An adjustable self-gravity hugging support seat

Abstract

The present invention discloses an adjustable self-gravity hugging support seat, which includes a seat board, a seat board height adjustment component, a hugging support palm component and a hugging support horizontal distance adjustment component; the seat board is connected to the seat board height adjustment component, and the vertical distance between the seat board and the hugging support palm is adjusted through the seat board height adjustment component; a seat board-hugging support linkage component is arranged between the seat board height adjustment component and the hugging support palm component, and the hugging support palm component is driven to move horizontally relative to each other through the seat board-hugging support linkage component during the descending process of the seat board, so as to realize the self-gravity hugging support for the human body's waist and back; the hugging support horizontal distance adjustment component is in limit cooperation with the hugging support palm component and is used for controlling the horizontal movement distance of the hugging support palm component; the structure of the present invention is reasonably designed, which can meet the needs of people with different heights, weights and body shapes. In addition, it can also be adjusted in mode to meet the use requirements in different occasions.

Description

Technical Field

[0001] The present invention relates to the technical field of supporting seats, and particularly relates to an adjustable self-gravity supporting seat. Background Art

[0002] The self-gravity supporting seat converts the human body's self-gravity into the supporting force for the human body's waist and back. At present, there are relatively few types of self-gravity supporting seats on the market, and generally a link transmission mechanism is used to achieve the force conversion; the link transmission mechanism has a simple structure and is easy to implement, but the adjustment of the link transmission mechanism is difficult. Therefore, the functions of existing self-gravity supporting seats are often relatively single and cannot meet the usage requirements of different people and different occasions. Therefore, it is urgent to improve and perfect the functions of the supporting seat. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention provides an adjustable self-gravity supporting seat with reasonable structural design and diverse functions.

[0004] The technical solution of the present invention is as follows:

[0005] An adjustable self-gravity supporting seat includes a seat board, a seat board height adjustment component, a supporting palm component, and a supporting horizontal distance adjustment component; the seat board is connected to the seat board height adjustment component, and the vertical distance between the seat board and the supporting palm is adjusted through the seat board height adjustment component; a seat board - supporting linkage component is arranged between the seat board height adjustment component and the supporting palm component, and during the descent of the seat board, the supporting palm component is driven to move horizontally relative through the seat board - supporting linkage component to achieve the self-gravity support for the human body's waist and back; the supporting horizontal distance adjustment component is in limit cooperation with the supporting palm component to control the horizontal movement distance of the supporting palm component.

[0006] Further, the seat board height adjustment component includes a seat board support member and a seat board lifting adjustment mechanism. The seat board support member is connected to the seat board, and the seat board lifting adjustment mechanism is connected to the seat board support member. The seat board support member is driven to lift through the seat board lifting adjustment mechanism, thereby realizing the adjustment of the seat board height.

[0007] Further, the seat board - supporting linkage component includes a vertical support member, a horizontal connecting member, and a V-shaped sliding member; the V-shaped sliding member is connected to the supporting palm component, and the vertical support member is fixedly connected to the V-shaped sliding rail through the horizontal connecting member. Driven by the vertical support member, the V-shaped sliding member drives the supporting palm component to move horizontally.

[0008] Further, the supporting palm component includes a supporting sliding member, a supporting arm, and a supporting palm. One end of the supporting arm is connected to the supporting sliding member, and the other end is connected to the supporting palm. A pair of supporting palms are driven to move relative through the seat board - supporting linkage component to achieve clamping.

[0009] Further, the horizontal distance adjustment component of the supporting bracket includes a limiting member and a limiting member driving mechanism. Under the action of the limiting member driving mechanism, the limiting member is driven to move. After the supporting bracket palm component contacts the limiting member, it is blocked by the limiting member, thereby realizing the control of the horizontal displacement distance of the supporting bracket palm component.

[0010] An adjustable self-gravity supporting bracket seat further includes a decoupling mechanism for the supporting bracket palm component. The decoupling mechanism for the supporting bracket palm component includes a decoupling sliding member, a decoupling connecting member, and a decoupling driving member. The decoupling sliding member corresponds to the supporting sliding member one by one, and the supporting sliding member and the decoupling sliding member are connected by the decoupling connecting member. The decoupling driving member is connected to the decoupling connecting member. By driving the decoupling connecting member with the decoupling driving member, the connection between the supporting sliding member and the decoupling sliding member is disengaged.

[0011] An adjustable self-gravity supporting bracket seat further includes a mode switching mechanism. The mode switching mechanism includes a seat plate limiting member and a seat plate locking member. The seat plate limiting member is arranged on the seat plate-supporting bracket linkage component, and the seat plate locking member is arranged on the bottom plate. A mode switching button member is provided on the seat plate locking member. The seat plate locking member is arranged at the corresponding position below the seat plate limiting component. The seat plate limiting member is inserted into the seat plate locking member, and the seat plate locking member is driven to move by the mode switching button member, thereby realizing the limiting cooperation between the seat plate limiting member and the seat plate locking member.

[0012] Further, the seat plate lifting and lowering adjustment mechanism adopts a screw rod lifting and lowering mechanism, including a screw rod member and a nut member. The nut member is fixedly arranged on the seat plate-supporting bracket linkage component. One end of the screw rod member is connected with the seat plate support member in a limited and movable manner. By rotating the screw rod member, the screw rod member performs a lifting and lowering action relative to the nut member during the rotation process.

[0013] Further, the limiting member driving mechanism adopts a worm and worm gear mechanism, including a worm wheel, a worm, and a gear. The worm is meshed with the worm wheel, the worm wheel is coaxially arranged with the gear, and the gear is meshed with a pair of the limiting members.

[0014] The working process of an adjustable self-gravity supporting bracket seat includes the following steps:

[0015] 1) Relative height adjustment between the seat plate and the supporting bracket palm:

[0016] By adjusting the seat plate lifting and lowering adjustment mechanism to drive the seat plate support member to perform a lifting and lowering action, thereby driving the adjustment of the seat plate height. During the adjustment of the seat plate height, the supporting bracket palm component remains stationary, and further, the relative height adjustment between the seat plate and the supporting bracket palm is realized to adapt to passengers of different heights;

[0017] 2) Horizontal distance limiting adjustment between the supporting bracket palms:

[0018] Driven by the limiting member driving mechanism, the limiting member moves relatively, thus occupying part of the moving space within the horizontal linear movement range of the supporting sliding member. After the supporting sliding member contacts the limiting member, it cannot move further, thereby realizing the adjustment of the horizontal distance between the supporting palms to adapt to passengers of different body sizes;

[0019] 3) Release of the support adjustment of the supporting palms:

[0020] Driven by the hook release driving member, the hook release connecting member acts, causing the separation between the supporting sliding member and the hook release sliding member. Before the passenger stands up or when the support is not needed, the supporting state of the supporting palms can be actively released;

[0021] 4) Mode switching of the supported seat:

[0022] Through the mode switching button member, the limiting cooperation between the seat board limiting member and the seat board locking member is realized, thereby controlling that the seat board - support linkage assembly cannot be reset. After the passenger stands up, the seat board remains fixed, making the supported seat become a seat without the support function.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1) By setting the seat board height adjustment component, the distance between the seat board and the supporting palms can be adjusted to meet the usage requirements of people of different heights.

[0025] 2) By setting the supporting horizontal distance adjustment component, the distance between the supporting palms can be adjusted to meet the usage requirements of people of different body sizes.

[0026] 3) By setting the decoupling mechanism of the supporting palm assembly, the separation between the supporting palm assembly and the seat board - support seat board - support linkage assembly can be realized to meet the independent control of the support function.

[0027] 4) By setting the mode switching mechanism, the switching between the supported seat and the ordinary seat can be realized to meet the usage requirements of different occasions.

[0028] 5) The structure of the present invention is reasonably designed, which can meet the needs of people of different heights, body sizes and shapes. In addition, it can also be adjusted in mode to meet the usage requirements of different occasions. Brief Description of the Drawings

[0029] Figure 1 is the front structural schematic diagram of the present invention;

[0030] Figure 2 is the back structural schematic diagram of the present invention;

[0031] Figure 3 is the sectional structural schematic diagram of the present invention;

[0032] Figure 4Schematic structural diagram of the seat board - support linkage component of the present invention;

[0033] Figure 5 Schematic structural diagram of the support horizontal distance adjustment component of the present invention;

[0034] Figure 6 Schematic structural diagram of the decoupling mechanism of the support palm component of the present invention;

[0035] Figure 7 Schematic connection diagram of the decoupling slider and the support slider of the present invention;

[0036] Figure 8 Schematic connection diagram of the horizontal rod member of the present invention;

[0037] Figure 9 Schematic structural diagram of the mode switching mechanism of the present invention;

[0038] Figure 10 Schematic structural diagram of the limit protection member of the present invention;

[0039] In the figure: 1. Seat board; 2. Seat board height adjustment component; 3. Support palm component; 4. Seat board - support linkage component; 5. Decoupling mechanism of the support palm component; 6. Support spring; 7. Bottom plate; 8. Mode switching mechanism; 9. Support horizontal distance adjustment component; 10. Support automatic spring - opening mechanism. Detailed implementation manners

[0040] The present invention will be further described below in conjunction with the accompanying drawings of the specification.

[0041] As Figure 1-10 shown, an adjustable self - gravity support seat includes a seat board 1, a seat board height adjustment component 2, a support palm component 3, a support horizontal distance adjustment component 9, a seat board - support linkage component 4, a decoupling mechanism 5 of the support palm component, a mode switching mechanism 8, and a bottom plate 7.

[0042] The seat board height adjustment assembly 2 includes a seat board support member 201, a lead screw member 202 and a nut member 203; the seat board 1 is arranged on the seat board support member 201, the nut member 203 is fixedly arranged on the seat board - support linkage assembly 4, one end of the lead screw member 202 is connected to the seat board support member 201 through a bearing, the other end of the lead screw member 202 passes through the nut member 203, and a manual adjustment device is arranged at its end. The manual adjustment device includes a pulley 204, a handwheel and a transmission belt; the pulley 204 is arranged on a fixed bracket at the top of the bottom plate 7, the pulley 204 is fixed and immovable, a sliding groove is arranged on the lead screw member 202, and it is slidably matched with the key on the pulley 204; the handwheel is arranged on the seat shell, the handwheel drives the pulley 204 to rotate, the pulley 204 drives the lead screw member 202 to rotate. Since the nut member 203 is fixed and immovable, the lead screw member 202 will perform a lifting action while rotating, thereby driving the seat board support member 202 and the seat board 1 connected to the seat board support member 202 to lift, realizing the height adjustment of the seat board 1. Adjusting the height of the seat board 1 can control the distance between the seat board 1 and the support palm 303 to adapt to people with different height ratios.

[0043] The seat board - support linkage assembly 4 includes a vertical support member, a horizontal connecting member 401 and a herringbone sliding member; the vertical support member includes a support base 405, a support sleeve 402, a sliding sleeve 401 and a support spring 6. The support sleeve 402 is slidably matched with the support base 405, the sliding sleeve 401 is fixedly connected to the support sleeve 402, the nut member 203 is fixedly arranged in the support sleeve 402, the seat board support member 201 is arranged in the sliding sleeve 401, and the seat board support member 201 is slidably matched with the sliding sleeve 401; the support spring 6 is arranged between the horizontal connecting member 401 and the support base 405 and is located outside the support base 405 and the support sleeve 402; one end of the horizontal connecting member 401 is fixedly connected to the support sleeve 402, and the other end is fixedly connected to the herringbone sliding member. The herringbone sliding member includes a herringbone slide rail 403 and a linkage slider 404 arranged on the herringbone slide rail 403.

[0044] It should be noted that when the seat board height adjustment assembly is not adjusted: the support sleeve 402, the sliding sleeve 401, the horizontal connecting member 401, the herringbone sliding member, the seat board support member 201 and the seat board 1 are an integral whole. The elastic coefficient of the support spring 6 is set to meet the requirements of a rider weighing 100 - 200 catties, and it can be completely compressed in place to ensure that when people of different weights ride, the seat board 1 drops by the same height.

[0045] The support palm assembly 3 includes a support sliding member, a support arm 302 and a support palm 303. The support sliding member includes a support slide rail 305 and a support slider 301 arranged on the support slide rail 305. One end of the support arm 302 is connected to the support slider 305, and the other end is connected to the support palm 303.

[0046] In order to facilitate the rider to stand up or not use the supporting function, the supporting function needs to be independently controlled. In this embodiment, a decoupling mechanism 5 for the supporting palm assembly is also provided. The decoupling mechanism 5 for the supporting palm assembly includes a decoupling sliding member, a decoupling connecting member and a decoupling driving member. The decoupling sliding member includes a decoupling slide rail 502 and a decoupling slider 501 provided on the decoupling slide rail 502. The linkage slider 404 of the chevron-shaped sliding member is fixedly connected to the decoupling slider 501. The supporting slider 301 is connected to the decoupling slider 501 through a decoupling connecting member. The decoupling connecting member includes a decoupling member 505 and a spring member (not shown in the figure). The decoupling member 505 is inserted through the supporting slide rail 301 and the decoupling slider 501. The spring member is arranged inside the decoupling member 505 and is limited on the decoupling slider 501. The decoupling member 505 is connected to the decoupling driving assembly. One end of the decoupling member 505 adopts a wedge-shaped structure, and the other end is provided with a through hole for the decoupling driving member to pass through. The decoupling driving member includes a linkage block 501 and a horizontal rod 503. The linkage block 501 is fixedly arranged at the middle position of the horizontal rod 503. The two ends of the horizontal rod 503 are respectively slidably connected to the decoupling member 505 (that is, the horizontal rod 503 is inserted into the through hole of the decoupling member 505. When the decoupling member 505 moves together with the decoupling slider 501 and the supporting slider 301, the decoupling member 505 can slide on the horizontal rod 503). A pull rope is provided on the linkage block 501. One end of the pull rope is connected to the linkage block 501, and the other end bypasses a reversing fixed pulley and is connected to a hand-operated roller. The hand-operated roller is arranged on the seat shell.

[0047] In order to enable the supporting slider 301 and the decoupling slider 501 to quickly bounce off after being disconnected, the present invention provides a supporting automatic bounce-off mechanism 10. The supporting automatic bounce-off mechanism 10 includes a tension spring 1001, a fixed pulley member 1003 and a cable 1002. The two ends of the tension spring 1001 are respectively provided with a cable 1002. One end of the cable 1002 is connected to the tension spring 1001, and the other end bypasses the fixed slider member 1003 and is respectively fixed on the supporting slide rail 301 or the supporting arm 302. The fixed pulley member 1003 is fixed on the seat shell. In this way, when the supporting palm 303 is in the supporting state, the tension spring 1001 is in a stretched state. After the supporting slide rail 301 is disconnected from the hook slider 501, the tension spring 1001 can drive the supporting slide rail 301 to automatically bounce off.

[0048] The holding support horizontal distance adjustment component includes a limiting member and a limiting member driving mechanism. The limiting member uses a rack 904, and the limiting member driving mechanism uses a worm and worm gear mechanism, including a worm gear 902 and a worm 901. The worm gear 902 is meshed with the worm 901. A gear 903 is coaxially arranged on the worm gear 902 and is meshed with a pair of racks 904 to control the relative movement of the racks 904. The racks 904 and the hook release slider 501 are at the same horizontal height. After the hook release slider 501 contacts the racks 904, the hook release slider 501 cannot drive the holding support slider 301 to continue moving (the worm gear cannot drive the worm to move), realizing the adjustment of the horizontal displacement distance of the holding support palm. Thus, the holding support force for people with different body builds can be adjusted; an adjustment wheel 905 is provided on the worm 901. When adjusting the holding support horizontal distance, by means of a toggle roller arranged on the seat shell, the adjustment wheel 905 is driven to rotate, thereby driving the worm 901 to rotate, realizing the adjustment of the worm and worm gear mechanism and the rack and pinion mechanism.

[0049] In this embodiment, in order to make the present invention become an ordinary seat, a mode switching mechanism 8 is further provided. The mode switching mechanism 8 includes a seat plate limiting member and a seat plate locking member.

[0050] The seat plate limiting member is arranged on the horizontal connecting plate 401 of the seat plate - holding support linkage assembly 4, and the seat plate locking member is arranged on the bottom plate 7. A mode switching button member is provided on the seat plate locking member. The seat plate locking member is arranged at the corresponding position below the seat plate limiting member. The seat plate limiting member is inserted into the seat plate locking member, and the limiting cooperation between the seat plate limiting member and the seat plate locking member is realized through the mode switching button member.

[0051] Specifically, the seat plate limiting member is in an F shape and includes a limiting hook-shaped member 801 (L-shaped) and a limiting plate member 807 (linear-shaped) arranged on the limiting hook-shaped member 801. The seat plate locking member includes a support plate 803 and a sliding piece 802. The sliding piece 802 is slidably matched with the support plate 803. A notch for the seat plate limiting member to penetrate is provided at the position corresponding to the seat plate limiting member on the sliding piece 802; the limiting hook-shaped member 801 passes through the notch 804 on the sliding piece 802, and by moving the sliding piece 802, the position of the notch 804 is changed, so that the limiting hook-shaped member 801 is limited below the sliding piece 802.

[0052] To prevent misoperation and avoid collision between the seat board limiting member and the sliding piece 802, which may cause damage to the seat, the seat board locking member further includes a limit protection member. The limit protection member includes a rotating seat 805 and a limit rod member 506. The limit rod member 806 is movably arranged on the rotating seat 805, and one end of the limit rod member 806 is in limit cooperation with the sliding piece 802. A notch is provided at the corner of the sliding piece 802, corresponding to one end of the limit rod member 806. A limit plate member 807 is arranged directly above the limit rod member 806. During the downward movement of the seat board - supporting linkage assembly 4, the limit plate member 807 can press on the other end of the limit rod member 806, thereby releasing the limit state between one end of the limit rod member 806 and the sliding piece 802.

[0053] The mode switching button member includes a switch pull rope and a sliding switch. The switch pull ropes are respectively arranged at both ends in the sliding direction of the sliding piece 802. One end of the switch pull rope is connected to one end of the sliding piece 802, and the other end of the switch pull rope is connected to one end of the sliding switch. By driving the switch pull rope through the sliding switch, the switch pull rope drives the sliding piece 802 to move left and right. If there is no occupant on the seat board, the limit rod member 806 is in limit cooperation with the notch at the corner of the sliding piece 802, and the sliding switch 802 cannot slide. Only when the seat board descends to the lowest position under the action of the self - gravity of the occupant, the limit plate member 807 presses on one end of the limit rod member 806, releasing the limit state between one end of the limit rod member 806 and the sliding piece 802, can the sliding piece 802 be driven to move left and right through the sliding switch.

[0054] Working principle:

[0055] The adjustable self - gravity supporting seat of the present invention is provided with four adjustment functions on the basis of self - gravity support, namely, seat board height adjustment, supporting palm horizontal adjustment, supporting palm assembly unhooking adjustment, and seat mode switching adjustment.

[0056] The seat board height adjustment and supporting palm horizontal adjustment functions are for people of different heights and body types to meet the requirements of the vast majority of people.

[0057] When adjusting the seat board height, by turning the seat board adjustment handwheel on the seat shell, the rotation of the screw member is driven, thereby adjusting the height position of the top of the screw member and realizing the adjustment of the seat board height. Since the height of the supporting palm is fixed in this embodiment, the distance between the seat board and the supporting palm can be adjusted to ensure that the supporting position between the seat board and the supporting palm can be at the waist and back when different height people are sitting. It should be noted that it is also within the protection scope of the present invention to fix the seat board and adjust the height of the supporting palm to realize the adjustment of the distance between the seat board and the supporting palm.

[0058] When the holding support palm is adjusted horizontally, by turning the holding support adjusting handwheel on the seat shell, the worm is driven to rotate. The worm drives the worm wheel, and the worm wheel drives the gear to rotate synchronously, thereby adjusting and controlling the relative movement of the rack. When the distance between the outer ends of a pair of racks is the farthest, the holding distance between the holding support palms is the largest, and vice versa, so as to actively adjust the holding force for people of different body sizes when sitting.

[0059] When the holding support palm assembly is adjusted for unhooking, the holding support palm is in the tightened state. When the rider needs to stand up or does not use the holding support function, by turning the unhooking adjusting handwheel on the seat shell, the linkage block connected to the pulling rope is driven. The linkage block drives the horizontal rod, and the horizontal rod drives the unhooking member to move downward, so that the holding support slider and the unhooking slider are disengaged, and the linkage relationship between the holding support palm assembly and the seat board - holding support linkage assembly is released, realizing the unhooking of the holding support palm assembly.

[0060] When adjusting the switching of the seat mode, a rider needs to sit on the seat board. At this time, by pushing the sliding switch on the seat shell, the limiting hook - shaped part is limited below the sliding piece, so that the seat board cannot be reset by the return spring. After the holding support is released, the seat is switched to an ordinary seat.

Claims

1. An adjustable self-gravity hugging support seat, characterized in that, it includes a seat board, a seat board height adjustment component, a hugging support palm component and a hugging support horizontal distance adjustment component; the seat board is connected to the seat board height adjustment component, and the vertical distance between the seat board and the hugging support palm is adjusted through the seat board height adjustment component; a seat board-hugging support linkage component is arranged between the seat board height adjustment component and the hugging support palm component, and during the descent of the seat board, the hugging support palm component is driven to move horizontally relative through the seat board-hugging support linkage component, so as to realize the self-gravity hugging support for the human body's waist and back; the hugging support horizontal distance adjustment component is in limit cooperation with the hugging support palm component, and is used to control the horizontal movement distance of the hugging support palm component; the seat board height adjustment component includes a seat board support member and a seat board lifting adjustment mechanism, the seat board support member is connected to the seat board, the seat board lifting adjustment mechanism is connected to the seat board support member, and the seat board support member is driven to lift through the seat board lifting adjustment mechanism, so as to realize the adjustment of the seat board height; the seat board-hugging support linkage component includes a vertical support member, a horizontal connecting member and a V-shaped sliding member; the V-shaped sliding member is connected to the hugging support palm component, the vertical support member is fixedly connected to the V-shaped sliding rail through the horizontal connecting member, and under the drive of the vertical support member, the V-shaped sliding member drives the hugging support palm component to move horizontally; the hugging support horizontal distance adjustment component includes a limiting member and a limiting member driving mechanism, and under the action of the limiting member driving mechanism, the limiting member is driven to move. After the hugging support palm component contacts the limiting member, it is blocked by the limiting member, so as to realize the control of the horizontal displacement distance of the hugging support palm component.

2. The adjustable self-gravity hugging support seat according to claim 1, characterized in that, the hugging support palm component includes a hugging support sliding member, a hugging support arm and a hugging support palm. One end of the hugging support arm is connected to the hugging support sliding member, and the other end is connected to the hugging support palm. A pair of hugging support palms are driven to move relative through the seat board-hugging support linkage component to realize clamping.

3. The adjustable self-gravity hugging support seat according to claim 2, characterized in that, it further includes a decoupling mechanism for the hugging support palm component. The decoupling mechanism for the hugging support palm component includes a decoupling sliding member, a decoupling connecting member and a decoupling driving member. The decoupling sliding member corresponds to the hugging support sliding member one by one, and the hugging support sliding member and the decoupling sliding member are connected through the decoupling connecting member. The decoupling driving member is connected to the decoupling connecting member, and the decoupling connecting member is driven to act through the decoupling driving member, so that the connection between the hugging support sliding member and the decoupling sliding member is disengaged.

4. The adjustable self-gravity hugging support seat according to claim 1, characterized in that, it further includes a mode switching mechanism. The mode switching mechanism includes a seat board limiting member and a seat board locking member. The seat board limiting member is arranged on the seat board-hugging support linkage component, the seat board locking member is arranged on the bottom board, a mode switching button member is arranged on the seat board locking member, the seat board locking member is arranged at the corresponding position below the seat board limiting component, the seat board limiting member is inserted into the seat board locking member, and the seat board locking member is driven to move through the mode switching button member, so as to realize the limit cooperation between the seat board limiting member and the seat board locking member.

5. An adjustable self-gravity hugging support seat according to claim 1, characterized in that, the seat board lifting and adjusting mechanism adopts a screw rod lifting mechanism, including a screw rod member and a nut member. The nut member is fixedly arranged on the seat board-hugging support linkage assembly. One end of the screw rod member is in limit movable connection with the seat board support member. By rotating the screw rod member, the screw rod member performs a lifting action relative to the nut member during the rotation process.

6. An adjustable self-gravity hugging support seat according to claim 1, characterized in that, the limiting member driving mechanism adopts a worm and worm gear mechanism, including a worm wheel, a worm and a gear. The worm is meshed with the worm wheel, the worm wheel is coaxially arranged with the gear, and the gear is meshed with a pair of the limiting members.

7. The working process of an adjustable self-gravity hugging support seat, characterized in that, comprises the following steps: 1) Relative height adjustment between the seat board and the hugging support palm: By adjusting the seat board lifting and adjusting mechanism to drive the seat board support member to perform a lifting action, thereby driving the adjustment of the height of the seat board. During the adjustment of the height of the seat board, the hugging support palm assembly remains stationary, so as to realize the relative height adjustment between the seat board and the hugging support palm to adapt to passengers of different heights; 2) Horizontal distance limit adjustment between the hugging support palms: By driving the limiting members to perform relative movement through the limiting member driving mechanism, thereby occupying part of the movement space within the horizontal linear movement range of the hugging support sliding member. The hugging support sliding member cannot continue to move after contacting the limiting members, so as to realize the adjustment of the horizontal distance between the hugging support palms to adapt to passengers of different body builds; 3) Hugging support release adjustment of the hugging support palms: By driving the hook release connecting member to act through the hook release driving member, so that the hugging support sliding member and the hook release sliding member are separated. Before the passenger stands up or when no hugging support is needed, the hugging support state of the hugging support palms can be actively released; 4) Mode switching of the hugging support seat: By the mode switching button member, the limiting cooperation between the seat board limiting member and the seat board locking member is realized, so as to control that the seat board-hugging support linkage assembly cannot be reset. After the passenger stands up, the seat board remains stationary, making the hugging support seat become a seat without hugging support function.

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