mechanism is formed between the inner side of the intermediate element and the mounting groove.
8. The hinge base according to claim 1, characterized in that, The intermediate element has downwardly extending plugs on both sides, and the first mounting part is adapted to the plugs and has a socket.
9. The hinge base according to claim 8, characterized in that, A sliding connection structure is provided between the intermediate element and the adjustable base plate, and the adjustable base plate is mounted on the intermediate element and can move back and forth through the sliding connection structure.
10. A door hinge, comprising a base, a hinge cup, and a hinge arm mechanism connecting the two, characterized in that, The base is a hinge base according to any one of claims 1-9.