Concealed hinge
Through the innovative design of the hidden hinge, the combination of cylindrical grooves and beveled strips achieves 145 degrees of opening, combining air springs and magnetic suction blocks, the problem of 90 degrees of opening occupies space, improving the practicality and safety of the hidden hinge.
Patent Information
- Application Number
- CN202422052617.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The opening angle of the existing concealed hinge is 90 degrees, causing the door body to occupy the passage space and hinder the passage of users or goods.
A hidden hinge is designed to allow the door body to open to 145 degrees through the combination of cylindrical grooves and beveled strips, and the door body is buffered and magnetically fixed through the cooperation of air springs and magnetic suction blocks, thereby enhancing convenience.
It realizes that the door body does not occupy the passage space when it is opened at 145 degrees, which is convenient for users or goods to pass through, and improves the convenience and safety of use.
Smart Images
Figure CN223075347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hinge structures, and more specifically, to a concealed hinge. Background Art
[0002] A hinge, also known as a hinge joint, is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or foldable materials. Hinge joints are mainly installed on doors and windows, while hinges are more installed on cabinets. Classified by material, they are mainly divided into stainless steel hinges and iron hinges. A concealed hinge is a type of hinge, generally applied to door bodies, and can be hidden inside the door body to enhance aesthetics.
[0003] The existing concealed hinges generally have an opening angle set to 90 degrees. After the door body is opened at 90 degrees, due to the certain thickness of the door body itself, the door body will inevitably block a part of the space of the passage, which is not conducive to the passage of users or goods. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a concealed hinge to solve the problem that in the prior art, setting the opening angle to 90 degrees is not conducive to the passage of users or goods.
[0005] The utility model provides the following technical solution: A concealed hinge includes a mounting strip, a door frame, and a door body. An installation hole is opened at the top of the mounting strip. A opening angle increasing mechanism is provided on the mounting strip. The opening angle increasing mechanism includes a side plate welded to the left side of the mounting strip. A strip-shaped groove is opened on the side surface of the side plate. A connecting member is movably connected to the right side of the strip-shaped groove. A threaded groove is opened on the side surface of the connecting member. A bolt is threadedly connected to the inner cavity of the threaded groove. The right side of the bolt is movably connected to the left side of the side plate. A through hole is opened at the top of the connecting member, and a cylindrical groove is formed on the inner surface of the connecting member.
[0006] Preferably, as the above technical solution, a long shaft rod is movably inserted into the inner cavity of the cylindrical groove. A connecting block is threadedly connected to the front surface of the long shaft rod. Bent arms are fixedly installed on the right sides of the long shaft rod and the connecting block.
[0007] Preferably, as the above technical solution, the bottom of the bent arm is fixedly connected to a mounting seat. The mounting seat is detachably connected to the outer wall of the door body. The mounting strip is detachably connected to the outer wall of the door frame.
[0008] Preferably, as the above technical solution, a movable strip is movably connected to the top of the connecting member. An air spring is fixedly installed on the top of the movable strip. An inclined strip plate is fixedly installed on the top of the air spring.
[0009] As an optimization of the above technical solution, a rubber sleeve is fixedly connected to the outer wall of the inclined panel, and a magnetic attraction block is fixedly installed on the outer wall of the inclined panel.
[0010] As an optimization of the above technical solution, the included angle between the inclined surface of the inclined panel and the horizontal plane is set to 45 degrees. A female threaded ring is fixedly connected to the bottom of the movable bar, and the outer wall of the female threaded ring is movably connected to the inner wall of the through hole.
[0011] As an optimization of the above technical solution, a positioning bolt is threadedly connected to the bottom of the female threaded ring, and the top of the positioning bolt is movably connected to the bottom of the connecting member.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] Through the design of the cylindrical groove in the present utility model, the long shaft rod can rotate in its inner cavity. With the overall limitation of the inclined panel, the door body can be opened by 145 degrees relative to the installation hole, avoiding the problem that the 90-degree opening of the door body will occupy a large space in the passage, facilitating the passage of users or goods, and improving the practicability of this structure. Through the cooperation of the air spring and the rubber sleeve, both can generate elastic deformation, buffering the impact force when the door body contacts the overall inclined panel, ensuring the safety of the door body. An iron block corresponding to the magnetic attraction block can be pre-installed on the door body. Through the cooperation of the magnetic attraction block and the iron block, the function of magnetically fixing the door body can be realized, further facilitating the passage of users or goods. Through the cooperation of the through hole, the female threaded ring and the positioning bolt, the movable bar is detachably connected to the connecting member, and the user can disassemble the whole movable bar, enabling the door body to be opened by more than 145 degrees. Description of the Drawings
[0014] Figure 1 is a perspective view of the present utility model;
[0015] Figure 2 is a schematic diagram of the separated structure of the side plate and the connecting member of the present utility model;
[0016] Figure 3 is a schematic diagram of the connection structure of the installation strip board and the opening degree lifting mechanism of the present utility model with the door frame and the door body respectively;
[0017] Figure 4 is Figure 3 the enlarged structure view at A in
[0018] Figure 5 is a schematic diagram of the structure of the long shaft rod and the connecting block of the present utility model;
[0019] Figure 6 is a schematic diagram of the bottom structure of the movable bar of the present utility model.
[0020] In the figure: 1. Installation strip board; 11. Installation hole; 12. Door frame; 13. Door body; 2. Opening elevation mechanism; 21. Side plate; 22. Strip groove; 23. Connector; 24. Cylindrical groove; 241. Long shaft rod; 242. Connection block; 243. Bent arm; 244. Mounting seat; 25. Bolt; 26. Through hole; 27. Movable strip; 271. Air spring; 272. Inclined strip board; 273. Rubber sleeve; 274. Magnetic attraction block; 275. Internal thread ring; 276. Positioning bolt. Specific implementation mode
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.
[0022] As Figures 1-6 shown, the present invention provides a technical solution: a concealed hinge, including an installation strip board 1, a door frame 12 and a door body 13. An installation hole 11 is opened at the top of the installation strip board 1. An opening elevation mechanism 2 is arranged on the installation strip board 1. The opening elevation mechanism 2 includes a side plate 21. The side plate 21 is welded to the left side of the installation strip board 1. A strip groove 22 is opened on the side surface of the side plate 21. A connector 23 is movably connected to the right side of the strip groove 22. A threaded groove is opened on the side surface of the connector 23. A bolt 25 is threadedly connected to the inner cavity of the threaded groove. The right side of the bolt 25 is movably connected to the left side of the side plate 21. A through hole 26 is opened at the top of the connector 23. A cylindrical groove 24 is formed on the inner surface of the connector 23. Through the design of the cylindrical groove 24, the long shaft rod 241 can rotate in its inner cavity. Limited by the inclined surface of the inclined strip board 272, the door body 13 can be opened by 145 degrees relative to the installation hole 11, avoiding the problem that the 90-degree opening of the door body 13 will occupy a large space in the passage, facilitating the passage of users or goods. Through the design of the strip groove 22, the threaded groove and the bolt 25, the side plate 21 and the connector 23 are detachably connected, facilitating the assembly and production work.
[0023] As an implementation mode in this embodiment, as Figure 3 , Figure 5As shown, a long shaft rod 241 is movably inserted into the inner cavity of the cylindrical groove 24. A connecting block 242 is threadedly connected to the front surface of the long shaft rod 241. Bent arms 243 are fixedly installed on the right sides of the long shaft rod 241 and the connecting block 242. A mounting seat 244 is fixedly connected to the bottom of the bent arm 243. The mounting seat 244 is detachably connected to the outer wall of the door body 13. The mounting strip 1 is detachably connected to the outer wall of the door frame 12. Insert the long shaft rod 241 into the inner cavity of the cylindrical groove 24, and then rotate and install the connecting block 242 at the end of the long shaft rod 241, so that the long shaft rod 241 can be rotationally limited in the inner cavity of the cylindrical groove 24. Through the design of the mounting seat 244, it can be installed on the door body 13 by means of an external screw, thereby facilitating the operator to rotate and open / close the door body 13.
[0024] As an implementation manner in this embodiment, as Figure 3 , Figure 4 , Figure 6 shown, a movable strip 27 is movably connected to the top of the connecting piece 23. An air spring 271 is fixedly installed on the top of the movable strip 27. An inclined strip plate 272 is fixedly installed on the top of the air spring 271. A rubber sleeve 273 is fixedly connected to the outer wall of the inclined strip plate 272. A magnetic attraction block 274 is fixedly installed on the outer wall of the inclined strip plate 272. The included angle between the inclined surface of the inclined strip plate 272 and the horizontal plane is set to 45 degrees. An internal thread ring 275 is fixedly connected to the bottom of the movable strip 27. The outer wall of the internal thread ring 275 is movably connected to the inner wall of the through hole 26. A positioning bolt 276 is threadedly connected to the bottom of the internal thread ring 275. The top of the positioning bolt 276 is movably connected to the bottom of the connecting piece 23. Through the cooperation of the air spring 271 and the rubber sleeve 273, they can both generate elastic deformation, which can buffer the impact force on the whole when the door body 13 contacts the inclined strip plate 272 and ensure the safety of the door body 13. An iron block corresponding to the magnetic attraction block 274 can be pre-installed on the door body 13. Through the cooperation of the magnetic attraction block 274 and the iron block, the function of magnetically fixing the door body 13 can be realized, which is convenient for users or goods to pass through. Through the cooperation of the through hole 26, the internal thread ring 275 and the positioning bolt 276, the movable strip 27 is detachably connected to the connecting piece 23, and the user can disassemble the whole movable strip 27, so that the door body 13 can be opened by more than 145 degrees.
[0025] Working principle: When in use, first insert the long shaft rod 241 into the inner cavity of the cylindrical groove 24, and then rotate and install the connecting block 242 at the end of the long shaft rod 241, so that the long shaft rod 241 can be rotationally limited in the inner cavity of the cylindrical groove 24. Immediately, install the mounting hole 11 on the door frame 12 through an external screw, and install the mounting seat 244 on the door body 13 through an external screw. The door frame 12 and the door body 13 can be rotatably connected through the mounting strip 1 and the opening degree lifting mechanism 2. Then, with the limitation of the inclined surface of the inclined strip plate 272, the door body 13 can be opened by 145 degrees relative to the mounting hole 11.
[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.
Claims
1. A concealed hinge, comprising a mounting strip plate (1), a door frame (12) and a door body (13), characterized in that: The top of the installation strip board (1) is provided with an installation hole (11). An opening degree lifting mechanism (2) is arranged on the installation strip board (1). The opening degree lifting mechanism (2) includes a side plate (21). The side plate (21) is welded to the left side of the installation strip board (1). A strip-shaped groove (22) is formed on the side surface of the side plate (21). A connecting piece (23) is movably connected to the right side of the strip-shaped groove (22). A threaded groove is formed on the side surface of the connecting piece (23). A bolt (25) is threadedly connected to the inner cavity of the threaded groove. The right side of the bolt (25) is movably connected to the left side of the side plate (21). A through hole (26) is formed at the top of the connecting piece (23). A cylindrical groove (24) is formed on the inner surface of the connecting piece (23).
2. The concealed hinge according to claim 1, wherein: A long shaft rod (241) is movably inserted into the inner cavity of the cylindrical groove (24). A connecting block (242) is threadedly connected to the front surface of the long shaft rod (241). Bent arms (243) are fixedly installed on the right sides of the long shaft rod (241) and the connecting block (242).
3. The concealed hinge according to claim 2, characterized in that: The bottom of the bent arm (243) is fixedly connected to a mounting seat (244). The mounting seat (244) is detachably connected to the outer wall of the door body (13). The installation strip board (1) is detachably connected to the outer wall of the door frame (12).
4. The concealed hinge according to claim 1, wherein: A movable strip (27) is movably connected to the top of the connecting piece (23). An air spring (271) is fixedly installed on the top of the movable strip (27). An inclined strip board (272) is fixedly installed on the top of the air spring (271).
5. The concealed hinge according to claim 4, wherein: A rubber sleeve (273) is fixedly connected to the outer wall of the inclined strip board (272). A magnetic attraction block (274) is fixedly installed on the outer wall of the inclined strip board (272).
6. The concealed hinge according to claim 5, characterized in that: The included angle between the inclined surface of the inclined strip board (272) and the horizontal plane is set to 45 degrees. The bottom of the movable strip (27) is fixedly connected to an internal thread ring (275). The outer wall of the internal thread ring (275) is movably connected to the inner wall of the through hole (26).
7. The concealed hinge according to claim 6, wherein: A positioning bolt (276) is threadedly connected to the bottom of the internal thread ring (275). The top of the positioning bolt (276) is movably connected to the bottom of the connecting piece (23).