Invisible hinge

Abstract

The utility model relates to an invisible hinge which comprises a mounting box, a containing box, a main shaft, a supporting arm and a connecting arm. The main shaft is provided with a hinge part, the connecting arm is hinged to the containing box and the mounting box through the first supporting block and the second supporting block, and the supporting arm is connected with the connecting arm through the first supporting arm and the second supporting arm. An inclined sliding groove is formed in the mounting box, the second supporting arm is in sliding fit with the inclined sliding groove through a sliding hinge shaft, space adjustment is achieved, and abrasion is reduced. The main shaft is in linkage with an electric driving mechanism which comprises a motor and a transmission assembly, power is transmitted through a main transmission wheel, an auxiliary transmission wheel and a driven wheel, and automatic opening and closing, speed adjustment and remote control of the hinge are achieved. By optimizing the structural design, the adaptability and stability of the hinge are improved, the service life of the hinge is prolonged, and the hinge is suitable for door leaves made of different materials and complex working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hidden hinge. BACKGROUND

[0002] The hidden hinge is a kind of hardware fittings widely used in various doors and windows, and its main function is to realize the opening and closing of doors and windows, and due to its hidden design, it can improve the appearance of doors and windows to a certain extent. The traditional hidden hinge mostly adopts manual operation mode, and realizes the opening and closing action by manually pushing or pulling the door and window.

[0003] The Chinese utility model patent file with publication number "CN220036422U" discloses a hidden hinge, which is mainly composed of a mounting box, a containing box, a main shaft, a supporting arm, a connecting arm and a swing arm.

[0004] The hidden hinge has the following technical problems:

[0005] Firstly, in the actual installation process, different materials of door leaves (such as wood and aluminum profiles) have different requirements for the distance between the door leaf and the frame during installation. Due to the material characteristics (such as easy deformation due to moisture, high expansion coefficient, etc.), wood door leaves usually need a larger distance to avoid extrusion deformation or complete opening during use. In this way, extrusion deformation or complete opening will not occur during opening. However, the distance between the mounting box and the containing box of the hidden hinge is small in the fully open state, which cannot adapt to the door leaf with larger distance requirement, and the door leaf will interfere with the frame in the fully open state, resulting in complete opening or extrusion deformation.

[0006] Secondly, the hidden hinge must be manually operated, and the opening and closing action is realized by manually pushing or pulling the door and window, and it cannot realize intelligent functions such as automatic opening and closing, speed regulation, remote control, etc. UTILITY MODEL CONTENTS

[0007] The utility model solves the technical problems in the prior art, and provides a hidden hinge,

[0008] In order to achieve the above object, the utility model provides the following technical scheme: invisible hinge, including installation box, accommodation box, main shaft, support arm, connecting arm, the main shaft is equipped with the hinge part of convex surface setting, the connecting arm includes the first support block of hinge connection with the accommodation box, the second support block of hinge connection with the installation box, the second support block is connected with the first support block through the first connecting section, the support arm includes two groups of first support arms which are symmetrically arranged on the both sides of the first support block and are hingedly connected with the accommodation box, two groups of second support arms which are symmetrically arranged on the both sides of the second support block, each group of first support arm is connected with a group of second support arm through the second connecting section, the first connecting section is hingedly connected with two groups of second connecting sections, characterized by: the installation box corresponds to the both sides of the support arm and is equipped with a group of inclined sliding slots respectively, the end portion of the second support arm away from the second connecting section is slidably connected with the inclined sliding slot.

[0009] The above technical scheme is adopted, the distance between the door leaf and the door frame in the fully open state of the hinge can be flexibly adjusted through the design of the inclined sliding slot, the installation demand of the material with higher distance requirement such as wood door leaf is met, the interference between the door leaf and the frame is avoided, and the invisible hinge can still be applied to the scene with smaller distance requirement. Further, the inclined sliding slot has a guiding effect, and guides the movement of the support arm, so that the movement of the hinge in the opening and closing process is more stable.

[0010] The above-mentioned invisible hinge can be further provided with a sliding hinge shaft on the side of the support arm facing the installation box, the sliding hinge shaft is connected with the two groups of second support arms, and the two ends of the sliding hinge shaft are inserted into the corresponding inclined sliding slots and can slide along the inclined sliding slots.

[0011] The above technical scheme is adopted, the sliding hinge shaft replaces the support arm and the inclined sliding slot in sliding connection, reduces the wear between the support arm and the inclined sliding slot, and protects the support arm. Meanwhile, the position between the sliding hinge shaft and the support arm can be adjusted slightly during assembly, so as to reduce the influence of errors, the sliding hinge shaft can be inserted into the inclined sliding slot better, and the sliding hinge shaft can slide along the inclined sliding slot more smoothly.

[0012] The above-mentioned invisible hinge can be further provided with an electric drive mechanism connected with the main shaft, and the electric drive mechanism is used for driving the main shaft to rotate, so as to realize the opening and closing control of the invisible hinge.

[0013] The above technical scheme is adopted, the electric drive mechanism is arranged, the invisible hinge can realize the automatic opening and closing function, does not need manual operation, and is convenient for remote control. The output rotating speed and torque of the power source can also be controlled, not only the speed adjustment and remote control functions are further realized, but also the adjustment can be made according to different door leaf weights and use scenes, and more complex working conditions can be adapted.

[0014] The invisible hinge can be further provided as: the electric drive mechanism comprises a motor and a transmission assembly connected with the output end of the motor, and the transmission assembly is connected with the main shaft.

[0015] By using the above technical scheme, the hinge can be automatically opened and closed by the motor drive, without manual operation. By adjusting the rotating speed or torque of the motor, the opening speed of the invisible hinge can be changed. In addition to ordinary door leaves, the invisible hinge can also be applied to door leaves that need to be frequently opened and closed or need to be remotely controlled. Meanwhile, the transmission assembly can be selected as a gear transmission mode or a connecting rod transmission mode, as long as the output torque of the motor can be transmitted to the main shaft. The main shaft is used to support and transmit the power of the motor. It should be noted that the main shaft in the present scheme is essentially different from the functional shaft in the prior art. Any component that can achieve the function of torque transmission can be used in the main shaft proposed in the present scheme, and the functional shaft is not excluded.

[0016] The invisible hinge can be further provided as: the transmission assembly comprises a main transmission gear connected with the output end of the motor and a secondary transmission gear connected with the end of the main transmission gear.

[0017] By using the above technical scheme, the secondary transmission gear is connected with the main transmission gear to transmit power to the main shaft, so as to realize the opening and closing action of the invisible hinge.

[0018] The invisible hinge can be further provided as: the transmission assembly further comprises at least one driven gear, the driven gear is arranged between the main transmission gear and the secondary transmission gear, one side of the driven gear is in meshing transmission with the main transmission gear, and the other side of the driven gear is in meshing transmission with the secondary transmission gear.

[0019] By using the above technical scheme, the driven gear can disperse the transmission load, reduce the impact and vibration between the main transmission gear and the secondary transmission gear, and improve the stability of torque transmission between the motor and the main shaft.

[0020] The invisible hinge can be further provided as: the accommodating box comprises a split accommodating seat and an accommodating shell, both ends of the main shaft are rotatably installed on the accommodating seat, the accommodating seat is provided with an installation groove structure for installing the transmission assembly corresponding to the end of the main shaft, and the accommodating shell is provided with an installation cavity for installing the motor corresponding to the side of the main shaft.

[0021] By using the above technical scheme, the accommodating box is designed as a split accommodating seat and an accommodating shell, so as to facilitate the installation and disassembly of the motor and the gear transmission assembly. Meanwhile, the installation position of the accommodating seat relative to the accommodating shell can be adjusted.

[0022] The invisible hinge can be further provided with: the accommodating seat comprises two groups of second side walls arranged at two ends of the main shaft respectively, the two groups of second side walls are respectively provided with a second adjusting plate, the accommodating shell is provided with a groove for placing the second adjusting plate, the second adjusting plate and the groove are respectively provided with a through hole for the adjusting screw to pass through, and the second adjusting plate is in threaded connection with the adjusting screw.

[0023] By adopting the technical scheme, the adjusting screw is in threaded connection with the second adjusting plate, the adjusting screw is inserted into the door leaf after passing through the groove, the adjusting screw is not separated from the door leaf when the adjusting screw is rotated, the second adjusting plate is driven to move along the adjusting screw in the groove, the accommodating seat is driven to move along the adjusting screw in the accommodating shell, and the installation depth of the accommodating seat in the accommodating shell is adjusted.

[0024] The invisible hinge can be further provided with: the mounting box comprises a mounting seat and a mounting shell which are arranged in a split mode, the mounting seat is embedded in the mounting shell, the mounting seat comprises a mounting plate arranged in the mounting shell and first side walls vertically arranged at two ends of the mounting plate, the two first side walls are respectively provided with a first adjusting plate parallel to the mounting plate, the two first adjusting plates are respectively provided with a first waist-shaped hole, the mounting shell is provided with a second waist-shaped hole longitudinally and transversely intersecting with the first waist-shaped hole, and the first waist-shaped hole is provided with a fastener connected with the second waist-shaped hole.

[0025] By adopting the technical scheme, the two waist-shaped holes are arranged on the mounting seat and the mounting shell respectively, the relative position of the mounting seat in the mounting shell is adjusted, the moving direction of the mounting seat is the axial direction of the two waist-shaped holes, the two waist-shaped holes are arranged in different planes and are perpendicular to each other, that is, the mounting seat can move in the up-down and left-right directions in the horizontal plane, the position of the mounting seat can be adjusted without disassembling the mounting shell from the door leaf, and the mounting of the hinge is facilitated.

[0026] The utility model will be further explained in detail in connection with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is an overall structure schematic view of the embodiment of the utility model;

[0028] Figure 2 It is an explosion schematic view of the embodiment of the utility model; Figure One ;

[0029] Figure 3 It is an explosion schematic view of the embodiment of the utility model; Figure Two ;

[0030] Figure 4 It is a transmission assembly schematic view of the embodiment of the utility model.

[0031] Label notes: installation box 1; mounting seat 11, mounting plate 111, first side wall 112, first adjusting plate 113, first waist-shaped hole 114, inclined sliding groove 115; installation shell 12, second waist-shaped hole 122; containing box 2, containing seat 21, installation groove structure 211, second side wall 212, second adjusting plate 213, containing shell 22, installation cavity 221, groove 222; main shaft 31, hinged part 311; support arm 32, first branch 322, second branch 323, second connecting section 324, sliding hinge shaft 325; connecting arm 33, first supporting block 331, second supporting block 333, first connecting section 334; electric drive mechanism 4, motor 41, main transmission wheel 42, auxiliary transmission wheel 43, driven wheel 44. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] As Figures 1 to 4The invisible hinge shown includes a mounting box 1, a containing box 2, a main shaft 31, a support arm 32, and a connecting arm 33. The main shaft 31 is provided with a hinge part 311 protruding from its surface. The connecting arm 33 includes a first supporting block 331 hinged to the containing box 2 and a second supporting block 333 hinged to the mounting box 1. The second supporting block 333 is connected to the first supporting block 331 through a first connecting segment 334. The support arm 32 includes two groups of first supporting arms 322 symmetrically arranged on both sides of the first supporting block 331 and hinged to the containing box 2, and two groups of second supporting arms 323 symmetrically arranged on both sides of the second supporting block 333. Each group of first supporting arms 322 is connected to a group of second supporting arms 323 through a second connecting segment 324. The first connecting segment 334 is hinged to both groups of second connecting segments 324. The mounting box 1 is provided with a group of inclined sliding grooves 115 on both sides corresponding to the support arm 32. The end of the second supporting arm 323 away from the second connecting segment 324 is slidingly matched with the inclined sliding groove 115. The support arm 32 is provided with a sliding hinge shaft 325 on the side facing the mounting box 1. The sliding hinge shaft 325 is connected to both groups of second supporting arms 323. The two ends of the sliding hinge shaft 325 are inserted into the corresponding inclined sliding grooves 115 and can slide along the inclined sliding grooves 115. Through the design of the inclined sliding grooves 115, the distance between the door leaf and the door frame in the fully open state of the hinge can be flexibly adjusted, meeting the installation requirements of materials with higher spacing requirements such as wooden door leaves, avoiding interference between the door leaf and the frame, and still allowing the invisible hinge to be applied to scenes with smaller spacing requirements. Further, the inclined sliding grooves 115 have a guiding effect on the movement of the support arm 32, thereby improving the stability of the hinge during opening and closing.

[0034] The main shaft 31 is connected with an electric drive mechanism 4, a motor 41, a main transmission wheel 42, a secondary transmission wheel 43, and a driven wheel 44. The electric drive mechanism 4 includes the motor 41 and a transmission assembly connected with the output end of the motor 41. The transmission assembly includes the main transmission wheel 42 connected with the output end of the motor 41, the secondary transmission wheel 43 connected with the output end of the main transmission wheel 42, and a group of driven wheels 44 arranged between the main transmission wheel 42 and the secondary transmission wheel 43. One side of the driven wheel 44 is in meshing transmission with the main transmission wheel 42, and the other side of the driven wheel 44 is in meshing transmission with the secondary transmission wheel 43. The electric drive mechanism 4 enables the invisible hinge to realize automatic opening and closing functions without manual operation, facilitating remote control. By controlling the output speed and torque of the power source, not only the functions of speed adjustment and remote control are further realized, but also the hinge can be adjusted according to different door leaf weights and use scenarios to adapt to more complex working conditions.

[0035] The accommodating box 2 comprises an accommodating seat 21 and an accommodating shell 22, both ends of the main shaft 31 are rotatably installed on the accommodating seat 21, the accommodating seat 21 is provided with an installation groove structure 211 for installing a transmission assembly corresponding to the end of the main shaft 31, and the accommodating shell 22 is provided with an installation cavity 221 for installing the motor 41 corresponding to the side of the main shaft 31. The accommodating seat 21 comprises two groups of second side walls 212 arranged at both ends of the main shaft 31 respectively, and the two groups of second side walls 212 are both provided with a second adjusting plate 213, the accommodating shell 22 is provided with a groove 222 for placing the second adjusting plate 213, the second adjusting plate 213 and the groove 222 are both provided with a through hole for passing a adjusting screw, and the second adjusting plate 213 is in threaded connection with the adjusting screw. The adjusting screw is in threaded connection with the second adjusting plate 213, the adjusting screw is inserted into a door leaf after passing through the groove 222, the adjusting screw is not separated from the door leaf when the adjusting screw is rotated, the second adjusting plate 213 is driven to move along the adjusting screw in the groove 222 through the threaded connection, so that the accommodating seat 21 moves along the adjusting screw in the accommodating shell 22, and the installation depth of the accommodating seat 21 in the accommodating shell 22 is adjusted.

[0036] The installation box 1 comprises an installation seat 11 and an installation shell 12, the installation seat 11 is embedded in the installation shell 12, the installation seat 11 comprises an installation plate 111 arranged in the installation shell and first side walls 112 vertically arranged at both ends of the installation plate 111, the two first side walls 112 are both provided with a first adjusting plate 113 parallel to the installation plate 111, the two first adjusting plates 113 are both provided with a first waist-shaped hole 114, and the installation shell 12 is provided with a second waist-shaped hole 122 longitudinally and transversely intersecting with the first waist-shaped hole 114, and a fastener is arranged in the first waist-shaped hole 114 and connected with the second waist-shaped hole 122.

[0037] The two waist-shaped holes are arranged on the installation seat 11 and the installation shell 12 respectively, are used for adjusting the relative position of the installation seat 11 in the installation shell 12, the moving direction of the installation seat 11 is the axis direction of the two waist-shaped holes, and the two waist-shaped holes are arranged in different planes and perpendicular to each other, that is, the installation seat 11 can move in the up-down and left-right directions in a horizontal plane, the position of the installation seat 11 can be adjusted without disassembling the installation shell 12 from the door leaf, and the hinge is convenient to install.

[0038] Compared with the invisible hinge provided by the prior art, the invisible hinge provided by the embodiment has the following two characteristics: firstly, by arranging the inclined sliding groove 115, the distance between the door leaf and the door frame in the fully open state of the hinge can be flexibly adjusted, the installation requirements of materials with high distance requirements such as wood door leaves are met, interference between the door leaf and the frame is avoided, and at the same time, the invisible hinge can still be applied to scenes with smaller distance requirements. Secondly, the motor 41 driving form can realize remote control, automatic opening and closing of the invisible hinge, and adjustment of the rotating speed of the motor 41 according to the working condition to adapt to different working conditions. After the motor 41 is started, the torque is transmitted to the main shaft 31 through the transmission assembly, and the specific action of the structures such as the main shaft 31, the supporting arm 32 and the connecting arm 33 is the common knowledge in the field, so the embodiment will not be described here.

Claims

1. An invisible hinge, comprising a mounting box, a receiving box, a main shaft, a support arm, and a connecting arm, wherein the main shaft is provided with a hinge portion protruding from its surface; the connecting arm includes a first support block hinged to the receiving box and a second support block hinged to the mounting box, the second support block being connected to the first support block via a first connecting section; the support arm includes two sets of first arms symmetrically arranged on both sides of the first support block and hinged to the receiving box, and two sets of second arms symmetrically arranged on both sides of the second support block; each set of first arms is connected to one set of second arms via a second connecting section, the first connecting section being hinged to both sets of second connecting sections simultaneously; characterized in that: The mounting box is provided with a set of inclined sliding grooves on each side corresponding to the support arms.

2. The concealed hinge according to claim 1, characterized in that: The support arms are provided with sliding hinge shafts on the side facing the mounting box, which are connected with the two sets of second support arms and have their two ends inserted into the corresponding inclined sliding grooves and slidable along the inclined sliding grooves.

3. The concealed hinge according to claim 1, characterized in that: The main shaft is connected with an electric driving mechanism, which is used to drive the rotation of the main shaft to control the opening and closing of the invisible hinge.

4. The concealed hinge according to claim 3, characterized in that: The electric driving mechanism comprises a motor and a transmission assembly connected with the output end of the motor, which is connected with the main shaft.

5. The concealed hinge according to claim 4, characterized in that: The transmission assembly comprises a main transmission wheel connected with the output end of the motor and a secondary transmission wheel connected with the output end of the main transmission wheel.

6. The concealed hinge according to claim 5, characterized in that: The transmission assembly further comprises at least one set of driven wheels arranged between the main transmission wheel and the secondary transmission wheel, one side of the driven wheel being engaged with the main transmission wheel and the other side being engaged with the secondary transmission wheel.

7. A concealed hinge according to any one of claims 4 to 6, characterized in that: The accommodating box comprises a split accommodating seat and an accommodating shell, both ends of the main shaft being rotatably installed on the accommodating seat, the accommodating seat being provided with an installation groove structure for installing the transmission assembly corresponding to the end of the main shaft, and the accommodating shell being provided with an installation cavity for installing the motor corresponding to the side of the main shaft.

8. The concealed hinge according to claim 7, characterized in that: The accommodating seat comprises two sets of second side walls arranged at both ends of the main shaft, both sets of second side walls being provided with second adjusting plates, the accommodating shell being provided with grooves for placing the second adjusting plates, the second adjusting plates and the grooves being provided with through holes for the adjusting screws, and the second adjusting plates being threadedly connected with the adjusting screws.

9. The concealed hinge according to any one of claims 1 to 6, characterized in that: The mounting box comprises a split mounting seat and a mounting shell, the mounting seat being embedded in the mounting shell, the mounting seat comprising a mounting plate arranged in the mounting shell and first side walls vertically arranged at both ends of the mounting plate, both first side walls being provided with first adjusting plates parallel to the mounting plate, both first adjusting plates being provided with first waist-shaped holes, the mounting shell being provided with second waist-shaped holes longitudinally and transversely intersecting with the first waist-shaped holes, and the first waist-shaped holes being provided with fasteners connecting the second waist-shaped holes.

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