Armrest device and seat

Abstract

The utility model discloses an armrest device and a seat, the armrest device comprises a connecting arm and a supporting assembly, and the upper end of the connecting arm is provided with a connecting seat; the supporting assembly comprises a handrail seat, a rotating supporting piece, a rotating arm and a tensioning spring, the rotating supporting piece is arranged on the connecting seat, the rotating supporting piece is provided with a first rotating shaft and a second rotating shaft, the second rotating shaft is located on the rear side above the first rotating shaft, the handrail seat is provided with a first connecting shaft and a second connecting shaft, and the second connecting shaft is located above the first connecting shaft; the rotating arm comprises a first supporting arm and a second supporting arm, the two ends of the first supporting arm are connected with the first rotating shaft and the second connecting shaft respectively, the two ends of the second supporting arm are connected with the second rotating shaft and the second connecting shaft respectively, and the two ends of the tensioning spring are connected with the first supporting arm and the second supporting arm respectively; when the rotating arm rotates upwards, the first supporting arm and the second supporting arm are matched to pull the armrest base to rotate so that the armrest base can incline, and therefore the elbows of a user can be well supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sitting furniture technical field, especially a handrail device and a seat. BACKGROUND

[0002] In the related art, the seat has a handrail, but for different users using the seat to work, the elbow part has a certain height difference with the desktop of the desk, the traditional handrail can only be adapted through height lifting, however, due to the difference of different people in the working habit, part of the users are used to slightly tilting the elbow to work, and the existing handrail type cannot effectively support the elbow part of the user in this case. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art, for this purpose, the utility model provides a handrail device, can realize the adjustment of the height and the inclination angle of the handrail seat, greatly improves the comfort and the support when the user works.

[0004] In a second aspect, the utility model further provides a seat applying the above-mentioned handrail device.

[0005] According to the handrail device provided by the utility model in the first aspect, the handrail device comprises:

[0006] A connecting arm is provided with a connecting seat at the upper end;

[0007] A support assembly comprises a handrail seat, a rotating support, a rotating arm and a tension spring, the rotating support is arranged on the upper side of the connecting seat, the rotating support is provided with a first rotating shaft and a second rotating shaft, the second rotating shaft is located on the rear side above the first rotating shaft, the handrail seat is provided with a first connecting shaft and a second connecting shaft, the second connecting shaft is located above the first connecting shaft, the rotating arm comprises a first support arm and a second support arm, the two ends of the first support arm are connected with the first rotating shaft and the second connecting shaft respectively, the two ends of the second support arm are connected with the second rotating shaft and the second connecting shaft respectively, one end of the tension spring is connected to the first support arm, and the other end is connected to the second support arm;

[0008] When the rotating arm is rotated upwards, the first support arm and the second support arm can pull the handrail seat to rotate, so that the inclination of the handrail seat can be realized.

[0009] The handrail device has at least the following beneficial effects: through the first rotating shaft and the second rotating shaft on the rotating support and the first connecting shaft and the second connecting shaft on the handrail seat, and in cooperation with the differentiated rotating tracks of the first supporting arm and the second supporting arm, the handrail seat can be tilted following the rotation of the rotating arm, thereby providing more suitable and comfortable support for the user, and thereby improving the comfort of the user when using the seat.

[0010] The handrail device further comprises a gear position adjusting assembly, the gear position adjusting assembly comprises a ratchet wheel, a locking piece, an elastic piece and a separating piece, the ratchet wheel is arranged on the front side of the rotating support and has a plurality of ratchet grooves, the locking piece is rotationally connected to one end of the connecting arm close to the rotating support, one end of the locking piece close to the ratchet wheel is provided with a ratchet tooth, and the other end away from the ratchet wheel is provided with an abutting plate, one end of the elastic piece is connected to the rotating arm, and the other end abuts against the abutting plate, so that the ratchet tooth is clamped into the ratchet wheel; the separating piece is rotationally connected to the rotating support and located on one side of the ratchet wheel, the separating piece is provided with a limiting groove, the limiting column is arranged in the limiting groove, one side of the separating piece towards the ratchet tooth is provided with a separating guide rod and a separating groove, and the rotating arm is upwardly rotated to drive the locking piece and the separating piece to be upwardly rotated, so that the ratchet tooth sequentially passes through a plurality of the ratchet grooves, and the limiting groove moves relative to the limiting column, when the limiting column abuts against the lower end of the limiting groove, the ratchet tooth is separated from the ratchet groove and clamped into the separating groove; the rotating arm is downwardly rotated to drive the locking piece and the separating piece to be downwardly rotated, when the limiting column abuts against the upper end of the limiting groove, the separating guide rod can abut against the locking piece to guide the rotation of the locking piece, and the ratchet tooth is separated from the separating groove and clamped into the ratchet groove.

[0011] The handrail device further comprises a gear position adjusting assembly, the gear position adjusting assembly comprises a ratchet wheel, a locking piece, an elastic piece and a separating piece, the ratchet wheel is arranged on the front side of the rotating support and has a plurality of ratchet grooves, the locking piece is rotationally connected to one end of the connecting arm close to the rotating support, one end of the locking piece close to the ratchet wheel is provided with a ratchet tooth, and the other end away from the ratchet wheel is provided with an abutting plate, one end of the elastic piece is connected to the rotating arm, and the other end abuts against the abutting plate, so that the ratchet tooth is clamped into the ratchet wheel; the separating piece is rotationally connected to the rotating support and located on one side of the ratchet wheel, the separating piece is provided with a limiting groove, the limiting column is arranged in the limiting groove, one side of the separating piece towards the ratchet tooth is provided with a separating guide rod and a separating groove, and the rotating arm is upwardly rotated to drive the locking piece and the separating piece to be upwardly rotated, so that the ratchet tooth sequentially passes through a plurality of the ratchet grooves, and the limiting groove moves relative to the limiting column, when the limiting column abuts against the lower end of the limiting groove, the ratchet tooth is separated from the ratchet groove and clamped into the separating groove; the rotating arm is downwardly rotated to drive the locking piece and the separating piece to be downwardly rotated, when the limiting column abuts against the upper end of the limiting groove, the separating guide rod can abut against the locking piece to guide the rotation of the locking piece, and the ratchet tooth is separated from the separating groove and clamped into the ratchet groove.

[0012] The handrail device further comprises a gear position adjusting assembly, the gear position adjusting assembly comprises a ratchet wheel, a locking piece, an elastic piece and a separating piece, the ratchet wheel is arranged on the front side of the rotating support and has a plurality of ratchet grooves, the locking piece is rotationally connected to one end of the connecting arm close to the rotating support, one end of the locking piece close to the ratchet wheel is provided with a ratchet tooth, and the other end away from the ratchet wheel is provided with an abutting plate, one end of the elastic piece is connected to the rotating arm, and the other end abuts against the abutting plate, so that the ratchet tooth is clamped into the ratchet wheel; the separating piece is rotationally connected to the rotating support and located on one side of the ratchet wheel, the separating piece is provided with a limiting groove, the limiting column is arranged in the limiting groove, one side of the separating piece towards the ratchet tooth is provided with a separating guide rod and a separating groove, and the rotating arm is upwardly rotated to drive the locking piece and the separating piece to be upwardly rotated, so that the ratchet tooth sequentially passes through a plurality of the ratchet grooves, and the limiting groove moves relative to the limiting column, when the limiting column abuts against the lower end of the limiting groove, the ratchet tooth is separated from the ratchet groove and clamped into the separating groove; the rotating arm is downwardly rotated to drive the locking piece and the separating piece to be downwardly rotated, when the limiting column abuts against the upper end of the limiting groove, the separating guide rod can abut against the locking piece to guide the rotation of the locking piece, and the ratchet tooth is separated from the separating groove and clamped into the ratchet groove.

[0013] The handrail device further comprises a gear position adjusting assembly, the gear position adjusting assembly comprises a ratchet wheel, a locking piece, an elastic piece and a separating piece, the ratchet wheel is arranged on the front side of the rotating support and has a plurality of ratchet grooves, the locking piece is rotationally connected to one end of the connecting arm close to the rotating support, one end of the locking piece close to the ratchet wheel is provided with a ratchet tooth, and the other end away from the ratchet wheel is provided with an abutting plate, one end of the elastic piece is connected to the rotating arm, and the other end abuts against the abutting plate, so that the ratchet tooth is clamped into the ratchet wheel; the separating piece is rotationally connected to the rotating support and located on one side of the ratchet wheel, the separating piece is provided with a limiting groove, the limiting column is arranged in the limiting groove, one side of the separating piece towards the ratchet tooth is provided with a separating guide rod and a separating groove, and the rotating arm is upwardly rotated to drive the locking piece and the separating piece to be upwardly rotated, so that the ratchet tooth sequentially passes through a plurality of the ratchet grooves, and the limiting groove moves relative to the limiting column, when the limiting column abuts against the lower end of the limiting groove, the ratchet tooth is separated from the ratchet groove and clamped into the separating groove; the rotating arm is downwardly rotated to drive the locking piece and the separating piece to be downwardly rotated, when the limiting column abuts against the upper end of the limiting groove, the separating guide rod can abut against the locking piece to guide the rotation of the locking piece, and the ratchet tooth is separated from the separating groove and clamped into the ratchet groove.

[0014] According to the handrail device provided in the first aspect of the present invention, the connecting seat is rotatably connected to the connecting arm.

[0015] According to the handrail device provided in the first aspect embodiment of the present utility model, the lower end face of the connecting seat is provided with a plurality of downward-facing and arc-shaped stop grooves, and the upper end of the connecting arm is provided with a retractable stop post, the upper end of the stop post being hemispherical and fitting into the stop groove.

[0016] According to the handrail device provided in the first aspect of the present invention, the support component further includes a handrail pad, which is configured to slide relative to the handrail seat.

[0017] According to the first aspect of the present invention, the armrest backrest is configured to rotate relative to the armrest seat.

[0018] The seat provided according to the second aspect embodiment of the present invention has all the beneficial effects of the first aspect embodiment of the present invention.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 A schematic diagram of the handrail device provided in an embodiment of this utility model;

[0022] Figure 2 A cross-sectional view of the handrail device is provided for an embodiment of this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 A cross-sectional view of the handrail device from another angle is provided for an embodiment of this utility model;

[0025] Figure 5 This is an exploded view of the handrail device provided in an embodiment of the present utility model.

[0026] The attached icons are numbered as follows:

[0027] Connecting arm 100; stop post 101; connecting seat 110; insertion slot 111;

[0028] Support assembly 200; armrest seat 210; first connecting shaft 211; second connecting shaft 212; rotating support 220; first rotating shaft 221; second rotating shaft 222; limiting column 223; plug-in block 224; rotating arm 230; first support arm 231; second support arm 232; upper hook 233; lower hook 234; tension spring 240; armrest pad 250;

[0029] Gear adjusting assembly 300; ratchet wheel 310; locking piece 320; ratchet teeth 321; abutting plate 322; elastic piece 330; separation piece 340; limiting groove 341; separation guide rod 342; separation groove 343. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that, if the orientation description, such as up, down, left, right and the like, is described, the orientation or positional relationship shown in the drawings is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the present application, if the first, second, etc. are described for the purpose of distinguishing technical features, it cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated or the sequence of the technical features indicated.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0034] The embodiments of the present application propose a kind of armrest device, applied to seat, the specific structure and function of armrest device provided by the embodiments of the present application will be further described below in combination with text and drawings.

[0035] With reference to Figures 1 to 4According to the handrail device provided by the first aspect of the utility model, the upper end of the connecting arm 100 is provided with a connecting seat 110 for connecting with the chassis or frame of the seat. The support assembly 200 comprises a handrail seat 210, a rotating support 220, a rotating arm 230 and a tension spring 240. The rotating support 220 is fixed to the upper side of the connecting seat 110 and is provided with a first rotating shaft 221 and a second rotating shaft 222. The second rotating shaft 222 is located on the rear side above the first rotating shaft 221, which provides structural support for subsequent inclination adjustment. The handrail seat 210 is provided with a first connecting shaft 211 and a second connecting shaft 212, which correspond to the first rotating shaft 221 and the second rotating shaft 222 of the rotating support 220. The rotating arm 230 is composed of a first support arm 231 and a second support arm 232. The two ends of the first support arm 231 are connected with the first rotating shaft 221 and the second connecting shaft 212 respectively, and the two ends of the second support arm 232 are connected with the second rotating shaft 222 and the second connecting shaft 212 respectively. This connection mode enables the rotating arm 230 to rotate around the rotating shaft and drives the handrail seat 210 to adjust the inclination. One end of the tension spring 240 is connected to the first support arm 231, and the other end is connected to the second support arm 232. The tension spring 240 provides a certain tension to the rotating arm 230, so that the handrail seat 210 can remain stable after adjusting the inclination angle and is not easily changed in position due to external force.

[0036] When the user uses the handrail device, the height and inclination angle of the handrail seat 210 can be adjusted by rotating the rotating arm 230 upward. Specifically, during rotation, the rotating trajectories of the first support arm 231 and the second support arm 232 will be different due to the different positions of the first rotating shaft 221 and the second rotating shaft 222. The different rotating trajectories enable the first support arm 231 and the second support arm 232 to cooperate to pull the handrail seat 210 to adjust the inclination during rotation. The user can easily adjust the inclination angle of the handrail seat 210 according to his own working habits and comfort requirements, thereby obtaining the best support effect.

[0037] According to the handrail device provided by the first aspect of the utility model, the first rotating shaft 221 and the second rotating shaft 222 on the rotating support 220, and the first connecting shaft 211 and the second connecting shaft 212 on the handrail seat 210 cooperate with the differentiating rotating trajectories of the first support arm 231 and the second support arm 232, so that the handrail seat 210 can be inclined following the rotation of the rotating arm 230, thereby providing more conformable and comfortable support for the user, thereby improving the comfort of the user when using the seat.

[0038] Reference Figures 2 to 4, the handrail device further comprises a gear adjusting assembly 300, the gear adjusting assembly 300 comprises a ratchet wheel 310, a locking piece 320, an elastic piece 330 and a separation piece 340. The ratchet wheel 310 is arranged on the front side of the rotating support piece 220, and has a plurality of ratchet grooves, the plurality of ratchet grooves are used for cooperating with the ratchet teeth 321 on the locking piece 320, so that the inclination angle locking of the handrail device is realized. The locking piece 320 is rotationally connected at one end of the connecting arm 100 close to the rotating support piece 220, and the one end is provided with the ratchet teeth 321 for clamping into the ratchet groove of the ratchet wheel 310, and the other end is provided with an abutting plate 322. One end of the elastic piece 330 is connected on the rotating arm 230, and the other end is abutted on the abutting plate 322 of the locking piece 320. When the rotating arm 230 rotates, the elastic piece 330 can exert a force on the locking piece 320 through the abutting plate 322, so that the ratchet teeth 321 can be firmly clamped into the ratchet groove, thereby keeping the inclination angle of the handrail device stable. The separation piece 340 is rotationally connected on the rotating support piece 220 and located on one side of the ratchet wheel 310. The separation piece 340 is provided with a limiting groove 341, and the limiting column 223 is arranged in the limiting groove 341. In addition, the side of the separation piece 340 towards the ratchet teeth 321 is further provided with a separation guide rod 342 and a separation groove 343. The design of the separation guide rod 342 and the separation groove 343 makes the precise cooperation and separation between the ratchet teeth 321 and the ratchet groove and the separation groove 343 when the rotating arm 230 rotates upwards or downwards.

[0039] When in use, when the user rotates the rotating arm 230 upwards to adjust the inclination angle of the handrail device, the rotating arm 230 drives the locking piece 320 and the separation piece 340 to rotate upwards together. In this process, the ratchet teeth 321 pass through the plurality of ratchet grooves on the ratchet wheel 310 in sequence, and the inclination angle adjustment is realized. At the same time, the limiting groove 341 moves relative to the limiting column 223. When the limiting column 223 abuts the lower end of the limiting groove 341, if the user continues to rotate the rotating arm 230 upwards, the ratchet teeth 321 will be separated from the ratchet groove located at the uppermost end of the ratchet wheel 310 and clamped into the separation groove 343. At this time, the locking piece 320 and the ratchet wheel 310 remain in a separated state, the inclination angle of the handrail device is temporarily unlocked, and the rotating arm 230 can be freely rotated downwards.

[0040] Conversely, when the user turns the rotating arm 230 downward, the rotating arm 230 will drive the locking piece 320 and the separating piece 340 to turn downward together. When the limiting column 223 abuts to the upper end of the limiting groove 341, the separating piece 340 is fixed, and if the user continues to turn the rotating arm 230 downward, the locking piece 320 will turn downward relative to the separating piece 340, and the separating guide rod 342 will abut to the locking piece 320 and guide the rotation thereof. In this way, the ratchet teeth 321 will be separated from the separating groove 343 and re-engage in the ratchet groove. At this time, the rotating arm 230 can be re-rotated upward to adjust the height of the rotating arm 230 and the height and inclination of the armrest seat 210.

[0041] It can be understood that, through the design of the gear adjusting assembly 300, the user can more conveniently adjust and lock the inclination angle of the armrest device, so as to meet the use requirements in different office scenes. Meanwhile, the design also improves the stability and durability of the armrest device.

[0042] With reference to Figure 3 and Figure 4 , according to the armrest device provided by the first aspect of the present application, the side of the ratchet teeth 321 facing the separating piece 340 is provided with a first guide inclined surface. The first guide inclined surface is arranged so that, when the ratchet teeth 321 contact the separating piece 340, a gradually increasing contact force can be generated, thereby guiding the ratchet teeth 321 to move along a specific direction. Meanwhile, the side of the separating piece 340 facing the ratchet teeth 321 is provided with a second guide inclined surface extending to the separating groove 343. The second guide inclined surface matches the first guide inclined surface, forming a guide channel, so that the ratchet teeth 321 can more easily slide into the separating groove 343 during the rotation.

[0043] When the user adjusts the inclination angle of the armrest device so that the ratchet teeth 321 need to be separated from the ratchet wheel 310 and engaged in the separating groove 343, the cooperation of the first guide inclined surface and the second guide inclined surface plays a guiding role. With the continuous rotation of the rotating arm 230, the first guide inclined surface of the ratchet teeth 321 will contact the second guide inclined surface of the separating piece 340, and the ratchet teeth 321 will be guided to slide into the separating groove 343 along the second guide inclined surface.

[0044] With reference to Figure 2 and Figure 4 , according to the armrest device provided by the first aspect of the present application, the lower side of the second support arm 232 is designed with an upper hook 233 extending downward and forward. The shape and position of the upper hook 233 can be set according to actual requirements to ensure that it can be firmly connected with one end of the tension spring 240 and maintain a stable connection state during the adjustment of the armrest device.

[0045] Correspondingly, the upper side of the first supporting arm 231 is provided with a downward and rearward extending lower hook 234. The lower hook 234 cooperates with the upper hook 233, and the other end of the tension spring 240 is connected to the lower hook 234. This not only enables the tension spring 240 to be more evenly distributed on the rotating arm 230, but also improves the structural strength of the entire handrail device.

[0046] When the handrail device needs to adjust the height and inclination angle of the handrail seat 210, the user rotates the rotating arm 230 upward or downward by operation. In this process, the tension spring 240 always maintains a proper tension on the rotating arm 230 through the connection of the upper hook 233 and the lower hook 234. This tension not only helps the rotating arm 230 to maintain smooth movement during adjustment, but also ensures that the handrail seat 210 can be stably maintained at the required position after adjustment.

[0047] With reference to Figure 4 and Figure 5 , according to the handrail device provided by the first aspect of the present application, the lower end of the rotating support 220 is provided with a square plug-in block 224, the upper end of the connecting seat 110 is provided with a plug-in groove 111 matched with the shape of the plug-in block 224, and the plug-in block 224 is inserted into the plug-in groove 111. During installation, the user aligns the plug-in block 224 at the lower end of the rotating support 220 with the plug-in groove 111 at the upper end of the connecting seat 110, and then fixes it with a fastener. Since the matching degree between the plug-in block 224 and the plug-in groove 111 is high, the installation process is very simple and does not require additional tools or complex operations. At the same time, this plug-in type connection makes the connection between the rotating support 220 and the connecting seat 110 more secure, and it is not easy to loosen or fall off even after a long period of use.

[0048] With reference to Figure 5 , according to the handrail device provided by the first aspect of the present application, the connecting seat 110 is rotatably connected to the connecting arm 100, and the rotating arm 230 can drive the connecting seat 110 to rotate, so that the handrail seat 210 realizes position adjustment in the horizontal direction. When the user needs to adjust the angle or position of the handrail device, the user only needs to rotate the connecting seat 110 slightly to realize the overall rotation of the handrail seat 210. This rotation is smooth and continuous, and will not affect the user's experience due to the jamming or resistance during rotation. At the same time, since the rotating connection between the connecting seat 110 and the connecting arm 100 is stable, the handrail device can maintain stable performance even after a long period of use, and will not loosen or shake.

[0049] With reference to Figure 4 and Figure 5, according to the utility model first aspect embodiment provides handrail device, the lower end surface of connecting seat 110 is equipped with a plurality of downward and arc-shaped gear slot (not shown in the drawing), a plurality of gear slot interval arrangement along the circumference of connecting seat 110, the upper end of connecting arm 100 is equipped with retractable gear column 101, the retractable function of gear column 101 is realized through the spring mechanism inside, and the upper end of gear column 101 is semispherical and is inserted into gear slot.

[0050] When the handrail device needs to be adjusted to a specific position, the user only needs to rotate the rotating support seat and the rotating seat by rotating the arm 230, so that the semispherical upper end of the gear column 101 is aligned and inserted into different gear slots, thereby realizing the rotation adjustment of the handrail seat 210 in the horizontal direction.

[0051] Referring to Figure 1 and Figure 2 , according to the utility model first aspect embodiment provides handrail device, support assembly 200 further includes handrail pad 250, handrail pad 250 is configured to be able to slide relative to handrail seat 210, the sliding handrail pad 250 allows the user to easily adjust the position of the handrail pad 250 according to his own use habits and needs. Whether it is typing, writing or resting, the user can easily slide the handrail pad 250 to find the most suitable hand support position, thereby effectively reducing the pressure on the wrist and arm and improving the comfort of use.

[0052] It can be understood that the handrail pad 250 can slide relative to the handrail seat 210, which is a conventional technical means available to those skilled in the art, and will not be described here.

[0053] Referring to Figure 1 and Figure 2 , according to the utility model first aspect embodiment provides handrail device, handrail pad 250 back configuration is able to rotate relative to handrail seat 210. The rotatable handrail pad 250 allows the user to easily adjust the angle of the handrail pad 250 according to his own use habits and needs, so that the handrail pad 250 can better support the user's hand.

[0054] It can be understood that the handrail pad 250 can rotate relative to the handrail seat 210, which is a conventional technical means available to those skilled in the art, and will not be described here.

[0055] According to the utility model second aspect embodiment provides seat, the seat has all the beneficial effects of the utility model first aspect embodiment.

[0056] Of course, the utility model is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A handrail device, characterized in that The utility model relates to a kind of adjustable armrests, including: Connecting arm, upper end is equipped with connecting seat; Supporting component, including handrail seat, rotating support, rotating arm and tension spring, the rotating support is equipped in the upper side of the connecting seat, the rotating support is equipped with first rotation axis and second rotation axis, the second rotation axis is located in the rear side above the first rotation axis, the handrail seat is equipped with first connecting shaft and second connecting shaft, the second connecting shaft is located above the first connecting shaft, the rotating arm includes first support arm and second support arm, both ends of the first support arm are connected with the first rotation axis and the second connecting shaft respectively, both ends of the second support arm are connected with the second rotation axis and the second connecting shaft respectively, one end of the tension spring is connected to the first support arm, the other end is connected to the second support arm; Wherein, when the rotating arm is upwardly rotated, the first support arm and the second support arm can pull the handrail seat to rotate, so as to make the handrail seat incline.

2. The handrail apparatus of claim 1, wherein Also including gear adjusting component, the gear adjusting component includes ratchet wheel, locking piece, elastic piece and separating piece, the ratchet wheel is equipped in the front side of the rotating support and has multiple ratchet grooves, the locking piece is rotatably connected to one end of the connecting arm close to the rotating support, the end of the locking piece close to the ratchet wheel is equipped with ratchet tooth, the end away from the ratchet wheel is equipped with abutment plate, one end of the elastic piece is connected to the rotating arm, the other end abuts the abutment plate, so that the ratchet tooth is clamped into the ratchet wheel;The separating piece is rotatably connected to one side of the rotating support and is located at one side of the ratchet wheel, one side of the rotating support is equipped with limiting column, the separating piece is equipped with limiting slot, the limiting column is inserted into the limiting slot, one side of the separating piece towards the ratchet tooth is equipped with separating guide rod and separating groove, the rotating arm is upwardly rotated, can drive the locking piece and the separating piece to rotate upward, to make the ratchet tooth pass through multiple ratchet grooves in turn, and make the limiting slot move relative to the limiting column, when the limiting column abuts to the lower end of the limiting slot, the ratchet tooth is separated from the ratchet groove and clamped into the separating groove;The rotating arm is downwardly rotated, can drive the locking piece and the separating piece to rotate downward, when the limiting column abuts to the upper end of the limiting slot, the separating guide rod can abut the locking piece to guide the locking piece to rotate, the ratchet tooth is separated from the separating groove and clamped into the ratchet groove.

3. The handrail apparatus of claim 2, wherein The ratchet tooth is equipped with first guide slope towards one side of the separating piece, the second guide slope of the separating piece towards the ratchet tooth extends to the separating groove, when the first guide slope abuts to the second guide slope, the ratchet tooth can slide into the separating groove along the second guide slope.

4. The handrail assembly of claim 1, wherein The lower side of the second support arm is equipped with upper hook extending downward and forward, the upper side of the first support arm is equipped with lower hook extending upward and backward, and the two ends of the tension spring are connected with the upper hook and the lower hook respectively.

5. The handrail assembly of claim 1, wherein The lower end of the rotating support is equipped with plug-in block, the upper end of the connecting seat is equipped with plug-in slot, and the plug-in block is inserted into the plug-in slot.

6. The handrail assembly of claim 1, wherein The connecting seat is rotatably connected to the connecting arm.

7. A handrail arrangement according to claim 6, c h a r a c t e r i s e d in that The lower end surface of the connecting seat is provided with a plurality of downwardly and arcuately opened gear grooves, and the upper end of the connecting arm is provided with a telescopic gear column, the upper end of the gear column being semispherical and being clamped into the gear groove.

8. The handrail apparatus of claim 1, wherein The support assembly further comprises a handrail pad configured to be slidable relative to the handrail seat.

9. A handrail arrangement according to claim 8, c h a r a c t e r i s e d in that The handrail pad is configured to be rotatable relative to the handrail seat.

10. A seat, characterized by A handrail device comprising any one of the handrail devices of claims 1 to 9.

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