Handrail capable of being opened from two sides

Abstract

The utility model provides a double-side opening handrail, which comprises a base, a support arm, a cover plate, a rotating mechanism and two unlocking mechanisms, the support arm is rotatably arranged on the base, and the rotating mechanism is used for connecting the cover plate with the base and the support arm and can enable the cover plate to rotate around a second rotating axis or a third rotating axis. A passenger of a main driver or a passenger of a co-driver can enable the cover plate to rotate around the second rotating axis or the third rotating axis to expose the opening by operating the unlocking mechanism on the corresponding side, so that the passenger can conveniently take and place articles in the armrest box, and the use convenience of the armrest is improved. The supporting arm is designed to be connected with the cover plate, the first rotation axis of the supporting arm coincides with the third rotation axis, the supporting arm is always connected with the base, and when the cover plate is opened on one side of a main driver, the cover plate and the supporting arm can rotate around the third rotation axis, so that the supporting arm can provide more stable support for the cover plate, and the stability of the cover plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior decoration systems, in particular to a double-side opening armrest. Background Art

[0002] Car armrests were originally designed to provide elbow support for the driver or front passenger. With the continuous optimization of interior components, armrests not only provide elbow support for passengers, but also serve as storage compartments. However, existing armrests can only be opened from the front or back, or from the driver's side. This makes opening the armrest inconvenient for the front passenger, resulting in a poor user experience. Utility Model Content

[0003] In response to the defects in the existing technology, the purpose of the present invention is to provide a double-sided armrest, so that passengers in the main driver's seat or the front passenger seat can open the cover on the corresponding side, thereby making it easier for passengers to take and place items in the armrest box and improving the convenience of use.

[0004] To achieve the above-mentioned object, the present invention provides a double-sided open armrest, comprising a base provided with an opening, wherein the left side of the opening is recorded as a first side, and the right side of the opening is recorded as a second side; a support arm provided on the base, the support arm having a first rotation axis close to the second side, and the support arm being rotatable around the first rotation axis; a cover plate provided on the base; a rotation mechanism provided on the cover plate, having a second rotation axis close to the first side, and a third rotation axis close to the second side, the third rotation axis coinciding with the first rotation axis, the rotation mechanism being used to connect the cover plate to the base and the support arm, and to enable the cover plate to rotate around the second rotation axis or the third rotation axis;

[0005] and two unlocking mechanisms provided on the cover, wherein one of the unlocking mechanisms is close to the first side, and is used to release or restore the connection between the rotating mechanism and the base on the first side; and the other unlocking mechanism is close to the second side, and is used to release or restore the connection between the rotating mechanism and the base and the support arm on the second side;

[0006] When the unlocking mechanism releases the connection between the rotating mechanism and the base on the first side, the cover plate and the support arm can rotate around the third rotation axis; when the unlocking mechanism releases the connection between the rotating mechanism and the base and the support arm on the second side, the cover plate can rotate around the second rotation axis.

[0007] Preferably, the front side of the opening is recorded as the third side, the rear side of the opening is recorded as the fourth side, the base is provided with a first boss and two second bosses, the first boss is close to the fourth side, the first boss is provided with a first socket, the first socket is close to the first side; the two second bosses are close to the third side, the second boss is provided with a second socket, the two sockets are close to the first side and the second side respectively; the support arm is provided with a slot, the slot is close to the first rotation axis;

[0008] The rotating mechanism includes a first rod, a second rod, two third rods, and two first rotating shafts. The first rod is close to the first side and inserted into the first insertion hole, and the second rod is close to the second side and inserted into the slot. The two third rods are close to the first side and the second side, respectively, and the third rods are inserted into the second insertion holes on the corresponding side.

[0009] The two first rotating shafts are respectively close to the first side and the second side, one of the first rotating shafts is respectively connected to the first rod and the third rod on the corresponding side, and the other first rotating shaft is respectively connected to the second rod and the third rod on the corresponding side; the unlocking mechanism is used to drive the corresponding first rotating shaft to rotate, so that the rotation of the first rotating shaft drives the first rod and the third rod on the corresponding side to move closer to or away from each other; or, the rotation of the first rotating shaft drives the second rod and the third rod on the corresponding side to move closer to or away from each other.

[0010] Preferably, a first guide groove and a second guide groove are provided on the outer side wall of the first rotating shaft, and the first guide groove and the second guide groove extend spirally along the axis of the first rotating shaft; one end of the first rod is bent to form a first connecting portion, one end of the second rod is bent to form a second connecting portion, and one end of the third rod is bent to form a third connecting portion, the first connecting portion or the second connecting portion cooperates with the first guide groove, and the third connecting portion cooperates with the second guide groove.

[0011] Preferably, the rotating mechanism further comprises an inserting block, which is slidingly fitted in the cover plate and close to the second side, and the inserting block is connected to the second rod and plug-fitted with the slot.

[0012] Preferably, a sleeve is provided on the support arm, the sleeve is close to the first side, and the first rod is movably provided in the sleeve.

[0013] Preferably, the unlocking mechanism includes: a driving block movably disposed in the cover plate, the driving block being located between the third side and the second boss; a first reset member for resetting the first rotating shaft after rotation; a transmission assembly for transmission-connecting the driving block and the first rotating shaft; a limiting assembly for limiting the driving block after the driving block drives the first rotating shaft to rotate; and an unlocking member disposed on the base, the unlocking member for releasing the limit imposed on the driving block by the limiting assembly.

[0014] When the driving block moves toward the other driving block, the driving block drives the first rotating shaft to rotate through the transmission assembly, so that the first rotating shaft drives the first rod and the third rod on the corresponding side to move closer to each other; or, the first rotating shaft rotates to drive the second rod and the third rod on the corresponding side to move closer to each other; after the first resetting member drives the first rotating shaft to reset, the first rotating shaft drives the driving block to reset through the transmission assembly.

[0015] Preferably, the limit assembly includes a limit arm and a second reset member, the limit arm is rotatably arranged in the cover plate, the limit arm is provided with a limit block and a trigger column, the limit block rests on the driving block, the driving block is provided with a notch that cooperates with the limit block, and when the driving block moves toward the other driving block, the notch can be aligned with the limit block; the second reset member is used to apply elastic force to the limit arm so that the limit block is aligned with the notch and then stuck in the notch; the limit column extends out of the cover plate and cooperates with the unlocking member, and the unlocking member can push the trigger column to make the limit block exit the notch.

[0016] Preferably, the transmission assembly includes a second rotating shaft and a third rotating shaft rotatably arranged in the cover plate, a first gear and a second gear are respectively provided at both ends of the second rotating shaft, and a third gear and a fourth gear are respectively provided at both ends of the third rotating shaft; a rack meshing with the first gear is provided on the driving block, the second gear is meshed with the third gear, and a fifth gear meshing with the fourth gear is provided on the first rotating shaft.

[0017] Preferably, the unlocking mechanism further includes a button and a third reset member, the button is movably provided on the cover plate and extends out of the first side or the second side, and the third reset member abuts against the button and the driving block respectively.

[0018] Beneficial effects of the utility model:

[0019] The utility model discloses a double-sided opening armrest, which is designed to cooperate with the rotation mechanism by designing two unlocking mechanisms. The passenger in the main driver's seat or the co-driver's seat can operate the unlocking mechanism on the corresponding side to rotate the cover plate around the second rotation axis or the third rotation axis to expose the opening, thereby making it easier for the passenger to take and put items in the armrest box, thereby improving the convenience of using the armrest. Since the main driver's side opens the cover plate more often, a support arm is designed to connect the cover plate. The first rotation axis of the support arm coincides with the third rotation axis, and the support arm is always connected to the base. When the main driver's side opens the cover plate, the cover plate and the support arm will rotate around the third rotation axis. In this way, the support arm can provide more stable support for the cover plate, thereby improving the stability of the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0021] Figure 1 A schematic structural diagram of a double-sided open armrest provided in one embodiment of the present utility model;

[0022] Figure 2 Schematic diagram of the structure inside the cover;

[0023] Figure 3 It is a structural diagram of the cooperation between the support arm and the base;

[0024] Figure 4 is a structural diagram of the base;

[0025] Figure 5 This is a structural diagram of the base from another perspective;

[0026] Figure 6 Schematic diagram of the structure of the bottom of the cover;

[0027] Figure 7 is a partial schematic diagram of the first groove;

[0028] Figure 8 It is a structural diagram of the cooperation between the rotating mechanism and the two unlocking mechanisms;

[0029] Figure 9 It is a partial schematic diagram of the limit assembly and the transmission assembly;

[0030] Figure 10 is a partial schematic diagram of the first rotating shaft cooperating with the first rod and the second rod respectively;

[0031] Figure 11It is a partial schematic diagram of the cooperation between the support arm and the insert block;

[0032] Figure 12 It is a structural diagram of the cooperation between the limiting arm and the driving block;

[0033] Figure 13 It is a schematic diagram of the structure of the button, limit arm and drive block;

[0034] Reference numerals:

[0035] 100, base; 101, opening; 102, first side; 103, second side; 104, third side; 105, fourth side; 106, first boss; 107, second boss; 108, first insertion hole; 109, second insertion hole; 200, support arm; 201, slot; 202, sleeve; 203, mounting base; 204, fourth return member; 300, cover; 301, first groove; 302, second groove; 400, rotating mechanism; 401, first rod; 402, second rod; 403, third rod; 404, first rotating shaft; 405, first guide groove; 406, second guide groove; 407, first connecting portion; 408, third connecting portion; 409, insert block; 500, unlocking mechanism; 501, drive block; 502, first reset member; 503, limit arm; 504, second reset member; 505, limit block; 506, trigger column; 507, notch; 508, unlocking member; 509, second rotating shaft; 510, third rotating shaft; 511, first gear; 512, second gear; 513, third gear; 514, fourth gear; 515, rack; 516, fifth gear; 517, button; 518, third reset member. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0037] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0040] In this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] like Figure 1-13As shown, in one embodiment of the present invention, a double-sided armrest is provided, comprising a base 100, a support arm 200, a cover plate 300, a rotation mechanism 400, and two unlocking mechanisms 500. The base 100 is mounted on a passenger instrument panel (not shown in the figures) and defines an opening 101. The left side of the opening 101 is designated as a first side 102 (i.e., the side closest to the driver's seat), and the right side of the opening 101 is designated as a second side 103 (i.e., the side closest to the passenger seat). The support arm 200 is rotatably mounted on the base 100 and has a first rotation axis close to the second side 103, about which the support arm 200 is rotatable. The rotation mechanism 400 has a second rotation axis close to the first side 102 and a third rotation axis close to the second side 103, the third rotation axis coinciding with the first rotation axis. The rotation mechanism 400 is used to connect the cover plate 300 to the base 100 and the support arm 200 and to rotate the cover plate 300 about either the second or third rotation axis.

[0043] One unlocking mechanism 500 is located near the first side 102 and is used to release or restore the connection between the rotating mechanism 400 and the base 100 on the first side 102. The other unlocking mechanism 500 is located near the second side 103 and is used to release or restore the connection between the rotating mechanism 400 and the base 100 and the support arm 200 on the second side 103. When the unlocking mechanism 500 releases the connection between the rotating mechanism 400 and the base 100 on the first side 102, the cover 300 and the support arm 200 can rotate about the third rotation axis and the first rotation axis. When the unlocking mechanism 500 releases the connection between the rotating mechanism 400 and the base 100 and the support arm 200 on the second side 103, the cover 300 can rotate about the second rotation axis.

[0044] The present embodiment discloses a double-sided armrest, which is designed to cooperate with the rotation mechanism 400 by designing two unlocking mechanisms 500 respectively. The passenger in the main driver's seat or the co-driver's seat can rotate the cover plate 300 around the second rotation axis or the third rotation axis to expose the opening 101 by operating the unlocking mechanism 500 on the corresponding side, thereby facilitating the passenger to take and put items in the armrest box, thereby improving the convenience of using the armrest. Since the main driver's side opens the cover plate 300 more times, the support arm 200 is designed to connect the cover plate 300. The first rotation axis of the support arm 200 coincides with the third rotation axis. The support arm 200 is always connected to the base 100. When the main driver's side opens the cover plate 300, the cover plate 300 and the support arm 200 will rotate around the third rotation axis. In this way, the support arm 200 can provide more stable support for the cover plate 300, thereby improving the stability of the cover plate 300.

[0045] In one embodiment, the front side of the opening 101 is designated as the third side 104, and the rear side of the opening 101 is designated as the fourth side 105. A first boss 106 and two second bosses 107 are integrally formed on the base 100. The first boss 106 is located near the fourth side 105. A first insertion hole 108 is provided on the first boss 106, and the first insertion hole 108 is located near the first side 102. The two second bosses 107 are located near the third side 104. A second insertion hole 109 is provided on the second boss 107, and the two insertion holes are located near the first side 102 and the second side 103, respectively. The bottom of the cover 300 is provided with a first groove 301 for accommodating the first boss 106, and a second groove 302 for accommodating the second bosses 107.

[0046] The support arm 200 has a slot 201 located near the first rotation axis. The rotation mechanism 400 includes a first rod 401, a second rod 402, two third rods 403, and two first rotating shafts 404. The first rod 401 is located near the first side 102 and inserted into the first insertion hole 108. The second rod 402 is located near the second side 103 and inserted into the slot 201. The two third rods 403 are located near the first side 102 and the second side 103, respectively, and are inserted into the second insertion holes 109 on the corresponding side.

[0047] Two first rotating shafts 404 are located near the first side 102 and the second side 103, respectively. One of the first rotating shafts 404 is connected to the first rod 401 and the third rod 403 on the corresponding side, while the other first rotating shaft 404 is connected to the second rod 402 and the third rod 403 on the corresponding side. The unlocking mechanism 500 is used to drive the corresponding first rotating shaft 404 to rotate, so that the rotation of the first rotating shaft 404 causes the first rod 401 and the third rod 403 on the corresponding side to move closer to or farther from each other. Alternatively, the rotation of the first rotating shaft 404 causes the second rod 402 and the third rod 403 on the corresponding side to move closer to or farther from each other.

[0048] A first guide groove 405 and a second guide groove 406 are formed on the outer wall of the first rotating shaft 404. The first guide groove 405 and the second guide groove 406 extend spirally along the axis of the first rotating shaft 404. One end of the first rod 401 is bent to form a first connecting portion 407, one end of the second rod 402 is bent to form a second connecting portion, and one end of the third rod 403 is bent to form a third connecting portion 408. The first connecting portion 407 or the second connecting portion cooperates with the first guide groove 405, and the third connecting portion 408 cooperates with the second guide groove 406.

[0049] Take the example of opening the cover 300 on the driver's side:

[0050] When the passenger on the driver's side operates the unlocking mechanism 500 on the first side 102, the unlocking mechanism 500 drives the corresponding first rotating shaft 404 to rotate. As the first rotating shaft 404 rotates, the first guide groove 405 drives the first connecting portion 407 to move the first rod 401 toward the first rotating shaft 404. The second guide groove 406 also simultaneously drives the third connecting portion 408 to move the third rod 403 toward the first rotating shaft 404. This causes the first rod 401 and the corresponding third rod 403 to move closer to each other, causing the first rod 401 to exit the first insertion hole 108 and the third rod 403 to exit the second insertion hole 109. This releases the unlocking mechanism 500 from the connection between the rotating mechanism 400 and the base 100 on the first side 102, allowing the cover 300 and the support arm 200 to rotate about the third rotation axis and the first rotation axis, thereby opening the cover 300 from the driver's side.

[0051] When the driver or passenger closes the cover 300, the unlocking mechanism 500 drives the corresponding first rotating shaft 404 to rotate and reset. The first guide groove 405 drives the first connecting portion 407 to move the first rod 401 away from the first rotating shaft 404. The second guide groove 406 also drives the third connecting portion 408 to move the third rod 403 away from the first rotating shaft 404. This causes the first rod 401 and the third rod 403 on the corresponding side to move away from each other, allowing the first rod 401 to be reinserted into the first receptacle 108 and the third rod 403 to be reinserted into the second receptacle 109. In this way, the unlocking mechanism 500 restores the connection between the rotating mechanism 400 and the base 100 on the first side 102, thereby locking the cover 300. The principle of opening the cover 300 on the passenger side is similar to the above principle and will not be repeated here.

[0052] In one embodiment, the rotation mechanism 400 further includes an insert 409, which slides within the cover 300 and is proximate to the second side 103. The insert 409 is connected to the second rod 402 and engages with the slot 201. A sleeve 202 is provided through the support arm 200, proximate to the first side 102, and the first rod 401 is movably inserted within the sleeve 202. The support arm 200 is mounted on the first boss 106 via a mounting base 203. The mounting base 203 is provided with a pin, on which the support arm 200 rotatably engages. A fourth return member 204 is provided on the pin to ensure the stability of the connection between the support arm 200 and the insert 409.

[0053] The design of the insert 409, which connects the second rod 402 to the support arm 200, enhances the stability of the connection between the second rod 402 and the support arm 200. When the cover 300 is opened from the driver's side (first side 102), the end of the first rod 401 retracts into the sleeve 202. However, at this time, the first rod 401 remains connected to the sleeve 202 on the support arm 200. Therefore, when the cover 300 rotates about the third rotation axis, the cover 300 also drives the support arm 200 to rotate synchronously. When the cover 300 is opened from the passenger side (second side 103), the insert 409 disengages from the support arm 200. Therefore, when the cover 300 rotates about the second rotation axis, the cover 300 does not drive the support arm 200 to rotate.

[0054] In one embodiment, the unlocking mechanism 500 includes a driving block 501, a first reset member 502, a transmission assembly, a limit assembly, and an unlocking member 508. The driving block 501 is movably disposed within the cover 300 and is located between the third side 104 and the second boss 107. The first reset member 502 is used to reset the first rotating shaft 404 after rotation. The transmission assembly is used to connect the driving block 501 to the first rotating shaft 404. The limit assembly is used to limit the driving block 501 after the driving block 501 drives the first rotating shaft 404 to rotate. The unlocking member 508 is disposed on the base 100 and is used to release the limit assembly from restricting the driving block 501.

[0055] The limiting assembly includes a limiting arm 503 and a second reset member 504. The limiting arm 503 is rotatably mounted within the cover plate 300 and is equipped with a limiting block 505 and a trigger post 506. The limiting block 505 rests on the driving block 501, which is provided with a notch 507 that mates with the limiting block 505. When a driving block 501 moves toward another driving block 501, the notch 507 aligns with the limiting block 505. The second reset member 504 is used to apply a spring force to the limiting arm 503, causing the limiting block 505 to align with the notch 507 and then snap into place. The limiting post extends outside the cover plate 300 and mates with an unlocking member 508, which pushes against the trigger post 506 to allow the limiting block 505 to exit the notch 507. The unlocking mechanism 500 further includes a button 517 and a third reset member 518 . The button 517 is movably disposed on the cover 300 and extends out of the first side 102 or the second side 103 . The third reset member 518 abuts against the button 517 and the driving block 501 , respectively.

[0056] The transmission assembly includes a second rotating shaft 509 and a third rotating shaft 510 rotatably mounted within the cover plate 300. A first gear 511 and a second gear 512 are respectively provided at both ends of the second rotating shaft 509, while a third gear 513 and a fourth gear 514 are respectively provided at both ends of the third rotating shaft 510. The driving block 501 is provided with a rack 515 that meshes with the first gear 511. The second gear 512 meshes with the third gear 513. A fifth gear 516 that meshes with the fourth gear 514 is provided on the first rotating shaft 404.

[0057] Let's take the example of opening the cover 300 on the driver's side:

[0058] When the passenger on the driver's side presses the button 517, the button 517 will push the driving block 501 to move toward the other driving block 501, and the rack 515 on the driving block 501 will engage with the first gear 511 of the second rotating shaft 509 for transmission, and the second gear 512 of the second rotating shaft 509 will engage with the third gear 513 of the third rotating shaft 510 for transmission, and the fourth gear 514 of the third rotating shaft 510 will engage with the fifth gear 516 of the first rotating shaft 404 for transmission. In this way, the first rotating shaft 404 is driven to rotate. At this time, the first reset member 502 mounted on the first rotating shaft 404 will continue to apply elastic force to the first rotating shaft 404. After the first rotating shaft 404 rotates, the first rod 401 and the third rod 403 on the corresponding side will move closer to each other, so that the first rod 401 will exit the first socket 108, and the third rod 403 will exit the second socket 109. In this way, the unlocking mechanism 500 releases the connection between the rotating mechanism 400 and the base 100 on the first side 102, and the cover 300 and the support arm 200 can rotate around the third rotation axis and the first rotation axis, so that the cover 300 is opened from the main driver's side.

[0059] During the movement of the driving block 501, when the limit block 505 is aligned with the notch 507, the second reset member 504 will drive the limit arm 503 to rotate, so that the limit block 505 is stuck in the notch 507. In this way, the limit block 505 will lock the driving block 501, making the driving block 501 unable to move.

[0060] When the driver or passenger closes the cover 300, the trigger post 506 abuts the unlocking member 508 on the base 100, which lifts the trigger post 506, allowing the stopper 505 to disengage from the notch 507. The first return member 502 drives the first rotating shaft 404 to rotate, which moves the first rod 401 and the corresponding third rod 403 away from each other, allowing the first rod 401 to reinsert into the first receptacle 108 and the third rod 403 to reinsert into the second receptacle 109. Simultaneously, the first rotating shaft 404 also drives the third rotating shaft 510, the second rotating shaft 509, and the drive block 501 to reset.

[0061] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A double-sided armrest, characterized in that: include: The base (100) is provided with an opening (101), the left side of the opening (101) is recorded as a first side (102), and the right side of the opening (101) is recorded as a second side (103); a support arm (200) disposed on the base (100), the support arm (200) having a first rotation axis close to the second side (103), and the support arm (200) being rotatable around the first rotation axis; a cover plate (300) provided on the base (100); A rotating mechanism (400) provided on the cover plate (300) has a second rotating axis close to the first side (102) and a third rotating axis close to the second side (103), wherein the third rotating axis coincides with the first rotating axis. The rotating mechanism (400) is used to connect the cover plate (300) to the base (100) and the support arm (200), and can rotate the cover plate (300) around the second rotating axis or the third rotating axis. as well as Two unlocking mechanisms (500) are provided on the cover plate (300), wherein one of the unlocking mechanisms (500) is close to the first side (102) and is used to release or restore the connection state between the rotating mechanism (400) and the base (100) on the first side (102); and the other unlocking mechanism (500) is close to the second side (103) and is used to release or restore the connection state between the rotating mechanism (400) and the base (100) and the support arm (200) on the second side (103); When the unlocking mechanism (500) releases the connection between the rotating mechanism (400) and the base (100) on the first side (102), the cover plate (300) and the support arm (200) can rotate around the third rotation axis; when the unlocking mechanism (500) releases the connection between the rotating mechanism (400) and the base (100) and the support arm (200) on the second side (103), the cover plate (300) can rotate around the second rotation axis.

2. The double-sided opening armrest according to claim 1, characterized in that: The front side of the opening (101) is recorded as the third side (104), and the rear side of the opening (101) is recorded as the fourth side (105). The base (100) is provided with a first boss (106) and two second bosses (107), the first boss (106) is close to the fourth side (105), the first boss (106) is provided with a first plug hole (108), and the first plug hole (108) is close to the first side (102); the two second bosses (107) are close to the third side (104), the second boss (107) is provided with a second plug hole (109), and the two plug holes are respectively close to the first side (102) and the second side (103); the support arm (200) is provided with a slot (201), and the slot (201) is close to the first rotation axis; The rotating mechanism (400) comprises a first rod (401), a second rod (402), two third rods (403) and two first rotating shafts (404), wherein the first rod (401) is close to the first side (102) and inserted into the first insertion hole (108), and the second rod (402) is close to the second side (103) and inserted into the slot (201); the two third rods (403) are respectively close to the first side (102) and the second side (103), and the third rods (403) are inserted into the second insertion holes (109) on the corresponding side; Two first rotating shafts (404) are respectively close to the first side (102) and the second side (103), one of the first rotating shafts (404) is respectively connected to the first rod (401) and the third rod (403) on the corresponding side, and the other first rotating shaft (404) is respectively connected to the second rod (402) and the third rod (403) on the corresponding side; The unlocking mechanism (500) is used to drive the corresponding first rotating shaft (404) to rotate, so that the first rotating shaft (404) rotates to drive the first rod (401) and the third rod (403) on the corresponding side to move closer to or away from each other; Alternatively, the first rotating shaft (404) is rotated to drive the second rod (402) and the third rod (403) on the corresponding side to move closer to or farther away from each other.

3. The double-sided opening armrest according to claim 2, characterized in that: A first guide groove (405) and a second guide groove (406) are provided on the outer side wall of the first rotating shaft (404), and the first guide groove (405) and the second guide groove (406) extend spirally along the axis of the first rotating shaft (404); One end of the first rod (401) is bent to form a first connecting portion (407), one end of the second rod (402) is bent to form a second connecting portion, and one end of the third rod (403) is bent to form a third connecting portion (408). The first connecting portion (407) or the second connecting portion cooperates with the first guide groove (405), and the third connecting portion (408) cooperates with the second guide groove (406).

4. The double-sided opening armrest according to claim 2, characterized in that: The rotating mechanism (400) further includes an insert block (409), which is slidably fitted in the cover plate (300) and close to the second side (103), and the insert block (409) is connected to the second rod (402) and is plug-fitted into the slot (201).

5. The double-sided opening armrest according to claim 2, characterized in that: The support arm (200) is provided with a sleeve (202), the sleeve (202) is close to the first side (102), and the first rod (401) is movably provided in the sleeve (202).

6. The double-sided opening armrest according to claim 2 or 3, characterized in that: The unlocking mechanism (500) comprises: a driving block (501) movably disposed in the cover plate (300), the driving block (501) being located between the third side (104) and the second boss (107); A first restoring member (502) is used to restore the first rotating shaft (404) after rotation; a transmission assembly, which transmission-connects the driving block (501) and the first rotating shaft (404); a limiting assembly, used for limiting the position of the driving block (501) after the driving block (501) drives the first rotating shaft (404) to rotate; and an unlocking member (508), provided on the base (100), the unlocking member (508) being used to release the restriction of the limiting assembly on the driving block (501); When the driving block (501) moves toward the other driving block (501), the driving block (501) drives the first rotating shaft (404) to rotate through the transmission assembly, so that the first rotating shaft (404) drives the first rod (401) and the third rod (403) on the corresponding side to move closer to each other; or, the first rotating shaft (404) drives the second rod (402) and the third rod (403) on the corresponding side to move closer to each other; After the first resetting member (502) drives the first rotating shaft (404) to reset, the first rotating shaft (404) drives the driving block (501) to reset through the transmission assembly.

7. The double-sided opening armrest according to claim 6, characterized in that: The limiting assembly comprises a limiting arm (503) and a second reset member (504); the limiting arm (503) is rotatably arranged in the cover plate (300); a limiting block (505) and a trigger column (506) are provided on the limiting arm (503); the limiting block (505) rests on the driving block (501); the driving block (501) is provided with a notch (507) that matches the limiting block (505); when the driving block (501) moves toward the other driving block (501), the notch (507) can be aligned with the limiting block (505); The second reset member (504) is used to apply elastic force to the limiting arm (503) so that the limiting block (505) is aligned with the notch (507) and then snapped into the notch (507); the limiting column extends out of the cover plate (300) and cooperates with the unlocking member (508), and the unlocking member (508) can push the triggering column (506) so that the limiting block (505) exits the notch (507).

8. The double-sided opening armrest according to claim 6, characterized in that: The transmission assembly comprises a second rotating shaft (509) and a third rotating shaft (510) rotatably disposed in the cover plate (300), wherein the second rotating shaft (509) is provided with a first gear (511) and a second gear (512) at both ends, and the third rotating shaft (510) is provided with a third gear (513) and a fourth gear (514) at both ends; The driving block (501) is provided with a rack (515) meshing with the first gear (511), the second gear (512) is meshing with the third gear (513), and the first rotating shaft (404) is provided with a fifth gear (516) meshing with the fourth gear (514).

9. The double-sided opening armrest according to claim 6, characterized in that: The unlocking mechanism (500) further comprises a button (517) and a third reset member (518); the button (517) is movably arranged on the cover plate (300) and extends out of the first side (102) or the second side (103); and the third reset member (518) abuts against the button (517) and the driving block (501), respectively.

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