Manual rotation damping mechanism

Abstract

The invention discloses a manual rotation damping mechanism which comprises a base, an assembly hole is formed in the base, a main shaft is arranged in the assembly hole, the axial direction of the main shaft extends in the vertical direction, and the main shaft is rotationally matched with the assembly hole; the main shaft is sleeved with a plurality of static damping fins and a plurality of dynamic damping fins, the static damping fins and the dynamic damping fins are sequentially and alternately distributed in the axial direction of the main shaft, the static damping fins are connected with the side wall of the assembly hole, and the dynamic damping fins are connected with the side wall of the main shaft. The static damping fin is in damping fit with the dynamic damping fin; when the main shaft drives the dynamic damping fin to rotate relative to the assembly hole, the static damping fin does not rotate relative to the assembly hole, so that damping force is generated between the dynamic damping fin and the static damping fin. The device is reasonable in structural design, and the position of the vehicle-mounted display screen can be manually adjusted and rotated.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted display screens, and in particular to a manual rotation damping mechanism. Background Art

[0002] As the entertainment functions of cars continue to increase and in-car multimedia devices become more and more popular, customers are also demanding higher and higher requirements for in-car displays. At present, most in-car displays are directly fixed on the instrument panel tube beam, and users cannot adjust the position of the in-car central control screen or armrest screen, and cannot adjust it to the best viewing angle according to personal needs; there are also angle-adjustable displays that are driven by motors to adjust the angle, but the control mechanism is complex, the volume is large, the working noise is loud, the cost is high, and the position of the rotating screen cannot be adjusted manually. Summary of the invention

[0003] The purpose of the present invention is to provide a manual rotary damping mechanism, to provide a rotary mechanism with simple structure, convenient operation and easy assembly, to optimize the internal structure design and to solve the problems of complex structure, overly complicated processing and production installation.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a manual rotary damping mechanism, including a base, an assembly hole is provided on the base, a main shaft is provided in the assembly hole, the axial direction of the main shaft extends vertically, and the main shaft rotates in cooperation with the assembly hole; a plurality of static damping plates and a plurality of dynamic damping plates are sleeved on the main shaft, a plurality of the static damping plates and a plurality of the dynamic damping plates are alternately distributed in sequence along the axial direction of the main shaft, a plurality of the static damping plates are connected to the side walls of the assembly hole, a plurality of the dynamic damping plates are connected to the side walls of the main shaft, and the static damping plates and the dynamic damping plates are damping-coordinated; when the main shaft drives the dynamic damping plate to rotate relative to the assembly hole, the static damping plate does not rotate relative to the assembly hole, so that a damping force is generated between the dynamic damping plate and the static damping plate.

[0005] Furthermore, the static damping plate is movably matched with the side wall of the assembly hole in the axial direction of the assembly hole, and is fixedly matched with the side wall of the assembly hole in the circumferential direction of the assembly hole; the dynamic damping plate is movably matched with the side wall of the main shaft in the axial direction of the main shaft, and the dynamic damping plate is fixedly matched with the side wall of the main shaft in the circumferential direction of the main shaft; when the contact between the dynamic damping plate and the static damping plate is adjusted by tension, the damping force generated between the dynamic damping plate and the static damping plate will be changed.

[0006] Furthermore, a retaining ring is provided at the top edge of the main shaft, and the static damping plate and the dynamic damping plate are located below the retaining ring, and the static damping plate or the dynamic damping plate forms an abutment with the retaining ring upward; a main shaft cover is provided below the main shaft, and the static damping plate and the dynamic damping plate are located above the main shaft cover, and the static damping plate or the dynamic damping plate forms an abutment with the main shaft cover downward; the main shaft cover is movably matched with the side wall of the main shaft in the axial direction of the main shaft, and the main shaft cover is fixedly matched with the side wall of the main shaft in the circumferential direction of the main shaft.

[0007] Furthermore, an upwardly recessed movable groove is provided in the middle of the bottom end of the main shaft, a downwardly extending screw column is provided in the middle of the top end of the movable groove, the edge of the main shaft cover upwardly supports the static damping plate or the dynamic damping plate, and an upwardly protruding support cover is provided in the middle of the main shaft cover, and a through hole is provided in the middle of the top wall of the support cover; the support cover extends upward into the interior of the movable groove, and the screw column extends downward into the interior of the support cover through the through hole, a damping compression spring is sleeved on the screw column, and a compression spring screw is locked at the bottom end of the screw column, the edge of the compression spring screw upwardly abuts against the bottom end of the damping compression spring, and the top end of the damping compression spring upward abuts against the inner top surface of the support cover.

[0008] Furthermore, a retaining ring is provided at the top of the assembly hole, the top of the main shaft passes through the retaining ring upward, and the retaining ring abuts against the retaining ring downward; a bottom cover is provided below the assembly hole, the edge of the bottom cover is connected and fixed to the bottom edge of the assembly hole, a through hole is provided in the middle of the bottom cover, the bottom end of the support cover passes through the through hole downward, and the bottom cover supports the main shaft cover upward.

[0009] Furthermore, the inner wall of the retaining ring is sleeved with an upper sleeve, the top end of the main shaft is sleeved with a rubber ring, the rubber ring is located above the retaining ring, the top end of the main shaft passes through the upper sleeve upward and is rotatably engaged with the vertical end of the upper sleeve through the rubber ring, and the lateral end of the upper sleeve is downwardly abutted against the retaining ring; the inner wall of the through hole is sleeved with a lower sleeve, and the bottom end of the support cover passes through the lower sleeve downward and is rotatably engaged with the lower sleeve.

[0010] Furthermore, a limiting boss is provided on the bottom edge of the spindle cover, and a limiting hole is provided on the edge of the bottom cover. The limiting boss is inserted downward into the limiting hole, and the limiting boss can move in the limiting hole. The limiting hole can limit the rotation range of the spindle cover.

[0011] Furthermore, the edge of the bottom cover is connected and fixed to the bottom edge of the assembly hole by a plurality of bottom cover screws; the two side edges of the base are respectively provided with body screw through holes and body positioning holes, and the top surface of the main shaft is provided with a display screen installation positioning hole or a display screen installation positioning column and a display screen screw hole; the upper static damping plate forms an abutment with the retaining ring upward, and the lower static damping plate forms an abutment with the main shaft cover downward.

[0012] Furthermore, the side wall of the main shaft is provided with a plurality of driving shaft slots, and the plurality of driving shaft slots are distributed in sequence around the circumference of the main shaft, and the driving shaft slots extend along the axial direction of the main shaft, and the driving shaft slots are located below the retaining ring; the inner wall of the dynamic damping plate is provided with a plurality of dynamic damping plate blocks, and the plurality of dynamic damping plate blocks are respectively vertically slidably matched with the plurality of driving shaft slots; the top surface of the main shaft cover is provided with a connecting groove, and the edge of the connecting groove is provided with a plurality of main shaft cover blocks, and the support cover is arranged in the middle of the connecting groove, and the plurality of main shaft cover blocks are respectively vertically slidably matched with the plurality of driving shaft slots.

[0013] Furthermore, the side wall of the assembly hole is provided with a plurality of base clamping positions, and the plurality of base clamping positions are distributed in sequence around the circumference of the assembly hole, and the base clamping positions extend along the axial direction of the assembly hole, and the base clamping positions are located below the retaining ring; the outer wall of the static damping plate is provided with a plurality of static damping plate slots, and the plurality of static damping plate slots are respectively vertically slidably matched with a plurality of base clamping positions.

[0014] In summary, the technical solution of the present invention has the following beneficial effects: the structural design of the present invention is reasonable, (1) by including a base, a mounting hole is provided on the base, a main shaft is provided in the mounting hole, the axial direction of the main shaft extends vertically, and the main shaft and the mounting hole are rotatably matched; thus, the vehicle-mounted display screen can be directly fixed on the main shaft, and since the main shaft and the mounting hole are rotatably matched, the user can manually adjust the position of the vehicle-mounted display screen to adjust it to the optimal viewing angle position according to personal needs. (2) A plurality of static damping plates and a plurality of dynamic damping plates are sleeved on the main shaft, and the plurality of static damping plates and the plurality of dynamic damping plates are alternately distributed along the axial direction of the main shaft, and the plurality of static damping plates are connected to the side walls of the assembly hole, and the plurality of dynamic damping plates are connected to the side walls of the main shaft, and the static damping plates and the dynamic damping plates are in damping coordination; when the main shaft drives the dynamic damping plate to rotate relative to the assembly hole, the static damping plate does not rotate relative to the assembly hole, so that a damping force is generated between the dynamic damping plate and the static damping plate; therefore, under the damping coordination of the static damping plate and the dynamic damping plate, the main shaft will be subjected to the damping force when rotating relative to the assembly hole, thereby preventing the vehicle-mounted display screen from shaking at ordinary times, and when subjected to an external force, when the applied external force is greater than the damping force of the rotation damping mechanism, the main shaft drives the dynamic damping plate to rotate together, and at this time, the base prevents the static damping plate from rotating together with the main shaft. From the above analysis, it can be seen that the present invention optimizes the internal parts of the rotary damping mechanism through reasonable structural design, reduces the number of parts, reduces the processing steps, and reduces the difficulty of production and assembly, thereby reducing costs. The position of the rotating vehicle display screen can be adjusted manually. The idea of ​​simplified design is used to solve the problem that the rotating mechanism is too complicated, and the resulting process and production are also complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Figure 3 is along Figure 2 A schematic diagram of the cross-sectional structure obtained by cutting along the AA cutting line;

[0018] Figure 4 It is a schematic diagram of the explosion structure of the present invention;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention without the base and the bottom cover;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above;

[0021] Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the main shaft and the dynamic damping plate of the present invention;

[0022] Figure 8 It is a bottom-up three-dimensional structural schematic diagram of the cooperation between the base and the static damping sheet of the present invention;

[0023] Description of reference numerals: 1-base, 2-static damping plate, 3-upper shaft sleeve, 4-rubber ring, 5-spindle, 6-dynamic damping plate, 7-damping compression spring, 8-spindle cover, 9-compression spring screw, 10-lower shaft sleeve, 11-bottom cover, 12-bottom cover screw, 13-body screw through hole, 14-body positioning hole, 15-display screen installation positioning column, 16-display screen screw hole;

[0024] 101-assembly hole, 102-retaining ring, 103-base clamping position; 201-static resistance plate clamping slot; 501-retaining ring, 502-movable slot, 503-screw column, 504-active shaft clamping slot; 601-dynamic damping plate clamping block; 801-support cover, 802-through hole, 803-limiting boss, 804-connecting groove, 805-spindle cover clamping block; 1101-through hole, 1102-limiting hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0026] In the present invention, for a clearer description, the following explanation is made: the observer faces the attached Figure 1 Observation is performed, the observer's upper side is set as upper, and the observer's lower side is set as lower. It should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "upper side", "lower side" and the like in the text indicate directions or positional relationships based on directions or positional relationships set in the accompanying drawings, which are only for the convenience of clearly describing the present invention, and do not indicate or imply that the structure or component referred to must have a specific direction or be constructed in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0027] See also Figures 1 to 8The present embodiment provides a manual rotary damping mechanism, comprising a base 1, a mounting hole 101 is provided on the base 1, a main shaft 5 is provided in the mounting hole 101, the axial direction of the main shaft 5 extends vertically, and the main shaft 5 rotates in cooperation with the mounting hole 101; a plurality of static damping plates 2 and a plurality of dynamic damping plates 6 are sleeved on the main shaft 5, the plurality of static damping plates 2 and the plurality of dynamic damping plates 6 are alternately distributed in sequence along the axial direction of the main shaft 5, the plurality of static damping plates 2 are connected to the side wall of the mounting hole 101, the plurality of dynamic damping plates 6 are connected to the side wall of the main shaft 5, and the static damping plates 2 and the dynamic damping plates 6 are damping-coordinated; when the main shaft 5 drives the dynamic damping plates 6 to rotate relative to the mounting hole 101, the static damping plates 2 do not rotate relative to the mounting hole 101, so that a damping force is generated between the dynamic damping plates 6 and the static damping plates 2. Function: (1) The base includes a mounting hole, a main shaft is provided in the mounting hole, the main shaft extends in the vertical direction, and the main shaft and the mounting hole are rotatably matched; thus, the vehicle display screen can be directly fixed on the main shaft. Since the main shaft and the mounting hole are rotatably matched, the user can manually adjust the position of the vehicle display screen to adjust it to the best viewing angle according to personal needs. (2) A plurality of static damping plates and a plurality of dynamic damping plates are sleeved on the main shaft, and the plurality of static damping plates and the plurality of dynamic damping plates are alternately distributed along the axial direction of the main shaft, and the plurality of static damping plates are connected to the side walls of the assembly hole, and the plurality of dynamic damping plates are connected to the side walls of the main shaft, and the static damping plates and the dynamic damping plates are in damping coordination; when the main shaft drives the dynamic damping plate to rotate relative to the assembly hole, the static damping plate does not rotate relative to the assembly hole, so that a damping force is generated between the dynamic damping plate and the static damping plate; therefore, under the damping coordination of the static damping plate and the dynamic damping plate, the main shaft will be subjected to the damping force when rotating relative to the assembly hole, thereby preventing the vehicle-mounted display screen from shaking at ordinary times, and when subjected to an external force, when the applied external force is greater than the damping force of the rotation damping mechanism, the main shaft drives the dynamic damping plate to rotate together, and at this time, the base prevents the static damping plate from rotating together with the main shaft. From the above analysis, it can be seen that the present invention optimizes the internal parts of the rotary damping mechanism through reasonable structural design, reduces the number of parts, reduces the processing steps, and reduces the difficulty of production and assembly, thereby reducing costs. The position of the rotating vehicle display screen can be adjusted manually. The idea of ​​simplified design is used to solve the problem that the rotating mechanism is too complicated, and the resulting process and production are also complicated.

[0028] Specifically, the static damping plate 2 moves and cooperates with the side wall of the assembly hole 101 in the axial direction of the assembly hole 101, and the static damping plate 2 is fixedly matched with the side wall of the assembly hole 101 in the circumferential direction of the assembly hole 101. The dynamic damping plate 6 moves and cooperates with the side wall of the main shaft 5 in the axial direction of the main shaft 5, and the dynamic damping plate 6 is fixedly matched with the side wall of the main shaft 5 in the circumferential direction of the main shaft 5; when the contact between the dynamic damping plate 6 and the static damping plate 2 is adjusted by tension, the damping force generated between the dynamic damping plate 6 and the static damping plate 2 will be changed. Function: Since the dynamic damping plate 6 and the static damping plate 2 can be adjusted up and down, when the contact between the dynamic damping plate 6 and the static damping plate 2 is adjusted by tension, the damping force can be adjusted according to the tightness of the contact.

[0029] Specifically, a retaining ring 501 is provided at the top edge of the main shaft 5, and the static damping plate 2 and the dynamic damping plate 6 are located below the retaining ring 501, and the static damping plate 2 or the dynamic damping plate 6 abuts against the retaining ring 501 upwards; a main shaft cover 8 is provided below the main shaft 5, and the static damping plate 2 and the dynamic damping plate 6 are located above the main shaft cover 8, and the static damping plate 2 or the dynamic damping plate 6 abuts against the main shaft cover 8 downwards; the main shaft cover 8 is movably matched with the side wall of the main shaft 5 in the axial direction of the main shaft 5, and the main shaft cover 8 is fixedly matched with the side wall of the main shaft 5 in the circumferential direction of the main shaft 5. Function: The static damping plate 2 and the dynamic damping plate 6 are pressed by the retaining ring 501 and the main shaft cover 8, and since the main shaft cover 8 can move up and down, it is convenient to adjust the tightness of the contact between the static damping plate 2 and the dynamic damping plate 6.

[0030] Specifically, an upwardly recessed movable groove 502 is provided in the middle of the bottom end of the main shaft 5, a downwardly extending screw column 503 is provided in the middle of the top end of the movable groove 502, the edge of the main shaft cover 8 upwardly supports the static damping plate 2 or the dynamic damping plate 6, and an upwardly protruding support cover 801 is provided in the middle of the main shaft cover 8, and a through hole 802 is provided in the middle of the top wall of the support cover 801; the support cover 801 extends upward into the interior of the movable groove 502, and the screw column 503 extends downward into the interior of the support cover 801 through the through hole 802, a damping compression spring 7 is sleeved on the screw column 503, and a compression spring screw 9 is locked at the bottom end of the screw column 503, the edge of the compression spring screw 9 abuts against the bottom end of the damping compression spring 7 upward, and the top end of the damping compression spring 7 abuts against the inner top surface of the support cover 801 upward. Function: Since the damping compression spring 7 can provide elastic support force, the dynamic damping plate 6 and the static damping plate 2 can be elastically compressed in the axial direction, so that the damping force is transmitted from the damping compression spring 7 to the spindle cover 8 to the static damping plate 2, then to the dynamic damping plate 6, then to the static damping plate 2, and finally to the output at the end of the spindle 5, so that the damping force can be continuously stable. Through the fixation of the compression spring screw 9, the damping force realizes a closed conduction loop in the axial direction. The size of the damping force can be achieved by debugging the specifications of different damping compression springs 7 in the early stage.

[0031] Specifically, a retaining ring 102 is provided at the top of the assembly hole 101, the top of the spindle 5 passes through the retaining ring 102 upward, and the retaining ring 102 abuts against the retaining ring 501 downward; a bottom cover 11 is provided below the assembly hole 101, the edge of the bottom cover 11 is connected and fixed to the bottom edge of the assembly hole 101, a through hole 1101 is provided in the middle of the bottom cover 11, the bottom end of the support cover 801 passes through the through hole 1101 downward, and the bottom cover 11 supports the spindle cover 8 upward. Function: The setting of the retaining ring 102 and the spindle cover 8 limits the spindle in the up and down directions.

[0032] Specifically, the inner wall of the retaining ring 102 is sleeved with an upper sleeve 3, and the top end of the main shaft 5 is sleeved with a rubber ring 4, which is located above the retaining ring 501. The top end of the main shaft 5 passes through the upper sleeve 3 upward and rotates with the vertical end of the upper sleeve 3 through the rubber ring 4, and the lateral end of the upper sleeve 3 abuts against the retaining ring 501 downward; the inner wall of the through hole 1101 is sleeved with a lower sleeve 10, and the bottom end of the support cover 801 passes through the lower sleeve 10 downward and rotates with the lower sleeve 10. Function: The setting of the upper sleeve 3 and the rubber ring 4 enables the top end of the main shaft 5 to rotate with the assembly hole 101. The setting of the lower sleeve 10 enables the bottom end of the main shaft cover 8 to rotate with the through hole 1101, so that the entire rotor assembly rotates smoothly together.

[0033] Specifically, the bottom edge of the spindle cover 8 is provided with a limiting boss 803, and the edge of the bottom cover 11 is provided with a limiting hole 1102. The limiting boss 803 is inserted downward into the limiting hole 1102, and the limiting boss 803 can move in the limiting hole 1102. The limiting hole 1102 can limit the rotation range of the spindle cover 8. Function: The rotation limit of the mechanism is realized by the bottom limiting boss and the limiting hole. At present, this mechanism is designed according to the maximum rotation angle of 15 degrees to the left and right. If there are other different rotation angle requirements, it can be adjusted.

[0034] Specifically, the edge of the bottom cover 11 is connected and fixed to the bottom edge of the assembly hole 101 by a plurality of bottom cover screws 12; the two side edges of the base 1 are respectively provided with body screw through holes 13 and body positioning holes 14, and the top surface of the spindle 5 is provided with display screen installation positioning holes or display screen installation positioning columns 15 and display screen screw holes 16; the upper static damping plate 2 is abutted against the retaining ring 501 upward, and the lower static damping plate 2 is abutted against the spindle cover 8 downward. Function: The setting of the body screw through holes 13 and the body positioning holes 14 can realize the connection and fixation with the body, and the setting of the display screen installation positioning holes or display screen installation positioning columns 15 and display screen screw holes 16 can realize the connection and fixation with the vehicle-mounted display screen; the dynamic damping plate 6 is sandwiched between the static damping plates 2, which can facilitate the rotating spindle cover 8 to transmit the damping force upward to the non-rotating static damping plate 2, so as to realize better transmission of the damping force. Preferably, the number of static damping plates 2 is five, the number of dynamic damping plates 6 is four, and the number of bottom cover screws 12 is four. The number of the body screw through holes 13 is four, the number of the body positioning holes 14 is two, the number of the display screen installation positioning holes or display screen installation positioning columns 15 is two, and the number of the display screen screw holes 16 is four.

[0035] Specifically, the side wall of the main shaft 5 is provided with a plurality of active shaft slots 504, which are sequentially distributed around the circumference of the main shaft 5, extend along the axial direction of the main shaft 5, and are located below the retaining ring 501; the inner wall of the dynamic damping plate 6 is provided with a plurality of dynamic damping plate blocks 601, which are respectively vertically slidably matched with the plurality of active shaft slots 504; the top surface of the main shaft cover 8 is provided with a connecting groove 804, the edge of the connecting groove 804 is provided with a plurality of main shaft cover blocks 805, the support cover 801 is arranged in the middle of the connecting groove 804, and the plurality of main shaft cover blocks 805 are respectively vertically slidably matched with the plurality of active shaft slots 504. Function: When the applied external force is greater than the damping force of the rotating mechanism, the main shaft 5 drives the dynamic damping plate 6 to rotate together through the active shaft slot 504.

[0036] Specifically, the side wall of the assembly hole 101 is provided with a plurality of base clamping positions 103, which are sequentially distributed around the circumference of the assembly hole 101, and the base clamping positions 103 extend along the axial direction of the assembly hole 101, and the base clamping positions 103 are located below the retaining ring 102; the outer wall of the static damping plate 2 is provided with a plurality of static damping plate clamping grooves 201, and the plurality of static damping plate clamping grooves 201 are respectively vertically slidably matched with the plurality of base clamping positions 103. Function: The base 1 prevents the 2 static damping plates from rotating together with the main shaft through the base clamping positions.

[0037] Rotary damping mechanism assembly steps:

[0038] like Figure 3As shown, first put the static damping plate 2 onto the main shaft 5, then put the dynamic damping plate 6 onto the static damping plate 2, and pay attention to aligning the dynamic damping plate block 601 of the dynamic damping plate 6 with the driving shaft card slot 504 of the main shaft 5, and then alternately put all the static damping plates 2 and dynamic damping plates 6 onto the main shaft 5, and then align the main shaft cover 8 with the main shaft 5 card position and install it, and then put the damping spring 7 onto the middle column of the main shaft 5 (that is, the screw column 503), and finally lock the compression spring screw 9. Note: When assembling the rotating mechanism rotor assembly, the outer card position (that is, the static damping plate card slot 201) of each static damping plate 2 must be aligned, as shown below Figure 5 It is a rotating mechanism rotor assembly.

[0039] like Figure 3 As shown, put the rubber ring 4 on the assembled rotor assembly, then install the shaft sleeve 3 and install it on the base 1, then install the lower shaft sleeve 10 into the corresponding slot of the main shaft cover 8, then align the slot of the static baffle 2 of the rotating mechanism rotor assembly (i.e., the static baffle slot 201) with the position of the base 1 (i.e., the base position 103) and install it into the base 1, then align the bottom cover 11 with the base 1 to position and install it, and finally lock the bottom cover screws 12 in sequence.

[0040] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A manual rotary damping mechanism, comprising a base (1), characterized in that: The base (1) is provided with an assembly hole (101), a main shaft (5) is provided in the assembly hole (101), the axial direction of the main shaft (5) extends vertically, and the main shaft (5) and the assembly hole (101) are rotatably matched; a plurality of static damping plates (2) and a plurality of dynamic damping plates (6) are sleeved on the main shaft (5), the plurality of static damping plates (2) and the plurality of dynamic damping plates (6) are alternately distributed in sequence along the axial direction of the main shaft (5), and the plurality of static damping plates (2) and the plurality of dynamic damping plates (6) are alternately distributed in sequence along the axial direction of the main shaft (5). The sheet (2) is connected to the side wall of the assembly hole (101), a plurality of the dynamic damping sheets (6) are connected to the side wall of the main shaft (5), and the static damping sheet (2) and the dynamic damping sheet (6) are damping-coordinated; when the main shaft (5) drives the dynamic damping sheet (6) to rotate relative to the assembly hole (101), the static damping sheet (2) does not rotate relative to the assembly hole (101), so that a damping force is generated between the dynamic damping sheet (6) and the static damping sheet (2).

2. A manual rotary damping mechanism according to claim 1, characterized in that: The static damping plate (2) is movably matched with the side wall of the assembly hole (101) in the axial direction of the assembly hole (101), and the static damping plate (2) is fixedly matched with the side wall of the assembly hole (101) in the circumferential direction of the assembly hole (101); the dynamic damping plate (6) is movably matched with the side wall of the main shaft (5) in the axial direction of the main shaft (5), and the dynamic damping plate (6) is fixedly matched with the side wall of the main shaft (5) in the circumferential direction of the main shaft (5); when the contact between the dynamic damping plate (6) and the static damping plate (2) is adjusted in tension, the damping force generated between the dynamic damping plate (6) and the static damping plate (2) will be changed.

3. A manual rotary damping mechanism according to claim 2, characterized in that: A retaining ring (501) is provided at the top edge of the main shaft (5), the static damping plate (2) and the dynamic damping plate (6) are located below the retaining ring (501), and the static damping plate (2) or the dynamic damping plate (6) is upwardly abutted against the retaining ring (501); a main shaft cover (8) is provided below the main shaft (5), the static damping plate (2) and the dynamic damping plate (6) are located above the main shaft cover (8), and the static damping plate (2) or the dynamic damping plate (6) is downwardly abutted against the main shaft cover (8); the main shaft cover (8) is movably matched with the side wall of the main shaft (5) in the axial direction of the main shaft (5), and the main shaft cover (8) is fixedly matched with the side wall of the main shaft (5) in the circumferential direction of the main shaft (5).

4. A manual rotary damping mechanism according to claim 3, characterized in that: An upwardly recessed movable groove (502) is provided in the middle of the bottom end of the spindle (5), a downwardly extending screw column (503) is provided in the middle of the top end of the movable groove (502), the edge of the spindle cover (8) upwardly supports the static damping plate (2) or the dynamic damping plate (6), an upwardly protruding support cover (801) is provided in the middle of the spindle cover (8), a through hole (802) is provided in the middle of the top wall of the support cover (801); the support cover (801) extends upward into the Inside the movable groove (502), the screw column (503) extends downward into the interior of the support cover (801) through the through hole (802), and a damping compression spring (7) is sleeved on the screw column (503). The bottom end of the screw column (503) is locked with a compression spring screw (9), and the edge of the compression spring screw (9) is upwardly abutted against the bottom end of the damping compression spring (7), and the top end of the damping compression spring (7) is upwardly abutted against the inner top surface of the support cover (801).

5. A manual rotary damping mechanism according to claim 4, characterized in that: A retaining ring (102) is provided at the top of the assembly hole (101), the top of the main shaft (5) passes through the retaining ring (102) upwards, and the retaining ring (102) abuts against the retaining ring (501) downwards; a bottom cover (11) is provided below the assembly hole (101), the edge of the bottom cover (11) is connected and fixed to the bottom edge of the assembly hole (101), a through hole (1101) is provided in the middle of the bottom cover (11), the bottom end of the support cover (801) passes through the through hole (1101) downwards, and the bottom cover (11) supports the main shaft cover (8) upwards.

6. A manual rotary damping mechanism according to claim 5, characterized in that: The inner wall of the retaining ring (102) is sleeved with an upper shaft sleeve (3), the top end of the main shaft (5) is sleeved with a rubber ring (4), the rubber ring (4) is located above the retaining ring (501), the top end of the main shaft (5) passes through the upper shaft sleeve (3) upwards and is rotatably engaged with the vertical end of the upper shaft sleeve (3) through the rubber ring (4), and the lateral end of the upper shaft sleeve (3) is downwardly abutted against the retaining ring (501); the inner wall of the through hole (1101) is sleeved with a lower shaft sleeve (10), the bottom end of the support cover (801) passes through the lower shaft sleeve (10) downwards and is rotatably engaged with the lower shaft sleeve (10).

7. A manual rotary damping mechanism according to claim 5, characterized in that: The bottom edge of the spindle cover (8) is provided with a limiting boss (803), and the edge of the bottom cover (11) is provided with a limiting hole (1102). The limiting boss (803) is inserted downward into the limiting hole (1102), and the limiting boss (803) can move in the limiting hole (1102). The limiting hole (1102) can limit the rotation range of the spindle cover (8).

8. A manual rotary damping mechanism according to claim 5, characterized in that: The edge of the bottom cover (11) is connected and fixed to the bottom edge of the assembly hole (101) by means of a plurality of bottom cover screws (12); the two side edges of the base (1) are respectively provided with body screw through holes (13) and body positioning holes (14); the top surface of the spindle (5) is provided with a display screen installation positioning hole or a display screen installation positioning column (15) and a display screen screw hole (16); the upper static damping plate (2) is abutted upwardly against the retaining ring (501), and the lower static damping plate (2) is abutted downwardly against the spindle cover (8).

9. A manual rotation damping mechanism according to any one of claims 3 to 8, characterized in that: The side wall of the main shaft (5) is provided with a plurality of driving shaft card slots (504), the plurality of driving shaft card slots (504) are sequentially distributed around the circumference of the main shaft (5), the driving shaft card slots (504) extend along the axial direction of the main shaft (5), and the driving shaft card slots (504) are located below the retaining ring (501); the inner wall of the dynamic damping plate (6) is provided with a plurality of dynamic damping plate card blocks (601), and the plurality of dynamic damping plate card blocks (601) are provided on the inner wall of the dynamic damping plate (6). The sheet clamping blocks (601) are respectively vertically slidably matched with a plurality of the active shaft clamping slots (504); a connecting groove (804) is provided on the top surface of the spindle cover (8), a plurality of spindle cover clamping blocks (805) are provided on the edge of the connecting groove (804), the support cover (801) is arranged in the middle of the connecting groove (804), and a plurality of the spindle cover clamping blocks (805) are respectively vertically slidably matched with a plurality of the active shaft clamping slots (504).

10. A manual rotation damping mechanism according to any one of claims 5 to 8, characterized in that: The side wall of the assembly hole (101) is provided with a plurality of base clamping positions (103), the plurality of base clamping positions (103) are sequentially distributed around the circumference of the assembly hole (101), the base clamping positions (103) extend along the axial direction of the assembly hole (101), and the base clamping positions (103) are located below the retaining ring (102); the outer wall of the static damping plate (2) is provided with a plurality of static damping plate clamping grooves (201), and the plurality of static damping plate clamping grooves (201) are respectively vertically slidably matched with the plurality of base clamping positions (103).

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