Four-axis invisible hinge

Abstract

The utility model relates to the technical fields of hinge especially four -axis invisible hinge, including door leaf page spare and door frame page spare, door frame page spare and door leaf page spare are connected through hinged component, the recessed accommodation box for accommodating hinged component of door frame page spare, hinged component includes c pivot and d pivot, the cut -out of accommodation box both ends is set up, and is set up the opening in the side close to hinged component, accommodation box is provided with mounting block between opening and cut -out, both the mounting block all are equipped with the first through -hole for installing c pivot and the second through -hole for installing d pivot, through setting up opening and cut -out in accommodation box, reduce the material cost, simultaneously because the cut -out of accommodation box both ends is cut, makes the groove position of originally installing c pivot and d pivot formed the first through -hole and the second through -hole to the outside of accommodation box, to improve the assembly fault tolerance of four -axis invisible hinge.

Description

Technical Field

[0001] This utility model relates to the technical field of hinges, and in particular to a four-axis invisible hinge. Background Technology

[0002] Hinges play a vital role in people's lives and occupy an important position among furniture hardware accessories. The quality of hinges directly affects the use of furniture and doors. As people's living standards continue to improve, their requirements for home furnishing products are also increasing. Against this backdrop, invisible hinges have emerged. By modifying the existing hinge structure, they can be installed inside the hinge body and frame, thus achieving the effect of hiding the hinge when closed, which has great market potential.

[0003] Since hinges primarily support the door leaf and allow it to move within the door frame, modern concealed hinges typically have thicker and wider hinge components. The components installed on the door frame are generally larger and heavier than those on the door leaf, especially in four-axis concealed hinges. This results in a greater material requirement for the frame-mounted components, increasing the overall cost of the hinge, as can be seen from the publication (announcement) CN222140976U, "A Three-Dimensional Adjustable Hinge." Furthermore, existing four-axis concealed hinges show that some pivots are installed on the door frame components; pivots C and D need to be installed onto the door frame. On the hinge, the door frame hinge has mounting grooves B for mounting the C-axis and D-axis respectively. The distance between the bottom of the two mounting grooves B, i.e. the longest distance, is n. It is understood that the various parts of the hinge, including the C-axis, D-axis and the hinge itself, are manufactured separately and then assembled as a whole. However, errors inevitably occur during the manufacturing process, causing the C-axis and D-axis to be longer or shorter than n. When the C-axis or D-axis is shorter than n, it can still be installed with the hinge using washers, etc. But when the C-axis or D-axis is longer than n, it cannot be assembled with the door frame hinge and can only be ground down or scrapped.

[0004] Therefore, reducing installation problems caused during the production process and improving the installation fault tolerance rate are urgent issues that the industry needs to address. Utility Model Content

[0005] The present invention provides a four-axis invisible hinge to reduce material costs while improving the fault tolerance rate of hinge assembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a four-axis concealed hinge, comprising a door leaf hinge and a door frame hinge, wherein the door frame hinge and the door leaf hinge are connected by a hinge assembly, the door frame hinge has a recessed receiving box for accommodating the hinge assembly, the hinge assembly includes a C-axis and a D-axis, the receiving box has cuts at both ends and an opening on the side near the hinge assembly, the receiving box has mounting blocks between the opening and the cuts, and both mounting blocks have a first through hole for mounting the C-axis and a second through hole for mounting the D-axis.

[0007] Furthermore, the hinge assembly includes a pivot a, a pivot b, a first hinge plate, a second hinge plate, and a third hinge plate. The first hinge plate is mounted on the door leaf. One side of the second and third hinge plates is connected to the first hinge plate via pivot a and pivot b, respectively. Pivot c passes through the other side of the second hinge plate, and pivot d passes through the other side of the third hinge plate.

[0008] Furthermore, both the door leaf hinges and the door frame hinges are made of aluminum alloy.

[0009] Furthermore, both cuts are fitted with plastic seals.

[0010] Furthermore, the side of the plastic seal facing the cut is provided with a groove.

[0011] Furthermore, the plastic seal has a third through hole corresponding to the c-axis and the d-axis.

[0012] Furthermore, a fastener is provided at the edge of the side of the plastic seal facing the cut, and the opening end face is provided with a fastening groove for engaging with the fastener.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by opening and cutting the housing box, the material cost is reduced. At the same time, due to the cuts at both ends of the housing box, the slots that were originally used to install the C-axis and D-axis are formed into the first through hole and the second through hole that extend to the outside of the housing box, thereby improving the assembly error tolerance of the four-axis invisible hinge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a perspective view of the container box in this utility model.

[0016] Figure 3 This is a side view of the housing box in this utility model.

[0017] Figure 4 This is a cross-sectional view of the present invention.

[0018] Figure 5 This is a schematic diagram of the connection of the hinge assembly in this utility model.

[0019] Figure 6 This is a schematic diagram of the structure of one of the plastic seals in this utility model.

[0020] Figure 7 This is a schematic diagram of another plastic sealant in this utility model. 3

[0021] Figure 8 This is a schematic diagram of the existing door frame component structure.

[0022] In the diagram: door leaf component 1, door frame component 2, receiving box 3, plastic seal 4, cut 31, opening 32, groove 41, third through hole 42, fastener 43, a pivot 100, first hinge plate 111, b pivot 200, second hinge plate 222, c pivot 300, mounting block 311, first through hole 312, second through hole 313, third hinge plate 333, d pivot 400. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As shown in the attached figure, this utility model discloses a four-axis concealed hinge, including a door leaf hinge 1 and a door frame hinge 2. The door frame hinge 2 and the door leaf hinge 1 are connected by a hinge assembly. The door frame hinge 2 has a recessed receiving box 3 for accommodating the hinge assembly. The hinge assembly includes a c-axis 300 and a d-axis 400. The receiving box 3 has cutouts 31 at both ends and an opening 32 on the side near the hinge assembly. The receiving box 3 has mounting blocks 311 between the opening 32 and the cutouts 31. Both mounting blocks 311 have a first through hole 312 for mounting the c-axis 300 and a second through hole 313 for mounting the d-axis 400.

[0025] refer to Figure 8 It is necessary to understand the existing door frame component 2. Its receiving box 3 has mounting grooves at both ends for mounting the c-axis 300 and the d-axis 400. The distance n between the bottom of the two mounting grooves is fixed. When the length of the c-axis 300 / d-axis 400 is too long or corresponds to the distance n, assembly cannot be completed. If the length corresponds to the distance n, after assembly, the two ends of the c-axis 300 / d-axis 400 will abut against the bottom of the mounting groove, which will cause friction during use and affect the user experience.

[0026] This utility model discloses a four-axis invisible hinge. By opening 32 and cutting 31 in the receiving box 3, the material cost is reduced. At the same time, due to the cutting 31 at both ends of the receiving box 3, the slots that were originally used to install the c-axis 300 and d-axis 400 are transformed into a first through hole 312 and a second through hole 313 that extend to the outside of the receiving box 3. This allows n to become long enough to accommodate excessively long c-axis 300 and d-axis 400. Even if the c-axis 300 and d-axis 400 are too long, installation with the door frame hinge 2 can still be completed, thereby improving the assembly error tolerance of the four-axis invisible hinge.

[0027] In this embodiment, the hinge assembly includes an a-axis 100, a b-axis 200, a first hinge plate 111, a second hinge plate 222, and a third hinge plate 333. The first hinge plate 111 is mounted on the door leaf 1. One side of the second hinge plate 222 and the third hinge plate 333 are respectively connected to the first hinge plate 111 via the a-axis 100 and the b-axis 200. The c-axis 300 passes through the other side of the second hinge plate 222. The d-axis 400 passes through the other side of the third hinge plate 333. This is the structure of the hinge assembly of the existing four-axis invisible hinge. It should be noted that the first hinge plate 111 and the second hinge plate 222 have through slots for the c-axis 300 and the d-axis 400 to pass through. The c-axis 300 and the d-axis 400 pass through the through slots and rotate in the slots through their middle parts. The two ends of the c-axis 300 and the d-axis 400 rotate in the two first through holes 312 and the second through holes 313.

[0028] In this embodiment, both the door leaf hinge 1 and the door frame hinge 2 are made of aluminum alloy.

[0029] Both openings 32 are provided with plastic plugs 4. Furthermore, the side of the plastic plug 4 facing the opening 32 has a groove 41. When the C-shaft 300 and D-shaft 400 are too long, a portion will protrude from the first through hole 312 / second through hole 313 after assembly. While ensuring the plastic plug 4 can close the opening 31, the groove 41 provides more space for the protruding portion. Alternatively, the plastic plug 4 can have a third through hole 42 corresponding to the C-shaft 300 and D-shaft 400, allowing the C-shaft 300 / D-shaft 400 to extend out, ensuring both the plastic plug 4 can close the opening 31 and facilitates installation.

[0030] In this embodiment, a fastener 43 is provided on the edge of the side of the plastic plug 4 facing the cut 31, and a fastening groove 310 for fastening the opening 32 is provided on the end face of the fastener 43. The plastic plug 4 is fastened to the cut 31, which facilitates installation.

[0031] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. A four-axis concealed hinge, comprising a door leaf hinge and a door frame hinge, wherein the door frame hinge and the door leaf hinge are connected by a hinge assembly, and the door frame hinge has a recessed receiving box for accommodating the hinge assembly, characterized in that: The hinge assembly includes a C-axis and a D-axis. The receiving box has cuts at both ends and an opening on the side near the hinge assembly. The receiving box has mounting blocks between the opening and the cuts. Both mounting blocks have a first through hole for mounting the C-axis and a second through hole for mounting the D-axis.

2. The four-axis invisible hinge according to claim 1, characterized in that: The hinge assembly includes a pivot a, a pivot b, a first hinge plate, a second hinge plate, and a third hinge plate. The first hinge plate is mounted on the door leaf. One side of the second and third hinge plates is connected to the first hinge plate via pivot a and pivot b, respectively. Pivot c passes through the other side of the second hinge plate, and pivot d passes through the other side of the third hinge plate.

3. A four-axis invisible hinge according to claim 1, characterized in that: Both the door leaf hinges and the door frame hinges are made of aluminum alloy.

4. A four-axis invisible hinge according to claim 1, characterized in that: Both cuts are sealed with plastic.

5. A four-axis invisible hinge according to claim 4, characterized in that: The plastic sealant has a groove on the side facing the cut.

6. A four-axis invisible hinge according to claim 4, characterized in that: The plastic plug has a third through hole corresponding to the c-axis and d-axis.

7. A four-axis invisible hinge according to claim 4, characterized in that: A fastener is provided on the edge of the side of the plastic seal facing the cut, and the end face of the cut is provided with a fastening groove for engaging with the fastener.

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