CN213820632U

CN213820632U - Chair

Info

Publication number: CN213820632U
Application number: CN202022023296.2U
Authority: CN
Inventors: 叶金; 阮正富
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2020-03-09
Filing date: 2020-09-16
Publication date: 2021-07-30
Anticipated expiration: 2030-09-16
Also published as: CN212878506U; CN111772402A; CN112220261B; CN112220261A; CN111772402B; WO2021179473A1

Abstract

The utility model discloses a chair, which comprises a chair seat, wherein the chair seat comprises at least one pair of side supporting bodies arranged in a mirror image manner, and the side supporting bodies have two states, namely a flat laying seat surface state and a saddle state; the side supporting body is provided with an inner side part and an outer side part, and the outer side part is provided with a standing posture supporting part; when the side supporting bodies are in a flat laying seat surface state, the two side supporting bodies are in a horizontal state, the inner side parts are close to each other, the outer side parts are far away from each other, and the standing supporting parts droop on the two sides of the seat; the side supporting body forms a seat surface for a user to ride on under the state of the saddle with the standing supporting part and the outer side part, and the seat surface is further designed for the purpose of improving the comfort; compared with the prior art, the saddle is formed by the standing position supporting part and the outer side part of the side supporting body, so that a user can ride on the saddle in a comfortable posture, or the curved surface conforming to ergonomics is designed on the standing position supporting part, so that the use comfort of the seat in the standing position state is improved.

Description

Chair

Technical Field

The utility model relates to an office furniture field, in particular to prevent to form seat of long-time sitting problem.

Background

The seat is widely used in the study and work of modern people, and only has the function of sitting for most office chairs or study chairs; physiologically, a person standing for a long time is easy to feel tired due to heavy leg load; people who sit for a long time also feel uncomfortable or tired, and various diseases such as hypomnesis, headache and dizziness, lumbar vertebra and cervical vertebra and the like are caused because of insufficient cerebral blood supply, the weight of the whole body is pressed on the bottom end of the vertebra and the like, so that the health is not good. Sedentariness physical disadvantages have been studied and reported in many ways, where a person standing for a long time wants to sit and stand.

Among sedentary people, it seems that office white-collar workers and students who study in schools sit for the longest time, and they sit for work or study almost all the day, and are difficult to adjust their postures, and not only people are easily fatigued, but also their bodies are easily affected. The solution to this problem is preferably to allow the "sitting" and "standing" of the person to be alternated.

However, in the current seat available in the market, the seat surface in the standing state does not conform to the human engineering, so that the comfort in use is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a seat for preventing the formation of the long-time sitting problem, which comprises a seat base, wherein the seat base comprises a pair of side supporting bodies arranged in a mirror image manner, and the seat base is changed through the state of the side supporting bodies, so that the side supporting bodies form a seat surface for a user to ride and sit under the state of a saddle, and the seat surface is further designed for improving the comfort; if the standing position supporting part and the outer side part of the side supporting body form a saddle for a user to ride on in a comfortable posture, or the standing position supporting part is designed with a curved surface which accords with human engineering, the use comfort of the chair in the standing position state is improved.

The technical scheme of the utility model is realized like this:

a chair comprises a chair seat, wherein the chair seat comprises at least one pair of side supporting bodies arranged in a mirror image manner, and the side supporting bodies have two states, namely a flat seat surface state and a saddle state; the side supporting bodies are provided with an inner side part and an outer side part, the outer side parts of the two side supporting bodies are provided with standing position supporting parts, and the standing position supporting parts are configured to have radian suitable for the thighs to rest; when the two side supporting bodies are in a horizontal state, the inner side parts are close to each other, and the outer side parts are far away from each other, the side supporting bodies are in a flat laying seat surface state, and the standing supporting parts hang down on two sides of the chair seat; when the outer part is higher than the inner part and the two standing position supporting parts are close to each other, the outer parts of the two side supporting bodies and the two standing position supporting parts form a saddle, and the side supporting bodies are in a saddle state.

The switching of the sitting and standing states of the seat is realized by switching the states of the side supporting bodies arranged in a mirror image manner, and when the side supporting bodies are in a flat seat surface state, a user can sit on the seat flatly just like a common seat; when the side supporting body is in the saddle state, the standing position supporting part has the curvature from back to front and downwards, and meanwhile, the side supporting body is smoothly attached to the side supporting body to be attached to the side supporting body, so that a user can ride on the saddle formed by the standing position supporting part and the outer side part like riding a horse, the ergonomics are met, and the use comfort is improved. The side supporting bodies are in a state of a flat laying seat surface, the standing supporting parts are hung on two sides of the seat, the hanging is not strictly vertical to the horizontal plane, the hanging refers to the relative state relation with the side supporting bodies, and the standing supporting parts are in an upright state relative to the flat laying state of the side supporting bodies; the horizontal state of the two side supports is beneficial to the user to sit flat, and the upper surface of the side supports is not strictly horizontal, which allows the surface of the side supports contacting with the hip and leg of the human body to be designed to have an ergonomic contour.

A chair comprises a chair seat, wherein the chair seat comprises at least one pair of side supporting bodies arranged in a mirror image manner, and the side supporting bodies have two states, namely a flat seat surface state and a saddle state; the side supporting bodies are provided with an inner side part and an outer side part, and the outer side parts of the two side supporting bodies are provided with standing posture supporting parts with smooth notches at the front ends; when the side supporting bodies are in a flat laying seat surface state, the two side supporting bodies are in a horizontal state, the inner side parts are close to each other, the outer side parts are far away from each other, and the standing supporting parts droop on the two sides of the seat; when the side support body is in the saddle state, the outer side part is higher than the inner side part, the two standing position supporting parts are close to each other, the standing position supporting parts and the outer side part form a seat surface together, and in the state, the standing position supporting parts have downward curvature from back to front and are smoothly close to the side support body until the side support body and the side support body are combined into a whole.

The thighs of the user can be placed on the curved surface of the standing posture supporting part, and the curved surface conforming to ergonomics can improve the use comfort of the seat; the length of the standing position supporting part is shortened through the smooth notch on the standing position supporting part, so that the problem that the front end of the standing position supporting part presses against the legs of a user to cause discomfort due to the fact that the standing position supporting part is too long is avoided.

Preferably, the outer side surface of the outer side portion of the side support has a waisted curvature in the front-rear direction, and a partial seating surface formed on the outer side portion is a curved surface having a front-rear height and a middle-lower height, and a rear end higher than a front end when the side support is in the saddle state. The partial seat surface formed by the outer side part can be attached to the buttocks of a human body so as to improve the use comfort of the seat.

Preferably, the standing posture support part is provided with a front part, a middle part and a rear part; the length of the front part of the standing position supporting part in the width direction is smaller than that of the front part of the standing position supporting part in the height direction under the state of the saddle, and the front part of the standing position supporting part is formed by extending the front parts of the side supporting parts to two sides; the middle part of the standing position supporting part is flat and long, and the middle part of the standing position supporting part is formed by obliquely and downwardly extending the middle parts of the side supporting bodies; the rear part of the standing posture supporting part is approximately horizontal, and the rear part of the standing posture supporting part is formed by extending the rear parts of the side supporting bodies to two sides; the widths of the middle part and the rear part of the standing posture supporting part are both larger than the width of the front part of the standing posture supporting part.

Preferably, the side support and the standing support are integrally formed as a plate-like body. The integrally formed plate-like body is low in cost and has sufficient support strength.

Preferably, the chair seat further comprises a main support, the side supports are symmetrically arranged on the left side and the right side of the main support and are rotatably connected with the main support, and along the width direction, the inner side parts of the side supports are close to the main support, and the outer side parts of the side supports are far away from the main support; when the side supporting bodies are in the state of a flat seat surface, the main supporting body and the side supporting bodies form a seat surface for a user to sit flatly together.

Preferably, the side support is substantially U-shaped in a horizontal plane, and the main support is surrounded by the two side supports when the side supports are in a flat-bed state; the rotary connecting position of the side supporting body is positioned at the position of the front end and the rear end of the main supporting body, which are close to the inner side respectively. The rotation junction of two collateral branch supporter and main tributary supporter is close, makes two collateral branch supporters turn over the back on, and both intervals are little, and the person of facilitating the use rides and sits to experience feels better.

Preferably, a raised supporting seat is arranged below the main supporting body, the supporting seat is configured to be connected with the seat support assembly, the middle part of the supporting seat sinks, the front end and the rear end of the supporting seat upwarp, the main supporting body is supported by the front end and the rear end of the supporting seat, and the side supporting bodies are rotatably connected with the main supporting body or the supporting seat. The raised supporting seat replaces a heavy chassis with a single appearance, and the overall attractiveness of the seat is improved.

Preferably, the device further comprises a limiting mechanism for limiting the side supporting body to a flat seat surface state or a saddle state; the limiting mechanism comprises a limiting piece and a locking assembly, the limiting piece is arranged on one of the main support body or the side support body, and the limiting piece is provided with at least two locking positions; a locking assembly mounted on the other of the main support or the side supports, the locking assembly including a selectively movable locking pin; when the side supporting body is in a flat laying seat surface state or a saddle state, the lock pin is in locking fit with the corresponding locking position to limit and lock the limiting piece. The side supporting body can be kept in a flat seat surface state or a saddle state through the limiting mechanism, so that the stable use of the seat in sitting and standing states is realized; the limiting part and the locking assembly are used in a matched mode to realize limiting, the lock pin is matched with the corresponding locking position to finish limiting and locking, the structure and the operation are simple, and a user can conveniently switch the sitting and standing posture state of the seat.

Preferably, the limiting member is a disk-shaped body, and the disk-shaped body is arranged facing to the moving direction of the lock pin; the lock position is a locking groove or a locking hole arranged on the limiting piece, and the lock pin moves along the seat depth direction. The limiting piece of the disc-shaped body cannot be clamped when rotating along with the side supporting body, so that the smooth rotation of the side supporting body is ensured; the lock pin moves along the depth direction of the seat, when the lock pin is inserted into the locking groove or the locking hole, the limiting piece can be locked to rotate, and when the lock pin exits from the locking hole or the locking hole, the limiting piece and the side support body cannot be prevented from rotating.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

1. thus, the common chair with the switching between the flat sitting surface and the saddle or the riding sitting surface which accords with the ergonomics realizes the switching between the sitting posture and the standing posture of the chair, solves the trouble brought to a user by long sitting, simultaneously improves the use comfort in the standing posture state and leads the user to be more willing to accept to work in the standing posture state.

2. The switching of the sitting and standing states of the seat is realized by switching the states of the side supporting bodies arranged in a mirror image manner, and when the side supporting bodies are in a flat seat surface state, a user can sit on the seat flatly just like a common seat; when the side supporting body is in the state of the saddle, a user can ride on the saddle formed by the standing position supporting part and the outer side part like riding a bicycle, which accords with the human engineering and improves the use comfort.

3. The thighs of the user can be placed on the curved surface of the standing posture supporting part, and the curved surface conforming to ergonomics can improve the use comfort of the seat; the length of the standing position supporting part is shortened through the smooth notch on the standing position supporting part, so that the problem that the front end of the standing position supporting part presses against the legs of a user to cause discomfort due to the fact that the standing position supporting part is too long is avoided.

4. The partial seat surface formed by the outer side part can be attached to the buttocks of a human body, and the use comfort of the seat is further improved.

Drawings

Fig. 1 is a front view of the conversion between the sitting posture state and the standing posture state in embodiment 1 of the present invention;

fig. 2 is a schematic perspective view of the seat in a standing posture state according to embodiment 1 of the present invention;

fig. 3 is a schematic perspective view of a seat of the chair in a sitting posture according to embodiment 1 of the present invention;

fig. 4 is a top view of the seat in the sitting position of the present invention in embodiment 1;

fig. 5 is a schematic perspective view of a seat of the chair in a standing posture state according to embodiment 1 of the present invention;

fig. 6 is a side view of the seat in the sitting position of the present invention in embodiment 1;

fig. 7 is a schematic perspective view of a second embodiment of the chair seat in a sitting posture according to the present invention;

fig. 8 is a top view of the chair seat in the standing posture of the embodiment 1 of the present invention;

fig. 9 is a side view of the seat in the standing posture of the present invention in embodiment 1;

FIG. 10 is a cross-sectional view F-F of FIG. 9;

FIG. 11 is a cross-sectional view of M-M in FIG. 9;

FIG. 12 is a cross-sectional view of N-N of FIG. 9;

fig. 13 is a schematic perspective view of a second embodiment of the present invention showing a seat structure of the chair in a standing posture state according to embodiment 1;

fig. 14 is a schematic perspective view of the side support and the main support of the present invention in example 1;

fig. 15 is a schematic perspective view of a position-limiting element on a main support according to embodiment 1 of the present invention;

fig. 16 is a bottom view of the limiting mechanism according to embodiment 1 of the present invention;

fig. 17 is a schematic perspective view of a limiting mechanism according to embodiment 1 of the present invention;

fig. 18 is a schematic perspective view of the paddle of embodiment 1 of the present invention;

fig. 19 is a schematic perspective view of the lock pin according to embodiment 1 of the present invention;

fig. 20 is a schematic perspective view of the conversion between the sitting posture state and the standing posture state in embodiment 2 of the present invention;

fig. 21 is a schematic perspective view of the chair in the sitting posture of the embodiment 2 of the present invention;

fig. 22 is a schematic perspective view of the seat in the standing position of embodiment 2 of the present invention.

The figures are numbered: a main support 1; a side supporter 2; an inner portion 3; an outer section 4; a rotating shaft 7; an auxiliary support body 9; a standing posture support part 10; a limiting mechanism 11; a lift air lever 33; five-star feet 34; a locking assembly 54; a limiting disc 57; a latch 58; a sitting posture locking hole 59; a standing position locking hole 510; a component seat 512; a rotating shaft base plate 513; a floor base 514; a connecting plate 515; a mounting base 517; a paddle 518; a fixed portion 519; a transverse plate 520; a guide member 610; a guide hole 521; a guide plate 611; a control cable assembly 522; a pin shaft hole 523; a latch return spring 527; a support base 90; an outer side surface 91; a notch 92; a support arm 93; a riser 94; a spring mount 612; a detent positioning spring 613; an elastic rubber member 95; an aperture 96; and an annular groove 524.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation manner of the utility model is as follows:

example 1: as shown in fig. 1 and 2, the utility model provides a chair for preventing the problem of sedentary sitting, which comprises a chair seat, wherein the chair seat comprises a pair of side supporting bodies 2 arranged in a mirror image manner, and the side supporting bodies 2 have two states, namely a flat seat surface state and a saddle state; the side supporting bodies 2 are provided with an inner part 3 and an outer part 4, and the outer parts 4 of the two side supporting bodies 2 are provided with standing posture supporting parts 10 with smooth notches 92 at the front ends; when the side supporting bodies 2 are in a flat laying seat surface state, the two side supporting bodies 2 are in a horizontal state so as to facilitate a user to sit flatly, the inner part 3 is close to the outer part 4, and the standing posture supporting parts 10 hang down on the two sides of the seat; when the side support body 2 is in the saddle state, the outer part 4 is higher than the inner part 3, the two standing position supporting parts 10 are close to each other, and the standing position supporting parts 10 and the outer part 4 form a seat surface together. Specifically, the method comprises the following steps:

the chair seat further comprises a main support body 1, wherein the side support bodies 2 are symmetrically arranged on two sides of the main support body 1, and the side support bodies 2 can rotate relative to the main support body 1.

As shown in fig. 2 and 3, the main support 1 is a seat plate, the side supports 2 are substantially U-shaped in the horizontal plane, and when the side supports 2 are in the flat-laid seat state, the main support 1 is surrounded by two side supports 2; a raised supporting seat 90 is arranged below the main supporting body 1, the supporting seat 90 is configured to be connected with a seat supporting component, the middle part of the supporting seat 90 sinks, the front end and the rear end of the supporting seat 90 upwarp, the main supporting body 1 is supported by the front end and the rear end of the supporting seat 90, the side supporting body 2 is rotatably connected with the main supporting body 1 or the supporting seat 90, and in the embodiment, the side supporting body 2 is directly rotatably connected with the main supporting body 1; in this embodiment, the seat support assembly includes a lifting air rod 33 and a five-star leg 34, the lifting air rod 33 is connected between the five-star leg 34 and the supporting seat 90, the main supporter 1 is connected to the upper end of the supporting seat 90, and the main supporter 1 can be lifted by the lifting air rod 33, i.e. the height of the seat can be controlled by the lifting air rod 33 within a certain range.

As shown in fig. 4 and 5, the side support 2 is a plate-like body, the inner portion 3 of the side support 2 is close to the main support 1, the outer portion 4 of the side support 2 is far from the main support 1, and the outer portion 4 is the outer edge of the side support 2, and refers to the outer edge area of the side support 2 in a broad sense, and refers to a portion capable of supporting a human body to sit on in a saddle state as a whole; the outer part 4 is provided with an outer side surface 91, and the outer side surface 91 is positioned at the outermost side of the outer part 4; the outer side surface 91 has a waist-contracting curvature in the front-rear direction, so that the chair seat is in a waist-contracting shape with the widest rear part and the narrowest middle part in a plan view, when the side support body 2 is in a saddle state, part of seat surface formed by the outer side part 4 is a curved surface with the front and rear high and the middle low, and the rear end is higher than the front end, so as to fit the hip of a user, accord with ergonomics, and improve the use comfort of the user during riding.

As shown in fig. 5-13, the standing position support part 10 is disposed on the outer side part 4, the standing position support part 10 is a plate-shaped body extending downward from the outer side part 4, i.e. the side support body 2 and the standing position support part 10 are integrally formed, and the rear part of the standing position support part 10 changes with the curvature of the outer side surface 91, and when reaching the middle part of the standing position support part 10, the standing position support part 10 starts to bend in the opposite direction and is smoothly close to the side support body 2, and when reaching the front part of the standing position support part 10, the standing position support part 10 is completely integrated with the side support body 2, so that a smooth notch 92 is formed at the position where the middle part of the standing position support part 10 transits to the front part; when the side support body 2 is in a saddle state, the rear part of a part of the seat surface formed by the standing support parts 10 is connected with a part of the seat surface formed by the outer side part 4 into a whole to be jointed with the buttocks of a human body together, the middle part and the front part of the seat surface formed by the standing support parts 10 are bent downwards from back to front and are provided with inclined U-shaped curved surfaces with openings facing outwards in the width direction, the outer side part 4 protrudes forwards from the two standing support parts 10 and is positioned between the two standing support parts to be jointed with the thighs of the human body, and the two legs leave the standing support parts 10 from the smooth notches 92 and are perpendicular to the two sides of the side support body 2; the side supporting body 2 is in a saddle state, from front to back, the standing position supporting part 10 is gradually unfolded to be horizontal, namely the included angle between the standing position supporting part 10 and the side supporting body 2 is gradually increased, and specifically, the standing position supporting part 10 is provided with a front part, a middle part and a rear part; when the side supporting body 2 is in a saddle state, the length of the front part of the standing position supporting part 10 in the width direction is smaller than the length of the front part of the standing position supporting part in the height direction, namely the standing position supporting part 10 is flat, and the front part of the standing position supporting part 10 is formed by extending the front part of the side supporting body 2 to two sides; the middle part of the standing position supporting part 10 is flat and long, and the middle part of the standing position supporting part 10 is formed by obliquely and downwardly extending the middle part of the side supporting body 2; the rear part of the standing position supporting part 10 is approximately horizontal, and the rear part of the standing position supporting part 10 is formed by extending the rear parts of the side supporting bodies 2 to two sides; the widths of the middle part and the rear part of the standing posture support part 10 are both larger than the width of the front part.

The chair has a sitting posture state and a standing posture state, which correspond to the flat laying seat surface state and the saddle state of the side supporting body 2; in a sitting posture: the main support body 1 and the side support body 2 are both in a flat-laying posture, that is, the side support body 2 is in a flat-laying seat surface state, the main support body 1 and the side support body 2 together form a seat surface for a user to sit flat, and the seat surface can be a plane or a curved surface conforming to human engineering; when the sitting posture state is converted into the standing posture state, the side supporting bodies 2 on the two sides are respectively turned upwards to be in the vertical posture, the vertical posture does not necessarily limit the side supporting bodies 2 to be kept strictly vertical to the horizontal plane, more means that the side supporting bodies 2 can enable the outer side parts 4 of the side supporting bodies 2 to be in a higher height after being turned upwards, namely the side supporting bodies 2 are in a saddle state, in the process of turning upwards, the main supporting body 1 can be kept fixed, and at the moment, the side supporting bodies 2 can meet the height using requirements of most people in the standing posture state; when the side supporting body 2 is in the upright posture and cannot meet the sitting requirement of the human body in the standing posture, for example, the user is too high or short, the height of the chair seat can be controlled by the lifting air rod 33, so that the requirement of the user can be met.

As shown in fig. 14, the inner side parts 3 of the side supports 2 may be rotatably connected to the left and right sides of the main support 1 by hinges, but in order to satisfy the condition that the side supports 2 have a reasonable height after being turned upwards and allow the two side supports 2 to be drawn together so that a user can ride, the width of the main support 1 is generally reduced, which may make the contact surface of the main support 1 with the support seat 90 small and difficult to arrange; in order to solve the problem, the rotary joints of the side supports 2 are arranged at the positions of the front and rear ends of the main support 1, which are close to the inner sides respectively, so that the main support 1 and the support seat 90 below the main support 1 can keep enough contact area, the side supports 2 can have reasonable height after being turned upwards, and the two side supports 2 can be drawn close as much as possible, so that a user can ride the bicycle conveniently; the main supporting body 1 and each side supporting body 2 are provided with a rotating shaft 7 between the front end and the rear end, and the main supporting body 1 and the side supporting bodies 2 are rotatably connected through the rotating shafts 7.

The above paragraphs describe the core idea of the present invention, and the purpose of changing between sitting and standing is achieved by the upward turning of the side supporting body 2, and the comfort of use and the sitting posture of the human body in the standing posture state are considered to be improved in the practical use, and the optimal design is performed on the standing posture supporting part 10 and the side supporting body 2.

In practical use, in order to enable the seat to be used in the sitting and standing states, the limiting mechanism 11 is required to lock the sitting and standing states and can unlock the seat when the sitting and standing states need to be converted; there are various limiting ways, for example, as follows:

as shown in fig. 15 to 19, the limiting mechanism 11 of the present embodiment includes a limiting member and a locking assembly 54. The seat limiting mechanism 11 is specifically described as follows:

the limiting piece is a disc-shaped body called a limiting disc 57, two locking holes are formed in the limiting disc 57, and the limiting disc 57 is arranged on the side support body 2; the locking assembly 54 is arranged on the main support body 1, and the locking assembly 54 comprises a locking pin 58 which can selectively move; when the side support body 2 is turned over to a preset position relative to the main support body 1, the lock pin 58 is in locking fit with the corresponding locking hole to limit and lock the limiting disc 57.

The side supporting body 2 comprises auxiliary supporting bodies 9, the front parts and the rear parts of which extend towards the middle of the main supporting body 1, and when the side supporting bodies 2 are paved at the left side and the right side of the main supporting body 1, the auxiliary supporting bodies 9 and the side supporting bodies 2 surround the main supporting body 1; the auxiliary supporting body 9 is a part of the side supporting body 2, the limiting plate 57 is installed on the side supporting body 2, in this embodiment, the limiting plate 57 is installed on the front auxiliary supporting body 9; the lock pin 58 moves in the seat depth direction, and the stopper plate 57 is disposed against the moving direction of the lock pin 58.

The limiting disc 57 is fixedly connected with the auxiliary supporting body 9 extended from the side supporting body 2 and is rotationally connected with the main supporting body 1 through the rotating shaft 7; the limiting disc 57 is correspondingly provided with a lock pin 58, and the lock pin 58 can be inserted into or withdrawn from the locking hole to lock or unlock the limiting disc 57; the two locking holes are a sitting posture locking hole 59 and a standing posture locking hole 510 respectively, in a sitting posture state, the side support body 2 is tiled at two sides of the main support body 1, the sitting posture locking hole 59 on the limiting disc 57 is aligned with the lock pin 58, and at the moment, the lock pin 58 moves along the seat depth direction and is inserted into the sitting posture locking hole 59, so that the seat can be locked in the sitting posture state; in the standing state, the side supporting body 2 is turned upwards to be in the vertical state, the standing locking hole 510 on the limiting disc 57 is aligned with the lock pin 58, and at the moment, the lock pin 58 moves along the seat depth direction and is inserted into the standing locking hole 510, so that the seat can be locked in the standing state; when the seat needs to be changed between the sitting and standing states, the latch 58 is moved in the seat depth direction and withdrawn from the locking hole, so that the side support 2 can be rotated with respect to the main support 1 to switch the desired seat state.

The main support 1 is provided with a component seat 512, and the component seat 512 comprises a rotating shaft seat plate 513 and a bottom plate seat 514 for connecting the main support 1; the rotating shaft base plate 513 is positioned at the front side of the main support body 1, and the limiting disc 57 is rotatably connected with the rotating shaft base plate 513 through a rotating shaft 7; the limiting disc 57 is a quarter-round disc, the limiting disc 57 is provided with a connecting plate 515 which is used for being connected and fixed on the auxiliary supporting body 9, the connecting plate 515 is bent relative to the limiting disc 57, the limiting disc 57 and the connecting plate 515 are connected through a support arm 93, and the limiting disc 57, the connecting plate 515 and the support arm 93 are integrally formed.

When the lock pin 58 performs limit locking on the limit disc 57, the lock pin 57 needs to move in the seat front-rear direction, specifically:

as shown in fig. 16 and 17, the locking assembly 54 includes a mounting seat 517 and a shifting piece 518, the mounting seat 517 is disposed on the rotating shaft seat plate 513, the mounting seat 517 includes a fixing portion 519 connected with the rotating shaft seat plate 513 and a horizontal plate 520 for mounting the shifting piece 518, and the horizontal plate 520 and the fixing portion 519 are integrally formed; the rotating shaft base plate 513 is provided with a guide member 610, the guide member 610 is fixedly connected with the rotating shaft base plate 513, the guide member 610 is a U-shaped plate and comprises a guide plate 611 provided with a guide hole 521, and the lock pin 58 is arranged in the guide hole 521; the shifting piece 518 is vertically arranged and is rotationally connected to the transverse plate 520, one end of the shifting piece 518 is rotationally connected with the transverse plate 520, the other end of the shifting piece 518 is connected with the lock pin 58, the shifting piece 518 is connected with the control assembly, the control assembly is arranged in the middle of the shifting piece 518, the control assembly controls the shifting piece 518 to rotate relative to the mounting base 517, and meanwhile, the shifting piece 518 drives the lock pin 58 to move; the control assembly is a control cable assembly 522.

One end of the shifting piece 518 connected with the lock pin 58 is provided with a pin shaft hole 523, and the lock pin 58 is rotatably inserted in the pin shaft hole 523 and is relatively fixed along the length direction of the lock pin 58; specifically, as shown in fig. 18 and 19, an elastic rubber member 95 having a small hole 96 at the center is fixedly disposed in the pin shaft hole 523, and the elastic rubber member 95 can elastically deform in the pin shaft hole 523; the tail end of the lock pin 58 is inserted into one end of the pin shaft hole 523, the annular groove 524 is cut towards the center along the radial direction, when the lock pin 58 is inserted into the pin shaft hole 523, the tail end of the lock pin 58 enters the small hole 96 of the elastic rubber piece 95, the small hole 96 is elastically deformed and is expanded until the annular groove 524 enters the small hole 96, the small hole 96 restores partial deformation, meanwhile, the elastic rubber piece 95 is clamped into the annular groove 524 and clamps the lock pin 58, the elasticity of the elastic rubber piece 95 enables the lock pin 58 and the shifting piece 518 to deflect at a certain angle, and the lock pin 58 can be rotatably inserted into the pin shaft hole 523 and is relatively fixed along the length direction of the lock pin 58.

A vertical plate 94 extends downwards from one end of the transverse plate 520 far away from the rotating shaft seat plate 513, a spring mounting seat 612 is integrally formed on the vertical plate 94, the spring mounting seat 612 is aligned with the locking pin 58, and a locking pin return spring 527 is sleeved on the spring mounting seat 612; a lock pin positioning spring 613 with a preset compression amount is further sleeved on the lock pin 58 in front of the shifting piece 518, and the lock pin positioning spring 613 abuts against the guide plate 611 and acts on the shifting piece 518.

When the control pulling wire assembly 522 controls the shifting piece 518 to rotate relative to the mounting seat 517, the shifting piece 518 drives the lock pin 58 to move the lock pin 58 backwards along the direction of the guide hole 521, the lock pin 58 leaves the locking hole, meanwhile, the shifting piece 518 compresses the lock pin return spring 527, and the lock pin positioning spring 613 extends; when the control cable assembly 522 is released, the pin return spring 527 rebounds to push the pick 518, which in combination with the pin positioning spring 613, causes the pin 58 to be inserted into the locking hole and return to the home position, while the pick 518 also rotates back to the home position.

Example 2: the present embodiment is different from embodiment 1 in that the standing position support part 10 is newly designed in consideration of the sitting position of the user and in consideration of the riding requirement of the user in the standing position state.

A chair for preventing the problem of sedentariness comprises a chair seat, wherein the chair seat comprises at least a pair of side supporting bodies 2 arranged in a mirror image mode, and the side supporting bodies 2 have two states, namely a flat seat surface state and a saddle state; the side supporting bodies 2 are provided with inner side parts 3 and outer side parts 4, the outer side parts 4 of the two side supporting bodies 2 are provided with standing posture supporting parts 10, and the standing posture supporting parts 10 are configured to have radian suitable for the thigh to rest; when the two side supporting bodies 2 are in a horizontal state, the inner part 3 is close to the outer part 4 is far away from the inner part, the side supporting bodies 2 are in a flat laying seat surface state, and the standing posture supporting parts 10 hang down on two sides of the chair seat; when the outer part 4 is higher than the inner part 3 and the two standing position support parts 10 are close to each other, the outer parts 4 of the two side support bodies 2 and the standing position support parts 10 form a saddle, and the side support bodies are in a saddle state.

Specifically, as shown in fig. 1 and 2, the outer side portion 4 extends downward to form a standing position support portion 10, the standing position support portion 10 is a bent plate which is in a tab shape and has a curved surface, and the side support body 2 and the standing position support portion 10 are integrally formed; when the side supporting body 2 is turned up and fixed, the two standing supporting parts 10 are close together, and the standing supporting parts 10 are converted from a drooping state to a roughly horizontal state which is beneficial to supporting the human body, at the moment, the two standing supporting parts 10 form a saddle with a narrower width compared with the sitting position surface in the sitting position state, so that a user can sit on the saddle.

Claims

1. A seat, characterized by: the chair comprises a chair seat, wherein the chair seat comprises at least one pair of side supporting bodies arranged in a mirror image manner, and the side supporting bodies have two states, namely a flat-laying seat surface state and a saddle state; the side supporting bodies are provided with an inner side part and an outer side part, the outer side parts of the two side supporting bodies are provided with standing position supporting parts, and the standing position supporting parts are configured to have radian suitable for the thighs to rest; when the two side supporting bodies are in a horizontal state, the inner side parts are close to each other, and the outer side parts are far away from each other, the side supporting bodies are in a flat laying seat surface state, and the standing supporting parts hang down on two sides of the chair seat; when the outer part is higher than the inner part and the two standing position supporting parts are close to each other, the outer parts of the two side supporting bodies and the two standing position supporting parts form a saddle, and the side supporting bodies are in a saddle state.

2. A seat, characterized by: the chair comprises a chair seat, wherein the chair seat comprises at least one pair of side supporting bodies arranged in a mirror image manner, and the side supporting bodies have two states, namely a flat-laying seat surface state and a saddle state; the side supporting bodies are provided with an inner side part and an outer side part, and the outer side parts of the two side supporting bodies are provided with standing posture supporting parts with smooth notches at the front ends; when the side supporting bodies are in a flat laying seat surface state, the two side supporting bodies are in a horizontal state, the inner side parts are close to each other, the outer side parts are far away from each other, and the standing supporting parts droop on the two sides of the seat; when the side support body is in the saddle state, the outer side part is higher than the inner side part, the two standing position supporting parts are close to each other, the standing position supporting parts and the outer side part form a seat surface together, and in the state, the standing position supporting parts have downward curvature from back to front and are smoothly close to the side support body until the side support body and the side support body are combined into a whole.

3. The seat according to claim 2, wherein: the outer side surface of the outer side part of the side support body has a waist-contracting curvature in the front-rear direction, and when the side support body is in a saddle state, a part of seat surface formed by the outer side part is a curved surface which is high in the front and the rear and is low in the middle, and the rear end of the curved surface is higher than the front end of the curved surface.

4. The seat according to claim 2, wherein: the standing posture supporting part is provided with a front part, a middle part and a rear part; the length of the front part of the standing position supporting part in the width direction is smaller than that of the front part of the standing position supporting part in the height direction under the state of the saddle, and the front part of the standing position supporting part is formed by extending the front parts of the side supporting parts to two sides; the middle part of the standing position supporting part is flat and long, and the middle part of the standing position supporting part is formed by obliquely and downwardly extending the middle parts of the side supporting bodies; the rear part of the standing posture supporting part is approximately horizontal, and the rear part of the standing posture supporting part is formed by extending the rear parts of the side supporting bodies to two sides; the widths of the middle part and the rear part of the standing posture supporting part are both larger than the width of the front part of the standing posture supporting part.

5. The seat according to claim 1 or 2, wherein: the side supporting body and the standing supporting part are integrally formed plate-shaped bodies.

6. The seat according to claim 1 or 2, wherein: the chair seat also comprises a main support body, the side support bodies are symmetrically arranged at the left side and the right side of the main support body and are rotationally connected with the main support body, and the inner side parts of the side support bodies are close to the main support body and the outer side parts of the side support bodies are far away from the main support body along the width direction; when the side supporting bodies are in the state of a flat seat surface, the main supporting body and the side supporting bodies form a seat surface for a user to sit flatly together.

7. The seat according to claim 6, wherein: the side supporting bodies are approximately U-shaped on a horizontal plane, and when the side supporting bodies are in a flat laying seat surface state, the main supporting body is surrounded by the two side supporting bodies; the rotary connecting position of the side supporting body is positioned at the position of the front end and the rear end of the main supporting body, which are close to the inner side respectively.

8. The seat according to claim 6, wherein: the support seat is arranged below the main support body in a raised manner, the support seat is configured to be connected with the seat support assembly, the middle part of the support seat sinks, the front end and the rear end of the support seat upwarp, the main support body is supported by the front end and the rear end of the support seat, and the side support body is rotatably connected with the main support body or the support seat.

9. The seat according to claim 6, wherein: the side support body is limited in a flat laying seat surface state or a saddle state by the limiting mechanism; the limiting mechanism comprises a limiting piece and a locking assembly, the limiting piece is arranged on one of the main support body or the side support body, and the limiting piece is provided with at least two locking positions; a locking assembly mounted on the other of the main support or the side supports, the locking assembly including a selectively movable locking pin; when the side supporting body is in a flat laying seat surface state or a saddle state, the lock pin is in locking fit with the corresponding locking position to limit and lock the limiting piece.

10. The seat according to claim 9, wherein: the limiting piece is a disk-shaped body which is arranged facing the moving direction of the lock pin; the lock position is a locking groove or a locking hole arranged on the limiting piece, and the lock pin moves along the seat depth direction.