CN218234765U

CN218234765U - Flat-open hinge and window

Info

Publication number: CN218234765U
Application number: CN202221412344.XU
Authority: CN
Inventors: 张喜强
Original assignee: Beijing Muyi Oriental Technology Co ltd
Current assignee: Beijing Muyi Oriental Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-01-06
Anticipated expiration: 2032-06-08

Abstract

The utility model provides a flat-open hinge and window, including first support arm, second support arm and link assembly, first support arm with link assembly swing joint, the second support arm with link assembly swing joint, first support arm is used for connecting the casement, the second support arm is used for connecting the window frame, first support arm can move for the second support arm, and link assembly is used for retraining and making the first support arm move along the predetermined orbit relative to the second support arm; the casement hinge comprises a window frame and a window sash, wherein a first supporting arm of the casement hinge is connected with the window sash, and a second supporting arm of the casement hinge is connected with the window frame, so that the window sash can be opened or closed relative to the window frame; the casement hinge and the window have the advantages of reasonable structure and convenient use, and can improve the production efficiency of the window.

Description

Flat-open hinge and window

Technical Field

The utility model belongs to the technical field of the door and window hardware, concretely relates to flat-open hinge and window.

Background

Windows are an essential component of buildings, and in the home, office, etc., the main function of windows is to let light or air into the indoor environment (ventilation). The window mainly comprises a window frame and a window sash, wherein the window frame and the window sash are movably connected through hinges, and the hinges mainly comprise a rotary type hinge and a flat-open type sliding support. The casement hinge can provide certain friction force or resistance, so that the problem that a window sash is easily damaged due to free rotation of the window sash due to wind power when the rotary hinge is used can be effectively avoided or reduced in the using process, and therefore, a window using the casement hinge is favored by the market. However, the side-hung hinge in the prior art has certain inconvenience in use, such as 202020871689.6, which is named as a clamping type mounting plate and a friction hinge; particularly, two supporting arms of the casement hinge are respectively used for fixing a window frame and a window sash, and due to the superposition of comprehensive factors such as cutting processing errors, assembly accuracy and hinge installation accuracy of sectional materials forming the window frame and/or the window sash, the edges of the window frame and the window sash can not be parallel to each other or the longitudinal axes of the window frame and the window sash can not be parallel or matched when the window is half-closed, so that the window can not be closed smoothly or opened smoothly; or the edge seam width between the window frame and the window sash is inconsistent after the window is closed, so that the window meets the non-corresponding installation requirements or the integral aesthetic property of the window is influenced. Further, the casement hinge in the prior art cannot flexibly fine-tune the position of the window sash relative to the window frame (the window sash moves along the axial direction of the hinge support arm), that is, once the casement hinge is fixed with the window frame and the window sash (for example, the casement hinge is provided with a hole and fixed by a bolt), the adjustment is relatively difficult; furthermore, higher assembly precision or assembly requirement can be required, so that the assembly production efficiency of the window can be correspondingly reduced, and the problem of inconvenient use caused by the flat-open hinge is solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a horizontal-open hinge and window that rational in infrastructure, convenient to use alright improve window production efficiency.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

the utility model provides a flat-open hinge, includes first support arm, second support arm and link assembly, first support arm with link assembly swing joint, the second support arm with link assembly swing joint, first support arm is used for connecting the casement, the second support arm is used for connecting the window frame, first support arm can for the second support arm removes, just link assembly is used for the restraint and makes first support arm for the second support arm moves along predetermined orbit.

As a further improvement of the casement hinge, one end of the first support arm is also provided with a fine adjustment mechanism, and the fine adjustment mechanism is used for adjusting the axial moving distance of the window sash relative to the first support arm;

the fine adjustment mechanism comprises an interlocking block, an interlocking plug board and a first adjusting piece, the interlocking plug board is detachably connected with the interlocking block, the first adjusting piece is connected with the interlocking block, and the first adjusting piece is in transmission connection with the first supporting arm;

the interlocking piece with first supporting arm sliding connection, first regulating part is used for adjusting and makes interlocking piece and/or the interlocking picture peg is followed the axial direction of first supporting arm removes.

As a further improvement to the casement hinge, a guide chute is provided on the first support arm, a slider which is mutually matched with the guide chute is provided on the interlocking block, the slider is fixedly connected with the interlocking block, and the slider is slidably connected with the guide chute.

As a further improvement of the flat-open hinge, the guide sliding groove is a dovetail groove.

As a further improvement on the side-hung hinge, the first support arm is further provided with a limiting hole, at least part of the first adjusting piece is embedded in the limiting hole relative to the radial direction of the first adjusting piece, the first adjusting piece can rotate relative to the limiting hole, and the first adjusting piece is connected with the interlocking block through threads.

As a further improvement of the casement hinge, the first support arm comprises a first body and a second body, the first body and the second body are overlapped, the guide chute is arranged at the first end of the second body, and the area of the first body corresponding to the guide chute forms the bottom of the guide chute;

the limiting hole is formed in the first end of the first body, the length of the first body is larger than that of the second body, a step is formed, and the limiting hole is located below the guide sliding groove.

As a further improvement of the flat-open hinge, the first support arm further comprises at least one preload piece, the preload piece penetrates through and connects the first body and the second body, and the preload piece is used for locking the first body and the second body;

and after the first body and the second body are locked, the first body is abutted against the sliding block and the sliding block is fixed in the guide sliding groove.

As right the flat-open hinge's further improvement, one of second support arm is served and is provided with the portion of bending, the portion of bending the second support arm forms the contained angle, the second support arm with all be provided with first locking piece in the portion of bending, first locking piece can for the second support arm or the portion of bending rotates, makes the second support arm with the portion of bending is fixed in on the window frame.

As a further improvement on the flat-open hinge, a reinforcing back plate is further arranged on the second supporting arm and is arranged along the axial direction of the second supporting arm, the reinforcing back plate is fixedly connected with the second supporting arm, a clamping part is further arranged on one side of the reinforcing back plate in the width direction and is used for clamping the window frame, a second locking piece is further arranged on the reinforcing back plate and can rotate relative to the reinforcing back plate, and the second locking piece and the clamping part are matched with each other to enable the reinforcing back plate to be fixed with the window frame.

As a further improvement of the flat-open hinge, an accommodating groove is formed in the reinforcing back plate, the second locking piece is located in the accommodating groove, one end of the second locking piece is rotatably connected with the reinforcing back plate and/or the second supporting arm, and the other end of the second locking piece is a free end;

after the second locking piece is locked with the window frame, the free end of the second locking piece protrudes from the other side of the reinforcing back plate in the width direction, and is abutted against the window frame;

the second locking piece is protruded on the surface of the reinforced back plate relative to the thickness direction of the reinforced back plate.

As right flat-open hinge's further improvement, link assembly includes first connecting rod, second connecting rod and third connecting rod, the one end of first connecting rod with first support arm rotates to be connected, the other end of first connecting rod with the second support arm rotates to be connected, the one end of second connecting rod with first support arm rotates to be connected, the other end of second connecting rod with second support arm sliding connection, the one end of third connecting rod with the second support arm rotates to be connected, the other end of third connecting rod with the second connecting rod rotates to be connected.

As a further improvement on the flat-open hinge, a sliding part is further arranged between the second connecting rod and the second supporting arm, the sliding part is connected with the second supporting arm in a sliding manner, the sliding part can reciprocate along the length direction of the second supporting arm, and the second connecting rod is connected with the sliding part in a rotating manner.

As a further improvement to the flat-open hinge, a friction piece and a second adjusting piece are further arranged on the sliding piece, the friction piece is fixedly connected with the sliding piece, the friction piece is located between the sliding piece and the second supporting arm, the second adjusting piece is movably connected with the sliding piece, and the second adjusting piece is used for adjusting the compression force of the friction piece and the second supporting arm.

As right the flat-open hinge's further improvement, the slider is the shape of falling C, just the opening of slider is downward, for the width direction of second support arm or reinforcing backplate, the both sides of second support arm are formed with the groove of stepping down, perhaps the both sides department of reinforcing the backplate is formed with the groove of stepping down, perhaps the second support arm with strengthen and form the groove of stepping down between the backplate, just the groove of stepping down is followed the second support arm or the length direction who strengthens the backplate extend.

As a further improvement of the flat-open hinge, the bending part is further provided with a correction hole, the first support arm is further fixed with a correction piece matched with the correction hole, and the correction piece can be inserted into the correction hole and correct the position of the first support arm relative to the second support arm.

A window comprises a window frame, a window sash and the flat-open hinge, wherein a first supporting arm of the flat-open hinge is connected with the window sash, and a second supporting arm of the flat-open hinge is connected with the window frame, so that the window sash can be opened or closed relative to the window frame.

Compared with the prior art the beneficial effects of the utility model mainly appear: the first support arm of the casement hinge is provided with the fine adjustment mechanism, so that the axial distance of the window sash relative to the first support arm can be finely adjusted before the window sash is formally fixed, namely, the fine adjustment and correction of the position of the window sash relative to the window frame are realized; therefore, convenience when the casement hinge is used or assembly of the window is facilitated is improved, and assembly or production efficiency of the window is effectively improved.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. The same reference numerals are used throughout the drawings to denote the same parts, and the drawings are not intended to be drawn to scale in actual size, with emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic structural view of a flat-open hinge in the present invention in an unfolded state;

fig. 2 is a rear view structural schematic diagram of a flat-open hinge in the present invention in an unfolded state;

fig. 3 is an exploded view of a side hung hinge of the present invention;

fig. 4 is a structural schematic diagram of a folding state of the side hung hinge of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the present invention is described only, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limited to the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.

As shown in fig. 1 to 4, the present embodiment provides a flat-open hinge, including a first support arm 1, a second support arm 2, and a connecting rod assembly 3, where the connecting rod assembly 3 is movably connected to the first support arm 1 and the second support arm 2, and the first support arm 1 and the second support arm 2 can move relatively; the first support arm 1 is used for being connected with a window sash, the second support arm 2 is used for being connected with a window frame, a fine adjustment mechanism 4 is further arranged at one end of the first support arm 1, and the fine adjustment mechanism 4 is used for adjusting the axial moving distance of the window sash relative to the first support arm 1. Specifically, a C-shaped groove is formed in a section bar of the window sash, a first support arm 1 of the casement hinge is inserted into the C-shaped groove of the window sash to complete connection of the casement hinge and the window sash when the window is assembled, before the first support arm 1 and the window sash are locked (for example, a hole is formed in the window sash, and then the first support arm 1 and the window sash are locked through a bolt), the reciprocating movement distance of the window sash relative to the axis of the first support arm 1 can be adjusted through a fine adjustment mechanism, namely, fine adjustment and correction of the position of the window sash relative to the window frame are realized, and for example, the longitudinal axes of the window sash and the window frame are consistent.

As shown in fig. 1-3, in the preferred embodiment, the fine adjustment mechanism 4 comprises an interlocking block 41, an interlocking insertion plate 42 and a first adjustment member 43, wherein the interlocking insertion plate 42 is detachably connected with the interlocking block 41 through a bolt, the first adjustment member 43 is connected with the interlocking block 41, and the axis of the interlocking block 41 and/or the interlocking insertion plate 42 forms an included angle with the axis of the first support arm 1. In this embodiment, the window sash is generally rectangular, a support arm 1 and the interlocking insert plate 42 and the interlocking block 41 are respectively located on two adjacent edges of the window sash, and the first adjusting member 43 is in driving connection with the first support arm 1. Further, the interlocking block 41 is slidably connected to the first support arm 1, and the first adjusting member 43 is used to adjust and move the interlocking block 41 and/or the interlocking insertion plate 42 in the axial direction of the first support arm 1. Further, a guide sliding groove 44 is formed in the first support arm 1, the axis of the guide sliding groove 44 is parallel to the axis of the first support arm 1, a sliding block 45 matched with the guide sliding groove 44 is arranged on the interlocking block 41, the sliding block 45 and the interlocking block 41 are integrally formed, and the sliding block 45 is connected with the guide sliding groove 44 in a sliding mode; in this embodiment, the guide sliding groove 44 is a dovetail groove, so that the sliding block 45 or the interlocking block 41 can move along the axial direction of the first support arm 1. Specifically, when the casement hinge is connected to a window sash, the first support arm 1 is inserted into a C-shaped groove at the top or bottom of the window sash (profile), and the interlocking block 41 and the interlocking insertion plate 42 are located at an edge of the window sash adjacent to the bottom or top thereof, wherein the interlocking insertion plate 42 is inserted into a C-shaped groove at another edge of the window sash adjacent to the bottom C-shaped groove, and then the interlocking plate 42 and the interlocking block 41 are fastened by bolts to achieve interlocking fixation with the window sash, further, the fine adjustment mechanism 4 is fixed to the window sash in a longitudinal direction of the window sash or the interlocking block 41 or the interlocking insertion plate 42, that is, the window sash can be moved in an axial direction of the first support arm 1 by adjusting the first adjustment 43 in a transverse direction to achieve fine adjustment correction of the position of the window sash relative to the window frame.

As shown in fig. 3, in a preferred embodiment, the first supporting arm 1 is further provided with a limiting hole 46, the first adjusting member 43 is at least partially embedded or sunk in the limiting hole 46 relative to the radial direction of the first adjusting member 43, the first adjusting member 43 can rotate relative to the limiting hole 46, and the first adjusting member 43 is connected with the interlocking block 41 through a screw thread, in this embodiment, the first adjusting member 43 is a bolt. Specifically, since the first adjusting member 43 is sunk in the limiting hole 46, when the first adjusting member 43 rotates, the position of the first adjusting member 43 relative to the first support arm 1 does not change, and the first adjusting member 43 and the interlocking block 41 are connected by a thread, so that the first adjusting member 43 rotates to convert into a linear motion of the interlocking block 41 relative to the first support arm 1, and since the interlocking block 41 is fixed to the window sash and the interlocking block 41 is slidably connected to the first support arm 1, that is, the first adjusting member 43 rotates to convert into an axial motion of the window sash relative to the first support arm 1, and finally, a fine adjustment of the position of the window sash relative to the window frame is achieved.

As shown in fig. 3, in a preferred embodiment, the first support arm 1 comprises a first body 11 and a second body 12, the first body 11 and the second body 12 being stacked on each other. The guide chute 44 is arranged at the first end of the second body 12, and the area of the first body 11 corresponding to the guide chute 44 forms the bottom wall of the guide chute 44; the limiting hole 46 is opened at the first end of the first body 11, the length of the first body 11 is greater than that of the second body 12 and forms a step, and the limiting hole 46 is located below the guide chute 44.

Further, in a preferred embodiment, the first support arm 1 further comprises at least one pre-tightening member 13, the pre-tightening member 13 penetrates through and connects the first body 11 and the second body 12, and the pre-tightening member 13 is used for mutually locking and fixing the first body 11 and the second body 12; after the first body 11 and the second body 12 are locked, the first body 11 abuts against the sliding block 45 and the sliding block 45 is pressed and fixed in the guiding sliding groove 44, or after the first body 11 and the second body 12 are locked by using the pre-tightening piece 13, the interlocking block 41 is also fixed relative to the first body 11 and the second body 12. The preload member 13 in this embodiment is a bolt. Specifically, during the assembly process of the window, the fine adjustment of the window sash needs to be performed by the fine adjustment mechanism 4, and at this time, the preload piece 13 is loosened, so that the interlocking block 41 or the sliding block 45 on the interlocking block 41 can freely slide along the guide sliding groove 44; when the adjustment is completed, the first body 11 and the second body 12 are locked by the preload member 13 to lock the position of the interlock block 41 with respect to the first support arm 1.

As shown in fig. 3, in a preferred embodiment, a bent portion 21 is provided at a first end of the second support arm 2, the bent portion 21 forms an included angle of 90 degrees with the second support arm 2 (a window frame is generally rectangular, so that 4 corners of the window frame or the window sash are also 90 degrees), a first locking member 22 is provided on each of the second support arm 2 and the bent portion 21, and the first locking member 22 can rotate relative to the second support arm 2 or the bent portion 21, so that the second support arm 2 and the bent portion 21 are fixed on the window frame; the fixation of the second support arm 2 to the window frame is accomplished by rotating the first locking element 22 and the edge of the first locking element 22 is clamped in the C-shaped groove of the window frame profile.

As shown in fig. 2-3, in a preferred embodiment, a reinforcing back plate 23 is further disposed on the second support arm 2, the reinforcing back plate 23 is disposed along an axial direction of the second support arm 2, the reinforcing back plate 23 and the second support arm 2 are fixed by bolts or riveting or are integrally formed, a buckling portion 24 is further disposed on one side of the reinforcing back plate 23 in a width direction, the buckling portion 24 and the reinforcing back plate 23 are integrally formed, the buckling portion 24 extends from one end of the reinforcing back plate 23 in a length direction to the other end, and the buckling portion 24 is configured to form a clamping with a window frame or a C-shaped groove of the window frame; furthermore, at least one second locking member 26 is disposed on the reinforcing back plate 23, and the second locking member 26 can rotate relative to the reinforcing back plate 23, so that the second locking member 26 and the fastening portion 24 cooperate with each other to fix the reinforcing back plate 23 to the window frame or fix the second supporting arm 23 to the window frame. In a preferred embodiment, the reinforcing back plate 23 is further provided with a receiving groove 27, the second locking member 26 is located in the receiving groove 27 at this time, wherein one end of the second locking member 26 is rotatably connected to the reinforcing back plate 23 and/or the second support arm 2 through a pin, and the other end of the second locking member 26 is a free end. Further, after the second locking member 26 is locked with the window frame, the free end of the second locking member 26 protrudes from the other side of the reinforcing back plate 23 in the width direction, and the free end of the second locking member 26 abuts against the inner wall of the C-shaped groove of the window frame. Specifically, when the second support arm 2 needs to be clamped with a C-shaped groove of the window frame, or the clamping part on the second support arm 2 needs to be clamped with the C-shaped groove of the window frame, so as to increase the connection strength between the second support arm 2 and the window frame or the C-shaped groove; at this time, because the window frame is a closed loop shape at this time, that is, the second support arm 2 at this time cannot be inserted into the groove along the axial direction of the C-shaped groove of the window frame, the buckling part 24 can only be buckled with one side of the C-shaped groove relative to the radial direction of the C-shaped groove and clamped into one side of the groove at a certain inclination angle, that is, relative to the width direction of the C-shaped groove, the other side is in a vacant position, at this time, the second locking member 26 arranged on the reinforcing back plate 23 is rotated, and the free end of the second locking member 26 is clamped at the other side of the C-shaped groove, so that the reinforcing back plate 23 or the second support arm 2 is fixed with the window frame. Further, the fastening part 24 and the reinforcing back plate 23 are integrally formed, so that the reinforcing back plate 23 can bear a larger load, when the casement hinge is applied to a window and a window sash is opened, at this time, the fastening part 24 on the reinforcing back plate 23 on the casement hinge at the bottom of the window sash can be correspondingly clamped at the innermost side of the C-shaped groove of the window frame, and the side of the C-shaped groove farthest from the window sash (relative to the inner side, the opening direction of the window sash is outward); furthermore, the fastening part 24 on the reinforcing back plate 23 on the flat-open hinge at the top of the window sash can be correspondingly fastened on the outermost side of the C-shaped groove of the window frame, namely, the side relatively close to the window sash; that is, at this time, the load due to the weight from the window sash on the reinforcing back plate 23 is mainly borne by the locking portion 24; the second locking member 26 not only enables the reinforcing back plate 23 to be clamped with the C-shaped groove of the window frame, but also enables the second locking member 26 to apply a transverse pushing force to the reinforcing back plate 23 relative to the width direction of the C-shaped groove, i.e., the reinforcing back plate 23 cannot move freely relative to the C-shaped groove, i.e., the buckling part 24 can be buckled with the edge of the C-shaped groove of the window frame sufficiently to ensure the reinforcing back plate 23 or the second support arm 2 to be stressed reliably.

Further, in the preferred embodiment, the second locking member 26 is slightly protruded from the surface of the reinforcing back plate 23 relative to the thickness direction of the reinforcing back plate 23 or the receiving groove 27. Specifically, after the second locking member 26 is used to pre-fix the second support arm 2 to the window frame, the second support arm 2 and the window frame are finally fixed by bolts, that is, when the second support arm 2 and the window frame are locked by bolts, the second locking member 26 is slightly protruded from the surface of the reinforcing back plate 23, so that the second locking member 26 is clamped between the reinforcing back plate 23 and the bottom wall of the C-shaped groove of the window frame, and further, the second locking member 26 is not easily loosened by factors such as conduction vibration, wind-induced vibration and the like of the building during the later use of the window.

As shown in fig. 3, in a preferred embodiment, the link assembly 3 includes a first link 31, a second link 32 and a third link 33, one end of the first link 31 is rotatably connected to the first support arm 1 through a pin, the other end of the first link 31 is rotatably connected to the second support arm 2 through a pin, one end of the second link 32 is rotatably connected to the first support arm 1 through a pin, the other end of the second link 32 is slidably connected to the second support arm 2, one end of the third link 33 is rotatably connected to the second support arm 2 through a pin, and the other end of the third link 33 is rotatably connected to the second link 32 through a pin.

As shown in fig. 3, in a preferred embodiment, a sliding member 34 is further disposed between the second link 32 and the second support arm 2, the sliding member 34 is slidably connected to the second support arm 2, the sliding member 34 can reciprocate along the length direction of the second support arm 2, and the second link 32 and the sliding member 34 are rotatably connected by a pin. Further, the sliding member 34 is further provided with a friction member 35 and a second adjusting member 36, the friction member 35 and the sliding member 34 are fixed by gluing or clamping, the friction member 35 is located between the sliding member 34 and the second support arm 2, the second adjusting member 36 is connected with the sliding member 34 by threads, that is, the second adjusting member 36 in this embodiment is a bolt, and the second adjusting member 36 is used for adjusting the pressing force of the friction member 35 and the second support arm 2. The friction member 35 is used to adjust the sliding resistance of the sliding member 34 with respect to the second support arm 2, thereby achieving the resistance of opening or closing the window; for example, when the wind force of the external environment is large, in order to prevent the window sash in the open state from freely swinging with the wind, the second adjusting member 36 may be rotated and the friction member 35 may be pressed against the second support arm 2, so as to increase the motion resistance of the side hung hinge.

As shown in fig. 3, in a preferred embodiment, the sliding member 34 is in an inverted C shape, and an opening of the sliding member 34 faces downward, and with respect to the width direction of the second support arm 2 or the reinforcing back plate 23, the yielding slots 5 are formed on two sides of the second support arm 2, or the yielding slots 5 are formed on two sides of the reinforcing back plate 23, or the yielding slots 5 are formed between the second support arm and the reinforcing back plate 23, and the yielding slots 5 extend along the length direction of the second support arm 2 or the reinforcing back plate 23. The standing groove 5 is provided in order to allow the slide 34 to move freely along the second support arm 2 without being obstructed.

In the preferred embodiment, as shown in fig. 3, the bending part 21 is further provided with a correction hole 25, a correction piece 47 cooperating with the correction hole 25 is further fixed on the first support arm 1, and the correction piece 47 can be inserted into the correction hole 25 to correct the position of the first support arm 1 relative to the second support arm 2. Specifically, when the window is closed, the corresponding casement hinge is in a folding and storing process, and the connecting rod assembly 3 cannot always maintain the accuracy of the movement track of the first support arm 1 relative to the second support arm 2; for example, after the flat-open hinge is folded, the first support arm 1 and the second support arm 2 cannot be on the same axis. Therefore, in the folding process of the casement hinge, after the correction piece 47 is clamped into the correction hole 25, a point of the first support arm 1 can be positioned relative to the position of the second support arm 2, so that the first support arm 1 moves relative to the second support arm 2 according to an expected movement track.

This embodiment still provides a window, and it includes window frame, casement and as above the flat-open hinge, the first support arm 1 of flat-open hinge is connected with the casement, and the second support arm 2 of flat-open hinge is connected with the window frame, makes the casement be for the window frame and is open or the closed condition.

Compared with the prior art the beneficial effects of the utility model mainly appear: the first support arm of the casement hinge is provided with the fine adjustment mechanism, so that the axial distance of the window sash relative to the first support arm can be finely adjusted before the window sash is formally fixed, namely, the fine adjustment and correction of the position of the window sash relative to the window frame are realized; thereby the convenience when having improved flat-open hinge and using or the assembly of the window of being convenient for has also effectively improved the assembly or the production efficiency of window simultaneously.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims

1. A flat-open hinge which is characterized in that: including first support arm, second support arm and link assembly, first support arm with link assembly swing joint, the second support arm with link assembly swing joint, first support arm is used for connecting the casement, the second support arm is used for connecting the window frame, first support arm can for the second support arm removes, just link assembly is used for the restraint and makes first support arm for the second support arm moves along predetermined orbit.

2. The flat-open hinge according to claim 1, characterized in that: one end of the first support arm is also provided with a fine adjustment mechanism, and the fine adjustment mechanism is used for adjusting the axial moving distance of the window sash relative to the first support arm;

the fine adjustment mechanism comprises an interlocking block, an interlocking inserting plate and a first adjusting piece, the interlocking inserting plate is detachably connected with the interlocking block, the first adjusting piece is connected with the interlocking block, and the first adjusting piece is in transmission connection with the first supporting arm;

3. The flat-open hinge according to claim 2, characterized in that: the first supporting arm is provided with a guide sliding groove, the interlocking block is provided with a sliding block matched with the guide sliding groove, the sliding block is fixedly connected with the interlocking block, and the sliding block is connected with the guide sliding groove in a sliding mode.

4. The flat-open hinge according to claim 3, characterized in that: the guide sliding groove is a dovetail groove.

5. The flat-open hinge according to claim 3, characterized in that: the first supporting arm is further provided with a limiting hole, at least part of the first adjusting piece is embedded in the limiting hole relative to the radial direction of the first adjusting piece, the first adjusting piece can rotate relative to the limiting hole, and the first adjusting piece is connected with the interlocking block through threads.

6. The casement hinge according to claim 5, wherein: the first support arm comprises a first body and a second body, the first body and the second body are overlapped, the guide chute is arranged at the first end of the second body, and the area of the first body corresponding to the guide chute forms the bottom of the guide chute;

7. The flat-open hinge according to claim 6, characterized in that: the first support arm further comprises at least one pre-tightening piece, the pre-tightening piece penetrates through and is connected with the first body and the second body, and the pre-tightening piece is used for locking the first body and the second body;

8. The casement hinge according to any one of claims 1 to 7, wherein: one of second support arm is served and is provided with the portion of bending, the portion of bending the second support arm forms the contained angle, the second support arm with all be provided with first locking piece in the portion of bending, first locking piece can for the second support arm or the portion of bending rotates, makes the second support arm with the portion of bending is fixed in on the window frame.

9. The flat-open hinge according to claim 8, characterized in that: the reinforced backboard is characterized in that a reinforced backboard is further arranged on the second supporting arm and arranged along the axial direction of the second supporting arm and fixedly connected with the second supporting arm, a clamping part is further arranged on one side of the reinforced backboard in the width direction and used for clamping the window frame, and a second locking piece is further arranged on the reinforced backboard and can rotate relative to the reinforced backboard, so that the reinforced backboard and the window frame are fixed through mutual matching of the second locking piece and the clamping part.

10. The flat-open hinge according to claim 9, characterized in that: the reinforcing back plate is provided with a containing groove, the second locking piece is positioned in the containing groove, one end of the second locking piece is rotationally connected with the reinforcing back plate and/or the second supporting arm, and the other end of the second locking piece is a free end;

11. A flat-open hinge according to any of claims 1 to 7, 9 or 10, characterized in that: link assembly includes first connecting rod, second connecting rod and third connecting rod, the one end of first connecting rod with first support arm rotates to be connected, the other end of first connecting rod with the second support arm rotates to be connected, the one end of second connecting rod with first support arm rotates to be connected, the other end of second connecting rod with second support arm sliding connection, the one end of third connecting rod with the second support arm rotates to be connected, the other end of third connecting rod with the second connecting rod rotates to be connected.

12. The flat-open hinge according to claim 11, characterized in that: a sliding part is further arranged between the second connecting rod and the second supporting arm, the sliding part is connected with the second supporting arm in a sliding mode, the sliding part can reciprocate along the length direction of the second supporting arm, and the second connecting rod is connected with the sliding part in a rotating mode.

13. The casement hinge according to claim 12, wherein: still be provided with friction spare and second regulating part on the slider, friction spare with slider fixed connection, just the friction spare is located the slider with between the second support arm, the second regulating part with slider swing joint, the second regulating part be used for adjusting friction spare with the dynamics of compressing tightly of second support arm.

14. The casement hinge according to claim 12 or 13, wherein: the slider is the shape of falling C, just the opening of slider is down, for the second support arm perhaps strengthens the width direction of backplate, the both sides of second support arm are formed with the groove of stepping down, perhaps the both sides department of strengthening the backplate is formed with the groove of stepping down, perhaps the second support arm with strengthen forming the groove of stepping down between the backplate, just the groove of stepping down is followed the second support arm or the length direction who strengthens the backplate extend.

15. The flat-open hinge according to claim 8, characterized in that: the bending part is further provided with a correction hole, a correction piece matched with the correction hole is further fixed on the first support arm, and the correction piece can be inserted into the correction hole and correct the position of the first support arm relative to the second support arm.

16. A window, characterized in that: comprising a frame, a sash and a flat-open hinge according to any one of claims 1 to 15, the first support arm of the flat-open hinge being connected to the sash and the second support arm of the flat-open hinge being connected to the frame, so that the sash can be opened or closed with respect to the frame.