Electric reclining chair adjusting framework

Abstract

This application discloses an adjustable frame for an electric recliner, relating to the field of recliners. It includes two symmetrical support base rods (first type), with two symmetrical support base rods (second type) fixed between the first two support base rods. Each of the second support base rods has a support side plate. A front support leg is positioned between the support side plate and the second support base rod, and a rear support leg is positioned between the support side plate and the second support base rod. A support adjustment mechanism is provided between the two support side plates and the two second support base rods. A support plate is provided at one end of each support side plate, and a support plate synchronization mechanism is provided between the support side plate and the support plate. The support adjustment mechanism moves the support side plate, causing the seat cushion to tilt. Simultaneously, the support side plate and the front support leg activate the support plate synchronization mechanism, unfolding the support plate. This allows for easy adjustment of the user's posture on the recliner, enabling the user to easily get up after use.

Description

Technical Field

[0001] This application relates to the field of recliners, and more particularly to an adjustable frame for an electric recliner. Background Technology

[0002] An electric recliner is a type of leisure chair that can be adjusted backwards. The backrest and leg rest work in sync, allowing the body to naturally transition from a sitting position to a semi-reclining or lying position, reducing spinal pressure and improving blood circulation. It is widely used in living rooms, studies, cinemas, and health resorts, combining comfort and relaxation.

[0003] The frame structure of an electric recliner can be divided into three types: seat frame, backrest frame, and leg support frame. The seat frame mainly supports the human body, the backrest frame supports the back of the human body, allowing the human body to achieve a reclining posture, and the leg support frame supports the human body's legs when the human body is reclining, so that the human body is in a comfortable reclining posture.

[0004] Traditional electric recliners often use multiple independent motors or chain drives to achieve coordinated adjustment of the backrest, seat cushion, and leg rest. This results in structural redundancy and transmission gaps that can easily appear after long-term use, affecting adjustment accuracy and synchronization. In addition, the backrest, seat cushion, and leg rest may become out of sync during adjustment, making it inconvenient for the user to get up. Utility Model Content

[0005] The purpose of this application is to address the problem mentioned in the background art that traditional electric recliners often use multiple independent motors or chain drives to achieve the linkage adjustment of the backrest, seat cushion and leg rest, resulting in structural redundancy and transmission gaps after long-term use, affecting adjustment accuracy and synchronization. At the same time, the backrest, seat cushion and leg rest may be out of sync during the adjustment process, making it inconvenient for the user to get up. This application provides an adjustable frame for an electric recliner.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An adjustable frame for an electric recliner includes two symmetrical support base rods (first type), with two symmetrical support base rods (second type) fixed between the two support base rods (first type). Each of the two support base rods (second type) has a support side plate. A front support leg is provided between the support side plate and the support base rod (second type), and the front support leg is rotatably connected to the support base rod (second type). A rear support leg is provided between the support side plate and the support base rod (second type), and the rear support leg is rotatably connected to the support base rod (second type). A support adjustment mechanism is provided between the two support side plates and the two support base rods (second type). A support plate plate is provided at one end of each support side plate, and a support plate plate synchronization mechanism is provided between the support side plate and the support plate plate. A backrest frame is rotatably connected to the end of the support side plate away from the support plate plate.

[0008] By adopting the above technical solution, the front and rear support legs support the side panels, and the support adjustment mechanism moves the side panels, causing the seat cushion to tilt. The side panels then move the backrest frame, which in turn tilts the backrest. Simultaneously, the side panels and front support legs activate the tray synchronization mechanism, which unfolds the tray plate. This allows for convenient and synchronized changes in the user's posture on the recliner, enabling the user to easily get up after using the recliner.

[0009] Furthermore, the support adjustment mechanism includes a movable rod fixed between two support side plates. A drive assembly is provided between the movable rod and the two support base rods. An adjustment rod is rotatably connected to the end of the rear support leg away from the support base rod. The adjustment rod is L-shaped. An adjustment rod is rotatably connected to the middle of the adjustment rod. An adjustment rod is provided to the end of the adjustment rod, away from the adjustment rod. An adjustment rod is rotatably connected to the middle of the adjustment rod and the adjustment rod. One end of the adjustment rod is rotatably connected to the support side plate. The end of the adjustment rod is rotatably connected to the front support leg. An adjustment rod is rotatably connected to the end of the adjustment rod, away from the rear support leg. The adjustment rod is rotatably connected to the support side plate. A connecting rod is rotatably connected to the end of the adjustment rod, near the adjustment rod. The end of the connecting rod is rotatably connected to the backrest frame.

[0010] By adopting the above technical solution, the driving component drives the moving rod, which in turn drives the corresponding adjusting rods one and two via adjusting rod three and adjusting rod four. Adjusting rod three and adjusting rod one then drive the corresponding front and rear support legs. Adjusting rod one drives the backrest frame via connecting rod one, thereby making it easy to change the support angle and position of the support side plates on the front and rear support legs, and thus easily change the seat and backrest angles.

[0011] Furthermore, the drive assembly includes an electric slide rail fixed between two supporting base rods, a sliding block slidably connected to the electric slide rail, and a drive rod rotatably connected to both sides of the sliding block, with the end of the drive rod away from the sliding block rotatably connected to a moving rod.

[0012] By adopting the above technical solution, the sliding block moves on the electric slide rail, and the sliding block drives the corresponding moving rod with the drive rod, so that the moving rod can easily drive the support side plate to move.

[0013] Furthermore, a stabilizing rod is fixed between the two front support legs, a stabilizing rod is fixed between the two rear support legs, and a stabilizing rod is fixed between the two adjusting rods.

[0014] By adopting the above technical solution, the two front support legs are fixed together by the first stabilizer, the two adjusting rods are fixed together by the second stabilizer, and the two rear support legs are fixed together by the third stabilizer, thereby improving the synchronicity and stability of the movement of the front and rear support legs.

[0015] Furthermore, the pallet synchronization mechanism includes a synchronization rod 1 disposed on the front support leg. One end of the synchronization rod 1 is rotatably connected to the middle of the front support leg. The end of the synchronization rod 1 away from the front support leg is rotatably connected to a synchronization rod 2. The synchronization rod 2 is located between the front support leg and the rear support leg. The middle of the synchronization rod 2 is rotatably connected to the middle of the support side plate. The end of the synchronization rod 2 away from the synchronization rod 1 is rotatably connected to a synchronization rod 3. The synchronization rods 2 and 3 are distributed in a cross pattern. The end of the synchronization rod 3 away from the synchronization rod 2 is rotatably connected to a synchronization rod 4. The end of the synchronization rod 4 near the synchronization rod 3 is rotatably connected to the support side plate. The end of the synchronization rod 4 away from the synchronization rod 3 is rotatably connected to a synchronization rod 5. The end of the synchronization rod 5 away from the synchronization rod 4 is rotatably connected to the pallet plate. A support assembly is disposed between the synchronization rod 4 and the support side plate. A limit assembly is disposed between the synchronization rod 5 and the support side plate.

[0016] By adopting the above technical solution, while the moving rod moves, it drives the support component, and the front support leg drives the corresponding synchronous rods one, two, three, four and five. Synchronous rod five lifts the support plate, and the limiting component flips the angle of the support plate. This allows the support side plate to move the seat cushion into a reclining position, and the support plate to lift the user's legs with the support plate on the recliner, keeping the movement of the support plate synchronized with the movement of the seat cushion.

[0017] Furthermore, the support assembly includes a support rod one disposed on the support side plate, the movable rod passing through the support side plate and fixedly connected to the support rod one, a support rod two rotatably connected to the end of the support rod one away from the movable rod, and the support rod two rotatably connected to the middle of the synchronizing rod four.

[0018] By adopting the above technical solution, when the moving rod moves, it drives the first support rod, which in turn drives the second support rod, which in turn drives the fourth synchronization rod, thereby providing further support for the fourth synchronization rod.

[0019] Furthermore, the limiting assembly includes a limiting rod 1 rotatably connected to one end of the support side plate near the front support leg, a limiting rod 2 rotatably connected to the end of the limiting rod 1 away from the support side plate, the limiting rod 2 being L-shaped, the end of the limiting rod 2 away from the limiting rod 1 being rotatably connected to the support plate, and the end of the limiting rod 1 near the limiting rod 2 being rotatably connected to one end of the synchronizing rod 5 offset from the synchronizing rod 4.

[0020] By adopting the above technical solution, the limiting rod one pulls the synchronizing rod five, and the limiting rod two pulls the support plate, thereby allowing the support plate to extend and change its angle.

[0021] Furthermore, a limiting rod three is rotatably connected to the limiting rod two, the middle part of the limiting rod three is rotatably connected to the limiting rod two, the limiting rod three is L-shaped, one end of the limiting rod three is rotatably connected to the limiting rod four, and the end of the limiting rod four away from the limiting rod three is rotatably connected to the support plate.

[0022] By adopting the above technical solution, the limiting rod three is rotatably connected to the limiting rod two, and the limiting rod four is used to connect the limiting rod three and the support plate, thereby enabling the limiting rod three and the support plate to remain synchronized.

[0023] In summary, this application includes at least one of the following beneficial effects;

[0024] 1. This application utilizes the backrest of the backrest frame to support the user's back. A wired controller controls an electric slide rail, causing a sliding block on the slide rail to move from the end furthest from the front support leg towards the front support leg. The sliding block drives a drive rod, which pulls a moving rod. The moving rod pulls a support side plate, which in turn drives adjusting rods three and four. Adjusting rod three then moves the front support leg, tilting it towards the support plate. Simultaneously, adjusting rod three drives adjusting rod two, which in turn drives adjusting rod one. The support side plate also drives adjusting rod four, causing adjusting rod four to... Adjusting lever one, driven by adjusting levers two and four, pulls the rear support leg, causing it to tilt towards the front support leg. This tilts the seat cushion on the support side panel, supported by the front and rear support legs. Simultaneously, adjusting lever one pulls connecting lever one, causing it to pull the backrest frame, which rotates on the support side panel, tilting the backrest. At the same time, the front support leg drives synchronizing lever one, which in turn drives synchronizing lever two, causing synchronizing lever two to rotate on the support side panel. Synchronizing lever two then drives synchronizing lever three, causing... Synchronizing rod three drives synchronous rod four, which rotates on the support side plate. Synchronizing rod four drives synchronous rod five, which in turn drives the support plate. Synchronizing rod five drives limiting rod one, causing one end of limiting rod one to rotate on the support side plate. Limiting rod one drives synchronous rod five, and simultaneously, limiting rod one drives limiting rod two, which in turn drives the support plate, causing the support plate to face upwards. When the angle of the support plate changes, the support plate drives limiting rod four, which in turn drives limiting rod three. When limiting rod three connects with the support plate, its angle remains synchronized with the support plate. As the moving rod moves, it drives support rod one, which in turn drives support rod two. Support rod two then lifts synchronizer rod four, which in turn lifts synchronizer rod five and limit rod two, thus supporting the support plate. The support plate tilts and supports the tray on the recliner, allowing the tray to lift the user's legs. This achieves the goal of allowing the user to easily and simultaneously change their posture on the recliner, adjusting the backrest, seat cushion, and leg rest at the same time. It also facilitates quick transitions between reclining and sitting positions and allows the user to quickly change their posture after using the recliner, making it easy for them to get up.

[0025] 2. In this application, by using a first stabilizing rod to fix the two front support legs together, a second stabilizing rod to fix the two adjusting rods together, and a third stabilizing rod to fix the two rear support legs together, the synchronicity and stability of the movement of the front and rear support legs are further improved. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the adjustable frame of the electric recliner in this application;

[0027] Figure 2 This is a cross-sectional structural diagram of the adjustable frame of the electric recliner in this application;

[0028] Figure 3 This is a schematic diagram of the structure of the driving component in this application;

[0029] Figure 4 This is a schematic diagram of the structure supporting the adjustment mechanism in this application;

[0030] Figure 5 This is a first structural schematic diagram of the pallet synchronization mechanism in this application;

[0031] Figure 6 This is a schematic diagram of the second structure of the pallet synchronization structure in this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Supporting base rod one; 2. Supporting base rod two; 3. Supporting side plate; 4. Front support leg; 5. Rear support leg; 6. Support adjustment mechanism; 61. Moving rod; 62. Adjusting rod one; 63. Adjusting rod two; 64. Adjusting rod three; 65. Adjusting rod four; 66. Connecting rod one; 67. Drive assembly; 671. Electric slide rail; 672. Sliding block; 673. Drive rod; 7. Pallet synchronization mechanism; 71. Synchronizing rod 72. Synchronizing Rod 2; 73. Synchronizing Rod 3; 74. Synchronizing Rod 4; 75. Synchronizing Rod 5; 76. Support Assembly; 761. Support Rod 1; 762. Support Rod 2; 77. Limiting Assembly; 771. Limiting Rod 1; 772. Limiting Rod 2; 773. Limiting Rod 3; 774. Limiting Rod 4; 8. Support Plate; 9. Backrest Frame; 10. Stabilizing Rod 1; 11. Stabilizing Rod 2; 12. Stabilizing Rod 3. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0035] This application discloses an adjustable frame for an electric recliner.

[0036] Reference Figure 1 , Figure 2 and Figure 3An adjustable frame for an electric recliner includes two symmetrical support base rods 1, with two symmetrical support base rods 2 fixed between the two support base rods 1. Each support base rod 2 is provided with a support side plate 3. A front support leg 4 is provided between the support side plate 3 and the support base rod 2, and the front support leg 4 is rotatably connected to the support base rod 2. A rear support leg 5 is provided between the support side plate 3 and the support base rod 2, and the rear support leg 5 is rotatably connected to the support base rod 2. A support adjustment mechanism 6 is provided between the two support side plates 3 and the two support base rods 2. A support plate 8 is provided at one end of the support side plate 3. A support plate synchronization mechanism 7 is provided between the support side plate 3 and the support plate 8. A backrest frame 9 is rotatably connected to the end of the support side plate 3 away from the support plate 8. When using the adjustable frame of this electric recliner, the seat cushion is fixed to the two supporting side plates 3, and the backrest is fixed to the two symmetrical backrest frames 9. A wired controller is installed between the two supporting side plates 3, and the wired controller controls the support adjustment mechanism 6. When sitting in the recliner, and needing to change the support state of the recliner by adjusting the frame, the wired controller is used to make the support adjustment mechanism 6 move the two supporting side plates 3 synchronously. The supporting side plates 3 move towards the support plate 8. With the front support leg 4 and the rear support leg 5 in place, the supporting side plates 3 tilt towards the front support leg 4, causing the seat cushion installed on the two supporting side plates 3 to tilt. At the same time, the supporting side plates 3 drive the corresponding backrest frames 9, causing the backrest to tilt, thus assuming a reclining position. When the supporting side plates 3 move, the supporting side plates 3 and the front support leg 4 drive the support plate synchronization mechanism 7, which in turn drives the support plate 8, causing the support plate 8 to rotate around one end of the supporting side plate 3 and unfold. The chair extends, and a reclining chair support plate is installed between the two support plates 8, supporting the legs. When it is necessary to sit up, the support adjustment mechanism 6 drives the support side plate 3 to return to its original position under the support of the front support leg 4 and the rear support leg 5. At the same time, the support plate synchronization mechanism 7 drives the support plate 8 to return to its original position, so that the seat cushion installed on the support side plate 3 and the backrest on the backrest frame 9 are in a sitting position. The support plate 8 then retracts, allowing the user to maintain a sitting position in the reclining chair and making it convenient for the user to stand up. This is achieved by using the front support leg 4 and the rear support leg 5 to adjust the support side plate 3. The support mechanism 6 moves the support side plate 3, causing the support side plate 3 to tilt the seat cushion. The support side plate 3 then moves the backrest frame 9, which in turn tilts the backrest. Simultaneously, the support side plate 3 and the front support leg 4 drive the tray synchronization mechanism 7, which in turn unfolds the tray plate 8. This allows for convenient and synchronized changes in the user's posture on the recliner. After using the recliner, the user can easily and quickly switch between reclining and sitting positions, making it easy to get up from the recliner.

[0037] Reference Figure 2 , Figure 3 and Figure 4The support adjustment mechanism 6 includes a movable rod 61 fixed between two support side plates 3. A drive assembly 67 is provided between the movable rod 61 and the two support base rods 1. An adjustment rod 62 is rotatably connected to the end of the rear support leg 5 away from the support base rod 2. The adjustment rod 62 is L-shaped. An adjustment rod 63 is rotatably connected to the middle of the adjustment rod 62. An adjustment rod 64 is provided to the end of the adjustment rod 63 away from the adjustment rod 62. The middle of the adjustment rod 64 is rotatably connected to the adjustment rod 63. One end of the adjustment rod 64 is rotatably connected to the support side plate 3. The end of the adjustment rod 64 away from the support side plate 3 is rotatably connected to the front support leg 4. An adjustment rod 65 is rotatably connected to the end of the adjustment rod 62 away from the rear support leg 5. The adjustment rod 65 is rotatably connected to the support side plate 3. A connecting rod 66 is rotatably connected to the end of the adjustment rod 62 near the adjustment rod 65. The end of the connecting rod 66 away from the adjustment rod 62 is rotatably connected to the backrest frame 9.

[0038] In addition, the drive assembly 67 includes an electric slide rail 671 fixed between two support base rods 1. A sliding block 672 is slidably connected on the electric slide rail 671. A drive rod 673 is rotatably connected to both sides of the sliding block 672. The end of the drive rod 673 away from the sliding block 672 is rotatably connected to the moving rod 61.

[0039] Furthermore, a stabilizing rod 10 is fixed between the two front support legs 4, a stabilizing rod 3 12 is fixed between the two rear support legs 5, and a stabilizing rod 2 11 is fixed between the two adjusting rods 2 63.

[0040] A wired controller is installed on the electric slide rail 671. When installing the corresponding seat cushion, the wired controller is installed on the seat cushion. When the user uses the recliner, they sit directly on the seat cushion. The backrest on the backrest frame 9 supports the user's back. The wired controller controls the electric slide rail 671, causing the sliding block 672 on the electric slide rail 671 to move from the end away from the front support leg 4 toward the front support leg 4. The sliding block 672 drives the drive rod 673, which pulls the moving rod 61. The moving rod 61 pulls the support side plate 3, which in turn drives the adjusting rod. Adjusting rods 64 and 65 move the front support leg 4, tilting it towards the support plate 8. Simultaneously, adjusting rod 64 moves adjusting rod 63, which in turn moves adjusting rod 62. The supporting side plate 3 also moves adjusting rod 65, which in turn moves adjusting rod 62. Adjusting rod 62, driven by adjusting rods 63 and 65, pulls the rear support leg 5, tilting it towards the front support leg 4. This causes the supporting side plate 3, supported by the front and rear support legs 4, to move towards the front support leg 4. The seat cushion on the supporting side plate 3 is tilted. Simultaneously, adjusting rod 62 pulls connecting rod 66, causing connecting rod 66 to pull backrest frame 9. Backrest frame 9 rotates on the supporting side plate 3, tilting the backrest and completing the posture change of the seat cushion and backrest, transforming the recliner from a sitting to a lying position. When the user needs to get up, the wired controller controls the electric slide rail 671, moving the sliding block 672 towards the rear support leg 5, resetting the supporting side plate 3. The backrest frame 9 on the supporting side plate 3 is then pulled by connecting rod 66. When the user moves the chair back to a seated position, the user can stand up. By moving the sliding block 672 on the electric slide rail 671, the sliding block 672 drives the moving rod 61 via the drive rod 673. The moving rod 61 moves the supporting side plate 3, and the supporting side plate 3 and the backrest frame 9 change angles under the limiting pull of the adjusting rods 1 62, 2 63, 3 64 and 4 65. This allows the user to easily change the angle of the seat cushion supported by the supporting side plate 3 and the angle of the backrest supported by the backrest frame 9, making it convenient for the user to lie down and stand up.

[0041] Reference Figure 1 , Figure 5 and Figure 6The pallet synchronization mechanism 7 includes a synchronization rod 71 mounted on the front support leg 4. One end of the synchronization rod 71 is rotatably connected to the middle of the front support leg 4. A synchronization rod 72 is rotatably connected to the end of the synchronization rod 71 away from the front support leg 4. The synchronization rod 72 is located between the front support leg 4 and the rear support leg 5. The middle of the synchronization rod 72 is rotatably connected to the middle of the support side plate 3. A synchronization rod 73 is rotatably connected to the end of the synchronization rod 72 away from the synchronization rod 71. The synchronization rods 72 and 73 are intersecting. Synchronous rod 73 is rotatably connected to a fourth synchronous rod 74 at the end furthest from synchronous rod 72. The end of synchronous rod 74 closest to synchronous rod 73 is rotatably connected to a support side plate 3. Synchronous rod 75 is rotatably connected to the end of synchronous rod 74 furthest from synchronous rod 73. The end of synchronous rod 75 furthest from synchronous rod 74 is rotatably connected to a support plate 8. A support assembly 76 is provided between synchronous rod 74 and support side plate 3. A limit assembly 77 is provided between synchronous rod 75 and support side plate 3.

[0042] In addition, the support assembly 76 includes a support rod 761 disposed on the support side plate 3, a movable rod 61 passing through the support side plate 3 and fixedly connected to the support rod 761, a support rod 762 rotatably connected to the end of the support rod 761 away from the movable rod 61, and the support rod 762 rotatably connected to the middle of the synchronizing rod 74.

[0043] Furthermore, the limiting assembly 77 includes a limiting rod 771 rotatably connected to one end of the support side plate 3 near the front support leg 4. The end of the limiting rod 771 away from the support side plate 3 is rotatably connected to a limiting rod 772. The limiting rod 772 is L-shaped. The end of the limiting rod 772 away from the limiting rod 771 is rotatably connected to the support plate 8. The end of the limiting rod 771 near the limiting rod 772 is rotatably connected to one end of the synchronization rod 75 at the center of the synchronization rod 74.

[0044] Furthermore, a third limiting rod 773 is rotatably connected to the second limiting rod 772. The middle part of the third limiting rod 773 is rotatably connected to the second limiting rod 772. The third limiting rod 773 is L-shaped. One end of the third limiting rod 773 is rotatably connected to a fourth limiting rod 774. The end of the fourth limiting rod 774 away from the third limiting rod 773 is rotatably connected to the support plate 8.

[0045] Sliding block 672 drives drive rod 673, which in turn moves support side plate 3 via moving rod 61. Front support leg 4 drives synchronizing rod 1 71, which in turn drives synchronizing rod 2 72, causing synchronizing rod 2 72 to rotate on support side plate 3. Synchronizing rod 2 72 drives synchronizing rod 3 73, which in turn drives synchronizing rod 4 74, causing synchronizing rod 4 74 to rotate on support side plate 3. Synchronizing rod 4 74 drives synchronizing rod 5 75, which in turn drives support plate 8. Synchronizing rod 5 75 drives limiting rod 1 771, causing one end of limiting rod 1 771 to be on the support side. As plate 3 rotates, limit rod 1 771 drives synchronous rod 5 75, which in turn drives limit rod 2 772. Limit rod 2 772 drives support plate 8, causing support plate 8 to face upwards. When the angle of support plate 8 changes, support plate 8 drives limit rod 4 774, which in turn drives limit rod 3 773. When limit rod 3 773 connects with the support plate, its angle remains synchronized with that of support plate 8. As moving rod 61 moves, it drives support rod 1 761, which in turn drives support rod 2. 762, allowing support rod 2 762 to further lift synchronizer rod 4 74, allowing synchronizer rod 5 75 and limit rod 2 772 to support the support plate 8, allowing the support plate 8 to tilt and support the support board on the recliner, allowing the support board to support the user's legs. When the user needs to get up, the front support leg 4 returns to its original position. The front support leg 4 drives the corresponding synchronizer rod 1 71, synchronizer rod 2 72, synchronizer rod 3 73, synchronizer rod 4 74 and synchronizer rod 5 75 to return to their original positions. At the same time, limit rod 1 771, limit rod 2 772, support rod 1 761 and support rod 2 762 return to their original positions, allowing synchronizer rod 5 75 and limit rod 2 772 to return to their original positions. The second lever 772 drives the support plate 8 to retract, allowing the support plate 8 to lower the legs onto the support board on the recliner. When the front support leg 4 and the support side plate 3 move, the front support leg 4 drives the corresponding synchronous lever 75, which in turn drives the support side plate 3 to drive the corresponding support lever 762. The synchronous lever 75 and the support lever 762 support the support plate 8 to move accordingly. This allows the support plate 8 to lift the user's legs when the user needs to lie down, and to lower the user's legs when the user needs to stand up.

[0046] Working principle: When using the adjustable frame of this electric recliner, the seat cushion is fixed to the two supporting side plates 3, and the backrest is fixed to the two symmetrical backrest frames 9. When using the recliner, the user sits directly on the seat cushion, and the backrest on the backrest frame 9 supports the user's back. The electric slide rail 671 is controlled by a wired controller, causing the sliding block 672 on the electric slide rail 671 to move from the end away from the front support leg 4 toward the front support leg 4. The sliding block 672 drives the drive rod 673, which pulls the moving rod 61. The moving rod 61 pulls the supporting side plate 3, which in turn drives the adjusting rod three 64 and adjusting rod four 65 to adjust the position. Adjusting rod 3 (64) drives the front support leg 4, causing it to tilt towards the support plate 8. Simultaneously, adjusting rod 3 (64) drives adjusting rod 2 (63), which in turn drives adjusting rod 1 (62). At the same time, the supporting side plate 3 drives adjusting rod 4 (65), which in turn drives adjusting rod 1 (62). Adjusting rod 1 (62), driven by adjusting rods 2 (63) and 4 (65), pulls the rear support leg 5, causing it to tilt towards the front support leg 4. This causes the supporting side plate 3, supported by the front and rear support legs 4, to move towards the front support leg 4, resulting in a tilted seat cushion on the supporting side plate 3. Simultaneously, adjusting rod 1 (62) pulls connecting rod 1 (66), which in turn pulls the backrest frame 9. The backrest frame 9 rotates on the support side plate 3, causing the backrest frame 9 to tilt. Simultaneously, the front support leg 4 drives synchronous rod 1 71, which in turn drives synchronous rod 2 72. Synchronous rod 2 72 rotates on the support side plate 3, driving synchronous rod 3 73, which in turn drives synchronous rod 4 74. Synchronous rod 4 74 rotates on the support side plate 3, driving synchronous rod 5 75. Synchronous rod 5 75 drives the support plate 8, which in turn drives limiting rod 1 771. One end of limiting rod 1 771 rotates on the support side plate 3, driving limiting rod 1 771 and synchronous rod 5 75. Simultaneously, limiting rod 1 771 drives limiting rod 2 772. Position lever 2 772 drives support plate 8, causing support plate 8 to face upwards. When the angle of support plate 8 changes, support plate 8 drives limit lever 4 774, which in turn drives limit lever 3 773. When limit lever 3 773 connects to the support plate, its angle remains synchronized with support plate 8. As moving lever 61 moves, it drives support lever 1 761, which in turn drives support lever 2 762. Support lever 2 762 further lifts synchronizer lever 4 74, allowing synchronizer lever 5 75 and limit lever 2 772 to support support plate 8. Support plate 8 tilts and supports the support plate on the recliner, allowing the support plate to lift the user's legs.

Claims

1. An electrically powered reclining chair adjustment frame comprising two symmetrical support base bars (1), characterized in that: Two symmetrical support rods (2) are fixed between the two support rods (1). Each of the two support rods (2) is provided with a support side plate (3). A front support leg (4) is provided between the support side plate (3) and the support rod (2). The front support leg (4) is rotatably connected to the support rod (2). A rear support leg (5) is provided between the support side plate (3) and the support rod (2). The rear support leg (5) is rotatably connected to the support rod (2). A support adjustment mechanism (6) is provided between the two support side plates (3) and the two support rods (2). A support plate (8) is provided at one end of the support side plate (3). A support plate synchronization mechanism (7) is provided between the support side plate (3) and the support plate (8). A backrest frame (9) is rotatably connected to the end of the support side plate (3) away from the support plate (8).

2. The adjustable frame of an electric recliner according to claim 1, characterized in that: The support adjustment mechanism (6) includes a movable rod (61) fixed between two support side plates (3). A drive assembly (67) is provided between the movable rod (61) and the two support base rods (1). An adjustment rod (62) is rotatably connected to the end of the rear support leg (5) away from the support base rod (2). The adjustment rod (62) is L-shaped. An adjustment rod (63) is rotatably connected to the middle of the adjustment rod (62). An adjustment rod (64) is provided at the end of the adjustment rod (63) away from the adjustment rod (62). The middle of the adjustment rod (64) is connected to the adjustment rod (62). (63) Rotary connection: one end of the adjusting rod three (64) is rotatably connected to the supporting side plate (3), the end of the adjusting rod three (64) away from the supporting side plate (3) is rotatably connected to the front support leg (4), the end of the adjusting rod one (62) away from the rear support leg (5) is rotatably connected to the adjusting rod four (65), the adjusting rod four (65) is rotatably connected to the supporting side plate (3), the end of the adjusting rod one (62) near the adjusting rod four (65) is rotatably connected to the connecting rod one (66), the end of the connecting rod one (66) away from the adjusting rod one (62) is rotatably connected to the backrest frame (9).

3. The adjustable frame of an electric recliner according to claim 2, characterized in that: The drive assembly (67) includes an electric slide rail (671) fixed between two support base rods (1), a sliding block (672) is slidably connected on the electric slide rail (671), and a drive rod (673) is rotatably connected to both sides of the sliding block (672). The end of the drive rod (673) away from the sliding block (672) is rotatably connected to the moving rod (61).

4. The adjustable frame of an electric recliner according to claim 3, characterized in that: A stabilizing rod 1 (10) is fixed between the two front support legs (4), a stabilizing rod 3 (12) is fixed between the two rear support legs (5), and a stabilizing rod 2 (11) is fixed between the two adjusting rods 2 (63).

5. The adjustable frame of an electric recliner according to claim 3, characterized in that: The tray synchronization mechanism (7) includes a synchronization rod 1 (71) mounted on the front support leg (4). One end of the synchronization rod 1 (71) is rotatably connected to the middle of the front support leg (4). The end of the synchronization rod 1 (71) away from the front support leg (4) is rotatably connected to a synchronization rod 2 (72). The synchronization rod 2 (72) is located between the front support leg (4) and the rear support leg (5). The middle of the synchronization rod 2 (72) is rotatably connected to the middle of the support side plate (3). The end of the synchronization rod 2 (72) away from the synchronization rod 1 (71) is rotatably connected to a synchronization rod 3 (73). The synchronization rod 2 (72) and the synchronization rod 3 (73) are intersecting. The synchronous rod 3 (73) is rotatably connected to the end of the synchronous rod 2 (72) away from the synchronous rod 4 (74). The end of the synchronous rod 4 (74) close to the synchronous rod 3 (73) is rotatably connected to the support side plate (3). The end of the synchronous rod 4 (74) away from the synchronous rod 3 (73) is rotatably connected to the synchronous rod 5 (75). The end of the synchronous rod 5 (75) away from the synchronous rod 4 (74) is rotatably connected to the support plate (8). A support assembly (76) is provided between the synchronous rod 4 (74) and the support side plate (3). A limit assembly (77) is provided between the synchronous rod 5 (75) and the support side plate (3).

6. The adjustable frame of an electric recliner according to claim 5, characterized in that: The support assembly (76) includes a support rod 1 (761) disposed on the support side plate (3), the movable rod (61) passes through the support side plate (3) and is fixedly connected to the support rod 1 (761), and a support rod 2 (762) is rotatably connected to the end of the support rod 1 (761) away from the movable rod (61), and the support rod 2 (762) is rotatably connected to the middle of the synchronizing rod 4 (74).

7. The adjustable frame of an electric recliner according to claim 6, characterized in that: The limiting assembly (77) includes a limiting rod 1 (771) rotatably connected to one end of the support side plate (3) near the front support leg (4). The end of the limiting rod 1 (771) away from the support side plate (3) is rotatably connected to a limiting rod 2 (772). The limiting rod 2 (772) is L-shaped. The end of the limiting rod 2 (772) away from the limiting rod 1 (771) is rotatably connected to the support plate (8). The end of the limiting rod 1 (771) near the limiting rod 2 (772) is rotatably connected to one end of the synchronization rod 5 (75) at the middle of the synchronization rod 4 (74).

8. The adjustable frame of an electric recliner according to claim 7, characterized in that: Limiting rod 2 (772) is rotatably connected to limiting rod 3 (773). The middle part of limiting rod 3 (773) is rotatably connected to limiting rod 2 (772). Limiting rod 3 (773) is L-shaped. One end of limiting rod 3 (773) is rotatably connected to limiting rod 4 (774). The end of limiting rod 4 (774) away from limiting rod 3 (773) is rotatably connected to the support plate (8).

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