CN215485423U - Hinge assembly on casement window - Google Patents

Abstract

The disclosure relates to a hinge assembly on a casement window, which is applied to the field of window body hinge devices. This hinge subassembly on flat-open window includes: the connecting piece is provided with a fastener; the bottom of the first connecting piece is buckled with the buckling piece and is in sliding connection with the buckling piece; the first end of the limiting connecting piece is fixedly connected with the first connecting piece, a limiting clamping groove is formed in the limiting connecting piece, the first end of the limiting clamping groove is wider than the second end of the limiting clamping groove, a second connecting piece is arranged in the limiting clamping groove, and the second connecting piece penetrates through the connecting piece and is in sliding connection with the limiting clamping groove; the window sash connecting piece is connected with a transmission connecting piece in a sliding mode, one end of the transmission connecting piece is fixedly connected with the first connecting piece, the first end of the bottom of the window sash connecting piece is movably connected with the connecting piece through a first connecting rod, and the second end of the bottom of the window sash connecting piece is hinged and connected with the connecting piece in a sliding mode.

Description

Hinge assembly on casement window

Technical Field

The utility model relates to the field of window body hinge devices, in particular to an upper hinge assembly of a casement window.

Background

The casement window of the casement window moves along a certain horizontal direction, so called the casement window, the hinge of the casement window is installed on one side of the window sash and connected with the window frame, according to outward or inward opening, the window is divided into an outward casement window and an inward casement window, the window has the characteristics of simple structure, flexible opening, convenient cleaning and better sealing performance when closed, and is the most extensive window type adopted in civil buildings, but in the prior art, the upper hinge of the inward-falling casement window generally does not have a swing-proof structure, and the upper hinge of the window is easily blown to swing left and right by wind when the window is in an open state, so the window is extremely unsafe.

The applicant of the present invention finds that the prior art has at least the following technical problems:

the upper hinge of the casement window capable of falling inwards in the prior art generally does not have a swing-proof structure, and is easy to be blown by wind to swing left and right when the window is in an open state, so that the technical problem of being extremely unsafe is solved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an upper hinge assembly of a casement window, which solves the technical problems that an upper hinge of the casement window capable of falling inwards in the prior art does not have a swing-proof structure generally, and the upper hinge of the window is easily blown by wind to swing left and right when the window is in an open state, so that the upper hinge assembly is extremely unsafe.

In view of the above problem, an embodiment of the present invention provides an upper hinge assembly for a casement window, including: the connecting piece is provided with a clamping piece; the bottom of the first connecting piece is buckled with the buckling piece and is connected with the buckling piece in a sliding mode; the first end of the limiting connecting piece is fixedly connected with the first connecting piece, a limiting clamping groove is formed in the limiting connecting piece, the first end of the limiting clamping groove is wider than the second end of the limiting clamping groove, a second connecting piece is arranged in the limiting clamping groove, and the second connecting piece penetrates through the connecting piece and is in sliding connection with the limiting clamping groove; the window sash connecting piece is connected with a transmission connecting piece in a sliding mode, one end of the transmission connecting piece is fixedly connected with the first connecting piece, the first end of the bottom of the window sash connecting piece is movably connected with the connecting piece through a first connecting rod, and the second end of the bottom of the window sash connecting piece is hinged and connected with the connecting piece in a sliding mode.

Preferably, the connecting piece has a first connecting portion, a second connecting portion and a third connecting portion, wherein a first end of the first connecting portion is connected with a first end of the second connecting portion to form a first angle, and a second end of the second connecting portion is connected with a first end of the third connecting portion to form a second angle.

Preferably, a recess is formed in the bottom of the first connecting piece, sliding clamping grooves for sliding connection are formed in two side walls of the recess, and the first connecting portion is provided with the buckling piece which is buckled in the sliding clamping grooves and slides in the sliding clamping grooves.

Preferably, a limiting groove is formed in one end face of the window sash connecting piece, the transmission connecting piece is arranged in the limiting groove, one end of the transmission connecting piece is fixedly connected with the first connecting piece, the bottom of the window sash connecting piece is hinged to the first end of the first connecting rod, the second end of the first connecting rod is hinged to the first connecting portion, the second end of the first connecting portion is hinged to the bottom of the window sash connecting piece, a sliding groove is formed in the window sash connecting piece, and the hinged portion of the first connecting portion and the window sash connecting piece is in sliding connection with the sliding groove.

Preferably, the second end of the third connecting portion is provided with a limiting block, the middle of the limiting block is provided with a limiting groove, and the second end of the limiting connecting piece is provided with a protruding portion matched with the limiting groove.

Preferably, the hinge assembly for a casement window further comprises: a base; the first end of the second connecting rod is hinged with the first end of the base; the first end of the third connecting rod is hinged with the second end of the second connecting rod, and the second end of the third connecting rod is hinged with the connecting piece; a first end of the fourth connecting rod is hinged with the second end of the base, and the fourth connecting rod is hinged with the third connecting rod; and the first end of the fifth connecting rod is hinged with the second end of the fourth connecting rod, and the second end of the fifth connecting rod is hinged with the connecting piece through the second connecting piece.

Preferably, one end of the connecting piece is provided with a fixing piece, and the base is provided with a fixing seat matched with the fixing piece.

Preferably, the second connecting rod has a Z-shaped bending portion, and the second connecting rod is hinged to the third connecting rod at the Z-shaped bending portion.

Preferably, the window sash connecting piece is provided with a first fixing through hole for screw connection.

Preferably, one end of the window sash connecting piece is provided with a recessed part, an adjusting piece is arranged in the recessed part, the adjusting piece is in threaded connection with the window sash connecting piece through an adjusting screw, and a plurality of second fixing through holes for screw connection are formed in the adjusting piece.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

the hinge assembly on the casement window provided by the embodiment of the utility model comprises a connecting piece, a first connecting piece, a limit connecting piece and a window sash connecting piece, wherein the window sash connecting piece is fixedly connected with the top of a window sash, the second end of a transmission connecting piece is fixed with the window sash, when the window is closed, the second connecting piece is positioned at the position with a narrower limit clamping groove, and the first connecting piece is clamped on the clamping piece, so that the window cannot swing, when the window is opened outwards, the connecting piece drives the clamping piece to move, so that the first connecting piece generates sliding motion relative to the connecting piece, the first connecting piece drives the limit connecting piece to slide, so that the limit connecting piece slides relative to the second connecting piece, namely the second connecting piece is clamped in the limit clamping groove to slide, and the second connecting piece still moves at the position with the narrower limit clamping groove, meanwhile, the first connecting piece is buckled with the buckling piece, so that the normal opening of the window cannot be influenced under the condition that the window cannot swing, when the window is opened inwards, namely in an inward falling state, as the window sash connecting piece is fixed on the window sash, the window sash connecting piece is pulled inwards at the moment, the window sash connecting piece drives the first connecting rod to move, the first connecting rod drives the second end of the first connecting piece to slide and rotate in the chute, the first connecting piece drives the buckling piece to be separated from the sliding clamping groove, namely the buckling piece is separated from the first connecting piece, meanwhile, the first connecting piece drives the second connecting piece to be separated from the limiting clamping groove from the wider part of the limiting clamping groove, so that the second connecting piece is separated from the limiting connecting piece, and the window can be opened inwards for a certain angle, the hinge on the window capable of falling inwards is prevented from swinging under the condition of strong wind, meanwhile, the normal movement of the window sash is not influenced, and the window sash is not influenced by the anti-swing structure no matter in a normal opening state, a closing state or a falling inwards state, so that the technical problem that the hinge on the window is easily blown to swing left and right and is extremely unsafe due to the fact that the hinge on the window capable of falling inwards does not have the anti-swing structure in the prior art and the window is in an opening state is solved.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is an exploded view of the overall structure of an embodiment of the present invention;

FIG. 2 is a perspective view of the overall structure of the embodiment of the present invention;

FIG. 3 is a bottom view of the overall structure of an embodiment of the present invention;

FIG. 4 is a side view taken at section A-A in FIG. 3;

FIG. 5 is a schematic perspective view of an overall structure of an embodiment of the present invention in a 180-degree unfolded state;

FIG. 6 is a perspective view of the embodiment of the present invention in an expanded state with an overall structure of less than 90 degrees;

FIG. 7 is a schematic perspective view of an embodiment of the present invention showing an inverted state of the overall structure;

FIG. 8 is a schematic top view of an embodiment of the present invention in a closed state;

FIG. 9 is a schematic top view of the overall structure of the present invention in an open state;

FIG. 10 is a schematic top view of the overall structure of the present invention in an inverted state;

FIG. 11 is a schematic view of the installation state of the base in the overall structure according to the embodiment of the present invention;

fig. 12 is a schematic view illustrating an installation state of a sash connector in an overall structure according to an embodiment of the present invention.

Description of reference numerals: 100. connecting sheets; 110. a first connection portion; 111. a fastener; 120. a second connecting portion; 130. a third connecting portion; 140. a fixing member; 141. a fixed seat; 200. a first connecting member; 210. a sliding clamping groove; 300. a limiting block; 310. a limiting groove; 400. a limiting connecting sheet; 410. a boss portion; 420. a limiting clamping groove; 500. a second connecting member; 600. a sash connector; 601. a first link; 610. a limiting groove; 620. A transmission connecting sheet; 630. a recessed portion; 640. an adjustment member; 641. a second fixing through hole; 650. adjusting screws; 660. a chute; 700. a base; 710. a second link; 720. A third link; 721. a Z-shaped bending part; 730. a fourth link; 740. and a fifth link.

Detailed Description

The embodiment of the utility model provides an upper hinge assembly of a casement window, which is used for solving the technical problems that the upper hinge of the casement window capable of falling inwards in the prior art does not have a swing-proof structure generally, and the upper hinge of the window is easily blown by wind to swing left and right when the window is in an open state, so that the upper hinge assembly is extremely unsafe.

The technical scheme provided by the utility model has the following general idea:

a casement window upper hinge assembly comprising: the connecting piece 100, the connecting piece 100 has a first connecting portion 110, a second connecting portion 120 and a third connecting portion 130, wherein a first end of the first connecting portion 110 is connected with a first end of the second connecting portion 120 and forms a first angle, and a second end of the second connecting portion 120 is connected with a first end of the third connecting portion 130 and forms a second angle; a recess is formed in the bottom of the first connecting piece 200, sliding clamping grooves 210 for sliding connection are formed in two side walls of the recess, a fastening piece 111 is arranged on the first connecting portion 110, and the fastening piece 111 is fastened in the sliding clamping groove 210 and slides in the sliding clamping groove 210; a limit connecting piece 400, a first end of the limit connecting piece 400 is fixedly connected with the first connecting piece 200, a limit slot 420 is arranged on the limit connecting piece 400, the part of the limit slot 420 close to the second end of the limit connecting piece 400 is wider than the part far away from the second end of the limit connecting piece 400, wherein, a second connecting piece 500 is arranged in the limit slot 420, the second connecting piece 500 passes through the third connecting part 130 and is connected with the limit slot 420 in a sliding way, a window sash connecting piece 600, one end surface of the window sash connecting piece 600 is provided with a limit groove 610, a transmission connecting piece 620 is arranged in the limit groove 610, one end of the transmission connecting piece 620 is fixedly connected with the first connecting piece 200, the bottom of the window sash connecting piece 600 is hinged with the first end of the first connecting rod 601, the second end of the first connecting rod 601 is hinged with the first connecting part 110, the second end of the first connecting part 110 is hinged with the bottom of the window sash connecting piece 600, the window sash connecting piece is provided with a sliding groove 660, the part of the second end of the first connecting part 110, which is hinged with the bottom of the window sash connecting piece 600, is in sliding connection with the sliding groove 660, the window sash connecting piece 600 is fixedly connected with the top of the window sash, the second end of the transmission connecting piece 620 is fixed with the window sash, when the window is closed, the second connecting piece 500 is at the narrower position of the limit clamping groove 420, meanwhile, the first connecting piece 200 is clamped on the clamping piece 111, so that the window cannot swing, when the window is opened outwards, the connecting piece 100 drives the clamping piece 111 to move, so that the first connecting piece 200 generates sliding motion relative to the connecting piece 100, at the moment, the first connecting piece 200 drives the limit connecting piece 400 to slide, so that the limit connecting piece 400 slides relative to the second connecting piece 500, namely, the second connecting piece 500 is clamped in the limit clamping groove 420 to slide, at the moment, the second connecting piece 500 still moves at the narrower position of the limit clamping groove 420, meanwhile, the first connecting piece 200 is buckled with the buckling piece 111, so that the normal opening of the window cannot be influenced under the condition that the window does not swing, when the window is opened inwards, namely in an inward-falling state, as the window sash connecting piece 600 is fixed on the window sash, the window sash connecting piece 600 is pulled inwards at the moment, the window sash connecting piece 600 drives the first connecting rod 601 to move, the first connecting rod 601 drives the second end of the first connecting part 110 to slide and rotate in the sliding groove 660, the first connecting piece 200 drives the buckling piece 111 to be separated from the sliding clamping groove 210 at the moment, namely, the buckling piece 111 is separated from the first connecting piece 200, and simultaneously the first connecting piece 200 drives the second connecting piece 500 to be separated from the limiting clamping groove 420 from the wider part of the limiting clamping groove 420, so that the second connecting piece 500 is separated from the limiting connecting piece 400, and the window can be opened inwards for a certain angle, and the hinge assembly on the casement window disclosed by the embodiment of the utility model, the swing-proof structure is arranged, the normal motion of the window sash can not be influenced when the hinge on the inward falling type window is prevented from swinging under the condition of strong wind, and the window sash can not be influenced by the swing-proof structure no matter in a normal opening state, a closing state or an inward falling state, so that the technical problem that the hinge on the inward falling type casement window in the prior art generally does not have the swing-proof structure, and the hinge on the window is easily blown to swing left and right by wind when the window is in an opening state and is extremely unsafe is solved.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 12, an upper hinge assembly of a casement window according to an embodiment of the present invention includes: connecting piece 100, first connecting piece 200, limit connecting piece 400 and sash connecting piece 600.

The connecting sheet 100 has a first connecting portion 110, a second connecting portion 120 and a third connecting portion 130, wherein a first end of the first connecting portion 110 is connected with a first end of the second connecting portion 120 to form a first angle, a second end of the second connecting portion 120 is connected with a first end of the third connecting portion 130 to form a second angle, and specifically, the first connecting portion 110 and the third connecting portion 130 form a relative vertical dislocation effect under the action of the second connecting portion 120, so that some parts with a certain height can be placed on the first connecting portion 110, the first connecting portion 110 after placing the parts can be higher than the vertical height of the third connecting portion 130, which is preferred here, and the first angle and the second angle are not less than 90 °.

Wherein, the bottom of the first connecting piece 200 is provided with a recess, two side walls of the recess are provided with sliding slots 210 for sliding connection, the first connecting part 110 is provided with a fastener 111, the fastener 111 is fastened in the sliding slot 210 and slides in the sliding slot 210, the fastener 111 can be a part with a wide head and a narrow bottom, such as a nail, the locking member 111 can be locked in the sliding card slot 210 and perform sliding motion, as can be appreciated, since the first link 200 is slidably moved on the first coupling part 110, the first connection part 110 must have a predetermined position thereon for the first connection member 200 to be slidable, so that the first connecting piece 200 slides at the reserved position, the first connecting piece 200 should be further provided with a snap or through hole for fixedly connecting with the sash, so that the first connecting piece 200 can be snap-connected or threaded with the sash.

Wherein, the first end of the limit connecting sheet 400 is fixedly connected with the first connecting piece 200, the limit connecting sheet 400 is provided with a limit clamping groove 420, the part of the limit clamping groove 420 close to the second end of the limit connecting sheet 400 is wider than the part far away from the second end of the limit connecting sheet 400, wherein, the limit clamping groove 420 is internally provided with a second connecting piece 500, the second connecting piece 500 passes through the third connecting part 130 and is connected with the limit clamping groove 420 in a sliding way, the second connecting piece 500 is a part with wide upper part and narrow lower part, such as a nail, the second connecting piece 500 can rotate at the third connecting part 130 and can rotate and move on the limit clamping groove 420, the second connecting piece 500 can be connected with an external connecting rod as a hinge assembly, because the part of the limit clamping groove 420 close to the second end of the limit connecting sheet 400 is wider than the part far away from the second end of the limit connecting sheet 400, that is, the position-limiting locking groove 420 has a narrow portion and a wide portion, and in actual use, the second connecting member 500 generally moves back at the narrow portion of the position-limiting locking groove 420, and when it moves to the wide portion of the position-limiting locking groove 420, the second connecting member 500 is separated from the position-limiting locking groove.

Wherein, a limit groove 610 is arranged on one end face of the window sash connecting piece 600, a transmission connecting piece 620 is arranged in the limit groove 610, one end of the transmission connecting piece 620 is fixedly connected with the first connecting piece 200, the bottom of the window sash connecting piece 600 is hinged with the first end of the first connecting rod 601, the second end of the first connecting rod 601 is hinged with the first connecting part 110, the second end of the first connecting part 110 is hinged with the bottom of the window sash connecting piece 600, a chute 660 is arranged on the window sash connecting piece, the part of the second end of the first connecting part 110, which is hinged with the bottom of the window sash connecting piece 600, is in sliding connection with the chute 660, when in actual use, the transmission connecting piece 620 can slide in the limit groove 610, because one end of the transmission connecting piece 620 is fixedly connected with the first connecting piece 200, the transmission connecting piece 620 can drive the first connecting piece 200 to move, thereby driving the limit connecting piece 400 to move, the bottom of the window sash connecting member 600 is hinged to the first end of the first connecting rod 601, that is, the first connecting rod 601 may rotate relative to the window sash connecting member 600, the second end of the first connecting rod 601 is hinged to the first connecting portion 110, that is, the second end of the first connecting rod 601 may rotate relative to the first connecting portion 110, the second end of the first connecting portion 110 is hinged to the bottom of the window sash connecting member 600, that is, the second end of the first connecting portion 110 may rotate relative to the bottom of the window sash connecting member 600, because the window sash connecting member is provided with a sliding groove 660, the portion where the second end of the first connecting portion 110 is hinged to the bottom of the window sash connecting member 600 is slidably connected to the sliding groove 660, specifically, the second end of the first connecting portion 110 is provided with a connecting member, such as a nail, which may rotate and slide in the sliding groove 660, and the portion where the second end of the first connecting portion 110 is hinged to the bottom of the window sash connecting member 600 is also configured by the connecting member And (4) obtaining.

Further, a second end of the third connecting portion 130 is provided with a limiting block 300, the middle of the limiting block 300 is provided with a limiting groove 310, and a second end of the limiting connecting piece 400 is provided with a protruding portion 410 matched with the limiting groove 310, referring to fig. 5 to 10, when the window sash is in a closed state or a 180-degree open state, the protruding portion 410 is clamped in the limiting groove 310, so as to further prevent the hinge structure on the window sash from swinging.

Further, the window sash connecting member 600 is provided with a first fixing through hole for screw connection, and the window sash connecting member 600 needs to be fixed on the window sash, and the first fixing through hole can be used for screw connection, so that the window sash connecting member 600 can be fixed on the window sash through screws.

Further, one end of the window sash connecting piece 600 is provided with a recessed portion 630, an adjusting piece 640 is arranged in the recessed portion 630, the adjusting piece 640 is in threaded connection with the window sash connecting piece 600 through an adjusting screw 650, a plurality of second fixing through holes 641 for screw connection are arranged on the adjusting piece 640, the adjusting piece 640 is fixed on a window sash through the second fixing through holes 641, the screw 650 is screwed at the moment, the window sash connecting piece 600 can move relative to the adjusting piece 640, so that the gap between the left and right adjusting fan frames is realized, and the problem that the window sash cannot be opened and closed due to the drooping of the hinge is effectively solved.

Example two

A casement window upper hinge assembly further comprising: a base 700, a second link 710, a third link 720, a fourth link 730, and a fifth link 740.

Wherein the base 700 is used for connecting with the top of the window frame, the installation state can refer to fig. 11, the base 700 should be provided with a plurality of third fixing through holes for fixedly connecting with the window frame or for screwing, i.e. the base 700 can be connected with the window frame by snapping or screwing.

Wherein the first end of the second link is hinged to the first end of the base 700, that is, the first end of the second link can rotate relative to the first end of the base 700.

The first end of the third link 720 is hinged to the second end of the second link 710, and the second end of the third link 720 is hinged to the connecting plate 100, that is, the first end of the third link 720 and the second end of the second link 710 can rotate relatively, and the second end of the third link 720 and the connecting plate 100 can rotate relatively.

The first end of the fourth link 730 is hinged to the second end of the base 700, and the fourth link 730 is hinged to the third link 720, that is, the first end of the fourth link 730 can rotate relative to the base 700, and the fourth link 730 can rotate relative to the third link 720.

The first end of the fifth link 740 is hinged to the second end of the fourth link 730, the second end of the fifth link 740 is hinged to the connecting piece 100 through the second connecting piece 500, that is, the first end of the fifth link 740 can rotate relative to the second end of the fourth link 730, the second connecting piece 500 can be a rivet, the second end of the fifth link 740 is hinged to the second connecting piece 500 through a rivet, and the second end of the fifth link 740 can rotate relative to the connecting piece 100.

In practical use, the base 700 is fixed on the frame of the window, the window sash connecting piece 600 is fixed on the window sash, during the movement of the window sash, the window sash fixing piece 600 drives the connecting piece 100 to move, the connecting piece 100 drives the third connecting rod 720 to move, because the third connecting rod 720 is hinged with the second connecting rod 710, the third connecting rod 720 drives the second connecting rod 710 to move, the connection of the third connecting rod 720 and the second connecting rod 710 enables the connecting piece 100 to move at an angle of 0-180 degrees relative to the base 700, meanwhile, the connecting piece 100 is hinged with the fourth connecting rod 730 through the fifth connecting rod 740, the hinge connection of the fourth connecting rod 730 and the base 700 is also hinged with the third connecting rod 720, the fourth connecting rod 730 and the fifth connecting rod 740 form a reinforced structure, the fourth connecting rod 730 and the fifth connecting rod 740 bear the connecting piece 100 and the third connecting rod 720, and the connection among the connecting piece 100, the third connecting rod 720 and the base 700 is more stable, and the connection relationship between the fourth connecting rod 730 and the fifth connecting rod 740 and other parts is hinge-connected, so that the movement of the connecting piece 100 is not affected, the connecting piece 100 can be opened to an angle larger than 90 degrees relative to the base 700, and simultaneously, the sash and the frame are stably connected due to the reinforcing effect of the fourth connecting rod 730 and the fifth connecting rod 740.

Further, referring to fig. 5, 6 and 11, one end of the connecting piece 100 is provided with a fixing element 140, the base 700 is provided with a fixing seat 141 matched with the fixing element 140, the fixing element 140 falls off the fixing seat 140 when the window sash is opened, and is combined with the fixing seat 141 when the window is closed, for example, the fixing element 140 may be a triangular insert, and the fixing seat 141 has a triangular insert structure, and by adopting the fixing element 140 and the fixing seat 141, the problem of infirm hinge closing can be effectively solved, and the anti-picking and anti-theft functions are enhanced.

Further, referring to fig. 1 and 5, the second link 720 has a Z-shaped bending portion 721, the second link 720 is hinged to the third link 730 at the Z-shaped bending portion 721, and the Z-shaped bending portion 721 enables the third link 730 to rotate relative to the second link 720 more easily and more easily when the window is closed, so as to achieve the effect of saving more labor when the window is closed.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the utility model. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims (10)

1. A casement window upper hinge assembly comprising:

the connecting piece is provided with a clamping piece;

the bottom of the first connecting piece is buckled with the buckling piece and is connected with the buckling piece in a sliding mode;

the first end of the limiting connecting piece is fixedly connected with the first connecting piece, a limiting clamping groove is formed in the limiting connecting piece, the first end of the limiting clamping groove is wider than the second end of the limiting clamping groove, a second connecting piece is arranged in the limiting clamping groove, and the second connecting piece penetrates through the connecting piece and is in sliding connection with the limiting clamping groove;

the window sash connecting piece is connected with a transmission connecting piece in a sliding mode, one end of the transmission connecting piece is fixedly connected with the first connecting piece, the first end of the bottom of the window sash connecting piece is movably connected with the connecting piece through a first connecting rod, and the second end of the bottom of the window sash connecting piece is hinged and connected with the connecting piece in a sliding mode.

2. The hinge assembly of claim 1, wherein the connecting piece has a first connecting portion, a second connecting portion and a third connecting portion, wherein a first end of the first connecting portion is connected to a first end of the second connecting portion to form a first angle, and a second end of the second connecting portion is connected to a first end of the third connecting portion to form a second angle.

3. The hinge assembly on a casement window according to claim 2, wherein a recess is formed in the bottom of the first connecting piece, sliding clamping grooves for sliding connection are formed in two side walls of the recess, and the first connecting portion is provided with the fastener which is fastened in the sliding clamping grooves and slides in the sliding clamping grooves.

4. The hinge assembly on a casement window according to claim 2, wherein a limiting groove is formed in one end face of the sash connecting piece, the transmission connecting piece is arranged in the limiting groove, the bottom of the sash connecting piece is hinged to a first end of a first connecting rod, a second end of the first connecting rod is hinged to the first connecting portion, a second end of the first connecting portion is hinged to the bottom of the sash connecting piece, a sliding groove is formed in the sash connecting piece, and the hinged portion of the first connecting portion and the sash connecting piece is in sliding connection with the sliding groove.

5. The hinge assembly on a casement window according to claim 2, wherein a limiting block is arranged at the second end of the third connecting part, a limiting groove is formed in the middle of the limiting block, and a protruding part matched with the limiting groove is arranged at the second end of the limiting connecting piece.

6. A casement window upper hinge assembly according to claim 1, further comprising:

a base;

the first end of the second connecting rod is hinged with the first end of the base;

the first end of the third connecting rod is hinged with the second end of the second connecting rod, and the second end of the third connecting rod is hinged with the connecting piece;

a first end of the fourth connecting rod is hinged with the second end of the base, and the fourth connecting rod is hinged with the third connecting rod;

and the first end of the fifth connecting rod is hinged with the second end of the fourth connecting rod, and the second end of the fifth connecting rod is hinged with the connecting piece through the second connecting piece.

7. The hinge assembly on a casement window according to claim 6, wherein one end of the connecting piece is provided with a fixing piece, and the base is provided with a fixing seat matched with the fixing piece.

8. The hinge assembly of claim 6, wherein the second link has a Z-bend at which the second link is hingedly connected to the third link.

9. The hinge assembly of any one of claims 1 to 8, wherein the sash connector is provided with a first fixing through hole for screw connection.

10. The hinge assembly on a casement window according to any one of claims 1 to 8, wherein one end of the sash connecting piece is provided with a recessed part, an adjusting piece is arranged in the recessed part, the adjusting piece is in threaded connection with the sash connecting piece through an adjusting screw, and a plurality of second fixing through holes for screw connection are formed in the adjusting piece.

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