Damper for rotation and armrest box for vehicle

Abstract

The utility model discloses a damper for rotation and an armrest box for a vehicle. The damper comprises a first pivot, a second pivot, a transmission assembly, a limiting assembly and a torsion assembly. The transmission assembly comprises a first supporting plate and a second supporting plate. A first transmission gear, a second transmission gear, a third transmission gear and a fourth transmission gear are arranged between the first supporting plate and the second supporting plate. The limiting assembly comprises an angle limiting plate, arc-shaped limiting grooves are formed in the two ends of the angle limiting plate, and the limiting assembly further comprises a first limiting wheel and a second limiting wheel. By means of the double-axis design of the first pivot and the second pivot, large-angle rotation can be easily achieved under the condition that an avoiding structure is not designed, the rotation angle can be properly positioned through the arrangement of the torsion assembly, and therefore the probability of loosening and shaking can be reduced, and in addition, when the first pivot and the second pivot rotate relatively, the rotation angle can be adjusted. And the arm stress of the rotating device is not increased, and the probability of breakage and damage in a large-angle state can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle accessories, in particular to a rotation damper and a vehicle armrest box. Background Art

[0002] As consumers increasingly prioritize the quality and comfort of their vehicle interiors, clamshell-style armrest boxes are gaining popularity due to their convenience and efficient space utilization. To achieve this, a rotating mechanism is typically installed between the cover and the armrest box. This mechanism allows the cover to be easily opened to provide more storage space, or closed to provide greater operating space. However, most of the existing rotating devices use a tension spring structure to generate tension to facilitate opening 90-180 degrees, and use an external structure to position the opening angle. When closed, it is locked by the card slot of the armrest box and the card hook of the cover body, which still has the following problems: 1. The rotating device without a damping design is prone to wear after multiple flips, which can easily cause shaking and abnormal noise; 2. When the cover body is flipped to 180 degrees, the stress arm increases and the rotating device is prone to breakage; 3. The flipping action can only revolve around the axis of the rotating device. When a large angle, such as 180 degrees, needs to be opened, a avoidance structure must be designed on the cover body or the armrest box body to achieve it. This will increase the space occupied by the armrest box; 4. The card slot, card hook and other external structures used to lock the angle not only have poor appearance, but also require additional force each time locking, which reduces the user experience. In addition, after multiple cooperation, the locking function of the aforementioned external structure will gradually fail and have a poor service life. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned problems of the prior art and to provide a rotary damper and a vehicle armrest box, which have the advantages of stable and reliable operation, small space occupation, long service life and beautiful appearance.

[0004] The purpose of this utility model is mainly achieved through the following technical solutions:

[0005] A rotation damper comprising a first pivot, a second pivot, a transmission assembly, a limit assembly and a torque assembly;

[0006] The transmission assembly includes a first support plate and a second support plate, both ends of the first support plate and the second support plate are respectively sleeved on the first pivot and the second pivot, and a first transmission gear, a second transmission gear, a third transmission gear and a fourth transmission gear that are meshed in sequence are rotatably provided between the first support plate and the second support plate, the first transmission gear is linked and sleeved on the first pivot, and the fourth transmission gear is linked and sleeved on the second pivot;

[0007] The limiting assembly includes an angle limiting plate, the two ends of the angle limiting plate are respectively sleeved on the first pivot and the second pivot, and the two ends of the angle limiting plate are each provided with an arc-shaped limiting groove. The limiting assembly also includes a first limiting wheel sleeved on the first pivot and a second limiting wheel sleeved on the second pivot, and the first limiting wheel and the second limiting wheel are both provided with a limiting protrusion that can slide with the arc-shaped limiting groove.

[0008] The torsion assembly includes a first torsion group having an interference effect on the first pivot rotation and a second torsion group having an interference effect on the second pivot rotation.

[0009] Furthermore, the first torsion group includes a plurality of first elastic pieces sleeved on the first pivot, a first interference piece linked to the first pivot, and a first nut threadedly connected to the end of the first pivot, the first nut integrally abutting the first elastic piece and the first interference piece against the first support plate;

[0010] The second torsion group includes several second elastic pieces sleeved on the second pivot, a second interference piece linked to the second pivot and a second nut threadedly connected to the end of the second pivot, and the second nut integrally abuts the second elastic piece and the second interference piece against the first support plate.

[0011] Furthermore, the second torque group further comprises a self-locking wheel linked and sleeved on the second pivot, and the self-locking wheel is provided with a locking protrusion extending along its axial direction;

[0012] A locking groove is provided on the end surface of the first supporting plate, which can be inserted into and slidably matched with the locking protrusion.

[0013] Furthermore, the first torsion group includes two first interference plates, and a plurality of first elastic plates are located between the two first interference plates.

[0014] Furthermore, the first torsion group also includes a first separator connected to the first pivot, and the second torsion group also includes a second separator connected to the second pivot. The first separator and the second separator are both located in the area between the second support plate and the angle limit plate.

[0015] Furthermore, both end surfaces of the first interference piece, the second interference piece, the first separator and the second separator are provided with first concave friction grooves.

[0016] Furthermore, the first pivot and the second pivot each include a connecting section, a separating section, a linkage interference section and a threaded section that are connected in sequence;

[0017] The limiting assembly, transmission assembly and torque assembly are sequentially arranged on the linkage interference section and the threaded section;

[0018] The connecting section of the first pivot is connected to the first connecting plate, and the connecting section of the second pivot is connected to the second connecting plate.

[0019] A vehicle armrest box comprises a box body, a cover body and a rotating structure, wherein the rotating structure comprises at least one rotation damper as described above;

[0020] The first connecting plate is connected to the box body, and the second connecting plate is connected to the cover body;

[0021] The box body is provided with a first paving groove, and the cover body is provided with a second paving groove.

[0022] Furthermore, two rotation dampers are provided, a first synchronization rod is connected between the first pivots of the two rotation dampers, and a second synchronization rod is connected between the second pivots of the two rotation dampers.

[0023] Furthermore, two rotation dampers are provided, and the outer shells of the two symmetrically arranged rotation dampers are connected to a shielding shell.

[0024] Furthermore, both ends of the shielding shell have a placement cavity for accommodating the rotation damper, the cavity wall of the placement cavity is provided with a connecting pipe, and the outer end of the connecting pipe is provided with a threaded blind hole;

[0025] It also includes a fastening screw, which passes through the angle limiting plate and is threadedly engaged with the threaded blind hole;

[0026] The first support plate and the second support plate are both provided with a clearance opening for the connection pipe.

[0027] The present invention has the following beneficial effects: in the rotation damper and vehicle armrest box described in the present invention, the dual-axis design of the first pivot and the second pivot can easily realize large-angle rotation without designing a avoidance structure, and the rotation angle can be appropriately positioned by the setting of the torsion component, which can reduce the probability of loosening and shaking. In addition, when the two rotate relative to each other, the arm force of the rotating device will not be increased, so the probability of fracture and breakage in the large-angle state can be reduced; wherein, by the setting of the first transmission gear, the second transmission gear, the third transmission gear and the fourth transmission gear, on the one hand, the direction of relative rotation between the first pivot and the second pivot can be satisfied. On the other hand, the provision of multiple transmission gears can also meet the position requirements of the box body connected to the first pivot and the cover body connected to the second pivot in closing and large-angle rotation, which can reduce the space occupied by the armrest box; through the sliding cooperation of the limiting protrusion and the arc-shaped limiting groove, the relative rotation between the first pivot (box body) and the second pivot (cover body) can be limited by angle to avoid excessive rotation of the two, and the stability of the relative rotation can be further improved to avoid accidental deviation; through the cooperation of the locking protrusion and the locking groove, the second pivot (cover body) can be avoided from accidental relative rotation. For this reason, there is no need to set an external locking structure for self-locking operation, which can achieve the effect of structural optimization and beautification. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative work.

[0029] Figure 1 and Figure 2 This is a schematic structural diagram of a specific embodiment of the vehicle armrest box of the utility model when closed;

[0030] Figure 3 and Figure 4 This is a structural schematic diagram of a specific embodiment of the vehicle armrest box of the utility model when it is rotated 180 degrees;

[0031] Figure 5 and Figure 6 This is a schematic structural diagram of a specific embodiment of the rotation damper of the present utility model when closed;

[0032] Figure 7 and Figure 8 This is a schematic structural diagram of a specific embodiment of the rotation damper of the present invention when rotating 180 degrees;

[0033] Figure 9 This is a schematic structural diagram of the shielding housing and the rotation damper of the present invention when they are closed;

[0034] Figure 10 This is a schematic structural diagram of the shielding housing and the rotation damper of the present invention when they rotate 180°;

[0035] Figure 11 and 12 This is a structural schematic diagram of a specific embodiment of the shielding housing of the present invention;

[0036] Figure 13 This is a structural diagram of a specific embodiment of the first pivot, the second pivot, and the torsion assembly of the present utility model;

[0037] Figure 14 This is a structural diagram of a specific embodiment of the first elastic piece and the second elastic piece of the utility model;

[0038] Figure 15 This is a structural diagram of a specific embodiment of the first pivot and the second pivot described in the present utility model;

[0039] Figure 16 and Figure 17 This is a structural diagram of a specific embodiment of the angle limiting plate, the first limiting wheel, and the second limiting wheel of the present invention;

[0040] Figure 18 This is a structural diagram of a specific embodiment of the first limiting wheel of the present utility model;

[0041] Figure 19 This is a structural schematic diagram of a specific embodiment of the first support plate of the present utility model;

[0042] Figure 20 The figure is a structural schematic diagram of a specific embodiment of the self-locking wheel described in the utility model.

[0043] Among them, the names of the components corresponding to the figure marks are as follows: 10. First pivot, 11. Connecting section, 12. Separating section, 13. Linking interference section, 14. Threaded section, 20. Second pivot, 31. First support plate, 32. Second support plate, 33. First transmission gear, 34. Second transmission gear, 35. Third transmission gear, 36. Fourth transmission gear, 37. Giving way, 41. Angle limiting plate, 42. Arc limiting groove, 43. First limiting wheel, 44. Second limiting wheel, 45. Limiting protrusion, 46. Through hole, 51. First elastic sheet, 52. First interference sheet, 53. First nut, 54. Second elastic piece, 55. Second interference piece, 56. Second nut, 57. Self-locking wheel, 58. Locking protrusion, 59. Locking groove, 510. First friction groove, 511. First separator, 512. Second separator, 513. Second friction groove, 60. Box body, 61. First clearance groove, 70. Cover body, 71. Second clearance groove, 81. First connecting plate, 82. Second connecting plate, 83. Second synchronization rod, 84. First synchronization rod, 90. Shielding shell, 91. Connecting pipe, 92. Threaded blind hole, 93. Fastening screw, 94. Placement cavity, 100. Rotation damper. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments described in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0045] Example 1

[0046] like Figures 1 to 20 As shown, the rotation damper includes a first pivot 10, a second pivot 20, a transmission assembly, a limit assembly and a torsion assembly;

[0047] The transmission assembly includes a first support plate 31 and a second support plate 32. Both ends of the first support plate 31 and the second support plate 32 are respectively sleeved on the first pivot 10 and the second pivot 20. A first transmission gear 33, a second transmission gear 34, a third transmission gear 35 and a fourth transmission gear 36 that are meshed in sequence are rotatably provided between the first support plate 31 and the second support plate 32. The first transmission gear 33 is sleeved on the first pivot 10 in a linked manner, and the fourth transmission gear 36 is sleeved on the second pivot 20 in a linked manner.

[0048] The limiting assembly includes an angle limiting plate 41, the two ends of which are respectively sleeved on the first pivot 10 and the second pivot 20, and arc-shaped limiting grooves 42 are formed on both ends of the angle limiting plate 41. The limiting assembly also includes a first limiting wheel 43 linked to the first pivot 10 and a second limiting wheel 44 linked to the second pivot 20. The first limiting wheel 43 and the second limiting wheel 44 are both provided with limiting protrusions 45 that can slide with the arc-shaped limiting grooves 42.

[0049] The torsion assembly includes a first torsion group that interferes with the rotation of the first pivot 10 and a second torsion group that interferes with the rotation of the second pivot 20 .

[0050] In this embodiment, the transmission assembly can achieve the linked rotation between the first pivot 10 and the second pivot 20. The arrangement of the first transmission gear 33, the second transmission gear 34, the third transmission gear 35, and the fourth transmission gear 36 can, on the one hand, meet the relative rotation direction requirements between the first pivot 10 and the second pivot 20. On the other hand, the arrangement of the multiple transmission gears can also meet the position requirements of the external structure (box) connected to the first pivot 10 and the external structure (cover) connected to the second pivot 20 in the closed (rotation angle of 0°) and large-angle rotation (rotation angle of up to 180°). When the second pivot 20 is rotated relative to the first pivot 10, the first torsion group can provide interference and output torque to the first pivot 10, and the second torsion group can provide interference and output torque to the second pivot 20. In this way, the first pivot 10 and the second pivot 20 can rotate smoothly and the rotation angle can be positioned. Through the sliding cooperation between the limiting protrusion 45 and the arc-shaped limiting groove 42, the relative rotation between the first pivot 10 and the second pivot 20 can be limited by angle to avoid excessive rotation of the two, and the stability of the relative rotation can be further improved to avoid accidental deviation.

[0051] Preferably, the first torsion group includes a plurality of first elastic pieces 51 sleeved on the first pivot 10, a first interference piece 52 linked to the first pivot 10, and a first nut 53 threadedly connected to the end of the first pivot 10. The first nut 53 integrally abuts the first elastic piece 51 and the first interference piece 52 against the first support plate 31.

[0052] The second torsion group includes several second elastic pieces 54 sleeved on the second pivot 20, a second interference piece 55 linked to the second pivot 20 and a second nut 56 threadedly connected to the end of the second pivot 20. The second nut 56 integrally abuts the second elastic piece 54 and the second interference piece 55 on the first support plate 31.

[0053] In this embodiment, the first nut 53 can be used to cooperate with the thread of the first pivot 10 to adjust the interference force of the first elastic piece 51 and the first interference piece 52 on the first pivot 10, and the second nut 56 can be used to cooperate with the thread of the second pivot 20 to adjust the interference force of the second elastic piece 54 and the second interference piece 55 on the second pivot 20, so as to achieve the relative rotation between the first pivot 10 and the second pivot 20 and locate the position state of the rotation angle.

[0054] The first elastic sheet 51 and the second elastic sheet 54 can be designed as a disc-shaped structure, and two adjacent elastic sheets are symmetrically arranged. In this way, the arrangement of multiple elastic sheets can have a larger abutment compression space, thereby providing a higher elastic support force.

[0055] Preferably, the second torque group further includes a self-locking wheel 57 operatively sleeved on the second pivot 20 , and the self-locking wheel 57 is provided with a locking protrusion 58 extending along its axial direction;

[0056] A locking groove 59 is provided on the end surface of the first support plate 31 , which can be inserted into and slidably engaged with the locking protrusion 58 .

[0057] In this embodiment, when the rotation angle of the first pivot 10 and the second pivot 20 is 0°, the locking protrusion 58 should be placed in the locking groove 59. In this way, the cover body connected to the second pivot 20 can be prevented from accidentally rotating; when an external force is applied to rotate the second pivot 20, the self-locking wheel 57 will rotate under the linkage action of the second pivot 20. In this way, the locking protrusion 58 will gradually disengage from the locking groove 59 and abut against the end face of the first support plate 31. In this state, the locking protrusion 58 can work together with the second interference plate 55 to locate the angular position of the second pivot 20 relative to the first pivot 10.

[0058] like Figure 19-20 As shown, in order to enhance the self-locking effect, two locking protrusions 58 may be provided on the self-locking wheel 57 , and correspondingly, two locking grooves 59 respectively cooperating with the two locking protrusions 58 are provided on the first support plate 31 .

[0059] Preferably, the first torsion group includes two first interference pieces 52, and a plurality of first elastic pieces 51 are located between the two first interference pieces 52. In this way, the interference effect on the position state of the first pivot 10 can be enhanced.

[0060] like Figure 6As shown, the first torsion group also includes a first separator 511 that is linked and sleeved on the first pivot 10, and the second torsion group also includes a second separator 512 that is linked and sleeved on the second pivot 20. The first separator 511 and the second separator 512 are both located in the area between the second support plate 32 and the angle limit plate 41. When the first nut 53 and the second nut 56 are adjusted to the appropriate position, the transmission assembly, the limit assembly, and the torsion assembly are all in a state of close contact. In this way, the first separator 511 can provide an interference force for the first pivot 10, and the second separator 512 can also provide an interference force for the second pivot 20. In addition, the provision of the first separator 511 and the second separator 512 can also be used to separate the second support plate 32 and the angle limit plate 41 to prevent them from interfering with each other.

[0061] Preferably, both end surfaces of the first interference sheet 52, the second interference sheet 55, the first separator 511, and the second separator 512 are provided with concave first friction grooves 510. The interference effect can be enhanced by increasing the friction force of the rotation of the first interference sheet 52, the second interference sheet 55, the first separator 511, and the second separator 512.

[0062] To further enhance friction, the areas where the second support plate 32 and the angle limiting plate 41 contact the first and second separators 511 and 512 , and the areas where the first support plate 31 contact the first interference plate 52 are all provided with concave second friction grooves 513 .

[0063] Preferably, the first pivot 10 and the second pivot 20 each include a connecting section 11, a separating section 12, a linkage interference section 13 and a threaded section 14 that are connected in sequence;

[0064] The limiting assembly, transmission assembly and torque assembly are sequentially arranged on the linkage interference section 13 and the threaded section 14;

[0065] The connecting section 11 of the first pivot 10 is connected to a first connecting plate 81 , and the connecting section 11 of the second pivot 20 is connected to a second connecting plate 82 .

[0066] In this embodiment, the arrangement of the limiting assembly, the transmission assembly and the torque assembly on the linkage interference section 13 and the threaded section 14 is as follows: Figure 5-6 、 Figure 13-15 As shown, the first nut 53 and the second nut 56 are both in the area of ​​the threaded section 14.

[0067] Example 2

[0068] like Figures 1 to 20 As shown, the vehicle armrest box includes a box body 60, a cover body 70 and a rotating structure, and the rotating structure includes at least one rotating damper as described in any one of the embodiments 1;

[0069] The first connecting plate 81 is connected to the box body 60, and the second connecting plate 82 is connected to the cover body 70;

[0070] The box body 60 is provided with a first paving groove 61 , and the cover body 70 is provided with a second paving groove 71 .

[0071] In this embodiment, the first clearance groove 61 is configured to accommodate the first pivot 10 , and the second clearance groove 71 is configured to accommodate the second pivot 20 .

[0072] In order to improve the synchronization effect of the two rotating dampers, preferably, two rotating dampers are provided, a first synchronization rod 84 is connected between the first pivots 10 of the two rotating dampers, and a second synchronization rod 83 is connected between the second pivots 20 of the two rotating dampers.

[0073] Preferably, two rotation dampers are provided, and the two symmetrically arranged rotation dampers are outer-connected with a shielding shell 90 .

[0074] In order to prevent the shielding housing 90 from being separated from the two rotation dampers, preferably, both ends of the shielding housing 90 have a placement cavity 94 for accommodating the rotation dampers, and the cavity wall of the placement cavity 94 is provided with a connecting pipe 91, and the outer end of the connecting pipe 91 is provided with a threaded blind hole 92;

[0075] The fastening screw 93 is also included, and the fastening screw 93 passes through the angle limiting plate 41 and is threadedly engaged with the threaded blind hole 92, such as Figure 9 、 Figure 16-17 As shown, the angle limiting plate 41 is provided with a through hole 46 for the fastening screw 93 to pass through;

[0076] The first support plate 31 and the second support plate 32 are both provided with a clearance opening 37 for the connection pipe 91 .

[0077] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific embodiments of the present invention are not limited to these descriptions. For those skilled in the art of the present invention, other embodiments that do not depart from the technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary damper, characterized in that: It includes a first pivot (10), a second pivot (20), a transmission assembly, a limit assembly and a torque assembly; The transmission assembly comprises a first support plate (31) and a second support plate (32); both ends of the first support plate (31) and both ends of the second support plate (32) are respectively sleeved on the first pivot (10) and the second pivot (20); a first transmission gear (33), a second transmission gear (34), a third transmission gear (35) and a fourth transmission gear (36) which are meshed in sequence are rotatably provided between the first support plate (31) and the second support plate (32); the first transmission gear (33) is sleeved on the first pivot (10) in a linked manner, and the fourth transmission gear (36) is sleeved on the second pivot (20) in a linked manner; The limiting assembly includes an angle limiting plate (41), the two ends of the angle limiting plate (41) are respectively sleeved on the first pivot (10) and the second pivot (20), and the two ends of the angle limiting plate (41) are both provided with an arc-shaped limiting groove (42). The limiting assembly also includes a first limiting wheel (43) sleeved on the first pivot (10) and a second limiting wheel (44) sleeved on the second pivot (20), and the first limiting wheel (43) and the second limiting wheel (44) are both provided with a limiting protrusion (45) that can slide with the arc-shaped limiting groove (42). The torsion assembly comprises a first torsion group having an interference effect on the rotation of the first pivot (10) and a second torsion group having an interference effect on the rotation of the second pivot (20).

2. The rotation damper according to claim 1, characterized in that: The first torsion group comprises a plurality of first elastic pieces (51) sleeved on the first pivot (10), a first interference piece (52) sleeved on the first pivot (10) in a linked manner, and a first nut (53) threadedly connected to the end of the first pivot (10), wherein the first nut (53) integrally abuts the first elastic piece (51) and the first interference piece (52) against the first support plate (31); The second torsion group includes a plurality of second elastic pieces (54) sleeved on the second pivot (20), a second interference piece (55) sleeved on the second pivot (20) in a linked manner, and a second nut (56) threadedly connected to the end of the second pivot (20), and the second nut (56) integrally abuts the second elastic piece (54) and the second interference piece (55) against the first support plate (31).

3. The rotation damper according to claim 2, characterized in that: The second torque group further includes a self-locking wheel (57) which is linked and sleeved on the second pivot (20), and the self-locking wheel (57) is provided with a locking protrusion (58) extending along its axial direction; A locking groove (59) capable of being inserted into and slidably engaged with the locking protrusion (58) is provided on the end surface of the first supporting plate (31).

4. The rotation damper according to claim 3, characterized in that: The first torsion group further comprises a first separator (511) linked to and sleeved on the first pivot (10), and the second torsion group further comprises a second separator (512) linked to and sleeved on the second pivot (20), and both the first separator (511) and the second separator (512) are located in an area between the second support plate (32) and the angle limiting plate (41).

5. The rotation damper according to claim 4, characterized in that: Both end surfaces of the first interference plate (52), the second interference plate (55), the first separator (511) and the second separator (512) are provided with inwardly concave first friction grooves (510).

6. The rotation damper according to any one of claims 1 to 5, characterized in that: The first pivot (10) and the second pivot (20) both comprise a connecting section (11), a separating section (12), a linked interference section (13) and a threaded section (14) connected in sequence; The limiting assembly, the transmission assembly and the torque assembly are sequentially arranged on the linkage interference section (13) and the threaded section (14); The connecting section (11) of the first pivot (10) is connected to a first connecting plate (81), and the connecting section (11) of the second pivot (20) is connected to a second connecting plate (82).

7. Vehicle armrest box, characterized by: It comprises a box body (60), a cover body (70) and a rotating structure, wherein the rotating structure comprises at least one rotating damper according to claim 6; The first connecting plate (81) is connected to the box body (60), and the second connecting plate (82) is connected to the cover body (70); The box body (60) is provided with a first paving groove (61), and the cover body (70) is provided with a second paving groove (71).

8. The vehicle armrest box according to claim 7, characterized in that: Two rotation dampers are provided, a first synchronization rod (84) is connected between the first pivots (10) of the two rotation dampers, and a second synchronization rod (83) is connected between the second pivots (20) of the two rotation dampers.

9. The vehicle armrest box according to claim 7, characterized in that: Two rotation dampers are provided, and the outer shells of the two symmetrically arranged rotation dampers are connected to a shielding shell (90).

10. The vehicle armrest box according to claim 9, characterized in that: Both ends of the shielding shell (90) have a placement cavity (94) for accommodating the rotation damper, the cavity wall of the placement cavity (94) is provided with a connecting pipe (91), and the outer end of the connecting pipe (91) is provided with a threaded blind hole (92); and also includes a fastening screw (93), which passes through the angle limit plate (41) and is threadedly engaged with the threaded blind hole (92); The first support plate (31) and the second support plate (32) are both provided with a clearance opening (37) for the clearance connection pipe (91).

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