Automatic locking and anti-falling hinge for a swing door
By designing the hinge base, rotating arm, and pin structure, the problems of easy damage and insufficient positioning of existing hinges were solved, thereby improving the stability and security of the door, reducing noise interference, and improving user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YILICHAO IND CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-19
AI Technical Summary
Existing hinges have a simple basic structure that is easily damaged and cannot provide sufficient security. Key parts are prone to fatigue fracture, and they cannot be positioned when the door is open, affecting the stability and security of the door.
A structure including a hinge seat, a rotating arm, a rotating hole, a track shaft, and a pin is designed. The pin is inserted into the inner wall of the slot for positioning. Combined with a return spring and a limiting plate, the stability and safety of the hinge during rotation are ensured.
It improves the stability of the door when it is closed, enhances residential safety, reduces noise interference, and improves user comfort.
Smart Images
Figure CN224379616U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hinge technology, and in particular to an automatic locking and anti-fall-off hinge for a swing door. Background Technology
[0002] Hinges are essential connecting and rotating components for all types of swing doors. As a device or part that connects the door leaf and the door frame, they enable the connected door leaf and door frame to rotate around the hinge axis, playing a vital role in the safety of opening and closing the door.
[0003] The existing hinges have a simple basic structure that is easily damaged and cannot provide sufficient safety. Furthermore, key parts such as the shaft hole connection are prone to fatigue fracture due to long-term exposure to high friction, which can lead to damage. In addition, the hinges cannot be positioned after rotation when the door is open, thus failing to guarantee their stability. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides an automatic locking anti-fall-off hinge for swing doors, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.
[0005] To achieve the above objectives, this application adopts the following technical solution: an automatic locking anti-fall-off hinge for a swing door, comprising a hinge seat one and a hinge seat two. The inner walls of both hinge seat one and hinge seat two are provided with square grooves, and the inner walls of the square grooves are provided with track grooves and rotating holes. The outer wall of hinge seat one has two symmetrically arranged slots. The inner wall of the rotating hole is rotatably connected to a track shaft two. The outer edge of track shaft two is rotatably connected to a rotating arm two. The middle part of rotating arm two is rotatably connected to rotating arm one via a rotating shaft. The inner wall of rotating arm one is rotatably connected to track shaft one. A ring is inserted into the outer edge of the rotating shaft. A pin is fixedly installed on the outer edge of the ring. One end of a return spring is fixedly connected to the outer edge of the pin. The other end of the return spring is fixedly connected to a limit plate.
[0006] In a preferred embodiment, both hinge seat one and hinge seat two have symmetrical mounting holes on their inner walls.
[0007] By adopting the above technical solution, it is easy to install hinge seat one and hinge seat two onto the wall and door respectively.
[0008] In a preferred embodiment, both track shaft one and track shaft two are slidably connected to the inner wall of the track groove.
[0009] By adopting the above technical solution, the hinge seat two installed on the door can drive the rotating arm two to rotate when it rotates, thereby turning the door.
[0010] In a preferred embodiment, the inner walls of both the side of the rotating arm one away from the track axis one and the side of the rotating arm two away from the track axis two are rotatably connected to a rotating shaft, and the two rotating shafts are respectively rotatably connected to the inner walls of two rotating holes.
[0011] By adopting the above technical solution, the rotating arm 1 and rotating arm 2 can be positioned during rotation, ensuring the stability of rotating arm 1 and rotating arm 2 during rotation and preventing them from easily shifting in position during rotation.
[0012] In a preferred embodiment, gaskets are installed at the contact positions of the second track shaft, the first track shaft, and the rotating shaft with the second rotating arm and the first rotating arm.
[0013] By adopting the above technical solutions, noise interference and friction can be reduced.
[0014] In a preferred embodiment, the first rotating arm has a through groove in its middle, and the second rotating arm is rotatably connected to the inner wall of the through groove in its middle.
[0015] By adopting the above technical solution, it is possible to ensure that the first rotating arm and the second rotating arm can rotate stably relative to each other, thereby ensuring the stability of operation. The rotating shaft is fixedly installed on the inner wall of the second rotating arm.
[0016] In a preferred embodiment, the top of the rotating shaft is symmetrically provided with four mating grooves, and the inner wall of the ring is symmetrically fixedly provided with four retaining strips, which are adapted to be inserted into the inner wall of the four mating grooves. The inner wall of the ring is in contact with the outer edge of the rotating shaft.
[0017] By adopting the above technical solution, the ring can be stably installed on the outside of the docking groove, ensuring that it will not easily detach.
[0018] In a preferred embodiment, the pin and the slot are on the same plane, and the limiting piece is slidably sleeved on the outer edge of the pin.
[0019] By adopting the above technical solution, the rotating shaft can be driven to rotate when the hinge seat 2 is rotated, thereby inserting the pin into the inner wall of the slot, which can then be used to position the hinge seat 2, greatly improving the stability of the door when it is closed, making it difficult to open even when subjected to strong vibrations, and greatly enhancing residential safety.
[0020] The beneficial effects of this application are:
[0021] This type of automatic locking anti-fall-off hinge for swing doors can drive a ring to rotate through a pivot, thereby inserting a pin into the inner wall of the slot. This can be used for two-positioning of the hinge seat, greatly improving the stability of the door when closed. Even if it encounters strong vibrations, it is not easy to open, greatly enhancing the safety of residents.
[0022] This type of automatic locking anti-fall-off hinge for swing doors uses shims to reduce interference and friction, effectively reducing noise and improving the user's living comfort. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this application;
[0024] Figure 2 This is a side view of the structure of this application;
[0025] Figure 3 This is a partial structural diagram of this application;
[0026] Figure 4 This is a schematic diagram showing the unfolded and partially enlarged structure of this application;
[0027] Figure 5 This is a schematic diagram of the unfolded structure of this application.
[0028] The following are the labels in the diagram: 1. Hinge seat one; 2. Hinge seat two; 3. Mounting hole; 4. Square groove; 5. Track groove; 6. Rotating hole; 7. Slot; 8. Rotating arm one; 9. Track shaft one; 10. Rotating arm two; 11. Rotating shaft; 12. Track shaft two; 13. Shim; 14. Connecting groove; 15. Ring; 16. Locking strip; 17. Pin; 18. Return spring; 19. Limiting piece. Detailed Implementation
[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0030] Reference Figure 1-5 An automatic locking anti-fall-off hinge for a swing door includes a hinge base 1 and a hinge base 2. The inner walls of both hinge base 1 and hinge base 2 are provided with square grooves 4, and the inner walls of the square grooves 4 are provided with track grooves 5 and rotating holes 6. The outer wall of hinge base 1 is symmetrically provided with two slots 7. The inner wall of the rotating hole 6 is rotatably connected to a track shaft 2 12. The outer edge of track shaft 2 12 is rotatably connected to a rotating arm 2 10. The middle part of rotating arm 2 10 is rotatably connected to a rotating arm 8 via a rotating shaft 11. The inner wall of rotating arm 2 18 is rotatably connected to a track shaft 1 9. The outer edge of rotating shaft 11 is inserted with a ring 15. The outer edge of ring 15 is fixedly installed with a pin 17. The outer edge of pin 17 is fixedly connected to one end of a return spring 18. The other end of return spring 18 is fixedly connected to a limit piece 19.
[0031] See Figure 1The inner walls of hinge seat 1 and hinge seat 2 are symmetrically provided with mounting holes 3, which makes it easy to install hinge seat 1 and hinge seat 2 onto the wall and door respectively.
[0032] See Figure 3 and Figure 4 Both track shaft 19 and track shaft 212 are slidably connected to the inner wall of track groove 5, so that when hinge seat 2 installed on the door rotates, it can drive rotating arm 210 to rotate, thereby rotating the door.
[0033] See Figure 3 and Figure 4 Rotating arm 8, on the side away from track axis 9, and rotating arm 10, on the side away from track axis 12, are both rotatably connected to rotating shafts 11. The two rotating shafts 11 are respectively rotatably connected to the inner walls of the two rotating holes 6, which can play a positioning role for rotating arm 8 and rotating arm 10 during rotation, ensuring the stability of rotating arm 8 and rotating arm 10 during rotation, and ensuring that they will not easily shift in position during rotation.
[0034] See Figure 4 and Figure 5 Gaskets 13 are installed at the contact points between track shaft 2 12, track shaft 1 9 and rotating shaft 11 and rotating arm 2 10 and rotating arm 1 8, so as to reduce noise interference and friction.
[0035] See Figure 4 and Figure 5 A through groove is provided in the middle of the rotating arm 8, and the middle of the rotating arm 10 is rotatably connected to the inner wall of the through groove, so that the rotating arm 8 and the rotating arm 10 can rotate stably relative to each other, thereby ensuring the stability of operation. The rotating shaft 11 is fixedly installed on the inner wall of the rotating arm 10.
[0036] See Figure 4 and Figure 5 The top of the rotating shaft 11 is symmetrically provided with four docking slots 14. The inner wall of the ring 15 is symmetrically fixed with four retaining strips 16, and the four retaining strips 16 are adapted to be inserted into the inner wall of the four docking slots 14. The inner wall of the ring 15 fits against the outer edge of the rotating shaft 11, so that the ring 15 can be stably installed on the outer side of the docking slot 14, ensuring that it will not easily detach.
[0037] See Figure 3 and Figure 4 The pin 17 and the slot 7 are on the same plane. The limiting piece 19 is slidably sleeved on the outer edge of the pin 17, so that when the hinge seat 2 is rotated, the rotating shaft 11 can be driven to rotate, thereby inserting the pin 17 into the inner wall of the slot 7, which can then be used to position the hinge seat 2, greatly improving the stability of the door when it is closed. Even if it encounters strong vibration, it is not easy to open, greatly enhancing the safety of the residence.
[0038] Working principle: When using this device, hinge seat 1 and hinge seat 2 can be fixedly connected to the wall and door respectively. Then, the door can be rotated to drive the rotating arm 2 10 to rotate on the inner wall of the rotating arm 1 8, thereby enabling the door to rotate stably. During rotation, the rotating shaft 11 can drive the ring 15 to rotate together, so that the pin 17 can be inserted into the inner wall of the slot 7, which can be used to position the hinge seat 2 2. This greatly improves the stability of the door when it is closed, and it is not easy to open even when it encounters strong vibrations, which greatly enhances the safety of residence.
[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A self-latching anti-swing hinge for a swing door, comprising a hinge seat one (1) and a hinge seat two (2), characterized in that, The inner walls of hinge seat 1 (1) and hinge seat 2 (2) are provided with square grooves (4), and the inner walls of square grooves (4) are provided with track grooves (5) and rotating holes (6). The outer walls of hinge seat 1 (1) are symmetrically provided with two slots (7). The inner wall of the rotating hole (6) is rotatably connected to track shaft 2 (12). The outer edge of track shaft 2 (12) is rotatably connected to rotating arm 2 (10). The middle part of rotating arm 2 (10) is rotatably connected to rotating arm 1 (8) through rotating shaft (11). The inner wall of rotating arm 1 (8) is rotatably connected to track shaft 1 (9). The outer edge of rotating shaft (11) is inserted with ring (15). The outer edge of ring (15) is fixedly installed with pin (17). The outer edge of pin (17) is fixedly connected to one end of return spring (18). The other end of return spring (18) is fixedly connected to limit piece (19).
2. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, The inner walls of both hinge seat one (1) and hinge seat two (2) are symmetrically provided with mounting holes (3).
3. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, Both track shaft one (9) and track shaft two (12) are slidably connected to the inner wall of the track groove (5).
4. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, The inner walls of the rotating arm one (8) away from the track axis one (9) and the rotating arm two (10) away from the track axis two (12) are rotatably connected to the rotating shafts (11), and the two rotating shafts (11) are respectively rotatably connected to the inner walls of the two rotating holes (6).
5. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, Gaskets (13) are installed at the contact positions of the second track shaft (12), the first track shaft (9) and the rotating shaft (11) with the second rotating arm (10) and the first rotating arm (8).
6. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, The first rotating arm (8) has a through groove in the middle, the second rotating arm (10) is rotatably connected to the inner wall of the through groove in the middle, and the rotating shaft (11) is fixedly installed on the inner wall of the second rotating arm (10).
7. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, The top of the rotating shaft (11) is symmetrically provided with four docking grooves (14), and the inner wall of the ring (15) is symmetrically fixed with four locking strips (16), and the four locking strips (16) are adapted to be inserted into the inner wall of the four docking grooves (14), and the inner wall of the ring (15) is in contact with the outer edge of the rotating shaft (11).
8. The automatic locking and anti-fall-off hinge for a swing door according to claim 1, characterized in that, The pin (17) and the slot (7) are on the same plane, and the limiting piece (19) is slidably sleeved on the outer edge of the pin (17).