A window hinge

Abstract

The present invention proposes a window hinge, including a slide rail fixed on a window frame, a pull rod fixed on a window sash, a hinge corner portion fixed at one end of the slide rail, a sliding portion installed in the slide rail and slidable; a connecting rod hinged to the pull rod at one end and hinged to the sliding portion at the other end; a fixed portion is also clamped at the hinge of the connecting rod and the pull rod, the pull rod and the fixed portion both make angular motion relative to the slide rail when the sliding portion slides, and during the angular motion, the fixed portion swings relative to the pull rod, the pull rod never contacts the hinge corner portion, and when the pull rod and the slide rail are in a closed state, one end of the fixed portion abuts against the hinge corner portion. The window hinge proposed by the present invention can fundamentally solve the problem of the pull rod impacting the hinge corner portion, prevent the hinge corner portion from tilting upward, deforming or even loosening, thereby increasing the life of the hinge corner portion.

Description

Technical Field

[0001] The invention relates to the field of hinge structures, in particular to a window hinge. Background Art

[0002] In recent years, American plastic door and window systems have inherited the advantages of European door and window systems. For the window body, the window sash can be opened or closed from the position where it contacts the window frame. More specifically, the window sash can rotate around the edge of the window frame at a certain angle under the action of external force and frequency, so as to open or close the window sash. However, the window sash and the window frame are directly connected by hinges.

[0003] A common window hinge includes a sliding rail fixed on the window frame, a pull rod fixed on the window sash, a sliding part installed in the sliding rail and capable of sliding, a first connecting plate with one end rotatably fixed to the sliding part and the other end rotatably fixed to one end of the pull rod, a second connecting plate with one end rotatably fixed to the end of the sliding rail and the other end rotatably fixed to the middle of the pull rod, a third connecting plate with one end rotatably fixed to the sliding part and the other end rotatably fixed to the middle of the second connecting plate, and a hinge corner part fixed to one end of the sliding rail by mechanical stamping and riveting.

[0004] The end of the pull rod that contacts the hinge corner portion generally has a triangular tip, which, when the pull rod is closed, will abut against the hinge corner portion, so that the hinge corner portion and the pull rod generate a certain fixed preload. However, when the pull rod abuts against the hinge corner portion, it will impact the hinge corner portion, which will cause the hinge corner portion to tilt upward and deform.

[0005] In the window hinge, manufacturing method of window hinge, and window using window hinge disclosed in Chinese patent CN105317304B, and the casement window hinge, manufacturing method of casement window hinge, and casement window using casement window hinge disclosed in Chinese patent CN107503605A, the fixing force between the hinge corner and the slide rail is increased to solve the problem that the hinge corner will not tilt upward or deform due to the impact force. However, this method cannot fundamentally solve the problem. As the use time increases, the hinge corner will still tilt upward, deform, or even loosen. Summary of the invention

[0006] In order to solve the above problems, the present invention proposes a window hinge, which can fundamentally solve the problem of the pull rod impacting the hinge corner part, so that the hinge corner part will not tilt upward, deform or even loosen, thereby increasing the life of the hinge corner part.

[0007] The present invention is achieved through the following technical solutions:

[0008] The present invention proposes a window hinge, comprising a sliding rail fixed on a window frame, a pull rod fixed on a window sash, a hinge corner portion fixed at one end of the sliding rail, a sliding portion installed in the sliding rail and capable of sliding; a connecting rod having one end hinged to the pull rod and the other end hinged to the sliding portion; a fixed portion is also clamped at the hinge between the connecting rod and the pull rod, and the pull rod and the fixed portion both make angular motion relative to the sliding rail when the sliding portion slides, and during the angular motion, the fixed portion can swing relative to the pull rod, and the pull rod never contacts the hinge corner portion, and when the pull rod and the sliding rail are in a closed state, one end of the fixed portion rests against the hinge corner portion.

[0009] Furthermore, the fixing portion is provided with a first edge wrapping and a second edge wrapping that wrap the two sides of the pull rod, and there is a gap between the first edge wrapping or the second edge wrapping and the side of the pull rod.

[0010] Furthermore, when the pull rod and the fixing portion make angular motion relative to the slide rail, the gap allows the fixing portion to swing relative to the pull rod.

[0011] Furthermore, the fixing portion includes a first side portion and a second side portion, and a fixing point is provided at the junction of the first side portion and the second side portion.

[0012] Furthermore, the hinge corner portion includes a first surface, a second surface, and an arcuate surface connecting the first surface and the second surface.

[0013] Furthermore, when the pull rod and the slide rail are in a closed state, the fixed point is completely in contact with the arc surface.

[0014] Furthermore, a first angle is defined between the first side portion and the second side portion, a second angle is defined between the first surface and the second surface, and the first angle is smaller than the second angle.

[0015] Furthermore, when the pull rod and the fixing portion make an angular motion relative to the slide rail toward the second surface, the fixing portion first abuts against the first surface, then abuts against the second surface, and finally separates from the second surface.

[0016] Furthermore, when the pull rod and the fixing portion make an angular motion relative to the slide rail toward the first surface, the fixing portion first abuts against the second surface, then abuts against the first surface, and finally separates from the first surface.

[0017] Furthermore, when the pull rod and the fixing portion make angular motion relative to the slide rail so that the pull rod is closed relative to the slide rail, the fixing portion begins to abut against the first surface or the second surface, and finally the fixing point is completely attached to the arc surface.

[0018] Beneficial effects of the present invention:

[0019] The window hinge proposed in the present invention includes a slide rail fixed on the window frame, a pull rod fixed on the window sash, a hinge corner portion fixed at one end of the slide rail, a sliding portion installed in the slide rail and slidable; a connecting rod hinged to the pull rod at one end and hinged to the sliding portion at the other end; a fixed portion is also clamped at the hinge between the connecting rod and the pull rod, the pull rod and the fixed portion both make angular motion relative to the slide rail when the sliding portion slides, and during the angular motion, the fixed portion swings relative to the pull rod, the pull rod never contacts the hinge corner portion, and when the pull rod and the slide rail are in a closed state, one end of the fixed portion abuts against the hinge corner portion. The window hinge proposed in the present invention can fundamentally solve the problem of the pull rod impacting the hinge corner portion, prevent the hinge corner portion from tilting upward, deforming or even loosening, thereby increasing the life of the hinge corner portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the window hinge proposed by the present invention when the pull rod is unfolded;

[0021] Figure 2 This is a schematic structural diagram of the window hinge proposed by the present invention when the pull rod is closed;

[0022] Figure 3 It is a schematic structural cross-sectional view of the pull rod of the window hinge proposed by the present invention when it is unfolded;

[0023] Figure 4 This is a schematic structural diagram of the fixing portion of the window hinge proposed by the present invention;

[0024] Figure 5 This is a schematic structural diagram of the hinged corner portion of the window hinge proposed by the present invention. DETAILED DESCRIPTION

[0025] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0026] Please refer to Figure 1-Figure 5The present invention proposes a window hinge, comprising a slide rail 1 fixed on a window frame, a pull rod 2 fixed on a window sash, a hinge corner portion 3 fixed at one end of the slide rail 1, and a sliding portion 4 installed in the slide rail 1 and slidable; a connecting rod 5 hinged to the pull rod 2 at one end and hinged to the sliding portion 4 at the other end; a fixing portion 6 is also clamped at the hinge between the connecting rod 5 and the pull rod 2, and the pull rod 2 and the fixing portion 6 both make angular motion relative to the slide rail 1 when the sliding portion 4 slides, and during the angular motion, the fixing portion 6 can swing relative to the pull rod 2, and the pull rod 2 never contacts the hinge corner portion 3, and when the pull rod 2 and the slide rail 1 are in a closed state, one end of the fixing portion 6 rests on the hinge corner portion 3.

[0027] In this embodiment, the present invention realizes hinge connection by connecting with rivets.

[0028] In this embodiment, the top end surface of the pull rod 2 is in an arc shape, and the top end surface of the fixing portion 6 is in a triangular mouth shape.

[0029] In this embodiment, when the pull rod 2 and the fixing portion 6 make angular motion relative to the slide rail 1 , the fixing portion 6 can swing relative to the pull rod 2 whenever the pull rod 2 switches between the closed state and the extended state.

[0030] Furthermore, the fixing portion 6 is provided with a first edge wrapping 60 and a second edge wrapping 61 wrapping both sides of the pull rod 2 , and a gap 62 is provided between the first edge wrapping 60 or the second edge wrapping 61 and the side of the pull rod 2 .

[0031] In this embodiment, the distance between the first edge 60 and the second edge 61 is greater than the distance between the two sides of the pull rod 2, so that when the pull rod 2 is located between the first edge 60 and the second edge 61, there is a gap 62 between the first edge 60 or the second edge 61 and the side of the pull rod 2. Preferably, for aesthetics, the height of the first edge 60 and the second edge 61 is equal to the thickness of the pull rod 2. Of course, in other embodiments, the height of the first edge 60 and the second edge 61 can also be designed to be greater than or less than the thickness of the pull rod 2, which is within the protection scope of the present invention.

[0032] Furthermore, when the pull rod 2 and the fixing portion 6 make angular motion relative to the slide rail 1 , the gap 62 allows the fixing portion 6 to swing relative to the pull rod 2 .

[0033] Furthermore, the fixing portion 6 includes a first side portion 63 and a second side portion 64 , and a fixing point 65 is provided at the junction of the first side portion 63 and the second side portion 64 .

[0034] Furthermore, the hinge corner portion 3 includes a first surface 30 , a second surface 31 , and an arcuate surface 32 connecting the first surface 30 and the second surface 31 .

[0035] Furthermore, when the pull rod 2 and the slide rail 1 are in a closed state, the fixed point 65 is completely in contact with the arc surface 32 . At this time, the fixed point 65 is completely in contact with the arc surface 32 , so that a certain fixed preload force is generated between the hinge corner portion 3 and the pull rod 2 .

[0036] Furthermore, a first angle is defined between the first side portion 63 and the second side portion 64 , a second angle is defined between the first surface 30 and the second surface 31 , and the first angle is smaller than the second angle.

[0037] In this embodiment, when the pull rod 2 and the hinge corner portion 3 are closed, the second angle is located outside the first angle, and the size of the second angle must be greater than the size of the first angle, so as to ensure that the fixing point 65 of the fixing portion 6 is located within the arc surface 32 of the hinge corner portion 3.

[0038] Furthermore, when the pull rod 2 and the fixing portion 6 make an angular motion relative to the slide rail 1 toward the second surface 31 , the fixing portion 6 first abuts against the first surface 30 , then abuts against the second surface 31 , and finally detaches from the second surface 31 .

[0039] In this embodiment, the pull rod 2 can be changed from a closed state to an unfolded state in two directions. When the pull rod 2 and the fixing portion 6 make an angular motion relative to the slide rail 1 toward the second surface 31, the fixing point 65 of the fixing portion 6 first detaches from the arc surface 32, and then the fixing portion 6 first abuts against the first surface 30. At this time, the pull rod 2 slowly approaches the second edge 61, and then abuts against the second edge 61, so that the first edge 60 and the pull rod 2 have the gap 62, and the pull rod 2 and the fixing portion 6 are not on the same center line, that is, the fixing portion 6 swings relative to the pull rod 2. Then, the fixing portion 6 detaches from the first surface 30, and then the fixing portion 6 abuts against the second surface 31 again, and the first edge 60 and the pull rod 2 maintain the gap 62 until the fixing portion 6 finally detaches from the second surface 31, completing the unfolded state of the pull rod 2.

[0040] Furthermore, when the pull rod 2 and the fixing portion 6 make an angular motion relative to the slide rail 1 toward the first surface 30 , the fixing portion 6 first abuts against the second surface 31 , then abuts against the first surface 30 , and finally detaches from the first surface 30 .

[0041] In this embodiment, when the pull rod 2 changes from a closed state to an unfolded state, when the pull rod 2 and the fixing portion 6 make an angular motion relative to the slide rail 1 toward the direction of the first surface 30, the fixing point 65 of the fixing portion 6 first disengages from the arc surface 32, and then the fixing portion 6 first abuts against the second surface 31. At this time, the pull rod 2 slowly approaches the first edge 60, and then abuts against the first edge 60, so that the second edge 61 and the pull rod 2 have the gap 62, and the pull rod 2 and the fixing portion 6 are not on the same center line, that is, the fixing portion 6 swings relative to the pull rod 2. Then, the fixing portion 6 disengages from the second surface 31, and then the fixing portion 6 abuts against the first surface 30 again, and the second edge 61 and the pull rod 2 maintain the gap 62 until the fixing portion 6 finally disengages from the first surface 30, completing the unfolded state of the pull rod 2.

[0042] Furthermore, when the pull rod 2 and the fixing portion 6 make angular motion relative to the slide rail 1 so that the pull rod 2 is closed relative to the slide rail 1, the fixing portion 6 begins to abut against the first surface 30 or the second surface 31, and finally makes the fixing point 65 completely fit the arc surface 32.

[0043] In this embodiment, the pull rod 2 can be changed from an expanded state to a closed state in two directions. When the pull rod 2 and the fixing portion 6 make angular motion relative to the slide rail 1 toward the second surface 31, the fixing portion 6 moves toward the second surface 31. At this time, the pull rod 2 is separated from the second edge 61 and begins to abut the first edge 60. Then, the fixing portion 6 begins to abut the second surface 31, and along the inclination of the second surface 31, the fixing point 65 is completely fitted in the curved surface 32, and a gap 62 exists between the second edge 61 and the pull rod 2.

[0044] In this embodiment, the pull rod 2 can be changed from an expanded state to a closed state in two directions. When the pull rod 2 and the fixing portion 6 make angular motion relative to the slide rail 1 toward the first surface 30, the fixing portion 6 moves toward the first surface 30. At this time, the pull rod 2 detaches from the first edge 60 and begins to abut the second edge 61. Then, the fixing portion 6 begins to abut the first surface 30, and along the inclination of the first surface 30, the fixing point 65 is completely fitted in the curved surface 32, and a gap 62 exists between the first edge 60 and the pull rod 2.

[0045] In this embodiment, since a fixing portion 6 is further provided at the hinge of the connecting rod 5 and the pull rod 2, when the pull rod 2 and the fixing portion 6 both make angular motions relative to the slide rail 1, whenever the pull rod 2 switches between the closed state and the unfolded state, the fixing portion 6 can swing relative to the pull rod 2. The swinging fixing portion 6 prevents the fixing portion 6 from directly impacting the hinge corner portion 3.

[0046] The window hinge proposed in the present invention can fundamentally solve the problem of the pull rod 2 impacting the hinge corner portion 3, prevent the hinge corner portion 3 from tilting upward, deforming or even loosening, thereby increasing the life of the hinge corner portion 3.

[0047] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A window hinge, characterized in that: The invention comprises a slide rail fixed on the window frame, a pull rod fixed on the window sash, a hinge corner portion fixed at one end of the slide rail, and a sliding portion installed in the slide rail and slidable; a connecting rod hinged to the pull rod at one end and hinged to the sliding portion at the other end; a fixing portion is also clamped at the hinge between the connecting rod and the pull rod, and the pull rod and the fixing portion both make angular motion relative to the slide rail when the sliding portion slides, and during the angular motion, the fixing portion can swing relative to the pull rod, and the pull rod never contacts the hinge corner portion, and when the pull rod and the slide rail are in a closed state, one end of the fixing portion abuts against the hinge corner portion; The fixing portion is provided with a first edge wrapping and a second edge wrapping for wrapping both sides of the pull rod, and a gap is provided between the first edge wrapping or the second edge wrapping and the side of the pull rod; The fixing portion includes a first side portion and a second side portion, and a fixing point is provided at the intersection of the first side portion and the second side portion; The hinge corner portion includes a first surface, a second surface, and an arc surface connecting the first surface and the second surface; When the pull rod and the slide rail are in a closed state, the fixed point is completely in contact with the arc surface; A first angle is defined between the first side portion and the second side portion, a second angle is defined between the first surface and the second surface, and the first angle is smaller than the second angle.

2. The window hinge according to claim 1, characterized in that: When the pull rod and the fixing portion make angular motion relative to the slide rail, the gap allows the fixing portion to swing relative to the pull rod.

3. The window hinge according to claim 1, characterized in that: When the pull rod and the fixing portion make an angular motion relative to the slide rail toward the second surface, the fixing portion first abuts against the first surface, then abuts against the second surface, and finally separates from the second surface.

4. The window hinge according to claim 1, characterized in that: When the pull rod and the fixing portion perform angular motion relative to the slide rail toward the first surface, the fixing portion first abuts against the second surface, then abuts against the first surface, and finally separates from the first surface.

5. The window hinge according to claim 1, characterized in that: When the pull rod and the fixing portion make angular motion relative to the slide rail so that the pull rod is closed relative to the slide rail, the fixing portion begins to abut against the first surface or the second surface, and finally the fixing point is completely fitted to the arc surface.

Images