CN110984744A - Novel hidden hinge - Google Patents

Novel hidden hinge Download PDF

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Publication number
CN110984744A
CN110984744A CN202010007464.0A CN202010007464A CN110984744A CN 110984744 A CN110984744 A CN 110984744A CN 202010007464 A CN202010007464 A CN 202010007464A CN 110984744 A CN110984744 A CN 110984744A
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CN
China
Prior art keywords
arm
hinge
window
door
hinged
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Granted
Application number
CN202010007464.0A
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Chinese (zh)
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CN110984744B (en
Inventor
廖冠荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Leliu Huiqiang Metal Product Co ltd
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Foshan Shunde Leliu Huiqiang Metal Product Co ltd
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Priority to CN202010007464.0A priority Critical patent/CN110984744B/en
Publication of CN110984744A publication Critical patent/CN110984744A/en
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00Hinges or pivots of special construction
    • E05D7/08Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00Hinges with pins
    • E05D3/06Hinges with pins with two or more pins
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/132Doors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/148Windows

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)

Abstract

The invention relates to a novel hidden hinge which comprises a door frame connecting arm and a hinge arm assembly, wherein the door frame connecting arm and a window connecting arm are hinged between the door frame connecting arm and the window connecting arm; the tail end of the third hinge arm is hinged with the middle part of the connecting arm of the window and the door; the center pin of window and door linking arm length direction is a, and the tail end of third hinge arm is b with the hinge center of window and door linking arm, and the relative a of b lies in the relative door frame linking arm of window and door linking arm one side of opening, the hinge is closed the back, distance K has between a and the b. After the hinge is closed, the third hinge arm and the window and door connecting arm form a certain included angle, and when the hinge is opened again, the third hinge arm can directly push the window and door connecting arm out in a rotating and pushing mode relative to the door frame connecting arm in a rotating and pushing mode.

Description

Novel hidden hinge
Technical Field
The invention relates to a novel hidden hinge.
Background
The hinge is widely applied to various doors and windows as an opening and closing component, for example, chinese patent document No. CN201510897609.8 discloses a hinge structure and a window body provided with the hinge structure, the hinge structure includes: the sliding rail is provided with a sliding groove; the connecting rod assembly is arranged on the sliding rail; the bracket arm is rotatably connected to the sliding rail through the connecting rod assembly; the limiting component can slide along the sliding groove and clamp one end of the connecting rod assembly to the sliding rail, and the limiting component can be used for adjustably connecting the sliding rail and the connecting rod assembly so as to adjust the clamping force applied to the connecting rod assembly and change the sliding friction force between the connecting rod assembly and the sliding rail. Also, a hinge, as disclosed in chinese patent document No. CN201680041479.0, is used for a window having a sash hinged on a fixed frame; in particular, the hinge is of the hidden type, i.e. it is mounted in the jamb of the fixed frame, so that it is not visible when the sash is closed.
As shown in fig. 1-2, in the conventional door/window structure, a door edge with a certain thickness and length is disposed around a door 1000, and the door edge is connected to a door frame 2000 through a sealing ring in a sealing manner.
The market has gradually risen, the back is closed jointly with the door frame to the window, window 3000's door can be along the flat frame door and window of partial door frame 4000 parallel and level, as shown in fig. 3, this kind of flat frame door and window, it is equipped with a recess 4001 to correspond the door edge of window 3000 at door frame 4000, the back is closed jointly with the door frame, window 3000's door can be covered in recess 4001 along the part, make window 3000's door can be along the partial door frame 4000 parallel and level along the part, its advantage is that it is whole more pleasing to the eye after door and window is closed, it is loved by the consumer deeply.
When the door and window structure adopts a conventional hinge, the door and window 3000 is easy to collide with the door frame 4000 or the groove 4001 when opening the door, as shown in fig. 4, because the conventional hinge is opened, especially in the initial section opening process of the hinge, the door and window connecting arm can rotate and open relative to the door frame connecting arm by taking the head end of the door and window connecting arm as the rotation center, at this moment, the door and window 3000 can also rotate and open along the door edge of the door and window 3000, the door edge of the door and window will approach to the groove 4001 or even collide with the groove 4001 due to direct rotation and opening, until the hinge is continuously opened, the door and window connecting arm can rotate and push out relative to the door frame connecting arm in a manner of being pushed out by rotation (simultaneously pushing out by rotation), and at this moment, the door edge of the door.
To overcome this problem, it is now conventional to make the aperture of the recess 4001 larger or deeper to prevent the window 3000 from directly colliding with the door frame 4000 or the recess 4001 when the door is opened. However, this will cause the gap between the groove 4001 and the door edge of the window 3000 to increase after the window 3000 and the door frame 4000 are closed together, which may also affect the appearance or the sealing performance of the window.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned shortcomings of the prior art, and provides a novel hidden hinge, wherein when the hinge is opened, the connecting arm of the window and door can be directly pushed out in a rotating manner relative to the connecting arm of the door frame.
The purpose of the invention is realized as follows:
a novel hidden hinge comprises a door frame connecting arm and a window door connecting arm which are hinged to each other through a hinge arm assembly, wherein the door frame connecting arm and the window door connecting arm are connected in an opening and closing mode through the hinge arm assembly, and the hinge arm assembly comprises a first hinge arm, a second hinge arm and a third hinge arm; the middle part of the first hinged arm is hinged with the middle part of the second hinged arm in a crossed mode through a fulcrum, the head end of the first hinged arm is hinged with the head end of the door frame connecting arm, the tail end of the first hinged arm is hinged with the head end of the third hinged arm, the head end of the second hinged arm is connected with a sliding groove arranged on the tail end of the door frame connecting arm in a sliding mode, the tail end of the second hinged arm is hinged with the head end of the window and door connecting arm, and the tail end of the third hinged arm is hinged with the middle part of the; the center pin of window and door linking arm length direction is a, and the tail end of third hinge arm is b with the hinge center of window and door linking arm, and the relative a of b lies in the relative door frame linking arm of window and door linking arm one side of opening, the hinge is closed the back, the distance K that has between a and the b.
The distance K is greater than 0 mm.
The tail end of the third hinge arm is hinged to the middle of the window and door connecting arm through an eccentric nail, the eccentric nail comprises a main body, an eccentric shaft fixedly connected with the middle of the window and door connecting arm is arranged on one side of the main body, and a rotating shaft hinged to the tail end of the third hinge arm is arranged on the other side of the main body.
And a distance L is reserved between the axis c of the eccentric shaft and the axis of the rotating shaft.
The middle part of the window and door connecting arm is provided with a connecting hole, the eccentric shaft penetrates into the connecting hole for fixation, the tail end of the third hinge arm is provided with a hinge hole, and the rotating shaft penetrates into the hinge hole for hinge.
The circle center of the hinge hole is located on a central shaft of the third hinge arm in the length direction.
The eccentric shaft is of a flat shaft structure.
And the first hinge arm or the second hinge arm is provided with a stop pin for preventing the third hinge arm from excessively accommodating when the hinge is closed.
The invention has the beneficial effects that:
according to the invention, the hinge center of the mutual hinge of the third hinge arm and the window and door connecting arm deviates from the central axis in the length direction of the window and door connecting arm, so that after the hinge is closed, the third hinge arm and the window and door connecting arm form a certain included angle, and when the hinge is reopened, the third hinge arm can directly push the window and door connecting arm out in a rotating and pushing manner relative to the door frame connecting arm.
When the hinge is used for a flat-frame door and window, and the window is opened, the window can be rotated and pushed out relative to the door frame connecting arm in a rotating and pushing-out mode along with the window connecting arm, and the window is opened relative to the door frame. When the window door is opened, the window door is pushed out by rotation, so that the door edge of the window door is in a distance H with the groove of the door frame, the collision between the door edge of the window door and the groove of the door frame is effectively avoided, the caliber of the groove can be smaller or shallower, and the appearance of the flat-frame door window is more attractive.
The hinge can also be applied to doors and windows with common structures.
Drawings
Fig. 1 is a schematic view illustrating an assembly structure of a conventional hinge and a conventional door and window.
Fig. 2 is a schematic structural view of the opened state of fig. 1.
Fig. 3 is a schematic view showing an assembly structure of a conventional hinge and a flat-framed door and window.
Fig. 4 is a schematic structural view of the opened state of fig. 3.
Fig. 5 is a plan view of the first embodiment hinge of the present invention in a closed state.
FIG. 6 is a sectional view of the first embodiment of the present invention showing the closed state of the hinge and the flat-frame door/window.
Fig. 7 is a top view of the first embodiment of the hinge of the present invention in an open position.
Fig. 8 is a schematic structural view of the hinge and flat-frame door/window in an open state according to the first embodiment of the present invention 1.
FIG. 9 is a schematic view of the hinge and flat-frame door/window in an open state according to the first embodiment of the present invention 2.
FIG. 10 is a perspective view of the second embodiment of the hinge of the present invention in an open position.
Fig. 11 is an exploded view of fig. 10.
Fig. 12 is a perspective view of an eccentric nail according to a first embodiment of the present invention.
Fig. 13 is a cross-sectional view of fig. 12.
Detailed Description
The invention is further described with reference to the following figures and examples.
First embodiment
Referring to fig. 5-13, the novel hidden hinge comprises a door frame connecting arm 1 and a window connecting arm 2 hinged to a hinge arm assembly between the door frame connecting arm 1 and the window connecting arm 2, wherein the door frame connecting arm 1 and the window connecting arm 2 are connected through the hinge arm assembly in an opening and closing manner, when the hinge is closed, the hinge arm assembly is stored, and when the hinge is opened, the hinge arm assembly is opened.
The hinged arm assembly comprises a first hinged arm 3, a second hinged arm 4 and a third hinged arm 5; the middle part of the first hinged arm 3 is hinged with the middle part of the second hinged arm 4 in a crossed manner through a fulcrum 8, the head end of the first hinged arm 3 is hinged with the head end of the door frame connecting arm 1, the tail end of the first hinged arm 3 is hinged with the head end of the third hinged arm 5, the head end of the second hinged arm 4 is connected with a sliding groove 11 arranged on the tail end of the door frame connecting arm 1 in a sliding manner (the sliding groove 11 is used for accommodating and opening a hinged arm assembly, and can be understood by technicians in the field), the tail end of the second hinged arm 4 is hinged with the head end of the window and door connecting arm 2, and the tail end of the third hinged arm 5; 2 length direction's of window and door linking arm center pin is an, and the tail end of third hinge arm 5 is b with the hinge center of window and door linking arm 2, and the relative a of b lies in the one side that 2 relative door frame linking arms 1 of window and door linking arm opened, the hinge is closed the back, the distance K that has between an and the b, the distance K is greater than 0 mm. Because the installation groove distance of traditional hinge size, installation door frame linking arm 1 on the window and door, window and door linking arm 2 has all become the standard, can be preferred distance K is more than 5mm, this modified technical scheme makes the mutual articulated center of third hinge arm 5 and window and door linking arm 2 and the central axis of window and door linking arm 2 length direction form the skew, aforementioned distance K promptly.
The hinge center of the third hinge arm 5 and the window and door connecting arm 2 which are mutually hinged deviates from the central axis of the window and door connecting arm 2 in the length direction, different from the traditional hinge, the third hinge arm 5 and the window and door connecting arm 2 can form a significant included angle after the hinge is closed (the hinge center of the hinge arm corresponding to the traditional hinge and the window and door connecting arm are almost coincident with the central axis of the window and door connecting arm in the length direction, therefore, the hinge arm corresponding to the traditional hinge and the window and door connecting arm can not form a significant included angle after the hinge is closed), when the hinge is opened again, the third hinge arm 5 can directly rotate and push out the window and door connecting arm 2 relative to the door frame connecting arm 1 in a rotating and pushing-out mode when opened, that is, when the door/window connecting arm 2 is opened, it is subject to the opening action of the hinge arm assembly, and especially when the third hinge arm 5 is opened, the door/window connecting arm 2 can be rotated and pushed out simultaneously.
When the hinge is applied to a flat-frame door and window, and the window 100 is opened (as shown in fig. 8 and 9), the window 100 can be rotated and pushed out relative to the doorframe connecting arm 1 in a manner of rotating and pushing out along with the window connecting arm 2, and then opened relative to the doorframe 200. That is, when the window and door 100 is opened, the window and door 100 is rotated and pushed out to be opened, so that the door edge of the window and door 100 actively forms a distance H with the groove 201 of the door frame 200, thereby effectively preventing the door edge of the window and door 100 from colliding with the groove 201, making the aperture of the groove 201 smaller or shallower, and making the appearance of the flat frame door and window more beautiful. The hinge can also be applied to doors and windows with common structures, and has wider application range.
In addition, when the hinge is closed, the third hinge arm 5 and the window and door connecting arm 2 form an obvious included angle, so that the third hinge arm 5 partially protrudes out of the hinge, but the protruding part is smaller, and the gap position reserved when the hinge and the window and door 100 are installed is just utilized, as shown in fig. 6, so that the normal installation and use of the hinge and the window and door 100 are not influenced, and the existing door and window structure is not required to be changed.
Further, the tail end of the third hinge arm 5 is hinged to the middle of the window and door connecting arm 2 through an eccentric nail 6, the eccentric nail 6 comprises a main body 60, one side of the main body 60 is provided with an eccentric shaft 61 fixedly connected with the middle of the window and door connecting arm 2 through welding, riveting and other existing processes, and the other side of the main body is provided with a rotating shaft 62 hinged to the tail end of the third hinge arm 5. This technical scheme increases the third hinge arm 5 and the center pin skew distance of the hinge center of hinging each other with window and door connecting arm 2 through eccentric nail 6 change looks and 2 length direction, can avoid destroying the outer edge structure of window and door connecting arm 2 because set up aforementioned distance K, keeps the whole mechanical strength of window and door connecting arm 2.
Further, a distance L (i.e. the aforementioned offset distance) is provided between the axis c of the eccentric shaft 61 and the axis (i.e. the hinge center b) of the rotating shaft 62, that is, the axis c of the eccentric shaft 61 has a certain distance with the length direction of the window and door connecting arm 2, and the distance L may preferably be greater than 1.5mm, and the window and door connecting arm 2 may be provided with two left and right connecting holes 21 fixedly connected with the axis c of the eccentric shaft 61, as shown in fig. 11, so as to adapt to the assembly and use of the upper and lower hinges, which can be understood by those skilled in the art.
Further, the middle part of the window and door connecting arm 2 is provided with a connecting hole 21, an eccentric shaft 61 penetrates into the connecting hole 21 to be fixed, the head end and the tail end of the third hinge arm 5 are respectively provided with a hinge hole 51, the hinge hole 51 at the head end is hinged with the tail end of the first hinge arm 3, and a rotating shaft 62 penetrates into the hinge hole 51 at the tail end to be hinged. The circle center of the hinge hole 51 is located on the central shaft of the third hinge arm 5 in the length direction, so that production and processing are facilitated, fool-proof assembly is realized, and the assembly pin quantity is increased.
Further, the eccentric shaft 61 is of a flat shaft structure, so that the eccentric shaft 61 is prevented from rotating with the window and door connecting arm 2, and fool-proof assembly can be realized.
Further, the first hinge arm 3 or the second hinge arm 4 is provided with a stop pin 7 for preventing the third hinge arm 5 from being excessively accommodated when the hinge is closed, and when the hinge is closed, in order to prevent the hinge from being excessively closed (i.e. preventing the third hinge arm 5 from being excessively accommodated), therefore, the stop pin 7 can be provided on the first hinge arm 3 or the second hinge arm 4, when the hinge is closed, the third hinge arm 5 will abut against the stop pin 7, so as to ensure that the third hinge arm 5 and the door/window connecting arm 2 can form a significant included angle, and the stop pin 7 is provided on the second hinge arm 4 in this embodiment.
The above examples are only preferred embodiments of the present invention, and other embodiments of the present invention are possible. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.

Claims (8)

1. A novel hidden hinge comprises a door frame connecting arm (1) and a window door connecting arm (2) which are hinged between the door frame connecting arm and the window door connecting arm, wherein the door frame connecting arm (1) and the window door connecting arm (2) are connected in an opening and closing mode through a hinge arm assembly, and the novel hidden hinge is characterized in that the hinge arm assembly comprises a first hinge arm (3), a second hinge arm (4) and a third hinge arm (5); the first hinged arm (3) is hinged with the second hinged arm (4) in a crossed mode through a fulcrum (8), the head end of the first hinged arm (3) is hinged with the door frame connecting arm (1), the tail end of the first hinged arm is hinged with the head end of the third hinged arm (5), the head end of the second hinged arm (4) is connected with a sliding groove (11) arranged on the door frame connecting arm (1) in a sliding mode, the tail end of the second hinged arm is hinged with the window and door connecting arm (2), and the tail end of the third hinged arm (5) is hinged with the middle of the window and door connecting arm (2); the center pin of window and door linking arm (2) length direction is a, and the tail end of third hinge arm (5) is b with the hinge center of window and door linking arm (2), and the relative a of b lies in the one side that window and door linking arm (2) opened relative door frame linking arm (1), the hinge is closed the back, distance K has between an and the b.
2. The new hidden hinge according to claim 1, characterized in that: the distance K is greater than 0 mm.
3. The new hidden hinge according to claim 1, characterized in that: the tail end of the third hinge arm (5) is hinged to the middle of the window and door connecting arm (2) through an eccentric nail (6), the eccentric nail (6) comprises a main body (60), one side of the main body (60) is provided with an eccentric shaft (61) fixedly connected with the middle of the window and door connecting arm (2), and the other side of the main body is provided with a rotating shaft (62) hinged to the tail end of the third hinge arm (5).
4. The new hidden hinge according to claim 3, characterized in that: the axial center c of the eccentric shaft (61) and the axial center of the rotating shaft (62) have a distance L.
5. The new hidden hinge according to claim 3, characterized in that: the middle part of the window and door connecting arm (2) is provided with a connecting hole (21), an eccentric shaft (61) penetrates into the connecting hole (21) for fixation, the tail end of the third hinge arm (5) is provided with a hinge hole (51), and a rotating shaft (62) penetrates into the hinge hole (51) for hinging.
6. The new hidden hinge according to claim 5, characterized in that: the circle center of the hinge hole (51) is positioned on the central shaft of the third hinge arm (5) in the length direction.
7. The new hidden hinge according to claim 3, characterized in that: the eccentric shaft (61) is of a flat shaft structure.
8. The new hidden hinge according to any one of claims 1 to 7, characterized in that: and a stop pin (7) for preventing the third hinge arm (5) from being excessively accommodated when the hinge is closed is arranged on the first hinge arm (3) or the second hinge arm (4).
CN202010007464.0A 2020-01-04 2020-01-04 Concealed hinge Active CN110984744B (en)

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CN202010007464.0A CN110984744B (en) 2020-01-04 2020-01-04 Concealed hinge

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CN110984744B CN110984744B (en) 2024-04-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113116239A (en) * 2021-03-25 2021-07-16 上海高仙自动化科技发展有限公司 Cleaning vehicle body shell structure and cleaning robot

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE780927A (en) * 1971-03-20 1972-07-17 Bilstein August COMPASS DEVICE FOR TILTING-SWIVEL LEAF OF WINDOWS, DOORS, ETC ....
EP1918498A1 (en) * 2006-10-31 2008-05-07 van Parys, Remi Emiel Hidden hinge
CN106968539A (en) * 2016-01-07 2017-07-21 伊曼纽尔.范帕里斯 For turn-tilt window concealed hinge and be equipped with its window
CN207714960U (en) * 2016-07-05 2018-08-10 时代家庭安全有限公司 Slide support hinge component and window assembly for window
CN208220458U (en) * 2018-04-24 2018-12-11 佛山市固宇建朗建筑五金有限公司 A kind of novel invisible metal hinge
CN109113473A (en) * 2018-09-30 2019-01-01 广东坚祥建筑五金有限公司 A kind of adjustable hinges of door and window of opening angle
CN208996587U (en) * 2018-07-23 2019-06-18 佛山市颢进科技有限公司 A kind of window hinge arrangement of pick-proof
CN209585981U (en) * 2018-11-21 2019-11-05 广东坚朗五金制品股份有限公司 Hinge for window
CN211549272U (en) * 2020-01-04 2020-09-22 佛山市顺德区勒流镇汇强金属制品有限公司 Novel hidden hinge

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE780927A (en) * 1971-03-20 1972-07-17 Bilstein August COMPASS DEVICE FOR TILTING-SWIVEL LEAF OF WINDOWS, DOORS, ETC ....
EP1918498A1 (en) * 2006-10-31 2008-05-07 van Parys, Remi Emiel Hidden hinge
CN106968539A (en) * 2016-01-07 2017-07-21 伊曼纽尔.范帕里斯 For turn-tilt window concealed hinge and be equipped with its window
CN207714960U (en) * 2016-07-05 2018-08-10 时代家庭安全有限公司 Slide support hinge component and window assembly for window
CN208220458U (en) * 2018-04-24 2018-12-11 佛山市固宇建朗建筑五金有限公司 A kind of novel invisible metal hinge
CN208996587U (en) * 2018-07-23 2019-06-18 佛山市颢进科技有限公司 A kind of window hinge arrangement of pick-proof
CN109113473A (en) * 2018-09-30 2019-01-01 广东坚祥建筑五金有限公司 A kind of adjustable hinges of door and window of opening angle
CN209585981U (en) * 2018-11-21 2019-11-05 广东坚朗五金制品股份有限公司 Hinge for window
CN211549272U (en) * 2020-01-04 2020-09-22 佛山市顺德区勒流镇汇强金属制品有限公司 Novel hidden hinge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113116239A (en) * 2021-03-25 2021-07-16 上海高仙自动化科技发展有限公司 Cleaning vehicle body shell structure and cleaning robot

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