Downward suspension connecting device for doors and windows

Abstract

According to the door and window suspension connecting device, a door and window comprises a window frame and a window sash, the window sash can be opened and suspended downwards in the window frame through a handle and a right-angle transmission mechanism, and the right-angle transmission mechanism comprises a corner device located on the upper edge of the window sash and a suspension connecting piece connected with the corner device. The lower suspension connecting piece comprises a first connecting rod, a second connecting rod and a third connecting rod which are hinged in sequence, and the third connecting rod and the first connecting rod are arranged at intervals in the length direction of the upper edge and hinged to the upper edge of the window sash; a zigzag-shaped guide groove is formed in the first connecting rod, a sliding block connected in the zigzag-shaped guide groove in a sliding mode is arranged on the corner device, a locking block is detachably connected to the lower portion of the second connecting rod, and the locking block can abut against one side of the sliding block when the window sash is in a closed state. When the sliding block is located at the end, close to the third connecting rod, of the zigzag guide groove, the window sash is in a locked state, the end is the locking end of the zigzag guide groove, the sliding block is tightly squeezed in the locking end through the locking block, and the situation that the window sash and a window frame shake due to long-term collision is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, in particular to a door and window underhang connection device. Background Art

[0002] At present, in order to achieve the effect of safe ventilation, the window sashes of household doors and windows generally have the functions of opening inwards and hanging down. To achieve the hanging down function, the hanging down hardware needs to be installed between the upper part of the window sash and the window frame. Figure 1 and Figure 2 As shown, a transmission rod that can be moved by a handle is set on the outer edge of the window sash. The transmission rod drives the inclined rod of the hanging hardware to work, driving the upper part of the window sash to move inward, thereby realizing the hanging of the window sash.

[0003] The existing inward-opening bottom-hung windows require the handle to be rotated upward to a vertical state before the upper part of the door or window can be opened inward by pulling the handle inward. However, two independent steps are required to open the window sash, which increases the vibration and noise of the window sash during the process of opening and closing the window sash. Moreover, after long-term use, the sealing strip between the window sash and the window frame will be deformed due to frequent collisions, which will cause the window sash and the window frame to shake when closed, affecting the sealing of the window sash. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a door and window underhang connection device.

[0005] The technical solution of this utility model is as follows:

[0006] A door and window underhang connection device is arranged on the door and window, the door and window comprises a window frame and a window sash, the window sash can make the window frame open inward and underhang through a handle and a right-angle transmission mechanism, the right-angle transmission mechanism comprises a corner turner located at the corner of the window sash, the corner turner has an elastic pull tab connected to the handle transmission, the elastic pull tab is connected to a underhang connection piece, the underhang connection piece comprises a first connecting rod and a second connecting rod hinged in sequence, one end of the first connecting rod is arranged near the corner of the window sash and hinged to the upper edge thereof, the other end is hinged to the middle part of the second connecting rod, one end of the second connecting rod is hinged to the window frame through a roller, the other end is movably connected to the upper edge of the window sash through a connection piece, one end of the first connecting rod and the connection piece are arranged along the length direction of the window frame;

[0007] The first connecting rod is located below the second connecting rod, and a folding guide groove is provided on the first connecting rod. A sliding block is provided on the elastic pull tab and is slidably connected to the folding guide groove. A locking block is detachably connected below the second connecting rod, and the lower end surface of the locking block is located above the upper end surface of the first connecting rod. The locking block can be pressed against one side of the sliding block when the window sash is in a closed state.

[0008] When the handle is rotated upward from horizontal, the slider slides in the folded guide groove, the angle between the second connecting rod and the first connecting rod increases, the first connecting rod drives the upper part of the window sash to move inward, and the window sash is converted from inward opening to downward hanging. The inward tilt angle of the upper part of the window sash increases as the angle between the second connecting rod and the first connecting rod increases. There is no need to manually pull the upper part of the window sash inward to achieve downward hanging, which reduces the collision and wear problems between the window sash and the window frame caused by incorrect operation.

[0009] The specific structure of the above-mentioned folding guide groove is that the folding guide groove includes a first guide groove and a second guide groove that are connected. The first guide groove is arranged along the length direction of the first connecting rod and is inclined. The inclination direction is inclined toward the outer side surface of the window sash, so that when the slider moves from the locking end to the other end in the first guide groove, it can drive the upper part of the window frame to tilt inward and open. The end of the first guide groove away from the second guide groove is the locking end, and the end of the second guide groove away from the locking end extends along the opening direction of the lower hanging of the window sash. The opening direction of the second guide groove is coordinated with the lower hanging opening of the window sash, so that when the slider moves from the first guide groove to the second guide groove, the upper part of the window sash can gradually tilt inward and open to be lower hanging.

[0010] In order to achieve that when the slider moves from the first guide groove to the second guide groove, the upper part of the window sash can be tilted and opened to be downwardly suspended at the same time, the included angle between the first guide groove and the second guide groove is set to be between 90° and 180°. The larger the included angle between the first guide groove and the second guide groove, the longer the stroke of the slider, and the longer the stroke of the window sash opened at a certain angle of downward suspension. Conversely, the smaller the included angle between the first guide groove and the second guide groove, the shorter the stroke of the slider, and the faster the opening speed when the downward suspension is opened at the same angle.

[0011] The locking block is arranged in such a position that the length direction of the locking block is consistent with the length direction of the second connecting rod, and the side away from the outer side of the window sash is an inclined surface, which can abut against the sliding block when the sliding block moves to the locking end.

[0012] In order to facilitate the locking block to squeeze the slider at the locking end and prevent the locking block from getting stuck with the slider, the locking block is away from one end of the second connecting rod, and the two side surfaces along its width direction are flat, and the intersection of the flat surface and the inclined surface has a smooth transition.

[0013] To facilitate the installation of the first connecting rod and the third connecting rod on the upper edge of the window sash, a support plate is provided on the upper edge of the window sash. The support plate is located between the window sash and the window frame, above the corner turner, and has a sliding groove along the length direction. The slider is slidably connected in the sliding groove. One end of the first connecting rod is hinged to an end of the support plate close to the corner, and the other end of the third connecting rod is hinged to an end of the support plate away from the corner.

[0014] Regarding the set length of the first connecting rod, the length of the first connecting rod is 0.5 - 0.75 times the length of the second connecting rod, which is convenient for the second connecting rod to be stored under the first connecting rod when the window sash is in the locked state and will not interfere with the window sash and the window frame. One end of the first connecting rod away from the corner is located at the 2 / 3 position of the second connecting rod, and this position is convenient for the second connecting rod to drive the first connecting rod to move inward.

[0015] Regarding the first set structure of the connecting member, the connecting member includes a third connecting rod and a hinge rod. The two ends of the hinge rod are respectively hinged to one end of the second connecting rod away from the roller and one end of the third connecting rod. The other end of the third connecting rod is hinged to the upper edge of the window sash, and the third connecting rod and the hinge rod are arranged vertically.

[0016] The set length of the above-mentioned second connecting rod is such that the length of the second connecting rod is greater than the total length of the first connecting rod, the third connecting rod and the hinge rod, which is convenient for adjusting the hinge position of the first connecting rod on the second connecting rod and can realize the adjustment of the size of the lower-hung angle of the window sash.

[0017] Regarding the second set structure of the connecting member, the connecting member includes a plate body provided with an arc-shaped groove, and the arc-shaped groove is matched with the movement track of one end of the second connecting rod away from the roller. Compared with the first set structure, the plate body provided with the arc-shaped groove can reduce the overlapping thickness when the third connecting rod and the hinge rod are hinged and can also avoid interference when the third connecting rod and the hinge rod rotate.

[0018] The beneficial effects of the present utility model are as follows.

[0019] By changing the angle of the handle, it can drive the right-angle transmission structure to move in different directions on the outer frame of the window sash. The angulator of the right-angle transmission structure can drive the lower-hung connecting member to act. When the slider is located at one end of the folded guide groove close to the third connecting rod, the window sash is in the locked state, and this end is the locking end of the folded guide groove, and the slider is squeezed tightly in the locking end by the locking block, solving the problem that the hinge positions of the first connecting rod, the third connecting rod and the hinge rod are not tightly locked due to wear gaps during long-term use.

[0020] When the handle rotates from the downward vertical position to the horizontal position, the slider moves from the locking end to the middle of the folded guide groove under the drive of the angulator, and the window sash moves inward to release the lock and can be pushed and pulled open; when the handle rotates from the horizontal state to the upward vertical position, during the rotation process, the upper end of the window sash slowly opens to the lower-hung state as the slider moves along the folded guide groove, and the window sash can be opened to the lower-hung state by only rotating the handle in one step, solving the problem of incorrect operation.

[0021] Set the included angle between the first guide groove and the second guide groove to be between 90° and 180°. When the included angle between the first guide groove and the second guide groove is larger, the stroke of the slider is longer, and the stroke of the lower sash opening at a certain angle is longer. Conversely, when the included angle between the first guide groove and the second guide groove is smaller, the stroke of the slider is shorter. For the same opening angle of the lower sash, the stroke is shorter and the opening speed is faster. When the slider moves from the first guide groove to the second guide groove, the upper part of the sash can be tilted and opened as a lower sash simultaneously, reducing the steps of pulling and pushing the sash outward and inward, and reducing the phenomenon of collision and wear between the sash and the window frame caused by incorrect operation. Description of the Drawings

[0022] In the drawings:

[0023] Figure 1 is a schematic structural diagram of the prior art;

[0024] Figure 2 is a schematic structural diagram of the prior art lower sash hardware;

[0025] Figure 3 is a schematic structural diagram of the lower sash state of the first embodiment of the present invention;

[0026] Figure 4 is Figure 1 the enlarged structural diagram at A in

[0027] Figure 5 is the first structural diagram of the lower sash state of the lower sash hardware of the first embodiment of the present invention;

[0028] Figure 6 is the second structural diagram of the lower sash state of the lower sash hardware of the first embodiment of the present invention;

[0029] Figure 7 is the partial cross-sectional structural diagram of the lower sash hardware in the closed state of the first embodiment;

[0030] Figure 8 is the structural diagram of the lower sash hardware in the inward-opening state of the first embodiment;

[0031] Figure 9 is the structural diagram of the lower sash state of the lower sash hardware of the second embodiment;

[0032] The components represented by the reference numerals in the drawings are:

[0033] 1, window frame; 2, sash; 3, corner fitting; 4, first connecting rod; 41, first guide groove; 42, second guide groove; 43, locking end; 5, second connecting rod; 6, third connecting rod; 7, hinge rod; 8, slider; 9, locking block; 91, inclined surface; 92, flat surface; 10, support plate; 101, sliding groove; 11, handle; 12, roller; 13, plate body; 131, arc groove. DETAILED DESCRIPTION

[0034] Example 1, see Figure 3 A door and window down-hanging connection device shown is arranged on the door and window, and the door and window include a window frame 1 and a window sash 2. The window sash 2 can make the window frame 1 open inward and hang down through a handle and a right-angle transmission mechanism. The right-angle transmission mechanism includes a corner turner 3 located at the upper edge of the window sash 2. An elastic pull tab 31 is arranged in the corner turner 3. The elastic pull tab 31 is transmission-connected to the handle 11. The switching angle of the handle 11 can control the elastic pull tab 31 to move in two directions, and the moving direction is along the outer edge of the window sash 2. This is the prior art.

[0035] The elastic pull tab 31 of the utility model is connected with a lower hanging connecting piece, which is connected to the elastic pull tab 31 of the corner turner 3. The lower hanging connecting piece includes a first connecting rod 4, a second connecting rod 5, a hinged rod 7 and a third connecting rod 6 which are hinged in sequence. One end of the first connecting rod 4 is arranged near the corner of the window sash 2 and is hinged to its upper edge, and the other end is hinged to the middle part of the second connecting rod 5. One end of the second connecting rod 5 is hinged to the window frame 1 through a roller 12, and the other end is hinged to one end of the third connecting rod 6 through the hinged rod 7. The hinged rod 7 is arranged below the second hinged rod 5, and the two ends of the hinged rod 7 are hinged to one end of the second hinged rod 5 and the third hinged rod 6 respectively. The other end of the third connecting rod 6 is spaced apart from one end of the first connecting rod 4 along the upper length direction and is hinged to the upper edge of the window sash 2.

[0036] Among them, a support plate 10 is provided on the upper edge of the above-mentioned window sash 2 along its length direction. The support plate 10 is located between the window sash 2 and the window frame 1, above the corner turner 3, and does not interfere with the transmission rod 3. A sliding groove 101 is opened in the middle part of the corner turner 3 along the length direction. The slider 8 is slidably connected in the sliding groove 101. One end of the first connecting rod 4 is hinged to the end of the support plate 10 close to the corner of the window sash, and the other end of the third connecting rod 6 is hinged to the end of the support plate 10 away from the corner. The first connecting rod 4 and the third connecting rod 6 are installed on the window sash 2 through the support plate 10 to reduce damage to the punching connection of the window sash 2.

[0037] The first connecting rod 4 is located below the second connecting rod 5. A folding guide groove is provided on the first connecting rod 4. A slider 8 is provided on the corner turner 3 and is slidably connected to the folding guide groove. The height of the slider 8 is higher than the upper end surface of the folding guide groove. A locking block 9 is detachably connected below the second connecting rod 5. The locking block 9 can be pressed against one side of the slider 8 when the window sash 2 is in a closed state.

[0038] The specific structure of the above-mentioned folded guide groove is that the folded guide groove includes a first guide groove 41 and a second guide groove 42 which are connected. The first guide groove 41 is arranged along the length direction of the first connecting rod 4 and is inclined, and the inclined direction is inclined towards the outer side of the window sash 2. When the slider 8 moves in the first guide groove 41 from the locking end 43 to the other end, it can drive the upper part of the window frame 1 to tilt inwards and open. One end of the first guide groove 41 far from the second guide groove 42 is the locking end 43, and one end of the second guide groove 42 far from the locking end 43 extends along the opening direction of the lower suspension of the window sash 2. In order to enable the upper part of the window sash to tilt and open as a lower suspension simultaneously when the slider 8 moves from the first guide groove 41 to the second guide groove 42, the included angle between the first guide groove 41 and the second guide groove 42 is between 90° and 180°. The included angle between the first guide groove 41 and the second guide groove 42 is larger, the stroke of the slider 8 is longer, and the stroke of the window sash 2 opening at a certain lower suspension angle is longer. On the contrary, the included angle between the first guide groove 41 and the second guide groove 42 is smaller, the stroke of the slider 8 is shorter, and for opening the same angle of lower suspension, the stroke is shorter and the opening speed is faster.

[0039] According to the above structure, the three states of this embodiment are as follows. When the window sash 2 is in the locked state in this embodiment, the handle is in the vertically downward state. For the state of the lower suspension hardware, refer to Figure 7 as shown. The inclined surface 91 of the locking block 9 can squeeze the slider 8 tightly in the locking end 43; when the handle 2 rotates from the vertically downward state to the horizontal state, it is an inward-opening window sash 2. For the state of the lower suspension hardware, refer to Figure 8 as shown. The slider 8 moves in the direction away from the locking end 43 to the other end of the first guide groove 41 and is located between the first guide groove 41 and the second guide groove 42. At this time, the slider 8 disengages from the locking block 9, and the window sash 2 moves outwards by about 5 mm from the window frame. The displacement distance is determined according to the inclination angle of the first guide groove 41, and the window sash 2 can be normally opened inwards from the side of the handle 2; when the handle 2 rotates from the horizontal state to the vertically upward state, for the state of the lower suspension hardware, refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 as shown. The slider 8 and the first connecting rod 4 act simultaneously, and the first connecting rod 4 and the second connecting rod 5 can have the maximum included angle, and gradually move from the other end of the first guide groove 41 to the second guide groove 42. The upper part of the window sash 2 gradually tilts inwards to form a lower suspension.

[0040] Refer to Figure 5As shown in the figure, regarding the set length of the first connecting rod 4, the length of the first connecting rod 4 is 0.5 - 0.75 times the length of the second connecting rod 5, which is convenient for the second connecting rod 5 to be stored below the first connecting rod 4 when the window sash 2 is in the locked state and will not interfere with the window sash 2 and the window frame 1. One end of the first connecting rod 4 far from the corner is located at the 2 / 3 position of the second connecting rod 5, and this position is convenient for the second connecting rod 5 to drive the first connecting rod 4 to move inward. The set length of the above-mentioned second connecting rod 5 is such that the length of the second connecting rod 5 is greater than the total length of the first connecting rod 4, the third connecting rod 6, and the hinge rod 7, which is convenient for adjusting the hinge position of the first connecting rod 4 on the second connecting rod 5 and can realize adjusting the size of the lower-hung angle of the window sash 2.

[0041] The set position of the above-mentioned locking block 9 is such that the length direction of the locking block 9 is the same as the length direction of the second connecting rod 5. The locking block 9 is in a triangular or isosceles trapezoidal structure, its tip or upper base is close to the hinge position of the second connecting rod 5 and the window frame 1, and the side away from the outer side of the window sash 2 is an inclined surface 91, and the inclined surface 91 can be in contact with the sliding block 8 when the sliding block 8 moves to the locking end. The locking block 9 of this embodiment is in an isosceles trapezoidal structure. After long-term wear between one inclined surface 91 of the locking block 9 and the sliding block 8, the other inclined surface 91 can be replaced without replacing the entire locking block 9. And to facilitate the locking block 9 to be able to tightly squeeze the sliding block 8 at the locking end and also to facilitate the locking block 9 not to get stuck with the sliding block 8, both side surfaces of the locking block 9 away from the second connecting rod 5 along its width direction are flat surfaces 92, and the junction of the flat surface 92 and the inclined surface 91 is smoothly transitioned.

[0042] Embodiment 2: Refer to Figure 9 As shown in the figure, the difference between Embodiment 2 and Embodiment 1 is that the connecting member in Embodiment 2 is different from that in Embodiment 1. The connecting member in Embodiment 2 includes a plate body 13 provided with an arc-shaped groove 131, and the arc-shaped groove 131 is matched with the movement track of the end of the second connecting rod 5 far from the roller 12. Compared with the structure of the connecting member in Embodiment 1, the plate body provided with the arc-shaped groove 121 can reduce the stacking thickness when the third connecting rod 6 and the hinge rod 7 are hinged and can also avoid interference when the third connecting rod 6 and the hinge rod 7 rotate.

Claims

1. A door and window underhang connection device, arranged on the door and window, wherein the door and window comprises a window frame (1) and a window sash (2), the window sash (2) can make the window frame (1) open inward and underhang through a handle (11) and a right-angle transmission mechanism, the right-angle transmission mechanism comprises a corner turner (3) located at the corner of the window sash (2), the corner turner (3) has an elastic pull tab (31) which is transmission-connected to the handle (11), and is characterized in that: A lower suspension connecting member is connected to the elastic pull tab (31). The lower suspension connecting member includes a first connecting rod (4) and a second connecting rod (5) that are sequentially hinged. One end of the first connecting rod (4) is disposed near the corner of the window sash (2) and is hinged to its upper edge, and the other end is hinged to the middle of the second connecting rod (5). One end of the second connecting rod (5) is hinged to the window frame (1) through a roller (12), and the other end is movably connected to the upper edge of the window sash (2) through a connecting member. One end of the first connecting rod (4) and the connecting member are arranged along the length direction of the window frame where they are located; A folded guiding groove is formed in the first connecting rod (4). A sliding block (8) that is slidably connected in the folded guiding groove is provided on the elastic pull tab (31). A locking block (9) is detachably connected below the second connecting rod (5). The lower end surface of the locking block (9) is located above the upper end surface of the first connecting rod (4). The locking block (9) can be pressed against one side of the sliding block (8) when the window sash (2) is in the closed state.

2. The underhung connection device for doors and windows according to claim 1, characterized in that, The folded guiding groove includes a first guiding groove (41) and a second guiding groove (42) that are communicated. The first guiding groove (41) is arranged along the length direction of the first connecting rod (4) and is inclined. One end of the first guiding groove (41) away from the second guiding groove (42) is a locking end (43). One end of the second guiding groove (42) away from the locking end (43) extends along the opening direction of the window sash (2) in the lower suspension state.

3. The under-hung connection device for doors and windows according to claim 2, characterized in that, The included angle between the first guiding groove (41) and the second guiding groove (42) is between 90° and 180°.

4. The underhung connection device for doors and windows according to claim 2, characterized in that The length direction of the locking block (9) is the same as the length direction of the second connecting rod (5), and one side away from the outer side surface of the window sash (2) is an inclined surface (91). The inclined surface (91) can be in contact with the sliding block (8) when the sliding block (8) moves to the locking end.

5. The window and door bottom-hung connecting device according to claim 1, characterized in that, On both side surfaces of the locking block (9) away from the second connecting rod (5) along its width direction are flat surfaces (92), and the transition between the flat surfaces (92) and the inclined surface (91) is smooth.

6. The underhung connection device for doors and windows according to claim 1, characterized in that, A support plate (10) is provided on the upper edge of the window sash (2), above the corner hinge (3). A sliding groove (101) is formed along the length direction. The sliding block (8) is slidably connected in the sliding groove (101). One end of the first connecting rod (4) is hinged to one end of the support plate (10) near the corner, and the other end of the third connecting rod (6) is hinged to the other end of the support plate (10) away from the corner.

7. A kind of lower-hung connection device for doors and windows according to claim 1, characterized in that, The length of the first connecting rod (4) is 0.5 - 0.75 times the length of the second connecting rod (5), and the end of the first connecting rod (4) away from the corner is located at the 2 / 3 position of the second connecting rod (5).

8. A window and door underhung connection device according to claim 1, characterized in that, The connecting member includes a third connecting rod (6) and a hinge rod (7). Two ends of the hinge rod (7) are respectively hinged to one end of the second connecting rod (5) away from the roller (12) and one end of the third connecting rod (6). The other end of the third connecting rod (6) is hinged to the upper edge of the window sash (2).

9. The underhung connection device for doors and windows according to claim 8, characterized in that, The length of the second connecting rod (5) is greater than the total length of the first connecting rod (4), the third connecting rod (6), and the hinge rod (7).

10. The underhung connection device for doors and windows according to claim 1, characterized in that, The connecting member includes a plate body (13) provided with an arc-shaped groove (131). The arc-shaped groove (131) is matched with the movement track of one end of the second connecting rod (5) away from the roller (12).

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