Foldable hinge and shower door
By designing a hinge connection and snap-fit structure for foldable hinges, the instability problem of hinges in the folded state is solved, enabling stable folding of doors or windows, improving service life and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-07
AI Technical Summary
The existing hinges are unstable when folded, and the moving door is prone to popping open, causing the door or window to collide with each other, affecting the service life and user experience.
Design a foldable hinge that connects a first hinge seat and a second hinge seat via a pivot. The second hinge seat has a first position and a second position, which can engage or disengage to stabilize the folded state of a door or window. The hinge includes a guide groove structure for the first and second engaging parts to ensure that the door or window does not collide when folded.
It achieves stability of the hinge in the folded state, preventing doors or windows from popping open, simplifying operation, improving user experience, and preventing doors or windows from colliding and being damaged.
Smart Images

Figure CN224093189U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hinge, especially a foldable hinge and shower door. BACKGROUND
[0002] Hinge is a component connecting two parts of an object and enabling the movement of the two parts. Generally, hinges are used for cabinet doors, windows, doors, etc. Hinges are devices that people often use in daily life, especially in indoor furniture such as doors and windows, which are essential. More hinges are usually used on folding doors.
[0003] Chinese patent document No. CN 103061627 B discloses a hinge, which comprises a first hinge fan and a second hinge fan, a first object to be installed and a second object to be installed are connected to the first hinge fan and the second hinge fan respectively, the first hinge fan and the second hinge fan are respectively hinged on both sides of the connecting fan, and
[0004] The first object to be installed is slidably connected to the first hinge fan; the first hinge fan has a sliding hole, and a sliding buckle is matched with the sliding hole, so that the first object to be installed slides on the first hinge fan through the sliding buckle. However, the hinge with the above structure is realized by mutual hinging, and the first hinge fan and the second hinge fan are respectively hinged on both sides of the connecting fan. Since there is no positioning between the first object to be installed and the second object to be installed and between the hinges, when the first object to be installed and the second object to be installed are opened and closed, they will collide with each other. In the long-term collision, the first object to be installed and / or the second object to be installed are easily damaged, or the hinge is detached, affecting the service life of the product and the user experience.
[0005] Chinese patent document No. CN 219241653 U discloses a folding type transfer hinge structure, which comprises two mutually hinged blades; a film is arranged between the blades; a film positioning shaft is arranged on the film; a film positioning hole matched with the film positioning shaft is arranged on the surface of one of the blades; and the film positioning shaft is inserted and fixed in the film positioning hole. Although when the door is closed, the two door bodies are turned around the hinge structure, and when the two blades are closed and collide, the impact force on the blades is reduced through the buffering of the film, achieving the effects of protecting the hinge and being quiet. However, the above structure makes the movable door body easily pop open after the two door bodies are turned, and the user needs to keep pushing the movable door body away when entering and leaving the shower room. The end away from the hinge still cannot avoid mutual collision, and the movable door body is easily damaged every time the door bodies collide with each other, especially for glass shower doors. SUMMARY
[0006] The utility model provides a foldable hinge which comprises a first hinge seat, a second hinge seat and a rotating shaft, the rotating shaft is located at the joint of the first hinge seat and the second hinge seat, and the first hinge seat is rotatably connected with the second hinge seat through the rotating shaft; the second hinge seat has a first position and a second position relative to the first hinge seat, the second hinge seat at the first position is clamped with the first hinge seat, and the second hinge seat at the second position is separated from the first hinge seat.
[0007] Further, the first hinge seat is provided with a first clamping part, the second hinge seat is provided with a second clamping part, and the first clamping part and the second clamping part are oppositely arranged.
[0008] The second clamping part is provided with a guide groove, and the first clamping part can be clamped into the guide groove.
[0009] Further, the first hinge seat comprises a first rotating edge, the first hinge seat is provided with a first contact surface, and one end of the first rotating edge is welded on the first contact surface.
[0010] Further, the other end of the first rotating edge is provided with a first mounting lug, the first rotating edge extends out of the first contact surface, the second hinge seat comprises a second mounting cover and a second mounting shaft, the second mounting cover is provided with a second hinged lug, the first mounting lug and the second hinged lug are arranged in a staggered manner and are connected through the second mounting shaft to form the first clamping part.
[0011] Further, the outer end surface of the first clamping part is provided in a circular arc transition curved surface.
[0012] Further, the second hinge seat comprises a second rotating edge, the second hinge seat is provided with a second contact surface, and one end of the second rotating edge is welded on the second contact surface.
[0013] Further, the other end of the second rotating edge is provided with a second mounting lug, the second rotating edge extends out of the second contact surface, the first hinge seat comprises a first mounting cover and a first mounting shaft, the first mounting cover is provided with a first hinged lug, the first hinged lug and the second mounting lug are arranged in a staggered manner and are connected through the first mounting shaft to form the second clamping part.
[0014] Further, the outer end surface of the second clamping part is provided in an S-shaped transition curved surface.
[0015] This utility model also provides a shower door, including a movable door, a fixed door, and a foldable hinge as described above, wherein the first hinge seat is fixedly installed on the movable door, and the second hinge seat is fixedly installed on the fixed door.
[0016] Furthermore, it also includes a winding shaft, which is installed at the joint between the movable door and the fixed door. Beneficial effects
[0017] The beneficial effects of adopting the technical solution of this utility model are as follows:
[0018] A pivot connects the first hinge seat and the second hinge seat, which are connected together by the pivot. The second hinge seat has a first position and a second position relative to the first hinge seat. When in the first position, the first hinge seat rotates around the pivot until the second hinge seat engages with the first hinge seat, and the hinge is in a folded state. At this time, the first hinge seat is engaged with the second hinge seat, and no matter how the user operates the movable door (or movable window) connected to the first hinge seat, the movable door (or movable window) will not collide with another fixed door (or fixed window), thus avoiding existing collisions. In the previous technology, the two doors were unstable when folded, and the movable door (or window) was prone to popping open. The user had to constantly operate the movable door (or window), and the two doors (or windows) would constantly collide with each other, affecting usability. When in the second position, the first hinge seat rotates in the opposite direction around the pivot, and the second hinge seat separates from the first hinge seat. The hinge naturally unfolds until the first and second hinge seats of the hinge come into contact with each other and return to the same horizontal line. At this time, the two doors (or windows) are in the closed state, which is simple and convenient and provides users with a good product experience. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a foldable hinge according to this utility model;
[0021] Figure 2 This is a utility model Figure 1 A cross-sectional view along the AA direction;
[0022] Figure 3 This is a schematic diagram of the connection between the first rotating edge and the second rotating edge in a foldable hinge according to this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the second hinge seat in a foldable hinge according to this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of a foldable hinge with a cover installed in it according to the present invention;
[0025] Figure 6 This is a structural schematic diagram of a shower door according to the present invention.
[0026] Explanation of the reference numerals in the figure:
[0027] 1. First hinge seat; 100. First contact surface; 101. First snap-fit part; 11. First mounting shaft; 12. First rotating edge; 121. First mounting ear; 13. First mounting cover; 131. First hinge ear; 2. Second hinge seat; 200. Second contact surface; 201. Second snap-fit part; 21. Second mounting shaft; 211. Guide groove; 22. Second rotating edge; 221. Second mounting ear; 23. Second mounting cover; 231. Second hinge ear; 3. Rotating shaft; 4. Movable door; 5. Fixed door; 6. Winding shaft. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0029] Please refer to Figures 1 to 5 A foldable hinge includes a first hinge base 1, a second hinge base 2, and a pivot 3. The pivot 3 is located at the joint between the first hinge base 1 and the second hinge base 2. The first hinge base 1 is rotatably connected to the second hinge base 2 via the pivot 3. The second hinge base 2 has a first position and a second position relative to the first hinge base 1. The second hinge base 2 in the first position is engaged with the first hinge base 1. The second hinge base 2 in the second position is separated from the first hinge base 1.
[0030] In this technical solution, the pivot 3 connects the first hinge seat 1 and the second hinge seat 2. The first hinge seat 1 and the second hinge seat 2 are connected together by the pivot 3. The second hinge seat 2 has a first position and a second position relative to the first hinge seat 1. When in the first position, the first hinge seat 1 rotates around the pivot 3 until the second hinge seat 2 engages with the first hinge seat 1, and the hinge is in a folded state. At this time, the first hinge seat 1 is engaged with the second hinge seat 2. No matter how the user operates the movable door (or movable window) connected to the first hinge seat 1, the movable door (or movable window) will not collide with another fixed door (or fixed window). This design avoids the instability of existing technology when the two doors are folded, where the movable door (or window) easily pops open, requiring the user to constantly operate the movable door (or window), causing the two doors (or windows) to collide and affect usability. When in the second position, the first hinge seat 1 rotates in the opposite direction around the pivot 3, and the second hinge seat 2 separates from the first hinge seat 1. The hinge naturally unfolds until the first hinge seat 1 and the second hinge seat 2 abut against each other and return to the same horizontal line. At this time, the two doors (or windows) are in the closed state, which is simple and convenient, giving users a good product experience.
[0031] Specifically, by Figure 2 and Figure 4 As shown, the first hinge seat 1 has a first engaging portion 101; the second hinge seat 2 has a second engaging portion 201, and the first engaging portion 101 and the second engaging portion 201 are arranged opposite to each other; the second engaging portion 201 has a guide groove 211, and the first engaging portion 101 can be engaged into the guide groove 211. In this technical solution, the first engaging portion 101 of the first hinge seat 1 is located on the second hinge seat 2, and the second engaging portion 201 of the second hinge seat 2 is located on the first hinge seat 1. The first engaging portion 101 and the second engaging portion 201 are arranged opposite to each other. When the first hinge seat 1 and the second hinge seat 2 are folded, the first engaging portion 101 of the first hinge seat 1 is engaged into the guide groove 211 of the second engaging portion 201 of the second hinge seat 2. The structure is simple, the design is ingenious, and the operation is simple, realizing the folded and fixed state of the first hinge seat 1 and the second hinge seat 2.
[0032] Depend on Figure 2 As shown, the first hinge seat 1 includes a first rotating edge 12 and a first contact surface 100. One end of the first rotating edge 12 is welded to the first contact surface 100. In this embodiment, one end of the first rotating edge 12 is welded to the first contact surface 100 of the first hinge seat 1, and the other end of the first rotating edge 12 is connected to the first locking part 101. When the first hinge seat 1 rotates, the first rotating edge 12 rotates along with it, driving the first locking part 101 to rotate, thus ensuring structural stability.
[0033] Furthermore, a specific embodiment of the first contact portion 101 is provided by Figures 2 to 5 As shown, the other end of the first rotating edge 12 is provided with a first mounting ear 121, and the first rotating edge 12 extends out of the first contact surface 100; the second hinge seat 2 includes a second mounting cover 23 and a second mounting shaft 21, the second mounting cover 23 is provided with a second hinge ear 231, the first mounting ear 121 and the second hinge ear 231 are misaligned and connected by the second mounting shaft 21 to form the first snap-fit part 101. The rotating shaft 3 passes through the first rotating edge 12. Both ends of the first rotating edge 12 can rotate through the rotating shaft 3. One end of the first rotating edge 12 is connected to the first contact surface 100, and the other end of the first rotating edge 12 is connected to the first locking part 101. When the first contact surface 100 rotates around the rotating shaft 3, it drives the first rotating edge 12 to rotate, thereby driving the first mounting ear 121 in the first locking part 101 to rotate. At this time, the second hinge ear 231 of the second mounting cover 23 of the second hinge seat 2 rotates in the opposite direction to the rotation direction of the first mounting ear 121, so that the gap of the guide groove 211 of the second locking part 201 is exposed and enlarged, so that the outer edge of the first locking part 101 can fit in the guide groove 211. Then, the first hinge seat 1 is released, the second hinge ear 231 of the second mounting cover 23 of the second hinge seat 2 returns to its original position, and the first locking part 101 is stably locked in the guide groove 211. It should be noted that the number of first rotating edges 12 is not limited. In this embodiment, there are two first rotating edges 12, which are spaced apart, making the structure more stable. Preferably, the first engaging part 101 is provided with an arc transition surface and moves along the guide groove 211 of the second engaging part 201 until it is engaged in the guide groove 211.
[0034] As shown in the figure, a specific embodiment of the second snap-fit part 201 is as follows: Figures 2 to 5 As shown, the second hinge seat 2 includes a second rotating edge 22 and a second contact surface 200. One end of the second rotating edge 22 is welded to the second contact surface 200. In this embodiment, one end of the second rotating edge 22 is welded to the second contact surface 200 of the second hinge seat 2, and the other end of the second rotating edge 22 is connected to the second locking part 201. When the second hinge seat 2 rotates, the second rotating edge 22 rotates along with it, driving the second locking part 201 to rotate, thus ensuring structural stability.
[0035] Furthermore, a specific embodiment of the second contact portion 201 is provided by Figures 3 to 5As shown, the other end of the second rotating edge 22 is provided with a mounting ear 221, and the second rotating edge 22 extends beyond the second contact surface 200. The first hinge seat 1 includes a first mounting cover 13 and a first mounting shaft 11. The first mounting cover 13 is provided with a first hinge ear 131. The mounting ear 221 and the first hinge ear 131 are offset and connected by the first mounting shaft 11 to form the second locking part 201. One end of the second rotating edge 22 is connected to the second contact surface 200, and the other end of the first rotating edge 12 is connected to the second locking part 201. The rotating shaft 3 passes through the second rotating edge 22. When the second contact surface 200 rotates around the rotating shaft 3, it drives the second rotating edge 22 to rotate, thereby driving the rotation of the second locking part 201, resulting in a stable structure. It should be noted that the number of second rotating edges 22 is not limited. In this embodiment, there are two second rotating edges 22, which are spaced apart. The two first rotating edges 12 and the two second rotating edges 22 are staggered. The rotating shaft 3 is inserted sequentially through the first rotating edge 12 and the second rotating edge 22, so that the first rotating edge 12 and the second rotating edge 22 are connected together, making the structure more stable and easy to install. The first mounting shaft 11 passes through the mounting ear 221 of the second rotating edge 22 and the first hinge ear 131 of the first mounting cover 13. The second rotating edge 22 is rotatably connected to the first mounting cover 13 through the first mounting shaft 11 to form the second snap-fit part 201. When the second rotating edge 22 rotates around the rotating shaft 3, it can drive the second snap-fit part 201 to rotate as well, making the structure stable. Preferably, the second snap-fit portion 201 is provided with an S-shaped transition surface, the guide groove 211 is located at the lower end of the second snap-fit portion 201, and the first snap-fit portion 101 slides along the upper end of the second snap-fit portion 201 to the guide groove 211 and snaps into the guide groove 211.
[0036] For the sake of structural simplicity and stability, by Figure 2 As shown, the structural schematic diagrams of the first hinge seat 1 and the second hinge seat 2 are presented. Figure 1 Similarly, the first hinge seat 1 and the second hinge seat 2 are mirror images of each other. Among them, Figure 5 In the first hinge seat 1, the structure of the first mounting cover 13 is the same as the structure of the second mounting cover 23 of the second hinge seat 2, and the structure of the first hinge ear 131 of the first mounting cover 13 in the first hinge seat 1 is the same as the structure of the second hinge ear 231 of the second mounting cover 23 in the second hinge seat 2.
[0037] Please refer to Figure 6This utility model also provides a shower door, including a movable door 4, a fixed door 5, and a foldable hinge as described above. The first hinge seat 1 is fixedly installed on the movable door 4, and the second hinge seat 2 is fixedly installed on the fixed door 5. In this technical solution, the movable door 4 and the fixed door 5 are joined together by the hinge. The first hinge seat 1 is fixedly installed on the movable door 4, and the second hinge seat 2 is fixedly installed on the fixed door 5. The first hinge seat 2 cannot rotate, while the first hinge seat 1 rotates with the movable door 4. By setting the hinge to fold, the movable door 4 can fold with the fixed door 5, avoiding the defect in the prior art where the movable door easily pops open, requiring the user to constantly push the movable door open when entering or leaving the shower room, and the end away from the hinge still inevitably collides with each other, easily damaging the movable door with each collision.
[0038] Specifically, a winding shaft 6 is also included between the movable door 4 and the fixed door 5. The winding shaft 6 is installed at the joint of the movable door 4 and the fixed door 5. The movable door 4 is rotatably connected to the fixed door through the winding shaft 6. When the movable door 4 rotates around the winding shaft 6, the first locking part 101 of the first hinge seat 1 rotates. However, since the second mounting cover 23 on the first locking part 101 is fixedly installed on the second contact surface 200, the first mounting ear 121 on the first locking part 101 is hinged to the second hinge ear 231 of the second mounting cover 23, which drives the first mounting ear 121 to rotate. The first locking part 101 can be locked in the guide groove 211 of the second locking part 201. The operation is simple and the structure is stable.
[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A foldable hinge, characterized in that, It includes a first hinge seat (1), a second hinge seat (2), and a pivot (3). The pivot (3) is located at the joint of the first hinge seat (1) and the second hinge seat (2). The first hinge seat (1) is rotatably connected to the second hinge seat (2) through the pivot (3). The second hinge seat (2) has a first position and a second position relative to the first hinge seat (1). The second hinge seat (2) in the first position is engaged with the first hinge seat (1). The second hinge seat (2) in the second position is separated from the first hinge seat (1).
2. A foldable hinge according to claim 1, characterized in that, The first hinge seat (1) is provided with a first snap-fit portion (101); the second hinge seat (2) is provided with a second snap-fit portion (201), and the first snap-fit portion (101) and the second snap-fit portion (201) are arranged opposite to each other; The second snap-fit part (201) is provided with a guide groove (211), and the first snap-fit part (101) can be snapped into the guide groove (211).
3. A foldable hinge according to claim 2, characterized in that, The first hinge seat (1) includes a first rotating edge (12), and the first hinge seat (1) is provided with a first contact surface (100). One end of the first rotating edge (12) is welded to the first contact surface (100).
4. A foldable hinge according to claim 3, characterized in that, The other end of the first rotating edge (12) is provided with a first mounting ear (121), and the first rotating edge (12) extends out of the first contact surface (100); the second hinge seat (2) includes a second mounting cover (23) and a second mounting shaft (21), the second mounting cover (23) is provided with a second hinge ear (231), the first mounting ear (121) and the second hinge ear (231) are misaligned and connected by the second mounting shaft (21) to form the first snap-fit part (101).
5. A foldable hinge according to claim 2 or 4, characterized in that, The outer end face of the first snap-fit part (101) is provided with a rounded transition surface.
6. A foldable hinge according to claim 2, characterized in that, The second hinge seat (2) includes a second rotating edge (22), and the second hinge seat (2) is provided with a second contact surface (200). One end of the second rotating edge (22) is welded to the second contact surface (200).
7. A foldable hinge according to claim 6, characterized in that, The other end of the second rotating edge (22) is provided with a second mounting ear (221), and the second rotating edge (22) extends out of the second contact surface (200); the first hinge seat (1) includes a first mounting cover (13) and a first mounting shaft (11), the first mounting cover (13) is provided with a first hinge ear (131), the second mounting ear (221) and the first hinge ear (131) are misaligned and connected by the first mounting shaft (11) to form the second snap-fit part (201).
8. A foldable hinge according to claim 2 or 7, characterized in that, The outer end face of the second snap-fit part (201) is provided with an S-shaped transition surface.
9. A shower door, comprising a movable door (4) and a fixed door (5), characterized in that, It also includes a foldable hinge as described in any one of claims 1 to 8, wherein the first hinge seat (1) is fixedly installed on the movable door (4) and the second hinge seat (2) is fixedly installed on the fixed door (5).
10. A shower door according to claim 9, characterized in that, It also includes a winding shaft (6), which is installed at the joint between the movable door (4) and the fixed door (5).
Citation Information
Patent Citations
A hinge
CN103061627B
Folding type transfer hinge structure and shower room door applying hinge structure
CN219241653U