CN219782052U - An armrest and seat - Google Patents

Abstract

The utility model discloses an armrest and a seat, which include a support body and a panel assembly. The panel assembly includes an armrest panel and a rotating connector connected between the armrest panel and the support body. There is a rotating connector between the rotating connector and the support body. Mechanism; the rotating mechanism includes a shaft connection part provided on the rotating connector and a rotation fitting part provided at the upper end of the armrest body; a first rotation slope is provided at the bottom end of the shaft connection part, and the upper end surface of the rotation fitting part is provided with a corresponding There is a second rotating slope; and from back to front, the second rotating slope is inclined toward the front and upward; the armrest panel has a horizontal support position where the handrail support surface at the top thereof tends to be horizontal, and in this horizontal support position, the first rotating slope It coincides with the second rotation slope; and when the armrest panel rotates from the horizontal support position relative to the support body, the rotation guide between the first rotation slope and the second rotation slope causes the armrest support surface at the top of the armrest panel to change its angle at the same time.

Description

An armrest and seat

Technical field

The utility model relates to the field of seating, in particular to an armrest and a seat.

Background technique

Seats are indispensable tools in people's life, study and work. People may sit in seats for a long time to do various things, so the comfort of the seat is very important. As an integral part of the seat, the armrests of the seats play an important role in providing comfort; the armrests of traditional seats are fixed structures with no adjustment function and cannot be raised or lowered, making them unable to adapt to people of different body heights; nor can they be adapted to people of different body heights. Rotation, thus cannot adapt to different people's hands-off habits, so it cannot meet people's comfort requirements. In order to enrich the functions of the armrests, some existing seats are designed with armrests that can be rotated, raised, lowered, and moved to facilitate user adjustment; however, the rotation and movement of such armrests are adjusted by horizontal rotation and horizontal movement in the horizontal plane. ; The backrest of most existing seats can be tilted and adjusted relative to the seat to make the user more comfortable and convenient for daily use or lying down to rest; however, the backrest and armrest are two separate parts, and the armrest They are generally set on both sides of the seat; so that when the user is using it in a normal sitting position, the back rests on the seat back, the hands can just rest on the armrests, and the back and elbows can be properly supported; however, When the user leans back, the backrest rotates backwards. Since the armrests can only be adjusted in the horizontal plane, when the person adjusts the elevation angle of the seat, the armrests of the seat cannot adjust the angle synchronously with the backrest of the seat, resulting in great comfort. of reduction.

In addition, for some users who often read or play mobile games on the chair, the user likes to sit on the chair for a long time to operate the game, and the user's hands need to be tilted in front of the chest to operate the game; and the existing There is no doubt that the armrest cannot effectively support the user's elbow, leaving the elbow in a suspended state; it is easy to feel sore and tired over time.

In response to the above problems, it is necessary for the seat armrest to provide effective support for the user's arms and elbows according to the user's different hand angle habits and different usage conditions.

Contents of the invention

The purpose of this utility model is to overcome the above-mentioned shortcomings in the prior art and provide an armrest and a seat. When the armrest panel rotates relative to the support body from the horizontal support position, between the first rotation slope and the second rotation slope, Under the action of rotational guidance, the angle of the armrest support surface formed at the top of the armrest panel changes at the same time, so that the armrest can provide the user's armrest support needs under different usage conditions.

The technical solution of the present utility model is implemented as follows:

An armrest, including: a support body; the armrest support body is arranged longitudinally and is configured to be connected to the side end of the seat; a panel assembly is configured to support the elbow of a human body; the panel assembly includes an armrest panel and an armrest panel connected to the armrest panel and the support A rotary connector between the main bodies; a rotary mechanism is provided between the rotary connector and the support body so that the armrest panel can link the rotary connector to perform circumferential rotation adjustment relative to the support body; the rotary mechanism includes a shaft connection provided on the rotary connector and a rotating fitting part provided at the upper end of the armrest body; the shaft connecting part and the rotating fitting part are butted up and down, and a first rotation slope inclined relative to the horizontal plane is provided at the bottom end of the shaft connecting part, and the upper end surface of the rotating fitting part corresponds The second rotation slope is arranged obliquely and forms a second rotation slope; and from back to front, the second rotation slope is obliquely forward and upward; the armrest panel has a horizontal support position where the armrest support surface at the top thereof tends to be horizontal. In this horizontal support position, The first rotation slope and the second rotation slope coincide; and when the armrest panel rotates from the horizontal support position relative to the support body, the rotation guide between the first rotation slope and the second rotation slope causes the armrest support surface at the top of the armrest panel to rotate simultaneously Angle changes.

Preferably, the first rotation slope and the second rotation slope are ellipses with the same outline; and the long axis of the second rotation slope coincides with the front-to-back direction. When the swivel connector is rotated 180° backward, the armrest panel will remain in the front-to-back direction again.

Preferably, in the horizontal support position, the rotary support member is tilted forward and upward; and the front end of the rotary connection member is connected to the bottom end of the armrest panel, and the shaft connection part is provided at the rear end of the rotary connection member. When the swivel connector rotates, the armrest panel will move instead of rotating in place.

Preferably, the rotating mechanism further includes a rotating shaft disposed on the second rotating slope and protruding upward, and a corresponding shaft hole provided on the first rotating slope, the rotating shaft is rotated through the shaft hole; and the shaft connecting portion The upper end of the shaft is recessed with an installation groove that penetrates the shaft hole up and down, and an adjustment limiter fixedly connected to the rotating shaft is provided in the installation groove. Thereby, the oblique rotation shaft can be prevented from being separated from the rotation fitting portion, so that the oblique rotation shaft can rotate stably relative to the rotation fitting portion.

Preferably, the upper end of the rotating shaft is provided with an upwardly protruding snap-on bump, which is located in the installation groove; the bottom end of the adjustment limiter is correspondingly provided with a snap-on fit that can snap into place with the snap-on bump. The adjusting limiter is embedded in the mounting slot so that the engaging convex block is engaged in the engaging slot, and a longitudinal screw is further connected between the adjusting limiter and the rotating shaft. Then, the adjusting limiter and the rotating shaft are circumferentially fixed, and screws are used to connect and fix the two.

Preferably, a positioning mechanism is also provided between the adjusting limiter and the shaft joint; the adjusting limiter is a cam structure, and the adjusting limiter has a contracted end, and the positioning mechanism includes a recessed part at the bottom of the installation groove. There are several positioning slots on the wall and corresponding positioning protrusions provided at the bottom of the retracted end of the adjusting limiter; the positioning slots are arranged in an arc in the installation slot; and the adjusting limiter is configured to align the positioning protrusions with the installation slot. The bottom wall is a squeeze fit. The adjustment limiter is circumferentially fixed to the support body. When the rotary connector rotates relative to the support body, the positioning protrusion will rotate relative to the trajectory of the positioning slot, causing the adjustment limiter to rotate. During the process, it can stay in multiple rotation positions, and the gear feeling is obvious.

Preferably, in the horizontal support position, the rear end of the armrest panel is provided with a rear inclined support body that is inclined rearward and downward. It conveniently supports the user's elbow and has a more thoughtful design.

A seat includes a chair back component, a seat component and the armrest; the bottom end of the support body is connected to the side end of the seat component; and the chair back component can rotate backward relative to the seat component.

Preferably, the armrest panel has a reclined use position rotated 180° backwards from the horizontal support position relative to the support body. In this reclined use position, the first rotational slope still coincides with the second rotational slope, and the armrest panel faces backwards. While rotating, the armrest supporting surface at the top of the armrest panel is in a state of high front and low rear. At this time, the armrest panel can be conveniently used by the user in the backward state, providing just the right support.

Preferably, a sliding adjustment mechanism is provided between the armrest panel and the rotating connector, and the sliding adjustment mechanism is configured to enable the armrest panel to slide relative to the rotating connector along its length direction. This allows the user to further adjust the front and rear position of the armrest panel in the reclining support position.

Preferably, the armrest panel also has a central oblique support position deflected from the horizontal support position toward the center of the seat; and in the central oblique support position of the armrest panel, the armrest support surface of the armrest panel will be in an inclined state, and the armrest The height of the outer end of the panel will be higher than the height of the inner end of the armrest panel; thus making the armrest support surface an inclined surface with a lower inner side and a higher outer side; which is more suitable for the use state where the user places his arms centrally on the armrest panel. The armrest panel can facilitate users to read or operate mobile games on the seat, so it is more comfortable.

The design starting point, concept and beneficial effects of the utility model adopting the above technical solution are:

First, the rotation adjustment of the armrest panel is realized by arranging a rotation mechanism between the shaft connection part of the rotation connection piece and the rotation matching part of the support body; and the rotation mechanism includes a first rotation slope and a second rotation slope; the armrest panel has Horizontal support position. In this horizontal support position, the armrest support surface formed at the top of the armrest panel tends to be horizontal, and the first rotating slope and the second rotating slope coincide. At this time, the armrest can be used as a regular armrest; when the armrest panel is supported horizontally When the position is rotated relative to the support body, under the action of the rotation guide between the first rotation slope and the second rotation slope, the armrest support surface formed at the top of the armrest panel changes in angle at the same time, so that the armrest can provide users with different use conditions. Handrail support requirements.

For example, if the armrest panel has a tilted use position that is rotated 180° backwards from the horizontal support position relative to the support body, in this tilted use state, the first rotational slope still coincides with the second rotational slope after rotating 180°, and the armrest panel faces backwards. At the same time as it rotates, the armrest support surface at the upper end of the armrest panel switches to the front-high-back-bottom state; so that the change of the armrest panel at this time can just cater to the position of the user's arm in the backward state, so that when the user leans back, the user's arm It also provides effective support for your elbows. And there is a sliding adjustment mechanism between the armrest panel and the rotating connector. The sliding adjustment mechanism is configured to enable the armrest panel to slide relative to the rotating connector along its length direction; and then in the backward support position, the armrest can be further adjusted. The panel slides diagonally in the front and rear directions to adjust its position more accurately, making it more convenient to use.

Secondly, the armrest panel also has a central diagonal support position that is deflected from the horizontal support position toward the center of the seat; at this time, the armrest panel can facilitate the user to read or operate mobile games on the seat. The user's arms can be placed directly on the armrest panel, making the support comfortable. And the difference between this new type of armrest panel and the existing conventional rotatable armrest in the central oblique support position is that under the rotation guidance of the first rotating ramp and the second rotating ramp, the armrest is The armrest support surface of the panel will be in an inclined state, and the height of the outer end of the armrest panel will be higher than the height of the inner end of the armrest panel; thus making the armrest support surface an inclined surface with a lower inside and a higher outside; more suitable for the user to move his arms. It is placed in the center on the armrest panel, so it is more comfortable.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of an armrest in an embodiment of the present utility model;

Figure 2 is a schematic three-dimensional structural diagram of the connection between the panel assembly and the support body in the embodiment of the present invention;

Figure 3 is a schematic three-dimensional structural diagram of the handrail of the present utility model from another angle;

Figure 4 is an exploded view of the connection between the panel assembly and the support body in the embodiment of the present invention;

Figure 5 is a schematic three-dimensional structural diagram of the adjustment limiter disposed in the shaft joint in the embodiment of the present invention;

Figure 6 is a schematic three-dimensional structural diagram of the armrest panel rotated to a central support position in the embodiment of the present invention;

Figure 7 is a schematic three-dimensional structural diagram of the armrest panel rotated to the backward support position in the embodiment of the present invention;

Figure 8 is a schematic three-dimensional structural diagram of the seat in an embodiment of the present utility model;

Figure 9 is a schematic three-dimensional structural diagram of the seat with the armrest main body in the backward support position in the embodiment of the present invention;

Figure 10 is a schematic three-dimensional structural diagram of the present utility model in which the main body of the armrest is further slid forward and backward in a tilted support position;

Figure 11 is a schematic three-dimensional structural diagram of the seat with the armrest main body in the central support position in the embodiment of the present utility model;

Figure 12 is a schematic three-dimensional structural diagram of the armrest support surface in which the armrest main body is in a central support position in the embodiment of the present invention.

The reference numbers are: support body 1; panel assembly 2; armrest panel 3; rotating connector 4; rotating fitting part 5; shaft connecting part 6; connecting upper cover 601; first rotating slope 7; second rotating slope 8; Rotating shaft 9; shaft hole 10; mounting slot 11; armrest support surface 12; limit adjustment piece 13; snap-in bump 14; snap-in slot 15; positioning slot 16; positioning bump 17; rear inclined support body 18; Chair back component A; seat component B.

Detailed ways

In order to understand the above-mentioned objects, features and advantages of the present invention more clearly, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. It should be noted that, as long as there is no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

Many specific details are set forth in the following description to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described here. Therefore, the protection scope of the present utility model is not limited by the following. Limitations of the Specific Embodiments Disclosed.

In the description of the present invention, the term "at least one" refers to one or more than one, unless otherwise expressly limited. The terms "first," "second," "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

This embodiment involves the reference orientation of each component, such as front, rear, etc., which is described in the normal use state when the user sits behind the seat.

The specific implementation modes of the present utility model are as follows:

As shown in Figures 1-12, the present utility model provides an armrest, which includes a longitudinal support body 1 and a panel assembly 2 connected to the upper end of the support body 1; wherein the support body 1 is connected to the side end of the seat. , the panel assembly 2 is connected to the upper end of the support body 1. The panel assembly 2 includes an armrest panel 3 for supporting the user's elbow and a rotary connector 4 connected between the panel assembly 2 and the support body 1; wherein the rotary connector 4 A rotating mechanism is provided between the armrest body 1 and the rotary connector 4 to rotate circumferentially relative to the armrest body 1 to drive the armrest panel 3 to rotate and adjust relative to the armrest body 1 . The rotating mechanism includes a shaft connecting portion 6 provided on the rotating connector 4 and a rotating fitting portion 5 arranged on the upper end of the armrest body 1; The end is provided with a first rotation slope 7 that is inclined relative to the horizontal plane. The upper end surface of the rotation fitting portion 5 is arranged obliquely accordingly and forms a second rotation slope 8; and from back to front, the second rotation slope 8 faces forward and upward; such as As shown in Figure 1, the armrest panel 3 has a horizontal support position. In this horizontal support position, the armrest support surface 12 formed at the top of the armrest panel 3 tends to a horizontal state, and the first rotation slope 7 and the second rotation slope 8 are consistent. The armrest can be used as a conventional armrest; and when the armrest panel 3 rotates from the horizontal support position relative to the support body 1, under the rotation guide action between the first rotation slope 7 and the second rotation slope 8, the top of the armrest panel 3 The formed armrest support surface 12 changes in angle at the same time, so that the armrest can provide the user's armrest support needs in different usage states.

Specifically, as shown in Figures 2-5, in the horizontal support position, the rotating support member 4 is tilted forward and upward; the front end of the rotating support member 4 is connected to the bottom end of the armrest panel 3, and the shaft connection portion 6 is provided on the rotating The rear end of the support member 4. The rotating mechanism also includes a rotating shaft 9 disposed at the center of the second rotating slope 8 and protruding upward, and a corresponding shaft hole 10 provided at the center of the first rotating slope 7 . The rotating shaft 9 rotates through the shaft hole 10 ; And the upper end of the shaft joint 6 is recessed with a mounting groove 11 that penetrates the shaft hole 10 up and down, and an adjustment limiter 13 fixedly connected to the rotating shaft 9 is provided in the mounting groove 11. Specifically: The upper end of the rotating shaft 9 is provided with an upwardly protruding engaging bump 14, which is located in the installation groove 11; the bottom end of the adjustment limiter 13 is correspondingly provided with an engaging bump 14 that can engage The adjusting stopper 13 is embedded in the mounting groove 11 so that the engaging bump 14 is engaged in the engaging groove 15, thereby fixing the adjusting stopper 13 and the rotating shaft 9 circumferentially, and Further, longitudinal screws are connected between the adjusting limiter 13 and the rotating shaft 9, so that the two are connected and fixed; the adjusting limiter 13 is a cam structure, and then after connection, it can limit the rotation connection member 4 from being separated from the support body 1, so that The connection is solid. Furthermore, an upper connection cover 601 is provided at the upper end of the shaft connection portion 6. The upper connection cover 601 can cover the installation groove 11 and beautify the appearance.

As shown in Figures 4 and 5, a positioning mechanism is also provided between the adjustment limiter 13 and the shaft joint 6. The adjustment limiter 13 is a cam structure, and has a shrinking shape. end 112, the positioning mechanism includes a plurality of positioning slots 16 recessed on the bottom wall of the installation groove 11 and a corresponding positioning protrusion 17 provided at the bottom end of the retracted end 112 of the adjustment limiter 13; and the positioning slots 16 are arc-shaped. Arranged in the installation groove 11; the adjustment limiter 13 is fixed circumferentially with the support body 1, and then when the rotary connector 4 rotates relative to the support body 1, the positioning protrusion 17 will be relatively positioned. The trajectory of the groove 16 rotates; and the adjustment limiter 13 is configured such that the positioning protrusion 17 is squeeze-fitted with the bottom wall of the installation groove 11, so that the adjustment limiter 13 can stay in multiple rotation positions during the rotation. The sense of place is obvious.

As shown in Figures 1-2 and 8-11, the first rotation slope 7 and the second rotation slope 8 are ellipses with the same outline; and the long axis direction of the second rotation slope 8 coincides with the front and rear direction. . Then, as shown in Figure 1, in the horizontal support position, the first rotation slope 7 and the second rotation slope 8 coincide with each other, the armrest panel 3 is arranged in the front and rear direction, and the armrest support surface 3 tends to be horizontal; and in The rear end of the armrest panel 3 is also provided with a rear inclined support body 18 that is inclined toward the rear and downward direction. The rear inclined support body 18 is convenient for supporting the user's elbow, making the body feel more comfortable. And by rotating the armrest panel 3 from the horizontal support position, the armrest support surface 12 at the upper end of the armrest panel 3 can be adjusted to different angles to meet the user's needs in different states;

As shown in Figures 8-11, the present utility model further provides a seat, which includes a chair back assembly A, a seat assembly B and the armrests; the support body 1 is connected to the side of the seat assembly B. end, the chair back assembly A can rotate backward relative to the seat assembly B; specifically: as shown in Figure 9-10, when the user sits on the seat and leans back, the chair back assembly A rotates backward, causing the user to The arm position of the arm will also move backward at the same time; and the armrest panel 3 has a tilted use position that is rotated 180° backwards from the horizontal support position relative to the support body 1. In this tilted use state, the first rotation slope 7 rotates 180°. The rear is still in line with the second rotating slope 8, and while the armrest panel 3 rotates rearward, the armrest support surface 12 at the upper end of the armrest panel 3 is converted to a front-high-rear-bottom state; so that the change of the armrest panel 3 at this time can just cater to the rear. The position of the user's arms in the tilted state is such that the user's arms and elbows can also be effectively supported in the tilted state. And as shown in Figure 10, a sliding adjustment mechanism is provided between the armrest panel 3 and the rotating connector 4. The sliding adjustment mechanism is configured to enable the armrest panel 3 to slide relative to the rotating connector 4 along its length direction; and then In this backward support position, the armrest panel 3 can be further adjusted to slide diagonally in the front-to-back direction to adjust its position more accurately, making it more convenient to use; and this sliding adjustment mechanism is commonly provided in existing armrests. The sliding structure enables the armrest panel 3 to be adjusted forward and backward, so no further details will be given in this embodiment.

In addition, as shown in Figures 11-12, the armrest panel 3 also has a central oblique support position that is deflected from the horizontal support position toward the center of the seat; at this time, the armrest panel 3 can facilitate the user to read or read on the seat. Perform mobile gaming operations. The user's arms can be directly centered on the armrest panel 3, making the support comfortable. And as shown in Figure 12, the difference between the new armrest panel 3 in the central oblique support position and the existing conventional rotatable armrest is that the rotation of the first rotation slope 7 and the second rotation slope 8 Under the guidance, at this time, the armrest support surface 12 of the armrest panel 3 will be in an inclined state, specifically, as shown in Figure 12: the height of the outer end of the armrest panel 3 will be higher than the height of the inner end of the armrest panel 3; thus At this time, the armrest support surface 12 is an inclined surface with a lower inner side and a higher outer side; it is more suitable for the use state where the user places his arms centrally on the armrest panel 3, so the comfort is higher.

The present utility model and its embodiments are schematically described above. This description is not limiting. What is shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by the invention and without departing from the creative purpose of the invention, can design a similar structure and embodiment to the technical solution without any creativity, it shall all belong to the invention. protected range.

Claims (11)

1. An armrest, comprising:

a support body; the armrest support body being longitudinally disposed and configured to be coupled to a side end of the seat portion;

a panel assembly configured to support a human elbow; the panel assembly includes a handrail panel and a rotary connector connected between the handrail panel and the support body; a rotating mechanism is arranged between the rotating connecting piece and the supporting main body so that the handrail panel can be linked with the rotating connecting piece to carry out circumferential rotation adjustment relative to the supporting main body; the rotating mechanism comprises a shaft connection part arranged on the rotating connecting piece and a rotating matching part arranged at the upper end of the armrest main body; the shaft connection part is in up-down butt joint with the rotating fit part, a first rotating inclined plane which is inclined relative to the horizontal plane is arranged at the bottom end of the shaft connection part, and the upper end surface of the rotating fit part is correspondingly and obliquely arranged to form a second rotating inclined plane; and the second rotary inclined plane is inclined upwards and forwards from back to front;

the armrest panel is provided with a horizontal supporting position, the armrest supporting surface at the top end of the armrest panel tends to be horizontal, and the first rotary inclined surface is matched with the second rotary inclined surface at the horizontal supporting position; when the armrest panel rotates from the horizontal supporting position relative to the supporting main body, the first rotating inclined plane and the second rotating inclined plane are guided in a rotating way, so that the angle of the armrest supporting surface at the top end of the armrest panel is changed at the same time.

2. The handrail of claim 1, wherein: the first rotary inclined plane and the second rotary inclined plane are elliptical with the same outline; and the long axis of the second rotary inclined plane coincides with the front-back direction.

3. The handrail of claim 1, wherein: in the horizontal supporting position, the rotary connecting piece is inclined to the front upper side; and the front end of the rotary connecting piece is connected to the bottom end of the handrail panel, and the shaft connection part is arranged at the rear end of the rotary connecting piece.

4. The handrail of claim 1, wherein: the rotating mechanism further comprises a rotating shaft which is arranged on the second rotating inclined plane and protrudes upwards, and a shaft hole which is correspondingly arranged at the first rotating inclined plane, and the rotating shaft is rotatably arranged in the shaft hole in a penetrating manner; and the upper end of the shaft connection part is concavely provided with a mounting groove which is vertically communicated with the shaft hole, and an adjusting limiting part which is fixedly connected with the rotating shaft is arranged in the mounting groove.

5. The handrail as claimed in claim 4, wherein: the upper end of the rotating shaft is provided with an upward protruding clamping lug which is positioned in the mounting groove; the bottom of the adjusting limiting piece is correspondingly provided with a clamping groove which can be matched with the clamping projection in a clamping way, the adjusting limiting piece is embedded in the mounting groove so that the clamping projection is clamped in the clamping groove, and a longitudinal screw is further connected between the adjusting limiting piece and the rotating shaft.

6. The handrail as claimed in claim 5, wherein: a positioning mechanism is also arranged between the adjusting limiting piece and the shaft connecting part; the adjusting limiting piece is of a cam structure and is provided with a shrinkage end in a shrinkage shape, and the positioning mechanism comprises a plurality of positioning clamping grooves concavely arranged on the bottom wall of the mounting groove and positioning protrusions correspondingly arranged at the bottom end of the shrinkage end of the adjusting limiting piece; the positioning clamping grooves are arranged in the mounting grooves in an arc shape; and the adjusting limiting piece is configured to enable the positioning protrusion to be in extrusion fit with the bottom wall of the mounting groove.

7. The handrail of claim 1, wherein: and in the horizontal supporting position, the rear end of the armrest panel is provided with a backward inclined supporting body which inclines backward and downward.

8. A seat, characterized in that: comprising a back assembly, a seat assembly, and an armrest as claimed in any one of claims 1 to 7; the bottom end of the supporting main body is connected with the side end of the seat assembly; and the chair back component can perform backward rotation relative to the chair seat component.

9. The seat according to claim 8, wherein: the armrest panel is provided with a backward tilting use position which is rotated by 180 degrees from a horizontal support position relative to the support main body, the first rotating inclined plane is still matched with the second rotating inclined plane in the backward tilting use position, and the armrest support surface at the top end of the armrest panel is in a front-high back-bottom state while the armrest panel rotates backward.

10. The seat according to claim 9, wherein: and a sliding adjusting mechanism is arranged between the handrail panel and the rotary connecting piece and is configured to enable the handrail panel to slide along the length direction of the handrail panel relative to the rotary connecting piece.

11. The seat according to claim 8, wherein: the armrest panel also has a centered diagonal support position that deflects from the horizontal support position toward the center of the seat; and the armrest panel is in a central inclined supporting position, the armrest supporting surface of the armrest panel is in an inclined state, and the height of the outer side end of the armrest panel is higher than the height of the inner side end of the armrest panel.