CN213487971U

CN213487971U - Sofa with adjustable hardness

Info

Publication number: CN213487971U
Application number: CN202022129443.4U
Authority: CN
Inventors: 刘建军; 刘建凡
Original assignee: Dongguan Rongma Furniture Co ltd
Current assignee: Dongguan Rongma Furniture Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-22
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to an adjustable sofa of hardness, it includes cushion and cushion, the cushion bottom is fixed in the cushion top, the cushion top surface is seted up flutedly, the recess tank bottom is equipped with elevating assembly, elevating assembly's top is equipped with the first bearing board that is the level setting, be equipped with the sponge elastic layer that is the level setting in the recess, the sponge elastic layer is located first bearing board top, the top surface and the recess notch of sponge elastic layer flush, first bearing board top surface is close to in sponge elastic layer bottom surface. This application has the effect that improves the practicality of sofa.

Description

Sofa with adjustable hardness

Technical Field

The application relates to the field of soft furniture, in particular to a sofa with adjustable hardness.

Background

The sofa is a multi-seat chair with cushions. It is a kind of soft furniture, which is a chair with spring or thick foamed plastic and has armrests on two sides. The sofa is used to act upon a person's weight or a portion thereof, wherein the device distributes the weight of the person's body over a portion of the surface of the furniture device. Depending on how the device distributes the weight of a person, it will appear soft or hard. The degree to which the seat surface can sag reflects its degree of softness.

In the related art, a sofa includes a seat cushion for a user to provide a sitting position, a back cushion fixed to a top surface of the seat cushion for a user to provide a reclining position, and two opposite hand cushions fixed to a top surface of the seat cushion for a user's hands to provide a reclining position.

In view of the above-mentioned related technologies, the inventor believes that when the sofa is used by different users, if different users need different hardness degrees, the cushions with different hardness degrees need to be replaced, which results in a defect of low practicability of the sofa.

SUMMERY OF THE UTILITY MODEL

In order to improve the practicality of sofa, this application provides an adjustable sofa of hardness.

The application provides an adjustable sofa of hardness adopts following technical scheme:

the utility model provides an adjustable sofa of hardness, includes cushion and cushion, the cushion bottom is fixed in the cushion top, the cushion bottom surface is seted up flutedly, the recess tank bottom is equipped with elevating assembly, elevating assembly's top is equipped with the first bearing board that is the level setting, be equipped with the sponge elastic layer that is the level setting in the recess, the sponge elastic layer is located first bearing board top, the top surface and the recess notch of sponge elastic layer flush, first bearing board top surface is close to in sponge elastic layer bottom surface.

Through adopting above-mentioned technical scheme, the user accessible lifting unit adjusts the height of first bearing board before using, and then adjusts the distance of first bearing board top surface and sponge elastic layer bottom surface, and this distance has decided the degree that can sink of sponge elastic layer when the user sits down to the hardness degree to the sofa has adjusted, has improved the practicality of sofa.

Preferably, lifting unit includes lead screw, first servo motor, slide, two relative limiting plates and two guide bars, is two of vertical setting the guide bar bottom mounting is in the recess tank bottom, first servo motor is fixed in the recess tank bottom and is located between two guide bars, first servo motor's output shaft is vertical upwards setting, is vertical setting the lead screw bottom is connected in the tip of first servo motor output shaft, is two that the level set up the limiting plate is fixed in the lead screw, two the limiting plate is close to respectively in the top and the bottom of lead screw, is the level setting two guide bars and with lead screw threaded connection are located to the slide cover, the slide top surface is connected with first bearing board bottom surface through four spinal branch vaulting poles.

Through adopting above-mentioned technical scheme, the user controls first servo motor, and first servo motor's output shaft drive lead screw rotates, and the pivoted lead screw drives the slide and removes along the guide bar, and gliding slide drives first bearing board through four spinal branch vaulting poles and removes, and then adjusts the distance of first bearing board and sponge elastic layer to be favorable to better realization to the regulation of sofa soft or hard degree.

Preferably, the top end of the support rod is provided with a buffer assembly for adjusting the hardness of the cushion, and the top of the buffer assembly is connected with the first supporting plate.

Through adopting above-mentioned technical scheme, the user adjusts the soft or hard degree that buffering subassembly can adjust the cushion, and then adjusts the soft or hard degree of sofa, has further improved the practicality of sofa.

Preferably, the buffering component comprises an air cushion and an air pump, the bottom surface of the air cushion is connected to the top ends of the four support rods, the air cushion is horizontally arranged, the top surface of the air cushion is fixedly connected with the bottom surface of the first supporting plate, the air pump for inflating or deflating the air cushion is fixed at the bottom of the groove, the air pump is located below the air cushion, and the air pump is connected with the air cushion through a pipeline.

Through adopting above-mentioned technical scheme, the user controls the air pump and aerifys or deflates the air cushion for air cushion inflation or shrink, during the air cushion inflation, the pressure in the air cushion is great, and it is higher to demonstrate for the hardness, and during the air cushion shrink, the pressure in the air cushion is less, and it is lower to demonstrate for the hardness, thereby has adjusted the soft or hard degree of sofa, has improved the practicality of sofa.

Preferably, the back cushion is internally provided with an adjusting component for adjusting the hardness degree of the back cushion, and the adjusting component is positioned above the seat cushion.

Through adopting above-mentioned technical scheme, the user controls adjusting part, can adjust the soft or hard degree of cushion, and the soft or hard degree of cushion cooperates with the soft or hard degree of cushion to the soft or hard degree of better regulation sofa.

Preferably, the adjusting part includes two relative axis of rotation, two second servo motor and a plurality of serpentine spring, the cushion is the cavity setting, is two of vertical setting the both ends of axis of rotation rotate respectively connect in the interior top surface and the interior bottom surface of cushion, are a plurality of that the level set up serpentine spring both ends are fixed in two axis of rotation respectively, and are a plurality of serpentine spring is located the cushion, and is a plurality of serpentine spring arranges along vertically being equidistant, second servo motor is fixed in the cushion top surface and is located the axis of rotation top, second servo motor's output shaft is vertical setting, second servo motor's output shaft passes the cushion top surface and is connected with the axis of rotation top.

Through adopting above-mentioned technical scheme, the user controls two second servo motor, and second servo motor's output shaft drive axis of rotation rotates, can adjust a plurality of serpentine spring's tensioning degree to the realization is to the regulation of cushion soft or hard degree.

Preferably, a second bearing plate which is horizontally arranged is fixed at the top end of the four support rods, and the top surface of the second bearing plate is fixedly connected with the bottom surface of the air cushion.

Through adopting above-mentioned technical scheme, second bearing board has increased the area of contact with the air cushion bottom surface to make four spinal branch vaulting poles can be better be connected with the air cushion bottom surface.

Preferably, the cushion lateral wall is equipped with the layer of keeping out the anger that is used for admitting air and giving vent to anger, the layer of keeping out the anger is close to the air pump.

Through adopting above-mentioned technical scheme, the layer of dredging the gas is convenient for the air pump during operation better breathe in and the exhaust to be favorable to the air pump better for the air cushion aerify and the gassing.

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

1. the height of first bearing board is adjusted to accessible elevating assembly before the user uses, and then adjusts the distance of first bearing board top surface and sponge elastic layer bottom surface, and this distance has decided the degree that can sink of sponge elastic layer when the user sits down to the hardness degree to the sofa has adjusted, has improved the practicality of sofa.

2. The user controls first servo motor, and first servo motor's output shaft drive lead screw rotates, and pivoted lead screw drives the slide and removes along the guide bar, and gliding slide drives first bearing board through four spinal branch vaulting poles and removes, and then adjusts the distance of first bearing board and sponge elastic layer to be favorable to better realization to the regulation of sofa softness and hardness degree.

3. The user controls two second servo motor, and second servo motor's output shaft drive axis of rotation rotates, can adjust a plurality of serpentine spring's tensioning degree to the realization is to the regulation of cushion softness and hardness degree.

Drawings

Fig. 1 is a sectional view of a sofa with adjustable firmness according to the embodiment.

Fig. 2 is a schematic view of the overall structure of the lifting assembly in this embodiment.

Description of reference numerals: 1. a cushion; 2. back cushion; 3. a handrail; 4. a first support plate; 5. a sponge elastic layer; 6. a groove; 7. a screw rod; 8. a first servo motor; 9. a slide plate; 10. a limiting plate; 11. a guide bar; 12. a support bar; 13. a second support plate; 14. an air cushion; 15. an air pump; 16. a gas-dispersing layer; 17. a rotating shaft; 18. a second servo motor; 19. a serpentine spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a sofa with adjustable hardness. Referring to fig. 1, the sofa with adjustable hardness comprises a seat cushion 1, a back cushion 2 and two armrests 3, wherein the bottom of the back cushion 2 is fixed at the top of the seat cushion 1, the back cushion 2 is close to one side surface of the seat cushion 1, the two armrests 3 are fixed at the top of the seat cushion 1, and the two armrests 3 are respectively close to two opposite side surfaces of the seat cushion 1 vertical to the back cushion 2. Be equipped with lifting unit in the cushion 1, lifting unit's top is equipped with the first bearing board 4 that is the level setting for adjust soft or hard degree. The top of the cushion 1 is provided with a sponge elastic layer 5, and the sponge elastic layer 5 is positioned above the first supporting plate 4 and is used for a user to sit down.

Referring to fig. 1, recess 6 has been seted up to 1 bottom surface of cushion, lifting unit bottom and 6 tank bottoms fixed connection of recess, and sponge elastic layer 5 is located recess 6, and the top surface of sponge elastic layer 5 flushes with 6 notches of recess, and sponge elastic layer 5 is located between two

handrail

3, and 4 top surfaces of first bearing board are close to in 5 bottom surfaces of sponge elastic layer.

Referring to fig. 1 and 2, lifting unit includes lead screw 7, first servo motor 8, slide 9, two relative limiting plates 10 and two guide bars 11, and guide bar 11 is vertical setting, and the bottom mounting of guide bar 11 is in the 6 tank bottoms of recess, has certain interval between two guide bars 11, and first servo motor 8 is fixed in the 6 tank bottoms of recess and is located between two guide bars 11, and the output shaft of first servo motor 8 is vertical upwards setting. The lead screw 7 is vertical setting, and the bottom of lead screw 7 is connected in the tip of first servo motor 8 output shaft, and lead screw 7 is located between two guide bars 11. The limiting plate 10 is the level setting, and two limiting plates 10 are fixed in lead screw 7, and two limiting plates 10 are close to the top and the bottom of lead screw 7 respectively. Slide 9 is the level setting, and slide 9 covers and locates two guide bars 11 and with 7 threaded connection of lead screw, and slide 9 top surface is fixed with four spinal branch vaulting poles 12 that are vertical setting, and the top of four spinal branch vaulting poles 12 all is connected with first bearing board 4 bottom surfaces, and four spinal branch vaulting poles 12 are the matrix and arrange. The user controls first servo motor 8, and first servo motor 8's output shaft drive lead screw 7 rotates, and pivoted lead screw 7 drives slide 9 and removes along guide bar 11, and two limiting plates 10 play the effect of injecing slide 9 displacement range, and gliding slide 9 drives first bearing board 4 through four spinal branch vaulting poles 12 and removes, and then adjusts the distance of first bearing board 4 and sponge elastic layer 5 to the realization is to the regulation of sofa softness and hardness degree.

Referring to fig. 2, a second supporting plate 13 is fixed at the top end of the four support rods 12, and the top surface of the second supporting plate 13 is connected with the first supporting plate 4 through a buffer assembly. The user adjusts the soft or hard degree that buffer assembly can adjust cushion 1, and then adjusts the soft or hard degree of sofa, has further improved the practicality of sofa.

Referring to fig. 1, the buffer assembly includes an air cushion 14 and an air pump 15, the air cushion 14 is horizontally disposed, a bottom surface of the air cushion 14 is fixed to a top surface of the second support plate 13, a top surface of the air cushion 14 is fixedly connected to a bottom surface of the first support plate 4, the air pump 15 is fixed to a bottom of the groove 6, the air pump 15 is located below a side of the air cushion 14, and the air pump 15 is connected to the air cushion 14 through a pipeline and used for inflating or deflating the air cushion 14. The user controls the air pump 15 to inflate or deflate the air cushion 14, so that the air cushion 14 expands or contracts, when the air cushion 14 expands, the pressure in the air cushion 14 is large, the hardness is high, when the air cushion 14 contracts, the pressure in the air cushion 14 is small, the hardness is low, the hardness degree of the sofa is adjusted, and the practicability of the sofa is improved.

Referring to fig. 1, the side wall of the seat cushion 1 is provided with an air-permeable layer 16, and the air-permeable layer 16 is close to the air pump 15 and is used for facilitating air inlet and air outlet of the air pump 15. The air-permeable layer 16 facilitates better suction and discharge of air by the air pump 15 during operation, thereby facilitating better inflation and deflation of the air cushion 14 by the air pump 15.

Referring to fig. 1, an adjusting component for adjusting the hardness of the back cushion 2 is arranged in the back cushion 2, and the adjusting component is positioned above the seat cushion 1. The user controls the adjusting part, adjusts the soft or hard degree of cushion 2, and the soft or hard degree of cushion 2 cooperates with the soft or hard degree of cushion 1 to the soft or hard degree of better regulation sofa.

Referring to fig. 1, the adjusting assembly includes two relative axis of rotation 17, two second servo motor 18 and a plurality of serpentine spring 19, and cushion 2 is the cavity setting, and axis of rotation 17 is vertical setting, and two ends of two axis of rotation 17 rotate respectively and connect in the interior top surface and the interior bottom surface of cushion 2, and two axis of rotation 17 are close to respectively in two handrails 3. Serpentine spring 19 is the level setting, and two axis of rotation 17 are fixed in respectively at a plurality of serpentine spring 19's both ends, and a plurality of serpentine spring 19 are located cushion 2, and a plurality of serpentine spring 19 are along vertically being equidistant arranging. Two second servo motor 18 all are fixed in cushion 2 top surface, and two second servo motor 18 are located two axis of rotation 17 tops respectively, and second servo motor 18's output shaft is vertical downward setting, and second servo motor 18's output shaft passes cushion 2 top surface and is connected with axis of rotation 17 top. The user controls the two second servo motors 18, and the output shafts of the second servo motors 18 drive the rotating shafts 17 to rotate, so as to adjust the tensioning degree of the plurality of serpentine springs 19, and further realize the adjustment of the hardness degree of the back cushion 2.

The sofa with adjustable hardness provided by the embodiment of the application has the following implementation principle: the user controls first servo motor 8 before using, the output shaft of first servo motor 8 drives lead screw 7 to rotate, pivoted lead screw 7 drives slide 9 and removes along guide bar 11, two limiting plates 10 play the effect of injecing slide 9 moving range, gliding slide 9 drives first bearing board 4 through four spinal branch vaulting poles 12 and removes, and then adjust the distance of first bearing board 4 and sponge elastic layer 5, this distance has decided the degree that can sink of sponge elastic layer 5 when the user sits down, again control air pump 15 and aerify or deflate air cushion 14, make air cushion 14 inflation or shrink, when air cushion 14 expands, the pressure in air cushion 14 is great, show as the hardness is higher, when air cushion 14 contracts, the pressure in air cushion 14 is less, show as the hardness is lower. And finally, two second servo motors 18 are controlled, the output shafts of the second servo motors 18 drive the rotating shafts 17 to rotate, and the tensioning degrees of the plurality of serpentine springs 19 are adjusted, so that the hardness of the sofa is adjusted, and the practicability of the sofa is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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. The utility model provides an adjustable sofa of hardness, includes cushion (1) and cushion (2), cushion (2) bottom is fixed in cushion (1) top, its characterized in that: recess (6) have been seted up to cushion (1) bottom surface, recess (6) tank bottom is equipped with elevating assembly, elevating assembly's top is equipped with first bearing board (4) that is the level setting, be equipped with sponge elastic layer (5) that are the level setting in recess (6), sponge elastic layer (5) are located first bearing board (4) top, the top surface and recess (6) notch of sponge elastic layer (5) flush, first bearing board (4) top surface is close to in sponge elastic layer (5) bottom surface.

2. The adjustable-firmness sofa of claim 1, wherein: lifting unit includes lead screw (7), first servo motor (8), slide (9), two relative limiting plate (10) and two guide bar (11), is the two of vertical setting guide bar (11) bottom mounting in recess (6) tank bottom, first servo motor (8) are fixed in recess (6) tank bottom and are located between two guide bar (11), the output shaft of first servo motor (8) is vertical upwards setting, is vertical setting lead screw (7) bottom mounting is in the tip of first servo motor (8) output shaft, is the two that the level set up limiting plate (10) are fixed in lead screw (7), two limiting plate (10) are close to respectively in the top and the bottom of lead screw (7), are the level setting two guide bar (11) and lead screw (7) threaded connection are located to slide (9) cover, slide (9) top surface is connected with first bearing board (4) bottom surface through four spinal branch vaulting poles (12).

3. The adjustable-firmness sofa of claim 2, wherein: and the top end of the supporting rod (12) is provided with a buffer assembly for adjusting the top of the buffer assembly of the hardness degree of the cushion (1) is connected with the first bearing plate (4).

4. The adjustable-firmness sofa of claim 3, wherein: buffer unit includes air cushion (14) and air pump (15), the top in four spinal branch vaulting poles (12) is connected to air cushion (14) bottom surface, air cushion (14) are the level setting, air cushion (14) top surface and first bearing board (4) bottom surface fixed connection are used for right air pump (15) that air cushion (14) aerifys or the gassing are fixed in recess (6) tank bottom, air pump (15) are located air cushion (14) below, air pump (15) are connected with air cushion (14) through the pipeline.

5. The adjustable-firmness sofa of claim 4, wherein: be equipped with the adjusting part who is used for adjusting cushion (2) hardness degree in cushion (2), adjusting part is located cushion (1) top.

6. The adjustable-firmness sofa of claim 5, wherein: the adjusting component comprises two opposite rotating shafts (17), two second servo motors (18) and a plurality of serpentine springs (19), the back cushion (2) is arranged in a hollow manner, two ends of two vertically arranged rotating shafts (17) are respectively and rotatably connected to the inner top surface and the inner bottom surface of the back cushion (2), two ends of a plurality of horizontally arranged serpentine springs (19) are respectively fixed on the two rotating shafts (17), the plurality of serpentine springs (19) are positioned in the back cushion (2), the plurality of serpentine springs (19) are longitudinally arranged at equal intervals, the second servo motor (18) is fixed on the top surface of the back cushion (2) and is positioned above the rotating shaft (17), the output shaft of the second servo motor (18) is vertically arranged, and the output shaft of the second servo motor (18) penetrates through the top surface of the back cushion (2) and is connected with the top end of the rotating shaft (17).

7. The adjustable-firmness sofa of claim 4, wherein: a second bearing plate (13) which is horizontally arranged is fixed at the top end of the supporting rod (12), and the top surface of the second bearing plate (13) is fixedly connected with the bottom surface of the air cushion (14).

8. The adjustable-firmness sofa of claim 4, wherein: the side wall of the seat cushion (1) is provided with an air-dredging layer (16) for air inlet and outlet, and the air-dredging layer (16) is close to the air pump (15).