Three-dimensional adjustable multi-angle universal lower hinge device
By designing a three-dimensional adjustable multi-angle universal lower hinge device, the problems of profile compatibility and angle fixation in the existing technology are solved, realizing multi-angle adjustment and improved stability of windows.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ASSA ABLOY GUOQIANG SHANDONG HARDWARE TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-05
AI Technical Summary
Existing building door and window hinges cannot be adapted to various window profiles, and the opening angle is fixed, which cannot meet the needs of different scenarios, resulting in insufficient stability and installation flexibility.
Design a three-dimensional adjustable multi-angle universal lower hinge device. Through the combination of a base plate, movable plate A, movable plate B and L-shaped sash, and by using structures such as adjusting nails, eccentric nails and set screws, the three-dimensional adjustment of the window sash can be realized, which can be adapted to various profiles.
It achieves three-dimensional adjustment of the window sash, adapts to various profiles, meets multi-angle adjustment needs, and improves the stability and installation flexibility of the window.
Smart Images

Figure CN224200448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building door and window hinge technology, specifically to a three-dimensional adjustable, multi-angle universal lower hinge device. Background Technology
[0002] As the needs of different scenarios continue to change, people have different requirements for the opening angle of window sashes. Existing products on the market have fixed opening angles and can only meet the installation requirements of one type of window, making them difficult to adapt and meet the universality of different scenarios. The overlap of window profiles also varies, and the products cannot be adjusted, so different products can only be used for installation. This results in a wide variety of products and the overall stability of the window cannot be guaranteed. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a three-dimensional adjustable, multi-angle universal lower hinge device that can be adapted to various profiles on the market. It can achieve multi-angle adjustment according to the usage scenario, meet the needs of most customers in the market, and is suitable for widespread application.
[0004] This utility model is achieved through the following technical solution:
[0005] A three-dimensional adjustable, multi-angle universal lower hinge device is provided, comprising a base plate, a movable plate A, a movable plate B, and an L-shaped fan component.
[0006] The base plate has mounting countersunk holes at both ends, and a sliding groove and a guide groove that penetrate the base plate are respectively provided between the two mounting countersunk holes. The base plate also has an adjusting countersunk hole between the sliding groove and the guide groove, and an adjusting pin is installed in the adjusting countersunk hole. Clamping pieces are provided at the bottom of both ends of the base plate corresponding to the mounting countersunk holes, and are fixedly installed in the window frame groove by tightening pins and clamping pieces. An adjusting plate is provided below the sliding groove and the adjusting countersunk hole below the base plate. A slider that is slidably connected to the guide groove is provided in the guide groove below the base plate.
[0007] One end of the movable plate A is movably connected to the slider through an eccentric pin that passes through the guide groove, and the other end of the movable plate A is hinged to the vertical plate of the L-shaped fan through a hinge shaft.
[0008] One end of the movable plate B is riveted to one end of the adjusting plate through a fixed rivet that passes through the sliding groove. The other end of the movable plate B is hinged to the horizontal plate of the L-shaped fan through a swing arm plate. The other end of the adjusting plate is fixedly connected to the adjusting pin in the adjusting countersunk hole.
[0009] This solution connects the window sash and frame via a base plate and an L-shaped sash component. Movable plates A and B, along with adjusting screws and eccentric screws, work in conjunction with the base plate. Rotating the adjusting screws with a wrench moves the adjusting plate, which in turn moves the position of movable plate B, allowing for left-right adjustment of the window sash and adjustment of its opening angle. Rotating the eccentric screws with a wrench moves the window sash in the inward / outward direction, adjusting the window sash's seal. Rotating the set screws with a wrench presses against the hinge shaft, causing the threaded component to shift up and down, thus allowing for vertical adjustment of the window sash. This enables three-dimensional adjustment of the lower hinge mechanism, making it compatible with various window profiles on the market.
[0010] Furthermore, a threaded barrel with open ends and a hinge shaft is vertically fixed on one side of the upright plate of the L-shaped fan. A set screw is threaded into the upper end of the threaded barrel within its open end. The upper end face of the set screw has a polygonal groove that can be rotated with a wrench.
[0011] By turning the set screw with a wrench, it can press against the hinge shaft, and the thread will cause the L-shaped sash to shift up and down, thereby realizing the up and down adjustment of the window sash.
[0012] Preferably, a positioning block is also provided below the base plate in the guide groove, which is slidably connected to the guide groove and used to limit the contact of the slider.
[0013] The positioning block is engaged in the guide groove on the base plate to limit the movement distance of the slider, thereby limiting the opening angle of the window sash. Depending on the scenario requirements, the positioning block can be installed to achieve the conversion between 90° and 180° rotation.
[0014] Furthermore, movable plate A is positioned above movable plate B, and the two are hinged in an X-shape.
[0015] Furthermore, both ends of the base plate are respectively formed with protrusions that limit the clamping pieces downwards.
[0016] The clamping plate is fixed on the tightening nail. The bottom plate has protrusions at both ends to limit the clamping plate, making it easier for the clamping plate to lock the profile frame groove and hold the profile in place, making the installation more secure.
[0017] Furthermore, the horizontal plate end of the L-shaped fan is fitted with a fan clip via press-riveting.
[0018] The fan clip is rotatably riveted to the end of the horizontal plate of the L-shaped fan component. The fan clip can be engaged and positioned with the slot, making installation convenient.
[0019] Furthermore, the surface of the fan clip has polygonal slots that can be adjusted with a wrench to change its angle.
[0020] A polygonal slot is cut in the middle of the surface of the fan clip. The fan clip is rotated with a wrench to lock the fan slot in the profile, which is convenient for installation and fixation.
[0021] The beneficial effects of this utility model are:
[0022] This utility model connects the window sash and window frame via a base plate and an L-shaped sash component. Movable plates A and B, along with adjusting screws and eccentric screws, work in conjunction with the base plate. Rotating the adjusting screws with a wrench moves the adjusting plates, which in turn moves the position of movable plate B, allowing for left-right adjustment of the window sash and adjustment of its opening angle. Rotating the eccentric screws with a wrench moves the window sash in the indoor / outdoor direction, adjusting its seal. Rotating the set screws with a wrench presses against the hinge shaft, causing the threaded component to shift up and down, thus adjusting the window sash vertically. This achieves three-dimensional adjustability of the lower hinge device, making it compatible with various window profiles on the market.
[0023] This utility model has a simple structure and is quick to install. The lower hinge device is three-dimensionally adjustable and can be adapted to various profiles on the market. It can be adjusted at multiple angles according to the usage scenario, meeting the needs of most customers in the market and is suitable for widespread application. Attached Figure Description
[0024] Figure 1 This is an exploded view of the lower hinge device of this utility model.
[0025] Figure 2 This is a schematic diagram of the lower hinge device of this utility model.
[0026] Figure 3 This is a schematic diagram of the clamping plate and fan clamping plate mounting profile in this utility model.
[0027] Figure 4 This is a schematic diagram showing the rotation of the adjusting pin in this utility model.
[0028] Figure 5 This is a schematic diagram showing the minimum opening angle of the lower hinge device of this utility model.
[0029] Figure 6 This is a schematic diagram showing the maximum opening angle of the lower hinge device of this utility model.
[0030] As shown in the figure:
[0031] 1. Base plate; 1.1. Boss; 1.2. Guide groove; 1.3. Sliding groove; 2. Adjusting plate; 3. Positioning block; 4. Slider; 5. Clamping piece; 6. Tightening screw; 7. Movable plate A; 8. Eccentric screw; 9. Movable plate B; 10. Swing arm plate; 11. Sash clamp; 12. L-shaped sash piece; 12.1 Threaded barrel; 13. Set screw; 14. Hinge shaft; 15. Adjusting screw; 16. Fixing rivet; 17. Mounting countersunk hole; 18. Adjusting countersunk hole; 19. Window sash; 20. Window frame. Detailed Implementation
[0032] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.
[0033] like Figures 1-6 As shown, a three-dimensional adjustable multi-angle universal lower hinge device includes a base plate 1, a movable plate A7, a movable plate B9, and an L-shaped fan 12.
[0034] The base plate 1 has mounting countersunk holes 17 at both ends, and a sliding groove 1.3 and a guide groove 1.2 penetrating the base plate 1 are respectively formed between the two mounting countersunk holes 17. The base plate 1 also has an adjusting countersunk hole 18 between the sliding groove 1.3 and the guide groove 1.2, and an adjusting pin 15 is set in the adjusting countersunk hole 18. In this utility model, the adjusting pin 15 is also an eccentric pin. Turning the adjusting pin 15 with a wrench causes the adjusting plate 2 to shift, and the movable plate B... 9 is fixed to the adjusting plate 2 by the fixed rivet 16. The fixed rivet 16 slides in the sliding groove 1.3, thereby driving the L-shaped sash 12 to shift, so as to move the window sash 19 left and right, adjust the overlap of the window sash 19 left and right, and adjust the opening angle of the window sash 19 at the same time. The bottom of the base plate 1 is respectively installed with countersunk holes 17 and clamping pieces 5 are fixed to the clamping pieces 5 in the groove of the window frame 20 by tightening nails 6. The bottom of the base plate 1 is respectively formed with protrusions 1.1 that limit the clamping pieces 5 downward, which limit the clamping pieces 5 and make it easy for the clamping pieces 5 to lock the profile frame groove.
[0035] An adjusting plate 2 is provided below the base plate 1, below the sliding groove 1.2 and the adjusting countersunk hole 18. A slider 4 is provided below the base plate 1, inside the guide groove 1.2, and is slidably connected to the guide groove 1.2.
[0036] Movable plate A7 is positioned above movable plate B9 and the two are hinged in an X-shape. One end of movable plate A7 is movably connected to slider 4 via an eccentric pin 8 that passes through guide groove 1.2. The other end of movable plate A7 is hinged to the vertical plate of L-shaped fan 12 via hinge shaft 14. Fan clamp 11 is rotatably mounted on the horizontal plate end of L-shaped fan 12 by press riveting. The surface of fan clamp 11 has polygonal slots that can be adjusted with a wrench to adjust its angle.
[0037] One end of the movable plate B9 is riveted to one end of the adjusting plate 2 through the fixed rivet 16 that passes through the sliding groove 1.3. The other end of the movable plate B9 is hinged to the horizontal plate of the L-shaped sash 12 through the swing arm plate 10 to ensure that the window sash 19 has a smooth trajectory. The other end of the adjusting plate 2 is fixedly connected to the adjusting nail 15 in the adjusting countersunk hole 18.
[0038] The L-shaped fan 12 has a threaded barrel 12.1 with open ends that is inserted into the hinge shaft 14 on one side of the upright plate. The upper end of the threaded barrel 12.1 is threaded with a set screw 13 in its open end. The upper end face of the set screw 13 is recessed to form a polygonal hole groove that can be rotated with a wrench.
[0039] Below the base plate 1, within the guide groove 1.2, there is a positioning block 3 that is slidably connected to the guide groove 1.2 and serves to abut and limit the movement of the slider 4. The positioning block 3 is engaged in the guide groove 1.2 in the middle of the base plate 1, limiting the movement distance of the slider 4, thereby limiting the opening angle of the window sash 19. Depending on the scenario requirements, the positioning block can be installed to achieve the conversion between 90° and 180° rotation. The positioning block 3 can be placed according to the usage scenario requirements.
[0040] When the window sash 19 is opened, the slider 4 slides in the guide groove 1.2. When the slider 4 touches the positioning block 3, the opening angle of the window sash 19 reaches 90°. When the positioning block 3 is removed, the slider continues to slide, and the opening angle of the window sash 19 can reach 180°.
[0041] Turning the eccentric screw 8 with a wrench causes the movable plate A 7 to shift, which in turn causes the L-shaped sash 12 to shift, thus moving the window sash 19 in the indoor and outdoor directions and adjusting the sealing of the window sash 19. Turning the adjusting screw 15 with a wrench causes the adjusting plate 2 to shift. The movable plate B 9 and the adjusting plate 2 are fixed by the fixing rivet 16. The fixing rivet 16 slides in the sliding groove 1.3, thus causing the L-shaped sash 12 to shift, thus moving the window sash 19 left and right, adjusting the overlap of the window sash 19, and adjusting the opening angle of the window sash 19. Turning the set screw 13 with a wrench presses the hinge shaft 14, and the thread causes the L-shaped sash 12 to shift up and down, thus adjusting the up and down of the window sash 19.
[0042] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. A three-dimensional adjustable, multi-angle universal lower hinge device, characterized in that: Includes a base plate, movable plate A, movable plate B, and L-shaped fan components. The base plate has mounting countersunk holes at both ends, and a sliding groove and a guide groove that penetrate the base plate are respectively provided between the two mounting countersunk holes. The base plate also has an adjusting countersunk hole between the sliding groove and the guide groove, and an adjusting pin is installed in the adjusting countersunk hole. Clamping pieces are provided at the bottom of both ends of the base plate corresponding to the mounting countersunk holes, and are fixedly installed in the window frame groove by tightening pins and clamping pieces. An adjusting plate is provided below the sliding groove and the adjusting countersunk hole below the base plate. A slider that is slidably connected to the guide groove is provided in the guide groove below the base plate. One end of the movable plate A is movably connected to the slider through an eccentric pin that passes through the guide groove, and the other end of the movable plate A is hinged to the vertical plate of the L-shaped fan through a hinge shaft. One end of the movable plate B is riveted to one end of the adjusting plate through a fixed rivet that passes through the sliding groove. The other end of the movable plate B is hinged to the horizontal plate of the L-shaped fan through a swing arm plate. The other end of the adjusting plate is fixedly connected to the adjusting pin in the adjusting countersunk hole.
2. The three-dimensional adjustable multi-angle universal lower hinge device according to claim 1, characterized in that: The L-shaped fan has a threaded barrel with open ends that is inserted into the hinge shaft and fixed vertically on one side of the upright plate. The upper end of the threaded barrel is threaded with a set screw in its open end. The upper end of the set screw has a polygonal slot that can be rotated with a wrench.
3. The three-dimensional adjustable multi-angle universal lower hinge device according to claim 1, characterized in that: Below the base plate, in the guide groove, there is also a positioning block that is slidably connected to the guide groove and is used to limit the contact of the slider.
4. The three-dimensional adjustable multi-angle universal lower hinge device according to claim 1, characterized in that: Movable plate A is positioned above movable plate B, and the two are hinged in an X-shape.
5. The three-dimensional adjustable multi-angle universal lower hinge device according to claim 1, characterized in that: The base plate has protrusions at both ends that limit the clamping plates downwards.
6. The three-dimensional adjustable multi-angle universal lower hinge device according to claim 1, characterized in that: The horizontal plate of the L-shaped fan is fitted with a fan clip by pressing and riveting.
7. The three-dimensional adjustable multi-angle universal lower hinge device according to claim 6, characterized in that: The surface of the fan clip has polygonal slots that can be adjusted with a wrench to change its angle.