Hinge applied to inward tilt-turn window

Abstract

The utility model relates to the technical field of window hardware, in particular to a hinge applied to an inward tilt-turn window, which comprises a fixed seat, a movable rod and a connecting rod assembly, the fixed seat is connected with a window frame, the movable rod is connected with a window sash, and the window sash is opened at different angles through the movement of the connecting rod assembly; specifically, a sliding groove is formed in the fixed seat, a sliding block is arranged in the sliding groove, the movable rod is hinged to the sliding block through a connecting rod assembly, when the movable rod is opened and closed relative to the fixed seat, the sliding block slides along the sliding groove, and meanwhile a limiting ejector block is arranged in the sliding groove; when the limiting top block is arranged, the sliding stroke of the sliding block is limited, and the opening and closing angle of the hinge is 90 degrees, otherwise, the limiting top block is cancelled, and the opening and closing angle of the hinge is 180 degrees; the adaptability of the hinge is improved; in addition, the multiple rotary locking assemblies are arranged on the fixing base and can protrude out of the side wall of the fixing base to abut against the window frame, and the stress performance and the structural strength of the hinge are improved.

Description

Technical Field

[0001] This utility model relates to the field of window hardware technology, and in particular to a hinge used in inward-opening tilt-and-turn windows. Background Technology

[0002] Inward-opening tilt-and-turn windows have three usage states: locked, casement, and tilt-and-turn. The three usage states can be switched by rotating the window handle and activating the internal hardware structure. Due to their multiple functions, inward-opening tilt-and-turn windows are widely favored by the market.

[0003] Existing inward-opening tilt-and-turn window hinges are mainly fixed to the window frame using swivels and screws. When bearing weight, only the swivels bear the force, resulting in insufficient strength. In addition, the hinges are fixed to an opening angle of 90° or 180°, and cannot accommodate both opening angles, thus limiting the applicable range of the hinges. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a hinge for use in inward-opening tilt-and-turn windows.

[0005] The present invention adopts the following technical solution:

[0006] A hinge for an inward-opening tilt-and-turn window includes a fixed base, a movable rod, and a connecting rod assembly. The connecting rod assembly connects the fixed base and the movable rod, with the movable rod protruding outward from the fixed base under the support of the connecting rod assembly. The fixed base has a sliding groove, within which a slider is slidably connected. The movable rod is connected to the slider via the connecting rod assembly. When the movable rod opens or closes relative to the fixed base, the slider slides along the sliding groove. A detachably connected limiting block is provided within the sliding groove. The limiting block restricts the sliding stroke of the slider along the sliding groove, thereby limiting the opening angle of the movable rod. The fixed base has multiple rotating locking assemblies. The rotating locking assemblies rotate and protrude from the side wall of the fixed base to lock the fixed base.

[0007] Preferably, the fixed base includes a sliding rod and a fixed rod disposed at the lower end of the sliding rod; the sliding rod is provided with a vertical groove extending along the length direction of the sliding rod, and the fixed rod is provided with a clearance groove extending along the length direction of the fixed rod; the vertical groove and the clearance groove are aligned and arranged, and the vertical groove and the clearance groove constitute the sliding groove; the limiting top block is disposed in the clearance groove, and the top of the limiting top block is engaged in the vertical groove; the slider is disposed in the clearance groove, and the top of the slider is engaged in the vertical groove.

[0008] Preferably, the slider includes an integrally formed sliding body and a guide block, the guide block being disposed on the top of the sliding body; the width of the guide block is smaller than the width of the sliding body, and the width of the guide block is the same as the width of the vertical groove; the sliding body is slidably connected to the clearance groove, and the guide block is engaged in the vertical groove.

[0009] Preferably, the rotary locking assembly includes a fixing rivet and a fixing disc; the bottom of the fixing rod is provided with a laterally open movable groove, the fixing disc is rotatably connected in the movable groove, the fixing rivet vertically passes through the sliding rod and the fixing rod, and the bottom of the fixing rivet is fixedly connected to the fixing disc; rotating the fixing rivet drives the fixing disc to rotate, so that the fixing disc protrudes from the lateral opening of the movable groove, thereby locking the fixing seat.

[0010] Preferably, the sidewall of the movable groove includes an abutment plane and a guide surface. The abutment plane is perpendicular to the lower end face of the fixed rod and extends along the length direction of the fixed seat. The guide surface is perpendicular to the lower end face of the fixed rod and has an arc-shaped structure. The sidewall of the fixed rotor is provided with a limiting part and a guiding part. When the fixed rotor is retracted into the movable groove, the limiting part is in contact with the abutment plane. When the fixed rotor rotates, the guide part abuts against the guide surface, and the guide surface guides the rotation of the fixed rotor.

[0011] Preferably, the fixing blade has a mounting hole, and the mounting hole has symmetrically distributed first flat positions; the side wall of the fixing rivet has bilaterally symmetrical second flat positions; when the fixing rivet is inserted into the mounting hole, the first flat positions and the second flat positions cooperate.

[0012] Preferably, the top of the slide bar is provided with two reinforcing ribs located on both sides of the slide groove, and the reinforcing ribs are arranged parallel to the slide groove.

[0013] Preferably, one end of the upper surface of the slide bar is provided with a mounting arm, the mounting arm is perpendicular to the slide bar, and the mounting arm is provided with a clamping piece.

[0014] Preferably, the linkage assembly includes a first linkage, a second linkage, and a third linkage; the first linkage and the second linkage are arranged intersectingly and hinged to each other; the two ends of the first linkage are respectively hinged to the slider and the third linkage; the two ends of the second linkage are respectively hinged to the fixed seat and the movable rod; the third linkage is respectively hinged to the movable rod and the first linkage.

[0015] Preferably, the movable rod is provided with a mounting block.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model relates to a hinge for inward-opening tilt-and-turn windows, comprising a fixed base, a movable rod, and a connecting rod assembly. The fixed base is connected to the window frame, and the movable rod is connected to the window sash. The movement of the connecting rod assembly allows the window sash to open at different angles. Specifically, the fixed base has a sliding groove containing a slider. The movable rod is hinged to the slider via the connecting rod assembly. When the movable rod opens or closes relative to the fixed base, the slider slides along the sliding groove. A limiting block is also provided within the sliding groove. When the limiting block is present, the sliding stroke of the slider is restricted, and the hinge opening angle is 90°. Conversely, without the limiting block, the hinge opening angle is 180°, improving the hinge's adaptability. Furthermore, the fixed base has multiple rotating locking components that protrude from the side wall of the fixed base and abut against the window frame, improving the hinge's load-bearing capacity and structural strength. The fixed base also has reinforcing ribs to improve its bending resistance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hinge structure of the present invention applied to an inward-opening tilt-and-turn window;

[0019] Figure 2 for Figure 1 A bottom view of the hinge;

[0020] Figure 3 for Figure 2 A schematic diagram of the partial structure of circle B in the middle;

[0021] Figure 4 for Figure 1 A top view of the hinge;

[0022] Figure 5 for Figure 4 The hinge is shown in the cross-sectional view along AA;

[0023] Figure 6 for Figure 5 A schematic diagram of the partial structure of the middle circle C;

[0024] Figure 7 This is an exploded view of the hinge structure of the present invention applied to an inward-opening tilt-and-turn window;

[0025] Figure 8 for Figure 7 A schematic diagram of the structure explosion after the hinge is used as a further structural explosion.

[0026] Figure 9 This is a reference diagram showing the usage state of the hinge of this utility model applied to an inward-opening tilt-and-turn window;

[0027] Figure 10 This is a reference diagram showing the usage state of the hinge with the removal of the limiting block in the inward-opening tilt-and-turn window of this utility model.

[0028] Figure 11 A reference diagram showing the usage state of the limit block for the hinge of the present invention applied to an inward-opening tilt-and-turn window;

[0029] Figure 12 This is a reference diagram showing the inward-folding hinge of the present invention applied to an inward-opening tilt-and-turn window in its retracted state.

[0030] Figure 13 This is a reference diagram showing the hinge of this utility model in the inward-opening tilt-and-turn window in the outward-rotated state.

[0031] Numbering on the map:

[0032] 10-Fixed base; 11-Slide groove; 12-Slide groove rod; 121-Vertical groove; 122-Reinforcing rib; 123-Mounting arm; 124-Clamping piece; 13-Fixed rod; 131-Clearing groove; 132-Movable groove; 1321-Abutting plane; 1322-Guide surface; 20-Movable rod; 21-Mounting block; 211-First adjusting groove; 212-Second adjusting groove; 30-Linkage assembly; 31-First connecting rod; 32-Second connecting rod; 33-Third connecting rod; 40-Slider; 41-Sliding body; 42-Guide block; 50-Limiting top block; 60-Rotary locking assembly; 61-Fixing rivet; 611-Second flat position; 62-Fixing rotating piece; 621-Limiting part; 622-Guide part; 623-Mounting hole; 624-First flat position;

[0033] 200 - Window frame; 300 - Window sash. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] like Figures 1 to 13 As shown, this utility model relates to a hinge for an inward-opening tilt-and-turn window, comprising a fixed base 10, a movable rod 20, and a connecting rod assembly 30. The connecting rod assembly 30 connects the fixed base 10 and the movable rod 20, with the movable rod 20 protruding outward from the fixed base 10 under the support of the connecting rod assembly 30. The fixed base 10 is connected to the window frame 200, and the movable rod 20 is connected to the window sash 300. The movement of the connecting rod assembly 30 allows the window sash 300 to open at different angles relative to the window frame 200. A sliding groove 11 is provided on the fixed base 10, and a slider 40 is slidably connected to it within the sliding groove 11. The movable rod 20 is connected to the slider 40 via the connecting rod assembly 30. When the movable rod 20 opens or closes relative to the fixed base 10, the slider 40 slides along the sliding groove 11. A detachably connected limiting block 50 is provided within the sliding groove 11 to limit the sliding stroke of the slider 40 along the sliding groove 11, thereby limiting the opening and closing angle of the movable rod 20. Multiple rotary locking assemblies 60 are provided on the fixed base 10. The rotary locking assemblies 60 rotate and protrude from the side wall of the fixed base 10 to lock the fixed base 10. The connecting rod assembly 30 includes a first connecting rod 31, a second connecting rod 32, and a third connecting rod 33. The first connecting rod 31 and the second connecting rod 32 are arranged crosswise and hinged to each other. The two ends of the first connecting rod 31 are respectively hinged to the slider 40 and the third connecting rod 33. The two ends of the second connecting rod 32 are respectively hinged to the fixed base 10 and the movable rod 20. The third connecting rod 33 is respectively hinged to the movable rod 20 and the first connecting rod 31.

[0038] Please see Figure 11 A limit block 50 is provided inside the slide groove 11, which restricts the sliding stroke of the slider 40 along the slide groove 11. At this time, the maximum opening angle of the movable rod 20 and the window sash 300 is 90°; please refer to Figure 12 The limiting block 50 within the slide groove 11 is removed, allowing the slider 40 to slide freely along the slide groove 11. At this point, the maximum opening angle of the movable rod 20 and the window sash 300 is 180°. By setting or removing the limiting block 50, the hinge opening angle can be switched between 90° and 180°. During production, the setting of the limiting block 50 can be selected based on usage requirements and the hinge opening angle, thus reducing inventory pressure.

[0039] Please see Figure 12When the rotary locking assembly 60 is in the retracted position, it does not protrude from the side wall of the fixing base 10. The overall width of the hinge is smaller than the width of the slot, allowing the hinge to be inserted parallel to the slot, facilitating hinge installation. Please refer to [link / reference]. Figure 13 When the rotary locking component 60 is in the unscrewed state, it protrudes from the side wall of the fixed seat 10 and abuts against the side wall of the slot, thereby locking the fixed seat 10 and providing support. In addition, since multiple rotary locking components 60 are provided, multiple force points are provided.

[0040] Please see Figure 7 and Figure 8 The fixed base 10 includes a sliding rod 12 and a fixed rod 13 located at the lower end of the sliding rod 12. The sliding rod 12 has a vertical groove 121 extending along its length. The fixed rod 13 has a clearance groove 131 extending along its length. The clearance groove 131 and the vertical groove 121 are aligned vertically, and together they form the sliding groove 11. A limiting top block 50 is located in the clearance groove 131, and the top of the limiting top block 50 is engaged in the vertical groove 121. A slider 40 is located in the clearance groove 131, and the top of the slider 40 is engaged in the vertical groove 121. This restricts the limiting top block 50 and the slider 40 to always move linearly along the sliding groove 11.

[0041] Two reinforcing ribs 122 are provided at the top of the slide bar 12, located on both sides of the slide groove 11. The reinforcing ribs 122 are arranged parallel to the slide groove 11. Please refer to [link / reference]. Figure 5 and Figure 6 The reinforcing ribs 122 on both sides protrude, creating a gap between the bottom surface of the first connecting rod 31 and the top surface of the sliding rod 12. The ribs, the bottom surface of the first connecting rod 31, and the top surface of the sliding rod 12 form a cavity that can accommodate lubricating grease, reducing the coefficient of friction and improving product life. One end of the upper surface of the sliding rod 12 is also provided with a mounting arm 123, which is perpendicular to the sliding rod 12. The mounting arm 123 is equipped with a clamping plate 124. The mounting arm 123 is connected to the window frame 200 by fasteners such as rivets, and the clamping plate 124 provides installation stability.

[0042] The bottom of the fixed rod 13 is provided with a side-opening movable groove 132 for accommodating the rotary locking assembly 60. Further, the sidewall of the movable groove 132 includes an abutment plane 1321 and a guide surface 1322; the abutment plane 1321 is perpendicular to the lower end face of the fixed rod 13 and extends along the length of the fixed base 10; the guide surface 1322 is perpendicular to the lower end face of the fixed rod 13 and has an arc-shaped structure.

[0043] Please see Figure 1The movable rod 20 is equipped with a mounting block 21, which is used to connect with the window sash 300. Specifically, the mounting block 21 has a symmetrically distributed first adjustment groove 211 and a second adjustment groove 212, and a locking hole is provided in the first adjustment groove 211. When the window sash 300 is connected to the mounting block 21, the window sash 300 slides vertically into the first adjustment groove 211 and the second adjustment groove 212, and the window sash 300 can move vertically relative to the first adjustment groove 211 to adjust the height of the window sash 300. Then, fasteners such as rivets and bolts are screwed into the locking hole to complete the installation of the window sash 300 and the mounting block 21.

[0044] Please see Figure 8 The slider 40 includes an integrally formed sliding body 41 and a guide block 42. A guide portion 622 is located on the top of the sliding body 41. The width of the guide block 42 is smaller than the width of the sliding body 41, and the width of the guide block 42 is the same as the width of the vertical groove 121. After the slider 40 is assembled into the slide groove 11, the sliding body 41 is slidably connected in the clearance groove 131, and the guide block 42 is engaged in the vertical groove 121. The guide block 42 and the vertical groove 121 cooperate to guide the sliding of the slider 40. The width of the sliding body 41 is greater than the width of the guide block 42, which can increase the width of the slider 40. At the same time, the slide groove rod 12 and the fixing rod 13 can clamp the sliding body 41, ensuring the sliding connection between the slider 40 and the slide groove 11, and effectively improving the stress strength of the hinge.

[0045] Please see Figure 1 , Figure 7 and Figure 8 The rotary locking assembly 60 includes a fixing rivet 61 and a fixing disc 62. The fixing disc 62 is rotatably connected to the movable groove 132 at the bottom of the fixing rod 13. The fixing rivet 61 vertically passes through the sliding rod 12 and the fixing rod 13. The bottom of the fixing rivet 61 is fixedly connected to the fixing disc 62, and the top of the fixing rivet 61 passes through the upper end face of the sliding rod 12 and protrudes. In use, the fixing rivet 61 is rotated with a wrench to drive the fixing disc 62 to rotate, causing the fixing disc 62 to protrude from the lateral opening of the movable groove 132, thereby locking the fixing seat 10.

[0046] Specifically, the side wall of the fixed rotating plate 62 is provided with a limiting part 621 and a guiding part 622, such as Figure 3As shown, when the fixed rotor 62 is retracted into the movable groove 132, the limiting part 621 fits against the abutting surface 1321; when the fixed rotor 62 rotates, the guide part 622 abuts against the guide surface 1322. Through the cooperation between the guide part 622 and the guide surface 1322, the rotation of the fixed rotor 62 is guided, improving the movement stability of the fixed rotor 62. The fixed rotor 62 is provided with a mounting hole 611, and the mounting hole 611 is provided with symmetrically distributed first flat positions 624. The side wall of the fixing rivet 61 is provided with bilaterally symmetrical second flat positions 611; when the fixing rivet 61 is inserted into the mounting hole 611, the first flat positions 624 and the second flat positions 611 cooperate to realize the synchronous rotation of the fixing rivet 61 and the fixed rotor 62.

[0047] Compared to existing technologies, the hinge of this utility model for an inward-opening tilt-and-turn window includes a fixed base 10, a movable rod 20, and a connecting rod assembly 30. The fixed base 10 is connected to the window frame 200, and the movable rod 20 is connected to the window sash 300. The movement of the connecting rod assembly 30 allows the window sash 300 to open at different angles. Specifically, the fixed base 10 is provided with a sliding groove 11, and a slider 40 is provided in the sliding groove 11. The movable rod 20 is hinged to the slider 40 through the connecting rod assembly 30. When the movable rod 20 opens or closes relative to the fixed base 10, the slider 40 moves along the sliding groove 11. The sliding block 40 is slidable, and a limiting block 50 is provided in the sliding groove 11. When the limiting block 50 is provided, the sliding stroke of the slider 40 is limited, and the opening and closing angle of the hinge is 90°. Conversely, when the limiting block 50 is removed, the opening and closing angle of the hinge is 180°, which improves the adaptability of the hinge. In addition, multiple rotating locking components 60 are provided on the fixed base 10. The rotating locking components 60 can protrude from the side wall of the fixed base 10 and abut against the window frame 200, which improves the load-bearing performance and structural strength of the hinge. The fixed base 10 is also provided with reinforcing ribs 122 to improve the bending resistance of the fixed base 10.

[0048] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A hinge for an in-swinging casement window, characterised in that, The utility model provides a fixed seat, movable rod and connecting rod assembly, the connecting rod assembly is connected with the fixed seat and movable rod respectively, the movable rod protrudes outside the fixed seat under the support of the connecting rod assembly, the fixed seat is equipped with sliding slot, the sliding slot is equipped with sliding block in sliding connection with it, the movable rod is connected with the sliding block through the connecting rod assembly, when the movable rod opens and shuts relative to the fixed seat, the sliding block slides along the sliding slot, the sliding slot is equipped with detachable limiting top block, the limiting top block is used for limiting the sliding stroke of the sliding block along the sliding slot, to limit the opening and closing angle of the movable rod, the fixed seat is equipped with a plurality of rotary locking assemblies, the rotary locking assemblies rotate and protrude the lateral wall of the fixed seat to lock the fixed seat.

2. The hinge for an in-swinging casement window according to claim 1, wherein The fixed seat includes a sliding slot rod and a fixed rod provided at the lower end of the sliding slot rod. The sliding slot rod is provided with a vertical slot extending along the length direction of the sliding slot rod. The fixed rod is provided with an avoidance slot extending along the length direction of the fixed rod. The vertical slot and the avoidance slot are arranged in alignment. The vertical slot and the avoidance slot constitute the sliding slot. The limiting top block is arranged in the avoidance slot. The top of the limiting top block is clamped in the vertical slot. The sliding block is arranged in the avoidance slot. The top of the sliding block is clamped in the vertical slot.

3. The hinge for an in-swinging casement window according to claim 2, wherein The sliding block includes an integrally formed sliding body and a guide block. The guide block is arranged at the top of the sliding body. The width of the guide block is smaller than the width of the sliding body. The width of the guide block is consistent with the width of the vertical slot. The sliding body is in sliding connection with the avoidance slot. The guide block is clamped in the vertical slot.

4. The hinge for an in-swinging casement window according to claim 2, wherein The rotary locking assembly includes a fixed rivet and a fixed rotating piece. The bottom of the fixed rod is provided with a lateral opening movable slot. The fixed rotating piece is in rotational connection with the movable slot. The fixed rivet vertically penetrates the sliding slot rod and the fixed rod. The bottom of the fixed rivet is fixedly connected with the fixed rotating piece. The fixed rivet is rotated to drive the fixed rotating piece to rotate, so that the fixed rotating piece protrudes from the lateral opening of the movable slot to achieve the locking of the fixed seat.

5. The hinge for an in-swinging casement window according to claim 4, wherein The lateral wall of the movable slot includes an abutting plane and a guide surface. The abutting plane is perpendicular to the lower end surface of the fixed rod and extends along the length direction of the fixed seat. The guide surface is perpendicular to the lower end surface of the fixed rod and is in an arc structure. The lateral wall of the fixed rotating piece is provided with a limiting portion and a guide portion. When the fixed rotating piece is retracted into the movable slot, the limiting portion is in abutment with the abutting plane. When the fixed rotating piece is rotated, the guide portion is in abutment with the guide surface. The guide surface plays a guiding role in the rotation of the fixed rotating piece.

6. The hinge for an in-swinging casement window according to claim 4, wherein The fixed rotating piece is provided with a mounting hole. The mounting hole is provided with symmetrically distributed first flat surfaces. The lateral wall of the fixed rivet is provided with symmetrically distributed second flat surfaces. When the fixed rivet is inserted into the mounting hole, the first flat surfaces are matched with the second flat surfaces.

7. The hinge for an in-swinging casement window according to claim 2, wherein The top of the sliding slot rod is provided with two reinforcing ribs arranged on both sides of the sliding slot. The reinforcing ribs are arranged in parallel with the sliding slot.

8. The hinge for an in-swinging casement window according to claim 1, wherein One end of the upper end surface of the chute lever is provided with a mounting arm, the mounting arm is perpendicular to the chute lever, and the mounting arm is provided with a clamping piece.

9. The hinge for an in-swinging casement window according to claim 1, wherein The connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod and the second connecting rod are cross arranged and are hingedly connected with each other; two ends of the first connecting rod are respectively hingedly connected with the sliding block and the third connecting rod; two ends of the second connecting rod are respectively hingedly connected with the fixed seat and the movable rod; and the third connecting rod is respectively hingedly connected with the movable rod and the first connecting rod.

10. The hinge for an in-swinging casement window according to claim 1, wherein The movable rod is provided with a mounting block.

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