Detachable linear hinge
By designing a detachable, single-piece hinge, automatic locking is achieved through the cooperation of spring plates and cam plates, solving the problem of traditional hinges lacking self-locking function, ensuring that the door panel and frame are tightly closed, and improving the stability of the device and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YIHEDA AUTOMATION CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional hinges have a simple structure and lack a self-locking function, which means that the door panel cannot be completely closed with the frame after closing, affecting the quality of work.
A detachable straight hinge was designed, which achieves automatic locking through the cooperation of spring, cam and concave wheel, and ensures concentricity through the tight fit of female and male shafts. The detachable design facilitates maintenance.
This achieves a tight seal between the door panel and the frame, enhancing the stability and safety of the device, reducing maintenance costs, and improving the user experience.
Smart Images

Figure CN224174413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge technology, and in particular to a detachable straight hinge. Background Technology
[0002] A hinge is a mechanical device, typically consisting of two or more interconnected parts, that allows the connected objects to rotate around a fixed axis, thereby enabling opening and closing. It is widely used in doors, windows, furniture, electronic equipment, and other fields, providing a flexible opening and closing mechanism.
[0003] Traditional hinges have a simple structure, using only a male shaft, tube spring, and female shaft to achieve opening and closing functions. However, this simple structural design lacks the necessary self-locking function, which means that the door panel connected to the device may not be able to completely close with the frame after closing, and there may still be a large gap, which seriously affects the quality of work.
[0004] Therefore, a detachable, straight hinge needs to be designed. Utility Model Content
[0005] To overcome the shortcomings of traditional hinges, such as simple structure and lack of necessary self-locking function, which prevents the door panel connected to the device from fully closing with the frame after closing, thus affecting the quality of work, the technical problem to be solved is to provide a detachable straight hinge.
[0006] The technical solution of this utility model is:
[0007] A detachable single-piece hinge, comprising:
[0008] male shaft;
[0009] A double-hook washer, wherein one end of the male shaft is movably inserted through the double-hook washer;
[0010] The female shaft is connected to the female shaft by the double-hook washer via the screw.
[0011] A concave wheel plate, wherein the male shaft is connected to the concave wheel plate near the double hook washer;
[0012] A cam plate, wherein the male shaft is connected to the cam plate near the concave wheel plate, and the concave wheel plate is adapted to the cam plate;
[0013] A spring plate, wherein the spring plate is disposed on the male shaft, and the spring plate is located on the side of the cam plate facing away from the concave wheel plate; and
[0014] The nut is provided on the male shaft, and the threaded end of the male shaft is threadedly connected to the nut. The nut is used to limit the concave wheel, the cam plate and the spring plate.
[0015] Furthermore, the through holes of the double-hook washer, the concave wheel, the cam, and the spring are all located on the same straight line.
[0016] Furthermore, the side of the cam plate facing the concave wheel plate has a protrusion, and the side of the concave wheel plate facing the cam plate has a recess that matches the protrusion of the cam plate.
[0017] Furthermore, the cam plate contacts the double-hook washer and is limited by the double-hook washer.
[0018] Furthermore, it also includes: a limiting washer, wherein the limiting washer is disposed between the double hook washer and the male shaft.
[0019] Furthermore, the limiting shim is provided with a groove, and the female shaft is provided with a protrusion that mates with the groove of the limiting shim.
[0020] Furthermore, it also includes: a friction plate, wherein the friction plate is disposed between the double-hook pad and the cam plate.
[0021] Furthermore, another friction plate is provided between the spring and the nut.
[0022] Furthermore, the female shaft has a circular hole inside for one end of the male shaft to enter, and the circular hole is tightly fitted with one end of the male shaft.
[0023] Furthermore, the number of the spring pieces is no less than three, and the spring pieces are connected end to end.
[0024] The beneficial effects of this utility model are as follows: 1. When the male shaft and female shaft move relative to each other to a specific angle, this utility model realizes the automatic locking function through the restoring thrust of the spring sheet and the cooperation of the cam sheet and the concave wheel sheet, which effectively enhances the stability and safety of the device and ensures the tightness of the closure between the door panel and the frame connected to the device.
[0025] 2. This utility model ensures the concentricity between the female shaft and the male shaft through the tight fit between the female shaft's circular hole and one end of the male shaft, thereby guaranteeing the smooth and stable operation of the device and improving the user experience.
[0026] 3. This utility model adopts a detachable design, which allows users to easily disassemble and maintain it when needed, which not only facilitates user use but also reduces maintenance costs and time. Attached Figure Description
[0027] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0028] Figure 2 This is an exploded view of the male shaft, female shaft, and screw of this utility model.
[0029] Figure 3 This is a three-dimensional structural diagram of the male shaft, spring, and nut of this utility model.
[0030] Figure 4 This is an exploded view of the limiting gasket, double hook gasket, and friction plate of this utility model.
[0031] The markings in the attached diagram are: 1-male shaft, 2-limiting washer, 3-double hook washer, 4-friction plate, 5-concave wheel plate, 6-cam plate, 7-spring plate, 8-nut, 9-female shaft, 10-screw. Detailed Implementation
[0032] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.
[0033] Example: A detachable single-piece hinge, such as Figures 1-4 As shown, it includes a male shaft 1, a double-hook washer 3, a concave wheel 5, a cam 6, a spring 7, a nut 8, a female shaft 9, and a screw 10. The double-hook washer 3 movably passes through one end of the male shaft 1. The double-hook washer 3 is connected to the female shaft 9 via the screw 10. The concave wheel 5 and the cam 6 are connected to the male shaft 1 near the double-hook washer 3. The concave wheel 5 and the cam 6 are fitted together. A spring 7 is provided on the male shaft 1, located on the side of the cam 6 facing away from the concave wheel 5. The male shaft 1 has threads, and the threaded end of the male shaft 1 is threadedly connected to the nut 8. The nut 8 is used to limit the concave wheel 5, the cam 6, and the spring 7. Plate 6 contacts and is limited by double-hook pad 3. The through holes of double-hook pad 3, concave wheel plate 5, cam plate 6 and spring plate 7 are all located on the same straight line. The side of cam plate 6 facing concave wheel plate 5 is provided with a protrusion, and the side of concave wheel plate 5 facing cam plate 6 is provided with a recess that matches the protrusion of cam plate 6. Here, there are no less than 3 spring plates 7, and the spring plates 7 are connected end to end. The design of multiple spring plates 7 can provide axial preload for cam plate 6, so that cam plate 6 and concave wheel plate 5 keep in contact, further improving the stability of the device.
[0034] A limiting shim 2 is provided between the double hook shim 3 and the male shaft 1. The limiting shim 2 has a groove, and the female shaft 9 has a protrusion that cooperates with the groove of the limiting shim 2. Here, the design of the limiting shim 2 can limit the female shaft 9 when the male shaft 1 and the female shaft 9 move relative to each other, so that the female shaft 9 can only rotate a certain angle, effectively preventing the frame and cover plate connected to the device from colliding during operation.
[0035] Friction plates 4 are provided between the double hook washer 3 and the cam plate 6, and between the spring plate 7 and the nut 8. The design of the friction plates 4 can prevent excessive compression between the nut 8 and the spring plate 7, and between the double hook washer 3 and the concave wheel plate 5, thereby effectively avoiding wear of the precision parts in the device and extending the service life of the device.
[0036] The female shaft 9 has a circular hole inside for one end of the male shaft 1 to enter, and the circular hole fits tightly with one end of the male shaft 1. This structural design, in which the circular hole of the female shaft 9 fits tightly with one end of the male shaft 1, effectively avoids the problem of poor concentricity between the female shaft 9 and the male shaft 1, ensuring smooth and stable operation of the device.
[0037] This device is a detachable, single-piece hinge that features a self-locking function during use. In operation, one end of the male shaft 1 is sequentially passed through the double-hook washer 3, the concave wheel 5, the cam 6, and the spring 7. Then, the nut 8 is connected to the male shaft 1, and tightening the nut 8 limits the movement of the double-hook washer 3, the concave wheel 5, the cam 6, and the spring 7. Next, one end of the male shaft 1 is inserted into the female shaft 9, allowing it to engage with the female shaft 9 through its circular hole. Finally, the female shaft 9 is connected to the double-hook washer 3 using the screw 10, thus completing the assembly of the device. When the male shaft 1 and the female shaft 9 move relative to each other, the male shaft 1 drives the cam plate 6, the spring plate 7 and the nut 8 to move relative to each other around the female shaft 9, the double hook washer 3 and the concave wheel plate 5. When the male shaft 1 and its cam plate 6, spring plate 7 and nut 8 rotate to 0 degrees or 360 degrees, the spring plate 7 returns from the compressed state. During the return process, the spring plate 7 applies a thrust to the cam plate 6, so that the protruding part of the cam plate 6 coincides with the concave part of the concave wheel plate 5. The concave wheel plate 5 plays a certain limiting role on the cam plate 6, thereby realizing the self-locking effect of the device. The operation ends here.
[0038] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.
Claims
1. A detachable straight hinge, characterized in that: include: Male axis (1); Double hook washer (3), one end of the male shaft (1) is movably inserted through the double hook washer (3); The female shaft (9) is connected to the double hook washer (3) by screws (10); Concave wheel (5), the male shaft (1) is connected to the concave wheel (5) near the double hook washer (3); Cam plate (6), the male shaft (1) is connected to the cam plate (6) near the concave wheel (5), the concave wheel (5) and the cam plate (6) are adapted to each other; A spring (7) is provided on the male shaft (1), and the spring (7) is located on the side of the cam plate (6) facing away from the concave wheel plate (5); and Nut (8), the male shaft (1) is provided with a thread, and the male shaft (1) is threaded to one end of the threaded end, and the nut (8) is used to limit the concave wheel (5), the cam (6) and the spring (7).
2. The detachable single-piece hinge according to claim 1, characterized in that: The through holes of the double hook washer (3), the concave wheel (5), the cam (6), and the spring (7) are all located on the same straight line.
3. A detachable single-piece hinge according to claim 2, characterized in that: The cam plate (6) has a protrusion on the side facing the concave wheel plate (5), and the concave wheel plate (5) has a recess on the side facing the cam plate (6) that matches the protrusion of the cam plate (6).
4. A detachable single-piece hinge according to claim 3, characterized in that: The cam plate (6) contacts the double hook washer (3) and is limited by the double hook washer (3).
5. A detachable single-piece hinge according to claim 4, characterized in that: It also includes: a limiting washer (2), wherein the limiting washer (2) is provided between the double hook washer (3) and the male shaft (1).
6. A detachable single-piece hinge according to claim 5, characterized in that: The limiting pad (2) is provided with a groove, and the mother shaft (9) is provided with a protrusion that cooperates with the groove of the limiting pad (2).
7. A detachable single-piece hinge according to claim 6, characterized in that: It also includes: a friction plate (4), wherein the friction plate (4) is disposed between the double hook pad (3) and the cam plate (6).
8. A detachable single-piece hinge according to claim 7, characterized in that: Another friction plate (4) is provided between the spring plate (7) and the nut (8).
9. A detachable single-piece hinge according to claim 8, characterized in that: The female shaft (9) has a circular hole inside for one end of the male shaft (1) to enter, and the circular hole is tightly fitted with one end of the male shaft (1).
10. A detachable single-piece hinge according to claim 9, characterized in that: The number of the spring pieces (7) is not less than 3, and the spring pieces (7) are connected end to end.