CN211851369U

CN211851369U - Double-lever three-fulcrum anti-falling hinge

Info

Publication number: CN211851369U
Application number: CN202020398729.XU
Authority: CN
Inventors: 李占敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-03
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a hinge is prevented weighing down by three fulcrums of double lever, include with casement main part fixed connection's bearing support piece and with window frame fixed connection's heterotypic guide rail, be equipped with respectively rather than sliding connection's first slider and second slider on the heterotypic guide rail, it has the one end of first cantilever and second cantilever to articulate respectively on the different positions of bearing support piece, the other end of first cantilever is articulated with one side of first slider, the other end of second cantilever is articulated with the fixed block on the heterotypic guide rail, the opposite side of first slider articulates the one end of third cantilever, the other end of third cantilever is articulated with the main part of second cantilever, it has the one end of fourth cantilever to articulate on the second slider, the other end of fourth cantilever is articulated with the main part of first cantilever, improve the bearing capacity of heterotypic guide rail to the bearing support piece, thereby make the casement main part be difficult to drop, the security of.

Description

Double-lever three-fulcrum anti-falling hinge

Technical Field

The utility model relates to a door and window articulated mounting technical field specifically is a hinge is prevented weighing down by two levers three fulcrums.

Background

In the prior art, the sliding support or the invisible hinge is commonly used in the field of doors and windows, wherein all parts are connected by common rivets, the bottom groove has thick and thin arms, the bearing is small, and the service life is short; the notch of the aluminum alloy window frame needs to be milled with ribs, the processing is complex, the cost is high, and the product structure is slow to install and inconvenient to adjust; the hardware bearing is not enough again when to great window, and easy the flagging of warping leads to the window can't be closed or drop, and there are certain potential safety hazard and limitation in the product of market circulation at present, and invisible hinge window on the market has can't wash outside glass etc. not enough in addition.

Therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a hinge is prevented weighing down by three fulcrums of two levers, aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least.

The purpose of the utility model is realized like this:

the utility model provides a hinge is prevented weighing down by two levers three fulcrums, include with casement main part fixed connection's bearing support piece and with window frame fixed connection's heterotypic guide rail, be equipped with respectively rather than sliding connection's first slider and second slider on the heterotypic guide rail, it has the one end of first cantilever and second cantilever to articulate respectively on the different positions of bearing support piece, the other end of first cantilever is articulated with one side of first slider, the other end of second cantilever is articulated with the fixed block on the heterotypic guide rail, the opposite side of first slider articulates the one end of third cantilever, the other end of third cantilever is articulated with the main part of second cantilever, it has the one end of fourth cantilever to articulate on the second slider, the other end of fourth cantilever is articulated with the main part of first cantilever.

The special-shaped guide rail is provided with a hook-shaped bending groove, and the first sliding block and/or the second sliding block are/is provided with an L-shaped bending part corresponding to the bending groove.

And a plastic nylon sliding block main body is arranged on the first sliding block and/or the second sliding block, and hook-shaped stainless steel blocks corresponding to the plastic nylon sliding block main bodies are respectively embedded into the plastic main bodies of the first sliding block or the second sliding block.

The end part of the special-shaped guide rail is provided with a wrap angle part, and one end of the bearing support sheet close to the window frame is provided with a guide concave part corresponding to the wrap angle part.

One end of the bearing supporting sheet close to the window frame is provided with an assembling portion which is bent upwards, a window sash locking member is arranged on the assembling portion, and the window sash locking member and the assembling portion are locked and fixed through M5 screws.

The bottom of the special-shaped guide rail is provided with a guide rail locking sheet, and the guide rail locking sheet and the special-shaped guide rail are locked and fixed through an M5 screw.

The utility model has the advantages that:

the first, second and third cantilevers are respectively matched with the bearing supporting sheet and the first and second sliding blocks, and three hinged stress pivots are formed on the first and second sliding blocks, so that the stress pivots of the bearing supporting sheet on the special-shaped guide rail are more increased and dispersed, the bearing capacity of the special-shaped guide rail on the bearing supporting sheet is improved, the window sash main body is not easy to drop, and the safety of a product is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of the embodiment of the present invention.

Fig. 3 is an exploded view of the second embodiment of the present invention.

Fig. 4 is a schematic side view of the special-shaped guide rail according to the embodiment of the present invention.

Fig. 5 is a schematic structural view of the first slider and the nylon slider according to the embodiment of the present invention.

Fig. 6 is an enlarged view of embodiment a of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-6, the double-lever three-fulcrum anti-falling hinge comprises a bearing support sheet 2 fixedly connected with a sash main body 1 and a special-shaped guide rail 4 fixedly connected with a window frame 3, wherein the special-shaped guide rail 4 is provided with a first sliding block 51 and a second sliding block 52 respectively connected with the special-shaped guide rail in a sliding manner, different positions of the bearing support sheet 2 are respectively hinged with one ends of a first cantilever 61 and a second cantilever 62, the other end of the first cantilever 61 is hinged with one side of the first sliding block 51, the other end of the second cantilever 62 is hinged with a fixed block 41 on the special-shaped guide rail 4, the other side of the first sliding block 51 is hinged with one end of a third cantilever 63, the other end of the third cantilever 63 is hinged with a main body of the second cantilever 62, the second sliding block 52 is hinged with one end of a fourth cantilever 64, the other end of the fourth cantilever 64 is hinged with a main body of the first cantilever 61, and the first, second, The two sliding blocks are matched, three hinged stress pivots are formed on the first sliding block and the second sliding block, so that the stress pivots of the bearing support sheet 2 on the special-shaped guide rail 4 are more and more dispersed, the bearing capacity of the special-shaped guide rail 4 to the bearing support sheet 2 is improved, the window sash main body 1 is not easy to drop, and the safety of a product is improved.

Furthermore, the hook-shaped bending groove 42 is formed in the special-shaped guide rail 4, the L-shaped bending part 53 corresponding to the bending groove 42 is arranged on the first sliding block 51 and/or the second sliding block 52, the L-shaped bending part 53 is arranged in the hook-shaped bending groove 42, when the first sliding block and the second sliding block are stressed, the bending part 53 can compress the bending groove 42 under the action of the lever stress principle, so that the bearing capacity of the first sliding block and the second sliding block is increased, the sash main body 1 is not easy to drop, and the safety of products is improved.

Furthermore, the plastic nylon slide block 54 is arranged on the first slide block 51 and/or the second slide block 52, and the plastic main bodies of the first slide block 51 or the second slide block 52 are respectively embedded into the corresponding hook-shaped stainless steel block 65, so that the noise generated when the first slide block and the second slide block slide on the special-shaped guide rail 4 is reduced, and the window sash main body 1 is kept silent in the opening and closing process.

Furthermore, the end part of the special-shaped guide rail 4 is provided with a wrap angle part 43, one end of the bearing support sheet 2 close to the window frame 3 is provided with a guide concave part 21 corresponding to the wrap angle part 43, when the window sash main body 1 is closed, the wrap angle part 43 and the guide concave part 21 are abutted against each other, and the sealing performance of the window is improved.

Further, the one end of the nearly window frame 3 of bearing support piece 2 is equipped with the assembly portion 22 of upwards bending, is equipped with casement retaining member 23 on the assembly portion 22, and casement retaining member 23 passes through M5 screw locking with assembly portion 22 and fixes, and the vertical installation limit of casement main part 1 passes the clearance between assembly portion 22 and the casement retaining member 23, has realized the effect that improves the installation effectiveness, can improve the firm performance of product by a wide margin, avoids casement main part 1 to drop, ensures safety.

Furthermore, the bottom of the special-shaped guide rail 4 is provided with a guide rail locking sheet 44, the guide rail locking sheet 44 and the special-shaped guide rail 4 are fixed through M5 screw locking, the connection strength of the special-shaped guide rail 4 and the window frame 3 is improved, the bearing capacity of the window frame is better, and the product is safer and more reliable.

The above embodiments are merely preferred embodiments of the present invention, and other embodiments are also possible. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims

1. A double-lever three-fulcrum anti-falling hinge comprises a bearing supporting sheet (2) fixedly connected with a sash main body (1) and a special-shaped guide rail (4) fixedly connected with a window frame (3), and is characterized in that a first sliding block (51) and a second sliding block (52) which are respectively connected with the special-shaped guide rail in a sliding manner are arranged on the special-shaped guide rail (4), different positions of the bearing supporting sheet (2) are respectively hinged with one ends of a first cantilever (61) and a second cantilever (62), the other end of the first cantilever (61) is hinged with one side of the first sliding block (51), the other end of the second cantilever (62) is hinged with a fixed block (41) on the special-shaped guide rail (4), the other side of the first sliding block (51) is hinged with one end of a third cantilever (63), the other end of the third cantilever (63) is hinged with a main body of the second cantilever (62), and one end of a fourth cantilever (64) is hinged on the second sliding block (52), the other end of the fourth cantilever (64) is hinged with the main body of the first cantilever (61).

2. The dual-lever three-fulcrum fall-preventing hinge of claim 1, wherein: the special-shaped guide rail (4) is provided with a hook-shaped bending groove (42), and the first sliding block (51) and/or the second sliding block (52) are/is provided with an L-shaped bending part (53) corresponding to the bending groove (42).

3. The dual-lever three-fulcrum fall-preventing hinge of claim 1, wherein: and a plastic nylon sliding block main body (54) is arranged on the first sliding block (51) and/or the second sliding block (52), and hook-shaped stainless steel blocks (65) corresponding to the plastic nylon sliding block main bodies are respectively embedded into the plastic main bodies of the first sliding block (51) or the second sliding block (52).

4. The dual-lever three-fulcrum fall-preventing hinge of claim 1, wherein: the end part of the special-shaped guide rail (4) is provided with a wrap angle part (43), and one end of the bearing supporting sheet (2) close to the window frame (3) is provided with a guide concave part (21) corresponding to the wrap angle part (43).

5. The dual-lever three-fulcrum fall-preventing hinge of claim 1, wherein: one end of the bearing supporting sheet (2) close to the window frame (3) is provided with an assembling portion (22) which is bent upwards, a sash locking piece (23) is arranged on the assembling portion (22), and the sash locking piece (23) and the assembling portion (22) are fixed through M5 screw locking.

6. The dual-lever three-fulcrum fall-preventing hinge according to any one of claims 1-5, wherein: the bottom of heterotypic guide rail (4) is equipped with guide rail stay (44), guide rail stay (44) and heterotypic guide rail (4) are fixed through M5 screw locking.