Three-dimensional adjustable invisible hinge

The integrated design of the three-dimensional adjustable invisible hinge solves the problems of complexity and insufficient adjustment of traditional hinge structures, achieving the effects of simplified production, reduced costs, and precise adjustment.

CN223805972UActive Publication Date: 2026-01-16ZHONGSHAN PINRONG HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202520287166.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-22
Publication Date
2026-01-16
Estimated Expiration
2035-02-22

AI Technical Summary

Technical Problem

Traditional hinges are complex in design, with multiple parts resulting in long assembly time, large errors, material waste and high costs. They also lack three-dimensional adjustment functions, which cannot meet the fine adjustment needs of different doors and windows.

Method used

The integrated three-dimensional adjustable invisible hinge achieves three-dimensional adjustment through the adjustment groove and upper and lower adjustment block connecting arm structure inside the hinge box, combined with multi-directional adjustment screws, reducing the number of parts and assembly steps, and improving production efficiency and adjustment accuracy.

Benefits of technology

The simplified hinge structure reduces production costs and assembly time, enables precise multi-directional adjustment, ensures uniformity and stability of door gaps, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223805972U_ABST
Patent Text Reader

Abstract

The utility model discloses a three-dimensional adjustable invisible hinge which comprises a hinge box body, an adjusting groove is formed in the hinge box body, an upper adjusting block and a lower adjusting block are symmetrically installed on the two sides in the adjusting groove, a connecting arm is arranged between the upper adjusting block and the lower adjusting block, and a connecting shaft rod is connected between the connecting arm and the upper adjusting block and the lower adjusting block. And the front part of the connecting arm is connected with a connecting arm panel, so that the hinge is assembled. According to the three-dimensional adjustable invisible hinge, the structural complexity is reduced, meanwhile, the number of parts and the material cost in the production process are reduced, errors are reduced, the assembling time is shortened, the production efficiency is improved, adjustment can be conducted according to using requirements, and using is more stable.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to hinge technical field, concretely relates to a three -dimensional adjustable invisible hinge. BACKGROUND

[0002] In modern architecture and home design, doors and windows as one of the basic components, its quality and appearance play an important role in the overall space comfort and aesthetics. Hinge as the key connecting components of door and window opening, directly affect the use performance and stability of door and window. However, the existing hinge technology has some defects in the design and manufacturing process.

[0003] Traditional hinge design usually relies on the combination of multiple components, which not only increases the complexity of design and manufacturing, but also increases the error in the assembly process. Multiple adjustment components of the hinge need to be precisely matched to ensure that the hinge can meet different use requirements. However, this multi-component combination design often leads to a longer assembly time, and due to the different matching accuracy of each component, it is easy to have uneven door gaps, loose door body and other problems.

[0004] Traditional hinge design requires a large number of parts, especially complex adjustment structure, which directly leads to material waste and high manufacturing cost in the production process. Precise machining and assembly of multiple parts not only increase the production difficulty, but also require more manual intervention, further increasing the production cost.

[0005] Although the traditional hinge considers the adjustment function in the design, it is often limited to adjustment in one direction, such as up and down adjustment or front and back adjustment. Such hinges lacking three-dimensional adjustment function may not meet the fine adjustment needs of different doors and windows in the application process, resulting in uneven gaps or loose doors after installation.

[0006] In view of this, overcoming the defects of the prior art is a problem to be solved in this technical field. CONTENT OF THE UTILITY MODEL

[0007] In view of the technical problems mentioned in the background art, the purpose of the utility model is to provide a three-dimensional adjustable invisible hinge that reduces structural complexity, reduces the number of parts and material cost in the production process, reduces errors and assembly time, improves production efficiency, and can be adjusted according to use needs, so as to solve the technical problems mentioned in the above background art.

[0008] To achieve the above object, the utility model provides technical scheme: a three -dimensional adjustable invisible hinge, it includes hinge box body, the inside recessed groove of hinge box body, the inside two sides of adjusting groove are installed with up and down adjusting block symmetry, be equipped with connecting arm between up and down adjusting block, connecting arm is connected with connecting axle between up and down adjusting block, the front of connecting arm is connected with connecting arm panel, to assemble into hinge.

[0009] Further, the surface of the connecting arm is symmetrically provided with left and right adjusting holes, the surface of the connecting arm panel is symmetrically provided with fixing holes, the left and right adjusting holes and the fixing holes are correspondingly arranged, and left and right adjusting screws are connected in the left and right adjusting holes and the fixing holes, so that the connecting arm panel can be adjustably connected to the front of the connecting arm.

[0010] Further, the left and right adjusting holes are elliptical, and the fixing holes are circular.

[0011] Further, the inside two sides of the adjusting groove are symmetrically provided with positioning protrusions, the lower surfaces of the up and down adjusting blocks are recessed with positioning grooves, the size of the positioning grooves is greater than the size of the positioning protrusions, the positioning protrusions are positioned and embedded in the positioning grooves, the up and down adjusting holes are formed above the positioning grooves, the connecting holes are formed in the surfaces of the positioning protrusions, the up and down adjusting holes and the connecting holes are correspondingly arranged, and up and down adjusting screws are connected in the up and down adjusting holes and the connecting holes, so that the up and down adjusting blocks can be adjustably connected in the adjusting groove.

[0012] Further, the up and down adjusting holes are elliptical, and the connecting holes are circular.

[0013] Further, the front surfaces of the up and down adjusting blocks are provided with front and rear adjusting holes, front and rear adjusting screws are connected in the front and rear adjusting holes, and the front and rear adjusting screws are abutted and fixed through the front and rear adjusting holes and the adjusting groove.

[0014] Further, the lower side of the connecting arm is provided with a first movable hole, the front side of the up and down adjusting block is provided with a second movable hole, the first movable hole and the second movable hole are oppositely arranged, and the connecting shaft rod is connected by sequentially passing through the second movable hole and the first movable hole, so that the connecting arm can be movably connected between the up and down adjusting blocks.

[0015] Further, the outer two sides of the connecting shaft rod are symmetrically provided with buffer rubber pads, and the buffer rubber pads are arranged between the connecting arm and the up and down adjusting blocks.

[0016] Further, adjusting washers are arranged between the up and down adjusting blocks and the adjusting groove.

[0017] Furthermore, the connecting arm has an adjusting slider protruding from the front middle part, and an adjusting groove is formed in the middle of the surface of the connecting arm panel. The size of the adjusting groove is larger than the size of the adjusting slider, and the adjusting slider is disposed in the adjusting groove.

[0018] The present invention has the following advantages: the hinge box body has an adjustment groove recessed inside, and upper and lower adjustment blocks are adjustablely installed on both sides of the adjustment groove. A connecting arm is provided between the two upper and lower adjustment blocks, and a connecting shaft is connected between the connecting arm and the two upper and lower adjustment blocks, so that the connecting arm and the two upper and lower adjustment blocks are movably connected. A connecting arm panel is adjustablely connected to the front of the connecting arm. The three-dimensional adjustable invisible hinge of the present invention reduces the structural complexity, and at the same time reduces the number of parts and material costs in the production process, reduces errors and assembly time, improves production efficiency, and can be adjusted according to the needs of use, making it more stable in use. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] Fig. 2 This is a schematic diagram of the internal three-dimensional structure of this utility model.

[0021] Fig. 3 This is an exploded structural diagram of the present invention.

[0022] Fig. 4 This is a schematic diagram of the connecting arm structure of this utility model.

[0023] Reference numerals: Hinge box body 10; Adjustment groove 11; Up and down adjustment block 20; Connecting arm 30; Connecting shaft 40; Connecting arm panel 50; Left and right adjustment hole 31; Fixing through hole 51; Left and right adjustment screw 60; Positioning protrusion 111; Positioning groove 21; Up and down adjustment hole 211; Connecting through hole 112; Up and down adjustment screw 70; Front and rear adjustment hole 22; Front and rear adjustment screw 80; First movable through hole 32; Second movable through hole 23; Buffer pad 41; Adjusting shim 12; Adjusting slider 33; Adjusting slide 52; Box body decorative panel 13; Panel decorative panel 53. Detailed Implementation

[0024] like Figs. 1 to 4As shown, a three-dimensional adjustable invisible hinge includes a hinge box body 10, the inside of which is recessed with a rectangular adjustment slot 11, the inside of which is symmetrically installed with upper and lower adjustment blocks 20, between which a connecting arm 30 is provided, which is connected with the two upper and lower adjustment blocks 20, and a connecting shaft 40 is connected between the connecting arm 30 and the two upper and lower adjustment blocks 20, so that the connecting arm 30 and the two upper and lower adjustment blocks 20 are movably connected, and the connecting arm 30 is connected with a connecting arm panel 50, thereby assembling the hinge, in use, the traditional hinge design usually uses 6 main parts, while this integrated design optimizes these parts to 5 main parts, through merging and simplifying, reducing the structural complexity, while also reducing the number of parts and material cost in the production process. Change from double connecting arm to integrated adjustment of the connecting arm 30, this change simplifies the adjustment structure of the connecting arm 30, avoids the coordination problem that may occur in the traditional double connecting arm adjustment system, and reduces the assembly steps. By reducing the movable parts in the hinge and improving the adjustable range, the complexity of disassembly and assembly is reduced, the error and assembly time are reduced, and the production efficiency is improved.

[0025] In specific implementation, the surface of the connecting arm 30 is symmetrically provided with an oval left and right adjustment hole 31, the surface of the connecting arm panel 50 is symmetrically provided with a circular fixed hole 51, the left and right adjustment hole 31 and the fixed hole 51 are correspondingly arranged, and the left and right adjustment screw 60 is connected in the left and right adjustment hole 31 and the fixed hole 51, so that the connecting arm panel 50 can be connected to the front of the connecting arm 30 in left and right adjustment, when the door gap needs to be adjusted, by unscrewing the left and right adjustment screw 60, the left and right adjustment screw 60 can slide along the oval left and right adjustment hole 31, at this time, the connecting arm panel 50 can be finely adjusted in the left and right direction. Through this adjustment mode, the left or right movement of the door leaf can be realized, and the gap between the door and the door frame can be accurately adjusted, thereby effectively solving the problem of uneven door gap caused by inaccurate hinge position.

[0026] In specific implementation, the inner two sides of the adjusting groove 11 are symmetrically provided with positioning protrusions 111, the lower surfaces of the upper and lower adjusting blocks 20 are each concavely provided with a positioning recess 21, the size of the positioning recess 21 is greater than the size of the positioning protrusion 111, the positioning protrusion 111 is positioned and embedded in the positioning recess 21, an oval upper and lower adjusting hole 211 is formed above the positioning recess 21, a circular connecting through hole 112 is formed on the surface of the positioning protrusion 111, the upper and lower adjusting hole 211 and the connecting through hole 112 are correspondingly arranged, the upper and lower adjusting hole 211 and the connecting through hole 112 are connected with an upper and lower adjusting screw 70, so that the upper and lower adjusting block 20 can be adjustably connected in the adjusting groove 11, when the upper and lower gap between the door and the frame needs to be adjusted, the upper and lower adjusting screw 70 can be loosened by screwing, so that the upper and lower adjusting screw 70 slides in the oval upper and lower adjusting hole 211 in the upper and lower directions, at this time, the upper and lower adjusting block 20 slides along the adjusting groove 11 with the screw sliding, so as to realize the adjustment of the upper and lower gap between the door leaf and the door frame. The oval upper and lower adjusting hole 211 enables the upper and lower adjusting screw 70 to slide in a small range, so that the upper and lower position of the door can be accurately adjusted, the door gap is ensured to be uniform, and the problem of uneven door body is avoided. And the cooperation between the positioning protrusion 111 and the positioning recess 21 ensures the stability of the upper and lower adjusting block 20, in the adjustment process, the positioning protrusion 111 is embedded in the positioning recess 21, this cooperation effectively prevents the lateral sliding or shaking of the upper and lower adjusting block 20, so that the upper and lower adjustment is more stable, unnecessary deviation or error in the adjustment process is avoided, and the hinge can still provide accurate adjustment effect even in long-term use, without affecting the use experience of the door due to loosening or deviation.

[0027] In specific implementation, the front surfaces of the upper and lower adjusting blocks 20 are each provided with a front and rear adjusting hole 22, a front and rear adjusting screw 80 is connected in the front and rear adjusting hole 22, the front and rear adjusting screw 80 is abutted and fixed between the front and rear adjusting hole 22 and the adjusting groove 11, when front and rear adjustment is performed, the upper and lower adjusting screw 70 needs to be loosened first, the purpose of this step is to release the upper and lower adjusting block 20, so that it is no longer limited by the fixed upper and lower adjustment, so as to be able to adjust in the front and rear directions. Then, the front and rear adjusting screw 80 is loosened, so that the upper and lower adjusting block 20 can slide along the adjusting groove 11 in the front and rear directions. At this time, through the front and rear fine adjustment of the adjustment, the front and rear gap between the door and the door frame can be accurately adjusted, and the appearance of the door body after closing is ensured to be flat.

[0028] In the embodiment, the lower side of the connecting arm 30 is provided with a first movable perforation 32, the front side of each of the upper and lower adjusting blocks 20 is provided with a second movable perforation 23, the first movable perforation 32 is oppositely arranged with the second movable perforations 23, and the connecting shaft 40 is sequentially connected through the second movable perforations 23 and the first movable perforation 32, so that the connecting arm 30 is movably connected between the upper and lower adjusting blocks 20, and the outer sides of the connecting shaft 40 are symmetrically provided with buffer rubber pads 41, which are arranged between the connecting arm 30 and the upper and lower adjusting blocks 20, and the buffer rubber pads 41 can absorb and reduce the vibration and impact force generated in the adjusting process, so that the noise of the hinge can be effectively reduced and the abrasion can be reduced.

[0029] In the embodiment, the upper and lower adjusting blocks 20 and the adjusting groove 11 are provided with an adjusting gasket 12, which can fill the small gap between the adjusting groove 11 and the upper and lower adjusting blocks 20 in use, so as to reduce unnecessary gap fluctuations, so that the upper and lower adjusting blocks 20 can slide more stably and accurately in the adjusting process.

[0030] In the embodiment, the front middle part of the connecting arm 30 is provided with an adjusting sliding block 33, and the surface of the connecting arm panel 50 is provided with an adjusting sliding groove 52, the size of the adjusting sliding groove 52 is greater than the size of the adjusting sliding block 33, and the adjusting sliding block 33 is arranged in the adjusting sliding groove 52, so that the adjusting sliding groove 52 can move along the adjusting sliding block 33 when the connecting arm panel 50 is adjusted leftward and rightward, and the adjustment is more stable.

[0031] In the embodiment, the surface of the hinge box body 10 is provided with a box body decorative plate 13, and the surface of the connecting arm panel 50 is provided with a panel decorative plate 53, so that the box body decorative plate 13 and the panel decorative plate 53 can effectively hide the hardware part of the hinge structure, the appearance of the hinge is more delicate, and the exposed metal or plastic surface can avoid affecting the overall visual effect.

[0032] In summary, the inside of the hinge box body 10 is concavely provided with an adjusting groove 11, the inner sides of the adjusting groove 11 are adjustably provided with upper and lower adjusting blocks 20, the connecting arm 30 is arranged between the upper and lower adjusting blocks 20, the connecting shaft 40 is connected between the connecting arm 30 and the upper and lower adjusting blocks 20, so that the connecting arm 30 is movably connected between the upper and lower adjusting blocks 20, and the front part of the connecting arm 30 is adjustably connected with the connecting arm panel 50, the three-dimensional adjustable invisible hinge can reduce the structural complexity, reduce the number of parts and material cost in the production process, reduce the error and assembly time, improve the production efficiency, and can be adjusted according to the use requirement, so that the use is more stable.

Claims

1. A three-dimensional adjustable invisible hinge, characterized in that, It includes hinge box body (10), the inside of hinge box body (10) is recessed with adjusting groove (11), the inside of adjusting groove (11) is symmetrically installed with up and down adjusting block (20), the up and down adjusting block (20) between being equipped with connecting arm (30), the connecting arm (30) is connected with the up and down adjusting block (20) between connecting shaft rod (40), the front of connecting arm (30) is connected with connecting arm panel (50), thereby assembling into hinge.

2. The three-dimensional adjustable invisible hinge according to claim 1, wherein, The surface of connecting arm (30) is symmetrically provided with left and right adjusting holes (31), the surface of connecting arm panel (50) is symmetrically provided with fixed perforation (51), the left and right adjusting holes (31) and the fixed perforation (51) are correspondingly provided between them, the left and right adjusting screws (60) are connected in the left and right adjusting holes (31) and the fixed perforation (51), so that the connecting arm panel (50) can be adjustably connected in the front of the connecting arm (30).

3. The three-dimensional adjustable invisible hinge according to claim 2, wherein, The left and right adjusting holes (31) are oval, and the fixed perforation (51) is circular.

4. The three-dimensional adjustable invisible hinge according to claim 1 or 2, characterized in that, The inner two sides of the adjusting groove (11) are symmetrically provided with positioning lugs (111), the lower surfaces of the up and down adjusting blocks (20) are recessed with positioning grooves (21), the size of the positioning grooves (21) is greater than the size of the positioning lugs (111), the positioning lugs (111) are positioned and embedded in the positioning grooves (21), the up and down adjusting holes (211) are provided above the positioning grooves (21), the connecting perforations (112) are provided on the surfaces of the positioning lugs (111), the up and down adjusting holes (211) and the connecting perforations (112) are correspondingly provided between them, the up and down adjusting screws (70) are connected in the up and down adjusting holes (211) and the connecting perforations (112), so that the up and down adjusting blocks (20) can be adjustably connected in the adjusting groove (11).

5. The three-dimensional adjustable invisible hinge according to claim 4, wherein, The up and down adjusting holes (211) are oval, and the connecting perforations (112) are circular.

6. The three-dimensional adjustable invisible hinge according to claim 4, wherein, The front surfaces of the up and down adjusting blocks (20) are provided with front and rear adjusting holes (22), the front and rear adjusting screws (80) are connected in the front and rear adjusting holes (22), and the front and rear adjusting screws (80) are connected and fixed between the front and rear adjusting holes (22) and the adjusting groove (11).

7. The three-dimensional adjustable invisible hinge according to claim 1, wherein, The lower sides of the connecting arms (30) are provided with first movable perforations (32), the front sides of the up and down adjusting blocks (20) are provided with second movable perforations (23), the first movable perforations (32) and the second movable perforations (23) are oppositely provided between them, and the connecting shaft rod (40) is connected by sequentially penetrating the second movable perforations (23) and the first movable perforations (32), so that the connecting arms (30) can be movably connected between the up and down adjusting blocks (20).

8. The three-dimensional adjustable invisible hinge according to claim 7, wherein, The outer two sides of the connecting shaft rod (40) are symmetrically provided with buffer rubber pads (41), and the buffer rubber pads (41) are arranged between the connecting arms (30) and the up and down adjusting blocks (20).

9. The three-dimensional adjustable invisible hinge according to claim 4, wherein, Adjusting washers (12) are arranged between the up and down adjusting blocks (20) and the adjusting groove (11).

10. The three-dimensional adjustable invisible hinge according to claim 2, wherein, The front middle part of the connecting arm (30) is provided with an adjusting sliding block (33), and the surface middle part of the connecting arm panel (50) is provided with an adjusting sliding groove (52), the size of the adjusting sliding groove (52) is greater than the size of the adjusting sliding block (33), and the adjusting sliding block (33) is arranged in the adjusting sliding groove (52).