Slow closing device of slow closing door
By designing a door-closing device that includes a mounting base, a buffer mechanism, a rotating and resilient mechanism, the problem of vulnerability of traditional door-closing door-closing devices is solved, and a hidden installation and effective door-closing effect is achieved.
Patent Information
- Application Number
- CN202422056715.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The installation method of traditional door closets that slow the door closets are exposed and are easily affected by external environment or artificial damage, resulting in poor slow the door closet.
A slow-closing device for slow-closing doors is designed, adopting a hidden installation method, including mounting base, buffer mechanism, rotating and pressing mechanism and elastic mechanism. Through the cooperation of the rotating table and the top block, the slow-closing effect of the door is achieved.
It effectively reduces the exposure of parts, enables parts to be installed concealedly, and at the same time realizes the door slow-closing effect, avoiding the delay-closing failure caused by damage to exposed parts.
Smart Images
Figure CN222936596U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of doors, and in particular to a slow-closing device for a slow-closing door. Background Art
[0002] Slow-closing doors are applied in some public places, office places, and individual family houses. The main purpose is to be able to slow down the process of the door closing automatically after it is opened, and minimize the back-and-forth swing of the door caused by the relatively large return force, and even avoid making a huge noise.
[0003] Traditional slow-closing doors generally include a horizontally arranged horizontal door frame, two vertically arranged vertical door frames, and a door body. The horizontal door frame and the vertical door frames are perpendicularly arranged. Generally, when there is one horizontal door frame, it is usually installed above the door body, and the vertical door frames are respectively installed on the left and right sides of the door body. The two ends of the horizontal door frame are installed at the corresponding ends of the corresponding vertical door frames. The door body is located in the area between the horizontal door frame and the vertical door frames. Generally, a rotating shaft is installed at a position on the top edge of the door body close to the vertical door frame, and the rotating shaft is rotatably connected to the horizontal door frame. In order to achieve the slow-closing effect, a door closer is generally installed between the horizontal door frame and the door body.
[0004] However, although the door closer has a certain slow-closing effect, the installation method of the door closer is exposed, so it is more affected by external environments or human damage factors. Summary of the Utility Model
[0005] In order to reduce the situation of exposed components and enable the components to be installed in a concealed manner, and at the same time, enable the door to achieve the slow-closing effect.
[0006] A slow-closing device for a slow-closing door provided by the present application adopts the following technical solutions:
[0007] A slow-closing device for a slow-closing door includes a mounting base, a buffer mechanism, a rotating and pressing mechanism, and an elastic mechanism. A first cavity for installing the buffer mechanism, a second cavity for installing the rotating and pressing mechanism, and a third cavity for installing the elastic mechanism are sequentially arranged horizontally in the mounting base; the rotating and pressing mechanism includes a first side top block, a rotating table, and a second side top block arranged horizontally in the second cavity. The first side top block is close to the buffer mechanism and is connected to the buffer mechanism. The second side top block is close to the elastic mechanism and is connected to the elastic mechanism.
[0008] In some embodiments, the rotating table includes a first base platform, a second base platform, and a third base platform arranged vertically in the installation cavity. A first end shaft is arranged on the end face of the first base platform far from the second base platform and close to the elastic mechanism side. The first end shaft is rotatably arranged in the second cavity. A second end shaft is arranged on the end face of the third base platform far from the second base platform and close to the elastic mechanism side. The second end shaft is adaptively installed with a rotating shaft connecting member.
[0009] In some embodiments, the first base, the second base, and the third base each include a triangular base body. The three side edges of the base body are respectively a first side edge, a second side edge, and a third side edge. An apex angle located on one side of the buffer mechanism is formed between the first side edge and the second side edge. Base angles located on one side of the elastic mechanism are respectively formed between the third side edge and the first side edge and between the third side edge and the second side edge. Transition rounded corners are provided at the apex angle and the two base angles. Arc-shaped transition segments corresponding to the transition rounded corners at the base angles are provided on one side of the first side edge and the second side edge close to the third side edge respectively; the areas of the first base and the third base are both larger than the area of the second base.
[0010] In some embodiments, the mounting base includes a rotating shaft seat and a gland. An installation opening is provided in the middle of the end face of the rotating shaft seat away from the rotating shaft connecting member. The gland is installed at the installation opening. The end face of the gland facing the rotating table is sequentially and transversely communicated with a first assembly groove for installing the first side top block, a second assembly groove for rotatably installing the rotating table, and a third assembly groove for installing the second side top block. A rotating groove for rotatably installing the first end shaft is provided at the bottom of the second assembly groove; on opposite sides in the longitudinal direction in the second assembly groove, first limiting grooves for limiting the maximum rotation stroke of the rotating table are symmetrically provided respectively. The first limiting groove includes a first arc segment and a first limiting segment that is connected to the first arc segment and is inclined. The first arc segment is close to the first side top block, and the first limiting segment is located on the side away from the first side top block. The center of the first arc segment is collinear with the rotation axis of the rotating table; on the end face of the second cavity away from the gland, a fourth assembly groove for installing the first side top block, a fifth assembly groove for rotatably installing the rotating table, and a sixth assembly groove for installing the second side top block are sequentially and transversely communicated; on opposite sides in the longitudinal direction in the fifth assembly groove, second limiting grooves for limiting the maximum rotation stroke of the rotating table are symmetrically provided respectively. The second limiting groove includes a second arc segment and a second limiting segment that is connected to the second arc segment and is inclined. The second arc segment is close to the second side top block, and the second limiting segment is located on the side away from the first side top block. The center of the second arc segment is collinear with the rotation axis of the rotating table.
[0011] In some embodiments, the first side top block includes a first mounting seat and a first abutting seat. The first abutting seat is provided on the end face of the first mounting seat facing the rotating table. An arc-shaped first convex platform is provided in the middle of the end face of the first abutting seat facing the rotating table. The first convex platform abuts against the transition rounded corners at the corresponding apex angles of the first base and the third base. An arc-shaped second convex platform is provided in the middle of the first convex platform. The second convex platform abuts against the transition rounded corners at the corresponding apex angles of the second base.
[0012] In some embodiments, the buffer mechanism includes a buffer seat and at least one damping rod. The damping rod is installed between the buffer seat and the first side top block. An adjustment cavity is provided in the buffer seat, and an adjustment component is installed in the adjustment cavity.
[0013] In some embodiments, the adjusting assembly includes a longitudinal adjusting slider, a transverse adjusting slider, and an adjusting screw longitudinally arranged in an adjusting cavity. The longitudinal adjusting slider is located on the side of the adjusting cavity away from the damping rod. The damping rod is installed on the transverse adjusting slider. A transverse adjusting hole communicating with the adjusting cavity is transversely arranged on the buffer seat, and the transverse adjusting slider is slidably assembled in the adjusting hole. The longitudinal adjusting slider includes a longitudinal slider base body and a first wedge platform. The first wedge platform is arranged on one end face of the longitudinal slider base body facing the transverse adjusting slider, and a first inclined surface is arranged on the first wedge platform. The transverse adjusting slider includes a transverse slider base body and a second wedge platform. The second wedge platform is arranged on one end face of the transverse slider base body facing the longitudinal adjusting slider, and a second inclined surface is arranged on the second wedge platform. The first inclined surface and the second inclined surface are in sliding fit with each other. Coaxial threaded holes are longitudinally arranged on both the buffer seat and the longitudinal adjusting slider, and the adjusting screw is threadedly assembled in the threaded holes of the buffer seat and the longitudinal adjusting slider.
[0014] In some embodiments, the second side top block includes a second mounting seat and a second abutting seat. The second abutting seat is arranged on the end face of the second mounting seat facing the rotating table. A third convex platform is arranged on the end face of the second abutting seat facing the rotating table. Abutting grooves are arranged on the end faces of the third convex platform and the second abutting seat on the two vertical opposite sides of the third convex platform. Arc-shaped grooves are arranged in the middle positions of the abutting grooves. Third arc-shaped segments are arranged at positions on both sides of the corresponding arc-shaped grooves in the abutting grooves. The third arc-shaped segments in the two abutting grooves of the second abutting seat are respectively in abutting connection with the transition rounded corners at the corresponding bottom corners of the corresponding first base platform and the third base platform, and the third arc-shaped segments in the abutting grooves of the third convex platform are respectively in abutting connection with the transition rounded corners at the corresponding bottom corners of the second base platform.
[0015] In some embodiments, the elastic mechanism includes a spring support and a spring. The spring is installed between the spring support and the second mounting seat. A spring positioning seat for positioning and installing the spring is arranged on the end face of the second mounting seat facing the spring.
[0016] In some embodiments, a rotating shaft connecting member connected to the rotating table is arranged on one side of the mounting base. The rotating shaft connecting member includes a rotating shaft support and a third end shaft. The third end shaft is arranged on the side of the rotating shaft support facing the rotating table. A shaft hole communicating with the second cavity is arranged on the mounting base, and the third end shaft passes through the shaft hole and is adaptively installed with the second end shaft.
[0017] In summary, the present application includes at least one of the following beneficial technical effects: Through the design of the slow closing device, it can be directly installed on the horizontal door frame by means of hidden installation, which can effectively reduce the exposure of parts, enable the parts to achieve hidden installation, and at the same time, enable the door to achieve the effect of slow closing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1It is an exploded structural schematic diagram of a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0019] Figure 2 It is a sectional structural schematic diagram of a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0020] Figure 3 It is a structural schematic diagram of a rotating pressing mechanism in a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0021] Figure 4 It is a structural schematic diagram of a rotating table in a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0022] Figure 5 It is a structural schematic diagram of a first side top block in a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0023] Figure 6 It is a structural schematic diagram of a second side top block in a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0024] Figure 7 It is a structural schematic diagram of a rotating shaft seat in a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0025] Figure 8 It is a structural schematic diagram of a gland in a slow - closing device for a slow - closing door according to an embodiment of the present application.
[0026] Explanation of reference numerals: 1, first cavity; 2, second cavity; 3, third cavity; 4, first base; 5, second base; 6, third base; 7, top corner; 8, bottom corner; 9, transitional fillet; 10, arc transitional section; 11, first end shaft; 12, bearing; 13, second end shaft; 14, first mounting seat; 15, first abutting seat; 16, first boss; 17, second boss; 18, buffer seat; 19, damping rod; 20, adjusting screw; 21, adjusting hole; 22, longitudinal slider base; 23, first wedge - shaped table; 24, first inclined surface; 25, transverse slider base; 26, second wedge - shaped table; 27, second inclined surface; 28, second mounting seat; 29, second abutting seat; 30, third boss; 31, abutting groove; 32, arc groove; 33, third arc section; 34, spring support; 35, spring; 36, spring positioning seat; 37, rotating shaft seat; 38, gland; 39, mounting opening; 40, first assembly groove; 41, second assembly groove; 42, third assembly groove; 43, rotating groove; 44, first limiting groove; 45, first arc section; 46, first limiting section; 47, fourth assembly groove; 48, fifth assembly groove; 49, sixth assembly groove; 50, second limiting groove; 51, second arc section; 52, second limiting section; 53, rotating shaft support; 54, third end shaft; 55, shaft hole. Detailed implementation manners
[0027] The following will further describe the present application in detail with reference to the attached drawings. The coordinate system shown in the drawings shows the transverse direction x, the longitudinal direction y, and the vertical direction z of the slow-closing device of the slow-closing door. Figures 1 to 8 The embodiment of the present application discloses a slow-closing device for a slow-closing door. Referring to
[0028] and Figure 1 、 2 , it includes a mounting base, a buffer mechanism, a rotating pressing mechanism, and an elastic mechanism. A first cavity 1 for installing the buffer mechanism, a second cavity 2 for installing the rotating pressing mechanism, and a third cavity 3 for installing the elastic mechanism are sequentially arranged along the transverse direction in the mounting base and are connected to each other.
[0029] Referring to Figure 3 , the above-mentioned rotating pressing mechanism includes a first side top block, a rotating table, and a second side top block. The first side top block, the rotating table, and the second side top block are arranged horizontally in sequence in the second cavity 2.
[0030] Referring to Figure 4 , the rotating table includes a first base 4, a second base 5, and a third base 6 that are sequentially arranged vertically in the installation cavity. The first base 4, the second base 5, and the third base 6 all include a triangular base body. The three sides of the base body are respectively a first side, a second side, and a third side. An apex angle 7 located on one side of the buffer mechanism is formed between the first side and the second side. The third side forms base angles 8 located on one side of the elastic mechanism with the first side and the second side respectively. Transition rounded corners 9 are provided at the apex angle 7 and the two base angles 8. Arc transition segments 10 corresponding to the transition rounded corners 9 at the base angles 8 are provided on one side of the first side and the second side close to the third side. The design of the triangular base body, as well as the design of the over-rounded corners and the arc transition segments 10, enables the three corner parts of the rotating table to form a cam structure. During the rotation of the door, the rotating table is driven to rotate synchronously by the rotating shaft connecting piece, so as to drive the buffer mechanism and the elastic mechanism to work, achieving the effect of slow closing of the door body.
[0031] In this embodiment, in order to make the cooperation between the structures more stable and reliable, the areas of the first base 4 and the third base 6 can be designed to be both larger than the area of the second base 5. In this way, not only can the effect of slow closing be achieved, but also the possibility of the rotating table shifting along the axial direction of its rotation can be avoided. In addition, in this embodiment, a first end shaft 11 is provided on the end face of the first base 4 far from the second base 5 and close to the elastic mechanism side. The first end shaft 11 is rotatably arranged in the second cavity 2 through a bearing 12. A second end shaft 13 is provided on the end face of the third base 6 far from the second base 5 and close to the elastic mechanism side. The second end shaft 13 is also rotatably arranged in the second cavity 2 through a bearing 12, and the second end shaft 13 is adaptively installed with the rotating shaft connecting piece.
[0032] Referring toFigure 5 , the first side top block includes a first mounting base 14 and a first abutting base 15. The first abutting base 15 is disposed on the end face of the first mounting base 14 facing the rotating table. In the middle of the end face of the first abutting base 15 facing the rotating table, there is an arc-shaped first convex platform 16. The first convex platform 16 abuts against the transition fillet 9 at the corresponding vertex angle 7 of the first base 4 and the third base 6. In the middle of the first convex platform 16, there is an arc-shaped second convex platform 17. The second convex platform 17 abuts against the transition fillet 9 at the corresponding vertex angle 7 of the second base 5. In this embodiment, the first side top block is close to and connected to the buffer mechanism on one side. The buffer mechanism includes a buffer seat 18 and at least one damping rod 19. In this embodiment, there are two damping rods 19 arranged at intervals, and the damping rods 19 are installed between the buffer seat 18 and the first side top block.
[0033] In order to adjust the distance between the buffer seat 18 and the first side top block, or to adjust the stroke size of the damping rod 19, an adjustment cavity can be provided in the buffer seat 18, and an adjustment component is installed in the adjustment cavity. The adjustment component includes a longitudinal adjustment slider, a transverse adjustment slider, and a longitudinally arranged adjustment screw 20 that can longitudinally displace in the adjustment cavity. The longitudinal adjustment slider is located on the side of the adjustment cavity away from the damping rod 19. The damping rod 19 is installed on the transverse adjustment slider. The buffer seat 18 is transversely provided with an adjustment hole 21 communicating with the adjustment cavity, and the transverse adjustment slider is slidably assembled in the adjustment hole 21. The longitudinal adjustment slider includes a longitudinal slider base body 22 and a first wedge platform 23. The first wedge platform 23 is disposed on one side of the end face of the longitudinal slider base body 22 facing the transverse adjustment slider, and a first inclined surface 24 is provided on the first wedge platform 23. The transverse adjustment slider includes a transverse slider base body 25 and a second wedge platform 26. The second wedge platform 26 is disposed on one side of the end face of the transverse slider base body 25 facing the longitudinal adjustment slider, and a second inclined surface 27 is provided on the second wedge platform 26. The first inclined surface 24 and the second inclined surface 27 are in sliding fit. Through the sliding fit, the transverse adjustment slider can make a transverse displacement action. The buffer seat 18 and the longitudinal adjustment slider are both longitudinally provided with coaxial threaded holes, and the adjustment screw 20 is threadedly assembled in the threaded holes of the buffer seat 18 and the longitudinal adjustment slider.
[0034] Refer to Figure 6, the second side top block includes a second mounting base 28 and a second abutting base 29. The second abutting base 29 is disposed on the end face of the second mounting base 28 facing the rotating table. A third boss 30 is provided on the end face of the second abutting base 29 facing the rotating table. In this embodiment, the third boss 30 divides the end face of the second abutting base 29 facing the rotating table into two parts in the vertical direction. The third boss 30 and the end faces of the second abutting base 29 on both sides of the third boss 30 in the vertical direction are provided with abutting grooves 31. An arc groove 32 is provided in the middle position of each abutting groove 31. Third arc segments 33 are provided at positions on both sides of the corresponding arc groove 32 in each abutting groove 31. In this embodiment, the third arc segments 33 are respectively at the included angle between the groove wall and the groove bottom of the corresponding abutting groove 31; the third arc segments 33 in the two abutting grooves 31 of the second abutting base 29 are respectively abutted against the transition fillets 9 at the corresponding bottom corners 8 of the corresponding first base 4 and the third base 6, and the third arc segments 33 in the abutting grooves 31 of the third boss 30 are respectively abutted against the transition fillets 9 at the corresponding bottom corners 8 of the second base 5; in this embodiment, the second side top block is close to and connected to the elastic mechanism on one side. The elastic mechanism includes a spring support 34 and a spring 35. The spring 35 is installed between the spring support 34 and the second mounting base 28. A spring positioning seat 36 for positioning and installing the spring 35 is provided on the end face of the second mounting base 28 facing the spring 35.
[0035] Referring to Figure 7 , 8 , the mounting base includes a rotating shaft seat 37 and a gland 38. An installation opening 39 is provided in the middle of the end face of the rotating shaft seat 37 away from the rotating shaft connecting member. The gland 38 is installed at the installation opening 39. A second cavity 2 is formed between the gland 38 and the rotating shaft seat 37 after the gland 38 is installed at the installation opening 39 of the rotating shaft seat 37.
[0036] In order to enable the rotating table, the first side top block, and the second side top block to work stably in the second cavity 2 and to limit the rotation of the rotating table, the end face of the gland 38 facing the rotating table is successively and communicatively provided with a first assembly groove 40 for installing the first side top block, a second assembly groove 41 for rotatably installing the rotating table, and a third assembly groove 42 for installing the second side top block in the transverse direction. A rotating groove 43 for rotatably installing the first end shaft 11 is provided at the bottom of the second assembly groove 41; first limiting grooves 44 for limiting the maximum rotation stroke of the rotating table are symmetrically provided on both sides in the longitudinal direction in the second assembly groove 41. The first limiting grooves 44 include a first arc segment 45 and a first limiting segment 46 connected to the first arc segment 45 and inclined. The first arc segment 45 is close to the first side top block, and the first limiting segment 46 is located on the side away from the first side top block. The center of the first arc segment 45 is collinear with the rotation axis of the rotating table.
[0037] On the end face of the second cavity 2 away from the gland 38, a fourth assembly groove 47 for installing the first side top block, a fifth assembly groove 48 for rotatably installing the rotating table, and a sixth assembly groove 49 for installing the second side top block are sequentially communicated along the transverse direction; on the opposite sides of the fifth assembly groove 48 along the longitudinal direction, second limiting grooves 50 for limiting the maximum rotation stroke of the rotating table are symmetrically arranged respectively. The second limiting grooves 50 include second arc segments 51 and second limiting segments 52 which are connected to the second arc segments 51 and are inclined. The second arc segments 51 are close to the second side top block, the second limiting segments 52 are located on the side away from the first side top block, and the centers of the second arc segments 51 are collinear with the rotation axis of the rotating table.
[0038] In this embodiment, a rotating shaft connecting member connected to the rotating table is arranged on one side of the mounting base. The rotating shaft connecting member includes a rotating shaft support 53 and a third end shaft 54. The third end shaft 54 is arranged on the side of the rotating shaft support 53 facing the rotating table. An axial hole 55 communicated with the second cavity 2 is arranged on the mounting base. The third end shaft 54 passes through the axial hole 55 and is adaptively installed with the second end shaft 13.
[0039] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A slow-closing device for a slow-closing door, characterized in that: The invention comprises a mounting base, a buffer mechanism, a rotating pressing mechanism and an elastic mechanism. The mounting base is provided with a first cavity (1) for installing the buffer mechanism, a second cavity (2) for installing the rotating pressing mechanism and a third cavity (3) for installing the elastic mechanism in sequence along the horizontal direction. The rotating pressing mechanism comprises a first side top block, a rotating platform and a second side top block which are arranged in sequence along the horizontal direction in the second cavity (2). The first side top block is close to one side of the buffer mechanism and is connected to the buffer mechanism, and the second side top block is close to one side of the elastic mechanism and is connected to the elastic mechanism.
2. A slow-closing device for a slow-closing door according to claim 1, characterized in that: The rotating table comprises a first base (4), a second base (5), and a third base (6) which are arranged vertically in sequence in the installation cavity. A first end shaft (11) is arranged on the end surface of the first base (4) away from the second base (5) and close to the elastic mechanism. The first end shaft (11) is rotatably arranged in the second cavity (2). A second end shaft (13) is arranged on the end surface of the third base (6) away from the second base (5) and close to the elastic mechanism. The second end shaft (13) is mounted in a matching manner with the rotating shaft connecting member.
3. A slow-closing device for a slow-closing door according to claim 2, characterized in that: The first base (4), the second base (5) and the third base (6) all comprise a triangular base, the three sides of the base being respectively a first side, a second side and a third side; a top angle (7) located on one side of the buffer mechanism is formed between the first side and the second side; a bottom angle (8) located on one side of the elastic mechanism is formed between the third side and the first side and the second side respectively; transition fillets (9) are provided at the top angle (7) and the two bottom angles (8); an arc-shaped transition section (10) connected to the transition fillets (9) at the corresponding bottom angles (8) is provided on the first side and the second side respectively close to the third side; the areas of the first base (4) and the third base (6) are both larger than the area of the second base (5).
4. A slow-closing device for a slow-closing door according to claim 3, characterized in that: The mounting base comprises a rotating shaft seat (37) and a pressure cover (38). A mounting opening (39) is arranged at the middle of the end surface of the rotating shaft seat (37) away from the rotating shaft connecting member. The pressure cover (38) is mounted at the mounting opening (39). The end surface of the pressure cover (38) facing the rotating table is sequentially connected along the transverse direction with a first assembly groove (40) for mounting the first side top block, a second assembly groove (41) for rotatably mounting the rotating table, and a third assembly groove (42) for mounting the second side top block. A rotating groove (43) for rotatably mounting the first end shaft (11) is arranged at the bottom of the second assembly groove (41). First limiting grooves (44) for limiting the maximum rotation stroke of the rotating table are symmetrically arranged on opposite sides along the longitudinal direction in the second assembly groove (41). The first limiting groove (44) comprises a first arc segment (45), a first limiting segment (46) connected to the first arc segment (45) and inclinedly arranged. The first arc segment (45) is close to the rotating table. On one side of the first side top block, the first limiting section (46) is located away from the first side top block, and the center of the first arc section (45) is colinear with the rotation axis of the rotating table; the end surface of the second cavity (2) away from the pressure cover (38) is sequentially connected along the transverse direction with a fourth assembly groove (47) for mounting the first side top block, a fifth assembly groove (48) for rotatably mounting the rotating table, and a sixth assembly groove (49) for mounting the second side top block; second limiting grooves (50) for limiting the maximum rotation stroke of the rotating table are symmetrically arranged on opposite sides along the longitudinal direction in the fifth assembly groove (48), and the second limiting groove (50) comprises a second arc section (51) and a second limiting section (52) connected to the second arc section (51) and inclinedly arranged, the second arc section (51) is close to one side of the second side top block, the second limiting section (52) is located away from the first side top block, and the center of the second arc section (51) is colinear with the rotation axis of the rotating table.
5. The slow-closing device for a slow-closing door according to claim 3, characterized in that: The first side top block comprises a first mounting seat (14) and a first abutting seat (15). The first abutting seat (15) is arranged on the end surface of the first mounting seat (14) facing the rotating table. A first arc-shaped boss (16) is arranged in the middle of the end surface of the first abutting seat (15) facing the rotating table. The first boss (16) abuts against the transition fillet (9) at the corresponding top corners (7) of the first base (4) and the third base (6). A second arc-shaped boss (17) is arranged in the middle of the first boss (16). The second boss (17) abuts against the transition fillet (9) at the corresponding top corner (7) of the second base (5).
6. A slow-closing device for a slow-closing door according to claim 5, characterized in that: The buffer mechanism comprises a buffer seat (18) and at least one damping rod (19), wherein the damping rod (19) is installed between the buffer seat (18) and the first side top block, and an adjustment cavity is arranged in the buffer seat (18), and an adjustment component is installed in the adjustment cavity.
7. The slow-closing device for a slow-closing door according to claim 6, characterized in that: The adjustment assembly comprises a longitudinal adjustment slider which is longitudinally displaced in the adjustment cavity, a transverse adjustment slider, and a longitudinally arranged adjustment screw (20); the longitudinal adjustment slider is located at a side of the adjustment cavity away from the damping rod (19); the damping rod (19) is mounted on the transverse adjustment slider; an adjustment hole (21) which is in communication with the adjustment cavity is transversely arranged on the buffer seat (18); the transverse adjustment slider is slidably assembled in the adjustment hole (21); the longitudinal adjustment slider comprises a longitudinal slider base (22) and a first wedge-shaped platform (23); the first wedge-shaped platform (23) is arranged on a side of an end surface of the longitudinal slider base (22) facing the transverse adjustment slider; A first inclined surface (24) is arranged on the first wedge-shaped platform (23); the transverse adjustment slider comprises a transverse slider base (25) and a second wedge-shaped platform (26); the second wedge-shaped platform (26) is arranged on the end surface side of the transverse slider base (25) facing the longitudinal adjustment slider; a second inclined surface (27) is arranged on the second wedge-shaped platform (26); the first inclined surface (24) and the second inclined surface (27) are slidably matched; the buffer seat (18) and the longitudinal adjustment slider are both longitudinally provided with coaxial threaded holes; the adjustment screw (20) is threadedly assembled in the threaded holes of the buffer seat (18) and the longitudinal adjustment slider.
8. The slow-closing device for a slow-closing door according to claim 3, characterized in that: The second side top block comprises a second mounting seat (28) and a second abutting seat (29). The second abutting seat (29) is arranged on the end surface of the second mounting seat (28) facing the rotating table. The end surface of the second abutting seat (29) facing the rotating table is provided with a third boss (30). The end surfaces of the third boss (30) and the second abutting seat (29) located on two sides of the third boss (30) opposite to each other in the vertical direction are provided with abutting grooves (31). The middle position of the abutting grooves (31) is provided with arc grooves (32). A third arc segment (33) is provided in the abutting groove (31) at positions on opposite sides of the corresponding arc groove (32); the third arc segments (33) in the two abutting grooves (31) of the second abutting seat (29) respectively abut against the transition fillets (9) at the corresponding bottom corners (8) of the first base (4) and the third base (6); and the third arc segments (33) in the abutting groove (31) of the third boss (30) respectively abut against the transition fillets (9) at the corresponding bottom corners (8) of the second base (5).
9. The slow-closing device for a slow-closing door according to claim 8, characterized in that: The elastic mechanism comprises a spring support (34) and a spring (35). The spring (35) is installed between the spring support (34) and the second mounting seat (28). The second mounting seat (28) is provided with a spring positioning seat (36) on the end surface facing the spring (35) for positioning and installing the spring (35).
10. The slow-closing device for a slow-closing door according to claim 2, characterized in that: A rotating shaft connecting member connected to the rotating table is arranged on one side of the mounting base, the rotating shaft connecting member comprises a rotating shaft support (53) and a third end shaft (54), the third end shaft (54) is arranged on the side of the rotating shaft support (53) facing the rotating table, and an axial hole (55) connected to the second cavity (2) is arranged on the mounting base, the third end shaft (54) is passed through the axial hole (55) and is mounted in a matching manner with the second end shaft (13).