Slow door closing

Abstract

This application relates to a slow-closing door, comprising a horizontally arranged horizontal door frame, a vertically arranged vertical door frame, and a door body. The horizontal and vertical door frames are perpendicular to each other, with one end of the horizontal door frame installed at the corresponding end of the vertical door frame. The door body is located in the area between the horizontal and vertical door frames. A mounting cavity is provided in the end of the horizontal door frame near the vertical door frame, and a slow-closing device is installed within the mounting cavity. The slow-closing device includes a mounting base, a buffer mechanism, a rotating pressing mechanism, and an elastic mechanism. The mounting base has, in a transverse direction, sequentially connected first cavity for installing the buffer mechanism, second cavity for installing the rotating pressing mechanism, and third cavity for installing the elastic mechanism. This application allows for relative independence yet close cooperation between the components, resulting in high relative stability after installation and minimizing the likelihood of jamming, collisions, or wear between parts.

Description

Technical Field

[0001] This application relates to the field of doors, and more particularly to a slow-closing door. Background Technology

[0002] Slow-closing doors are used in some public places, offices, and individual homes. Their main purpose is to slow down the automatic closing process after the door has opened, so as to minimize the door from swinging back and forth or even making a loud noise due to the large force required to return to its original position.

[0003] Traditional soft-closing doors generally consist of a horizontal door frame, two vertical door frames, and a door body. The horizontal and vertical door frames are perpendicular to each other. When there is only one horizontal door frame, it is usually installed at the top of the door body, while the vertical door frames are installed on the left and right sides of the door body respectively. The two ends of the horizontal door frame are installed at the corresponding ends of the vertical door frames. The door body is located in the area between the horizontal and vertical door frames. The door body usually has a pivot installed on its top edge near the vertical door frame, which is rotatably connected to the horizontal door frame. In order to achieve the soft-closing effect, a buffer hinge is usually installed between the horizontal door frame and the door body.

[0004] For example, a buffer hinge and a revolving door with Chinese patent announcement number CN220599547U mainly include a cam component, a spring top component, a main elastic component, and a linkage mechanism. The cam mechanism and the linkage mechanism are linked by a rotating shaft assembly. The top of the spring top component has a hole, and a ball is installed in the hole by a spring top. The ball abuts against the cam component, and the main elastic component is topped on the spring top component.

[0005] The inventors believe that although this type of buffer hinge has a certain effect on slowing down the closing, the connection between the connecting rod and the cam is made by rotating the shaft, and the spring top part cooperates with the cam part through the ball bearing. In the long run, the wear between the connecting rod and the shaft is relatively large, and the jamming feeling is more obvious. At the same time, the cooperation design between the ball bearing and the cam part is relatively complex and the stability is relatively poor. Long-term use or improper assembly can easily lead to product collision and wear between the spring top part and the cam part. Summary of the Invention

[0006] In order to ensure that each component has relative independence while also having close cooperation with each other, and that each component has high relative stability after installation, so as to avoid easy jamming, collisions, wear and tear between parts.

[0007] This application provides a slow-closing door, which adopts the following technical solution:

[0008] A slow-closing door includes a horizontally arranged horizontal door frame, a vertically arranged vertical door frame, and a door body. The horizontal and vertical door frames are perpendicular to each other, with one end of the horizontal door frame mounted on the corresponding end of the vertical door frame. The door body is located in the area between the horizontal and vertical door frames. A mounting cavity is provided in the end of the horizontal door frame near the vertical door frame, and a slow-closing device is installed in the mounting cavity. The slow-closing device includes a mounting base, a buffer mechanism, a rotating pressing mechanism, and an elastic mechanism. The mounting base has, in a horizontal direction, sequentially connected first cavity for mounting the buffer mechanism, second cavity for mounting the rotating pressing mechanism, and third cavity for mounting the elastic mechanism. The rotating pressing mechanism includes, in a horizontal direction, a first side block, a rotating platform, and a second side block, sequentially arranged in the second cavity. The first side block is near the buffer mechanism and connected to it, and the second side block is near the elastic mechanism and connected to it. The rotating platform is connected to the door body via a rotating shaft connector. The rotating platform includes a mounting base... The cavity contains a first base, a second base, and a third base arranged vertically in sequence. A first end shaft is located on the end face of the first base away from the second base, near the elastic mechanism. The first end shaft is rotatably mounted within the second cavity. A second end shaft is located on the end face of the third base away from the second base, near the elastic mechanism. The second end shaft is fitted and installed with a rotating shaft connector. Each of the first, second, and third bases includes a triangular base with three sides: a first side, a second side, and a third side. The first and second sides form a apex on the side of the buffer mechanism, and the third side forms a base on the side of the elastic mechanism with both the first and second sides. A transition fillet is provided at the apex and both base corners. An arc-shaped transition section is provided on the side of the first and second sides near the third side, connecting the corresponding base corners. The areas of the first and third bases are both larger than the area of ​​the second base.

[0009] In some embodiments, the mounting base includes a rotating shaft seat and a pressure cap. The rotating shaft seat has a mounting opening at the center of its end face away from the rotating shaft connector. The pressure cap is installed at the mounting opening. The end face of the pressure cap facing the rotating platform is sequentially provided with a first assembly groove for mounting a first side top block, a second assembly groove for rotating the rotating platform, and a third assembly groove for mounting the second side top block. The bottom of the second assembly groove has a rotating groove for rotating the first end shaft. Symmetrically arranged on opposite sides along the longitudinal direction within the second assembly groove are first limiting grooves that restrict the maximum rotational stroke of the rotating platform. Each first limiting groove includes a first arc-shaped segment and a first limiting segment connected to and inclined to the first arc-shaped segment. The first arc-shaped segment is close to the first side top block. On one side, the first limiting segment is located away from the first side top block, and the center of the first arc segment is collinear with the rotation axis of the rotating table; the end face of the second cavity away from the pressure cover is sequentially connected in the transverse direction with a fourth assembly groove for mounting the first side top block, a fifth assembly groove for rotating the rotating table, and a sixth assembly groove for mounting the second side top block; in the fifth assembly groove, the two opposite sides along the longitudinal direction are respectively symmetrically provided with second limiting grooves that limit the maximum rotation stroke of the rotating table. The second limiting groove includes a second arc segment and a second limiting segment connected to the second arc segment and inclined. The second arc segment is closer to the second side top block, and the second limiting segment is located away from the first side top block. The center of the second arc segment is collinear with the rotation axis of the rotating table.

[0010] In some embodiments, the first side top block includes a first mounting base and a first abutment base. The first abutment base is disposed on the end face of the first mounting base facing the rotating platform. An arc-shaped first protrusion is disposed in the middle of the end face of the first abutment base facing the rotating platform. The first protrusion abuts against the transition fillet at the corresponding apex corner of the first base and the third base. An arc-shaped second protrusion is disposed in the middle of the first protrusion. The second protrusion abuts against the transition fillet at the corresponding apex corner of the second base.

[0011] In some embodiments, the buffer mechanism includes a buffer seat and at least one damping rod, the damping rod being installed between the buffer seat and the first side top block, and an adjustment cavity being provided in the buffer seat, with an adjustment component installed in the adjustment cavity.

[0012] In some embodiments, the adjustment assembly includes a longitudinal adjustment slider for longitudinal displacement within the adjustment cavity, a lateral adjustment slider, and a longitudinally arranged adjustment screw. The longitudinal adjustment slider is located on the side of the adjustment cavity away from the damping rod. The damping rod is mounted on the lateral adjustment slider. An adjustment hole communicating with the adjustment cavity is provided laterally on the buffer seat, and the lateral adjustment slider is slidably assembled in the adjustment hole. The longitudinal adjustment slider includes a longitudinal slider base and a first wedge platform. The first wedge platform is disposed on the end face of the longitudinal slider base facing the lateral adjustment slider, and a first inclined surface is provided on the first wedge platform. The lateral adjustment slider includes a lateral slider base and a second wedge platform. The second wedge platform is disposed on the end face of the lateral slider base facing the longitudinal adjustment slider, and a second inclined surface is provided on the second wedge platform. The first inclined surface and the second inclined surface are slidably engaged. Both the buffer seat and the longitudinal adjustment slider are longitudinally provided with coaxial threaded holes, and the adjustment screw is threadedly assembled in the threaded holes of the buffer seat and the longitudinal adjustment slider.

[0013] In some embodiments, the second side top block includes a second mounting base and a second abutment base. The second abutment base is disposed on the end face of the second mounting base facing the rotating platform. A third protrusion is disposed on the end face of the second abutment base facing the rotating platform. Abutment grooves are disposed on the end faces of the third protrusion and the second abutment base located on opposite vertical sides of the third protrusion. An arc-shaped groove is disposed in the middle of the abutment groove. A third arc-shaped segment is disposed in the abutment groove located on opposite sides of the corresponding arc-shaped groove. The third arc-shaped segments in the two abutment grooves of the second abutment base abut against the transition rounded corners of the corresponding bottom corners of the first base and the third base, respectively. The third arc-shaped segments in the abutment groove of the third protrusion abut against the transition rounded corners of the corresponding bottom corners of the second base, respectively.

[0014] In some embodiments, the elastic mechanism includes a spring support and a spring, with the spring mounted between the spring support and a second mounting base. The second mounting base has a spring positioning seat on its end face facing the spring for positioning the spring.

[0015] In some embodiments, the pivot connector includes a pivot support, a third end shaft, and a fixed seat. The third end shaft is disposed on the pivot support facing the rotating table. The mounting base is provided with a shaft hole communicating with the second cavity. The third end shaft passes through the shaft hole and is adapted to be installed with the second end shaft. The fixed seat is disposed on the pivot support away from the rotating table and is fixedly connected to the door body.

[0016] In summary, this application includes at least one of the following beneficial technical effects: by designing the rotating pressing mechanism, the first side top block, the rotating platform, and the second side top block are relatively independent and in relative contact with each other, so that each component has both relative independence and close cooperation. At the same time, the redesign of the overall structure of the rotating platform, using the structural shape of the first base, the second base, and the third base, can effectively prevent the first side top block and the second side top block from deflecting during contact with the rotating platform, and the stability along the axial direction of the rotating platform is better. This makes the relative stability of each component after installation higher, and prevents easy jamming, collisions, wear and tear between parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a slow-closing door according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of a slow-closing door according to an embodiment of this application, used to show the installation position of the slow-closing device.

[0019] Figure 3 This is an exploded structural diagram of a slow-closing device in a slow-closing door according to an embodiment of this application.

[0020] Figure 4 This is a cross-sectional structural schematic diagram of a slow-closing device in a slow-closing door according to an embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the rotating pressure mechanism in a slow-closing door according to an embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the structure of a rotating platform in a slow-closing door according to an embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the structure of the first side top block in a slow-closing door according to an embodiment of this application.

[0024] Figure 8 This is a schematic diagram of the structure of the second side top block in a slow-closing door according to an embodiment of this application.

[0025] Figure 9 This is a schematic diagram of the structure of a rotating shaft seat in a slow-closing door according to an embodiment of this application.

[0026] Figure 10 This is a schematic diagram of the structure of a pressure cover in a slow-closing door according to an embodiment of this application.

[0027] Figure 11 This is a schematic diagram of the structure of a rotating shaft connector in a slow-closing door according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Horizontal door frame; 2. Vertical door frame; 3. Door body; 4. First cavity; 5. Second cavity; 6. Third cavity; 7. First base; 8. Second base; 9. Third base; 10. Top corner; 11. Bottom corner; 12. Transition fillet; 13. Arc-shaped transition section; 14. First end shaft; 15. Bearing; 16. Second end shaft; 17. First mounting seat; 18. First abutment seat; 19. First boss; 20. Second boss; 21. Buffer seat; 22. Damping rod; 23. Adjusting screw; 24. Adjusting hole; 25. Longitudinal slider base; 26. First wedge-shaped platform; 27. First inclined surface; 28. Transverse slider base; 29. ​​Second wedge-shaped platform; 30. Second inclined surface; 3 1. Second mounting base; 32. Second abutment seat; 33. Third boss; 34. Abutment groove; 35. Arc-shaped groove; 36. Third arc-shaped segment; 37. Spring support; 38. Spring; 39. Spring positioning seat; 40. Rotary shaft seat; 41. Pressure cap; 42. Mounting port; 43. First assembly groove; 44. Second assembly groove; 45. Third assembly groove; 46. Rotation groove; 47. First limiting groove; 48. First arc-shaped segment; 49. First limiting segment; 50. Fourth assembly groove; 51. Fifth assembly groove; 52. Sixth assembly groove; 53. Second limiting groove; 54. Second arc-shaped segment; 55. Second limiting segment; 56. Rotary shaft support; 57. Third end shaft; 58. Fixed seat; 59. Shaft hole. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 11 To further illustrate this application, the coordinate system shown in the figure illustrates the horizontal x-direction, vertical y-direction, and vertical z-direction of the slow-closing door.

[0030] This application discloses a slow-closing door, as shown in the embodiments below. Figure 1 It includes a horizontally arranged horizontal door frame 1, a vertically arranged vertical door frame 2, and a door body 3. The horizontal door frame 1 and the vertical door frame 2 are arranged perpendicularly to each other. One end of the horizontal door frame 1 is installed at the corresponding end of the vertical door frame 2. The door body 3 is located in the area between the horizontal door frame 1 and the vertical door frame 2.

[0031] Reference Figure 2 In this embodiment, the entire horizontal door frame 1 is a hollow tubular structure. Of course, it can also be customized according to actual needs, but at least it must be ensured that the end of the horizontal door frame 1 near the vertical door frame 2 is provided with a mounting cavity, and the slow-closing device used to achieve the slow-closing effect of the door is installed in the mounting cavity; refer to Figure 3 , 4 The slow-closing device includes a mounting base, a buffer mechanism, a rotating pressing mechanism, and an elastic mechanism. The mounting base has a first cavity 4 for mounting the buffer mechanism, a second cavity 5 for mounting the rotating pressing mechanism, and a third cavity 6 for mounting the elastic mechanism arranged sequentially along the transverse direction.

[0032] Reference Figure 5 The aforementioned rotating pressing mechanism includes a first side top block, a rotating platform, and a second side top block, which are arranged horizontally in sequence within the second cavity 5.

[0033] Reference Figure 6 The rotating platform includes a first base 7, a second base 8, and a third base 9 arranged vertically in sequence within the mounting cavity. Each of the three bases comprises a triangular base with three sides: a first side, a second side, and a third side. A apex 10 is formed between the first and second sides on one side of the buffer mechanism, and a bottom angle 11 is formed between the third side and the first and second sides on one side of the elastic mechanism. A transition fillet 12 is provided at the apex 10 and the two bottom angles 11. An arc-shaped transition section 13 is provided on the side of the first and second sides closest to the third side, connecting the transition fillet 12 at the bottom angle 11. The triangular base design, along with the transition fillets and arc-shaped transition sections 13, causes the three corners of the rotating platform to form a cam structure. During the door rotation, the rotating platform is driven to rotate synchronously by the rotating shaft connector, thereby driving the buffer mechanism and the elastic mechanism to work, achieving the effect of slow door closing.

[0034] In this embodiment, to ensure a more stable and reliable fit between the structures, the areas of the first base 7 and the third base 9 can be designed to be larger than the area of ​​the second base 8. This not only achieves a slow-closing effect but also avoids the possibility of the rotating platform shifting along its rotational axial direction. In addition, in this embodiment, a first end shaft 14 is provided on the end face of the first base 7 away from the second base 8, near the elastic mechanism. The first end shaft 14 is rotatably mounted in the second cavity 5 via a bearing 15. A second end shaft 16 is provided on the end face of the third base 9 away from the second base 8, near the elastic mechanism. The second end shaft 16 is also rotatably mounted in the second cavity 5 via a bearing 15, and the second end shaft 16 is adapted to be installed with the rotating shaft connector.

[0035] Reference Figure 7The first side top block includes a first mounting base 17 and a first abutment base 18. The first abutment base 18 is disposed on the end face of the first mounting base 17 facing the rotating platform. An arc-shaped first protrusion 19 is disposed in the middle of the end face of the first abutment base 18 facing the rotating platform. The first protrusion 19 abuts against the transition fillet 12 at the corresponding apex corner 10 of the first base 7 and the third base 9. An arc-shaped second protrusion 20 is disposed in the middle of the first protrusion 19. The second protrusion 20 abuts against the transition fillet 12 at the corresponding apex corner 10 of the second base 8. In this embodiment, the first side top block is close to the side of the buffer mechanism and is connected to the buffer mechanism. The buffer mechanism includes a buffer seat 21 and at least one damping rod 22. In this embodiment, two damping rods 22 are spaced apart and are installed between the buffer seat 21 and the first side top block.

[0036] To adjust the distance between the buffer seat 21 and the first side top block, or to adjust the stroke of the damping rod 22, an adjustment cavity can be provided inside the buffer seat 21, and an adjustment assembly is installed inside the adjustment cavity. The adjustment assembly includes a longitudinal adjustment slider for longitudinal displacement within the adjustment cavity, a lateral adjustment slider, and a longitudinally arranged adjustment screw 23. The longitudinal adjustment slider is located on the side of the adjustment cavity away from the damping rod 22, and the damping rod 22 is installed on the lateral adjustment slider. An adjustment hole 24 communicating with the adjustment cavity is provided laterally on the buffer seat 21, and the lateral adjustment slider is slidably assembled into the adjustment hole 24. The longitudinal adjustment slider includes a longitudinal slider base 25 and a first wedge-shaped platform 26. The first wedge-shaped platform 26 is provided with... On the side of the longitudinal slider base 25 facing the end face of the transverse adjustment slider, a first inclined surface 27 is provided on the first wedge platform 26; the transverse adjustment slider includes a transverse slider base 28 and a second wedge platform 29. The second wedge platform 29 is provided on the side of the transverse slider base 28 facing the end face of the longitudinal adjustment slider, and a second inclined surface 30 is provided on the second wedge platform 29. The first inclined surface 27 and the second inclined surface 30 are slidably engaged, and the transverse adjustment slider can be made to move laterally through the sliding engagement; both the buffer seat 21 and the longitudinal adjustment slider are provided with coaxial threaded holes in the longitudinal direction, and the adjusting screw 23 is threadedly assembled into the threaded holes of the buffer seat 21 and the longitudinal adjustment slider.

[0037] Reference Figure 8The second side top block includes a second mounting base 31 and a second abutment base 32. The second abutment base 32 is disposed on the end face of the second mounting base 31 facing the rotating platform. A third protrusion 33 is provided on the end face of the second abutment base 32 facing the rotating platform. In this embodiment, the third protrusion 33 divides the end face of the second abutment base 32 facing the rotating platform into two parts in the vertical direction. Both the end faces of the third protrusion 33 and the second abutment base 32 located on opposite vertical sides of the third protrusion 33 are provided with abutment grooves 34. An arc-shaped groove 35 is provided in the middle of each abutment groove 34. A third arc-shaped segment 36 is provided in each abutment groove 34 located on opposite sides of the corresponding arc-shaped groove 35. In this embodiment, the third arc-shaped segment 36 is... The angle between the groove wall and the bottom of the corresponding abutment groove 34 is the angle between the groove wall and the bottom of the groove. The third arc-shaped segment 36 in the two abutment grooves 34 of the second abutment seat 32 abuts against the transition rounded corner 12 at the corresponding bottom corner 11 of the first base 7 and the third base 9, respectively. The third arc-shaped segment 36 in the abutment groove 34 of the third boss 33 abuts against the transition rounded corner 12 at the corresponding bottom corner 11 of the second base 8, respectively. In this embodiment, the side top block is close to the side of the elastic mechanism and is connected to the elastic mechanism. The elastic mechanism includes a spring support 37 and a spring 38. The spring 38 is installed between the spring support 37 and the second mounting seat 31. The end face of the second mounting seat 31 facing the spring 38 is provided with a spring positioning seat 39 for positioning and installing the spring 38.

[0038] Reference Figure 9 , 10 The mounting base includes a rotating shaft seat 40 and a pressure cap 41. The rotating shaft seat 40 has a mounting port 42 in the middle of the end face away from the rotating shaft connector. The pressure cap 41 is installed at the mounting port 42. After the pressure cap 41 is installed at the mounting port 42 of the rotating shaft seat 40, a second cavity 5 is formed between the pressure cap 41 and the rotating shaft seat 40.

[0039] In order to ensure the stable operation of the rotating platform, the first side top block, and the second side top block within the second cavity 5, and to limit the rotation of the rotating platform, the end face of the pressure cover 41 facing the rotating platform is provided with a first assembly groove 43 for mounting the first side top block, a second assembly groove 44 for mounting the rotating platform, and a third assembly groove 45 for mounting the second side top block in a transverse direction. The bottom of the second assembly groove 44 is provided with a rotating groove 46 for mounting the first end shaft 14. The second assembly groove 44 is provided with first limiting grooves 47 on opposite sides in the longitudinal direction to limit the maximum rotation stroke of the rotating platform. The first limiting groove 47 includes a first arc-shaped segment 48 and a first limiting segment 49 connected to the first arc-shaped segment 48 and inclined. The first arc-shaped segment 48 is closer to the first side top block, and the first limiting segment 49 is located away from the first side top block. The center of the first arc-shaped segment 48 is collinear with the rotation axis of the rotating platform.

[0040] The end face of the second cavity 5 away from the pressure cover 41 is sequentially connected in the transverse direction to a fourth assembly groove 50 for mounting the first side top block, a fifth assembly groove 51 for rotating the rotating table, and a sixth assembly groove 52 for mounting the second side top block. The fifth assembly groove 51 is symmetrically provided with second limiting grooves 53 on opposite sides along the longitudinal direction to limit the maximum rotation stroke of the rotating table. The second limiting groove 53 includes a second arc-shaped segment 54 and a second limiting segment 55 connected to the second arc-shaped segment 54 and inclined. The second arc-shaped segment 54 is closer to the second side top block, and the second limiting segment 55 is located away from the first side top block. The center of the second arc-shaped segment 54 is collinear with the rotation axis of the rotating table.

[0041] In this embodiment, the rotating platform is connected to the door body 3 via a rotating shaft connector, as shown in the reference. Figure 11 The rotating shaft connector includes a rotating shaft support 56, a third end shaft 57, and a fixed seat 58. The third end shaft 57 is located on the rotating shaft support 56 facing the rotating table. The mounting base is provided with a shaft hole 59 communicating with the second cavity 5. The third end shaft 57 passes through the shaft hole 59 and is adapted to be installed with the second end shaft 16. The fixed seat 58 is located on the rotating shaft support 56 away from the rotating table and is fixedly connected to the door body 3.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A slow-closing door, comprising a horizontally arranged horizontal door frame (1), a vertically arranged vertical door frame (2), and a door body (3), wherein the horizontal door frame (1) and the vertical door frame (2) are arranged perpendicularly to each other, one end of the horizontal door frame (1) is installed at the corresponding end of the vertical door frame (2), and the door body (3) is located in the area between the horizontal door frame (1) and the vertical door frame (2), characterized in that, An installation cavity is provided in the end of the horizontal door frame (1) near the vertical door frame (2). A slow-closing device is installed in the installation cavity. The slow-closing device includes an installation base, a buffer mechanism, a rotating pressing mechanism, and an elastic mechanism. The installation base is provided with a first cavity (4) for installing the buffer mechanism, a second cavity (5) for installing the rotating pressing mechanism, and a third cavity (6) for installing the elastic mechanism, arranged in a horizontal sequence. The rotating pressing mechanism includes a first side top block, a rotating platform, and a second side top block arranged in a horizontal sequence in the second cavity (5). The first side top block is located near the buffer mechanism and is connected to the buffer mechanism. The second side top block is located near the elastic mechanism and is connected to the elastic mechanism. The rotating platform is connected to the door body (3) via a rotating shaft connector. The rotating platform includes a first base (7), a second base (8), and a third base (9) arranged vertically in sequence within the mounting cavity. A first end shaft (14) is provided on the end face of the first base (7) away from the second base (8) near the elastic mechanism. The first end shaft (14) is rotatably mounted in the second cavity (5). A second end shaft (16) is provided on the end face of the third base (9) away from the second base (8) near the elastic mechanism. The second end shaft (16) is adapted to and installed with the rotating shaft connector. The first base (7), the second base (8), and the third base (9) are connected vertically in sequence within the mounting cavity. 9) Each includes a triangular base with three sides: a first side, a second side, and a third side. The first side and the second side form a apex (10) on one side of the buffer mechanism, and the third side forms a base (11) on one side of the elastic mechanism with the first side and the second side. Both the apex (10) and the two bases (11) are provided with transition fillets (12). The first side and the second side are respectively provided with arc-shaped transition sections (13) connected by the transition fillets (12) at the corresponding bases (11) on the side of the third side. The areas of the first base (7) and the third base (9) are both larger than those of the second base. The area of ​​the platform (8); the first side top block includes a first mounting base (17) and a first abutment base (18). The first abutment base (18) is disposed on the end face of the first mounting base (17) facing the rotating platform. An arc-shaped first protrusion (19) is disposed in the middle of the end face of the first abutment base (18) facing the rotating platform. The first protrusion (19) abuts against the transition fillet (12) at the corresponding apex (10) of the first base (7) and the third base (9). An arc-shaped second protrusion (20) is disposed in the middle of the first protrusion (19). The second protrusion (20) abuts against the transition fillet (12) at the corresponding apex (10) of the second base (8).The second side top block includes a second mounting base (31) and a second abutment base (32). The second abutment base (32) is disposed on the end face of the second mounting base (31) facing the rotating platform. A third boss (33) is provided on the end face of the second abutment base (32) facing the rotating platform. Abutment grooves (34) are provided on the end faces of the third boss (33) and the second abutment base (32) located on opposite vertical sides of the third boss (33). An arc-shaped groove (35) is provided in the middle of each abutment groove (34). A third arc segment (36) is provided in the groove (34) on both sides of the corresponding arc groove (35); the third arc segment (36) in the two abutment grooves (34) of the second abutment seat (32) abuts against the transition fillet (12) at the corresponding bottom corner (11) of the first base (7) and the third base (9), respectively; the third arc segment (36) in the abutment groove (34) of the third boss (33) abuts against the transition fillet (12) at the corresponding bottom corner (11) of the second base (8), respectively.

2. A soft-closing door according to claim 1, characterized in that, The mounting base includes a rotating shaft seat (40) and a pressure cap (41). The rotating shaft seat (40) has a mounting opening (42) in the middle of the end face away from the rotating shaft connector. The pressure cap (41) is installed at the mounting opening (42). The end face of the pressure cap (41) facing the rotating table is sequentially connected in the transverse direction to a first assembly groove (43) for mounting the first side top block, a second assembly groove (44) for rotating the rotating table, and a third assembly groove (45) for mounting the second side top block. The bottom of the second assembly groove (44) is provided with a rotating groove (46) for rotating the first end shaft (14). The second assembly groove (44) is symmetrically provided on opposite sides in the longitudinal direction to limit the maximum rotation stroke of the rotating table. The first limiting groove (47) includes a first arc-shaped segment (48) and a first limiting segment (49) connected to the first arc-shaped segment (48) and inclined. The first arc-shaped segment (48) is close to On one side of the first side top block, the first limiting segment (49) is located away from the first side top block, and the center of the first arc segment (48) is collinear with the rotation axis of the rotating table; the end face of the second cavity (5) away from the pressure cover (41) is sequentially connected with the fourth assembly groove (50) for the installation of the first side top block, the fifth assembly groove (51) for the rotation installation of the rotating table, and the sixth assembly groove (52) for the installation of the second side top block; the fifth assembly groove (51) is symmetrically provided on both sides along the longitudinal direction with the second limiting groove (53) for limiting the maximum rotation stroke of the rotating table. The second limiting groove (53) includes the second arc segment (54) and the second limiting segment (55) connected to the second arc segment (54) and inclined. The second arc segment (54) is close to the second side top block, and the second limiting segment (55) is located away from the first side top block. The center of the second arc segment (54) is collinear with the rotation axis of the rotating table.

3. A soft-closing door according to claim 1, characterized in that, The buffer mechanism includes a buffer seat (21) and at least one damping rod (22). The damping rod (22) is installed between the buffer seat (21) and the first side top block. An adjustment cavity is provided in the buffer seat (21), and an adjustment component is installed in the adjustment cavity.

4. A soft-closing door according to claim 3, characterized in that, The adjustment assembly includes a longitudinal adjustment slider for longitudinal displacement within the adjustment cavity, a transverse adjustment slider, and a longitudinally arranged adjustment screw (23). The longitudinal adjustment slider is located on the side of the adjustment cavity away from the damping rod (22). The damping rod (22) is mounted on the transverse adjustment slider. An adjustment hole (24) communicating with the adjustment cavity is provided transversely on the buffer seat (21). The transverse adjustment slider is slidably assembled in the adjustment hole (24). The longitudinal adjustment slider includes a longitudinal slider base (25) and a first wedge-shaped platform (26). The first wedge-shaped platform (26) is located on the end face of the longitudinal slider base (25) facing the transverse adjustment slider. The first wedge-shaped platform (26) is provided with a first inclined surface (27); the transverse adjustment slider includes a transverse slider base (28) and a second wedge-shaped platform (29). The second wedge-shaped platform (29) is located on the end face of the transverse slider base (28) facing the longitudinal adjustment slider. The second wedge-shaped platform (29) is provided with a second inclined surface (30). The first inclined surface (27) and the second inclined surface (30) are slidably fitted together. Both the buffer seat (21) and the longitudinal adjustment slider are provided with coaxial threaded holes in the longitudinal direction. The adjusting screw (23) is threadedly fitted into the threaded holes of the buffer seat (21) and the longitudinal adjustment slider.

5. A soft-closing door according to claim 1, characterized in that, The elastic mechanism includes a spring support (37) and a spring (38). The spring (38) is installed between the spring support (37) and the second mounting base (31). The end face of the second mounting base (31) facing the spring (38) is provided with a spring positioning seat (39) for positioning the spring (38).

6. A soft-closing door according to claim 1, characterized in that, The rotating shaft connector includes a rotating shaft support (56), a third end shaft (57), and a fixed seat (58). The third end shaft (57) is located on the rotating shaft support (56) facing the rotating table. The mounting base is provided with a shaft hole (59) communicating with the second cavity (5). The third end shaft (57) passes through the shaft hole (59) and is adapted to be installed with the second end shaft (16). The fixed seat (58) is located on the rotating shaft support (56) away from the rotating table and is fixedly connected to the door body (3).

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