Positioning hinge

By introducing a lifting structure with limiting posts and limiting links and a four-bar linkage into the casement window hinge, the problem that the limiting structure needs to be manually released in the existing technology is solved, and the convenient adjustment of the support arm angle and the improvement of sealing performance are realized.

CN224200447UActive Publication Date: 2026-05-05GUANGDONG OBEILO HOME TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG OBEILO HOME TECHNOLOGY CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing casement window hinge limit structure requires manual release, which is inconvenient to use and the structure is complex and prone to clogging.

Method used

A positioning hinge was designed, which realizes automatic adjustment of the support arm angle and limit through the lifting structure and control structure of the limit post and limit link. The four-bar linkage simplifies the structure, eliminates the slide groove or slide rail, and increases the convenience of operation and cleaning.

Benefits of technology

It enables convenient adjustment of the support arm angle and quick release of the limit switch, simplifies the operation process, and improves sealing performance and service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224200447U_ABST
    Figure CN224200447U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of window hinges, and particularly discloses a positioning hinge which comprises a frame fixing seat and a supporting arm used for installing a window sash, a linkage mechanism is connected between the frame fixing seat and the supporting arm, the linkage mechanism comprises a long rod, one end of the long rod is hinged to the near-side frame end of the supporting arm, and a limiting connecting rod is hinged between the other end of the long rod and the frame fixing seat. A limiting column and a control structure controlling the limiting column to abut against the side wall of the limiting connecting rod are movably arranged on the frame fixing base. The hinge can limit the opening angle of the supporting arm relative to the frame fixing base, the limiting effect between the limiting column and the limiting connecting rod can be rapidly relieved by controlling the height of the limiting column, the supporting arm continues to be opened or closed, and operation is convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of window hinge technology, specifically to a positioning hinge. Background Technology

[0002] Casement windows are a type of window found in traditional residential houses. Hinges are installed on one side of the window sash and connected to the frame. Depending on whether they open outwards or inwards, they are classified as outward-opening or inward-opening casement windows. These windows are characterized by their simple construction, flexible opening, and good sealing performance when closed, making them the most widely used type of window in residential buildings.

[0003] Many common casement window hinges on the market have a limiting structure that restricts the opening or closing of the support arm relative to the frame mounting base to a certain angle. However, this limiting structure only restricts the opening angle of the support arm relative to the frame mounting base. To release the restriction, the limiting structure must be manually removed from the frame mounting base. This is very inconvenient to use.

[0004] This utility model was made based on the above circumstances. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a simple positioning hinge. This hinge can limit the opening angle of the support arm relative to the frame fixing seat, and can also quickly release the limiting effect between the limiting post and the limiting link by controlling the height of the limiting post, so as to continue to open or close the support arm. It is easy to operate.

[0006] This utility model is achieved through the following technical solution:

[0007] A positioning hinge includes a frame fixing seat and a bracket for mounting a window sash. A linkage mechanism is connected between the frame fixing seat and the bracket. The linkage mechanism includes a long rod with one end hinged to the near end of the bracket frame. The other end of the long rod is hinged to a limit link between the frame fixing seat and the frame fixing seat. A limit post and a control structure for controlling the limit post to abut against the side wall of the limit link are movably provided on the frame fixing seat.

[0008] As described above, in the positioning hinge, the limiting post is movably mounted on the frame fixing seat, the control structure includes a lever slidably mounted on the frame fixing seat, the bottom of the frame fixing seat is provided with a lifting seat connected to the lever, the bottom of the limiting post abuts against the lifting seat and rises or falls during the sliding process of the lifting seat.

[0009] As described above, the positioning hinge has a first support surface for abutting the limit post when it rises to abut the limit link and a second support surface for abutting the limit post when it falls to a position where the height of the top of the limit post is less than the height of the bottom of the limit link. A transition slope is provided between the first support surface and the second support surface.

[0010] As described above, the positioning hinge has a resilient arched structure.

[0011] As described above, the positioning hinge has a limiting notch on the limiting link that matches the limiting post.

[0012] As described above, in the positioning hinge, a pusher elastic element is provided between the limiting post and the frame fixing seat to push the limiting post downward.

[0013] As described above, the linkage mechanism further includes a short connecting rod rotatably connected to the far end of the support arm frame, and a load-bearing rod with one end hinged to the short connecting rod and the other end rotatably connected to the near end of the frame fixing seat frame, wherein the middle part of the load-bearing rod is rotatably connected to the middle part of the long rod.

[0014] As described above, when the limiting post abuts against the side wall of the near-side frame end of the limiting link in the positioning hinge, the angle at which the support arm opens relative to the frame fixing seat is 90°.

[0015] As described above, the positioning hinge has an adjustment plate on the frame fixing seat for adjusting the installation position of the frame fixing seat on the window frame.

[0016] As described above, in the positioning hinge, the free end of the adjusting plate is located below the lifting seat and is used to support the lifting seat.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The positioning hinge of this utility model can limit the opening angle of the support arm relative to the frame fixing seat, and can also quickly release the limiting effect between the limiting post and the limiting link by controlling the height of the limiting post, so as to continue to open or close the support arm.

[0019] 2. This utility model has a lifting seat with a lever and a support surface of different heights that can abut against the bottom of the limiting post. When the lever is turned, the limiting post can be abutted against by the support surface of different heights of the lifting seat and rise and fall accordingly. This controls whether the limiting post abuts against the side wall of the limiting link, and the operation is simple.

[0020] 3. The linkage mechanism on the positioning hinge of this utility model has a simple structure. By setting two four-bar linkages, the support arm can be opened and closed flexibly without the need for a separate sliding structure between the frame fixing seat and the linkage component, and it is also easy to clean. Attached Figure Description

[0021] To more clearly illustrate the structural features and effects of this utility model, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the positioning hinge of this utility model;

[0023] Figure 2 This is an exploded view of the positioning hinge structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the bottom structure of the positioning hinge of this utility model;

[0025] Figure 4 for Figure 1 A schematic diagram of the cross-section of the positioning hinge in the AA direction;

[0026] Figure 5 for Figure 4 Enlarged structural diagram at point B. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0028] like Figure 1-2 As shown, a positioning hinge includes a frame fixing seat 1 and a support arm 2 for installing a window sash. A linkage mechanism is connected between the frame fixing seat 1 and the support arm 2. The linkage mechanism includes a long rod 3 with one end hinged to the near end of the frame of the support arm 2. The other end of the long rod 3 is hinged to the frame fixing seat 1 with a limit link 4. A limit post 5 and a control structure 6 are movably provided on the frame fixing seat 1 to control the limit post 5 to abut against the side wall of the limit link 4.

[0029] This utility model positioning hinge can limit the opening or closing angle of the support arm 2 relative to the frame fixing seat 1 by controlling the abutment between the limiting post 5 and the side wall of the limiting link 4. It can also quickly release the limiting effect of the limiting post 5 by controlling the release of the abutment between the limiting post 5 and the side wall of the limiting link 4, so that the support arm can continue to open or close. This operation is convenient and simple, and there is no need to manually remove the limiting structure, saving operation time.

[0030] like Figure 2As shown, the limiting post 5 is movably mounted on the frame fixing base 1. The control structure 6 includes a lever 61 slidably mounted on the frame fixing base 1. The bottom of the frame fixing base 1 is provided with a lifting seat 62 connected to the lever 61. The bottom of the limiting post 5 abuts against the lifting seat 62 and rises or falls during the sliding process of the lifting seat 62. In this way, the lifting height of the limiting post can be controlled to control whether the limiting post abuts against the side wall of the limiting linkage, which is convenient and simple to operate. In this embodiment, the lever 61 is slidably mounted on the frame fixing base 1 through a slide groove 11. The frame fixing base 1 is provided with a slide groove 11. The lever 61 slides in the slide groove 11, driving the lifting seat 62 fixed at its lower part to slide along the slide groove 11. This allows the bottom of the limiting post 5 to be continuously abutted by the support surfaces of different heights on the lifting seat 62, and the limiting post 5 rises or falls with the support surfaces of different heights.

[0031] Specifically, such as Figure 2-5 As shown, in this embodiment of the invention, the lifting seat 62 is provided with a first support surface 621 for abutting the limiting post 5 when it rises to abut the limiting link 4, and a second support surface 622 for abutting the limiting post 5 when it descends to a height where the top of the limiting post 5 is less than the bottom of the limiting link 4. A transition slope 623 is provided between the first support surface 621 and the second support surface 622. When the toggle block 61 slides along the sliding hole 11 towards the other end, the height of the limiting post 5 gradually decreases to a height lower than the bottom of the limiting link 4 and is abutted by the second support surface 622. At this time, the limiting post 5 loses its limiting function. The transition slope 623 can play a role in abutting and transitioning, making it easier to drive the lifting and lowering of the limiting post 5.

[0032] In this embodiment of the invention, the lifting seat 62 is an elastic arched plate. The elastic arched plate is less prone to deformation, thus better ensuring the function of the lifting seat 62.

[0033] like Figure 1-2 As shown, the limiting link 4 is provided with a limiting notch 41 that matches the limiting post 5. The limiting notch 41 can be better limited by the limiting post 5 to control the opening angle of the support arm 2 relative to the frame fixing seat 1.

[0034] like Figure 2 , Figure 4 and Figure 5 As shown, in this utility model, a pusher elastic member 7 is provided between the limiting post 5 and the frame fixing seat 1 to push the limiting post 5 downward. Specifically, as shown... Figure 5As shown, in this embodiment, the fixed base 1 is provided with a through hole 12 for installing the limiting post 5. The through hole 12 is a hole with a larger upper part and a smaller lower part. The push elastic member 7 is sleeved on the outside of the limiting post 5, and one end abuts against the bottom cap of the limiting post 5, and the other end abuts against the frame fixed base 1. When the toggle block 61 moves the lifting base 62 to the second support surface 622 and contacts the limiting post 5, the push elastic member 7 pushes the limiting post 5 out, releasing the abutment between the limiting post 5 and the side wall of the limiting connecting rod 4. In this way, the support arm 2 can continue to rotate relative to the frame fixed base 1 to continue to open or close the window.

[0035] like Figure 1-3 As shown, the linkage mechanism of this embodiment further includes a short connecting rod 8 rotatably connected to the far end of the support arm 2, and a load-bearing rod 9, one end of which is hinged to the short connecting rod 8 and the other end of which is rotatably connected to the near end of the frame fixing seat 1. The middle part of the load-bearing rod 9 is rotatably connected to the middle part of the long rod 3. The frame fixing seat 1, the limiting connecting rod 4, the long rod 3, and the load-bearing rod 9 form a four-bar linkage structure, and the support arm 2, the long rod 3, the load-bearing rod 9, and the short connecting rod 8 also form a four-bar linkage structure. The linkage mechanism of this embodiment has a simple structure. The linkage mechanism and the frame fixing seat 1 and the support arm 2 form two four-bar linkages. This eliminates the need to set a sliding groove or slide rail on the frame fixing seat, allowing the support arm 2 to be opened and closed flexibly. Moreover, this hinge structure is less likely to clog the sliding groove or slide rail, making it easier to clean and extending the service life of the hinge.

[0036] Specifically, such as Figure 1 As shown in Figure 3, in one embodiment of this utility model, when the limiting post 5 abuts against the side wall near the frame end of the limiting link 4, the angle at which the support arm 2 opens relative to the frame fixing seat 1 is 90°. Of course, in actual production, the maximum angle at which the support arm 2 opens relative to the frame fixing seat 1 can also be limited by the installation position of the limiting post 5.

[0037] In this utility model, such as Figure 2-5 As shown, the frame fixing base 1 is equipped with an adjusting plate 10 for adjusting the installation position of the frame fixing base 1 on the window frame. The adjusting plate 10 is movably installed on the frame fixing base 1 along the axial direction of the frame fixing base 1 to adjust the gap between the window sash and the window frame, so that the window sash fits more tightly with the window frame after the window is closed, greatly improving the sealing effect of the window sash. Specifically, the adjusting plate 10 cooperates with the frame fixing base 1 through an eccentric rivet 13, thereby fine-tuning the left and right positions of the door and window frame installation to ensure that the gap between the casement door / window and the window frame reaches the optimal state.

[0038] Specifically, such as Figure 3-5 As shown, the free end 101 of the adjusting plate 10 is located below the lifting seat 62 and is used to support the lifting seat 62. Figure 2-3The lifting seat 62 of this embodiment is further provided with a protrusion 624 that protrudes downward relative to the first support surface 621 to support the first support surface 621. The protrusion 624 is used to abut against the window frame to raise the first support surface 621, so that the first support surface 621 can support the limiting post 5 protruding from the frame fixing seat 1, while maintaining the stability of the second support surface 622 structure and preventing its deformation. More specifically, the lifting seat 62 of this embodiment is provided with two protrusions 624, and a guide groove is formed between the two protrusions 624. The free end 101 of the adjusting plate 10 extends into the guide groove and slides left and right in the guide groove.

Claims

1. A positioning hinge, comprising a frame fixing base (1) and a bracket (2) for mounting a window sash, wherein a linkage mechanism is connected between the frame fixing base (1) and the bracket (2), characterized in that... The linkage mechanism includes a long rod (3) with one end hinged to the near end of the support arm (2), and a limit link (4) hinged between the other end of the long rod (3) and the frame fixing seat (1). A limit post (5) and a control structure (6) for controlling the limit post (5) to abut against the side wall of the limit link (4) are movably provided on the frame fixing seat (1).

2. The positioning hinge according to claim 1, characterized in that... The limiting post (5) is movably mounted on the frame fixing seat (1). The control structure (6) includes a lever (61) slidably mounted on the frame fixing seat (1). The bottom of the frame fixing seat (1) is provided with a lifting seat (62) connected to the lever (61). The bottom of the limiting post (5) abuts against the lifting seat (62) and rises or falls during the sliding process of the lifting seat (62).

3. The positioning hinge according to claim 2, characterized in that... The lifting seat (62) is provided with a first support surface (621) for abutting the limit post (5) when it rises to abutting the limit link (4) and a second support surface (622) for abutting the limit post (5) when it falls to a position where the top height of the limit post (5) is less than the bottom height of the limit link (4). A transition slope (623) is provided between the first support surface (621) and the second support surface (622).

4. The positioning hinge according to claim 2, characterized in that... The lifting seat (62) is an elastic arch plate.

5. The positioning hinge according to claim 1, characterized in that... The limiting link (4) is provided with a limiting notch (41) that matches the limiting post (5).

6. The positioning hinge according to claim 2, characterized in that... A pusher elastic element (7) is provided between the limiting post (5) and the frame fixing seat (1) to push the limiting post (5) downward.

7. The positioning hinge according to claim 1, characterized in that... The linkage mechanism also includes a short connecting rod (8) rotatably connected to the far end of the support arm (2) and a load-bearing rod (9) with one end hinged to the short connecting rod (8) and the other end rotatably connected to the near end of the frame fixing seat (1). The middle part of the load-bearing rod (9) is rotatably connected to the middle part of the long rod (3).

8. The positioning hinge according to claim 1, characterized in that... When the limiting post (5) abuts against the side wall of the near end of the limiting link (4), the angle at which the support arm (2) opens relative to the frame fixing seat (1) is 90°.

9. The positioning hinge according to claim 2, characterized in that... The frame fixing seat (1) is provided with an adjustment plate (10) for adjusting the installation position of the frame fixing seat (1) on the window frame.

10. The positioning hinge according to claim 9, characterized in that... The free end (101) of the adjusting plate (10) is located below the lifting seat (62) and is used to support the lifting seat (62).