Hinge for a bottom-hinged door and bathroom cabinet
By designing a hinge for a flip-down door, including a fixed plate, arm plate, and elastic element, the inconvenience and stability issues of existing flip-down doors have been resolved, achieving a smooth, stable, and safe user experience, suitable for bathroom cabinet designs in confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 冯秋波
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, side-opening doors can easily interfere with the space on the left and right sides in narrow spaces and occupy cabinet openings, while sliding doors occupy cabinet space during sliding. Upward-opening doors are inconvenient to operate and pose safety hazards, making it difficult to achieve the smooth and stable user experience of downward-opening doors.
Design a hinge for a folding door, including a first fixed plate, a second fixed plate, and an arm plate. It is equipped with an elastic element to buffer impact force, a long and short arm plate design to prevent swaying, a baffle to limit the opening angle, and an oblong hole to adjust the installation position to ensure the coordinated operation of the hinge system.
It enables smooth opening and stable closing of the flip-down door, avoiding spatial interference and door panel collision, improving operational convenience and safety, and adapting to the usage needs of users of different heights.
Smart Images
Figure CN224496143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom cabinet technology, and in particular to a hinge for a flip-down door and a bathroom cabinet. Background Technology
[0002] In daily life, we encounter various door opening methods, including but not limited to side-opening, upward-opening, downward-opening, and sliding doors. Among these, side-opening doors are undoubtedly the most common and widely used in various types of furniture and cabinets. However, when the space is relatively small, or when cabinets are arranged side-by-side, side-opening doors can become somewhat inconvenient, as they inevitably interfere with the space on both sides and may even cause collisions between adjacent door panels, thus affecting the user experience.
[0003] In contrast, the design of sliding doors solves the above problems to some extent. By sliding the door horizontally, it avoids interference between the left and right spaces and collisions between the door panels. However, sliding doors also have their own limitations. The door occupies part of the cabinet opening area during sliding, which makes it particularly inconvenient to take out or put in larger items, thus limiting the use of the cabinet. As for the top-opening door, this design allows the door panel to occupy only the upper space when opened, without interfering with the space on the left and right sides, effectively avoiding collisions between adjacent door panels, and without occupying the cabinet opening area. It seems to be a more ideal solution. However, top-opening doors require pulling the door panel down to close, which is very inconvenient for shorter women or children to operate, and may even pose certain safety hazards.
[0004] Considering the advantages and disadvantages of various door opening methods, the downward-opening door has gradually shown its unique advantages, becoming the best choice in many scenarios. To achieve smooth and stable downward opening, a specialized hinge mechanism is needed to ensure a good user experience during both opening and closing. Utility Model Content
[0005] This utility model aims to at least solve one of the technical problems existing in the prior art. To this end, a first aspect of this utility model provides a hinge for a folding door, including a first fixed plate, a second fixed plate, and an arm plate; the second fixed plate includes a first sub-plate and a second sub-plate connected to the first sub-plate, the first sub-plate and the second sub-plate are perpendicular to each other, and the first sub-plate is located below the first fixed plate; one end of the arm plate is rotatably connected to the first fixed plate, and the other end of the arm plate is rotatably connected to the first sub-plate.
[0006] According to some embodiments of this utility model, it also includes an elastic element, one end of which is connected to the first fixed plate and the other end of which is connected to the arm plate, effectively buffering the impact force generated by the cabinet door when opening and closing the door.
[0007] According to some embodiments of this utility model, the elastic element is provided with a first hook, and the side of the first fixing plate is bent to form a hook finger, which is used to hook the first hook, so that the installation of the elastic element can be easily completed and the whole process is simple and efficient.
[0008] According to some embodiments of this utility model, the elastic element is provided with a second hook, and the arm plate has a connecting hole for hooking the second hook, which can easily complete the installation of the elastic element. The whole process is simple and efficient.
[0009] According to some embodiments of this utility model, the arm plate includes a long arm plate and a short arm plate. The two ends of the long arm plate and the short arm plate are respectively rotatably connected to the first fixed plate and the first sub-plate, which effectively prevents the cabinet door from shaking during or after opening, thereby ensuring a comfortable and stable user experience.
[0010] According to some embodiments of this utility model, the first sub-plate is provided with two second mounting holes, which are arranged diagonally from left to right. The second mounting hole on the left is used to connect with the short arm plate, and the second mounting hole on the right is used to connect with the long arm plate. This layout ensures that the long arm plate and the short arm plate will not interfere with each other during operation, thereby ensuring the coordinated operation of the entire hinge system.
[0011] According to some embodiments of this utility model, a baffle is formed by bending the first fixing plate. The baffle is used to restrict the movement of the long arm plate, thereby ensuring that the cabinet door can be opened to a preset angle, which ensures both ease of use and safety.
[0012] According to some embodiments of the present invention, the lower part of the first fixing plate is provided with a space, the space is close to the second fixing plate, and the outline of the space matches the outline of the first sub-plate; in the closed state, the space is used to accommodate the first sub-plate, and in the closed state, the space can effectively accommodate the first sub-plate, thereby ensuring that the cabinet door can be completely closed.
[0013] According to some embodiments of this utility model, the first fixing plate is provided with a plurality of first oblong holes, and the second sub-plate is provided with a plurality of second oblong holes. The first oblong holes and the second oblong holes are used to insert fixing screws. The fixing screws can be finely adjusted and moved within the first oblong holes and the second oblong holes, thereby flexibly adjusting the installation position of the first fixing plate and the second fixing plate. This ensures that the cabinet door can completely close the opening of the cabinet when it is closed or opened, and can also effectively prevent the cabinet door from becoming crooked, ensuring the overall aesthetics and practicality.
[0014] The second aspect of this utility model provides a bathroom cabinet, including a cabinet body, a cabinet door, and a hinge. The hinge is a type of hinge for a flip-down door as described above. The first fixing plate is fixed to the inner wall of the cabinet body, and the second sub-plate is fixed to the cabinet door.
[0015] 1. When in use, fix the first fixing plate to the inner wall of the cabinet and fix the second sub-plate to the cabinet door; pull the cabinet door backward, and the arm plate will hold the cabinet door to realize the downward opening of the door, which is easy to install.
[0016] 2. To limit the angle at which the cabinet door opens downwards, a baffle is formed by bending the first fixed plate. The baffle is used to limit the movement of the long arm plate.
[0017] 3. When the cabinet door is flipped down, the cabinet space where the cabinet door 102 is installed can be fully exposed, which greatly facilitates the operation of taking and putting away items in the cabinet space; at the same time, it also avoids the cabinet door from obstructing other doors, ensuring the functionality of other doors, and will not affect the opening of other doors.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0020] Figure 1 This is a schematic diagram of the hinge in an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the hinge explosion state according to an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the first fixing plate according to an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the second fixing plate in an embodiment of the present utility model;
[0024] Figure 5 This is a three-dimensional schematic diagram of the bathroom cabinet upper compartment in the open state according to an embodiment of the present utility model;
[0025] Figure 6 This is a front view of the bathroom cabinet upper compartment in the open state according to an embodiment of the present utility model;
[0026] Figure 7 for Figure 6 Schematic diagram of the AA section;
[0027] Figure 8 This is a three-dimensional schematic diagram of the bathroom cabinet's lower compartment in the open state according to an embodiment of this utility model;
[0028] Figure 9 This is a front view diagram of the bathroom cabinet's lower compartment in the open state according to an embodiment of this utility model;
[0029] Figure 10 for Figure 9 Schematic diagram of the BB cross section. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0031] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0032] Reference Figure 1 , 2 A hinge structure for a flip-down door design, which mainly consists of three parts: a first fixing plate 100, a second fixing plate 200, and an arm plate 300.
[0033] The second fixing plate 200 is further subdivided into two sub-components: a first sub-plate 210 and a second sub-plate 220. The first sub-plate 210 and the second sub-plate 220 are connected to each other, and the first sub-plate 210 and the second sub-plate 220 connected to it are perpendicular to each other. Specifically, the first sub-plate 210 is located below the first fixing plate 100. One end of the arm plate 300 is fixed to the first fixing plate 100 by a rotatable connection, while the other end of the arm plate 300 is rotatably connected to the first sub-plate 210.
[0034] In actual use, the first fixing plate 100 needs to be securely installed on the inner wall of the cabinet 101, and then the second sub-plate 220 is fixed to the cabinet door 102. When the cabinet door needs to be opened, simply pull the cabinet door 102 backward. At this time, the arm plate 300 will play its role, pulling the cabinet door 102, thereby achieving the effect of opening the door downward. It is worth mentioning that this design not only makes the opening operation simple, but also makes the installation process extremely convenient.
[0035] Reference Figure 1 , 2 As shown, in order to effectively buffer the impact force generated by the cabinet door 102 when opening and closing the door, an elastic element 400 is specially added; one end of the elastic element 400 is connected to the first fixed plate 100, and the other end of the elastic element 400 is connected to the arm plate 300.
[0036] When the cabinet door 102 is opened downwards, the arm plate 300 pulls the elastic element 400, causing it to deform, thereby effectively absorbing the impact force when the door is opened.
[0037] During the closing process, the elastic force generated by the elastic element 400 when it recovers from deformation will pull the arm plate 300, thereby accelerating the closing speed of the cabinet door 102 and ensuring the smooth and rapid closing action.
[0038] Reference Figure 1 , 2 As shown, to further improve the ease of installing the elastic element 400, a bent hook 110 is specially designed on the side of the first fixing plate 100. Meanwhile, a connecting hole 330 is provided on the arm plate 300. The elastic element 400 itself is equipped with a first hook 410 and a second hook 420. By hooking the hook 110 with the first hook 410 and then hooking the second hook 420 into the connecting hole 330, the installation of the elastic element 400 can be easily completed. The entire process is simple and efficient.
[0039] Reference Figure 1 , 2 As shown, in this embodiment, the arm plate 300 is divided into two parts: a long arm plate 310 and a short arm plate 320. This design aims to increase the stability of the cabinet door 102 during the downward opening process and after the door is opened, effectively preventing the cabinet door 102 from shaking during or after the door is opened, thereby ensuring a comfortable and stable user experience.
[0040] During installation, the two ends of the long arm plate 310 are rotatably connected to the first fixed plate 100 and the first sub-plate 210 by rivets, and the installation method of the short arm plate 320 is similar, with its two ends also rotatably installed on the first fixed plate 100 and the first sub-plate 210 by rivets.
[0041] The first fixed plate 100 is provided with two first mounting holes 150. The two first mounting holes 150 are arranged in layers, and the positions of the two first mounting holes 150 are staggered to avoid interference between the long arm plate 310 and the short arm plate 320 during rotation.
[0042] The upper first mounting hole 150 is used for rotatable connection with the long arm plate 310, and the lower first mounting hole 150 is used for rotatable connection with the short arm plate 320.
[0043] To facilitate the mounting of the long arm plate 310 and the short arm plate 320 on the first sub-plate 210, two second mounting holes 211 are provided on the first sub-plate 210. The ends of the long arm plate 310 and the short arm plate 320 are respectively rotatably mounted in the two second mounting holes 211 by rivets.
[0044] Reference Figure 2 As shown, in this embodiment, the two second mounting holes 211 are arranged diagonally from left to right. The second mounting hole 211 on the left is used to connect with the short arm plate 320, while the second mounting hole 211 on the right is used to connect with the long arm plate 310. This layout ensures that the long arm plate 310 and the short arm plate 320 will not interfere with each other during operation, thereby ensuring the coordinated operation of the entire hinge system.
[0045] Reference Figure 3 As shown, in order to limit the angle at which the cabinet door 102 flips down, a bent baffle 120 is specially designed on the first fixed plate 100. The baffle 120 is located on the right side of the long arm plate 310. During the process of the cabinet door 102 flipping down, the baffle 120 will restrict the movement of the long arm plate 310, thereby ensuring that the cabinet door 102 can be opened to the preset angle, which ensures both ease of use and safety.
[0046] Furthermore, by grasping the handle at the top of the cabinet door, as the cabinet door 102 flips upward, the long arm plate 310 and the short arm plate 320 rotate upward about the first mounting hole 150, while the cabinet door 102 rotates outward about the second mounting hole 211. When the long arm plate 310 rotates upward to the end of its stroke, the baffle plate 120 contacts the long arm plate 310, causing the long arm plate 310 to stop rotating. At this time, the opening angle of the cabinet door 102 is 45°.
[0047] Reference Figure 1 , 3As shown in Figure 7, since the second fixing plate 200 is composed of the first sub-plate 210 and the second sub-plate 220 connected to it, and the two are perpendicular to each other, the first sub-plate 210 will move to the front position of the side panel of the cabinet 101 after the cabinet door 102 is closed. At this time, if the first fixing plate 100 interferes with the first sub-plate 210, the cabinet door 102 will not be able to close completely. To solve this problem, a gap 140 is specially designed at the lower part of the first fixing plate 100. The gap 140 is close to the second fixing plate 200, and its outline matches the outline of the first sub-plate 210. In the closed state, the gap 140 can effectively accommodate the first sub-plate 210, thereby ensuring that the cabinet door 102 can be completely closed.
[0048] Reference Figure 3 , 4 As shown, to further improve the ease of installation of the first fixing plate 100 and the second fixing plate 200, multiple first oblong holes 130 are provided on the first fixing plate 100, and multiple second oblong holes 221 are provided on the second sub-plate 220. These oblong holes are designed to accommodate fixing screws, which can be finely adjusted within the oblong holes, thereby flexibly adjusting the installation positions of the first fixing plate 100 and the second fixing plate 200. This design not only ensures that the cabinet door 102 completely seals the opening of the cabinet body 101 when closed or open, but also effectively prevents the cabinet door 102 from becoming misaligned, ensuring both overall aesthetics and practicality.
[0049] Reference Figure 5 , 7 As shown, a cabinet design for a bathroom includes a cabinet body 101, a cabinet door 102, and a hinge for a downward-opening door as described above. In practical application, a first fixing plate 100 is fixed to the inner wall of the cabinet body 101, while a second sub-plate 220 is fixed to the cabinet door 102.
[0050] Reference Figure 7 , 10 As shown, in this embodiment, the cabinet 101 is internally divided into an upper cabinet compartment 101A and a lower cabinet compartment 101B. The upper cabinet compartment 101A uses a side-opening glass mirror door, while the lower cabinet compartment 101B is located below the upper cabinet compartment 101A. The cabinet door 102 is installed in the front opening of the lower cabinet compartment 101B. Considering that if the lower cabinet compartment 101B adopts a side-opening door design, it will interfere with the opening of the upper glass mirror door, and the upward-opening door method will also affect the use and opening of the glass mirror door, the lower cabinet compartment 101B specifically uses the aforementioned downward-opening door hinge to connect the cabinet door 102.
[0051] First, the first fixing plate 100 needs to be securely installed on the inner wall of the lower cabinet compartment 101B. Then, the second sub-plate 220 is fixed to the cabinet door 102. When the cabinet door needs to be opened, simply pull the cabinet door 102 backward. At this time, the arm plate 300 will play its role, pulling the cabinet door 102, thereby achieving the effect of opening the door downward.
[0052] When the cabinet door 102 needs to be flipped down, this design can fully expose the lower cabinet compartment 101B, greatly facilitating the operation of taking out and putting in items; at the same time, this design also avoids the cabinet door from obstructing the glass mirror door, ensuring that the glass mirror door can be used normally for reflection and will not affect the opening of the glass mirror door.
[0053] In addition, this design takes into account the needs of shorter women or children, making it easier for them to open and close the cabinet doors, thus significantly improving the overall user experience.
[0054] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.
[0055] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A hinge for a flip-down door, characterized in that, include: First fixing plate (100); The second fixing plate (200) includes a first sub-plate (210) and a second sub-plate (220) connected to the first sub-plate (210). The first sub-plate (210) and the second sub-plate (220) are perpendicular to each other, and the first sub-plate (210) is located below the first fixing plate (100). An arm plate (300) is provided, one end of which is rotatably connected to the first fixed plate (100), and the other end of which is rotatably connected to the first sub-plate (210).
2. The hinge for a downward-opening door according to claim 1, characterized in that, It also includes an elastic element (400), one end of which is connected to the first fixing plate (100), and the other end of which is connected to the arm plate (300).
3. A hinge for a tilt-down door according to claim 2, characterized in that, The elastic element (400) is provided with a first hook (410), and the side of the first fixing plate (100) is bent to form a hook (110), which is used to hook the first hook (410).
4. A hinge for a tilt-down door according to claim 2, characterized in that, The elastic element (400) is provided with a second hook (420), and the arm plate (300) has a connecting hole (330) for hooking the second hook (420).
5. A hinge for a tilt-down door according to claim 1 or 2, characterized in that, The arm plate (300) includes a long arm plate (310) and a short arm plate (320), and the two ends of the long arm plate (310) and the short arm plate (320) are respectively rotatably connected to the first fixed plate (100) and the first sub-plate (210).
6. A hinge for a tilt-down door according to claim 5, characterized in that, The first fixing plate (100) is provided with two first mounting holes (150). The two first mounting holes (150) are arranged in layers, and the positions of the two first mounting holes (150) are staggered. The first mounting hole (150) located above is used to rotatably connect with the long arm plate (310), and the first mounting hole (150) located below is used to rotatably connect with the short arm plate (320). The first sub-plate (210) is provided with two second mounting holes (211). The two second mounting holes (211) are arranged diagonally from left to right. The second mounting hole (211) on the left is used to rotatably connect with the short arm plate (320), and the second mounting hole (211) on the right is used to rotatably connect with the long arm plate (310).
7. A hinge for a tilt-down door according to claim 5, characterized in that, A baffle (120) is formed by bending on the first fixed plate (100). The baffle (120) is located on the right side of the long arm plate (310). When the long arm plate (310) rotates upward to the end of its stroke, the baffle (120) contacts the long arm plate (310).
8. A hinge for a tilt-down door according to claim 1, characterized in that, The lower part of the first fixing plate (100) is provided with a cavity (140), the cavity (140) is close to the second fixing plate (200), and the outline of the cavity (140) matches the outline of the first sub-plate (210); in the closed state, the cavity (140) is used to accommodate the first sub-plate (210).
9. A hinge for a tilt-down door according to claim 1, characterized in that, The first fixing plate (100) is provided with a plurality of first waist-shaped holes (130), and the second sub-plate (220) is provided with a plurality of second waist-shaped holes (221). The first waist-shaped holes (130) and the second waist-shaped holes (221) are used to install fixing screws.
10. A bathroom cabinet, characterized in that, The cabinet includes a cabinet body (101), a cabinet door (102), and a hinge. The hinge is a hinge for a flip-down door as described in any one of claims 1 to 9. The first fixing plate (100) is fixed to the inner wall of the cabinet body (101), and the second sub-plate (220) is fixed to the cabinet door (102).