Hidden hinge

Abstract

The utility model relates to the technical field of hinges, in particular to a hidden hinge which comprises a mounting box, a containing box, a functional shaft and a connecting assembly, the connecting assembly comprises a mounting piece, a connecting block, a first connecting arm and a second connecting arm, a hinge portion is arranged on the functional shaft, one end of the connecting block is hinged to the hinge portion, and the other end of the connecting block is hinged to the containing box. The first connecting arm comprises a first connecting shaft and two first swing supporting arms arranged on one side of the first connecting shaft, the second connecting arm comprises a second connecting shaft and two second swing supporting arms arranged on one side of the second connecting shaft, the other end of the connecting block is hinged to the two second swing supporting arms at the same time, and the mounting piece is mounted in the mounting box. 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 concealed hinge. Background Art

[0002] The installation of door leaves requires the use of hinges, and invisible hinges are used for aesthetic purposes. Patent number CN220036422U is an invisible hinge, which includes an installation box, a receiving box, a functional shaft, a support arm, a connecting arm, and a swing arm. The functional shaft is installed in the receiving box, and a hinge portion protruding from the surface thereof is provided thereon. 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, and both ends of the second connecting shaft are provided with a first support arm, a second support arm hinged to the hinge 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 concealed 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 objectives, the utility model provides the following technical solutions: a concealed hinge, comprising an installation box installed in a door frame and a containing box installed in a door leaf, a functional axis for controlling the closing of the door leaf being installed in the containing box, a connecting component for transmitting torque being provided between the installation box and the containing box, characterized in that: the connecting component comprises a mounting member, a connecting block, a first connecting arm, and a second connecting arm, the functional axis being provided with a hinged portion protruding from its surface, one end of the connecting block being hinged to the hinged portion, the first connecting arm comprising a first connecting axis hinged to the containing box and two first swing arms arranged on one side of the first connecting axis, the second connecting arm comprising a second connecting axis hinged to the containing box and two second swing arms arranged on one side of the second connecting axis, the other end of the connecting block being hinged to the two second swing arms at the same time, the mounting member being installed in the installation box, and provided with a supporting arm hinged to the first swing arm and the second swing arm respectively.

[0006] The utility model with the above-mentioned characteristics: a connecting assembly composed of the mounting part, connecting block, first connecting arm and second connecting arm of the above-mentioned hinged structure is adopted. When the door leaf is opened, the running track of the connecting assembly is less than 180°. Therefore, when installing the hinge with the connecting assembly, there is no need to reduce the thickness of the margin, thereby ensuring the strength of the door leaf. At the same time, 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 includes a mounting panel installed in a mounting box, the support arm includes a support block integrally formed with the mounting panel, one side of the support block is provided with two support swing arms respectively arranged at both ends thereof, the two support swing arms are respectively arranged on both sides of two second swing arms, the connecting block is located between the two second swing arms, and the connecting block is not hinged to the support swing arm.

[0008] The utility model with the above-mentioned characteristics: such structural design optimizes the transmission efficiency of the torque, makes the door leaf more stable when closing or opening, and reduces sudden impact or jamming.

[0009] 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.

[0010] The utility model with the above-mentioned 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 component is improved, and the service life of the hinge is extended.

[0011] A further configuration of the utility model is that a avoidance groove is provided between the upper end of the first swing support arm and the first connecting shaft, and the supporting swing arm is located in the avoidance groove.

[0012] The utility model with the above-mentioned features: the setting of the avoidance groove enables the supporting swing arm to be placed in the first swing support arm, thereby increasing the overall aesthetics of the hinge.

[0013] A further configuration of the utility model is: the accommodating box includes an accommodating shell and a first support block and a second support block embedded at both ends of the accommodating shell, a connecting rod connecting the first support block and the second support block is provided between the first support block and the second support block, the functional shaft is installed between the first support block and the second support 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 support block, and a passive gear is sleeved on its end, a mounting hole for mounting the passive gear is provided in the first support block, a gear groove connected to the mounting hole is provided in the first support 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.

[0014] 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.

[0015] A further arrangement of the utility model is that: an installation groove for placing an installation panel is provided in the installation box, a first waist-shaped hole and a second waist-shaped hole are respectively provided at the upper and lower ends of the bottom of the installation groove, a third waist-shaped hole adapted to the first waist-shaped hole and a fourth waist-shaped hole adapted to the second waist-shaped hole are correspondingly provided at the upper and lower ends of the installation panel, the axis of the first waist-shaped hole is perpendicular to the axis of the third waist-shaped hole in space, the axis of the second waist-shaped hole is perpendicular to the axis of the fourth waist-shaped hole in space, and the first waist-shaped hole and the second waist-shaped hole are respectively provided on both sides of the length direction of the bottom of the installation groove.

[0016] The utility model with the above-mentioned characteristics: the relative position of the mounting piece in the mounting box is adjusted by setting four waist-shaped holes, and the moving direction of the mounting piece is the axial direction of the first waist-shaped hole and the third waist-shaped hole, that is, the mounting piece can move up, down, left and right on the horizontal plane. The position of the mounting piece can be adjusted without removing the mounting box from the door frame, which is convenient for the installation of the hinge.

[0017] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model after removing the accommodating box and the installation box Figure 1 .

[0020] Figure 3 This is a schematic diagram of the structure of the embodiment of the utility model after removing the accommodating box and the installation box Figure 2 .

[0021] Figure 4 It is an exploded view of the connection assembly of the embodiment of the utility model.

[0022] Figure 5 It is a schematic structural diagram of the installation box according to an embodiment of the utility model.

[0023] Figure 6 It is an exploded view of the accommodation box according to an embodiment of the utility model.

[0024] Figure 7 This is a cross-sectional view of the container box of the utility model embodiment after removing the container shell. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1-7 The hidden hinge shown in the figure comprises an installation box 1 installed in the door frame, a receiving box 2 installed in the door leaf, a functional shaft 3 for controlling the closing of the door leaf is installed in the receiving box 2, a connecting component for transmitting torque is provided between the installation box 1 and the receiving box 2, the connecting component comprises a mounting member 4, a connecting block 5, a first connecting arm 6, and a second connecting arm 7, a hinge portion 31 protruding from the surface of the functional shaft 3 is provided, one end of the connecting block 5 is hinged to the hinge portion 31, a connecting groove 51 for accommodating the hinge portion 31 is provided on the connecting block 5, the hinge portion 31 is hinged to the connecting block 5 after extending into the connecting groove 51, the first connecting arm 6 comprises a first connecting shaft 61 hinged to the receiving box 2 and two first swinging arms 62 arranged on one side of the first connecting shaft 61, the second connecting arm 7 comprises a second connecting shaft 71 hinged to the receiving box 2 and two first swinging arms 62 arranged on the second connecting shaft 71 Two second swing arms 72 on one side of the connecting shaft 71, and the other end of the connecting block 5 is hinged to the two second swing arms 72 at the same time. The mounting member 4 includes a mounting panel 41 and a support arm installed in the mounting box 1. The support arm includes a support block 42 integrally formed with the mounting panel. One side of the support block 42 is provided with two support swing arms 43 arranged at both ends. The two support swing arms 43 are respectively hinged to the two first swing arms 62. The two second swing arms 72 are respectively hinged to the two support swing arms 43 and the connecting block 5. The two support swing arms 43 are arranged on both sides of the two second swing arms 72. The connecting block 5 is located between the two second swing arms 72. The connecting block 5 is not hinged to the support swing arm 43. An avoidance groove 63 is provided between the upper end of the first swing arm 62 and the first connecting shaft 61, and the support swing arm 43 is located in the avoidance groove 63.

[0027] When the door leaf is opened, the first connecting arm and the second connecting arm both rotate with the supporting swing arm as the fulcrum. The rotation of the first connecting arm and the second connecting arm simultaneously drives the accommodating box to rotate, and the rotation of the second connecting arm drives the connecting block to rotate. 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 assembly to reset and causing the door leaf to close.

[0028] A mounting groove 11 is provided in the mounting box 1 for placing the mounting panel 41, and a first waist-shaped hole 12 and a second waist-shaped hole 13 are respectively provided at the upper and lower ends of the bottom of the mounting groove 11, and a third waist-shaped hole 411 adapted to the first waist-shaped hole 12 and a fourth waist-shaped hole 412 adapted to the second waist-shaped hole 13 are correspondingly provided at the upper and lower ends of the mounting panel 41, the axis of the first waist-shaped hole 12 is perpendicular to the axis of the third waist-shaped hole 411 in space, and the axis of the second waist-shaped hole 13 is perpendicular to the axis of the fourth waist-shaped hole 412 in space, and the first waist-shaped hole 12 and the second waist-shaped hole 13 are respectively arranged on both sides of the length direction of the bottom of the mounting groove 11. During installation, the mounting box is fixedly connected to the door frame. If the axes of the first waist-shaped hole and the second waist-shaped hole arranged on the mounting box are arranged horizontally, the left and right positions of the mounting parts in the mounting box can be adjusted. Correspondingly, if the axes of the third waist-shaped hole and the fourth waist-shaped hole arranged on the mounting panel are arranged vertically, the upper and lower positions of the mounting parts in the mounting box can be adjusted, thereby realizing fine adjustment of the mounting parts.

[0029] 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 concealed hinge, comprising an installation box installed in a door frame, a receiving box installed in a door leaf, a functional shaft for controlling the closing of the door leaf installed in the receiving box, a connecting component for transmitting torque is provided between the installation box and the receiving box, characterized in that: The connecting assembly includes a mounting piece, a connecting block, a first connecting arm, and a second connecting arm. The functional shaft is provided with a hinge portion protruding from its surface, one end of the connecting block is hinged to the hinge portion, the first connecting arm includes a first connecting shaft hinged to the accommodating box and two first swing arms arranged on one side of the first connecting shaft, the second connecting arm includes a second connecting shaft hinged to the accommodating box and two second swing arms arranged on one side of the second connecting shaft, the other end of the connecting block is hinged to the two second swing arms at the same time, the mounting piece is installed in the mounting box, and is provided with support arms hinged to the first swing arm and the second swing arm respectively.

2. A concealed hinge according to claim 1, characterized in that: The mounting member includes a mounting panel installed in a mounting box, the support arm includes a support block integrally formed with the mounting panel, one side of the support block is provided with two support swing arms respectively arranged at both ends thereof, the two support swing arms are respectively arranged on both sides of two second swing arms, the connecting block is located between the two second swing arms, and the connecting block is not hinged to the support swing arm.

3. A concealed 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 with the connecting block after extending into the connecting groove.

4. The concealed hinge according to claim 2, characterized in that: An avoidance groove is provided between the upper end of the first swing arm and the first connecting shaft, and the supporting swing arm is located in the avoidance groove.

5. A concealed hinge according to claim 1 or 2, characterized in that: The accommodating box includes an accommodating shell and a first support block and a second support block embedded at both ends of the accommodating shell, a connecting rod connecting the first support block and the second support block is provided between the first support block and the second support block, the functional shaft is installed between the first support block and the second support 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 support block, and a passive gear is sleeved on its end, a mounting hole for mounting the passive gear is provided in the first support block, a gear groove connected to the mounting hole is provided in the first support 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.

6. The concealed hinge according to claim 4, characterized in that: The accommodating box includes an accommodating shell and a first support block and a second support block embedded at both ends of the accommodating shell, a connecting rod connecting the first support block and the second support block is provided between the first support block and the second support block, the functional shaft is installed between the first support block and the second support 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 support block, and a passive gear is sleeved on its end, a mounting hole for mounting the passive gear is provided in the first support block, a gear groove connected to the mounting hole is provided in the first support 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.

7. A concealed hinge according to claim 1, 2 or 6, characterized in that: The installation box is provided with an installation groove for placing the installation panel, and the upper and lower ends of the bottom of the installation groove are respectively provided with a first waist-shaped hole and a second waist-shaped hole, and the upper and lower ends of the installation panel are correspondingly provided with a third waist-shaped hole adapted to the first waist-shaped hole and a fourth waist-shaped hole adapted to the second waist-shaped hole, the axis of the first waist-shaped hole is perpendicular to the axis of the third waist-shaped hole in space, the axis of the second waist-shaped hole is perpendicular to the axis of the fourth waist-shaped hole in space, and the first waist-shaped hole and the second waist-shaped hole are respectively arranged on both sides of the length direction of the bottom of the installation groove.

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