CN114886263A

CN114886263A - Intelligent functional sofa

Info

Publication number: CN114886263A
Application number: CN202210438399.6A
Authority: CN
Inventors: 许志坚; 刘亮
Original assignee: Livable Home Technology Co ltd
Current assignee: Livable Home Technology Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-12

Abstract

The application relates to the field of sofas, in particular to an intelligent functional sofa which comprises a sofa body and a base, wherein the sofa body is fixed on the base; the base is provided with two lifting grooves, lifting plates are arranged in the two lifting grooves in a sliding manner, the base is provided with a mounting groove, and a driving device for driving the two lifting plates to lift is arranged in the mounting groove; the driving device comprises a driving mechanism and two linkage mechanisms, wherein each linkage mechanism comprises a bearing block, a rotating rod, a straight gear and a rack; the bearing block is fixed on the base, and the rotating rod penetrates through the bearing block and is in rotating connection with the bearing block; the straight gear is sleeved at the end part of the rotating rod and is fixedly connected with the rotating rod, the rack is fixed on the lifting plate, and the straight gear is meshed with the rack; the driving mechanism is used for driving the two rotating rods to rotate simultaneously. This application is convenient for adjust the height of sofa.

Description

Intelligent functional sofa

Technical Field

The application relates to the field of sofas, in particular to an intelligent functional sofa.

Background

The intelligent home system utilizes advanced computer technology, intelligent cloud control, comprehensive wiring technology and medical electronic technology according to principles, integrates individual requirements, organically combines various subsystems related to home life such as security, curtain control, gas valve control, information appliances, scene linkage, health care, health epidemic prevention, security and the like, and realizes 'people-oriented' brand-new home through networked comprehensive intelligent control and management.

The related art discloses an intelligent voice sofa, which comprises a sofa body, a voice acquisition module, a central processing module and a voice feedback module; the voice acquisition module is used for acquiring a voice instruction of a user; the central processing module receives the voice instruction signal acquired by the voice acquisition module and sends an operation instruction to an equipment end or the voice feedback module according to the voice instruction signal; the voice feedback module is used for receiving the output signal of the central processing module and feeding back the output signal to a user; the voice acquisition module and the voice feedback module are both arranged on the sofa body.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the height of sofa body is fixed unchangeable, can't satisfy different height people's demand.

Disclosure of Invention

In order to facilitate the height of adjusting the sofa body, this application provides an intelligent function sofa.

The application provides an intelligent function sofa adopts following technical scheme:

an intelligent functional sofa comprises a sofa body and a base, wherein the sofa body is fixed on the base; the base is provided with two lifting grooves, lifting plates are arranged in the two lifting grooves in a sliding manner, the base is provided with a mounting groove, and a driving device for driving the two lifting plates to lift is arranged in the mounting groove;

the driving device comprises a driving mechanism and two linkage mechanisms, wherein each linkage mechanism comprises a bearing block, a rotating rod, a straight gear and a rack; the bearing block is fixed on the base, and the rotating rod penetrates through the bearing block and is in rotating connection with the bearing block; the straight gear is sleeved at the end part of the rotating rod and is fixedly connected with the rotating rod, the rack is fixed on the lifting plate, and the straight gear is meshed with the rack; the driving mechanism is used for driving the two rotating rods to rotate simultaneously.

By adopting the technical scheme, the two lifting plates have a stable supporting effect on the base, so that the sofa body is stably supported; when the height of the sofa body needs to be adjusted, the two rotary rods are driven to rotate by the driving mechanism at the same time, the two rotary rods drive the two straight gears to rotate respectively, and the two straight gears drive the two racks to slide respectively in the rotating process, so that the two lifting plates are driven to slide in the two lifting grooves respectively, so that the base and the two supporting plates slide relatively, the height of the base is adjusted, and the height of the sofa body is adjusted; simultaneously, the two lifting grooves have a guiding effect on the base, so that the lifting stability of the base is improved.

Optionally, the driving device comprises a worm wheel, a worm, a linkage rod, a first bevel gear, a second bevel gear, a driving rod, a motor and two supporting blocks; two ends of the linkage rod are respectively connected with two rotating rods, and the worm wheel is sleeved on the linkage rod and is fixedly connected with the linkage rod; the two supporting blocks are fixed on the base, two ends of the worm are respectively in rotating connection with the two supporting blocks, and the worm is meshed with the worm wheel; the motor is fixed on the base, and the first helical gear is sleeved on an output shaft of the motor and is fixedly connected with the output shaft of the motor; the driving rod is fixed at the end part of the worm, the second bevel gear is sleeved on the driving rod and fixedly connected with the driving rod, and the first bevel gear is meshed with the second bevel gear.

By adopting the technical scheme, the motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the driving rod to rotate, the driving rod drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the linkage rod to rotate, and two ends of the linkage rod respectively drive the two rotating rods to rotate, so that the height of the sofa body is adjusted; because the worm gear structure has a self-locking function, the base and the sofa body cannot slide downwards under the action of self gravity, and the stability of the sofa body supported by the two supporting plates is improved; simultaneously under the effect of first helical gear and second helical gear, changed the installation direction of motor to be convenient for the staff installs the motor in the mounting groove.

Optionally, a driving block is fixedly arranged at the end of the rotating rod, and the section of the driving block is polygonal; the end part of the linkage rod is fixedly provided with a linkage block, the linkage block is provided with a driving groove, and the outer side wall of the driving block is abutted against the inner side wall of the driving groove.

By adopting the technical scheme, the cross section of the driving block is polygonal, and the outer side wall of the driving block is abutted to the inner side wall of the driving groove, so that the linkage rod drives the linkage block to rotate in the rotating process, the linkage block drives the driving block to rotate in the rotating process, and the cross section of the driving block is polygonal, and the inner side wall of the driving block is abutted to the inner side wall of the driving groove, so that the linkage rod cannot rotate relative to the rotating rod in the rotating process.

Optionally, a positioning block is fixedly arranged on the lifting plate, a plurality of grooves are formed in the positioning block, a plurality of convex blocks are fixedly arranged on the rack, and the outer side walls of the plurality of convex blocks are respectively abutted against the inner side walls of the plurality of grooves.

By adopting the technical scheme, the straight gear drives the rack to lift in the rotating process, and the rack drives the lifting plate to lift in the lifting process; because rack and locating piece all are fixed in on the lifter plate, simultaneously because the lateral wall of a plurality of lugs on the rack respectively the butt in the inside wall of a plurality of recesses on the locating piece, consequently the locating piece also has limiting displacement to the rack to make the rack be difficult for taking place relative slip with the backup pad.

Optionally, the side wall of the positioning block abuts against the side wall of the rack.

Through adopting above-mentioned technical scheme, the locating piece has the positioning action to the lateral wall of rack, has further increased the fastness that the rack was installed on the lifter plate.

Optionally, the positioning block is fixedly provided with an adjusting block, the adjusting block is provided with an adjusting groove, a bolt penetrates through the adjusting groove, and the bolt is in threaded fit with the lifting plate.

Through adopting above-mentioned technical scheme, the staff is fixed in the lifter plate with the regulating block through the bolt on to be fixed in the lifter plate with the locating piece on, increased the convenience that the staff installed and dismantled the locating piece.

Optionally, the length direction of the adjusting groove is perpendicular to the length direction of the rack.

Through adopting above-mentioned technical scheme, the staff is convenient for adjust the position of locating piece towards the direction that is close to or keeps away from the rack to guarantee the lateral wall butt of lug in the inside wall of recess.

Optionally, the fixed anticreep piece that is provided with on the lifter plate, the anticreep groove has been seted up on the base, the anticreep groove with the lifter groove communicates mutually, the both ends in anticreep groove all are the closed setting, the anticreep piece with the cooperation of sliding in anticreep groove.

Through adopting above-mentioned technical scheme, the lifter plate is at the in-process that goes up and down, and the anticreep piece slides in the anticreep groove, and the anticreep groove not only has the guide effect to the anticreep piece, still has the limiting displacement to the anticreep piece simultaneously, can restrict the stroke of sliding of anticreep piece, and then can restrict the stroke of sliding of lifter plate, avoids sliding outside the lifter groove because of the stroke of sliding of lifter plate is too big.

Optionally, a fixed block is fixedly arranged on the bearing block, a bolt penetrates through the fixed block, and the bolt is in threaded fit with the base.

Through adopting above-mentioned technical scheme, the nut and the base of bolt have the clamping action to the fixed block to there is the clamping action to the carrier block, thereby increased the staff installation and the convenience of dismantling the fixed block.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the two lifting plates have a stable supporting function on the base, so that the sofa body is stably supported; when the height of the sofa body needs to be adjusted, the two rotary rods are driven to rotate by the driving mechanism at the same time, the two rotary rods drive the two straight gears to rotate respectively, and the two straight gears drive the two racks to slide respectively in the rotating process, so that the two lifting plates are driven to slide in the two lifting grooves respectively, so that the base and the two supporting plates slide relatively, the height of the base is adjusted, and the height of the sofa body is adjusted; meanwhile, the two lifting grooves have a guiding function on the base, so that the lifting stability of the base is improved;

2. the motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the driving rod to rotate, the driving rod drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the linkage rod to rotate, and two ends of the linkage rod respectively drive the two rotating rods to rotate, so that the height of the sofa body is adjusted; because the worm gear structure has a self-locking function, the base and the sofa body cannot slide downwards under the action of self gravity, and the stability of the sofa body supported by the two supporting plates is improved; meanwhile, under the action of the first bevel gear and the second bevel gear, the mounting direction of the motor is changed, so that workers can mount the motor in the mounting groove conveniently;

3. because the cross-section of drive block is the polygon, and the lateral wall butt of drive block in the inside wall of drive groove, so the gangbar drives the linkage block rotatory at rotatory in-process, and the linkage block drives the drive block rotatory at rotatory in-process, because the cross-section of drive block is the polygon, and the inside wall butt of drive block in the inside wall of drive groove, so the gangbar can not take place relative rotation with the rotary rod at rotatory in-process.

Drawings

Fig. 1 is a schematic structural diagram of a smart sofa according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of another perspective of the intelligent sofa in the embodiment of the present application.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a partially enlarged view of a portion B in fig. 2.

Fig. 5 is a partially enlarged view of a portion C in fig. 2.

Fig. 6 is a sectional view of the smart sofa according to the embodiment of the present application.

Description of reference numerals:

1. a sofa body; 11. a sofa cushion; 12. a sofa backrest; 13. a sofa armrest; 2. a base; 21. a lifting groove; 22. mounting grooves; 23. a drop-proof groove; 3. a lifting plate; 31. an anti-drop block; 4. a drive mechanism; 41. a worm gear; 42. a worm; 43. a linkage rod; 431. a linkage block; 432. a drive slot; 44. a first helical gear; 45. a second helical gear; 46. a drive rod; 47. a motor; 48. a support block; 49. heightening blocks; 5. a linkage mechanism; 51. a bearing block; 511. a fixed block; 52. rotating the rod; 521. a drive block; 53. a spur gear; 54. a rack; 55. a bump; 6. positioning a block; 61. a groove; 7. a regulating block; 71. and (4) adjusting the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

When the intelligent sofa is stably placed on the ground, the length direction of the intelligent sofa is defined as a first direction and the width direction of the intelligent sofa is defined as a second direction in the horizontal direction, so that the intelligent sofa is described on the basis.

An intelligent sofa, referring to fig. 1 and 2, comprises a sofa body 1 and a base 2, wherein the sofa body 1 is fixed on the base 2. The sofa body 1 comprises three sofa cushions 11, three sofa backrest 12 and two sofa armrests 13, the three sofa cushions 11 are all arranged horizontally, the three sofa cushions 11 are all fixed on the upper surface of the base 2, and the three sofa cushions 11 are sequentially arranged along the length direction of the base 2. The three sofa backrest 12 are all obliquely arranged, the three sofa backrest 12 are all fixed on the upper surface of the base 2, and the bottom ends of the three sofa backrest 12 are respectively abutted against one side of the three sofa cushions 11. Two sofa armrests 13 are fixed on the upper surface of the base 2, and the three sofa cushions 11 are positioned between the two sofa armrests 13.

Referring to fig. 2 and 3, two lifting grooves 21 have been seted up to the lower surface of base 2, and two lifting grooves 21 all extend along the second direction, all slide in two lifting grooves 21 and be provided with lifter plate 3, and mounting groove 22 has still been seted up to the lower surface of base 2, and mounting groove 22 extends along the first direction, and the both ends of mounting groove 22 are linked together with two lifting grooves 21 respectively, are provided with the drive arrangement who is used for driving two lifter plates 3 to go up and down in the mounting groove 22.

With continued reference to fig. 2 and 3, the drive arrangement comprises a drive mechanism 4 and two linkage mechanisms 5, the two linkage mechanisms 5 being symmetrical to each other. Each linkage mechanism 5 comprises a bearing block 51, a rotating rod 52, a straight gear 53 and a rack 54, wherein the bearing block 51 is fixed at the bottom of the mounting groove 22. The rotating rod 52 extends in a first direction, and the rotating rod 52 passes through the bearing block 51 and is rotatably connected with the bearing block 51. The spur gear 53 is sleeved at one end of the rotating rod 52 close to the lifting plate 3 and is fixedly connected with the rotating rod 52, the rack 54 is fixed on the side wall of the lifting plate 3 close to the rotating rod 52, the rack 54 extends along the vertical direction, and the spur gear 53 is meshed with the rack 54. The driving mechanism 4 is used to simultaneously drive the two rotating rods 52 to rotate.

Referring to fig. 3 and 4, the driving mechanism 4 includes a worm wheel 41, a worm 42, a linkage rod 43, a first bevel gear 44, a second bevel gear 45, a driving rod 46, a motor 47, and two supporting blocks 48. The linkage rod 43 extends along a first direction, and two ends of the linkage rod 43 are respectively connected with the two rotating rods 52. The two supporting blocks 48 are fixed in the mounting groove 22, and the two supporting blocks 48 are parallel to each other. The worm 42 extends along the second direction, two ends of the worm 42 respectively penetrate through the two supporting blocks 48, and two ends of the worm 42 are respectively connected with the two supporting blocks 48 in a rotating manner. The worm wheel 41 is sleeved on the linkage rod 43, and the worm wheel 41 is meshed with the worm 42. A heightening block 49 is fixedly arranged in the mounting groove 22, the motor 47 is fixed on the lower surface of the heightening block 49, and the first bevel gear 44 is sleeved on the output shaft of the motor 47 and is fixedly connected with the output shaft of the motor 47. The driving rod 46 is fixed at one end of the worm 42, the second bevel gear 45 is sleeved on the driving rod 46 and fixedly connected with the driving rod 46, and the first bevel gear 44 is meshed with the second bevel gear 45.

Referring to fig. 2 and 5, linkage blocks 431 are integrally formed at both ends of the linkage rod 43, and driving grooves 432 are formed at both ends of the two linkage blocks 431. Correspondingly, the driving blocks 521 are integrally formed at one ends of the two rotating rods 52 close to the linkage rod 43, the cross sections of the driving blocks 521 are polygonal, and the outer side walls of the two driving blocks 521 are respectively abutted against the inner side walls of the two driving grooves 432. Since the cross section of the driving block 521 is polygonal, and the outer sidewall of the driving block 521 abuts against the inner sidewall of the driving groove 432, the linkage rod 43 drives the linkage block 431 to rotate in the rotation process, the linkage block 431 drives the driving block 521 to rotate in the rotation process, and since the cross section of the driving block 521 is polygonal, and the inner sidewall of the driving block 521 abuts against the inner sidewall of the driving groove 432, the linkage rod 43 does not rotate relative to the rotating rod 52 in the rotation process.

Referring to fig. 3 and 4, when the height of the sofa body 1 needs to be adjusted by a worker, the motor 47 drives the first bevel gear 44 to rotate, the first bevel gear 44 drives the second bevel gear 45 to rotate, the second bevel gear 45 drives the driving rod 46 to rotate, the driving rod 46 drives the worm 42 to rotate, the worm 42 drives the worm wheel 41 to rotate, the worm wheel 41 drives the linkage rod 43 to rotate, two ends of the linkage rod 43 respectively drive the two rotating rods 52 to rotate, the two rotating rods 52 respectively drive the two straight gears 53 to rotate, because the two straight gears 53 are respectively meshed with the two racks 54, the two straight gears 53 respectively drive the two racks 54 to slide along the vertical direction in the rotating process, and the two racks 54 respectively drive the two lifting plates 3 to lift, thereby adjusting the height of the sofa body 1. Because worm wheel 41 worm 42 structure has self-locking function, consequently base 2 and sofa body 1 can not be down slided under the effect of self gravity, increased two backup pads and supported sofa body 1's stability. Meanwhile, under the action of the first bevel gear 44 and the second bevel gear 45, the installation direction of the motor 47 is changed, so that the motor 47 can be conveniently installed in the installation groove 22 by workers.

Referring to fig. 3, two opposite sidewalls of each bearing block 51 are integrally formed with fixing blocks 511, and upper surfaces of the two fixing blocks 511 abut against the bottoms of the mounting grooves 22. All wear to be equipped with two bolts on every fixed block 511, every bolt all with base 2 screw-thread fit to in being fixed in mounting groove 22 with carrier block 51, increased the convenience that the staff installed and dismantled carrier block 51.

Referring to fig. 6, two opposite sidewalls of the lifting plate 3 are integrally formed with two anti-falling blocks 31, and the upper surfaces of the two anti-falling blocks 31 are flush with the upper surface of the lifting plate 3. Anticreep groove 23 has all been seted up at the both ends of every lift groove 21, and every anticreep groove 23 all is linked together with lift groove 21, and the top and the bottom of anticreep groove 23 all are the closure setting, and anticreep piece 31 and anticreep groove 23 cooperation of sliding. Lifter plate 3 is at the in-process that goes up and down, and anticreep piece 31 slides in anticreep groove 23, and anticreep groove 23 not only has the guide effect to anticreep piece 31, still has the limiting displacement to anticreep piece 31 simultaneously, can restrict the stroke of sliding of anticreep piece 31, and then can restrict the stroke of sliding of lifter plate 3, avoids sliding outside lifter plate 21 because of lifter plate 3's the stroke of sliding is too big.

Referring to fig. 3, a positioning block 6 is fixedly arranged on the sidewall of the lifting plate 3, three grooves 61 are formed in the sidewall of the positioning block 6, three projections 55 are integrally formed on the sidewall of the rack 54 away from the spur gear 53, the three projections 55 are distributed at equal intervals in the vertical direction, the outer sidewalls of the three projections 55 respectively abut against the inner sidewalls of the three grooves 61, and meanwhile, the sidewall of the rack 54 abuts against the sidewall of the positioning block 6. Straight-toothed gear 53 drives rack 54 to go up and down in the rotating process, rack 54 drives lifter plate 3 to go up and down in the lifting process, because rack 54 and locating piece 6 are all fixed on lifter plate 3, simultaneously because the lateral wall of a plurality of lugs 55 on rack 54 butts against the inside wall of a plurality of recesses 61 on locating piece 6 respectively, so locating piece 6 has limiting effect to rack 54 to make rack 54 difficult to take place relative slip with the backup pad.

With continued reference to fig. 3, the side wall of the positioning block 6 away from the rack 54 is integrally formed with an adjusting block 7, and the side wall of the adjusting block 7 abuts against the side wall of the lifting plate 3. Two through adjusting grooves 71 are formed in the adjusting block 7, and each adjusting groove 71 extends along the second direction. Each adjusting groove 71 is provided with a bolt, and each bolt is in threaded fit with the lifting plate 3. The staff is fixed in the lifter plate 3 with the regulating block 7 through the bolt to be fixed in the lifter plate 3 with the locating piece 6 on, increased the staff and installed and the convenience of dismantling locating piece 6. Meanwhile, the worker can conveniently adjust the position of the positioning block 6 towards the direction close to or far away from the rack 54, so as to ensure that the outer side wall of the projection 55 abuts against the inner side wall of the groove 61

The implementation principle of the intelligent functional sofa of the application is as follows: when the height of the sofa body 1 needs to be adjusted by an operator, the motor 47 drives the first bevel gear 44 to rotate, the first bevel gear 44 drives the second bevel gear 45 to rotate, the second bevel gear 45 drives the driving rod 46 to rotate, the driving rod 46 drives the worm 42 to rotate, the worm 42 drives the worm gear 41 to rotate, the worm gear 41 drives the linkage rod 43 to rotate, two ends of the linkage rod 43 respectively drive the two rotating rods 52 to rotate, the two rotating rods 52 respectively drive the two straight gears 53 to rotate, because the two straight gears 53 are respectively meshed with the two racks 54, the two straight gears 53 respectively drive the two racks 54 to slide along the vertical direction in the rotating process, the two racks 54 respectively drive the two lifting plates 3 to lift, and therefore the height of the sofa body 1 is adjusted. Because worm wheel 41 worm 42 structure has self-locking function, consequently base 2 and sofa body 1 can not be under the effect of self gravity gliding, has increased the stability that two backup pads supported sofa body 1.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An intelligent functional sofa which is characterized in that: the sofa comprises a sofa body (1) and a base (2), wherein the sofa body (1) is fixed on the base (2); the base (2) is provided with two lifting grooves (21), lifting plates (3) are arranged in the two lifting grooves (21) in a sliding manner, the base (2) is provided with a mounting groove (22), and a driving device for driving the two lifting plates (3) to lift is arranged in the mounting groove (22);

the driving device comprises a driving mechanism (4) and two linkage mechanisms (5), wherein each linkage mechanism (5) comprises a bearing block (51), a rotating rod (52), a straight gear (53) and a rack (54); the bearing block (51) is fixed on the base (2), and the rotating rod (52) penetrates through the bearing block (51) and is in rotating connection with the bearing block (51); the straight gear (53) is sleeved at the end part of the rotating rod (52) and is fixedly connected with the rotating rod (52), the rack (54) is fixed on the lifting plate (3), and the straight gear (53) is meshed with the rack (54); the driving mechanism (4) is used for driving the two rotating rods (52) to rotate simultaneously.

2. The intelligent sofa of claim 1, wherein: the driving mechanism (4) comprises a worm wheel (41), a worm (42), a linkage rod (43), a first bevel gear (44), a second bevel gear (45), a driving rod (46), a motor (47) and two supporting blocks (48); two ends of the linkage rod (43) are respectively connected with two rotating rods (52), and the worm wheel (41) is sleeved on the linkage rod (43) and is fixedly connected with the linkage rod (43); the two supporting blocks (48) are fixed on the base (2), two ends of the worm (42) are respectively in rotating connection with the two supporting blocks (48), and the worm (42) is meshed with the worm wheel (41); the motor (47) is fixed on the base (2), and the first bevel gear (44) is sleeved on an output shaft of the motor (47) and is fixedly connected with the output shaft of the motor (47); the driving rod (46) is fixed at the end part of the worm (42), the second bevel gear (45) is sleeved on the driving rod (46) and fixedly connected with the driving rod (46), and the first bevel gear (44) is meshed with the second bevel gear (45).

3. The intelligent sofa of claim 2, wherein: a driving block (521) is fixedly arranged at the end part of the rotating rod (52), and the section of the driving block (521) is polygonal; the end part of the linkage rod (43) is fixedly provided with a linkage block (431), a driving groove (432) is formed in the linkage block (431), and the outer side wall of the driving block (521) abuts against the inner side wall of the driving groove (432).

4. The intelligent sofa of claim 1, wherein: the lifting plate (3) is fixedly provided with a positioning block (6), the positioning block (6) is provided with a plurality of grooves (61), the rack (54) is fixedly provided with a plurality of lugs (55), and the outer side walls of the lugs (55) are respectively abutted to the inner side walls of the grooves (61).

5. The intelligent sofa of claim 4, wherein: the side wall of the positioning block (6) is abutted against the side wall of the rack (54).

6. The intelligent sofa of claim 4, wherein: the lifting plate is characterized in that an adjusting block (7) is fixedly arranged on the positioning block (6), an adjusting groove (71) is formed in the adjusting block (7), a bolt penetrates through the adjusting groove (71), and the bolt is in threaded fit with the lifting plate (3).

7. The intelligent sofa of claim 6, wherein: the length direction of the adjusting groove (71) is perpendicular to the length direction of the rack (54).

8. The intelligent sofa of claim 1, wherein: the anti-falling device is characterized in that an anti-falling block (31) is fixedly arranged on the lifting plate (3), an anti-falling groove (23) is formed in the base (2), the anti-falling groove (23) is communicated with the lifting groove (21), two ends of the anti-falling groove (23) are sealed, and the anti-falling block (31) is matched with the anti-falling groove (23) in a sliding mode.

9. The intelligent sofa of claim 1, wherein: the bearing block (51) is fixedly provided with a fixing block (511), a bolt penetrates through the fixing block (511), and the bolt is in threaded fit with the base (2).