Smart home office recliner

Abstract

The application relates to an intelligent home office reclining chair, belonging to the technical field of office chairs, which comprises a seat mechanism, a footboard slidably installed on a base for a user to sit down; a backrest mechanism hingedly connected to the base for a user to lean against or rotate back to support the upper body of the user lying down; a backrest rotation adjusting assembly arranged on the base to lock or unlock the rotation of the backrest mechanism; an armrest plate rotatably connected to the base and capable of rotating outward of the base to increase the length of the base; and an armrest rotation assembly cooperating with the backrest rotation adjusting assembly to synchronously rotate the armrest plate and the backrest mechanism or to separately rotate the backrest mechanism. The application has the effect that office workers can properly rest on the office reclining chair.

Description

Technical Field

[0001] This application relates to the field of office chair technology, and in particular to a smart home office recliner. Background Technology

[0002] Office reclining chairs are primarily designed for office or study spaces. The backrest can be folded back, allowing the user to recline and rest. With the increasing prevalence of smart homes, home security, convenience, comfort, and energy efficiency have improved. Consequently, many office workers continue completing unfinished work at home after hours. Furthermore, the pandemic has led many to use office chairs at home for remote work.

[0003] In related technologies, such as Chinese invention patent CN109008362B, an office chair is disclosed. When the adjustment mechanism is unlocked, adjusting the relative positions of the first armrest, second armrest, seat surface, and first curved adjustment plate moves the office chair to the first position, and locking the adjustment mechanism allows it to be used as a normal chair. When a rest is needed, the adjustment mechanism is unlocked, and adjusting the relative positions of the first armrest, second armrest, seat surface, and first curved adjustment plate moves the office chair to the second position, locking the adjustment mechanism allows for a semi-reclining rest. Furthermore, the adjustment mechanism is unlocked, and adjusting the relative positions of the first armrest, second armrest, seat surface, and first curved adjustment plate moves the office chair to the third position, locking the adjustment mechanism allows for a fully reclined rest. The office chair of this invention allows the same chair to switch between three different states, thus providing a comfortable rest for the user while saving space.

[0004] In the aforementioned technologies, when office workers lie down during their lunch break, the office chair only tilts backward. At this time, due to the limitation of the armrests on both sides, the width of the reclining chair is limited. Consequently, when office workers lie down, the armrests restrict their ability to turn over significantly and maintain a good sleeping posture to ensure better sleep. Summary of the Invention

[0005] In order to enable office workers to get proper rest in office recliners, this application provides a smart home office recliner.

[0006] This application provides a smart home office recliner, which adopts the following technical solution:

[0007] A smart home office recliner includes: a seat mechanism, including a base for a user to sit on and a foot pedal slidably mounted on the base;

[0008] The backrest mechanism is hinged to the base so that the user can lean against it or rotate it to support the upper body of the user when lying down.

[0009] A backrest rotation adjustment assembly is mounted on the base for locking or unlocking the rotation of the backrest mechanism;

[0010] The armrest is rotatably connected to the base and can rotate outward to increase the length of the base;

[0011] The armrest rotation assembly cooperates with the backrest rotation adjustment assembly to enable the armrest plate and the backrest mechanism to rotate synchronously or to enable the backrest mechanism to rotate independently.

[0012] Optionally, the chair back mechanism includes a backrest, a backrest rotation shaft, side panels slidably disposed on the backrest, and a side panel drive assembly that cooperates with the foot pedal to drive the side panels to slide. The backrest rotation shaft is rotatably mounted on the base, the backrest is mounted on the backrest rotation shaft and rotates synchronously with the backrest rotation shaft, and a storage groove is provided on the side wall of the backrest. The side panels are slidably stored in the storage groove. There are two side panels, which are located on opposite sides of the backrest. The side panel drive assembly is slidably disposed between the two side panels to drive the two side panels to slide out of the storage groove or to store the two side panels in the storage groove.

[0013] Optionally, the side seat drive assembly includes a drive rod, a drive rope, a drive linkage, and a return spring disposed on the backrest. The drive rod is slidably disposed on the backrest. One end of the drive rope is connected to the drive rod, and the other end is connected to the foot pedal. One side of the drive linkage is rotatably connected to the drive rod, and the other side is rotatably connected to the side panel. The return spring drives the slidable drive rod to automatically return to its original position so that the side panel automatically retracts into the storage slot.

[0014] When the foot pedal moves away from the backrest, the side panel extends out of the storage slot; when the foot pedal moves closer to the backrest, the side panel retracts into the storage slot.

[0015] Optionally, the backrest rotation adjustment assembly includes a backrest pull rod and a limiting plate connected to the backrest pull rod. The backrest rotation shaft is rotatably mounted on the base and rotates synchronously with the backrest mechanism. The backrest pull rod rotates and slides on the base. The backrest rotation shaft is provided with a limiting part and a clearance part. When the backrest pull rod is located at the limiting part, the limiting plate abuts against the base to limit the rotation of the backrest rotation shaft. When the backrest pull rod slides to the clearance part, the limiting plate does not limit the rotation of the backrest rotation shaft.

[0016] Optionally, the chair back rotation adjustment assembly further includes a drive gear sleeve and a limiting half-tooth ring. The drive gear sleeve is sleeved on the chair back rotation shaft and rotates synchronously with the chair back rotation shaft. The drive gear sleeve is provided with a hollow tooth portion and a meshing portion. The hollow tooth portion does not mesh with the limiting half-tooth ring. The limiting half-tooth ring is sleeved on the chair back pull rod and meshes with the meshing portion. The limiting plate is fixedly disposed on the outer wall of the limiting half-tooth ring.

[0017] Optionally, the foot pedal is provided with a rack, and the base is rotatably provided with a driven gear sleeve, the driven gear sleeve meshing with the rack, the driven gear sleeve meshing with the driving gear sleeve, and the outer diameter of the teeth of the driving gear sleeve being larger than the outer diameter of the teeth of the driven gear sleeve.

[0018] Optionally, the handrail rotation assembly includes a support rotation seat, a handrail rotation shaft, and a limiting strip. The support rotation seat is disposed on the base. The handrail plate is rotatably mounted on the support rotation seat via the handrail rotation shaft, and the handrail plate rotates synchronously with the handrail rotation shaft. The limiting strip is rotatably disposed on the base. A locking groove is provided on the outer wall of the handrail rotation shaft. After the limiting strip rotates, it inserts into or disengages from the locking groove to limit or unlock the rotation of the handrail rotation shaft.

[0019] Optionally, the armrest rotation assembly further includes an unlocking rod that drives the limiting strip to rotate out of the locking groove. The unlocking rod is connected to the limiting plate. A clearance groove is provided on the base. When the limiting plate moves to the position of the clearance groove, it rotates into the clearance groove under the action of the drive gear sleeve. At this time, the unlocking rod and the limiting plate rotate synchronously to drive the limiting strip to rotate.

[0020] Optionally, the distance from one end of the limiting strip inserted into the locking groove to the rotation center of the limiting strip is less than the distance from the opposite end of the limiting strip to the rotation center of the limiting strip;

[0021] The support rotating seat includes a support plate and a rotating lug. After the handrail plate rotates, it abuts against the top of the support plate, and the handrail rotating shaft is rotatably mounted on the rotating lug.

[0022] The limiting half-tooth ring has a convex tooth portion and a smooth portion, the limiting plate is located on the smooth portion, and the smooth portion does not mesh with the drive gear sleeve.

[0023] Optionally, the smart home office recliner also includes a caster support frame, which is located at the bottom of the base. The backrest has an arc-shaped groove that limits the rotation angle of the backrest. The base has a limiting rod that is inserted into the arc-shaped groove. There are two side panels, which are located on opposite sides of the backrest. When the drive rod moves, it simultaneously drives the two side panels to extend and retract synchronously.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When office workers need to lie down and rest in the recliner, they can adjust the backrest rotation mechanism to rotate the backrest and allow them to recline. Simultaneously, they can adjust the armrest rotation mechanism using the backrest rotation mechanism to control the armrests' rotation. When the armrests rotate, the base width increases. Additionally, the footrest slides out with the backrest rotation, and the side panels slide out from their storage slots, further increasing the backrest width and overall width of the recliner. This provides ample space for the office worker to adjust their sleeping posture for better rest. When the armrests are not rotated, the footrests and side panels extend normally. In this case, the armrests act as a safety feature, preventing the office worker from rolling off the recliner while resting.

[0026] 2. When the office worker changes from a lying position to a sitting position, the backrest rotates to reset. At the same time as the backrest rotates to reset, the foot pedal retracts. At this time, the drive rod will also automatically reset under the action of the reset spring, causing the two side panels to retract into the storage slot. After the backrest resets, there is no need to move the foot pedal or side panels separately to reset them. The three structures work together in a synchronized manner, which is quite convenient.

[0027] 3. The drive gear sleeve, the limiting half-tooth ring, and the limiting plate work together to provide three adjustment positions for the recliner. First, when the backrest is locked to prevent rotation, the drive gear sleeve and the limiting half-tooth ring mesh with each other. At this time, the limiting plate abuts against the base to limit the rotation of the drive gear sleeve, thus restricting the rotation of the backrest. Second, when it is necessary to recline the chair without rotating the armrests, moving the backrest lever moves the limiting half-tooth ring to the open tooth position. The drive gear sleeve loses its meshing with the limiting half-tooth ring, and the backrest will then rotate. Finally, when the backrest rotates and the armrests also need to rotate, continue pulling the backrest lever to move the limiting plate to the clearance groove position. At this time, the protruding teeth of the limiting half-tooth ring will engage with the meshing part. The limiting half-tooth ring will rotate under the action of the drive gear sleeve, causing the limiting plate to rotate into the clearance groove. The rotation of the limiting plate will drive the unlocking lever to rotate, thereby driving the limiting strip to rotate out of the locking groove to release the limitation on the armrest board. The armrest board will then flip outward under its own weight. To flip the armrest board, simply continue pulling the backrest lever. The operation is simple. Attached Figure Description

[0028] Figure 1 This is an overall view of the smart home office recliner in the embodiments of this application.

[0029] Figure 2 This is a perspective sectional view of the smart home office recliner in the embodiments of this application.

[0030] Figure 3 yes Figure 2 Enlarged view of part A

[0031] Figure 4 This is an exploded view of the seat mechanism, backrest mechanism, backrest rotation adjustment assembly, and armrest rotation assembly in the embodiments of this application.

[0032] Figure 5 This is an exploded view of the chair back mechanism and chair back rotation adjustment assembly in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram of the cooperation structure between the chair back mechanism and the foot pedal in the embodiments of this application.

[0034] Figure 7 This is an exploded view of the backrest, side panel, and side seat drive assembly in the embodiments of this application.

[0035] Figure 8 This is a schematic diagram of the backrest rotation adjustment assembly in the embodiments of this application.

[0036] Figure 9 This is a schematic diagram of the cooperation structure between the handrail rotation component and the handrail plate in the embodiments of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Seat mechanism; 11. Base; 111. Pedal groove; 112. Mounting groove; 113. Clearance groove; 114. Unlocking groove; 12. Foot pedal; 13. Rack and pinion; 14. Driven gear sleeve; 2. Backrest mechanism; 21. Backrest; 211. Storage groove; 212. Assembly groove; 213. T-slot; 214. Spring groove; 215. Arc groove; 22. Backrest rotation shaft; 23. Side panel; 24. Side panel drive assembly; 241. Drive rod; 242. Drive rope; 243. Drive linkage; 244. Return spring. 245. T-block; 246. Spring column; 25. Baffle; 3. Backrest rotation adjustment assembly; 31. Backrest pull rod; 311. Handle; 32. Limiting plate; 33. Drive gear sleeve; 331. Hollow tooth part; 332. Meshing part; 34. Limiting half tooth ring; 341. Protruding tooth part; 342. Smooth part; 4. Armrest plate; 5. Armrest rotation assembly; 51. Support rotating seat; 511. Support plate; 512. Rotating lug; 52. Armrest rotation shaft; 521. Locking groove; 53. Limiting strip; 54. Unlocking rod; 6. Universal wheel support frame. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0039] This application discloses a smart home office recliner.

[0040] Reference Figure 1 The smart home office recliner includes a seat mechanism 1, a backrest mechanism 2, a backrest rotation adjustment component 3, armrests 4, armrest rotation components 5, and a caster support frame 6. The seat mechanism 1 is rotatably mounted on the top of the caster support frame 6, allowing the seat to rotate at any angle along a horizontal square. The backrest mechanism 2 is hinged to the seat mechanism 1 on one side, allowing it to rotate to allow the user to recline. The backrest rotation adjustment component 3 is connected to the seat mechanism 1 to control or limit the rotation of the backrest mechanism 2. Two armrests 4 are provided, located on opposite sides of the seat mechanism 1, and both are rotatably connected to the seat mechanism 1. When the user reclines, the armrests 4 can be flipped outwards to increase the width of the seat mechanism 1. The armrest rotation component 5 is connected to the seat mechanism 1 to control the coordinated rotation of the armrests 4 and the backrest mechanism 2, or the independent rotation of the backrest mechanism 2.

[0041] Reference Figure 1 and Figure 2The chair seat mechanism 1 includes a base 11 and a footrest 12. The base 11 is rotatably connected to the caster wheel support frame 6. A footrest groove 111 is provided on the side of the base 11 opposite to the backrest mechanism 2. The footrest 12 is inserted into the footrest groove 111 and can slide and extend within the footrest groove 111 to support the feet of the reclining office worker. The footrest 12 slides and extends in conjunction with the backrest rotation adjustment component 3 and the backrest mechanism 2.

[0042] Reference Figure 2 and Figure 3 The chair back mechanism 2 includes a backrest 21, a backrest rotation shaft 22, a side panel 23, and a side panel drive assembly 24. The backrest 21 is located on the side opposite to the footrest groove 111, and is rotatably mounted on the base 11 via the backrest rotation shaft 22. The side panel 23 is slidably disposed on the backrest 21, and the sliding direction of the side panel 23 is consistent with the extension direction of the armrest 4 after rotation, thereby increasing the width of the backrest 21. The side panel drive assembly 24 is disposed on the backrest 21, and the side panel drive assembly 24 will be linked with the footrest 12, thereby driving the side panel 23 to slide out; that is, when the footrest 12 extends, the side panel 23 will also extend under the action of the side panel drive assembly 24.

[0043] Reference Figure 3 and Figure 4 A mounting groove 112 is provided on the side of the base 11 near the backrest 21, and the mounting groove 112 communicates with the pedal groove 111. The backrest rotation shaft 22 is located in the mounting groove 112, and the opposite ends of the backrest rotation shaft 22 pass through the groove wall of the mounting groove 112 and are exposed on the outside of the base 11, thus being rotatably mounted on the base 11. A strip-shaped hole is provided on the outer wall of the backrest rotation shaft 22, and a synchronous rotation bar is interference-fitted into the strip-shaped hole, protruding from the strip-shaped hole. The two ends of the backrest rotation shaft 22 protruding from the mounting groove 112 are inserted into the side wall of the backrest 21, and at this time, the synchronous rotation bar is also inserted into the side wall of the backrest 21, thereby making the backrest 21 and the backrest rotation shaft 22 rotate synchronously.

[0044] A storage groove 211 is provided on the side wall corresponding to the backrest 21 and the armrest 4, and the storage groove 211 extends through the backrest 211 along the opening direction. Since there are two armrests, it is preferable to provide two side panels 23 in this embodiment. The two side panels 23 correspond to the two armrests 4, and both side panels 23 are slidably installed in the storage groove 211. The side panel drive assembly 24 is located between the two side panels 23 and is slidably disposed on the backrest 21. When the side panel drive assembly 24 slides, it will simultaneously drive the two side panels 23 to slide towards or relative to each other.

[0045] Reference Figure 4 and Figure 5An assembly slot 212 is provided on the side of the backrest 21 that fits against the user's back, and the assembly slot 212 is connected to the storage slot 211. The assembly slot 212 facilitates the installation of the side chair board drive assembly 24 onto the wall of the storage slot 211. A baffle 25 is interference-fitted into the assembly slot 212, and the baffle 25 is located on one side of the opening of the assembly slot 212 and flush with the side of the backrest 21 that fits against the user's back, making it more comfortable for the user to lean against.

[0046] The side seat drive assembly 24 includes a drive rod 241, a drive rope 242, a drive connecting rod 243, and a return spring 244. The drive rod 241 is placed in the storage slot 211 via the assembly slot 212 and slidably mounted on the wall of the storage slot 211. One end of the drive rope 242 is fixedly connected to the foot pedal 12; the other end is connected to the drive rod 241, so that when the foot pedal 12 extends, it can drive the drive rod 241 to slide. One side of the drive connecting rod 243 is rotatably mounted on the side wall of the drive rod 241 near the side panel 23; the other side is rotatably mounted on the side of the side panel 23 near the drive rod 241. One side of the return spring 244 abuts against the side of the drive rod 241 near the base 11; the other side abuts against the wall of the storage slot 211 near the base 11. This design allows the drive rod 241 to automatically return to its original position under the action of the return spring 244 after sliding, allowing the side panel 23 to be stored in the storage slot 211.

[0047] Reference Figure 6 and Figure 7 The drive rod 241 has a T-shaped block 245 integrally formed on the side opposite to the opening of the assembly groove 212. The storage groove 211 has a T-shaped groove 213 on the side opposite to the opening of the assembly groove 212 for inserting the T-shaped block 245 and for fitting the T-shaped block 245 so that the drive rod 241 can slide in a specific direction.

[0048] Multiple drive linkages 243 are spaced apart along the sliding direction of drive rod 241, thereby reducing the occurrence of jamming of side plate 23 when the drive side plate 23 slides.

[0049] Reference Figure 5 and Figure 6 A spring post 246 is integrally formed on the side of the drive rod 241 near the base 11, and a spring groove 214 is formed on the groove wall of the storage groove 211 near the base 11. The return spring 244 abuts against one side of the drive rod 241 and is sleeved on the spring post 246; the other side is inserted into the spring groove 214, so that the return spring 244 is limited and the stability of the return spring 244 after installation is improved.

[0050] Combination Figure 4 , Figure 5 Reference Figure 8The chair back rotation adjustment assembly 3 includes a chair back pull rod 31, a limiting plate 32, a drive gear sleeve 33, and a limiting half-tooth ring 34. The drive gear sleeve 33 is located in the mounting groove 112 and is keyed to the chair back rotation shaft 22, and the drive gear sleeve 33 will rotate synchronously with the chair back rotation shaft 22. The chair back pull rod 31 passes through the mounting groove 112, and the chair back pull rod 31 rotates and slides to be mounted on the base 11. The limiting half-tooth ring 34 is located in the mounting groove 112 and is keyed to the chair back rotation shaft 22. The limiting plate 32 is integrally formed on the outer wall of the limiting half-tooth ring 34. The chair back rotation shaft 22 has a limiting part and a clearance part. When the limiting half-tooth ring 34 is located in the limiting part, the drive gear sleeve 33 and the limiting half-tooth ring 34 mesh with each other. At this time, the limiting plate 32 abuts against the bottom of the mounting groove 112 and is limited, so the backrest 21 is not easy to rotate. When the limiting half-tooth ring 34 moves to the yielding part, the limiting half-tooth ring 34 does not mesh with the driving gear sleeve 33, and the backrest 21 can rotate freely for a person to lie down.

[0051] The backrest 21 has an arc-shaped groove 215 extending through its side wall. The backrest pull rod 31 is inserted into and passes through the arc-shaped groove 215, allowing the backrest 21 to rotate within the arc range of the groove 215. Both ends of the backrest pull rod 31 protrude from the arc-shaped groove 215 and are exposed externally. One end of the backrest pull rod 31 has an integrally formed handle 311 for easy operation by the user. The drive gear sleeve 33 has a hollow tooth portion 331 and a meshing portion 332. The hollow tooth portion 331 corresponds to the clearance portion, and the meshing portion 332 corresponds to the limiting portion. The limiting semi-tooth ring 34 has a protruding tooth portion 341 and a smooth portion 342. The protruding tooth portion 341 meshes with the meshing portion 332, but the protruding tooth portion 341 does not mesh with the hollow tooth portion 331. The smooth part 342 does not engage with the engaging part 332 to control the rotation of the armrest plate 4, and the limiting plate 32 is fixed to the smooth part 342. That is, when the toothed part 341 engages with the engaging part 332 and the limiting plate 32 abuts against the bottom of the mounting groove 112, the rotation of the backrest 21 is limited; when the toothed part 341 engages with the hollow toothed part 331, the backrest 21 can rotate freely.

[0052] Combination Figure 3 , Figure 4 Reference Figure 8The backrest lever 31 can control three positions: locking the backrest 21, rotating the backrest 21, and unlocking the armrest 4. When the toothed portion 341 and the engaging portion 332 are engaged, the rotation of the backrest 21 is limited. To rotate the backrest 21, simply pull the backrest lever 31 outwards until the toothed portion 341 is in the open toothed portion 331. To rotate the armrest 4, continue pulling the backrest lever 31 outwards until the toothed portion 341 and the engaging portion 332 are engaged. At this time, the limiting plate 32 can rotate, thereby driving the armrest 4 to rotate and fold outwards. As the engaging portion 332 engages with the smooth portion 342, slippage occurs, thus preventing the limiting plate 32 from rotating.

[0053] A rack 13 is integrally formed on the side of the foot pedal 12 near the backrest 21. A driven gear sleeve 14 is rotatably mounted on the groove wall of the mounting groove 112 via a rotating pin. The driven gear sleeve 14 meshes with the rack 13. At the same time, the driven rack 13 sleeve meshes with the driving gear sleeve 33. The outer diameter of the teeth of the driving gear sleeve 33 is larger than that of the teeth of the driven gear sleeve 14. Compared with the case where the outer diameters of the teeth of the driving gear sleeve 33 and the driven gear sleeve 14 are the same, the foot pedal 12 can be driven to extend a longer distance.

[0054] When the limiting half-tooth ring 34 is located in the hollow tooth section 331, the backrest 21 rotates backward, which will drive the driving gear sleeve 33 and the driven gear sleeve 14 to rotate together. The rotation of the driven gear sleeve 14 will drive the rack 13 to move, thereby driving the foot pedal 12 to extend. In the above structure, the backrest 21 will drive the foot pedal 12 to extend at the same time as it rotates, so it is not necessary to move the foot pedal 12 separately after the backrest 21 rotates, which is more convenient.

[0055] Reference Figure 4 and Figure 9 The armrest rotation assembly 5 includes a support rotation seat 51, an armrest rotation shaft 52, a limiting strip 53, and an unlocking rod 54. The support rotation seat 51 is fixedly installed on the side wall of the base 11. The armrest rotation shaft 52 passes through the armrest plate 4 and is keyed to the armrest plate 4, allowing the armrest plate 4 to rotate together with the armrest rotation shaft 52; the armrest rotation shaft 52 is rotatably installed on the support rotation seat 51. The limiting strip 53 is rotatably installed on the base 11 to lock or unlock the rotation of the armrest rotation shaft 52. The unlocking rod 54 is fixedly connected to the limiting plate 32, and when the backrest pull rod 31 moves the limiting plate 32 to the unlock position, the unlocking rod 54 will rotate together with the limiting plate 32, thereby causing the limiting strip 53 to rotate and release the locking of the limiting strip 53 on the armrest rotation shaft 52, allowing the armrest plate 4 to rotate and fold outward.

[0056] Specifically, the rotating support 51 includes a support plate 511 and rotating lugs 512. The support plate 511 is fixedly installed on the side wall of the base 11. Two rotating lugs 512 are provided, located on opposite sides of the support plate 511. Both rotating lugs 512 are welded and fixed to the support plate 511, facilitating the installation of the handrail 4 between the two rotating lugs 512. After the handrail 4 is folded outwards and rotated 90 degrees, it will abut against the top of the support plate 511 and be limited, preventing further rotation; at this time, the top surface of the handrail 4 is parallel to the top surface of the base 11.

[0057] Reference Figure 4 and Figure 9 The armrest rotation shaft 52 is inserted into and rotatably mounted on the rotating support lug 512, with one end of the armrest rotation shaft 52 near the backrest 21 passing through the corresponding rotating support lug 512 and exposed externally. A locking groove 521 is formed on the outer wall of the exposed portion of the armrest rotation shaft 52. A limiting strip 53 is rotatably mounted on the side wall of the base 11 via a rotating pin. After rotation, the limiting strip 53 can be inserted into or disengaged from the locking groove 521. When the limiting strip 53 is partially within the locking groove 521, the rotation of the armrest rotation shaft 52 is limited; when the limiting strip 53 rotates out of the locking groove 521, the rotation limitation on the armrest rotation shaft 52 is released. Wherein, the distance from the end of the limiting strip 53 inserted into the locking groove 521 to the center of rotation of the limiting strip 53 is less than the distance from the end of the limiting strip 53 away from the locking groove 521 to the center of rotation of the limiting strip 53, so that the limiting strip 53 can rotate automatically without any external force intervention, and thus the limiting strip 53 can be automatically inserted into the locking groove 521 when resetting.

[0058] Combination Figure 2 Reference Figure 8 and Figure 9 The mounting groove 112 has a clearance groove 113 at its bottom. When the limiting plate 32 moves to the clearance groove 113, the protruding tooth 341 engages with the meshing part 332. As the drive gear sleeve 33 rotates, the limiting plate 32 will rotate into the clearance groove 113 to make clearance. The base 11 has an arc-shaped unlocking groove 114 on its side wall where the armrest plate 4 is mounted. The unlocking rod 54 passes through the unlocking groove 114 on the side away from the limiting plate 32. When the limiting plate 32 rotates into the clearance groove 113, the unlocking rod 54 will rotate synchronously under the guidance of the unlocking groove 114, thereby causing the limiting strip 53 to rotate and rotate out of the locking groove 521. When the limiting strip 53 is completely disengaged from the locking groove 521, the meshing part 332 engages with the smooth part 342, making it difficult for the limiting plate 32 to continue rotating.

[0059] The implementation principle of a smart home office recliner according to this application embodiment is as follows: When the office worker is resting on the recliner and does not need the armrest 4 to rotate, the backrest lever 31 is pulled outward, so that the limiting half-tooth ring 34 is in the hollow tooth part 331. At this time, the backrest 21 can rotate and fold backward. At the same time as the backrest 21 rotates and folds backward, the drive gear sleeve 33 will rotate synchronously. The rotation of the drive gear sleeve 33 will drive the driven gear sleeve 14 to rotate. After the driven gear sleeve 14 rotates, it will cooperate with the rack 13 to drive the foot pedal 12 to extend from the foot pedal groove 111 to support the office worker's feet. As the foot pedal 12 extends from the pedal groove 111, the drive rope 242 pulls the drive rod 241 to slide. When the drive rod 241 slides, the two side plates 23 will extend from the storage groove 211 under the action of the drive linkage 243 to increase the width of the backrest 21, thereby increasing the sleeping space area for the upper body of the office worker and allowing the office worker to have a better sleeping posture. At this time, the armrest 4 exists as a limiting function to prevent people from rolling off the recliner.

[0060] When the office worker needs the armrests 4 to rotate as well, the chair back lever 31 is pulled outwards while the half-tooth ring is in the empty tooth section 331, until the limiting plate 32 is in the groove of the relief groove 113. At this time, the convex tooth section 341 engages with the meshing part 332. The drive gear sleeve 33 will drive the limiting plate 32 to rotate into the relief groove 113. When the limiting plate 32 rotates into the relief groove 113, the unlocking lever 54 will rotate in the extension direction of the unlocking groove 114 under the limitation of the unlocking groove 114, thereby actuating the limiting strip 53 to rotate, so that the limiting strip 53 rotates out of the locking groove 521. After the limiting strip 53 rotates out of the locking groove 521, the two armrests 4 can rotate outwards and fold ninety degrees until they are stopped against the top of the support plate 511. At this point, the width of the base 11 is widened, and the side panel 23 and footrest 12 extend normally, thus increasing the width of the recliner and providing more space for office workers to lie down and rest, allowing them to have a better sleeping posture and get proper rest.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smart home office recliner, characterized in that, include: The chair seat mechanism (1) includes a base (11) for the user to sit on and a foot pedal (12) that is slidably mounted on the base (11). The backrest mechanism (2) is hinged to the base (11) so that the user can lean against it or rotate it to support the upper body of the user when lying down. The backrest rotation adjustment assembly (3) is mounted on the base (11) and is used to lock or unlock the rotation of the backrest mechanism (2); The armrest board (4) is rotatably connected to the base (11) and can rotate outward to increase the length of the base (11); The armrest rotation assembly (5) cooperates with the chair back rotation adjustment assembly (3) to make the armrest plate (4) and the chair back mechanism (2) rotate synchronously or to make the chair back mechanism (2) rotate independently; The chair back mechanism (2) includes a backrest (21), a backrest rotation shaft (22), a side plate (23) slidably disposed on the backrest (21), and a side plate drive assembly (24) that cooperates with the foot pedal (12) to drive the side plate (23) to slide. The backrest rotation shaft (22) is rotatably mounted on the base (11), and the backrest (21) is mounted on the backrest rotation shaft (22) and rotates synchronously with the backrest rotation shaft (22). A storage groove (211) is provided on the side wall, and the side plate (23) is slidably stored in the storage groove (211). There are two side plates (23), which are located on opposite sides of the backrest (21). The side plate driving assembly (24) is slidably disposed between the two side plates (23) to drive the two side plates (23) to slide out of the storage groove (211) or to store the two side plates (23) in the storage groove (211). The side seat drive assembly (24) includes a drive rod (241), a drive rope (242), a drive link (243), and a return spring (244) disposed on the backrest (21). The drive rod (241) is slidably disposed on the backrest (21). One end of the drive rope (242) is connected to the drive rod (241), and the other end is connected to the foot pedal (12). One side of the drive link (243) is rotatably connected to the drive rod (241), and the other side is rotatably connected to the side panel (23). The return spring (244) drives the slidable drive rod (241) to automatically return to its original position so that the side panel (23) automatically retracts into the storage slot (211). When the foot pedal (12) moves away from the backrest (21), the side plate (23) will extend out from the storage slot (211); when the foot pedal (12) moves closer to the backrest (21), the side plate (23) will be stored in the storage slot (211). The chair back rotation adjustment assembly (3) includes a chair back pull rod (31) and a limiting plate (32) connected to the chair back pull rod (31). The chair back rotation shaft (22) is rotatably mounted on the base (11) and rotates synchronously with the chair back mechanism (2). The chair back pull rod (31) rotates and slides on the base (11). The chair back rotation shaft (22) is provided with a limiting part and a clearance part. When the chair back pull rod (31) is located at the limiting part, the limiting plate (32) abuts against the base (11) to limit the rotation of the chair back rotation shaft (22). When the chair back pull rod (31) slides to the clearance part, the limiting plate (32) does not limit the rotation of the chair back rotation shaft (22).

2. The smart home office recliner according to claim 1, characterized in that: The chair back rotation adjustment assembly (3) further includes a drive gear sleeve (33) and a limiting half-tooth ring (34). The drive gear sleeve (33) is sleeved on the chair back rotation shaft (22) and rotates synchronously with the chair back rotation shaft (22). The drive gear sleeve (33) is provided with a hollow tooth part (331) and a meshing part (332). The hollow tooth part (331) does not mesh with the limiting half-tooth ring (34). The limiting half-tooth ring (34) is sleeved on the chair back pull rod (31) and meshes with the meshing part (332). The limiting plate (32) is fixedly set on the outer wall of the limiting half-tooth ring (34).

3. The smart home office recliner according to claim 2, characterized in that: A rack (13) is provided on the foot pedal (12), and a driven gear sleeve (14) is rotatably provided on the base (11). The driven gear sleeve (14) meshes with the rack (13), and the driven gear sleeve (14) meshes with the driving gear sleeve (33). The outer diameter of the teeth of the driving gear sleeve (33) is larger than the outer diameter of the teeth of the driven gear sleeve (14).

4. The smart home office recliner according to claim 2, characterized in that: The handrail rotation assembly (5) includes a support rotation seat (51), a handrail rotation shaft (52), and a limiting strip (53). The support rotation seat (51) is disposed on the base (11). The handrail plate (4) is rotatably mounted on the support rotation seat (51) via the handrail rotation shaft (52), and the handrail plate (4) rotates synchronously with the handrail rotation shaft (52). The limiting strip (53) is rotatably disposed on the base (11). A locking groove (521) is provided on the outer wall of the handrail rotation shaft (52). After the limiting strip (53) rotates, it inserts into or disengages from the locking groove (521) to limit or unlock the rotation of the handrail rotation shaft (52).

5. A smart home office recliner according to claim 4, characterized in that: The armrest rotation assembly (5) also includes an unlocking rod (54) that drives the limiting strip (53) to rotate out of the locking groove (521). The unlocking rod (54) is connected to the limiting plate (32). The base (11) has a clearance groove (113). When the limiting plate (32) moves to the position of the clearance groove (113), it rotates into the clearance groove (113) under the action of the drive gear sleeve (33). At this time, the unlocking rod (54) and the limiting plate (32) rotate synchronously to drive the limiting strip (53) to rotate.

6. A smart home office recliner according to claim 5, characterized in that: The distance from the end of the limiting strip (53) inserted into the locking groove (521) to the rotation center of the limiting strip (53) is less than the distance from the opposite end of the limiting strip (53) to the rotation center of the limiting strip (53); The support rotating seat (51) includes a support plate (511) and a rotating lug (512). After the handrail plate (4) rotates, it abuts against the top of the support plate (511). The handrail rotating shaft (52) is rotatably mounted on the rotating lug (512). The limiting half-tooth ring (34) has a protruding tooth portion (341) and a smooth portion (342), the limiting plate (32) is located on the smooth portion (342), and the smooth portion (342) does not mesh with the driving gear sleeve (33).

7. The smart home office recliner according to claim 1, characterized in that: It also includes a caster support frame (6), which is located at the bottom of the base (11). The backrest (21) has an arc groove (215) that limits the rotation angle of the backrest (21). The backrest pull rod (31) is partially inserted into the arc groove (215). There are two side plates (23), which are located on opposite sides of the backrest (21). When the drive rod (241) moves, it simultaneously drives the two side plates (23) to extend and retract synchronously.

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