Hinge opening and closing pressure adjusting structure

Abstract

The utility model provides a hinge opening and closing pressure adjusting structure, and belongs to the technical field of hinges. The hinge opening and closing pressure adjusting structure solves the problems that an existing hinge assists in closing and adjusting of a door leaf difficultly and is inconvenient to use, and comprises a hinge body, a mounting blade A and a mounting blade B are arranged on the hinge body, a hinge plate is arranged between the mounting blade A and the mounting blade B, and a mounting base is arranged on the mounting blade A; symmetrical installation bosses are arranged at the two ends of the installation base, a spline shaft is arranged between the installation bosses, pressure springs are arranged at the two ends of the spline shaft, adjusting cavities are formed in the side walls of the installation bosses, pressing blocks and pressing plates which abut against each other are arranged in the adjusting cavities, and pressure bearing parts are arranged on the pressing plates and abut against the pressure springs. The stepless adjusting mechanism of the automatic feeding machine has the advantages that the adjustment is simple and convenient, the application range is wide, and the stepless adjustment is realized.

Description

Technical Field

[0001] This utility model belongs to the field of hinge technology, and specifically relates to a hinge opening and closing pressure adjustment structure. Background Technology

[0002] A hinge is a mechanical device used to connect two objects and allow them to rotate relative to each other. Commonly found in furniture or building components such as doors and windows, hinges typically assist in closing doors through built-in dampers, springs, or hydraulic devices. This provides a buffering force after the door opens, allowing it to close slowly and smoothly, preventing violent impacts. This design not only reduces noise and wear but also improves safety and convenience. As shown in patent number "CN214145120U," a return spring and clutch structure provide auxiliary pressure to the door leaf when closing, and the release of the return spring pressure causes the door leaf to close slowly and semi-automatically.

[0003] Conventional hinge auxiliary closing devices, such as hydraulic devices, will result in larger hinge sizes due to size limitations. Furthermore, hydraulic devices are difficult to adjust in daily use and cannot be easily adjusted to meet actual needs. This can lead to situations where the door closes too quickly or fails to assist in closing the door. Therefore, we developed a hinge with adjustable pressure that is easier to use. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a hinge opening and closing pressure adjustment structure that is easy to operate and provides uniform pressure release.

[0005] The objective of this utility model can be achieved through the following technical solution: A hinge opening and closing pressure adjustment structure, characterized in that it includes a hinge body, on which mounting blade A and mounting blade B are provided, a hinge plate is provided between mounting blade A and mounting blade B, a mounting seat is provided on mounting blade A, symmetrical mounting bosses are provided at both ends of the mounting seat, a spline shaft is provided between the mounting bosses, a pressure spring is provided at both ends of the spline shaft, an adjustment cavity is provided on the side wall of the mounting boss, a pressure block and a pressure plate are provided in the adjustment cavity, a pressure bearing part is provided on the pressure plate, the pressure bearing part abuts against the pressure spring, an adjustment bolt is provided on the side wall of the adjustment cavity, and the bottom of the adjustment bolt abuts against and presses against the pressure block.

[0006] In the above-mentioned hinge opening and closing pressure adjustment structure, the spline shaft has ratchet engagement components at both ends. The ratchet engagement components are provided with a fixed ratchet and a rotating ratchet. The fixed ratchet is provided with a positioning block, which is fitted into the mounting boss. The rotating ratchet is provided with an internal gear ring that engages with the spline shaft.

[0007] In the hinge opening and closing pressure adjustment structure described above, both the fixed ratchet and the rotating ratchet are provided with three equally spaced ratchet teeth, and each ratchet tooth is provided with a limiting platform.

[0008] In the hinge opening and closing pressure adjustment structure described above, a connecting groove is provided on the mounting boss, the pressure plate is placed in the connecting groove, and a detachable limiting plate is provided on the mounting boss. The limiting plate is placed at the top of the connecting groove, and the bottom of the limiting plate abuts against the pressure plate.

[0009] In the aforementioned hinge opening and closing pressure adjustment structure, a drive fork is provided on the spline shaft, and an auxiliary hinge plate is hinged to the top of the drive fork. The other end of the auxiliary hinge plate is hinged to the mounting blade B. In the aforementioned hinge opening and closing pressure adjustment structure, a guard plate is provided on the hinge A, and the guard plate limits the movement of the pressure block.

[0010] In the hinge opening and closing pressure adjustment structure described above, the pressure block is a symmetrical triangular plate, and the pressure block is provided with several guide rounded corners.

[0011] In the hinge opening and closing pressure adjustment structure described above, both ends of the spline shaft are provided with annular grooves, and each annular groove is provided with a retaining spring.

[0012] Compared with existing technologies, this hinge opening and closing pressure adjustment structure uses bolts on the hinge to adjust the pressure and control the auxiliary force when the hinge closes. The bolts control the pressure block and have a stepless adjustment function. While meeting the needs of the hinge, it reduces the compression of the pressure spring and makes the door close more gently. Combined with the rotation angle of the spline shaft when the hinge opens and closes, a limit platform of appropriate length is designed to prevent the moving ratchet from being over-rotated and causing the spring pressure to be accidentally released. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the hinge's opening and closing pressure adjustment mechanism.

[0014] Figure 2 This is a schematic diagram of the hinge's opening and closing pressure adjustment mechanism.

[0015] Figure 3 This is a schematic diagram of the hinge's opening and closing pressure adjustment mechanism.

[0016] Figure 4 This is a schematic diagram of the hinge's opening and closing pressure adjustment mechanism.

[0017] Figure 5 This is a schematic diagram of the hinge's opening and closing pressure adjustment mechanism.

[0018] In the diagram, 1. Hinge body; 2. Mounting blade A; 3. Mounting blade B; 4. Guard plate; 5. Auxiliary hinge plate; 6. Mounting base; 7. Hinge plate; 8. Adjusting bolt; 9. Mounting boss; 10. Pressure plate; 11. Pressure block; 12. Adjustment cavity; 13. Limiting plate; 14. Connecting groove; 15. Rotating ratchet; 16. Pressure spring; 17. Pressure bearing part; 18. Annular groove; 19. Spline shaft; 20. Drive fork; 21. Ratchet engagement assembly; 22. Guide fillet; 23. Fixed ratchet; 24. Snap ring; 25. Positioning block; 26. Internal gear ring; 27. Limiting platform; 28. Ratchet tooth. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 , 2 As shown in Figures 3, 4, and 5, this hinge opening and closing pressure adjustment structure includes a hinge body 1. The hinge body 1 has mounting blades A2 and B3, with a hinge plate 7 between them. A mounting seat 6 is located on mounting blade A2, with symmetrical mounting bosses 9 at both ends of the mounting seat 6. A spline shaft 19 is located between the mounting bosses 9, with pressure springs 16 at both ends of the spline shaft 19. An adjustment cavity 12 is formed on the side wall of the mounting bosses 9, containing a pressing block 11 and a pressure plate 10 that abut against each other. A pressure bearing part 17 is provided on the pressure plate 10, abutting against the pressure springs 16. A pressure bearing part 17 is also provided on the side wall of the adjustment cavity 12. There is an adjusting bolt 8. The bottom of the adjusting bolt 8 abuts and presses against the pressure block 11. When using, first install this hinge between the door leaf and the door frame, try opening the door leaf and observe the closing speed of the door leaf. When it is necessary to speed up and increase the force, rotate the adjusting bolt 8 to press the adjusting bolt 8 against the pressure block 11. The pressure block 11 then presses against the pressure plate and the pressure spring 16, thereby increasing the pressure of the spring. When it is necessary to reduce the speed, rotate the adjusting bolt in the opposite direction. The pressure spring 16 supports the pressure plate in the opposite direction. The pressure plate presses against the locking block, so that the pressure block 11 is always in contact with the adjusting bolt. The engagement length of the bolt is controlled by the installation length of the locking bolt, which controls the deformation range of the pressure spring 16, thereby controlling the speed of the hinge flipping.

[0021] Preferably, the spline shaft 19 has ratchet engagement components 21 at both ends. The ratchet engagement components 21 are provided with a fixed ratchet 23 and a rotating ratchet 15. The fixed ratchet 23 is provided with a positioning block 25, and the positioning block 25 is fitted into the mounting boss 9. The rotating ratchet 15 is provided with an internal gear ring 26 that engages with the spline shaft 19.

[0022] Preferably, both the fixed ratchet 23 and the rotating ratchet 15 are provided with three equally spaced ratchet teeth 28, and each ratchet tooth 28 is provided with a limiting platform 27.

[0023] Preferably, the mounting boss 9 has a connecting groove 14, the pressure plate 10 is placed in the connecting groove 14, and the mounting boss 9 has a detachable limiting plate 13, which is placed at the top of the connecting groove 14 and the bottom of the limiting plate 13 abuts against the pressure plate 10.

[0024] Preferably, a drive fork 20 is provided on the spline shaft 19. An auxiliary hinge plate 5 is hinged to the top of the drive fork 20, and the other end of the auxiliary hinge plate 5 is hinged to the mounting blade B3. When the hinge is unfolded, the drive fork 20 rotates with the hinge blade B, thereby driving the spline shaft 19 to rotate. When the spline shaft 19 rotates, it drives the rotating ratchet 15 to rotate. The limiting platforms 27 are engaged with each other, and the support spring is compressed. When the door is closed, the hinge rotates, and the fixed ratchet 23 and the rotating ratchet 15 rotate relative to each other until the limiting platform 27 is detached from the foundation. The upper surfaces of the ratchet teeth 28 contact each other. Under the support of the support spring, the two ratchets quickly mesh. The rotation of the rotating ratchet 15 causes the spline shaft 19 to rotate, which conforms to the hinge closing and the door closing.

[0025] Preferably, hinge A is provided with a guard plate 4, and the guard plate 4 limits the movement of the pressure block 11.

[0026] Preferably, the pressure block 11 is a symmetrical triangular plate, and the pressure block 11 is provided with several guide rounded corners 22. The guide rounded corners 22 at the bottom of the triangular plate make it easier to rotate when adjusting the pressure. The symmetrical structure makes the pressure block 11 more convenient to use and install without special installation angle. When the hinge is at its opening and closing limit, the limiting platforms 27 collide with each other.

[0027] Preferably, both ends of the spline shaft 19 are provided with annular grooves 18, and each annular groove 18 is provided with a retaining ring 24.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0029] Although this document frequently uses terms such as hinge body 1, mounting blade A2, mounting blade B3, guard plate 4, auxiliary hinge plate 5, mounting base 6, hinge plate 7, adjusting bolt 8, mounting boss 9, pressure plate 10, pressure block 11, adjusting cavity 12, limiting plate 13, connecting groove 14, rotating ratchet 15, pressure spring 16, pressure bearing part 17, annular groove 18, spline shaft 19, drive fork 20, ratchet engagement assembly 21, guide fillet 22, fixed ratchet 23, snap ring 24, positioning block 25, internal gear ring 26, limiting platform 27, and ratchet tooth 28, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A hinge opening and closing pressure adjustment structure, characterized in that, The device includes a hinge body (1), on which mounting blades A (2) and B (3) are provided. A hinge plate (7) is provided between the mounting blades A (2) and B (3). A mounting seat (6) is provided on the mounting blade A (2). Symmetrical mounting bosses (9) are provided at both ends of the mounting seat (6). A spline shaft (19) is provided between the mounting bosses (9). A pressure spring (16) is provided at both ends of the spline shaft (19). An adjustment cavity (12) is provided on the side wall of the mounting boss (9). A pressure block (11) and a pressure plate (10) that abut against each other are provided in the adjustment cavity (12). A pressure bearing part (17) is provided on the pressure plate (10). The pressure bearing part (17) abuts against the pressure spring (16). An adjustment bolt (8) is provided on the side wall of the adjustment cavity (12). The bottom of the adjustment bolt (8) abuts against and squeezes the pressure block (11).

2. The hinge opening and closing pressure adjustment structure according to claim 1, characterized in that, The spline shaft (19) has ratchet engagement components (21) at both ends. The ratchet engagement components (21) are provided with a fixed ratchet (23) and a rotating ratchet (15). The fixed ratchet (23) is provided with a positioning block (25), and the positioning block (25) is fitted into the mounting boss (9). The rotating ratchet (15) is provided with an internal gear ring (26) that engages the spline shaft (19).

3. The hinge opening and closing pressure adjustment structure according to claim 2, characterized in that, Both the fixed ratchet (23) and the rotating ratchet (15) are provided with three equally spaced ratchet teeth (28), and each ratchet tooth (28) is provided with a limiting platform (27).

4. The hinge opening and closing pressure adjustment structure according to claim 1, characterized in that, The mounting boss (9) is provided with a connecting groove (14), the pressure plate (10) is placed in the connecting groove (14), the mounting boss (9) is provided with a detachable limiting plate (13), the limiting plate (13) is placed at the top of the connecting groove (14), and the bottom of the limiting plate (13) abuts against the pressure plate (10).

5. The hinge opening and closing pressure adjustment structure according to claim 1, characterized in that, The spline shaft (19) is provided with a drive fork (20), and an auxiliary hinge plate (5) is hinged to the top of the drive fork (20). The other end of the auxiliary hinge plate (5) is hinged to the mounting blade B (3).

6. The hinge opening and closing pressure adjustment structure according to claim 1, characterized in that, The mounting blade A (2) is provided with a guard plate (4), and the guard plate (4) limits the movement of the pressure block (11).

7. The hinge opening and closing pressure adjustment structure according to claim 1, characterized in that, The pressure block (11) is a symmetrical triangular plate, and the pressure block (11) is provided with several guide radii (22).

8. The hinge opening and closing pressure adjustment structure according to claim 1, characterized in that, Both ends of the spline shaft (19) are provided with annular grooves (18), and each annular groove (18) is provided with a retaining ring (24).

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