High-stability reclining chair sliding adjusting device

Abstract

The utility model relates to the technical field of reclining chair adjusting equipment, in particular to a high-stability reclining chair sliding adjusting device which comprises an adjusting structure, a backrest, a back plate and a top plate, the top plate is slidably connected to the adjusting structure, the backrest is hinged to the top plate, the backrest and the back plate are arranged in a relatively sliding mode, and the adjusting structure comprises a support, a sliding rail and a pulley block. A sliding rail is fixedly connected to the support, a sliding vertical rod and a sliding transverse rod are slidably connected to the sliding rail through a pulley block, the sliding vertical rod and the sliding transverse rod are fixedly connected, a motor fixing rod is fixedly connected to the center of the support, a motor fixing piece is fixedly connected to the motor fixing rod, and a motor is installed on the motor fixing piece. The motor drives the motor connecting piece to move through driving, the motor is driven through the lead screw, and a sliding transverse rod is fixedly connected to the motor connecting piece. And by arranging the adjusting structure, the sliding adjustment work of the high-stability deck chair is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of recliner adjustment devices, and more specifically to a highly stable sliding adjustment device for a recliner. Background Art

[0002] A recliner is a reclining chair that is designed to be folded using the principle of joint movement and can be folded and stored through various folding methods. It is convenient and practical, and easy to store. Currently, recliners are adjusted and controlled through a sliding adjustment device for folding and unfolding operations.

[0003] According to Chinese Patent Publication No. CN202636199U, which relates to a sliding adjustment device for a recliner, including a bracket, a slide rail, a pulley set, a sliding vertical rod, a sliding cross rod, and a motor. The slide rail is installed on both sides of the bracket. The sliding vertical rod and the sliding cross rod are connected to form a sliding frame. The sliding vertical rod is installed on the slide rail through the pulley set. The motor is installed on the bracket. The motor connecting piece is fixedly connected to the sliding frame. A planar drive pair is installed on the sliding frame. The planar drive pair is respectively rotatably connected to one end of a drive connecting piece. The other end of the drive connecting piece is respectively fixedly connected to a drive tube. Both ends of the drive tube are respectively fixedly connected to one end of a drive side tube. The other end of the drive side tube is respectively rotatably connected to one end of a drive piece. The other end of the drive piece is respectively fixedly connected to one end of a drive limiting piece through a fixed shaft. The fixed shaft is installed on both sides of the rear end of the bracket. The other end of the drive limiting piece is in limit cooperation with the rear end of the bracket. The drive connecting piece is respectively fixedly connected to the drive side tube. This utility model is simple and convenient, occupies little space, and has strong arbitrariness.

[0004] Currently, the existing sliding adjustment devices for recliners and the above-mentioned case often show instability during specific use due to time issues, which affects the subsequent normal use of the recliner. Therefore, it is necessary to reinforce the sliding adjustment device for the recliner, and thus improvements are made to address the above problems. Summary of the Utility Model

[0005] In view of the problems in the prior art, the present invention provides a highly stable sliding adjustment device for a recliner.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a highly stable sliding adjustment device for a recliner, including an adjustment structure, a backrest, a back panel, and a top panel. The top panel is slidably connected to the adjustment structure, and a backrest is hinged on the top panel. The backrest and the back panel are relatively slidably arranged;

[0007] The adjustment structure includes a bracket, a slide rail, and a pulley set. A slide rail is fixedly connected to the bracket. A sliding vertical rod and a sliding horizontal rod are slidably connected to the slide rail through the pulley set. The sliding vertical rod and the sliding horizontal rod are fixedly connected. A motor fixing rod is fixedly connected to the center of the bracket. A motor fixing piece is fixedly connected to the motor fixing rod. A motor is installed on the motor fixing piece. The motor drives the motor connecting piece to move through a drive, and the motor is driven by a lead screw. A sliding horizontal rod is fixedly connected to the motor connecting piece. A planar drive pair is fixedly connected to the rear end of the sliding vertical rod. A drive connecting piece is hinged to the planar drive pair. A backrest support rod is hinged to the center of the drive connecting piece. A backrest link is hinged to the upper end of the backrest support rod. An insertion piece is fixedly connected to the backrest link. A drive piece is hinged to the rear end of the backrest link. Through the setting of the adjustment structure, the top plate can be moved. At the same time, a backrest is hinged on the top plate, which can drive the backrest to move synergistically. And the backrest slides and is limited on the back panel, so as to adjust the backrest through the backrest. The backrest adopts a quadrilateral structure. After being soft-packed, the backrest always maintains a certain distance from the wall during the operation of the mechanism, and will not have too large or too small a distance from the wall. After being integrally soft-packed, it can be directly against the wall, and the backrest can be laid flat to increase the container loading capacity for convenient transportation. In the traditional mechanism, the distance between the backrest and the seat cushion changes greatly during movement, and there will be a large gap in the middle. The quadrilateral structure of the backrest will prevent the soft-packed backrest and the seat cushion from having a large gap during movement, and the seat cushion and the backrest always remain in contact. It can be disassembled and transported to increase the container loading capacity and reduce the transportation cost.

[0008] Specifically, a limit piece is hinged to the lower end of the drive piece. The limit piece is fixedly connected to the rear end of the slide rail. And the motor is fixedly connected at the bottom through a motor fixing welding piece. A synchronous rod is fixedly connected to one end of the drive connecting piece that opens the backrest support rod. KD insertion pieces are provided at the symmetric positions of the insertion piece.

[0009] Specifically, the sliding vertical rod and the sliding horizontal rod slide and adjust on the slide rail. And the sliding vertical rod drives the drive connecting piece to displace through the planar drive pair. The drive piece is hinged to the bottom of the slide rail through the limit piece.

[0010] Specifically, the backrest support rod, the drive piece, the drive connecting piece, and the backrest link form a quadrilateral structure. And the upper ends of the insertion piece and the KD insertion piece are fixedly connected to the backrest.

[0011] Specifically, the synchronous rod connects the drive connecting pieces on both sides. The drive connecting pieces at both positions operate and adjust synchronously. The planar drive pair drives the drive piece and the backrest support rod to deform and adjust through the drive connecting piece.

[0012] Specifically, the upper ends of the sliding vertical rod and the sliding horizontal rod are fixedly connected to the top plate. The back panel is fixedly connected to the rear end of the bracket.

[0013] Specifically, a reinforcement support structure is installed on the backrest. The lower end of the reinforcement support structure is hinged to the sliding vertical rod. The reinforcement support structure moves synchronously with the top plate. Through the structural arrangement of the reinforcement support structure, the stability performance of the backrest can be improved, making the connection between the backrest and the top plate closer. When the backrest and the top plate move relative to each other, the hydraulic telescopic rod can cooperate for stretching adjustment at this time, thereby improving the structural support stability performance. The second fitting frame is fixed to the backrest, and the first hinge ring is fixed to the sliding vertical rod, thus facilitating combined connection and improving the stability during overall movement adjustment.

[0014] Specifically, the reinforcement support structure includes a first hinge ring, a first fitting frame, a hydraulic telescopic rod, a second hinge ring, and a second fitting frame. The first fitting frame is hinged with the first hinge ring. The first hinge ring is installed with a hydraulic telescopic rod. The upper end of the hydraulic telescopic rod is fixedly connected with the second hinge ring. The center of the second hinge ring is hinged with the second fitting frame.

[0015] Specifically, the first fitting frame is fixedly connected with the sliding vertical rod, and the second fitting frame is fixedly connected with the backrest.

[0016] Specifically, the reinforcement support structures are symmetrically arranged with respect to the top plate, and both the reinforcement support structures on both sides support the backrest.

[0017] Advantages of the present invention:

[0018] First, through the arrangement of the adjustment structure of the present invention, the top plate can be moved. At the same time, the backrest is hinged on the top plate, which can drive the backrest to move synchronously. And the backrest is limited to slide on the backboard, so as to adjust the backrest through the backrest. The backrest adopts a quadrilateral structure. After being soft-packed, when the mechanism operates, the backrest always maintains a certain distance from the wall, and will not be too large or too small from the wall. After being overall soft-packed, it can be directly against the wall, and the backrest can be laid flat to improve the container loading capacity for convenient transportation. In the traditional mechanism, the distance between the backrest and the seat cushion will change greatly during movement, and there will be a large gap in the middle. The quadrilateral structure of the backrest will make there be no large gap between the soft-packed backrest and the seat cushion during movement, and the seat cushion and the backrest always remain in contact. It can be disassembled for transportation to increase the container loading capacity and reduce the transportation cost.

[0019] Second, through the structural arrangement of the reinforcement support structure of the present invention, the stability performance of the backrest can be improved, making the connection between the backrest and the top plate closer. When the backrest and the top plate move relative to each other, the hydraulic telescopic rod can cooperate for stretching adjustment at this time, thereby improving the structural support stability performance. The second fitting frame is fixed to the backrest, and the first hinge ring is fixed to the sliding vertical rod, thus facilitating combined connection and improving the stability during overall movement adjustment. Description of the drawings

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic three-dimensional structure view of the front view of the first state of the main body in the present invention;

[0022] Figure 2 It is a schematic three-dimensional structure view of the front view of the second state of the main body in the present invention;

[0023] Figure 3 It is a schematic three-dimensional structure view of the front view of the third state of the main body in the present invention;

[0024] Figure 4 It is a schematic three-dimensional structure view of the front view of the first state of the adjustment structure in the present invention;

[0025] Figure 5 It is a schematic three-dimensional structure view of the front view of the second state of the adjustment structure in the present invention;

[0026] Figure 6 It is a schematic three-dimensional structure view of the front view of the third state of the adjustment structure in the present invention;

[0027] Figure 7 It is a schematic three-dimensional structure view of the front view of the second embodiment of the main body in the present invention;

[0028] Figure 8 It is a schematic three-dimensional structure view of the front view of the reinforcement support structure in the present invention.

[0029] In the figure: A1 - adjustment structure, A2 - backrest, A3 - back panel, A4 - top plate, A5 - reinforcement support structure, 1 - bracket, 2 - slide rail, 3 - pulley block, 4 - sliding vertical rod, 5 - sliding cross bar, 6 - motor, 7 - motor fixing rod, 8 - motor fixing piece, 9 - motor fixing welding piece, 10 - motor connecting piece, 11 - planar drive pair, 12 - drive connecting piece, 13 - insert piece, 14 - backrest connecting rod, 15 - drive piece, 16 - limiting piece, 17 - backrest support rod, 18 - synchronizing rod, 19 - KD insert piece, 20 - first hinge ring, 21 - first fitting frame, 22 - hydraulic telescopic rod, 23 - second hinge ring, 24 - second fitting frame. Detailed implementation manners

[0030] In order to enable those skilled in the art of the present technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] As Figures 1-6 shown, a high-stability reclining chair sliding adjustment device of the present invention includes an adjustment structure A1, a backrest A2, a back panel A3, and a top panel A4. The top panel A4 is slidably connected to the adjustment structure A1, and a backrest A2 is hinged on the top panel A4. The backrest A2 and the back panel A3 are relatively slidably arranged. The adjustment structure A1 is used for adjustment so that the backrest A2 and the top panel A4 can move relative to each other, and the back panel A3 performs the bottom support work;

[0033] The adjustment structure A1 includes a bracket 1, a slide rail 2, and a pulley set 3. The slide rail 2 is fixedly connected to the bracket 1. A sliding vertical rod 4 and a sliding cross rod 5 are slidably connected to the slide rail 2 through the pulley set 3. The sliding vertical rod 4 and the sliding cross rod 5 are fixedly connected. A motor fixing rod 7 is fixedly connected to the center of the bracket 1. A motor fixing piece 8 is fixedly connected to the motor fixing rod 7. A motor 6 is installed on the motor fixing piece 8. The motor 6 drives the motor connecting piece 10 to move through driving, and the motor 6 is driven by a lead screw. The sliding cross rod 5 is fixedly connected to the motor connecting piece 10. A planar drive pair 11 is fixedly connected to the rear end of the sliding vertical rod 4. A drive connecting piece 12 is hinged on the planar drive pair 11. A backrest support rod 17 is hinged at the center of the drive connecting piece 12. A backrest link 14 is hinged at the upper end of the backrest support rod 17. A plug piece 13 is fixedly connected to the backrest link 14. A drive piece 15 is hinged at the rear end of the backrest link 14. The bracket 1 and the slide rail 2 in the adjustment structure A1 are fixed. When adjustment is required, the motor 6 at this time drives, which can drive the motor connecting piece 10 to operate. Under the action of the built-in lead screw, the sliding vertical rod 4 and the sliding cross rod 5 are slidably adjusted on the slide rail 2. And the rear end of the sliding vertical rod 4 is fixed to the planar drive pair 11, and the planar drive pair 11 follows for sliding adjustment. When the planar drive pair 11 moves, it can drive the hinged drive connecting piece 12 to move in cooperation, so that while the drive connecting piece 12 stretches, its angle changes. The drive connecting pieces 12 on both sides are connected by a synchronizing rod 18, so that the drive connecting pieces 12 on both sides move synchronously. The upper end of the drive connecting piece 12 is hinged to the backrest support rod 17, and the backrest support rod 17 is hinged to the backrest link 14. The backrest link 14 is hinged to the drive piece 15 for cooperation. The top of the drive connecting piece 12 is hinged to the drive piece 15, forming a quadrilateral structure. When lifting, the size structure of the quadrilateral is changed, so as to drive the backrest A2 to move through the plug piece 13 and the KD plug piece 19. At the same time, when the sliding vertical rod 4 and the sliding cross rod 5 move, they drive the top panel A4 to be slidably adjusted, realizing the relative adjustment of the backrest A2 and the top panel A4.

[0034] The lower end of the driving piece 15 is hinged with a limiting piece 16. The limiting piece 16 is fixedly connected to the rear end of the slide rail 2. And the motor 6 is fixedly fixed at the bottom through the motor fixing solder piece 9. One end of the driving connecting piece 12 that opens the prize is fixedly connected with a synchronizing rod 18. At the symmetric position of the inserting piece 13, there is a KD inserting piece 19. When the planar driving pair 11 moves, it drives the driving connecting piece 12 to stretch towards the left side, causing the backrest support rod 17 to deform and flip towards the left side position. Then, the backrest connecting rod 14 is lifted, causing the backrest connecting rod 14 to rotate accordingly. The backrest connecting rod 14 flips towards the right side. At this time, the driving piece 15 is stretched and flipped to the left through the limiting piece 16. When the backrest connecting rod 14 moves, it drives the inserting piece 13 and the KD inserting piece 19 to run synchronously, so as to achieve the purpose of power transmission and assist in the adjustment work of the reclining chair.

[0035] The sliding vertical rod 4 and the sliding cross rod 5 slide and adjust on the slide rail 2. And the sliding vertical rod 4 drives the displacement of the driving connecting piece 12 through the planar driving pair 11. The driving piece 15 is hinged to the bottom of the slide rail 2 through the limiting piece 16.

[0036] The backrest support rod 17, the driving piece 15, the driving connecting piece 12, and the backrest connecting rod 14 form a quadrilateral structure. And the upper ends of the inserting piece 13 and the KD inserting piece 19 are fixedly connected to the backrest A2.

[0037] The synchronizing rod 18 connects the driving connecting pieces 12 on both sides. The driving connecting pieces 12 at both side positions run synchronously for adjustment. The planar driving pair 11 drives the deformation adjustment of the driving piece 15 and the backrest support rod 17 through the driving connecting piece 12.

[0038] The upper ends of the sliding vertical rod 4 and the sliding cross rod 5 are fixedly connected to the top plate A4. The back plate A3 is fixedly connected to the rear end of the bracket 1.

[0039] The working principle is as follows: During use, the adjustment structure A1 is used for adjustment so that the backrest A2 and the top plate A4 can move relative to each other, and the back panel A3 provides bottom support. The bracket 1 in the adjustment structure A1 is fixed to the slide rail 2. When adjustment is required, the motor 6 is driven at this time, which can drive the motor connecting piece 10 to operate. Under the action of the built-in lead screw, the sliding vertical rod 4 and the sliding cross rod 5 slide and adjust on the slide rail 2. The rear end of the sliding vertical rod 4 is fixed to the planar drive pair 11, and the planar drive pair 11 follows for sliding adjustment. When the planar drive pair 11 moves, it can drive the articulated drive connecting piece 12 to move in cooperation, so that while the drive connecting piece 12 is stretched, its angle changes. The drive connecting pieces 12 on both sides are connected by the synchronizing rod 18, so that the drive connecting pieces 12 on both sides move synchronously. The upper end of the drive connecting piece 12 is articulated to the backrest support rod 17, and the backrest support rod 17 is articulated to the backrest connecting rod 14. The backrest connecting rod 14 is articulated and cooperates with the drive piece 15. The top of the drive connecting piece 12 is articulated to the drive piece 15, forming a quadrilateral structure. When lifting, the size structure of the quadrilateral is changed, so that the backrest A2 is driven by the insert piece 13 and the KD insert piece 19. At the same time, when the sliding vertical rod 4 and the sliding cross rod 5 move, the top plate A4 is driven for sliding adjustment, realizing the relative adjustment of the backrest A2 and the top plate A4. When the planar drive pair 11 moves, it drives the drive connecting piece 12 to stretch towards the left side, causing the backrest support rod 17 to deform and flip towards the left position. Then, the backrest connecting rod 14 is lifted, causing the backrest connecting rod 14 to rotate accordingly. The backrest connecting rod 14 flips towards the right side. At this time, the drive piece 15 is stretched and flipped to the left through the limit piece 16. When the backrest connecting rod 14 moves, it drives the insert piece 13 and the KD insert piece 19 to run synchronously, so as to achieve the purpose of power transmission and assist in the adjustment work of the reclining chair to complete the work.

[0040] On the basis of Embodiment 1, as Figures 7-8 shown, a reinforcement support structure A5 is installed on the backrest A2. The lower end of the reinforcement support structure A5 is articulated to the sliding vertical rod 4. The reinforcement support structure A5 moves synchronously with the top plate A4. Through the structural setting of the reinforcement support structure A5, the stability performance of the backrest A2 can be improved, making the connection between the backrest A2 and the top plate A4 closer. When the backrest A2 and the top plate A4 move relative to each other, the hydraulic telescopic rod 22 can cooperate for stretching adjustment at this time, thereby improving the structural support stability performance. The second fitting frame 24 is fixed to the backrest A2, and the first articulated ring 20 is fixed to the sliding vertical rod 4, so as to facilitate combined connection and improve the stability during overall movement adjustment.

[0041] The reinforcement support structure A5 includes a first hinge ring 20, a first fitting frame 21, a hydraulic telescopic rod 22, a second hinge ring 23 and a second fitting frame 24. The first fitting frame 21 is hinged with the first hinge ring 20. The hydraulic telescopic rod 22 is installed on the first hinge ring 20. The upper end of the hydraulic telescopic rod 22 is fixedly connected with the second hinge ring 23. The center of the second hinge ring 23 is hinged with the second fitting frame 24. The reinforcement support structure A5 is arranged on the adjustment structure A1. At this time, the reinforcement support structure A5 can reinforce the connection stability between the backrest A2 and the top plate A4. The first fitting frame 21 is fixed on the sliding vertical rod 4, and the second fitting frame 24 is fixed on the backrest A2. When the backrest A2 and the top plate A4 move relative to each other, the hydraulic telescopic rod 22 can perform telescopic cooperation at this time. At the same time, the first hinge ring 20 is arranged at the lower end of the hydraulic telescopic rod 22, and the second hinge ring 23 is arranged at the upper end of the hydraulic telescopic rod 22. The second hinge ring 23 is hinged with the second fitting frame 24, and the first fitting frame 21 is hinged with the first hinge ring 20, so as to carry out side-end limit auxiliary support and improve the connection stability.

[0042] The first fitting frame 21 is fixedly connected with the sliding vertical rod 4, and the second fitting frame 24 is fixedly connected with the backrest A2.

[0043] The reinforcement support structure A5 is symmetrically arranged with respect to the top plate A4, and both sides of the reinforcement support structure A5 support the backrest A2.

[0044] When in use, the reinforcement support structure A5 is arranged on the adjustment structure A1. At this time, the reinforcement support structure A5 can reinforce the connection stability between the backrest A2 and the top plate A4. The first fitting frame 21 is fixed on the sliding vertical rod 4, and the second fitting frame 24 is fixed on the backrest A2. When the backrest A2 and the top plate A4 move relative to each other, the hydraulic telescopic rod 22 can perform telescopic cooperation at this time. At the same time, the first hinge ring 20 is arranged at the lower end of the hydraulic telescopic rod 22, and the second hinge ring 23 is arranged at the upper end of the hydraulic telescopic rod 22. The second hinge ring 23 is hinged with the second fitting frame 24, and the first fitting frame 21 is hinged with the first hinge ring 20, so as to carry out side-end limit auxiliary support and improve the connection stability.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-stability reclining chair sliding adjustment device, characterized in that: The invention comprises an adjustment structure (A1), a backrest (A2), a back plate (A3) and a top plate (A4); the adjustment structure (A1) is slidably connected to the top plate (A4), and the top plate (A4) is hingedly provided with the backrest (A2); the backrest (A2) and the back plate (A3) are arranged to slide relative to each other; the adjustment structure (A1) comprises a bracket (1), a slide rail (2) and a pulley block (3); the bracket (1) is fixedly connected to the slide rail (2); the slide rail (2) is slidably connected to a sliding vertical rod (4) and a sliding horizontal rod (5) via the pulley block (3); the sliding vertical rod (4) and the sliding horizontal rod (5) are fixedly connected; the center of the bracket (1) is fixedly connected to a motor fixing rod (7); the motor fixing rod (7) is fixedly connected to a motor A fixing plate (8), a motor (6) is mounted on the motor fixing plate (8), the motor (6) drives the motor connecting plate (10) to move, and the motor (6) is driven by a screw rod, the motor connecting plate (10) is fixedly connected to a sliding cross bar (5), the rear end of the sliding vertical bar (4) is fixedly connected to a plane driving pair (11), the plane driving pair (11) is hingedly provided with a driving connecting plate (12), the center of the driving connecting plate (12) is hingedly provided with a backrest support rod (17), the upper end of the backrest support rod (17) is hingedly provided with a backrest connecting rod (14), the backrest connecting rod (14) is fixedly connected to an inserting plate (13), and the rear end of the backrest connecting rod (14) is hingedly provided with a driving plate (15).

2. The high-stability recliner sliding adjustment device according to claim 1, characterized in that: The lower end of the driving plate (15) is hingedly provided with a limit plate (16), the limit plate (16) is fixedly connected to the rear end of the slide rail (2), and the motor (6) is fixed at the bottom by a motor fixing welding plate (9), one end of the driving connecting plate (12) is fixedly connected to the backrest support rod (17) with a synchronous rod (18), and a KD insert (19) is provided at a symmetrical position of the insert (13).

3. The high-stability recliner sliding adjustment device according to claim 2, characterized in that: The sliding vertical rod (4) and the sliding horizontal rod (5) are slidably adjusted on the slide rail (2), and the sliding vertical rod (4) drives the driving connecting plate (12) to move via a planar driving pair (11), and the driving plate (15) is hingedly connected to the bottom of the slide rail (2) via a limiting plate (16).

4. The high-stability recliner sliding adjustment device according to claim 3, characterized in that: The backrest support rod (17), the drive plate (15), the drive connecting plate (12), and the backrest connecting rod (14) form a quadrilateral structure, and the upper ends of the insert plate (13) and the KD insert plate (19) are fixedly connected to the backrest (A2).

5. The high-stability reclining chair sliding adjustment device according to claim 4, characterized in that: The synchronization rod (18) connects the drive connecting plates (12) on both sides, and the drive connecting plates (12) on both sides are operated and adjusted synchronously. The plane drive pair (11) drives the drive plate (15) and the backrest support rod (17) to deform and adjust through the drive connecting plate (12).

6. The high-stability reclining chair sliding adjustment device according to claim 5, characterized in that: The upper ends of the sliding vertical rod (4) and the sliding horizontal rod (5) are fixedly connected to the top plate (A4), and the back plate (A3) is fixedly connected to the rear end of the bracket (1).

7. The high-stability reclining chair sliding adjustment device according to claim 6, characterized in that: A reinforcement support structure (A5) is installed on the backrest (A2), the lower end of the reinforcement support structure (A5) is hinged to the sliding vertical rod (4), and the reinforcement support structure (A5) moves synchronously with the top plate (A4).

8. The high-stability reclining chair sliding adjustment device according to claim 7, characterized in that: The reinforcement support structure (A5) comprises a first hinged ring (20), a first matching frame (21), a hydraulic telescopic rod (22), a second hinged ring (23) and a second matching frame (24); the first matching frame (21) is hingedly provided with the first hinged ring (20); the first hinged ring (20) is mounted with the hydraulic telescopic rod (22); the upper end of the hydraulic telescopic rod (22) is fixedly connected with the second hinged ring (23); the center of the second hinged ring (23) is hingedly provided with the second matching frame (24).

9. The high-stability reclining chair sliding adjustment device according to claim 8, characterized in that: The first matching frame (21) is fixedly connected to the sliding vertical rod (4), and the second matching frame (24) is fixedly connected to the backrest (A2).

10. The high-stability reclining chair sliding adjustment device according to claim 9, characterized in that: The reinforcement support structure (A5) is symmetrically arranged with respect to the top plate (A4), and the reinforcement support structures (A5) on both sides support the backrest (A2).

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