CN218451502U - Seat back and seat - Google Patents

Abstract

The utility model discloses a backrest and seat, backrest includes: a back structural panel; the first air bag layer is arranged on the front side of the back structure plate and is used for supporting the waist and/or the back of a user when the air inflation is carried out; the first isolation surface is arranged on the front side of the first air bag layer; the second air bag layer is arranged on the front side of the first isolation surface, and the first isolation surface separates the first air bag layer from the second air bag layer so as to avoid direct contact of the first air bag layer and the second air bag layer when the air bag is inflated and inflated; the front end face of the backrest is arranged on the front side of the second air bag layer and is used for being in contact with a human body demand surface. The second air bag layer is additionally arranged, so that the overall inflated swelling height of the air bag of the seat backrest is increased; in addition, after the first air bag layer and the second air bag layer are separated through the first isolation surface, the problem of friction noise is avoided, and the problems of unexpected dislocation, air bag swelling direction deviation and abnormal return caused by friction are also avoided.

Description

Seat back and seat

Technical Field

The utility model relates to a seat technical field especially relates to a backrest and seat.

Background

The gasbag structure is used extensively in the life as adjustable support piece, for example is applied to the seat back, through add gasbag structure in the back inside, utilizes the gas filled drum of gasbag to rise to support human back and realize diversified function, for example hold in the palm waist function, massage function etc..

Chinese patent document CN112089246a discloses a back following support device, which comprises a backrest plate; the flexible back and waist support comprises a cushion airbag arranged on the back board; the adaptive regulation and control system comprises a main controller, an air feeder for inflating the cushion by the air bag, a pressure regulating valve for controlling the amount of air in the cushion by the air bag, and an air pressure sensor for collecting the air pressure in the cushion by the air bag. This prior art leans on the bulging height of gasbag through the control pad to laminate all the time, effectively support user's waist back position to change the holding power to waist back position, reduce the damage that the user caused the lumbar vertebrae because of sitting for a long time.

However, this prior art has the following drawbacks in practical use:

1. the cushion airbag in the prior art is a single-layer airbag, the height of the cushion airbag after inflation is limited, namely the working distance is limited, and when a user leans against the front half seat, the single-layer airbag can not really and effectively support the user;

2. if the single-layer airbag is replaced by the welding type multilayer airbag in the prior art, when the inflatable drum is inflated, the airbag between layers can rub to generate noise, so that the user experience is influenced, and even the problems of unexpected deviation of the inflating direction and incapability of normally returning after friction dislocation are caused by friction;

3. only has the function of supporting the waist, and has single function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a seat back to solve among the prior art limited unable effective support user of individual layer gasbag operating distance and welded type multilayer gasbag inflatable drum time-out produce the technical problem of the unable normal return after noise, the unexpected direction skew of heaving and the friction dislocation.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model discloses a first aspect provides a seat back, include: a back structural panel; the first air bag layer is arranged on the front side of the back structure plate and is used for supporting the waist and/or the back of a user when the air inflation is carried out; the first isolation surface is arranged on the front side of the first air bag layer; the second air bag layer is arranged on the front side of the first isolation surface, and the first isolation surface separates the first air bag layer from the second air bag layer so as to avoid direct contact of the first air bag layer and the second air bag layer when the air bags are inflated and inflated; the front end face of the backrest is arranged on the front side of the second air bag layer and is used for being in contact with a human body demand surface.

Optionally, the first isolation surface is a flexible surface.

Optionally, the first isolation surface is a cloth bag connected to the back surface of the front end surface of the backrest, and the second air bag layer is placed in the cloth bag.

Optionally, the second airbag layer includes a plurality of airbags, the first isolation surface is a plurality of the cloth bags connected to the back surface of the front end surface of the backrest, and the airbags are respectively placed in the cloth bags.

Optionally, the second airbag layer is connected to the front side of the first isolation surface, the rear side of the first isolation surface is connected to an auxiliary airbag layer, and the auxiliary airbag layer and the second airbag layer are arranged in a staggered manner, so that the inflation and swelling of the auxiliary airbag layer can change the swelling direction of the second airbag layer.

Optionally, the first isolation surface is a hard plate, the second airbag layer is installed on the front side surface of the hard plate, the hard plate is elastically connected with the edge of the back structure plate, and when the back structure plate and the human body demand surface are not parallel to each other, the hard plate rotates along the surface of the first airbag layer inflated and expanded by air, so that the second airbag layer on the hard plate rotates to the human body demand surface in a self-adaptive manner.

Optionally, the second bladder layer comprises a plurality of bladders, at least one bladder of the plurality of bladders being slidably connected to the rigid panel.

Optionally, the seat back further comprises:

the second isolation surface is arranged on the front side of the second air bag layer;

the third air bag layer is arranged on the front side of the second isolation surface and the rear side of the front end surface of the backrest, the second isolation surface separates the second air bag layer from the third air bag layer so as to avoid direct contact of the second air bag layer and the third air bag layer when the air bags are inflated and inflated, and the third air bag layer is a single-layer air bag which can be inflated and inflated to be hardened in a period of time.

Optionally, the first air bag layer comprises a large air bag arranged at the bottom of the back structure plate and used for supporting the lumbar and the back, a first small air bag arranged at the middle of the back structure plate, and a flat and long air bag arranged at the upper part of the back structure plate and used for supporting the upper back and the neck; and/or, the second gasbag layer is including the second small-size gasbag that is located the middle part upside, the third small-size gasbag of middle part downside, the first rectangular shape gasbag in left side and the rectangular shape gasbag in right side second, the second small-size gasbag with the third small-size gasbag is located the positive front side of the large-scale gasbag of back structural slab bottom, first rectangular shape gasbag with the rectangular shape gasbag bilateral symmetry of second for wrap up the waist.

Optionally, the front end surface of the backrest is a composite multilayer structure, and the composite multilayer structure includes: the fabric layer is suitable for facing the human body requirement surface and has air permeability and/or waterproofness; the supporting layer is used for controlling the overall hardness degree of the front end surface of the backrest; and the temperature control layer is used for controlling the surface temperature of the front end surface of the backrest.

Optionally, each balloon is individually inflatable and deflatable.

A second aspect of the present invention provides a seat, including the above-mentioned seat back.

The utility model has the advantages that:

1. the utility model provides a seat backrest, including first gasbag layer and second gasbag layer, the second gasbag layer sets up the front side of first gasbag layer, compares prior art, through addding the second gasbag layer, has increased the whole height of heaving after the aeration of the gasbag of seat backrest, has namely increased the working distance of gasbag, especially when the user leans on the seat of the front half seat, the utility model discloses a gasbag can support the user effectively; furthermore, the utility model discloses still include first separation surface, first separation surface separates first gasbag layer and second gasbag layer in order to avoid both direct contact when the gasbag inflates and swells, because the gasbag swells the rear surface harder, if there is not first separation surface, the gasbag on first gasbag layer can direct contact with the gasbag on second gasbag layer after swelling, take place the friction and produce noise influence user experience, can produce the problem of unable normal return after unexpected bulging direction skew and the friction dislocation because of the friction even, and the utility model discloses a first separation surface separates first gasbag layer and second gasbag layer after, both can not form direct contact, just also avoided the problem of frictional noise, also can avoid the unexpected dislocation that produces because of the friction simultaneously and the problem of gasbag bulging direction skew, can also avoid the problem of unable normal return after the gasbag that leads to because of the friction dislocation deflates.

2. The utility model provides a seat back is through setting up first isolation surface into flexible face for first gasbag layer is aerifyd and is risen the gasbag of the second gasbag layer through flexible first isolation surface promotion front side, through the design at promotion position, makes the direction of rising of inflating the gasbag that can control second gasbag layer of first gasbag layer, and because first isolation surface is flexible face, makes the gasbag on first gasbag layer and second gasbag layer also can normally return after the gassing.

3. The utility model provides a seat back, the sack of first separation surface for connecting the back at terminal surface before the back, second gasbag layer is placed in the sack, and at first, the sack retrains second gasbag layer, avoids the gasbag on second gasbag layer to run out from predetermined position, and secondly, the design of sack for the installation on second gasbag layer is more convenient, as long as place the gasbag on second gasbag layer in the sack can, improved the holistic assembly efficiency of seat.

4. The utility model provides a seat back, second gasbag layer fixed connection are at the leading flank of first isolation surface, and the trailing flank of first isolation surface is connected with supplementary gasbag layer, supplementary gasbag layer and second gasbag layer dislocation set for can promote the direction of bulging on second gasbag layer through first isolation surface after supplementary gasbag layer is inflated and is risen.

5. The utility model provides a seat back, first isolation face is the hardboard, and the leading flank at the hardboard is installed on second gasbag layer, the marginal elastic connection of hardboard and back structural slab, when back structural slab is the non-parallel surface with human demand face, rotate to the human demand face with the adaptation ground through the second gasbag layer that the hardboard made on the hardboard along the surface of aerifing the first gasbag layer after bloated through the hardboard, realized following to the automation of human demand face.

6. The utility model provides a seat back, first isolation surface are hard board, and second gasbag layer includes a plurality of gasbags, and at least one gasbag and hard board sliding connection can change the coordinate position of gasbag for hard board through sliding connection in a plurality of gasbags to the change realizes more functions to user's supported position. Further, the airbag slidably attached to the hard plate can also serve as an auxiliary airbag for applying a pushing force to the airbag located on the front side, thereby controlling the direction in which the airbag located on the front side bulges.

7. The utility model provides a seat back still includes second isolation surface and third gasbag layer, the front side on second gasbag layer is located to the second isolation surface, the front side of second isolation surface is located on the third gasbag layer, the rear side of terminal surface before the back, second isolation surface separates second gasbag layer and third gasbag layer in order to avoid both direct contact when the gasbag inflates and swells, the individual layer gasbag of sclerosis is inflated and has been played for can being in the time of the section in third gasbag layer, provide strong thrill for the user.

8. The utility model provides a seat back, terminal surface are compound multilayer structure before its back, including precoat, supporting layer and accuse temperature layer, the precoat is suitable for towards human demand face, has gas permeability and waterproof nature, and the supporting layer is used for controlling the whole soft or hard of terminal surface before the back and becomes all, and accuse temperature layer is used for controlling the surface temperature of terminal surface before the back. The fabric layer can enable sweat and water vapor on the contact surface to be smoothly discharged while preventing water, and keeps the contact surface dry; the selection of the supporting layer can control the softness and hardness of the body feeling of a user; the temperature control layer can control the surface temperature of the seat back.

Drawings

Fig. 1 is an exploded view of a seat back provided in embodiment 1 of the present invention;

FIG. 2 is another angled view of FIG. 1;

fig. 3 is a front view of a seat back provided in embodiment 1 of the present invention (a front end surface of the seat back is not shown);

fig. 4 is a perspective view of a seat back provided in embodiment 1 of the present invention (a front end surface of the seat back is not shown);

FIG. 5 is a mating view of the first and second bladder layers without the first isolation surface;

fig. 6 is a schematic structural view of a seat back provided in embodiment 3 of the present invention (a first air bag layer is in a bulging state);

fig. 7 is a combination view of a first air bag layer (in a raised state), a hard plate, and a second air bag layer of a seat back according to embodiment 3 of the present invention;

fig. 8 is a schematic structural view of a seat back provided in embodiment 3 of the present invention (the first air bag layer is not inflated);

fig. 9 is an exploded view of a seat back provided in embodiment 5 of the present invention (not all air bags shown);

fig. 10 is a schematic structural view of a back rest front end surface of a seat back according to embodiment 6 of the present invention.

In the figure:

1-a back structural panel;

2-a first airbag layer, 21-a large airbag, 22-a first small airbag, 23-a flat and long airbag;

3-a first isolation surface, 31-a cloth bag and 32-a hard plate;

4-a second air bag layer, 41-a second small air bag, 42-a third small air bag, 43-a first strip-shaped air bag and 44-a second strip-shaped air bag;

5-a second isolation surface;

6-a third air bag layer;

7-the front end face of the backrest, 71-a fabric layer, 72-a supporting layer and 73-a temperature control layer;

8-human body, 81-human body demand side.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention will be further explained by the following embodiments with reference to the accompanying drawings.

The embodiment of the utility model provides a seat back includes terminal surface 7 before back structural slab 1, first gasbag layer 2, first separation surface 3, second gasbag layer 4 and the back in proper order to the front side from the rear side. Wherein, the first air bag layer 2 is arranged at the front side of the back structure plate 1 for supporting the waist and/or the back of the user. The first isolation surface 3 is arranged on the front side of the first air bag layer 2, the second air bag layer 4 is arranged on the front side of the first isolation surface 3, and the first isolation surface 3 is used for isolating the first air bag layer 2 from the second air bag layer 4 so as to avoid direct contact of the first air bag layer 2 and the second air bag layer 4 when the air bag is inflated and expanded. The backrest front end surface 7 is arranged at the front side of the second air bag layer 4 and is used for contacting with a human body demand surface 81 of a human body 8.

It should be noted that the human body demand is generally divided into two types, active and passive. Initiative: when the user feels uncomfortable, tired and sleepy, and some parts generate specific negative body sensations such as aching pain and numbness, the surfaces of the parts are the demand surfaces of the user for actively generating demands (the demands can be defined as demands for relieving the negative body sensations). Example (c): users have long periods of sitting that have resulted in soreness in the waist, actively seeking massage/support from the chair to relieve the sensation of soreness. The waist of the user is the active demand side of the human body. And (3) passive: the user does not experience discomfort, but through physical or physiological studies and consensus it is determined that when the user makes a certain behavior, the surface of certain parts of the user is the demand side where the user is passively creating a demand (which may be defined as a demand to prevent negative body sensations). Example (c): the user sitting for a long time may cause waist soreness, and the chair automatically opens the massage/support to prevent the waist soreness. The waist of the user is the passive demand side of the human body.

Compared with the prior art, the seat backrest provided by the embodiment of the utility model has the advantages that the second air bag layer 4 is additionally arranged, the overall height of the inflated air bag of the seat backrest is increased, namely the working distance of the air bag is increased, and particularly when a user leans against the front half seat, the overall air bag structure of the seat backrest can effectively support the user; in addition, because the gasbag heaves the rear surface harder, if do not have first separation surface 3, the gasbag of first gasbag layer 2 and the gasbag of second gasbag layer 4 can direct contact after heaping, take place the friction and produce noise influence user experience, can produce the problem of unable normal return after unexpected bulging direction skew and the friction dislocation because of the friction even, and the embodiment of the utility model discloses after separating first gasbag layer 2 and second gasbag layer 4 through first separation surface 3, both can not form direct contact, just also avoided the problem of frictional noise, also can avoid the problem of unexpected dislocation and the gasbag heaping direction skew because of the friction that produces simultaneously, can also avoid the problem of unable normal return after the gasbag that leads to because of the friction dislocation deflates.

It should be noted that, the above structure is the core structure of the embodiment of the present invention, and it should be understood by those skilled in the art that, on the basis of the above core structure, adding the second isolation surface 5, the third airbag layer 6, the third isolation surface, the fourth airbag layer, etc. all belong to the protection scope of the present invention.

Based on above-mentioned core structure, the embodiment of the utility model provides a following several kinds of seat back's concrete embodiment is proposed.

Example 1

Fig. 1 is a front view of a seat back provided in embodiment 1 of the present invention; fig. 2 is a perspective view of a seat back provided in embodiment 1 of the present invention; fig. 3 is an exploded view of a seat back provided in embodiment 1 of the present invention; fig. 4 is another angled view of fig. 3.

As shown in fig. 1 to 4, the present embodiment provides a seat back having two air bag layers, the seat back including, in order from the rear side to the front side: the back structure plate 1, the first air bag layer 2, the first isolation surface 3, the second air bag layer 4 and the backrest front end surface 7.

The back structure plate 1 is preferably a plastic structure plate with certain hardness, but the material of the back structure plate 1 is not limited to the plastic structure plate, and in other embodiments, the back structure plate 1 may also be a metal plate, a wood plate, or the like. The back structure plate 1 is not limited to a hard material, and in some embodiments, the back structure plate 1 may be made of a soft material, for example, when the seat back is attached to a hard substrate such as a wall surface, the back structure plate 1 may be made of a soft material such as cloth, and attached to the hard substrate during use. The shape of the back structure plate 1 is also not limited in the present invention, the back structure plate 1 can adopt the shape as shown in fig. 1 to 4, and also can adopt other common shapes at present, and also can be individually designed according to the requirement, for example, the back structure plate is designed into the shapes of triangle, trapezoid, circle, ellipse, etc.

As shown in fig. 1, the first air bag layer 2 includes a large air bag 21 provided at the bottom of the back structure panel for supporting the lumbar region, a first small air bag 22 provided at the center of the back structure panel, and a long and flat air bag 23 provided at the upper portion of the back structure panel for supporting the upper back and the neck.

Further, the large airbag 21 is preferably a large multi-layer airbag, such as a large two-layer airbag, a large three-layer airbag, or a large four-layer airbag, and in this embodiment, is preferably a large three-layer airbag to provide a large area of support for the lumbar region of the user. The first small air cell 22 is preferably a small multi-layer air cell, and more preferably a small three-layer air cell, responsible for the support and massage of the upper back of the user. The elongate bladder 23 is preferably a double layered elongate bladder 23 for supporting the upper back and neck.

The airbag may be a single-layer airbag, a double-layer airbag, a four-layer airbag, or the like, as required.

The first isolation surface 3 is positioned between the first airbag layer 2 and the second airbag layer 4 to separate the two airbag layers, so that the respective characteristics of the two airbag layers can be fully exerted. In this embodiment, the first isolation surface 3 is a flexible surface, preferably a cloth, and the flexible surface has the following advantages: the first flexible surface serves as a buffer layer, and because the surface of the inflated and bulged air bag is hard, if the hard surface of the air bag is contacted with the hard isolation surface, friction noise can be generated, and if the hard surface of the air bag is contacted with the flexible surface, the friction noise can be greatly reduced, even the noise can not be generated, so that the user experience is greatly improved; secondly, the flexible surface does not affect the performance of the respective characteristics of the first airbag layer 2 and the second airbag layer 4, the first airbag layer 2 and the second airbag layer 4 can be bulged in an expected direction, when the airbag of the first airbag layer 2 and the airbag of the second airbag layer 4 are arranged oppositely, both the two layers of airbags can be bulged towards the right front, when the airbag of the first airbag layer 2 and the airbag of the second airbag layer 4 are arranged in a staggered manner, the airbag of the first airbag layer 2 positioned at the rear side can push the airbag of the second airbag layer 4 positioned at the front side to deflect after being bulged, that is, the airbag of the first airbag layer 2 can control the bulging direction of the second airbag layer 4 through the staggered arrangement and the flexible surface, for example, when the airbag of the first airbag layer 2 is positioned below the airbag of the second airbag layer 4, the airbag of the first airbag layer 2 pushes the lower part of the airbag of the second airbag layer 4 after being bulged, so that the airbag of the second airbag layer 4 deflects upwards.

Further, the first isolation surface 3 is preferably a cloth bag 31 connected to the back surface of the backrest front end surface 7, and the second air bag layer 4 is placed in the cloth bag 31. The benefits of using the cloth bag 31 are: firstly, sack 31 retrains second air bag layer 4, avoids second air bag layer 4's gasbag to run out from predetermined position, and secondly, the design of sack 31 for second air bag layer 4's installation is more convenient, as long as with second air bag layer 4 the gasbag place in sack 31 can, improved the holistic assembly efficiency of seat.

Further preferably, the second air bag layer 4 includes a plurality of air bags, the first isolation surface 3 is a plurality of cloth bags 31 disposed on the back surface of the backrest front end surface 7, and the plurality of air bags are respectively disposed in the plurality of cloth bags 31. As shown in fig. 2, the first isolation surface 3 is three cloth bags 31 connected to the back surface of the front end surface 7 of the backrest, the two strip-shaped air bags of the second air bag layer 4 are respectively placed in the cloth bags 31 at the two sides, and the two small air bags in the middle are placed in the cloth bag 31 in the middle. The cloth bag 31 is provided with a zipper, and when the air bag is placed in the cloth bag 31, the zipper can be pulled up to prevent the air bag from running out and further prevent the air bag from running out of the cloth bag 31. In addition, the air bag is usually connected with an air pipe for inflation, the air bag is placed in the cloth bag, the phenomenon that the air bag runs randomly to cause the folding of the air pipe can be avoided, and the problem that the air bag with the folded air pipe is suffocated can be greatly reduced by restraining the position of the air bag in the cloth bag.

In this embodiment, the specific structure of the second airbag layer 4 is as follows: including the second small-size gasbag 41 that is located the middle part upside, the third small-size gasbag 42 of middle part downside, the first rectangular shape gasbag 43 in left side and the rectangular shape gasbag 44 in right side second, the second small-size gasbag 41 with the third small-size gasbag 42 is located the big gasbag 21 of back structural slab bottom is just preceding side, first rectangular shape gasbag 43 with the rectangular shape gasbag 44 bilateral symmetry of second for wrap up the waist.

Further, the second small air bag 41 is preferably a small multi-layer air bag, and more preferably a small three-layer air bag, and takes charge of massaging the middle back of the human body. The third small air bag 42 is preferably a small multi-layer air bag, and more preferably a small three-layer air bag, and is responsible for massaging and supporting the lower back of the human body. The first elongated air bag 43 and the second elongated air bag 44 are preferably elongated double-layer air bags having the same structure, and are used for wrapping and supporting the waist of the human body from both sides and assisting in massaging by matching with other air bags.

The first small air bag 22, the second small air bag 41, the third small air bag 42, the first strip-shaped air bag 43 and the second strip-shaped air bag 44 are mutually matched, and multi-level massage service is provided for the back and the waist of the human body through the rhythmic movement of inflation and deflation.

The first elongated airbag 43, the second elongated airbag 44, the second small airbag 41, and the third small airbag 42 are located at specific relative positions on the front side of the large airbag 21. When a person sits at different positions of the seat and sits half-way or deep, the large air bag 21 is inflated as a bottom support, and the second small air bag 41 and the third small air bag 42 are matched with each other and provide massage service for the back of the person 8. The first strip-shaped air bag 43 and the second strip-shaped air bag 44 are installed in the cloth bag 31 at the front side, the relative positions of the rear sides of the first strip-shaped air bag and the second strip-shaped air bag are arranged at the two sides of the back structure plate 1, and the waist position of a person can be wrapped due to the fact that the two sides of the back structure plate 1 are inwards concave and the special shape of the strip-shaped air bags is combined, so that the fatigue of the person who sits for a long time is weakened. When a person sits deeply, the first and second elongated air cells 43 and 44 swell to provide wrapping and supporting services for the waist of the person.

Fig. 5 is a view of the first and second airbag layers 2 and 4 without the first isolation surface 3. As shown in fig. 5, if the first isolation surface 3 is not disposed between the first airbag layer 2 and the second airbag layer 4, the second airbag layer 4 located at the rear side will push the first airbag layer 2 to turn over and deflect simply after swelling, which is not a disadvantage, and during the pushing process, the first airbag layer 2 directly contacts with the second airbag layer 4 to generate friction noise, and more importantly, because the friction force is large, the turned second airbag layer 4 cannot be safely returned, resulting in product failure.

Example 2

The present embodiment provides a seat back, which is different from the seat back provided in embodiment 1 in that in this embodiment, a second air bag layer 4 is connected to a front side surface of the first isolation surface 3, an auxiliary air bag layer is connected to a rear side surface of the first isolation surface 3, and the auxiliary air bag layer and the second air bag layer 4 are arranged in a staggered manner. The auxiliary bag layer can control the direction of inflation of the second bag layer 4. Specifically, when the auxiliary airbag layer is located below the second airbag layer 4, the auxiliary airbag layer bulges to control the second airbag layer 4 to deflect upward; when the auxiliary airbag layer is positioned above the second airbag layer 4, the auxiliary airbag layer is inflated to control the second airbag layer 4 to deflect downwards; when the auxiliary airbag layer is positioned on the left side of the second airbag layer 4, the auxiliary airbag layer bulges to control the second airbag layer 4 to deflect towards the right side; when the auxiliary airbag layer is located on the right side of the second airbag layer 4, the auxiliary airbag layer bulges to control the deflection of the second airbag layer 4 towards the left side.

Example 3

Fig. 6 is a schematic structural view of a seat back according to embodiment 3 of the present invention, showing a state in which the first air bag layer 2 is inflated. Fig. 7 is a combination view of the first air bag layer 2, the hard plate 32, and the second air bag layer 4 of the seat back according to embodiment 3 of the present invention in a bulging state.

As shown in fig. 6 to 7, the present embodiment provides a seat back which is a modification of the seat back according to embodiment 1, and is different from embodiment 1 in that:

in this embodiment, the first isolation surface 3 is a hard plate 32, the second air bag layer 4 is installed on the front side surface of the hard plate 32, and the hard plate 32 is elastically connected with the edge of the back structural plate 1, which is not shown in fig. 6. The elastic connection method can use elastic cloth, elastic thread, spring, memory metal and other materials with elastic deformation characteristics to connect the back structural plate 1 and the hard plate 32.

Through the edge elastic connection of hard board 32 and back structure board 1 for when back structure board 1 is the non-parallel face with human demand face 81, hard board 32 can rotate along the surface of the first gasbag layer 2 after inflating and swell and make second gasbag layer 4 on hard board 32 self-adaptively rotate to the direction of rotation that arrow is schematic in figure 6 of human demand face 81, make second gasbag layer 4 can continuously hug closely human demand face 81.

Fig. 8 is a schematic structural view of a seat back according to embodiment 3 of the present invention, showing a state where the first air bag layer 2 is not inflated. As shown in fig. 8, when the first air bag layer 2 is in an uninflated or deflated state, the hard panel 32 on the front side of the first air bag layer 2 is attached to the back structure panel 1, and the second air bag layer 4 on the hard panel 32 provides support toward the front side.

Example 4

The present embodiment provides a seat back, which is based on the improvement of embodiment 3, and the present embodiment is different from embodiment 2 in that:

in this embodiment, the second bladder layer 4 includes a plurality of bladders, at least one of which is slidably connected to the rigid panel 32. The coordinate position of the air bag relative to the hard plate 32 can be changed through the sliding connection, so that the supporting position of a user is changed, and more functions are realized. Further, the airbag slidably attached to the hard plate 32 can also serve as an auxiliary airbag for applying a pushing force to the airbag located on the front side, thereby controlling the direction in which the airbag located on the front side bulges.

Example 5

Fig. 9 is an exploded view of a seat back provided in embodiment 5 of the present invention, not all of the air bags shown. As shown in fig. 9, the present embodiment provides a seat back having a three-layer airbag structure, which is based on a modification of any one of embodiments 1 to 4, and is different from the above-described embodiments in that: in this embodiment, the seat back further includes: the second isolation surface 5 is arranged on the front side of the second air bag layer 4; the third air bag layer 6 is arranged on the front side of the second isolation surface 5 and the rear side of the front end surface 7 of the backrest, the second isolation surface 5 separates the second air bag layer 4 from the third air bag layer 6 to avoid direct contact of the second air bag layer and the third air bag layer when the air bags are inflated and inflated, and the third air bag layer 6 is a single-layer air bag which can be inflated and inflated to be hardened in a period of time.

Example 6

Fig. 10 is a schematic structural view of a back front end surface 7 of a seat back according to embodiment 6 of the present invention.

The present embodiment provides a seat back, which is a modification based on any one of embodiments 1 to 5, and is different from the above embodiments in that:

as shown in fig. 10, the backrest front end surface 7 of the present embodiment is a composite type multilayer structure including:

a fabric layer 71 adapted to face the human body requirement face 81, the fabric layer 71 having breathability and/or waterproofness;

the supporting layer 72 is used for controlling the overall hardness of the front end face 7 of the backrest;

and the temperature control layer 73 is used for controlling the surface temperature of the front end surface 7 of the backrest.

The positions of the support layer 72 and the temperature control layer 73 can be interchanged, and preferably, in the present embodiment, the support layer 72 is located between the fabric layer 71 and the temperature control layer 73.

The fabric layer 71 is preferably a super waterproof breathable fabric, which can prevent water and simultaneously allow sweat and water vapor on the contact surface to be smoothly discharged, so as to keep the contact surface dry. The support layer 72 preferably comprises sponge, latex, etc. with different hardness, and the hardness of the material can be controlled by the selection of the material. The temperature control layer 73 is preferably a heating wire heating layer or a graphene heating layer, and the surface temperature of the product can be controlled through the heating wire heating layer or the graphene heating layer.

Example 7

This embodiment provides a chair, including the seat and the backrest of any one of embodiments 1 to 5, wherein the seat and the backrest may be connected by using the existing connection method of the seat and the backrest.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (12)

1. A seat back, comprising:

a back structural panel (1);

the first air bag layer (2) is arranged on the front side of the back structural plate (1) and is used for supporting the waist and/or the back of a user when the inflatable drum is inflated;

the first isolation surface (3) is arranged on the front side of the first air bag layer (2);

the second air bag layer (4) is arranged on the front side of the first isolation surface (3), and the first isolation surface (3) separates the first air bag layer (2) from the second air bag layer (4) so as to avoid direct contact of the first air bag layer and the second air bag layer when the air bag is inflated and inflated;

the backrest front end face (7) is arranged on the front side of the second air bag layer (4) and is used for being in contact with a human body demand face (81).

2. The seat back according to claim 1, characterized in that the first insulation surface (3) is a flexible surface.

3. The seat back according to claim 2, wherein the first insulation surface (3) is a cloth bag (31) connected to the back surface of the front back surface (7), and the second air bag layer (4) is placed in the cloth bag (31).

4. The seat back according to claim 3, wherein the second air bag layer (4) comprises a plurality of air bags, the first separation surface (3) is a plurality of cloth bags (31) connected to a back surface of the back front end surface (7), and the plurality of air bags are respectively placed in the plurality of cloth bags (31).

5. The seat back according to claim 2, characterized in that a second air bag layer (4) is connected to the front side of the first isolation surface (3), and an auxiliary air bag layer is connected to the rear side of the first isolation surface (3), and the auxiliary air bag layer and the second air bag layer (4) are arranged in a staggered manner, so that the inflation and bulging of the auxiliary air bag layer can change the bulging direction of the second air bag layer (4).

6. The seat back according to claim 1, wherein the first isolation surface (3) is a rigid plate (32), the second air bag layer (4) is installed on the front side surface of the rigid plate (32), the rigid plate (32) is elastically connected with the edge of the back structure plate (1), and when the back structure plate (1) and the human body demand surface (81) are non-parallel, the second air bag layer (4) on the rigid plate (32) is self-adaptively rotated to the human body demand surface (81) by the rotation of the rigid plate (32) along the surface of the first air bag layer (2) inflated by the air.

7. The seat back according to claim 6, wherein the second air bag layer (4) comprises a plurality of air bags, at least one of which is slidably connected to the rigid plate (32).

8. The seat back of claim 6, further comprising:

the second isolation surface (5) is arranged on the front side of the second air bag layer (4);

the third air bag layer (6) is arranged on the front side of the second isolation surface (5) and the rear side of the front end face (7) of the backrest, the second isolation surface (5) separates the second air bag layer (4) from the third air bag layer (6) to avoid direct contact of the second air bag layer and the third air bag layer when the air bags are inflated and inflated, and the third air bag layer (6) is a single-layer air bag which can be inflated and inflated to harden in a period of time.

9. The seat back according to any one of claims 1 to 8, wherein the first air bag layer (2) comprises a large air bag (21) provided at the bottom of the back structure panel (1) for supporting the lumbar back, a first small air bag (22) provided at the middle of the back structure panel (1), and a long and flat air bag (23) provided at the upper portion of the back structure panel (1) for supporting the upper back and the neck; and/or the presence of a gas in the gas,

second gasbag layer (4) are including the second small-size gasbag (41) that is located the middle part upside, the third small-size gasbag (42) of middle part downside, the first rectangular shape gasbag (43) in left side and the rectangular shape gasbag (44) of right side second, second small-size gasbag (41) with third small-size gasbag (42) are located the big gasbag (21) of back structure board (1) bottom is positive front side, first rectangular shape gasbag (43) with the rectangular shape gasbag (44) bilateral symmetry of second for the parcel waist.

10. Seat back according to any of claims 1 to 8, characterized in that the back front face (7) is a composite multilayer structure comprising:

a fabric layer (71) adapted to face the human body requiring face (81), the fabric layer (71) having breathability and/or waterproofness;

the supporting layer (72) is used for controlling the overall softness and hardness of the front end surface (7) of the backrest;

and the temperature control layer (73) is used for controlling the surface temperature of the front end surface (7) of the backrest.

11. The seat back according to any one of claims 1-8, wherein each air cell is individually inflatable and deflatable.

12. A seat comprising the seat back of any of claims 1-10.

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