A dustproof screen window hinge

Abstract

The present invention relates to the technical field of door and window hinges, and in particular to a dustproof screen window hinge, comprising a window frame mounting plate, a first connecting rod, a second connecting rod, a third connecting rod and a window sash mounting plate, wherein one end of the first connecting rod is slidably connected to an end of the window frame mounting plate close to the window frame, and the other end of the first connecting rod is rotationally hinged to the head of the window sash mounting plate; one end of the third connecting rod is rotationally hinged to an end of the window frame mounting plate away from the window frame, and the other end of the third connecting rod is rotationally hinged to the middle part of the window sash mounting plate; one end of the second connecting rod is rotationally hinged to the first connecting rod, and the hinge point is located between the other two hinge points of the first connecting rod; the other end of the second connecting rod is rotationally hinged to the third connecting rod, and the hinge point is located between the other two hinge points of the third connecting rod, when the screen window sash is opened, the avoidance sliding block moves along the avoidance sliding groove to the middle part of the window frame mounting plate, so as to realize the opening avoidance of the glass window sash, greatly improve the safety and aesthetics, and at the same time greatly enhance the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of door and window hinges, and in particular to a dustproof screen window hinge. Background Art

[0002] The door and window system (also known as system doors and windows or system windows) refers to the organic combination of all materials that make up a complete door and window subsystem. It is necessary to consider a series of important functions such as water tightness, air tightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, anti-theft, sun shading, weather resistance, and operational feel. It is also necessary to consider the comprehensive results of the performance of each link of equipment, profiles, hardware accessories, glass, adhesive, and seals to finally form a high-performance door and window system.

[0003] The existing door and window systems are mainly divided into casement windows and sliding windows. Casement windows are widely used in building decoration due to their large opening area, good ventilation, good sealing, sound insulation, heat preservation and excellent anti-seepage performance.

[0004] In order to ensure ventilation and prevent mosquitoes from flying in, screens are often installed on glass windows. Screens are divided into invisible screens and non-invisible screens. Invisible screens are widely used because when they are closed, the hinges connecting the screen and the window frame are hidden at the connection between the screen and the window frame. This makes them look more beautiful from the outside.

[0005] The existing casement windows are opened in such a way that the glass window opens outwards and the screen window opens inwards. With the improvement of people's safety awareness, the glass windows of users on high floors are easily damaged or blown off when opened outwards, and the concealment is not strong. If the existing door and window hinges are used to install the glass window and the screen window at the same time, since their opening angles are mostly designed for the maximum wide angle, they will collide with each other when opened inwards, causing the glass window and the screen window to be damaged, scratched and damaged. Therefore, it is necessary to improve it. Summary of the invention

[0006] The purpose of the present invention is to provide a dustproof screen window hinge to address the deficiencies in the prior art, which can enable the screen window to avoid the glass window when both the glass window and the screen window are opened inward, effectively preventing the screen window from colliding, scratching or damaging the glass window, greatly improving safety and aesthetics, and greatly enhancing user experience.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a dust-proof screen window hinge, including a window frame mounting plate, a first connecting rod, a second connecting rod, a third connecting rod and a window sash mounting plate, one end of the first connecting rod is slidably connected to an end of the window frame mounting plate close to the window frame, and the other end of the first connecting rod is rotationally hinged to the head of the window sash mounting plate; one end of the third connecting rod is rotationally hinged to an end of the window frame mounting plate away from the window frame, and the other end of the third connecting rod is rotationally hinged to the middle part of the window sash mounting plate; one end of the second connecting rod is rotationally hinged to the first connecting rod, and the hinge point is located between the other two hinge points of the first connecting rod; the other end of the second connecting rod is rotationally hinged to the third connecting rod, and the hinge point is located between the other two hinge points of the third connecting rod.

[0008] Specifically, an avoidance slide groove is provided in the middle of the window frame mounting plate, and an avoidance slider is slidably provided in the avoidance slide groove, and the avoidance slider is clamped between the first connecting rod and the window frame mounting plate.

[0009] Specifically, the window frame is provided with a mounting groove, and the lower surface of the window frame mounting plate is provided with a convex point protruding downward, and the convex point is clamped in the mounting groove.

[0010] Specifically, the window sash mounting plate is provided with an upper support pad which contacts the first connecting rod and the third connecting rod respectively, and the upper support pad is provided with a first step and a second step, the thickness of the first step is greater than the thickness of the second step, the lower surface of the first step contacts the upper surface of the first connecting rod, and the lower surface of the second step contacts the upper surface of the third connecting rod.

[0011] Specifically, the third connecting rod is provided with a V-shaped avoidance opening, the opening of which faces the first step of the upper support pad, and the avoidance opening contacts the side of the first step when the screen window sash is opened to the maximum angle.

[0012] Specifically, a top block is provided at the rear end of the window sash mounting plate, and a window frame top corner corresponding to the top block is provided at the front end of the window frame mounting plate. An assembly groove corresponding to the window frame top corner is provided at the intersection of the transverse profile and the vertical profile of the window frame. The window frame top corner is arranged in the assembly groove, and the top block is located in the window frame top corner when the screen window sash is closed.

[0013] Specifically, the window frame mounting plate is provided with a dustproof groove, the avoidance slide groove is arranged in the dustproof groove, the lower end of the avoidance slider is provided with a slider that slides with the avoidance slide groove, and the upper end of the avoidance slider covers the avoidance slide groove.

[0014] Specifically, both sides of the middle part of the second connecting rod are provided with inwardly concave avoidance waist grooves to avoid the first connecting rod and the third connecting rod when the screen window sash is opened or closed.

[0015] Specifically, a bending portion is provided at the rear end of the window sash mounting plate, and the bending portion is L-shaped.

[0016] Specifically, the window frame mounting plate is provided with a plurality of window frame fixing holes for being fixedly connected to the window frame, and the window sash mounting plate is provided with a plurality of window sash fixing holes for being fixedly connected to the screen window sash.

[0017] Specifically, the hinges between the window frame mounting plate, the window sash mounting plate, the first connecting rod, the second connecting rod and the third connecting rod are all different and are all provided with gaskets, and the thickness of the gaskets is 0.3 mm to 3 mm.

[0018] Beneficial effects of the present invention: the present invention is provided with an avoidance slide groove and an avoidance slider sliding on the avoidance slide groove at the window frame mounting plate. When the screen window sash is opened, the avoidance slider moves along the avoidance slide groove to the middle of the window frame mounting plate, and then pulls the screen window sash away from the glass window to open, thereby achieving opening avoidance of the glass window sash, effectively preventing the screen window sash from colliding or rubbing with the glass window sash, greatly improving safety and aesthetics, and at the same time greatly improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the screen window hinge of the present invention.

[0020] Figure 2 It is a schematic diagram of the exploded structure of the screen window hinge of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the closed state of the screen window hinge of the present invention.

[0022] Figure 4 It is a schematic diagram of the assembly state of the present invention.

[0023] Reference numerals include:

[0024] 1. Window frame mounting plate; 2. Window sash mounting plate; 3. First connecting rod; 4. Second connecting rod; 5. Third connecting rod;

[0025] 6. Dustproof groove; 7. Avoidance slide; 8. Avoidance slider; 9. Avoidance waist groove; 10. Top block; 11. Window frame top angle; 12. Gasket; 13. Window frame fixing hole; 14. Window sash fixing hole; 15. Bending part; 16. Avoidance mouth;

[0026] 20. Raised point; 21. Screen window sash; 22. Glass window sash. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4As shown, a dustproof screen window hinge comprises a window frame mounting plate 1, a window sash mounting plate 2, a first connecting rod 3, a second connecting rod 4 and a third connecting rod 5. The window frame mounting plate 1 is provided with an avoidance slide groove 7, in which an avoidance slider 8 is slidably provided. One end of the first connecting rod 3 is hinged to the avoidance slider 8, and the other end of the first connecting rod 3 is hinged to the front end of the window sash mounting plate 2. One end of the third connecting rod 5 is hinged to the rear end of the window frame mounting plate 1, and the other end of the third connecting rod 5 is hinged to the rear end of the window sash mounting plate 2. The second connecting rod 4 is hinged to the middle part of the first connecting rod 3 and the middle part of the third connecting rod 5 respectively. When the screen window sash 21 is opened, the avoidance slider 8 drives the first connecting rod 3 to move along the avoidance slide groove 7 toward the direction close to the third hinge. When the screen window sash 21 is closed, the avoidance slider 8 drives the first connecting rod 3 to move along the avoidance slide groove 7 toward the direction away from the third hinge. During the installation process of the double inward-opening glass window sash 22 and screen window sash 21, the screen window sash 21 needs to be installed on the outside and the glass window sash 22 on the inside. When opening the screen window sash 21 inward, the glass window sash 22 needs to be opened first, and then the screen window sash 21 is pulled. At this time, the screen window sash 21 drives the sash mounting plate 2 to move. During the movement, since an avoidance groove is provided in the window frame mounting plate 1, the avoidance slider 8 drives the first connecting rod 3 to move toward the middle direction of the window frame mounting plate 1, and then the screen window sash 21 is restrained and opened to a certain limit, which effectively prevents the screen window sash 21 from colliding or rubbing with the glass window sash 22, greatly improving safety and aesthetics, and at the same time greatly improving user experience.

[0029] The window frame is provided with a mounting groove, and the lower surface of the window frame mounting plate 1 is provided with a convex point 20 protruding downward, and the convex point 20 is clamped in the mounting groove. When installing the window frame mounting plate 1, the window frame mounting plate 1 is placed on the window frame, and the window frame is provided with a shrinking groove. The convex point will extend into the shrinking groove to clamp the window frame, and the window frame mounting plate 1 is pre-installed to prevent the installation dislocation caused by the window frame mounting plate 1 moving left and right.

[0030] The third connecting rod 5 is provided with a position avoidance opening 16, which is V-shaped, and the opening of the position avoidance opening 16 faces the first step of the upper support pad. When the screen window sash 21 is opened to the maximum angle, the position avoidance opening 16 contacts the side of the first step. By providing the position avoidance opening 16 to avoid the first step, the friction between the third connecting rod 5 and the upper support pad is reduced, and the smoothness is improved. When the screen window hinge is opened to a limited angle, the V-shaped position avoidance opening 16 on the third connecting rod 5 abuts against the upper support pad, thereby playing a limiting role, thereby increasing the wind pressure resistance of the hinge body.

[0031] The rear end of the window sash mounting plate 2 is provided with a top block 10, the front end of the window frame mounting plate 1 is provided with a window frame top corner 11 corresponding to the top block 10, and the intersection of the horizontal profile and the vertical profile of the window frame is provided with a mounting groove corresponding to the window frame top corner 11. The window frame top corner 11 is arranged in the mounting groove, and the top block 10 is located in the window frame top corner 11 when the screen window sash 21 is closed. When the screen window hinge is closed, the top connecting rod forms a limit fit with the window frame top corner 11, and the window sash mounting plate 2 is thickened to further improve the load-bearing capacity.

[0032] The window frame mounting plate 1 is provided with a dustproof groove 6, and the avoidance slide groove 7 is provided in the dustproof groove 6. The lower end of the avoidance slider 8 is provided with a slider that slides with the avoidance slide groove 7, and the upper end of the avoidance slider 8 covers the avoidance slide groove 7. Through the mutual cooperation between the dustproof groove 6 and the dustproof slider, the waist groove is always in a covering state. When the hinge body is in an open or closed state, the dustproof slider always moves in the dustproof groove 6, and the dustproof slider and the dustproof groove 6 fit each other, thereby effectively preventing dust and gravel from entering the window frame through the gap between the waist groove or the dustproof groove 6 and the dustproof slider, thereby effectively avoiding deformation and wear caused by friction between the hinge body and gravel when opening or closing, effectively improving the service life of the hinge body, and at the same time facilitating the user to clean the hinge body, improving the user experience.

[0033] Both sides of the middle of the second connecting rod 4 are provided with an inwardly concave avoidance waist groove 9, which avoids the first connecting rod 3 and the third connecting rod 5 when the screen window sash 21 is opened or closed. By providing the avoidance waist groove 9, the screen window hinge is smoother during the opening and closing process, the friction between the connecting rods is reduced, and the service life is further improved.

[0034] The rear end of the window sash mounting plate 2 is provided with a bending portion 15, which is L-shaped. The window sash mounting plate 2 is limited by the bending portion 15 when inserted into the window sash groove, preventing the window sash mounting plate 2 from being inserted too deep into the window sash groove and requiring manual adjustment, thereby improving installation convenience.

[0035] The window frame mounting plate 1 is provided with a plurality of window frame fixing holes 13 for fixing with the window frame, and the window sash mounting plate 2 is provided with a plurality of window sash fixing holes 14 for fixing with the screen window sash 21. The window frame fixing holes 13 further improve the stability of the window frame mounting plate 1 during installation, and the window sash fixing holes 14 further improve the stability of the window sash mounting plate 2 during installation.

[0036] The hinges between the window frame mounting plate 1, the window sash mounting plate 2, the first connecting rod 3, the second connecting rod 4 and the third connecting rod 5 are all different and are all provided with gaskets 12, the thickness of the gaskets 12 is 0.3 mm to 3 mm. The gaskets 12 improve the lubricity of the hinges, making the opening and closing of the sliding support hinge smoother.

[0037] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0038] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A dustproof screen window hinge, comprising a window frame mounting plate, a first connecting rod, a second connecting rod, a third connecting rod and a window sash mounting plate, characterized in that: One end of the first connecting rod is slidably connected to an end of the window frame mounting plate close to the window frame, and the other end of the first connecting rod is rotatably hinged to the head of the window sash mounting plate; one end of the third connecting rod is rotatably hinged to an end of the window frame mounting plate away from the window frame, and the other end of the third connecting rod is rotatably hinged to the middle part of the window sash mounting plate; one end of the second connecting rod is rotatably hinged to the first connecting rod, and the hinge point of the second connecting rod and the first connecting rod is located between the hinge point of the first connecting rod and the window frame mounting plate and the hinge point of the first connecting rod and the window sash mounting plate; the other end of the second connecting rod is rotatably hinged to the third connecting rod, and the hinge point is located between the other two hinge points of the third connecting rod, and an avoidance slide groove is provided in the middle part of the window frame mounting plate, and an avoidance slider is slidably provided in the avoidance slide groove, and the avoidance slider is clamped between the first connecting rod and the window frame mounting plate. When the window sash is opened, the first connecting rod drives the avoidance slider to move along the avoidance slide groove in a direction away from the window frame, and when the window sash is closed, the first connecting rod drives the avoidance slider to move along the avoidance slide groove in a direction close to the window frame.

2. A dustproof screen window hinge according to any one of claim 1, characterized in that: The third connecting rod is provided with a V-shaped avoidance opening, the opening of which faces the first step of the first connecting rod, and the avoidance opening contacts the side of the first step when the window sash is opened to the maximum angle.

3. The dustproof screen window hinge according to claim 1, characterized in that: The window sash mounting plate is provided with a top block at one end close to the window frame, and the window frame mounting plate is provided with a window frame top angle corresponding to the top block at one end close to the window frame. When the window sash is closed, the top block is located in the window frame top angle.

4. A dustproof screen window hinge according to any one of claim 1, characterized in that: The window frame mounting plate is provided with a dustproof groove, the avoidance slide groove is arranged in the dustproof groove, the lower end of the avoidance slider is provided with a slider that slides with the avoidance slide groove, and the upper end of the avoidance slider covers the avoidance slide groove.

5. The dustproof screen window hinge according to claim 1, characterized in that: Both sides of the middle part of the second connecting rod are provided with inwardly concave avoidance waist grooves, which avoid the first connecting rod and the third connecting rod when the screen window sash is opened or closed.

6. The dustproof screen window hinge according to claim 1, characterized in that: The rear end of the window sash mounting plate is provided with a bending portion, which is L-shaped.

7. The dustproof screen window hinge according to claim 5, characterized in that: The window frame mounting plate is provided with a plurality of window frame fixing holes for being fixedly connected to the window frame, and the window sash mounting plate is provided with a plurality of window sash fixing holes for being fixedly connected to the screen window sash.

8. The dustproof screen window hinge according to claim 1, characterized in that: The hinges between the window frame mounting plate, the window sash mounting plate, the first connecting rod, the second connecting rod and the third connecting rod are all different and are all provided with gaskets, the thickness of the gaskets being 0.3 mm to 3 mm.

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