A window hinge
Patent Information
- Application Number
- CN202521691666.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-08-11
Smart Images
Figure CN224919058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of door and window accessories, and in particular to a window hinge. Background Technology
[0002] Window hinges are key components connecting window sashes and window frames. Their unfolded state directly affects the window's opening stability. The window sash needs to be able to open stably within a certain angle range (casement windows are widely used due to their good ventilation and sealing, and the opening angle is usually 90 to 180 degrees). The overlapping state of window hinges directly affects the window's closing sealing performance, preventing water leakage.
[0003] Common casement window hinges in existing technology, especially those requiring large opening angles (such as approaching or reaching 180 degrees), often employ multi-link mechanisms. However, to achieve large opening angles, some hinges require additional dampers, which not only increases manufacturing costs and assembly difficulty but may also affect the overall compactness and aesthetics of the hinge. Utility Model Content
[0004] To overcome the technical problems of existing window hinges having complex structures, poor stability at their maximum angle, inability to withstand wind pressure, and the need for additional dampers to limit the maximum angle, this utility model provides a window hinge, including a sash arm assembly and a mounting base. The sash arm assembly and the mounting base can be unfolded or folded relative to each other. The sash arm assembly includes: The first link is rotatably mounted on the mounting base; The second link is located on one side of the mounting base, along with the first link. One end of the second link is rotatably mounted on the first link, and the other end is slidably connected to the mounting base. The third link has one end slidably connected to the mounting base; The fourth link is located on the other side of the mounting base, and the other end of the third link is rotatably mounted on the body of the fourth link. One end of the fourth link is slidably connected to the mounting base. The fifth link has a limiting block. The other end of the fourth link is rotatably connected to the fifth link and has a first steering and a second steering relative to the fifth link. The fourth link located in the first steering position abuts against the limiting block, and the fan arm assembly unfolds relative to the mounting base. The fourth link located in the second steering position separates from the limiting block, and the fan arm assembly overlaps relative to the mounting base.
[0005] Furthermore, it also includes a clamping seat, with the front and rear ends of the second connecting rod respectively hinged to the clamping seat and the first connecting rod via second rivets. The clamping seat has a first position and a second position relative to the mounting seat. The clamping seat has an inner cavity and a sliding groove, with the sliding groove located on both outer walls of the inner cavity. The mounting seat has a second sliding hole, with the edge of the second sliding hole fitting into the sliding groove 302. In the first position, the sliding groove of the clamping seat clamps the wall of the second sliding hole, and the fan arm assembly unfolds relative to the mounting seat. In the second position, the sliding groove of the clamping seat separates from the wall of the second sliding hole, and the clamping seat can move along the length direction of the second sliding hole, with the fan arm assembly overlapping relative to the mounting seat.
[0006] Furthermore, it also includes a tapered head fastener; the clamping seat includes: Top plate, with conical countersunk holes; The base plate has a through hole and side walls disposed on both sides of the through hole, the side walls being fixedly connected to the top plate to realize that the base plate and the top plate form the inner cavity and the sliding groove; The head of the tapered fastener is embedded in the tapered countersunk hole, and the shaft of the tapered fastener is threadedly connected to the through hole.
[0007] Furthermore, the top plate and the bottom plate are respectively provided with raised walls in the areas corresponding to the inner cavity, and the raised walls extend outward in the horizontal direction along the surface of the top plate and the bottom plate.
[0008] Furthermore, the fourth link has a crescent-shaped shaft, and when the fan arm assembly is stacked relative to the mounting base, the shaft covers the limiting block.
[0009] Furthermore, it also includes a third rivet, and the mounting base also has a third sliding hole, the third connecting rod is hinged to the third rivet, and the third rivet is slidably disposed in the third sliding hole.
[0010] Furthermore, it also includes a fourth rivet, and the mounting base also has a fourth sliding hole with an arc-shaped transition. The fourth connecting rod is hinged to the fourth rivet, and the fourth rivet is slidably disposed in the fourth sliding hole.
[0011] Furthermore, the first connecting rod is hinged to the mounting base by a first rivet.
[0012] Furthermore, the fifth link is hinged to the fourth link by a fifth rivet.
[0013] Furthermore, it also includes a sixth rivet, at the end of the first link away from the mounting base, which is hinged to the fifth link to form the fan arm assembly; the fifth link has an anti-rotation block, which engages with the third link in the folded state and separates from the third link in the unfolded state. Beneficial effects
[0014] The beneficial effects of adopting the technical solution of this utility model are as follows: The mounting base is fixedly installed on the window frame, and the sash arm assembly is installed on the mounting frame. The sash arm assembly can be unfolded, providing stable support for the window sash and allowing it to open stably to its maximum angle. The sash arm assembly can also be folded onto the mounting base, covering it and ensuring a tight closure. The first link of the sash arm assembly is hinged to the mounting base, while the second, third, and fourth links are slidably connected to it. The first link is hinged to the second link, the third link to the fourth link, and the first link to the fifth link, which in turn is hinged to the fourth link. When unfolded, an external force drives the sash arm assembly to unfold. At this time, the fourth link rotates towards the first turning direction until it abuts against the limiting block of the fifth link. Simultaneously, the second link slides within the mounting base and pushes the fifth link... When the first link rotates, the third link slides in the mounting base and locks the fourth link in position, ensuring that the fourth link always abuts against the limiting block. This allows the fan arm assembly to fully unfold, resulting in a simple, stable, and easy-to-operate structure. It overcomes the technical shortcomings of the prior art, which suffers from poor stability when the hinge is at its maximum angle, making it unable to withstand wind pressure and requiring additional dampers to limit the maximum angle. When the fan arm is closed, an external force drives it to close. At this point, the fourth link rotates towards the second link until it separates from the limiting block of the fifth link. The second link then slides in the mounting base in the opposite direction to its unfolded position, causing the first link to rotate in the opposite direction. Simultaneously, the third link also slides in the opposite direction in the mounting base, releasing the fourth link and separating it from the limiting block. The fan arm assembly can then easily stack on the mounting base. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a window hinge in its stacked state according to this utility model; Figure 2 This is a utility model Figure 1A cross-sectional view along the AA direction; Figure 3 This is an exploded view of a window hinge according to this utility model; Figure 4 This is a structural schematic diagram of a window hinge in its unfolded state according to this utility model; Figure 5 This is a structural schematic diagram of a window hinge in its unfolded state at another angle.
[0017] Explanation of the reference numerals in the figure: 10. Fan arm assembly; 11. First connecting rod; 12. Second connecting rod; 13. Third connecting rod; 14. Fourth connecting rod; 15. Fifth connecting rod; 151. Limiting block; 152. Anti-rotation block; 20. Mounting base; 201. Second sliding hole; 202. Third sliding hole; 203. Fourth sliding hole; 30. Clamping base; 31. Top plate; 311. Conical countersunk hole; 32. Bottom plate; 321. Side wall; 301. Inner cavity; 302. Sliding groove; 303. Protruding wall; 40. Second rivet; 400. Sixth rivet; 50. Conical head fastener; 60. Third rivet; 70. Fourth rivet; 80. First rivet; 90. Fifth rivet. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0019] Please refer to Figures 1 to 5 A window hinge includes a sash arm assembly 10 and a mounting base 20, wherein the sash arm assembly 10 and the mounting base 20 are capable of unfolding or overlapping relative to each other, and the sash arm assembly 10 includes: The first connecting rod 11 is rotatably mounted on the mounting base 20; The second connecting rod 12 is located on one side of the mounting base 20, along with the first connecting rod 11. One end of the second connecting rod 12 is rotatably disposed on the first connecting rod 11, and the other end is slidably connected to the mounting base 20. The third link 13 has one end slidably connected to the mounting base 20; The fourth link 14 is located on the other side of the mounting base 20, and the other end of the third link 13 is rotatably mounted on the body of the fourth link 14. One end of the fourth link 14 is slidably connected to the mounting base 20. The fifth link 15 has a limiting block 151. The other end of the fourth link 14 is rotatably connected to the fifth link 15 and has a first steering and a second steering relative to the fifth link 15. The fourth link 14 located in the first steering position abuts against the limiting block 151, and the fan arm assembly 10 unfolds relative to the mounting base 20. The fourth link 14 located in the second steering position separates from the limiting block 151, and the fan arm assembly 10 overlaps with the mounting base 20.
[0020] In this technical solution, the mounting base 20 is fixedly installed on the window frame, and the sash arm assembly 10 is installed on the mounting frame 20. The sash arm assembly 10 can be unfolded, and when unfolded, it can stably support the window sash, allowing the window sash to open stably to its maximum angle. The sash arm assembly 10 can also be folded onto the mounting base 20, and when folded, it covers the mounting base 20, allowing the window sash to close tightly. The first connecting rod 11 of the sash arm assembly 10 is hinged to the mounting base 20, and the second connecting rod... 12. Both the third link 13 and the fourth link 14 are slidably connected to the mounting base 20. The first link 11 is hinged to the second link 12, the third link 13 is hinged to the fourth link 14, the first link 11 is hinged to the fifth link 15, and the fifth link 15 is hinged to the fourth link 14, eliminating mutual motion interference. When unfolded, external force drives the fan arm assembly 10 to unfold. At this time, the fourth link 14 rotates in the first direction until it can abut against the limiting block 151 of the fifth link 15. At this time, the second link... The rod 12 slides in the mounting base 20 and pushes the first link 11 to rotate. Simultaneously, the third link 13 slides in the mounting base 20 and locks the position of the fourth link 14, so that the fourth link 14 can always abut against the limiting block 151. The fan arm assembly 10 is fully extended. The structure is simple, stable and easy to operate. It solves the technical defects of the background technology, which is poor stability when the hinge is at the maximum angle, cannot resist the pressure wind force, and requires the installation of an additional damper to limit the maximum angle. When the fan arm is closed, the external force drives the fan arm 10 to close. At this time, the fourth link 14 rotates to the second rotation until the fourth link 14 separates from the limiting block 151 of the fifth link 15. At this time, the second link 12 slides in the mounting base 20 in the opposite direction to the direction when it is extended and drives the first link 11 to rotate in the opposite direction. Simultaneously, the third link 13 also slides in the opposite direction in the mounting base 20 and releases the fourth link 14, so that the fourth link 14 separates from the limiting block 151. The fan arm assembly 10 can be easily stacked on the mounting base 20.
[0021] In order to enable the second link 12 to move in coordination with the fourth link 14, by Figures 2 to 5 As shown, the window hinge also includes a clamping seat 30. The front and rear ends of the second connecting rod 12 are hinged to the clamping seat 30 and the first connecting rod 11 by second rivets 40. The clamping seat 30 has a first position and a second position relative to the mounting seat 20. The clamping seat 30 has an inner cavity 301 and a sliding groove 302. The sliding groove 302 is located on both outer walls of the inner cavity 301. The mounting seat 20 has a second sliding hole 201. The edge of the second sliding hole 201 is fitted into the sliding groove 302. When the clamping seat 30 is in the first position, the sliding groove 302 is clamped to the wall of the second sliding hole 201, and the fan arm assembly 10 is unfolded relative to the mounting seat 20. When the clamping seat 30 is in the second position, the sliding groove 302 is separated from the wall of the second sliding hole 201, and the clamping seat 30 can move along the length direction of the second sliding hole 201. The fan arm assembly 10 is stacked relative to the mounting seat 20.
[0022] In this technical solution, the second connecting rod 12 is hinged to the clamping seat 30 via the second rivet 40. The clamping seat 30 can be changed between a first position and a second position relative to the mounting seat 20. The clamping seat 30 is provided with an inner cavity 301 and sliding grooves 302 on both outer walls. The mounting seat 20 is provided with a second sliding hole 201. When the clamping seat 30 is placed in the second sliding hole 201, by adjusting the change between the first and second positions of the clamping seat 30, the top and bottom walls of the sliding groove 302 can fit into the second sliding hole 201. When the clamping seat 30 is in the first position, the wall of the second sliding hole 201 is embedded in the sliding groove 302, and the sliding groove 302 clamps the wall of the second sliding hole 201, thereby stably supporting the second connecting rod 12 and keeping the fan arm assembly 10 in the unfolded state. When switching to the second position, the sliding groove 302 separates from the wall of the second sliding hole 201 and is unlocked. The clamping seat 30 can slide along the second sliding hole 201, driving the second connecting rod 12 and the fan arm assembly 10 to fold together and retract towards the mounting base 20. By switching the clamping seat 30 between the first and second positions, a reliable conversion between the stably unfolded and compactly folded states of the fan arm assembly 10 is achieved, with a simple structure and convenient operation.
[0023] Specifically, by Figure 2 and Figure 3 As shown, the window hinge also includes a tapered head fastener 50; the clamping seat 30 includes a top plate 31 with a tapered countersunk hole 311; a bottom plate 32 with a through hole and side walls 321 disposed on both sides of the through hole, the side walls 321 being fixedly connected to the top plate 31 to realize that the bottom plate 32 and the top plate 31 form the inner cavity 302 and the sliding groove 302; the head of the tapered head fastener 50 is embedded in the tapered countersunk hole 301, and the shaft of the tapered head fastener 50 is threadedly connected to the through hole.
[0024] In this technical solution, the conical head fastener 50 is a countersunk bolt. The clamping seat 30 is placed in the second sliding hole 201, and the countersunk bolt is passed through the conical countersunk hole 311 of the top plate 31. The conical countersunk hole 311 corresponds to and communicates with the inner cavity 301, and is then threadedly connected to the through hole of the bottom plate 32 (here, the shank of the countersunk bolt can also be rotated through the through hole of the bottom plate 32 and then tightened with a nut, which is not limited here), so that the top plate 31 and the bottom plate 32 fit together, and the sliding groove 302 can fit into the edge of the second sliding hole 201. When the fan arm assembly 10 needs to be stacked relative to the mounting seat 20, the countersunk bolt is slightly loosened. At this time, the countersunk bolt still maintains a certain preload, the inner cavity 301 of the clamping seat 30 becomes larger, the gap between the sliding groove 302 and the edge of the second sliding hole 201 becomes larger, and the sliding groove 302 can move along the second sliding hole 201. The second sliding hole 201 moves along its length. When the fan arm assembly 10 is fully extended relative to the mounting base 20, the sliding groove 302 of the clamping base 30 moves in the opposite direction along the length of the second sliding hole 201. Since the top plate 31 and the bottom plate 32 are respectively provided with protruding walls 303 in the areas corresponding to the inner cavity 301, and the protruding walls 303 extend outward in the horizontal direction along the surface of the top plate 31 and the bottom plate 32, the two opposing protruding walls 303 are fitted into the end edge of the second sliding hole 201. Tightening the countersunk bolts makes the inner cavity 301 smaller, and the gap between the sliding groove 302 and the edge of the second sliding hole 201 becomes smaller, until the edge of the second sliding hole 201 is clamped. The protruding walls 303 are also clamped into the end edge of the second sliding hole 201, achieving the maximum angle limit and making the structure more stable.
[0025] Furthermore, by Figure 3 and Figure 5 As shown, the fourth link 14 has a crescent-shaped rod body. When the sash arm assembly 10 is stacked relative to the mounting base 20, the rod body covers the limiting block 151, making the sash arm assembly 10 compact in the stacked state and sealing when the window sash is closed.
[0026] Furthermore, by Figure 2 and Figure 3 As shown, it also includes a third rivet 60, and the mounting base 20 also has a third sliding hole 202. The third connecting rod 13 is hinged to the third rivet 60, and the third rivet 60 is slidably disposed in the third sliding hole 202. The third rivet 60 occupies little space, the window hinge can be compactly folded, has a long service life, and the third connecting rod 13 can rotate at multiple angles.
[0027] Furthermore, by Figure 2 and Figure 5As shown, it also includes a fourth rivet 70, and the mounting base 20 also has a fourth sliding hole 203. The fourth sliding hole 203 is arc-shaped, and the fourth connecting rod 14 is hinged to the fourth rivet 70. The fourth rivet 70 is slidably disposed in the fourth sliding hole 203. This achieves a connection between the fourth connecting rod 14 and the mounting base 20 that allows both relative rotation and sliding along a specific trajectory, significantly improving the flexibility and smoothness of the movement of the fourth connecting rod 14, effectively reducing the frictional resistance during the movement of the fourth connecting rod 14, avoiding stress concentration between the third connecting rod 13 and the fourth connecting rod 14, thereby improving the durability and reliability of the mechanism. The simple structure optimizes the force transmission path.
[0028] Furthermore, by Figure 2 As shown, the first connecting rod 11 is hinged to the mounting base 20 by the first rivet 70. The first rivet 70 occupies little space, the window hinge can be compactly folded, has a long service life, and the first connecting rod 11 can rotate at multiple angles.
[0029] Furthermore, by Figure 2 As shown, the fifth link 15 is hinged to the fourth link 14 via the fifth rivet 90. The fifth rivet 90 occupies little space, allowing the window hinge to fold compactly, resulting in a long service life. The fifth link 15 and the fourth link 14 can rotate at multiple angles.
[0030] Furthermore, by Figure 2 As shown, it also includes a sixth rivet 400. The end of the first connecting rod 11 away from the mounting base 20 is hinged to the fifth connecting rod 15 through the sixth rivet 400 to form the fan arm assembly 10. The sixth rivet 400 occupies little space, allowing the window hinge to fold compactly and have a long service life. The fifth connecting rod 15 can rotate at multiple angles. Through the cooperation of the first connecting rod 11, the second connecting rod 12, the third connecting rod 13, the fourth connecting rod 14, and the fifth connecting rod 15, the fan arm assembly is formed. When unfolded, it can effectively resist the weight of the curtain and the wind force, preventing the fan arm assembly 10 from drooping and bending. It effectively prevents the curtain from deviating from the predetermined path during movement and avoids the curtain from swaying left and right or twisting and deforming during movement. The fifth connecting rod 15 has an anti-rotation block 152. The anti-rotation block 152 is engaged with the third connecting rod 13 in the folded state and separated from the third connecting rod 13 in the unfolded state, making the structure more stable.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A window hinge, characterized in that, Includes a fan arm assembly (10) and a mounting base (20), the fan arm assembly (10) and the mounting base (20) being able to unfold or overlap relative to each other, the fan arm assembly (10) including: The first link (11) is rotatably mounted on the mounting base (20). The second link (12) is located on one side of the mounting base (20) along with the first link (11). One end of the second link (12) is rotatably disposed on the first link (11), and the other end is slidably connected to the mounting base (20). The third link (13) has one end slidably connected to the mounting base (20); The fourth link (14) is located on the other side of the mounting base (20) along with the third link (13). The other end of the third link (13) is rotatably mounted on the body of the fourth link (14), and one end of the fourth link (14) is slidably connected to the mounting base (20). The fifth link (15) has a limiting block (151). The other end of the fourth link (14) is rotatably connected to the fifth link (15) and has a first steering and a second steering relative to the fifth link (15). The fourth link (14) located in the first steering position abuts against the limiting block (151). The fan arm assembly (10) unfolds relative to the mounting base (20). The fourth link (14) located in the second steering position separates from the limiting block (151). The fan arm assembly (10) overlaps relative to the mounting base (20).
2. A window hinge according to claim 1, characterized in that, It also includes a clamping seat (30), the front and rear ends of the second connecting rod (12) are respectively hinged to the clamping seat (30) and the first connecting rod (11) by second rivets (40), the clamping seat (30) has a first position and a second position relative to the mounting seat (20), the clamping seat (30) has an inner cavity (301) and a sliding groove (302), the sliding groove (302) is located on both outer walls of the inner cavity (301); the mounting seat (20) has a second sliding hole (201), the edge of the second sliding hole (201) is fitted In the groove (302); the groove (302) of the clamping seat (30) located at the first position is clamped to the wall of the second sliding hole (201), and the fan arm assembly (10) unfolds relative to the mounting seat (20); the groove (302) of the clamping seat (30) located at the second position is separated from the wall of the second sliding hole (201), the clamping seat (30) can move along the length direction of the second sliding hole (201), and the fan arm assembly (10) overlaps with the mounting seat (20).
3. A window hinge according to claim 2, characterized in that, It also includes a tapered head fastener (50); the clamping seat (30) includes: Top plate (31) has a conical countersunk hole (311); The bottom plate (32) has a through hole and sidewalls (321) on both sides of the through hole. The sidewalls (321) are fixedly connected to the top plate (31) so that the bottom plate (32) and the top plate (31) form the inner cavity (301) and the groove (302). The head of the tapered head fastener (50) is embedded in the tapered countersunk hole (311), and the shaft of the tapered head fastener (50) is threadedly connected to the through hole.
4. A window hinge according to claim 3, characterized in that, The top plate (31) and the bottom plate (32) are respectively provided with protruding walls (303) in the area corresponding to the inner cavity (301), and the protruding walls (303) extend outward in the horizontal direction along the surface of the top plate (31) and the bottom plate (32).
5. A window hinge according to claim 1, characterized in that, The fourth link (14) has a crescent-shaped shaft. When the fan arm assembly (10) is stacked relative to the mounting base (20), the shaft covers the limiting block (151).
6. A window hinge according to claim 1, characterized in that, It also includes a third rivet (60), the mounting base (20) also has a third sliding hole (202), the third connecting rod (13) is hinged to the third rivet (60), and the third rivet (60) is slidably disposed in the third sliding hole (202).
7. A window hinge according to claim 1 or 5, characterized in that, It also includes a fourth rivet (70), the mounting base (20) also has a fourth sliding hole (203), the fourth connecting rod (14) is arc-shaped and hinged to the fourth rivet (70), and the fourth rivet (70) is slidably disposed in the fourth sliding hole (203).
8. A window hinge according to claim 1, characterized in that, The first link (11) is hinged to the mounting base (20) by the first rivet (80).
9. A window hinge according to claim 1, characterized in that, The fifth link (15) is hinged to the fourth link (14) by the fifth rivet (90).
10. A window hinge according to claim 1, characterized in that, It also includes a sixth rivet (400), one end of the first link (11) away from the mounting base (20) is hinged to the fifth link (15) through the sixth rivet (400) to form the fan arm assembly (10); the fifth link (15) has an anti-rotation block (152), which is engaged with the third link (13) in the stacked state and separated from the third link (13) in the unfolded state.