CN114009995B

CN114009995B - Domestic intelligent sofa with adjustable supportability

Info

Publication number: CN114009995B
Application number: CN202111252461.4A
Authority: CN
Inventors: 王玉珏
Original assignee: Liaoning Vocational College of Light Industry
Current assignee: Liaoning Vocational College of Light Industry
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2023-05-16
Anticipated expiration: 2041-10-27
Also published as: CN114009995A

Abstract

The invention discloses a household intelligent sofa with adjustable supportability, which comprises a base, armrests, a cushion and a backrest, wherein the armrests, the cushion and the backrest are arranged on the base, bag bodies are arranged in the cushion and the backrest, magnetorheological fluid is filled in the bag bodies, coils matched with the magnetorheological fluid are arranged around the bag bodies, and a control switch electrically connected with the coils is arranged on the armrests. According to the invention, the magnitude of the magnetic flux passing through the coil is controlled by controlling the switch, so that the magnitude of the magnetic flux of the coil is controlled, the magnetorheological fluid presents Newtonian fluid characteristics of low viscosity in the absence of an external magnetic field, presents guest-han fluid characteristics of high viscosity and low fluidity in the presence of an external magnetic field, and meanwhile, the viscosity magnitude and the magnetic flux of the fluid have a corresponding relation, so that the capsule filled with the magnetorheological fluid can control the softness and hardness degree of the capsule through controlling the switch, the energy consumption for regulating the softness and hardness degree by using the magnetorheological fluid is low, the magnetorheological fluid is easy to control, the response speed of millisecond level is realized, and the regulating effect is good.

Description

Domestic intelligent sofa with adjustable supportability

Technical Field

The invention relates to the technical field of household intelligent sofas, in particular to a household intelligent sofa with adjustable supportability.

Background

The sofa is a soft-cushion multi-seat chair, two sides of the sofa are provided with armrests, the sofa is sourced from western countries, asia is introduced, the sofa becomes one of important points of western decoration or modern home design, the whole sofa is comfortable, the sofa is very common furniture, and the sofa is widely applied to occasions such as family living rooms, hotels and business conferences. The sofa is comfortable in sitting feeling, changeable in shape and capable of adapting to various decoration styles, so that the sofa is deeply favored by people. Along with the improvement of the living standard of people, the functional requirements on the sofa are increasingly abundant.

The types of sofas are various, and in the society of today, residents living in cities are limited by economic conditions, the occupied area of the residents is limited, so that sofas with more functions and smaller occupied volume are popular, wherein single sofas are convenient to transport and install due to light weight and small occupied area, and the single sofas are widely used, but the common single sofas are of fixed size and structure. Most single sofa among the prior art is the sofa of single hardness, and the sofa type that can adjust the degree of softness is less, realizes soft regulation through air or spring in most, and the regulation effect is not good, and the while structure is fixed, and the function is single, and the practicality is relatively poor. Therefore, a domestic intelligent sofa with adjustable support is provided.

Disclosure of Invention

The invention aims at: in order to solve the problems, the household intelligent sofa with adjustable supportability is provided.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a domestic intelligent sofa of supportability adjustable, includes base and handrail, cushion and the back of setting on the base, the inside bag body that all is equipped with of cushion and back, the inside magnetorheological fluid that has filled of bag body, bag body is equipped with all around with magnetorheological fluid complex coil, be equipped with the control switch with coil electric connection on the handrail, base up end fixedly connected with mount, one side rotation connection has first guide rail, second guide rail and third guide rail on the mount respectively, first logical groove has been seted up on the first guide rail, sliding connection has first slide bar in the first logical groove, first slide bar runs through first logical groove and fixedly connected with and first logical groove sliding connection's second mount pad, second mount pad and back fixed connection, sliding connection has the link on second guide rail and the third guide rail, second logical groove has been seted up to link, second logical groove inside sliding connection has the second slide bar, one side rotation connection has the first slide bar, sliding connection has the first three-way leg to roll down in the first slide bar, the cushion has the second three-way to roll down support the first one side of slide bar, the cushion is connected with first three-way, the cushion is kept away from the pivot, three-way connection has one side of first support leg and the cushion to roll-down, three-way connection has the first support leg, and the cushion is connected with the first one side.

Preferably, the buffer mechanism comprises a supporting rod, a piston cylinder and a piston rod, wherein one side of the third guide rail, which is far away from the third sliding rod, is rotationally connected with the supporting rod, the supporting rod is rotationally connected with the lower end face of the piston cylinder, the piston rod is arranged in the piston cylinder, and the upper end face of the piston rod extends to the upper side of the piston cylinder and is rotationally connected with the lower end of the connecting plate.

Preferably, the supporting mechanism comprises a barrel, a connecting shaft, a first connecting rod, a second connecting rod, a gear, a rack, a piston, a baffle and a spring, wherein the upper end face of the barrel is fixedly connected with the lower end face of a leg support, the barrel is rotationally connected with the connecting shaft, the connecting shaft is fixedly connected with one end of the first connecting rod, the other end of the first connecting rod is rotationally connected with one end of the second connecting rod, the other end of the second connecting rod is rotationally connected with the side wall of the cushion, one end of the connecting shaft extends to the inside of the barrel and is fixedly connected with the coaxially arranged gear, the rack is connected with the gear in a meshed manner, one end of the rack is fixedly connected with the piston matched with the inner surface of the barrel, the other end of the rack is fixedly connected with the baffle, the spring is arranged in the barrel, and two ends of the spring are respectively fixedly connected with the baffle and the inner side surface wall of the barrel.

Preferably, two support mechanisms are arranged and symmetrically arranged on two sides of the leg rest.

Preferably, the cushion and the backrest are both provided with cavities, the first mounting seat extends to the interior of the cushion and is fixedly connected with the inner surface wall of the cushion, and the second mounting seat extends to the interior of the backrest and is fixedly connected with the inner surface wall of the backrest.

Preferably, the fixing frame, the first guide rail, the second guide rail and the third guide rail are all two, and the two fixing frames, the first guide rail, the second guide rail and the third guide rail are all symmetrically arranged on two sides of the connecting plate relative to the connecting plate.

Preferably, the first guide rail, the second guide rail and the third guide rail are arranged in parallel, and an included angle between the first guide rail and the fixing frame is the same as an included angle between the upper end surface of the seat cushion and an inclined surface of one side of the backrest, which is close to the seat cushion.

Preferably, the included angle between the upper end surface of the cushion and the inclined surface of the backrest, which is close to one side of the cushion, is 120-135 degrees.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. the utility model provides a through being provided with the utricule inside cushion and back, the internal portion of utricule is filled with magnetorheological fluid, through the electric current size of control switch control through the coil, thereby the size of the magnetic flux of control coil, magnetorheological fluid presents low viscosity's Newton fluid characteristic when outside does not have the magnetic field, appear to high viscosity, low flowable guest-to-han fluid characteristic when externally applying the magnetic field, the viscosity size and the magnetic flux of liquid have the correspondence simultaneously, make the utricule that is filled with magnetorheological fluid can be through the soft or hard degree of control switch control utricule, compared in traditional soft or hard degree regulation, utilize magnetorheological fluid to adjust soft or hard degree conversion energy consumption low, easy control, have millisecond response speed simultaneously, the regulating effect is better.

2. This application is through being equipped with the connecting plate, when the user sits on the cushion, drive the cushion and move down, drive the link through first mount pad and slide down in second guide rail and third guide rail, drive the second slide bar and slide in the second through-groove, thereby drive the connecting plate and rotate around the third slide bar, make the connecting plate keep away from second slide bar one end and move up, drive the piston rod simultaneously in the piston tube, make originally with the outside piston tube inside that exists pressure differential become with the state that external atmospheric pressure keeps balance, the connecting plate removes and drives first slide bar and slide in the third through-groove, drive the second mount pad simultaneously and move up, make the back shift up, convenient to use person leans on, when the user leaves the cushion, naturally decline under the action of the gravity of back and connecting plate self, because the inside and external atmospheric pressure keep balanced state, make the connecting plate reverse movement receive certain resistance when driving the piston rod and remove, thereby it descends slowly to drive the back, avoid the back to drop rapidly after the cushion to bump and damage, simultaneously, will occupy the back falls down, high practicality has been saved when not using.

3. This application holds in the palm through being equipped with the leg, when the user needs to use the leg to hold in the palm, manual leg is broken and is held in the palm, make the leg hold in the palm revolute shaft rotation, drive head rod and second connecting rod and take place relative rotation, drive the connecting axle rotation, the connecting axle rotates and drive the gear rotation, make the rack remove, drive piston and baffle remove, make the inside atmospheric pressure of barrel change, the spring takes place to deform simultaneously, when the leg holds in the palm when keeping level with the cushion up end, the inside atmospheric pressure of barrel reaches equilibrium with the external world owing to the removal of piston, the spring reaches natural state simultaneously, do not produce thrust or pulling force to the baffle, make the leg hold in the position that keeps flushing with the cushion up end, user's comfort level and use experience have been improved.

Drawings

FIG. 1 shows a schematic overall structure provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram showing another state of the overall structure provided according to an embodiment of the present invention;

FIG. 3 shows a schematic diagram of an internal structure provided in accordance with an embodiment of the present invention;

FIG. 4 shows a schematic view of an internal partial structure provided in accordance with an embodiment of the present invention;

FIG. 5 is an exploded view showing the structure of a buffer mechanism according to an embodiment of the present invention;

FIG. 6 shows a schematic structural diagram of a support mechanism provided according to an embodiment of the present invention;

fig. 7 shows a cross-sectional view of a support mechanism structure provided in accordance with an embodiment of the present invention.

Legend description:

1. a base; 2. an armrest; 3. a cushion; 4. a backrest; 5. a leg rest; 6. a bladder; 7. a control switch; 8. a fixing frame; 9. a first guide rail; 10. a first through groove; 11. a first slide bar; 12. a second guide rail; 13. a third guide rail; 14. a connecting frame; 15. a first mount; 16. a second through slot; 17. a second slide bar; 18. a third slide bar; 19. a connecting plate; 20. a third through slot; 21. a second mounting base; 22. a support rod; 23. a piston cylinder; 24. a piston rod; 25. a rotating shaft; 26. a cylinder; 27. a connecting shaft; 28. a first connecting rod; 29. a second connecting rod; 30. a gear; 31. a rack; 32. a piston; 33. a baffle; 34. and (3) a spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the present invention provides a technical solution:

the utility model provides a domestic intelligent sofa with adjustable supportability, including base 1 and handrail 2, cushion 3 and back 4 of setting on base 1, cushion 3 and back 4 are inside all to be equipped with cell body 6, cell body 6 is inside to be filled with magnetorheological fluid, cell body 6 is equipped with around with magnetorheological fluid matched with coil, be equipped with on handrail 2 with coil electric connection's control switch 7, base 1 up end fixedly connected with mount 8, the integrated into one piece has first guide rail 9, second guide rail 12 and third guide rail 13 respectively in the mount 8 upper end, first open slot 10 has been seted up on the first guide rail 9, sliding connection has first slide bar 11 in the first open slot 10, first slide bar 11 runs through first open slot 10 and fixedly connected with and first open slot 10 sliding connection's second mount pad 21, second mount pad 21 and back 4 fixed connection, sliding connection has link 14 on second guide rail 12 and the third guide rail 13, the connecting frame 14 is far away from one side of the second guide rail 12 and is provided with a second through groove 16, a second slide bar 17 is connected in a sliding manner in the second through groove 16, one side of the third guide rail 13 is rotationally connected with a third slide bar 18, the third slide bar 18 is rotationally connected with a connecting plate 19, the second slide bar 17 is rotationally connected with one side of the connecting plate 19, one side of the connecting plate 19 far away from the second slide bar 17 is provided with a third through groove 20, the first slide bar 11 penetrates through the third through groove 20 and is in sliding connection with the third through groove 20, one end of the connecting frame 14 far away from the second guide rail 12 is fixedly connected with a first mounting seat 15, the first mounting seat 15 is fixedly connected with the cushion 3, the lower end of the connecting plate 19 is provided with a buffer mechanism to slow down the descending speed of the backrest 4, the armrest 2 is rotationally connected with a leg rest 5 matched with the cushion 3 through a rotating shaft 25, a supporting mechanism is arranged between the leg rest 5 and the cushion 3 to form a support to the leg rest 5, the buffer mechanism comprises a supporting bar 22, the piston cylinder 23 and the piston rod 24, the third guide rail 13 is connected with the bracing piece 22 in a rotary way far away from one side of the third slide bar 18, the bracing piece 22 is connected with the lower end face of the piston cylinder 23 in a rotary way, the piston rod 24 is arranged in the piston cylinder 23, and the upper end face of the piston rod 24 extends to the upper side of the piston cylinder 23 and is connected with the lower end of the connecting plate 19 in a rotary way. The supporting mechanism comprises a barrel 26, a connecting shaft 27, a first connecting rod 28, a second connecting rod 29, a gear 30, a rack 31, a piston 32, a baffle 33 and a spring 34, wherein the upper end face of the barrel 26 is fixedly connected with the lower end face of a leg support 5, the connecting shaft 27 is rotationally connected to the barrel 26, one end of the connecting shaft 27 is fixedly connected with one end of the first connecting rod 28, the other end of the first connecting rod 28 is rotationally connected with one end of the second connecting rod 29, the other end of the second connecting rod 29 is rotationally connected with the side wall of a cushion 3, one end of the connecting shaft 27 extends to the inside of the barrel 26 and is fixedly connected with the coaxially arranged gear 30, the rack 31 is connected to the gear 30 in a meshed manner, one end of the rack 31 is fixedly connected with the piston 32 matched with the inner surface wall of the barrel 26, the other end of the rack 31 is fixedly connected with the baffle 33, the spring 34 is arranged in the barrel 26, and two ends of the spring 34 are respectively fixedly connected with the baffle 33 and the inner side surface wall of the barrel 26. The two supporting mechanisms are symmetrically arranged on two sides of the leg support 5. The cushion 3 and the backrest 4 are both provided with cavities, the first mounting seat 15 extends to the interior of the cushion 3 and is fixedly connected with the inner surface wall of the cushion 3, and the second mounting seat 21 extends to the interior of the backrest 4 and is fixedly connected with the inner surface wall of the backrest 4. The fixing frames 8, the first guide rail 9, the second guide rail 12 and the third guide rail 13 are respectively provided with two fixing frames 8, the first guide rail 9, the second guide rail 12 and the third guide rail 13 are respectively symmetrically arranged on two sides of the connecting plate 19 relative to the connecting plate 19. The first guide rail 9, the second guide rail 12 and the third guide rail 13 are arranged in parallel, and the included angle between the first guide rail 9 and the fixed frame 8 is the same as the included angle between the upper end surface of the seat cushion 3 and the inclined surface of the backrest 4, which is close to one side of the seat cushion 3. The angle between the upper end surface of the cushion 3 and the inclined surface of the backrest 4 near the cushion 3 is 120-135 degrees.

Specifically, as shown in fig. 1, 2, 3, 4 and 6, the cushion 3 and the backrest 4 are both provided with a bag body 6, magnetorheological fluid is filled in the bag body 6, coils matched with the magnetorheological fluid are arranged around the bag body 6, a control switch 7 electrically connected with the coils is arranged on the handrail 2, the upper end surface of the base 1 is fixedly connected with a fixing frame 8, the upper end of the fixing frame 8 is respectively integrally formed with a first guide rail 9, a second guide rail 12 and a third guide rail 13, a first through groove 10 is formed on the first guide rail 9, a first slide bar 11 is connected in the first through groove 10 in a sliding manner, a second mounting seat 21 which penetrates through the first through groove 10 and is fixedly connected with the first through groove 10 in a sliding manner is arranged on the first slide bar 11, the second mounting seat 21 is fixedly connected with the backrest 4, a connecting frame 14 is connected on the second guide rail 12 and the third guide rail 13 in a sliding manner, a second through groove 16 is formed on one side of the connecting frame 14 away from the second guide rail 12, the second through groove 16 is connected with a second slide bar 17 in a sliding way, one side of the third guide rail 13 is connected with a third slide bar 18 in a rotating way, the third slide bar 18 is connected with a connecting plate 19 in a rotating way, the second slide bar 17 is connected with one side of the connecting plate 19 in a rotating way, one side of the connecting plate 19 far away from the second slide bar 17 is provided with a third through groove 20, the first slide bar 11 penetrates through the third through groove 20 and is connected with the third through groove 20 in a sliding way, one end of the connecting frame 14 far away from the second guide rail 12 is fixedly connected with a first mounting seat 15, the first mounting seat 15 is fixedly connected with the cushion 3, the lower end of the connecting plate 19 is provided with a buffer mechanism for slowing down the descending speed of the backrest 4, the armrest 2 is connected with a leg rest 5 matched with the cushion 3 in a rotating way through a rotating shaft 25, a supporting mechanism is arranged between the leg rest 5 and the cushion 3 for supporting the leg rest 5, the magnetorheological fluid is filled in the bag body 6, the magnitude of current passing through the coil is controlled through the control switch 7, so that the magnitude of magnetic flux of the coil is controlled, the magnetorheological fluid presents Newtonian fluid characteristics of low viscosity in the absence of an external magnetic field, the magnetorheological fluid presents guest-han fluid characteristics of high viscosity and low fluidity in the presence of an external magnetic field, meanwhile, the viscosity magnitude of the fluid has a corresponding relation with the magnetic flux, so that the bag body 6 filled with the magnetorheological fluid can control the softness and hardness degree of the bag body 6 through the control switch 7, compared with the traditional softness and hardness degree adjustment, the energy consumption is low when the softness and hardness degree is adjusted through the magnetorheological fluid, the magnetorheological fluid is easy to control, the response speed of millisecond level is achieved, and the adjustment effect is good.

Specifically, as shown in fig. 3 and 4, the buffer mechanism includes a support rod 22, a piston cylinder 23 and a piston rod 24, one side of the third guide rail 13 far away from the third slide rod 18 rotates to be connected with the support rod 22, the support rod 22 rotates to be connected with the lower end surface of the piston cylinder 23, the piston rod 24 is arranged inside the piston cylinder 23, the upper end surface of the piston rod 24 extends to the upper side of the piston cylinder 23 and is rotationally connected with the lower end of the connecting plate 19, when a user sits on the cushion 3, the cushion 3 is driven to move downwards, the connecting frame 14 is driven to slide downwards on the second guide rail 12 and the third guide rail 13 through the first mounting seat 15, the second slide rod 17 is driven to slide in the second through groove 16, so that the connecting plate 19 is driven to rotate around the third slide rod 18, one end of the connecting plate 19 far away from the second slide rod 17 moves upwards, and simultaneously drives the piston rod 24 to move in the piston cylinder 23, the interior of the piston cylinder 23 which is in balance with the external air pressure, simultaneously drives the first mounting seat 21 to move upwards, so that the backrest 4 is driven to move upwards, the backrest 4 is convenient to move upwards, the backrest 4 is driven to move downwards, the backrest 4 is prevented from falling down in the back rest 3, and the cushion is kept in the opposite direction, and the air pressure is not damaged when the backrest 4 falls down, and the cushion 4 is lowered, and the cushion is kept in the air pressure is lowered, and the air pressure is kept in the air pressure is lowered, and the air is free from the air, and the air is in the air, and the air is kept in the air, and the air is used.

Specifically, as shown in fig. 6 and 7, the supporting mechanism comprises a cylinder 26, a connecting shaft 27, a first connecting rod 28, a second connecting rod 29, a gear 30, a rack 31, a piston 32, a baffle 33 and a spring 34, wherein the upper end surface of the cylinder 26 is fixedly connected with the lower end surface of the leg support 5, the connecting shaft 27 is rotatably connected with the cylinder 26, the connecting shaft 27 is fixedly connected with one end of the first connecting rod 28, the other end of the first connecting rod 28 is rotatably connected with one end of the second connecting rod 29, the other end of the second connecting rod 29 is rotatably connected with the side wall of the cushion 3, one end of the connecting shaft 27 extends to the inside of the cylinder 26 and is fixedly connected with the gear 30 which is coaxially arranged, the rack 31 is connected with the meshing connection on the gear 30, one end of the rack 31 is fixedly connected with the piston 32 which is matched with the inner surface wall of the cylinder 26, the baffle 33 is fixedly connected with the other end of the rack 31, the spring 34 is arranged inside the cylinder 26, the two ends of the spring 34 are fixedly connected with the baffle 33 and the side surface wall inside the cylinder 26 respectively, the two supporting mechanisms are symmetrically arranged at two sides of the leg rest 5, when a user needs to use the leg rest 5, the leg rest 5 is manually broken off, so that the leg rest 5 rotates around the rotating shaft 25 to drive the first connecting rod 28 and the second connecting rod 29 to rotate relatively, the connecting shaft 27 is driven to rotate, the connecting shaft 27 rotates to drive the gear 30 to drive the rack 31 to move, the piston 32 and the baffle 33 to move, the air pressure inside the cylinder 26 is changed, the spring 34 is deformed, when the leg rest 5 is kept level with the upper end surface of the cushion 3, the air pressure inside the cylinder 26 is balanced with the outside due to the movement of the piston 32, the spring 34 reaches a natural state, no pushing force or pulling force is generated on the baffle 33, the leg rest 5 stays at the position kept level with the upper end surface of the cushion 3, the comfort level and the use experience of the user are improved.

Specifically, as shown in fig. 3 and 4, the cushion 3 and the backrest 4 are both provided with cavities, the first mounting seat 15 extends to the interior of the cushion 3 and is fixedly connected with the inner surface wall of the cushion 3, the second mounting seat 21 extends to the interior of the backrest 4 and is fixedly connected with the inner surface wall of the backrest 4, and the stability of the cushion 3 and the backrest 4 in the moving process is improved while the sofa is light.

Specifically, as shown in fig. 3 and 4, the fixing frames 8, the first guide rail 9, the second guide rail 12 and the third guide rail 13 are all provided with two, the two fixing frames 8, the first guide rail 9, the second guide rail 12 and the third guide rail 13 are symmetrically arranged on two sides of the connecting plate 19 with respect to the connecting plate 19, the first guide rail 9, the second guide rail 12 and the third guide rail 13 are mutually parallel, the included angle between the first guide rail 9 and the fixing frames 8 is the same as the included angle between the upper end surface of the cushion 3 and the inclined surface of the backrest 4, which is close to one side of the cushion 3, and the included angle between the upper end surface of the cushion 3 and the inclined surface of the backrest 4 is 120-135 degrees, so that the stability of the cushion 3 and the backrest 4 in the moving process is higher, and a certain inclined angle is arranged between the inclined surfaces of the upper end surface of the cushion 3 and the backrest 4, which are close to one side of the cushion 3, so that a user can have better and more comfortable riding experience.

In summary, the supporting-adjustable domestic intelligent sofa provided by the embodiment controls the current passing through the coil through the control switch 7, so as to control the magnetic flux of the coil, the magnetorheological fluid presents low-viscosity newtonian fluid characteristics when no magnetic field is externally applied, presents high-viscosity low-fluidity bingham fluid characteristics when no magnetic field is externally applied, and simultaneously has a corresponding relation between the viscosity of the magnetorheological fluid and the magnetic flux, so that the bag body 6 filled with the magnetorheological fluid can control the softness and hardness of the bag body 6 through the control switch 7, when a user sits on the cushion 3, the cushion 3 is driven to move downwards, the connecting frame 14 is driven to slide downwards on the second guide rail 12 and the third guide rail 13 through the first mounting seat 15, the second slide bar 17 is driven to slide in the second through groove 16, the connecting plate 19 is driven to rotate around the third slide bar 18, the connecting plate 19 moves upwards away from one end of the second sliding rod 17, meanwhile, the piston rod 24 is driven to move in the piston cylinder 23, the interior of the piston cylinder 23 which is originally in pressure difference with the outside is changed into a state of keeping balance with the outside air pressure, the connecting plate 19 moves to drive the first sliding rod 11 to slide in the third through groove 20, meanwhile, the second mounting seat 21 is driven to move upwards, the backrest 4 is driven to move upwards, a user can lean on conveniently, when the user leaves the cushion 3, the connecting plate 19 naturally falls under the action of the gravity of the backrest 4 and the connecting plate 19, the connecting plate 19 is reversely moved to drive the piston rod 24 to move under a certain resistance due to the state of keeping balance between the interior of the piston cylinder 23 and the outside air pressure, so that the backrest 4 slowly descends, when the user needs to use the leg rest 5, the leg rest 5 is manually moved, the leg rest 5 is rotated, the connecting rod is driven to rotate the leg rest 5, the first connecting rod 28 and the second connecting rod 29 are driven to rotate relatively, the connecting shaft 27 is driven to rotate, the connecting shaft 27 rotates to drive the gear 30 to rotate, the rack 31 moves, the piston 32 and the baffle 33 are driven to move, the air pressure inside the cylinder 26 changes, the springs 34 deform, when the upper end faces of the leg rest 5 and the seat cushion 3 are kept level, the air pressure inside the cylinder 26 is balanced with the outside due to the movement of the piston 32, the springs 34 reach a natural state, pushing force or pulling force is not generated on the baffle 33, and the leg rest 5 stays at a position which is kept level with the upper end face of the seat cushion 3.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a domestic intelligent sofa with adjustable supportability, includes base (1) and handrail (2), cushion (3) and back (4) of setting on base (1), its characterized in that, cushion (3) and back (4) are inside all to be equipped with bag body (6), bag body (6) intussuseption is filled with magnetorheological fluid, bag body (6) are equipped with around with magnetorheological fluid matched with coil, be equipped with on handrail (2) with coil electric connection's control switch (7), base (1) up end fixedly connected with mount (8), mount (8) upper end integrated into one piece has first guide rail (9), second guide rail (12) and third guide rail (13) respectively, set up first logical groove (10) on first guide rail (9), first logical groove (10) are connected with first slide bar (11) in a sliding way, first (11) run through first logical groove (10) and fixedly connected with second (21) with first logical groove (10) sliding connection, second guide rail (14) are kept away from on second guide rail (14) and second guide rail (14), the utility model discloses a seat cushion (3) is characterized in that a second through groove (16) is inside sliding connection has second slide bar (17), one side rotates on third guide rail (13) to be connected with third slide bar (18), rotate on third slide bar (18) to be connected with connecting plate (19), second slide bar (17) rotate with connecting plate (19) one side to be connected, connecting plate (19) have been kept away from second slide bar (17) one side and have been seted up third through groove (20), first slide bar (11) run through third through groove (20) and with third through groove (20) sliding connection, second guide rail (12) one end fixedly connected with first mount pad (15) are kept away from to link (14), first mount pad (15) and cushion (3) fixed connection, connecting plate (19) lower extreme is equipped with buffer gear in order to slow down the speed that back (4) descends, handrail (2) rotate through pivot (25) to be connected with leg support (5) that cooperatees with cushion (3), be equipped with supporting mechanism between leg support (5) and cushion (3) in order to form supporting leg (5).

2. The household intelligent sofa with adjustable supportability according to claim 1, wherein the buffer mechanism comprises a supporting rod (22), a piston cylinder (23) and a piston rod (24), the supporting rod (22) is rotatably connected to one side of the third guide rail (13) far away from the third sliding rod (18), the supporting rod (22) is rotatably connected with the lower end face of the piston cylinder (23), the piston rod (24) is arranged inside the piston cylinder (23), and the upper end face of the piston rod (24) extends to the upper side of the piston cylinder (23) and is rotatably connected with the lower end of the connecting plate (19).

3. The household intelligent sofa with adjustable supportability according to claim 1, wherein the supporting mechanism comprises a cylinder body (26), a connecting shaft (27), a first connecting rod (28), a second connecting rod (29), a gear (30), a rack (31), a piston (32), a baffle (33) and a spring (34), the upper end surface of the cylinder body (26) is fixedly connected with the lower end surface of the leg support (5), the connecting shaft (27) is rotationally connected on the cylinder body (26), the connecting shaft (27) is fixedly connected with one end of the first connecting rod (28), the other end of the first connecting rod (28) is rotationally connected with one end of the second connecting rod (29), the other end of the second connecting rod (29) is rotationally connected with the side wall of the cushion (3), one end of the connecting shaft (27) extends to the inside of the cylinder body (26) and is fixedly connected with the gear (30) coaxially arranged, the rack (31) is connected with the piston (32) which is matched with the inner surface wall of the cylinder body (26) in a meshed manner, the other end of the baffle (31) is fixedly connected with the piston (31), the other end of the piston (33) is fixedly connected with the inside the spring (33), two ends of the spring (34) are fixedly connected with the baffle (33) and the inner side surface wall of the cylinder (26) respectively.

4. A domestic intelligent sofa with adjustable support according to claim 3, characterized in that two support mechanisms are provided, and the two support mechanisms are symmetrically arranged at two sides of the leg rest (5).

5. The household intelligent sofa with adjustable supportability according to claim 1, wherein the cushion (3) and the backrest (4) are both provided with cavities, the first mounting seat (15) extends to the interior of the cushion (3) and is fixedly connected with the inner surface wall of the cushion (3), and the second mounting seat (21) extends to the interior of the backrest (4) and is fixedly connected with the inner surface wall of the backrest (4).

6. The household intelligent sofa with adjustable supportability according to claim 1, wherein two fixing frames (8), two first guide rails (9), two second guide rails (12) and two third guide rails (13) are respectively arranged on two sides of the connecting plate (19) symmetrically with respect to the connecting plate (19).

7. The household intelligent sofa with adjustable supportability according to claim 6, wherein the first guide rail (9), the second guide rail (12) and the third guide rail (13) are arranged in parallel, and an included angle between the first guide rail (9) and the fixing frame (8) is the same as an included angle between the upper end surface of the seat cushion (3) and an inclined surface of one side of the backrest (4) close to the seat cushion (3).

8. The intelligent sofa according to claim 7, wherein the angle between the upper end surface of the seat cushion (3) and the inclined surface of the backrest (4) near the seat cushion (3) is 120-135 °.