Novel concealed three-dimensional hinge

Abstract

The utility model discloses a novel hidden three -dimensional hinge, including first shell, second shell, first inner shell, second inner shell, function pipe and connecting block, first inner shell is fixed in the first shell, and second inner shell is fixed on the second shell, and both ends of function pipe are covered and are established on the first inner shell, and connecting block is rotatably connected with function pipe, and second inner shell is rotatably connected with first inner shell and connecting block, and function pipe includes cylinder sleeve, piston, main core axle, compression spring, installation shaft, connecting pin shaft and mechanical damping device, and compression spring is covered on main core axle, and main core axle is located in first accommodating cavity, and mechanical damping device is located in second accommodating cavity, and mechanical damping device abuts with piston. Be equipped with mechanical damping device, therefore, provide buffer damping to the movement of piston through mechanical damping device, and the movement speed of piston plays the role of deceleration, replaces the hydraulic buffer device of existing, and hydraulic oil does not need to be added in the hinge, and it is favorable for reducing the cost of whole hinge.

Description

Technical Field

[0001] This utility model relates to a door and window hinge structure, and more particularly to a novel concealed three-dimensional hinge. Background Technology

[0002] Currently, hinges are widely used as hinge components for building doors and windows. To buffer the closing speed of doors and windows and improve safety, many existing hinges are hydraulic hinges. The closing speed is adjusted by controlling the flow rate of hydraulic oil in the oil chambers on both sides of the piston. For example, application number 202422530083.7 discloses a structure of the hydraulic pipe for a concealed three-dimensional hydraulic hinge assembly, where the flow rate of hydraulic oil on both sides of the piston is controlled by adjusting the oil needle. This type of hinge requires the injection of hydraulic oil during use, making it unsuitable for hinges without hydraulic oil. Summary of the Invention

[0003] The purpose of this invention is to provide a novel hidden three-dimensional hinge that can solve at least one of the above problems.

[0004] According to one aspect of this utility model, a novel concealed three-dimensional hinge is provided, comprising a first outer shell, a second outer shell, a first inner shell, a second inner shell, a functional tube, and a connecting block. The first inner shell is fixed inside the first outer shell, and the second inner shell is fixed on the second outer shell. Both ends of the functional tube are sleeved on the first inner shell. The connecting block is rotatably connected to the functional tube. The second inner shell is rotatably connected to the first inner shell and the connecting block. The functional tube includes a cylinder liner, a piston, a main spindle, a compression spring, a mounting shaft, a connecting pin, and a mechanical damping device. The piston is sleeved inside the cylinder liner. One end of the main spindle is connected to the piston via the connecting pin, and the other end extends out of the cylinder liner. Both ends of the mounting shaft pass through the piston and are fixed on the cylinder liner. The compression spring is sleeved on the main spindle. One side of the piston is a first accommodating cavity, and the other side is a second accommodating cavity. The main spindle is located in the first accommodating cavity, and the mechanical damping device is located in the second accommodating cavity, abutting against the piston.

[0005] The beneficial effects of this utility model are: by providing a mechanical damping device in the second accommodating cavity of the functional tube, the mechanical damping device provides buffer damping for the movement of the piston, thereby slowing down the movement speed of the piston. This replaces the existing hydraulic buffer device, eliminates the need to add hydraulic oil to the hinge, and helps to reduce the overall cost of the hinge.

[0006] In some embodiments, the functional tube further includes a retaining sleeve, which is fitted onto the outside of the cylinder liner and connected to the connecting block via a first pin. Thus, the retaining sleeve facilitates the connection between the functional tube and the connecting block.

[0007] In some embodiments, the mechanical damping device includes a buffer spring, one end of which abuts against the piston. Thus, the buffer spring, through its rebound force, acts on the piston, slowing its movement and achieving a door-closing buffering effect.

[0008] In some embodiments, the mechanical damping device includes a pneumatic damping tube, the cylinder of which is fixed within a second accommodating cavity, and the piston rod of which abuts against a piston. Thus, by providing damping to the piston through the pneumatic damping tube, the piston's movement speed can be slowed down, thereby buffering the closing of the door.

[0009] In some embodiments, the novel concealed three-dimensional hinge also includes a needle roller bearing and a directional fixing wheel. The needle roller bearing is sleeved on the outer side of one end of the cylinder liner, and the directional fixing wheel is sleeved on the other end of the main spindle. The needle roller bearing and the directional fixing wheel are respectively sleeved on both ends of the first inner housing. Thus, the installation of the functional tube on the first inner housing is facilitated by the needle roller bearing and the directional fixing wheel.

[0010] In some embodiments, a connecting plate is provided on one side of the second inner shell, and the bottom end of the connecting plate is rotatably connected to the first inner shell via a second pin. The connecting block is rotatably connected to the connecting plate via a third pin. Thus, by providing a connecting plate, the connection between the second inner shell and the first inner shell and the connecting plate can be facilitated, the rotation of the hinge can be facilitated, and the opening and closing function of the door leaf can be satisfied.

[0011] In some embodiments, the novel concealed three-dimensional hinge also includes a cap, which is fitted and fixed within the second accommodating cavity, and a mechanical damping device abuts against the cap. Thus, the cap facilitates the limiting installation of the mechanical damping device.

[0012] In some embodiments, the piston is provided with a helical groove and a vertical groove. The vertical groove is arranged along the length of the main spindle. The two ends of the mounting shaft pass through the helical groove and are fixed to the cylinder liner. The connecting pin is fixed to one end of the main spindle and cooperates with the vertical groove. Thus, under the guidance of the helical groove, the mounting shaft can make the piston rotate accordingly along the direction of the helical groove when it moves, achieving the effect of easy opening and powerful closing. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the novel hidden three-dimensional hinge of this utility model.

[0014] Figure 2 This is an exploded structural diagram of the novel concealed three-dimensional hinge of this utility model.

[0015] Figure 3 This is a schematic diagram of the functional tube in the novel concealed three-dimensional hinge of this utility model.

[0016] Figure 4 This is a cross-sectional structural schematic diagram of one embodiment of the functional tube in the novel concealed three-dimensional hinge of this utility model.

[0017] Figure 5 This is a cross-sectional structural schematic diagram of another embodiment of the functional tube in the novel concealed three-dimensional hinge of this utility model.

[0018] Figure 6 yes Figure 5 A schematic diagram of the explosion structure.

[0019] Figure 7 yes Figure 5 Schematic diagram of the structure inside the cylinder liner. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Reference Figures 1-7 A novel concealed three-dimensional hinge includes a first outer shell 1, a second outer shell 2, a first inner shell 3, a second inner shell 4, a functional tube 5, and a connecting block 6. The first inner shell 3 is fixed inside the first outer shell 1, and the second inner shell 4 is fixed on the second outer shell 2. Both ends of the functional tube 5 are sleeved on the first inner shell 3. The connecting block 6 is rotatably connected to the functional tube 5. The second inner shell 4 is rotatably connected to the first inner shell 3 and the connecting block 6. The functional tube 5 includes a cylinder liner 51, a piston 52, a main spindle 53, a compression spring 54, a mounting shaft 55, a connecting pin 56, and a mechanical damping device. The piston 52 is fitted inside the cylinder liner 51. One end of the main spindle 53 is connected to the piston 52 via a connecting pin 56, and the other end extends out of the cylinder liner 51. The two ends of the mounting shaft 55 pass through the piston 52 and are fixed on the cylinder liner 51. The compression spring 54 is fitted on the main spindle 53. One side of the piston 52 is a first accommodating cavity 511, and the other side is a second accommodating cavity 512. The main spindle 53 is located in the first accommodating cavity 511, and the mechanical damping device 57 is located in the second accommodating cavity 512. The mechanical damping device 57 abuts against the piston 52.

[0022] In use, this novel concealed three-dimensional hinge allows the second outer shell 2 to be fixed to the door frame, while the first outer shell 1 is installed on the door leaf. When the door leaf rotates, it drives the first outer shell 1 and the first inner shell 3 to rotate, causing the main spindle 53 to rotate as well. As the main spindle 53 rotates, the piston 52, connected by a connecting pin 56, rotates relative to the main spindle 53, thereby further compressing the compression spring 54.

[0023] The functional tube 5 also includes a fixing sleeve 58, which is sleeved on the outside of the cylinder liner 51. The fixing sleeve 58 is connected to the connecting block 6 via a first pin 7. The fixing sleeve 58 is fixedly sleeved on the cylinder liner 51; the first pin 7 facilitates the rotation of the connecting block 6.

[0024] like Figure 4 As shown, in one embodiment, the mechanical damping device 57 includes a buffer spring 571, one end of which abuts against the piston 52.

[0025] In this embodiment, when the door is closed, the compression spring 54 rebounds, pushing the piston 52 toward the buffer spring 571; as the door gradually closes, the buffer spring 571 is gradually compressed, and the degree of compression increases. At this time, the rebound force of the buffer spring 571 acts on the piston 52, providing damping force for the movement of the piston 52, slowing down the movement speed of the piston 52, and achieving the effect of door closing buffer.

[0026] like Figures 5-7 As shown, in another embodiment, the mechanical damping device 57 includes a pneumatic damping tube 572. The cylinder of the pneumatic damping tube 572 is fixed inside the second accommodating cavity 512, and the piston rod of the pneumatic damping tube 572 abuts against the piston 52. The pneumatic damping tube 572 is prior art, therefore its specific structure will not be described in detail. The pneumatic tube 572 uses air pressure to dampen the piston, slowing down the piston's movement speed, thereby buffering the door closing.

[0027] In this embodiment, when the door is closed, the compression spring 54 rebounds, pushing the piston 52 toward the buffer spring 571; as the door gradually closes, the piston rod of the pneumatic damping tube 572 acts on the piston 52, providing damping force for the movement of the piston 52, slowing down the movement speed of the piston 52, and achieving the effect of door closing buffer.

[0028] The new type of concealed three-dimensional hinge also includes a needle roller bearing 8 and a directional fixing wheel 9. The needle roller bearing 8 is sleeved on the outer side of one end of the cylinder liner 51, and the directional fixing wheel 9 is sleeved on the other end of the main spindle 53. The needle roller bearing 8 and the directional fixing wheel 9 are respectively sleeved on both ends of the first inner shell 3.

[0029] A connecting plate 41 is provided on one side of the second inner shell 4. The bottom end of the connecting plate 41 is rotatably connected to the first inner shell 3 via a second pin 10. The connecting block 6 is rotatably connected to the connecting plate 41 via a third pin 20. Therefore, the relative rotation between the first inner shell 3 and the second inner shell can be facilitated by the second pin 10 and the third pin 20.

[0030] The novel concealed three-dimensional hinge also includes a head 30, which is fitted and fixed inside the second accommodating cavity 512, and a mechanical damping device 57 abuts against the head 30. The head 30 is a screw structure, fixed to the inner wall of the second accommodating cavity 512 by threads.

[0031] The piston 52 is provided with a spiral groove 521 and a vertical groove 522. The vertical groove 522 is arranged along the length of the main spindle 53. The two ends of the mounting shaft 55 pass through the spiral groove 521 and are fixed on the cylinder liner 51. The connecting pin 56 is fixed to one end of the main spindle 53 and cooperates with the vertical groove 522.

[0032] During the opening or closing of the door, the main spindle 53 drives the piston 52 to rotate. Since the mounting shaft 5 is fixed on the cylinder liner 2, when the piston 52 rotates, under the action of the spiral groove 521 and the mounting shaft 55, the spiral groove 521 rotates relative to the mounting shaft 55 and moves along the spiral groove 521, that is, the piston 52 moves towards or away from the compression spring 54. When the door is closing, the mechanical damping effect of the buffer spring 571 or the pneumatic damping tube 572 slows down the movement speed of the piston 52 and the rotation speed of the main spindle 53, so that the door gradually decelerates from rapid closing. When the door is closed to about 10~30°, the speed slows down significantly, achieving the effect of quiet closing.

[0033] Therefore, the novel concealed three-dimensional hinge of this utility model replaces the existing hydraulic buffer with a mechanical damping device 57, eliminating the need to add hydraulic oil to the hinge, thus achieving energy saving and quiet closing.

[0034] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A novel concealed three-dimensional hinge, characterized in that, The system includes a first outer shell (1), a second outer shell (2), a first inner shell (3), a second inner shell (4), a functional tube (5), and a connecting block (6). The first inner shell (3) is fixed inside the first outer shell (1), and the second inner shell (4) is fixed on the second outer shell (2). The two ends of the functional tube (5) are sleeved on the first inner shell (3). The connecting block (6) is rotatably connected to the functional tube (5). The second inner shell (4) is rotatably connected to the first inner shell (3) and the connecting block (6). The functional tube (5) includes a cylinder liner (51), a piston (52), a main spindle (53), a compression spring (54), a mounting shaft (55), a connecting pin (56), and a mechanical damping device (57). The piston (52) is fitted inside the cylinder liner (51). One end of the main spindle (53) is connected to the piston (52) through the connecting pin (56), and the other end extends out of the cylinder liner (51). The two ends of the mounting shaft (55) pass through the piston (52) and are fixed on the cylinder liner (51). The compression spring (54) is fitted on the main spindle (53). One side of the piston (52) is the first accommodating cavity (511), and the other side is the second accommodating cavity (512). The main spindle (53) is located in the first accommodating cavity (511), and the mechanical damping device (57) is located in the second accommodating cavity (512). The mechanical damping device (57) abuts against the piston (52).

2. The novel concealed three-dimensional hinge according to claim 1, characterized in that, The functional tube (5) also includes a fixing sleeve (58), which is sleeved on the outside of the cylinder liner (51). The fixing sleeve (58) is connected to the connecting block (6) through a first pin (7).

3. The novel concealed three-dimensional hinge according to claim 2, characterized in that, The mechanical damping device (57) includes a buffer spring (571), one end of which abuts against the piston (52).

4. The novel concealed three-dimensional hinge according to claim 2, characterized in that, The mechanical damping device (57) includes a pneumatic damping tube (572), the cylinder of which is fixed in the second accommodating cavity (512), and the piston rod of which is in contact with the piston (52).

5. The novel concealed three-dimensional hinge according to claim 3 or 4, characterized in that, It also includes a needle roller bearing (8) and a directional fixing wheel (9). The needle roller bearing (8) is sleeved on the outer side of one end of the cylinder liner (51), and the directional fixing wheel (9) is sleeved on the other end of the main spindle (53). The needle roller bearing (8) and the directional fixing wheel (9) are respectively sleeved on both ends of the first inner shell (3).

6. The novel concealed three-dimensional hinge according to claim 5, characterized in that, A connecting plate (41) is provided on one side of the second inner shell (4). The bottom end of the connecting plate (41) is rotatably connected to the first inner shell (3) through a second pin (10). The connecting block (6) is rotatably connected to the connecting plate (41) through a third pin (20).

7. The novel concealed three-dimensional hinge according to claim 3 or 4, characterized in that, It also includes a head (30), which is fitted and fixed inside the second accommodating cavity (512), and the mechanical damping device (57) abuts against the head (30).

8. The novel concealed three-dimensional hinge according to claim 7, characterized in that, The piston (52) is provided with a spiral groove (521) and a vertical groove (522). The vertical groove (522) is arranged along the length direction of the main spindle (53). The two ends of the mounting shaft (55) pass through the spiral groove (521) and are fixed on the cylinder liner (51). The connecting pin (56) is fixed at one end of the main spindle (53) and cooperates with the vertical groove (522).

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