Armrest mechanism and machine equipment

Abstract

The utility model provides a handrail mechanism and machine equipment. The armrest mechanism comprises a mounting base, an armrest assembly and a first limiting assembly. The handrail assembly is rotatably connected to the mounting base in a matched mode. The first limiting assembly comprises a damping piece and a one-way rotating piece which are arranged in the rotating axis direction of the handrail assembly, the damping piece is connected with the one-way rotating piece, one of the damping piece and the one-way rotating piece is connected with the installation base, and the other one is connected with the handrail assembly. When the armrest assembly rotates in the opening direction, the one-way rotating piece is in a rotating state, and the damping piece does not generate damping; when the armrest assembly rotates in the pressing direction, the one-way rotating piece is in a self-locking state, and the damping piece generates damping. The handrail assembly is not limited by any mechanical structure in the whole rotating process, when the machine body is subjected to resistance or impact force, the damping piece can provide the force release direction and space, the probability of structural damage of the handrail mechanism is reduced, and the safety and reliability of machine equipment are improved.

Description

Technical Field

[0001] The utility model relates to the field of cleaning technology, in particular to an armrest mechanism and a machine device. Background Art

[0002] In the prior art, most of the armrests of cleaning robots are stored inside the body. When the user needs to drag or push the robot, the armrest is pulled out from inside the cleaning robot for use. However, due to the large mass of the cleaning robot, when the user is using the armrest and the robot encounters a sudden large resistance, the force is easily transmitted to the mechanical structure limit position of the armrest, resulting in structural damage to the armrest. Summary of the Utility Model

[0003] Based on this, in view of the problem that when the existing machine device is in use and encounters a sudden large resistance, the force is easily transmitted to the mechanical structure limit position of the armrest, resulting in structural damage to the armrest, it is necessary to provide an armrest mechanism and a machine device.

[0004] The technical solution is as follows:

[0005] On the one hand, an armrest mechanism is provided, including:

[0006] A mounting seat;

[0007] An armrest assembly rotatably coupled to the mounting seat;

[0008] A first limiting assembly, the first limiting assembly includes a damping member and a one-way rotating member arranged along the rotation axis direction of the armrest assembly, the damping member is connected to the one-way rotating member, and one of the two is connected to the mounting seat and the other is connected to the armrest assembly;

[0009] Wherein, when the armrest assembly rotates in the opening direction, the one-way rotating member is in a rotating state and the damping member does not generate damping; when the armrest assembly rotates in the pressing direction, the one-way rotating member is in a self-locking state and the damping member generates damping.

[0010] The technical solution is further described below:

[0011] In one embodiment, the damping member and the one-way rotating member are arranged at intervals, and the first limiting assembly further includes an adapter located between the damping member and the one-way rotating member, and the adapter is connected to both the damping member and the one-way rotating member.

[0012] In one embodiment, a transmission shaft is provided on one side of the adapter close to the one-way rotating member, and the one-way rotating member is fixedly sleeved on the transmission shaft;

[0013] And / or, on the sides of the damping member and the adapter member close to each other, a driving protrusion and a driving groove are respectively provided, and the driving protrusion is in plug-in fit with the driving groove.

[0014] In one embodiment, the armrest assembly includes a rotating shaft, and a first mounting groove is provided at one end of the rotating shaft. The mounting base includes a first blocking member, and the first blocking member is located at the end of the rotating shaft where the first mounting groove is provided. A second mounting groove is provided on the side of the first blocking member close to the rotating shaft, and the second mounting groove communicates with the first mounting groove to form a mounting cavity for mounting the first limiting assembly.

[0015] In one embodiment, the one-way rotating member is installed in the second mounting groove and is connected to the first blocking member. A mounting shaft is provided on the bottom wall of the first mounting groove, the damping member is sleeved on the mounting shaft, and both sides of the damping member along the rotation axis direction of the armrest assembly are connected to the rotating shaft and the one-way rotating member respectively, and are configured to relatively rotate when the rotating shaft rotates along the pressing direction to generate damping.

[0016] In one embodiment, the mounting base further includes a second blocking member, and the second blocking member is located at the end of the rotating shaft away from the first mounting groove. The second blocking member is fixedly connected to the first blocking member and is in corresponding limiting fit with both ends of the rotating shaft respectively.

[0017] In one embodiment, an annular protrusion and an annular groove are respectively provided on the sides of the second blocking member and the rotating shaft close to each other. The annular protrusion is in plug-in fit with the annular groove and is in rotational fit with the inner wall of the annular groove. The central axis of the annular groove coincides with the rotation axis of the rotating shaft.

[0018] In one embodiment, the armrest assembly includes a rotating shaft, a first armrest group and a second armrest group. The rotating shaft is rotatably arranged on the mounting base and is connected to the first armrest group. The second armrest group is in telescopic fit with the first armrest group, and the second armrest group is provided with a mounting portion for mounting an interaction device.

[0019] In one embodiment, there are two rotating shafts, two first limiting assemblies and two mounting bases. Both of the two rotating shafts are connected to the first armrest group, and the rotation axes of the two rotating shafts coincide. The two first limiting assemblies and the two mounting bases are correspondingly arranged with the two rotating shafts.

[0020] On the other hand, a machine device is provided, including a fuselage and the armrest mechanism as described above, and the armrest mechanism is installed on the fuselage.

[0021] In the armrest mechanism and the machine equipment in the above embodiments, the mounting base is correspondingly mounted on the fuselage, so that the armrest assembly can be rotated open or rotated and pressed relative to the fuselage. Among them, when the user drives the armrest assembly to rotate in the opening direction, the one-way rotating member is in a rotating state, and the entire damping member rotates synchronously with the armrest assembly or remains fixed to the mounting base. At this time, the damping member does not generate damping, and the resistance received by the armrest assembly is so small that it can be easily opened. When the user releases the armrest assembly and the armrest assembly rotates in the pressing direction under its own gravity, the one-way rotating member is in a self-locking state, and the entire one-way rotating member remains fixed to the mounting base or rotates synchronously with the armrest assembly. At this time, relative movement occurs on both sides of the damping member and damping is generated, so that the armrest assembly has the function of free hovering, can adapt to the experience needs of users of different heights, and improves the practicability of the armrest mechanism. In addition, there is no mechanical structure limit during the entire rotation process of the armrest assembly. When the fuselage is subjected to resistance or impact force, the damping member can provide the direction and space for discharging force, reducing the probability of structural damage to the armrest mechanism and improving the safety and reliability of the armrest mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the armrest mechanism of an embodiment.

[0025] Figure 2 is Figure 1 A cross-sectional view of the armrest mechanism of when the second armrest group is in the retracted position.

[0026] Figure 3 is Figure 2 A partial enlarged view of part A in.

[0027] Figure 4 is Figure 1 A cross-sectional view of the armrest mechanism of when the second armrest group is in the fully extended position.

[0028] Figure 5 is Figure 1 A cross-sectional view of the armrest mechanism of when the second armrest group is in the retracted position.

[0029] Figure 6 isFigure 5 A partial enlarged view of part B.

[0030] Figure 7 for Figure 5 A partial enlarged view of part C.

[0031] Figure 8 for Figure 1 A cross-sectional view of the armrest mechanism when the locking assembly is in the fully unlocked position.

[0032] Figure 9 for Figure 1 A cross-sectional view of the armrest mechanism when the locking assembly is in a semi-unlocked position.

[0033] Description of reference numerals:

[0034] 10. armrest mechanism; 100. mounting seat; 110. first stopper; 111. second mounting groove; 112. first supporting portion; 120. second stopper; 121. annular protrusion; 122. second supporting portion; 200. armrest assembly; 210. rotating shaft; 211. first mounting groove; 212. mounting shaft; 213. annular groove; 220. first armrest assembly; 221. armrest outer tube; 2211. free end; 2212. first locking hole; 222. sliding sleeve; 2221. fourth locking hole; 223. first connecting member; 2231. avoidance groove; 224. mounting member; 2241. receiving groove; 2242. mounting hole; 225. second connecting member; 2251 , connecting channel; 2252, the fifth locking hole; 2253, the annular flange; 226, the decorative cover; 230, the second armrest group; 231, the armrest inner tube; 2311, the second locking hole; 2312, the third locking hole; 232, the second limiting assembly; 233, the handle; 2331, the mounting part; 300, the first limiting assembly; 310, the damping member; 311, the transmission protrusion; 320, the one-way rotating member; 330, the adapter; 331, the transmission shaft; 332, the transmission groove; 400, the locking assembly; 411, the first locking member; 4111, the first undercut; 412, the second locking member; 4121, the interference part; 413, the transmission member; 414, the elastic reset member. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In one embodiment, a machine device is provided, which includes a fuselage and an armrest mechanism. The armrest mechanism is installed on the fuselage. In this way, the user can drive the fuselage to move through the armrest mechanism, improving the practicability of the machine device.

[0037] Among them, the armrest mechanism can be installed on the fuselage by means of snap connection, screw connection or other connection methods.

[0038] It should be noted that in this application, the armrest mechanism is taken as an example of being applied to a cleaning robot for detailed description. In other embodiments, the armrest mechanism can also be applied to other similar products or devices.

[0039] Such as Figure 1 、 Figure 2 and Figure 3 As shown, in one embodiment, an armrest mechanism 10 is provided, which includes a mounting base 100, an armrest assembly 200 and a first limiting assembly 300. Among them, the armrest assembly 200 is rotatably coupled to the mounting base 100. The first limiting assembly 300 includes a damping member 310 and a one-way rotating member 320 arranged along the rotation axis direction of the armrest assembly 200. The damping member 310 is connected to the one-way rotating member 320, and one of them is connected to the mounting base 100, and the other is connected to the armrest assembly 200. When the armrest assembly 200 rotates in the opening direction, the one-way rotating member 320 is in a rotating state, and the damping member 310 does not generate damping; when the armrest assembly 200 rotates in the pressing direction (i.e., the direction opposite to the opening direction), the one-way rotating member 320 is in a self-locking state, and the damping member 310 generates damping.

[0040] In the armrest mechanism 10 in the above embodiments, during use, the mounting base 100 is correspondingly mounted on the fuselage, so that the armrest assembly 200 can rotate and open or rotate and press against the fuselage. Among them, when the user drives the armrest assembly 200 to rotate in the opening direction, the one-way rotating member 320 is in a rotating state, and the entire damping member 310 rotates synchronously with the armrest assembly 200 or remains fixed to the mounting base 100. At this time, the damping member 310 does not generate damping, and the resistance received by the armrest assembly 200 is small and can be easily opened. When the user releases the armrest assembly 200 and the armrest assembly 200 rotates in the pressing direction under its own gravity, the one-way rotating member 320 is in a self-locking state, and the entire one-way rotating member 320 remains fixed to the mounting base 100 or rotates synchronously with the armrest assembly 200. At this time, relative movement occurs on both sides of the damping member 310 and damping is generated, so that the armrest assembly 200 has the function of free hovering, can adapt to the experience needs of users of different heights, and improves the practicability of the armrest mechanism 10. In addition, there is no mechanical structure limit during the entire rotation process of the armrest assembly 200. When the fuselage is subjected to resistance or impact, the damping member 310 can provide the direction and space for relieving force, reducing the probability of structural damage to the armrest mechanism 10 and improving the safety and reliability of the armrest mechanism 10.

[0041] Among them, the armrest assembly 200 can be any armrest in the prior art. The damping member 310 can be set as a damper, a damping spring or other damping structures. The one-way rotating member 320 can be set as a one-way bearing, a ratchet and pawl structure, or other one-way rotating structures.

[0042] As Figure 2 shown, further, the damping member 310 and the one-way rotating member 320 are arranged at intervals, and the first limiting assembly 300 further includes an adapter 330 located between the damping member 310 and the one-way rotating member 320. The adapter 330 is connected to both the damping member 310 and the one-way rotating member 320. In this way, the damping member 310 can be connected to the one-way rotating member 320 as a whole through the adapter 330, so as to transmit the damping generated by the damping member 310 to the one-way rotating member 320 and improve the reliability of the armrest mechanism 10.

[0043] Among them, the adapter 330 can be set as an adapter base, an adapter bracket or other adapter structures. The rotation axes of the armrest assembly 200, the damper 310, the adapter 330, and the one-way rotating member 320 are all the same straight line. The adapter 330 can be connected to the damper 310 by snap connection, plug connection, screw connection or other means. The adapter 330 can be connected to the one-way rotating member 320 by snap connection, plug connection, screw connection or other means. The damper 310 can be connected to one of the armrest assembly 200 and the mounting base 100 by snap connection, plug connection, screw connection or other means. The one-way rotating member 320 can be connected to the other of the armrest assembly 200 and the mounting base 100 by snap connection, plug connection, screw connection or other means.

[0044] Specifically in this embodiment, the damper 310 is connected to the armrest assembly 200, and the one-way rotating member 320 is connected to the mounting base 100. The one-way rotating member 320 is set as a one-way bearing. Thus, when the user drives the armrest assembly 200 to rotate in the opening direction, the armrest assembly 200 drives the damper 310, the adapter 330 and the inner ring of the one-way bearing to rotate synchronously. The outer ring of the one-way bearing is fixed to the mounting base 100. At this time, the one-way bearing is in a rotating state, and the damper 310 does not generate damping, and the resistance received by the armrest assembly 200 is small and can be easily opened. When the user releases the armrest assembly 200 and the armrest assembly 200 rotates in the pressing direction under the action of its own gravity, since the one-way bearing can only rotate in one direction, the side of the damper 310 close to the adapter 330, the adapter 330, the entire one-way bearing and the mounting base 100 remain fixed, and the armrest assembly 200 drives the side of the damper 310 away from the adapter 330 to rotate. At this time, the one-way bearing is in a self-locking state, and relative movement occurs on both sides of the damper 310 and damping is generated, so that the armrest assembly 200 has the function of free hovering, can adapt to the experience needs of users of different heights, and improves the practicability of the armrest mechanism 10.

[0045] It should be noted that the one-way bearing being in a rotating state means the state when the inner ring of the one-way bearing can rotate relative to the outer ring. The one-way bearing being in a self-locking state means the state when the inner ring and the outer ring of the one-way bearing cannot rotate relative to each other.

[0046] In other embodiments, the damper 310 can also be connected to the mounting base 100, and the one-way rotating member 320 is correspondingly connected to the armrest assembly 200. The working process is similar to the above, and will not be elaborated here in detail.

[0047] As Figure 3 shown, optionally, a transmission shaft 331 is provided on the side of the adapter 330 close to the one-way rotating member 320, and the one-way rotating member 320 is fixedly sleeved on the transmission shaft 331.

[0048] Specifically in this embodiment, the one-way rotating member 320 is provided as a one-way bearing. The outer ring of the one-way bearing is limited and fixed on the mounting seat 100 through a keyway. The inner ring of the one-way bearing is fixed on the transmission shaft 331 of the adapter 330 through a keyway.

[0049] As Figure 3 shown, optionally, on the sides of the damper 310 and the adapter 330 close to each other, there are respectively provided a transmission protrusion 311 and a transmission groove 332, and the transmission protrusion 311 and the transmission groove 332 are in plug-in fit.

[0050] Specifically in this embodiment, the transmission protrusion 311 is arranged on the side of the damper 310 close to the adapter 330, and the transmission groove 332 is arranged on the side of the adapter 330 close to the damper 310. The outer contour shape of the transmission protrusion 311 is adapted to the inner contour shape of the transmission groove 332. The cross-section of the transmission protrusion 311 along the direction perpendicular to its own axis is non-circular. For example, the cross-section of the transmission protrusion 311 along the direction perpendicular to its own axis is a regular polygon. In other embodiments, the transmission protrusion 311 can also be arranged on the side of the adapter 330 close to the damper 310, and the transmission groove 332 is correspondingly arranged on the side of the damper 310 close to the adapter 330.

[0051] As Figure 2 and Figure 3 shown, in one embodiment, the armrest assembly 200 includes a rotating shaft 210, and a first mounting groove 211 is provided at one end of the rotating shaft 210. The mounting seat 100 includes a first stopper 110. The first stopper 110 is located at the end of the rotating shaft 210 where the first mounting groove 211 is provided. A second mounting groove 111 is provided on the side of the first stopper 110 close to the rotating shaft 210. The second mounting groove 111 and the first mounting groove 211 communicate to form a mounting cavity for mounting the first limiting assembly 300. In this way, the first limiting assembly 300 can be hidden inside the armrest mechanism 10, ensuring that the first limiting assembly 300 will not interfere with external objects and improving the reliability of the armrest mechanism 10.

[0052] As Figure 3 shown, optionally, the one-way rotating member 320 is installed in the second mounting groove 111 and is connected to the first stopper 110. A mounting shaft 212 is provided on the bottom wall of the first mounting groove 211. The damper 310 is sleeved on the mounting shaft 212; both sides of the damper 310 along the rotation axis direction of the armrest assembly 200 are respectively connected to the rotating shaft 210 and the one-way rotating member 320, and are configured to rotate relatively to generate damping when the rotating shaft 210 rotates in the pressing direction.

[0053] Specifically in this embodiment, the damping member 310 includes a first group of metal sheets and a second group of metal sheets, and damping is generated when the first group of metal sheets and the second group of metal sheets perform relative rotational movement. The first group of metal sheets includes two metal sheets, and the second group of metal sheets includes one metal sheet. The first group of metal sheets is fixed to the rotating shaft 210 by screws. The second group of metal sheets is correspondingly connected to the adapter 330.

[0054] As Figure 2 and Figure 3 shown, in one embodiment, the mounting seat 100 further includes a second stopper 120. The second stopper 120 is located at one end of the rotating shaft 210 away from the first mounting groove 211. The second stopper 120 is fixedly connected to the first stopper 110 and is respectively in limit fit with the two ends of the rotating shaft 210. In this way, the first stopper 110 and the second stopper 120 can cooperate to axially limit the armrest assembly 200, ensuring that the armrest assembly 200 does not move along its own rotation axis direction on the fuselage, and improving the reliability of the armrest mechanism 10.

[0055] As Figure 3 and Figure 4 shown, optionally, annular protrusions 121 and annular grooves 213 are respectively provided on the sides of the second stopper 120 and the rotating shaft 210 close to each other. The annular protrusions 121 are in plug-in fit with the annular grooves 213 and are rotatably fitted with the inner walls of the annular grooves 213. The central axis of the annular grooves 213 coincides with the rotation axis of the rotating shaft 210. In this way, the annular protrusions 121 and the annular grooves 213 can cooperate to limit and guide the rotating shaft 210, ensuring that the armrest assembly 200 does not jump during rotation and improving the safety of the armrest mechanism 10.

[0056] As Figure 3 shown, specifically in this embodiment, both the first stopper 110 and the second stopper 120 are of plate-like structures. The bottom of the first stopper 110 is provided with a first supporting portion 112 extending towards the second stopper 120, and the bottom of the second stopper 120 is provided with a second supporting portion 122 extending towards the first stopper 110; the first supporting portion 112 and the second supporting portion 122 can be fixed into one body by screwing, clamping, plugging or other means and can cooperate to support the rotating shaft 210. The contour shapes of the sides of the first supporting portion 112 close to the rotating shaft 210 and the sides of the second supporting portion 122 close to the rotating shaft 210 are both adapted to the contour shape of the outer side wall of the rotating shaft 210.

[0057] Please refer to again Figure 1, in one embodiment, the armrest assembly 200 includes a rotating shaft 210, a first armrest group 220, and a second armrest group 230. The rotating shaft 210 is rotatably arranged on the mounting base 100 and is connected to the first armrest group 220; the second armrest group 230 is telescopically engaged with the first armrest group 220. Further, the second armrest group 230 is provided with a mounting portion 2331, and the mounting portion 2331 is used for mounting an interactive device or a peripheral device. In this way, the interactive device or the peripheral device can be mounted on the mounting portion 2331 and hover at different heights through the armrest mechanism 10 to adapt to users of different heights, improving the practicability of the armrest mechanism 10.

[0058] Specifically in this embodiment, the mounting portion 2331 can be set as a mounting bracket. The interactive device can be an interactive screen; the peripheral device can be a mobile terminal such as a tablet computer or a mobile phone.

[0059] Among them, the quantities of the rotating shaft 210, the first limiting component 300, and the mounting base 100 can all be flexibly adjusted according to actual usage needs.

[0060] Such as Figure 2 and Figure 4 As shown, optionally, there are two rotating shafts 210, two first limiting components 300, and two mounting bases 100. The two rotating shafts 210 are both connected to the first armrest group 220, and the rotation axes of the two rotating shafts 210 coincide. The two first limiting components 300 and the two mounting bases 100 are respectively arranged corresponding to the two rotating shafts 210. In this way, by the quantities of the rotating shaft 210, the first limiting component 300, and the mounting base 100, while ensuring the rotational stability of the armrest assembly 200, it also ensures that the armrest assembly 200 can stably and reliably hover at a specified height, improving the reliability of the armrest mechanism 10.

[0061] Such as Figure 1 and Figure 5 , in one embodiment, another armrest mechanism 10 is provided. The armrest mechanism 10 is installed on the body of the machine device and includes an armrest assembly 200 and a locking assembly 400. The armrest assembly 200 includes a first armrest group 220 and a second armrest group 230. The first armrest group 220 is rotatably installed on the body and has a storage position; the second armrest group 230 is telescopically installed on the first armrest group 220 and has a retracted position. The locking assembly 400 is movably installed on the first armrest group 220 and has a locking position and a full unlocking position.

[0062] When the first armrest group 220 is in the storage position and the second armrest group 230 is in the retracted position, the locking assembly 400 can switch between the locking position and the full unlocking position, so that the first armrest group 220 and the second armrest group 230, as well as the first armrest group 220 and the body, are simultaneously locked or simultaneously unlocked.

[0063] Specifically in this embodiment, the locking assembly 400 further has a semi-unlocked position; the second armrest group 230 further has a fully extended position. When the locking assembly 400 is in the semi-unlocked position, the second armrest group 230 is in the fully extended position. At this time, the locking fit is maintained between the first armrest group 220 and the second armrest group 230, while the locking fit between the first armrest group 220 and the fuselage is released. When the second armrest group 230 is in a position between the retracted position and the fully extended position (i.e., the transitional state when the second armrest group 230 extends from the retracted position to the fully extended position), the locking assembly 400 is in the fully unlocked position, and the locking fits between the first armrest group 220 and the second armrest group 230, and between the first armrest group 220 and the fuselage are both released.

[0064] For the armrest mechanism 10 in the above embodiment, during use, the locking assembly 400 is used to control the simultaneous locking fit or the simultaneous release of the locking fit between the first armrest group 220 and the second armrest group 230, and between the first armrest group 220 and the fuselage. It is ensured that when the locking assembly 400 is correspondingly moved out of the locking position, the second armrest group 230 can extend from the retracted position to release the locking fit between the first armrest group 220 and the fuselage; after the second armrest group 230 extends to the fully extended position, the locking assembly 400 cannot automatically reset to the locking position, and the locking fit between the armrest assembly 200 and the fuselage is released and maintained, so as to ensure that the armrest assembly 200 will not form a labor-saving lever structure to lift the fuselage during the extended state, thereby improving the reliability and service life of the machine equipment.

[0065] Among them, the locking assembly 400 can be integrally movably installed on the first armrest group 220, or partially movably installed on the first armrest group 220. Specifically in this embodiment, the first armrest group 220 is rotatably installed on the mounting seat 100 through the rotating shaft 210, and the mounting seat 100 is installed on the fuselage. In other embodiments, the first armrest group 220 can also be directly rotatably installed on the fuselage.

[0066] Such as Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, optionally, the first armrest group 220 includes an outer armrest tube 221. One end of the outer armrest tube 221 is rotatably mounted on the fuselage, and the other end is set as a free end 2211. First locking holes 2212 are provided on both sides of the free end 2211. The second armrest group 230 includes an inner armrest tube 231 that telescopically cooperates with the outer armrest tube 221. Second locking holes 2311 corresponding to the two first locking holes 2212 are respectively provided on both sides of one end of the inner armrest tube 231, and a third locking hole 2312 corresponding to the first locking hole 2212 is provided on the inner side of the other end. When the second armrest group 230 is in the retracted position, the third locking hole 2312 communicates with one of the two first locking holes 2212, and the inner armrest tube 231 blocks the other of the two first locking holes 2212; when the second armrest group 230 is in the fully extended position, the two first locking holes 2212 communicate with the two second locking holes 2311 correspondingly.

[0067] As Figure 5 , Figure 6 and Figure 7 shown, when the locking assembly 400 is in the locked position, the first armrest group 220 is in the stored position, and the second armrest group 230 is in the retracted position. The locking assembly 400 can pass through the first locking hole 2212 corresponding to the third locking hole 2312, and the third locking hole 2312, and extend into the inner armrest tube 231, so that the first armrest group 220 and the second armrest group 230 are locked and cooperated. When the locking assembly 400 is in the fully unlocked position, when the first armrest group 220 is in the stored position and the second armrest group 230 is in the retracted position, the locking assembly 400 can also correspondingly move out of the third locking hole 2312 and the first locking hole 2212, so that the locking cooperation between the first armrest group 220 and the second armrest group 230 is released.

[0068] As Figure 9 shown, when the locking assembly 400 is in the half-unlocked position, the second armrest group 230 is in the fully extended position. Please combine Figure 5 and Figure 6 to understand that at this time, the locking assembly 400 passes through the two second locking holes 2311 and the two first locking holes 2212, so that the first armrest group 220 and the second armrest group 230 are locked and cooperated, while the locking cooperation between the first armrest group 220 and the fuselage is released, that is, the so-called "half-unlock" is realized. In this way, when the second armrest group 230 is in the fully extended position, both sides of the inner armrest tube 231 and both sides of the outer armrest tube 221 can be stressed, so that the stress area and stress balance of the locking assembly 400 are both increased, improving the overall strength and external force-bearing performance of the armrest mechanism 10.

[0069] Furthermore, the second armrest group 230 can be configured with multiple extension positions, that is, two radially arranged second locking holes 2311 are a group, and the armrest inner tube 231 has multiple groups of second locking holes 2311, and each group of second locking holes 2311 is arranged at intervals along the axial direction of the armrest inner tube 231.

[0070] like Figure 8 As shown, when the locking assembly 400 is in the fully unlocked position, the second armrest group 230 is in a transition state between the retracted position and the fully extended position. Figure 6 It is understood that at this time, the locking assembly 400 extends into one of the two first locking holes 2212 and cooperates with the outer wall of the armrest inner tube 231 to limit the locking cooperation between the first armrest group 220 and the second armrest group 230, and between the first armrest group 220 and the fuselage are released.

[0071] like Figure 6 As shown, in one embodiment, the first armrest assembly 220 further includes a sliding sleeve 222, which is mounted on the free end 2211 and slidably cooperates with the armrest inner tube 231, and the two sides of the sliding sleeve 222 are respectively provided with fourth locking holes 2221 correspondingly connected to the two first locking holes 2212. In this way, the sliding sleeve 222 can guide the armrest inner tube 231, and the inner wall of the fourth locking hole 2221 on the sliding sleeve 222 can also contact the locking assembly 400 when the second armrest assembly 230 is in the extended state, so that the force bearing area of the locking assembly 400 is increased, and the stability and reliability of the armrest mechanism 10 are improved.

[0072] like Figure 6 and Figure 9 As shown, optionally, the second armrest assembly 230 further includes a second limiting assembly 232, which is installed at one end of the armrest inner tube 231 extending into the armrest outer tube 221. The second limiting assembly 232 is configured to cooperate with the sliding sleeve 222 when the second armrest assembly 230 is in a fully extended position. In this way, the armrest outer tube 221 limits the armrest inner tube 231 through the sliding sleeve 222 and the second limiting assembly 232, ensuring that the armrest inner tube 231 will not separate from the armrest outer tube 221, thereby improving the reliability of the armrest mechanism 10.

[0073] The second limiting component 232 can be configured as a limiting block, a limiting frame, a limiting buckle or other limiting structures. The second limiting component 232 can be installed on one end of the handrail inner tube 231 extending into the handrail outer tube 221 by snap connection, plug connection, screw connection or other connection methods.

[0074] like Figure 5As shown, in one embodiment, the number of the outer armrest tubes 221 and the inner armrest tubes 231 is two each. The two outer armrest tubes 221 are arranged at intervals and are telescopically fitted with the two inner armrest tubes 231 correspondingly. The first armrest group 220 further includes a first connecting member 223. The two ends of the first connecting member 223 are correspondingly connected to the two free ends 2211, and the locking assembly 400 is installed on the first connecting member 223. In this way, the first connecting member 223 can increase the strength of the armrest assembly 200 while providing an installation base for the locking assembly 400, improving the reliability and practicality of the armrest assembly 200.

[0075] As Figure 5 , Figure 8 and Figure 9 shown, further, the number of the locking assemblies 400 is two. The two locking assemblies 400 are respectively movably installed at the two ends of the first connecting member 223 and are correspondingly arranged with the two free ends 2211. When both of the two locking assemblies 400 are in the locked position, the distance between the two locking assemblies 400 is a first length (such as the length shown as D in Figure 5 ); when both of the two locking assemblies 400 are in the fully unlocked position, the distance between the two locking assemblies 400 is a second length (such as the length shown as E in Figure 8 ); when both of the two locking assemblies 400 are in the semi-unlocked position, the distance between the two locking assemblies 400 is a third length (such as the length shown as F in Figure 9 ). Among them, the third length is greater than the first length, and the first length is greater than the second length. In this way, by increasing the number of the locking assemblies 400, the connection strength between the outer armrest tube 221 and the inner armrest tube 231 is increased, improving the reliability of the armrest mechanism 10.

[0076] In other embodiments, the locking assembly 400 can also be one, and one locking assembly 400 is correspondingly installed at any one of the two ends of the connecting member.

[0077] As Figure 5 and Figure 6As shown, optionally, the first connecting member 223 is provided as a connecting pipe, and avoidance grooves 2231 extending along the axial direction of the connecting pipe are provided on the outer side walls at both ends of the connecting pipe. The two ends of the connecting pipe are correspondingly communicated with the two free ends 2211 through the first locking holes 2212. Both of the two locking assemblies 400 include a first locking member 411, a second locking member 412, and a transmission member 413. The two first locking members 411 are respectively slidably sleeved on the two ends of the connecting pipe; the two second locking members 412 are respectively movably installed inside the two ends of the connecting pipe and are correspondingly arranged with the first locking holes 2212 on the two free ends 2211; the two transmission members 413 respectively penetrate through the two avoidance grooves 2231 and transmit and connect the two first locking members 411 and the two second locking members 412. In this way, the connecting pipe can also play a guiding role to ensure that the first locking member 411 can drive the second locking member 412 to move along the axial direction of the first locking hole 2212, improving the reliability of the armrest mechanism 10.

[0078] Specifically in this embodiment, the second locking member 412 can be provided as a telescopic limit pin. The transmission member 413 can be provided as a transmission rivet. Please refer to Figure 1 and Figure 5 for understanding. The first locking member 411 can be provided as a locking sleeve, and a first reverse buckle 4111 is provided on the locking sleeve. The first reverse buckle 4111 is used for engaging with the engaging groove on the fuselage. When the locking assembly 400 is in the semi-unlocked position or the fully unlocked position, along the axial direction of the connecting pipe, the first reverse buckle 4111 and the engaging groove are misaligned so that they cannot be locked together. When the locking assembly 400 is in the locked position, along the axial direction of the connecting pipe, the first reverse buckle 4111 and the engaging groove are correspondingly arranged so that they can be locked together.

[0079] In other embodiments, the first reverse buckle 4111 can also be used for locking and cooperating with a second reverse buckle on the fuselage. When the locking assembly 400 is in the semi-unlocked position or the fully unlocked position, along the axial direction of the connecting pipe, the first reverse buckle 4111 and the second reverse buckle are misaligned so that they cannot be locked and cooperated. When the locking assembly 400 is in the locked position, along the axial direction of the connecting pipe, the first reverse buckle 4111 and the second reverse buckle are correspondingly arranged so that they can be locked and cooperated.

[0080] Such as Figure 5 and Figure 6As shown, in one embodiment, the locking assembly 400 further includes an elastic reset member 414, which is installed in the connecting tube and is in contact with the second locking member 412. The elastic reset member 414 is configured to be compressed when the locking assembly 400 is in the fully unlocked position and the semi-unlocked position to apply an elastic reset force to the second locking member 412. In this way, the elastic reset member 414 can provide an elastic reset force for the second locking member 412, so that the second locking member 412 maintains a trend of moving toward the free end 2211, ensuring that the second locking member 412 can automatically pass through the first locking hole 2212 and the third locking hole 2312 and remain fixed when the second armrest group 230 is retracted to the retracted position, and the second locking member 412 can automatically pass through the first locking hole 2212 and the second locking hole 2311 and remain fixed when the second armrest group 230 is extended to the fully extended position, thereby improving the practicality of the armrest mechanism 10.

[0081] like Figure 5 and Figure 6 As shown, optionally, the first armrest assembly 220 further includes a mounting member 224, which is mounted on one end of the connecting pipe. A side of the mounting member 224 close to the free end 2211 is provided with a receiving groove 2241 corresponding to and communicating with the first locking hole 2212, and a side of the mounting member 224 away from the free end 2211 is provided with a mounting hole 2242 connected to the receiving groove 2241; the second locking member 412 is penetrated through the mounting hole 2242 and the receiving groove 2241, and the outer side wall of the part of the second locking member 412 located in the receiving groove 2241 is provided with a conflicting portion 4121; the elastic return member 414 is sleeved on the outer side wall of the second locking member 412, and the two ends of the elastic return member 414 are respectively in conflict with the conflicting portion 4121 and the bottom wall of the receiving groove 2241.

[0082] Specifically in this embodiment, the mounting member 224 can be configured as a mounting sleeve. The elastic reset member 414 can be configured as a compression spring. Both locking assemblies 400 include an elastic reset member 414, and the two elastic reset members 414 are configured correspondingly to the two second locking members 412. In other embodiments, the two locking assemblies 400 can also share one elastic reset member 414, and the elastic reset member 414 is located between the two second locking members 412 and is in conflict with the two second locking members 412.

[0083] like Figure 5 and Figure 6As shown, optionally, the first armrest group 220 further includes a second connecting member 225. The second connecting member 225 is provided with a connecting channel 2251 so that the second connecting member 225 is sleeved on the outer sidewall of the free end 2211. Both sides of the second connecting member 225 are provided with fifth locking holes 2252 corresponding to and communicating with the two first locking holes 2212. One side of the second connecting member 225 close to the locking assembly 400 is provided with an annular flange 2253 extending around the axis of the fifth locking hole 2252. The number of the second connecting members 225 is two, and the two second connecting members 225 are correspondingly arranged with the two free ends 2211. Both ends of the connecting pipe extend into the two annular flanges 2253 respectively and are fixedly connected with the two annular flanges 2253.

[0084] Specifically in this embodiment, the second connecting member 225 is arranged in a T shape.

[0085] As Figure 5 shown, optionally, the first armrest group 220 further includes a decorative sleeve 226. The decorative sleeve 226 is sleeved on the connecting pipe to block at least part of the first locking member 411.

[0086] As Figure 1 and Figure 9 shown, optionally, one end of the inner armrest tube 231 away from the outer armrest tube 221 is set as a connecting end. The second armrest group 230 further includes a handle 233. Both ends of the handle 233 are correspondingly connected with the two connecting ends. The mounting portion 2331 is correspondingly arranged on the handle 233.

[0087] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0088] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0089] In this application, unless otherwise clearly specified or limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0090] In this application, unless otherwise clearly specified or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.

[0091] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0092] It should also be understood that when interpreting the connection relationship or position relationship of elements, although not clearly described, the connection relationship and position relationship are interpreted to include an error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximate" or "substantially" can mean within one or more standard deviations, which is not limited here.

[0093] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0094] The above embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An armrest mechanism, characterized in that, Comprising: A mounting base; An armrest assembly rotatably coupled to the mounting base; A first limiting assembly including a damping member and a one-way rotating member disposed along the rotation axis direction of the armrest assembly, the damping member being connected to the one-way rotating member, and one of the two being connected to the mounting base and the other being connected to the armrest assembly; Wherein, when the armrest assembly rotates in the opening direction, the one-way rotating member is in a rotating state and the damping member does not generate damping; when the armrest assembly rotates in the pressing direction, the one-way rotating member is in a self-locking state and the damping member generates damping.

2. The armrest mechanism according to claim 1, characterized in that, The damping member and the one-way rotating member are spaced apart, and the first limiting assembly further includes an adapter member located between the damping member and the one-way rotating member, the adapter member being connected to both the damping member and the one-way rotating member.

3. The armrest mechanism according to claim 2, characterized in that, A transmission shaft is provided on one side of the adapter member close to the one-way rotating member, and the one-way rotating member is fixedly sleeved on the transmission shaft; And / or, transmission protrusions and transmission grooves are respectively provided on the sides of the damping member and the adapter member close to each other, and the transmission protrusions and the transmission grooves are in plug-in fit.

4. The armrest mechanism according to claim 1, characterized in that, The armrest assembly includes a rotating shaft, and a first mounting groove is provided at one end of the rotating shaft. The mounting base includes a first stopper located at the end of the rotating shaft where the first mounting groove is provided. A second mounting groove is provided on the side of the first stopper close to the rotating shaft, and the second mounting groove communicates with the first mounting groove to form a mounting cavity for mounting the first limiting assembly.

5. The armrest mechanism according to claim 4, wherein The one-way rotating member is installed in the second mounting groove and connected to the first stopper. A mounting shaft is provided on the bottom wall of the first mounting groove, and the damping member is sleeved on the mounting shaft. The two sides of the damping member along the rotation axis direction of the armrest assembly are respectively connected to the rotating shaft and the one-way rotating member, and are configured to relatively rotate to generate damping when the rotating shaft rotates in the pressing direction.

6. The armrest mechanism according to claim 4, characterized in that, The mounting base further includes a second stopper located at the end of the rotating shaft away from the first mounting groove. The second stopper is fixedly connected to the first stopper and is respectively in corresponding limiting cooperation with the two ends of the rotating shaft.

7. The armrest mechanism according to claim 6, characterized in that, An annular protrusion and an annular groove are respectively provided on the sides of the second stopper and the rotating shaft close to each other. The annular protrusion and the annular groove are in plug-in fit and are rotatably matched with the inner wall of the annular groove. The central axis of the annular groove coincides with the rotation axis of the rotating shaft.

8. The armrest mechanism according to any one of claims 1 to 7, characterized in that, The armrest assembly includes a rotating shaft, a first armrest group and a second armrest group. The rotating shaft is rotatably provided on the mounting base and connected to the first armrest group. The second armrest group is telescopically matched with the first armrest group. The second armrest group is provided with a mounting portion for mounting an interaction device.

9. The armrest mechanism according to claim 8, characterized in that, There are two rotating shafts, two first limiting assemblies and two mounting bases. The two rotating shafts are both connected to the first armrest group, and the rotation axes of the two rotating shafts coincide. The two first limiting assemblies and the two mounting bases are respectively arranged corresponding to the two rotating shafts.

10. A machine device, characterized in that, Comprising a fuselage and an armrest mechanism as described in any one of claims 1 to 9, the armrest mechanism being mounted on the fuselage.

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