Hidden hinge

Abstract

The utility model relates to the technical field of hinges, in particular to a hidden hinge which comprises a containing box installed in a door leaf, an installation piece installed on a door frame, a functional shaft installed in the containing box and used for controlling the door leaf to be closed and closed, a connecting block arranged between the installation piece and the containing box and used for transmitting torque, and a hinge portion arranged on the functional shaft in a protruding mode. One side of the connecting block is hinged to the hinge portion, the other side of the connecting block is hinged to the installation piece, the installation piece is further hinged to the containing box, and the door leaf has the advantages that the thickness of the reserved edge is increased, and the strength of the door leaf is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a hidden hinge. Background Art

[0002] The installation of door leaves requires the use of hinges, and invisible hinges are used for aesthetic purposes. The utility model patent with patent number CN220504810U discloses an invisible hinge with convenient speed regulation, including an installation box installed in a door frame and a receiving box installed in a door leaf, a functional shaft for controlling the closing of the door leaf is installed in the receiving box, a connecting component for transmitting torque is provided between the installation box and the receiving box, the connecting component includes a support arm, a connecting arm, and a swing arm, the swing arm includes a swing arm shaft connected to the installation box, and swing arms arranged at both ends of the swing arm shaft, the connecting arm includes a first support block hinged to two swing arms at the same time, a first connecting shaft connected to the receiving box, a second support block is provided on the first connecting shaft, and the second support block is connected to the first support block through a first connecting section, the support arm includes a second connecting shaft connected to the installation box, both ends of the second connecting shaft are provided with a first support arm, a second support arm hinged to the hinged portion, and a second connecting section connecting the first support arm and the second support arm, and the first connecting section is hinged to the two second connecting sections at the same time.

[0003] When installing the above-mentioned invisible hinge, the accommodating box needs to be embedded in the door leaf. The thickness of the door leaf between the side wall of the accommodating box and the outer peripheral surface of the door leaf is called the margin. The components of the connecting assembly and the hinged structure between the components enable the hinge to be opened to 180°. For this reason, the thickness of the margin needs to be made thinner to adapt to the hinge, resulting in a reduction in the strength of the door leaf. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a hidden hinge to increase the thickness of the edge and ensure the strength of the door leaf in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hidden hinge, comprising a accommodating box installed in a door leaf and a mounting member installed on a door frame, a functional axis for controlling the closing of the door leaf being installed in the accommodating box, a connecting block for transmitting torque being provided between the mounting member and the accommodating box, a hinge portion protruding from the surface of the functional axis, one side of the connecting block being hinged to the hinge portion and the other side being hinged to the mounting member, and the mounting member being further hinged to the accommodating box.

[0006] The utility model with the above-mentioned characteristics: only uses connecting blocks to transmit torque, reduces the number of hinged parts, simplifies the hinge structure, reduces production costs, and improves assembly efficiency; when the hinge with the above-mentioned structure is opened, the running trajectory of the accommodating box is less than 180°, so when the hinge with the connecting assembly is installed, there is no need to reduce the thickness of the margin, thereby ensuring the strength of the door leaf, and it is also suitable for door leaves with smaller margin thickness, and has a wide range of applications.

[0007] A further arrangement of the utility model is: the mounting member comprises a mounting panel mounted on the door frame, the mounting panel is provided with a first swing arm and a second swing arm distributed along its length direction, the first swing arm and the second swing arm are both V-shaped, one side of which is integrally formed with the mounting panel, and the other side is suspended and hinged to the accommodating box, and the connecting block is located between the first swing arm and the second swing arm and is hinged thereto.

[0008] The utility model with the above characteristics: by providing a mounting panel, the mounting piece can be directly mounted on the door frame, eliminating the mounting box structure, and can be mounted without cutting a groove on the door frame.

[0009] The utility model is further configured as follows: the accommodating box comprises an accommodating shell and a first mounting block and a second mounting block embedded at two ends of the accommodating shell, a connecting rod connecting the first mounting block and the second mounting block is provided between the first mounting block and the second mounting block, the functional shaft is installed between the first mounting block and the second mounting block, one end of the functional shaft is provided with a speed regulating member for regulating the flow speed of the hydraulic oil in the functional shaft, one end of the speed regulating member extends into the first mounting block, and a passive gear is sleeved on its end portion, a mounting hole for installing the passive gear is provided in the first mounting block, a gear groove connected to the mounting hole is provided in the first mounting block, a first driving gear meshing with the passive gear and a second driving gear meshing with the first driving gear are provided in the gear groove, and an outer peripheral wall of the second driving gear is located outside the gear groove.

[0010] The utility model with the above characteristics: a passive gear capable of driving the speed regulating member to rotate is arranged at the end of the speed regulating member, and a first active gear meshing with the passive gear and a second active gear meshing with the first active gear are arranged at the same time. The speed regulating member can be rotated by operating the second active gear, which is convenient and practical. By arranging two active gears and the outer peripheral wall of the second active gear being located outside the gear groove, it is convenient for the operator to operate directly without the aid of tools, and is easy to adjust.

[0011] A further configuration of the utility model is that at least one waist-shaped hole is provided at the upper and lower ends of the installation panel, and the axis of the waist-shaped hole is arranged along the length direction of the installation panel.

[0012] The utility model with the above characteristics: the relative position of the mounting piece on the door frame is adjusted by setting a waist-shaped hole, and the moving direction of the mounting piece is the axial direction of the waist-shaped hole. When the position of the mounting piece needs to be adjusted, there is no need to re-drill a hole in the door frame, and the installation position of the mounting piece can be fine-tuned.

[0013] A further configuration of the utility model is that: a connecting groove for accommodating the hinged part is provided on the connecting block, and the hinged part is hingedly connected to the connecting block after extending into the connecting groove.

[0014] The utility model with the above characteristics: by setting a connecting groove to connect with the hinge part, the contact area of ​​the hinge part is increased, the hinge part on the functional shaft can be prevented from breaking during use, the connection stability between the functional shaft and the connecting block is improved, and the service life of the hinge is extended.

[0015] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the utility model without the accommodating box.

[0018] Figure 3 This is an exploded view of the embodiment of the utility model after the accommodation box is removed.

[0019] Figure 4 It is an exploded view of the accommodation box according to an embodiment of the utility model.

[0020] Figure 5 This is a cross-sectional view of an embodiment of the utility model without the accommodating box. DETAILED DESCRIPTION

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] like Figure 1-5The hidden hinge shown in the figure comprises a mounting member 1 mounted on a door frame, a receiving box 2 mounted in a door leaf, a functional shaft 3 for controlling the closing of the door leaf is mounted in the receiving box 2, a connecting block 4 for transmitting torque is arranged between the mounting member 1 and the receiving box 2, a hinge portion protruding from the surface of the functional shaft 3 is arranged on the connecting block 4, one side of the connecting block 4 is hinged to the hinge portion, and the other side is hinged to the mounting member 1, a connecting groove 41 for accommodating the hinge portion is arranged on the connecting block 4, the hinge portion is extended into the connecting groove 41 and is hinged to the connecting block 4, the mounting member 1 is also hinged to the receiving box 2, the mounting member 1 comprises a mounting panel 11 mounted on the door frame, and the mounting panel 11 is provided with a hinge portion along its length direction The first swing arm 12 and the second swing arm 13 are distributed, and the first swing arm 12 and the second swing arm 13 are both V-shaped, one side of which is integrally formed with the installation panel 11, and the other side is suspended and hinged with the accommodating box 2, and the connecting block 4 is located between the first swing arm 12 and the second swing arm 13 and is hinged thereto. When the door leaf is opened, the connecting block rotates with the first swing arm and the second swing arm of the mounting member as the fulcrum, and the accommodating box also rotates with the first swing arm and the second swing arm of the mounting member as the fulcrum. The rotation of the connecting block causes the functional shaft to store energy, and the release of energy of the functional shaft causes the connecting block to reset, thereby driving the connecting block to reset and prompting the door leaf to close.

[0023] At least one waist-shaped hole 111 is provided at the upper and lower ends of the mounting panel 11, and the axis of the waist-shaped hole 111 is arranged along the length direction of the mounting panel 11. During installation, the mounting panel is fixedly connected to the door frame, and the axis of the waist-shaped hole is arranged vertically, so that the mounting part can be adjusted up and down without drilling additional holes in the door frame.

[0024] The accommodating box 2 includes an accommodating shell 21 and a first mounting block 22 and a second mounting block 23 embedded at both ends of the accommodating shell 21. A connecting rod 24 is provided between the first mounting block 22 and the second mounting block 23 to connect the two. The functional shaft 3 is installed between the first mounting block 22 and the second mounting block 23. A speed regulating member 32 for adjusting the flow speed of the hydraulic oil in the functional shaft 3 is provided at one end of the functional shaft 3. One end of the speed regulating member 32 extends into the first mounting block 22, and a passive gear 9 is sleeved at its end. A mounting hole 221 for installing the passive gear 9 is provided in the first mounting block 22, and a gear groove 222 communicating with the mounting hole 221 is provided in the first mounting block 22. The gear groove 222 is provided with a gear connected to the passive gear 9. The meshing first driving gear 10 and the second driving gear 14 meshing with the first driving gear 10, the outer peripheral wall of the second driving gear 14 is located outside the gear groove 222, and the first gear shaft 15 and the second gear shaft 16 are vertically arranged in the gear groove 222. The first driving gear 10 is sleeved on the first gear shaft 15, and the second driving gear 14 is sleeved on the second gear shaft 16. When the door closing speed needs to be adjusted, the second driving gear is rotated, the second driving gear drives the first driving gear to rotate, the first driving gear drives the passive gear to rotate, and the speed regulating member sleeved with the passive gear rotates, thereby realizing the speed regulation of the functional shaft, and the outer peripheral wall of the second driving gear is located outside the gear groove, which is convenient for the operator to turn it by hand.

Claims

1. A hidden hinge, comprising a housing box installed in a door leaf and a mounting member installed on a door frame, wherein a functional axis for controlling the closing of the door leaf is installed in the housing box, characterized in that: A connecting block for transmitting torque is provided between the mounting member and the accommodating box, a hinge portion protruding from the surface of the functional shaft is provided, one side of the connecting block is hinged to the hinge portion, and the other side is hinged to the mounting member, and the mounting member is also hinged to the accommodating box.

2. A hidden hinge according to claim 1, characterized in that: The mounting member includes a mounting panel mounted on the door frame, and the mounting panel is provided with a first swing arm and a second swing arm distributed along its length direction, the first swing arm and the second swing arm are both V-shaped, one side of which is integrally formed with the mounting panel, and the other side is suspended and hinged to the accommodating box, and the connecting block is located between the first swing arm and the second swing arm and is hinged thereto.

3. A hidden hinge according to claim 1 or 2, characterized in that: The accommodating box comprises an accommodating shell and a first mounting block and a second mounting block embedded in both ends of the accommodating shell, a connecting rod connecting the first mounting block and the second mounting block is provided between the first mounting block and the second mounting block, the functional shaft is installed between the first mounting block and the second mounting block, one end of the functional shaft is provided with a speed regulating member for regulating the flow speed of the hydraulic oil in the functional shaft, one end of the speed regulating member extends into the first mounting block, and a passive gear is sleeved on its end, a mounting hole for installing the passive gear is provided in the first mounting block, a gear groove connected with the mounting hole is provided in the first mounting block, a first driving gear meshing with the passive gear and a second driving gear meshing with the first driving gear are provided in the gear groove, and the outer peripheral wall of the second driving gear is located outside the gear groove.

4. A hidden hinge according to claim 2, characterized in that: At least one waist-shaped hole is arranged at the upper and lower ends of the installation panel, and the axis of the waist-shaped hole is arranged along the length direction of the installation panel.

5. A hidden hinge according to claim 1 or 2, characterized in that: The connecting block is provided with a connecting groove for accommodating the hinged part, and the hinged part is hingedly connected to the connecting block after extending into the connecting groove.

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