CN112932151B - Seat unit and seat convenient to switch sitting and standing postures - Google Patents
Seat unit and seat convenient to switch sitting and standing postures Download PDFInfo
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- CN112932151B CN112932151B CN202110160882.8A CN202110160882A CN112932151B CN 112932151 B CN112932151 B CN 112932151B CN 202110160882 A CN202110160882 A CN 202110160882A CN 112932151 B CN112932151 B CN 112932151B
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- control assembly
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C13/00—Convertible chairs, stools or benches
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
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Abstract
The invention discloses a seat unit and a seat convenient for switching sitting and standing postures, wherein the seat unit comprises a main support body, two side support bodies and a posture switching mechanism; the gesture switching mechanism comprises a control component and a bracket; the support is fixedly connected with the main support relatively, the control assembly moves on the support and acts on the side supports, and the two side supports rotate along with the movement of the control assembly, so that the linkage of the two side supports is realized; the seat includes a lumbar support and the seat unit described above, which moves in synchronization with the control assembly and provides effective lumbar support to the user at all times. Compared with the prior art, the control component controls the overturning of the side support body, so that the sitting and standing postures of the seat unit are switched, the operation can be completed by one hand, and the operation is more convenient and labor-saving; the lumbar support which moves synchronously with the control assembly improves the comfort of the seat.
Description
Technical Field
The invention relates to the field of seats, in particular to a seat unit and a seat convenient for switching sitting and standing postures.
Background
Office staff and students sitting for a long time are more and more common, and the common seat used is difficult to adjust the posture, so that people can feel tired easily due to the fact that one person stands for a long time and the leg load is too heavy from the physiological aspect; people feel uncomfortable or tired after sitting for a long time, and various diseases such as hypomnesis, headache, dizziness, lumbar vertebra, cervical vertebra and the like can be caused by insufficient cerebral blood supply, weight of the whole body pressing on the bottom end of the vertebra and the like, so that the health is not good; so in order to solve a series of problems caused by sedentary sitting, people invent a sitting standing chair which can be switched between sitting posture and standing posture.
The seat is divided into three parts, the main support body is used as a seat main body to support and connect with a chassis, and the side support bodies are symmetrically arranged at the left side and the right side of the main support body, the side support bodies rotate relative to the main support body, the seat is enabled to have a sitting posture state and a standing posture state by different positions reached after the side support bodies rotate, and the position of the side support bodies is limited and locked by a limiting and locking mechanism controlled by a switch; when the seat is switched between sitting and standing states, the operation is complex, and because the side supporting bodies are independent, two independent limiting and locking mechanisms are needed, so that the production cost is increased and the assembly time is increased; meanwhile, when the sitting and standing postures are switched, the two side supporting bodies are required to be turned over respectively, and the operation is troublesome; therefore, it is a key point how to link the two side supports.
Disclosure of Invention
In order to solve the technical problems, the invention provides a seat unit convenient for switching sitting postures, which is characterized in that a posture switching mechanism fixed relative to a main support body acts on side support bodies arranged on the left side and the right side of the main support body in a rotating way, so that the two side support bodies rotate along with the movement of a control assembly, and the linkage of the two side support bodies is realized; when the two side supporting bodies rotate to a flat-laying posture along with the control assembly, the seat is in a sitting posture state, and the main supporting bodies and the side supporting bodies form a seat surface for a user to sit flat; when the two side supporting bodies are turned up to the vertical posture along with the control assembly, the seat is in the standing posture state, and the two side supporting bodies form a standing posture supporting body which is close together for a user to ride.
And then provides a seat, still is connected with the waist on the control assembly and leans on with control assembly synchronous motion, when the side supporter is in tiling gesture or upright gesture, the waist leans on also being in corresponding position, provides effectual lumbar support for the user all the time, has improved the travelling comfort of seat.
The technical scheme of the invention is realized as follows:
a seating unit for facilitating switching between sitting and standing positions, comprising:
a main support configured to support a main body of the seat surface;
the side support bodies are symmetrically arranged on the left side and the right side of the main support body and are rotationally connected with the main support body;
the gesture switching mechanism is configured to drive the two side supporting bodies to synchronously rotate and comprises a control component acting on the side supporting bodies; the control assembly is arranged on a bracket and moves along the bracket, and the bracket and the main support body are kept relatively fixed;
when the control assembly moves on the bracket towards one direction, the two side supporting bodies respond to the movement of the control assembly and rotate relative to the main supporting body, and the two side supporting bodies are converted from a flat-laying posture to an upright posture and form a standing posture supporting body which is close together for a user to ride; when the control assembly moves on the support in the opposite direction, the two side supporting bodies and the main supporting body rotate relatively, and the two side supporting bodies are converted into a tiling posture from an upright posture and form a seat surface for a user to sit flat.
The seat unit acts on the side supports arranged on the left side and the right side of the main support in a rotating way through the control assembly arranged on the support fixed relative to the main support, so that the two side supports are rotated along with the movement of the control assembly, the linkage of the two side supports is realized, the structure is simple and easy to realize, the switching of the side supports between the tiling posture and the standing posture is convenient, namely, the seat unit is simpler and faster in sitting posture switching, and a user can be attracted to use the function; the seat unit has a sitting posture state and a standing posture state; in a sitting posture: the side supporting bodies are in a flat-laying posture to form a seat surface for a user to sit flat; standing posture state: the side support body rotates relative to the main support body and enables the side support body to be turned upwards to an upright posture, and meanwhile the side support bodies are close together to form a standing posture support body for a user to ride; the seat unit realizes the switching between sitting posture and standing posture through the change of the tiling and upturning of the side supporting bodies, has simple structure and convenient operation, and increases the basic height when the side supporting bodies upturn, thereby being beneficial to riding or leaning of a user in the standing posture state; the supporting leg part of the seat can be provided with a standardized lifting air rod mechanism, so that the lifting can be realized without adding extra cost.
Preferably, the support is a back support, the back support is arranged approximately vertically, and the back support is arranged behind the main support and protrudes upwards from the main support; the control component moves up and down along the height direction of the back support. The back support is used as a support of the gesture switching mechanism besides the function of connecting the chair back, redundant parts are reduced, manufacturing cost is reduced, assembly efficiency is improved, meanwhile, the weight of the chair is reduced, and transportation is facilitated and cost of transportation is reduced.
Preferably, an auxiliary moving member is arranged at the upper end of the back support, the auxiliary moving member is connected with the control assembly, and the auxiliary moving member is configured to assist movement of the control assembly. The auxiliary moving part enables a user to save more effort when switching the sitting and standing postures of the chair.
Preferably, the auxiliary moving member is a coil spring, a coil spring mounting seat is arranged on the back support, the coil spring mounting seat comprises a mounting rod arranged along the left-right direction of the seat, and the coil spring is mounted on the mounting rod and one end of the coil spring is connected to the control assembly. The coil spring can rise at control assembly, and the side supporter is turned over by the tiling gesture and is provided the helping hand when being upright gesture, descends at control assembly, and the side supporter is rotated by upright gesture and is provided the buffering when being tiled gesture, has both made things convenient for the switching of sitting posture, has improved the security when switching again.
Preferably, the coil spring mounting seat is fixedly arranged at the middle position of the upper part of the back bracket; the two coil springs are bilaterally symmetrical and are arranged on the mounting rod at intervals. The auxiliary pulling force generated by the two coil springs is larger, and the stability of the control assembly during lifting can be kept.
Preferably, the coil spring mounting seat is fixedly arranged at the middle position of the upper part of the back bracket; the coil spring is arranged at the middle position of the mounting rod. The use of a single coil spring is less costly, requires less installation and is more efficient.
Preferably, a limiting locking mechanism for limiting the rotation of the side support body is arranged between the control assembly and the bracket, and the limiting locking mechanism comprises at least two locking positions and a lock pin selectively entering the locking positions. The limiting locking mechanism is used for keeping the side support body at a specific position, namely, in a flat-laying posture and an upright posture, the side support body is locked by the limiting locking mechanism, so that the stable use of the seat in a sitting and standing posture state is ensured.
Preferably, the lock pin is arranged on the control assembly, the control assembly comprises a handle, and the handle is configured to be pulled by a user to drive the whole control assembly to move; the bracket is a square frame and comprises locking parts at the left side and the right side, the handle is positioned between the two locking parts, and the locking position is arranged at the side, close to the handle, of the two locking parts. The bracket is a square frame, so that the handle can be accommodated in the bracket and is not too abrupt due to the fact that the handle protrudes and is integral.
Preferably, the locking positions are two locking grooves arranged at different positions of the locking parts, the locking grooves on the two locking parts are symmetrically arranged, and the locking grooves are respectively a sitting posture locking groove and a standing posture locking groove; a push switch which is in sliding fit with the handle is arranged in the handle; the left side and the right side of the push switch are respectively provided with the lock pin, and the lock pins synchronously slide with the push switch under the action of the push switch and are switched between the sitting posture locking groove and the standing posture locking groove. The push switch is arranged in the handle, the lock pin is arranged on the push switch, and the structure is simple and attractive; the push switch is controlled to drive the lock pin so as to realize the separation of the lock pin and the locking groove, and the operation is simple, thereby being convenient for the switching of sitting and standing postures.
Preferably, the movement direction of the push switch is perpendicular to the plane of the two locking parts; the lock pin is arranged towards the locking part; the lock pin is positioned in the sitting posture locking groove, and the two side supporting bodies are in a flat-laying posture and locked; the push switch moves away from the plane where the two locking parts are located, the lock pin leaves the sitting posture locking groove, and the two side supporting bodies are unlocked; the handle moves towards the standing position locking groove until the lock pin is positioned at the standing position locking groove, the press switch moves towards the plane where the two locking parts are positioned, the lock pin enters the standing position locking groove, and the two side supporting bodies are in an upright state and are locked.
Preferably, a spring is arranged between the push switch and the handle. After the push switch drives the lock pin to leave the locking groove, the spring is compressed, and when the push switch is used for driving the locking groove again, the spring acts on the push switch to enable the lock pin to enter the locking groove.
Preferably, the device further comprises a sliding guide mechanism, wherein the sliding guide mechanism is arranged between the side support body and the control assembly and comprises a guide groove and a guide pin; the control assembly further comprises a transition connecting plate, the guide groove is arranged on one of the side supporting body and the transition connecting plate, and the guide pin is arranged on the other one of the side supporting body and the transition connecting plate; when the control component moves towards one direction on the bracket, the guide pin slides in the guide groove and drives the side support body to rotate. The guide groove in the sliding guide mechanism acts with the guide pin, so that the side support body can be driven to move correctly when the control assembly moves, and the side support body can be switched between a tiling posture and an upright posture.
Preferably, the device also comprises a link mechanism, wherein the link mechanism is arranged between the side support body and the control assembly and is respectively connected with the side support body and the control assembly in a rotating way; when the control assembly moves towards one direction on the support, the link mechanism drives the side support body to rotate.
Preferably, the left side and the right side of the bracket are respectively provided with a connecting rod mechanism; the link mechanism comprises a link connected with the single side support body; one end of the connecting rod is rotationally connected with the control component, and the other end is rotationally connected with the side supporting body. When the control assembly moves towards one direction, the connecting rod is driven by the control assembly so as to drive the side support body to turn over; the connecting rod is rotationally connected with the control assembly and the side support body to convert the linear motion of the control assembly into the rotary motion of the side support body.
Preferably, the outer side part of the side support body is extended downwards to form an extension part, and the extension part is in a vertical lug shape; the control assembly drives the side support body to change from a flat-laid posture to an upright posture, and the two extending parts are close to each other and close together to form a seat surface for a user to ride. The arrangement of the extension portion improves the comfort of use of the seat unit in the standing position.
A seat comprises a lumbar support and the seat unit, wherein the support is arranged approximately vertically, and the lumbar support is connected to the control assembly and ascends and descends along the support synchronously with the control assembly. The lumbar support and the control component synchronously move, and when the side support body is in a flat-laid posture or an upright posture, the lumbar support is also in a corresponding position, so that effective lumbar support is provided for a user all the time, and the comfort of the seat is improved.
The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:
the invention provides a seat unit and a seat convenient for switching sitting and standing postures, which are compared with the prior art:
1. from the viewpoint of improving the operation convenience, a user can drive the side supporting bodies on two sides to rotate together only by moving the control assembly, so that one-hand operation is realized, and the operation is more convenient; an auxiliary moving part is arranged on the control component to provide assistance for the movement of the control component, so that the sitting and standing posture switching is more labor-saving; the lock pin is controlled to enter or leave the locking groove through the push switch so as to lock or unlock the side support body, the operation is simple, and meanwhile, the lock pin can automatically enter the locking groove through the spring between the push switch and the handle, so that the operation is convenient.
2. From the realization degree of sitting and standing posture switching, the seat unit has a sitting posture state and a standing posture state; in a sitting posture: the side supporting bodies are in a flat-laying posture to form a seat surface for a user to sit flat; standing posture state: the side support body rotates relative to the main support body and enables the side support body to be turned upwards to an upright posture, and meanwhile the side support bodies are close together to form a standing posture support body for a user to ride; the seat unit realizes the switching between sitting posture and standing posture through the change of the tiling and upturning of the side supporting bodies, has simple structure and convenient operation, and increases the basic height when the side supporting bodies upturn, thereby being beneficial to riding or leaning of a user in the standing posture state; the supporting leg part of the seat can be provided with a standardized lifting air rod mechanism, so that the lifting can be realized without adding extra cost.
3. From the cost, the sitting height is increased after the side supporting body is turned upwards, and only one lifting air rod is needed to be equipped to better adapt to the height requirement of a user; the lifting air rod does not need to be specially made, a plurality of lifting air rods or other lifting devices are not needed, the standard air rods used for common seats can meet the requirements, the material cost is reduced, the weight is reduced, and the transportation cost is reduced; in addition, because the side support body is linked, only one set of limiting and locking mechanism is needed, and the limiting and locking mechanism is designed in the gesture switching mechanism, so that the mechanism is simplified, and the cost of parts is further saved.
4. The lumbar support and the control component synchronously move, and when the side support body is in a flat-laid posture or an upright posture, the lumbar support is also in a corresponding position, so that effective lumbar support is provided for a user all the time, and the comfort of the seat is improved.
Drawings
FIG. 1 is a front view showing the transition between the sitting posture and the standing posture in embodiment 1 of the present invention;
FIG. 2 is a plan view of the seat unit in a sitting posture in embodiment 1 of the present invention;
fig. 3 is a schematic perspective view of the seat unit in a sitting posture according to embodiment 1 of the present invention;
fig. 4 is a schematic perspective view of the seat unit in a sitting posture according to the second embodiment 1;
fig. 5 is a perspective view showing a third configuration of the seat unit in a sitting posture state in embodiment 1 of the present invention;
fig. 6 is a rear view of the seating unit in a seated position in embodiment 1 of the present invention;
fig. 7 is a schematic perspective view of the seat unit in the standing posture state in embodiment 1 of the present invention;
fig. 8 is a rear view of the seat unit in the standing state in embodiment 1 of the present invention;
fig. 9 is a schematic perspective view of a working plate in embodiment 1 of the present invention;
FIG. 10 is a side view of the work plate of the present invention in example 1;
fig. 11 is a schematic perspective view of the handle and the push switch in embodiment 1 of the present invention;
fig. 12 is a schematic perspective view of the seat in a sitting posture in embodiment 2 of the present invention;
FIG. 13 is a front view of the triangle of example 2 of the present invention;
fig. 14 is a rear view of the seat in a sitting posture in embodiment 3 of the present invention.
The reference numerals are as follows: a main support 1; a side support body 2; an extension 3; a control assembly 4; a back support 5; a locking part 6; a handle 7; a slide assembly 8; a slip plate 9; a connection part 10; a mounting portion 11; a coil spring 12; a coil spring mounting base 13; a mounting bar 14; a lock pin 15; pressing the switch 16; a waist-shaped hole 17; a sitting posture locking groove 18; a standing position locking groove 19; a guide groove 21; a guide pin 22; a work plate 23; a connection plate 24; a connector plate 25; a guide pin carrier plate 26; an open end 27; tail end 28; lumbar support 29; triangle 30; a connecting rod 31.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
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 described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, the term "at least one" refers to 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 embodiments of the present invention are as follows:
example 1: as shown in fig. 1, the present invention provides a seat unit for facilitating switching of sitting and standing postures, comprising a main support body 1, a side support body 2 and a posture switching mechanism.
First, a simple description is given of the manner in which the seat unit achieves sitting and standing posture conversion: the main support body 1 is configured as a main body support of a seat surface of the seat unit, the side support bodies 2 are symmetrically arranged at the left side and the right side of the main support body 1, and the side support bodies 2 are rotatably connected with the main support body 1 through a rotating shaft.
The seat unit has a sitting posture state and a standing posture state; as shown in fig. 2 and 3, in the sitting posture: the main support body 1 and the side support bodies 2 are in a flat-laying posture, namely the side support bodies 2 are flat-laid on two sides of the main support body 1 to form a seat surface for a user to sit flat; as shown in fig. 7 and 8, the standing posture state: the side support bodies 2 rotate relative to the main support body 1 and enable the side support bodies 2 to be turned upwards to an upright posture, and the two side support bodies 2 are close together to form a standing posture support body for a user to sit on or lean against.
In order to make the seat unit more convenient and faster when switching between sitting and standing states, and simultaneously reduce the number of limit locking mechanisms on the seat unit so as to reduce the production cost and save the assembly time, an attitude switching mechanism is required to be arranged, the attitude switching mechanism is controlled to enable the seat unit to be switched between the sitting state and the standing state, and the attitude switching mechanism acts on the two side supporting bodies 2 simultaneously and enables the two side supporting bodies 2 to synchronously rotate; specifically:
as shown in fig. 3-7, the side support body 2 is integrally C-shaped and encloses the main support body 1, the side support body 2 includes an extension portion 3 that is far away from the main support body 1 and protrudes downward, and in a sitting posture state, the extension portion 3 is in a tab shape and hangs down from two sides of the seat unit; in the standing position, the two extensions 3 rotate with the side supports 2 and are brought together to form a seating surface for the user to sit on or lean against.
The gesture switching mechanism is arranged on the main support body 1 and acts on the two side support bodies 2; the gesture switching mechanism comprises a control component 4 acting on the side support body 2 and a bracket which is relatively fixed with the main support body 1, wherein the bracket is a back bracket 5 connected with the main support body 1, and the back bracket 5 is approximately vertically arranged and protrudes upwards from the main support body 1; the control component 4 is arranged on the back support 5 and is lifted along the back support 5; when the control component 4 moves towards one direction on the bracket, the two side supporting bodies 2 respond to the movement of the control component 4 and rotate relative to the main supporting body 1, the two side supporting bodies 2 are changed from a flat-laid posture to an upright posture to form a standing posture supporting body which is closed together for a user to ride or lean on, and the extension part 3 rotates along with the side supporting bodies 2 and is closed together to form a seat surface for the user to ride or lean on; when the control assembly 4 moves on the support in the opposite direction, the two side support bodies 2 and the main support body 1 rotate relatively, and the two side support bodies 2 are converted from an upright posture to a flat posture and form a seat surface for a user to sit flat together with the main support body 1.
For a simple mechanism, the motion of the control assembly 4 on the back support 5 and the motion of the side support body 2 are kept in the same direction, and when the control assembly 4 ascends, the side support body 2 turns upwards; when the control assembly 4 descends, the side support body 2 turns downwards.
Specifically, as shown in fig. 4 to 8, the back support 5 is a square frame, and includes locking portions 6 on the left and right sides; the control assembly 4 comprises a handle 7, the handle 7 being generally U-shaped, the handle 7 being arranged between the two locking parts 6 and protruding back towards the back support 5, the handle 7 being configured such that a user moves the entire control assembly 4 over the back support 5 by pulling the handle 7; the side surfaces of the two locking parts 6 facing the outside of the seat unit are respectively provided with a vertical sliding component 8, the sliding component 8 comprises a sliding strip and a rail, the rail is fixedly connected with the locking parts 6, and the sliding strip is arranged in the rail in a sliding way; the handle 7 is fixedly connected to a sliding plate 9, and an opening of the handle 7 is arranged towards the sliding plate 9; the sliding plate 9 is vertically arranged, left and right side parts are bent to form a connecting part 10, and the connecting part 10 is attached to the sliding strip and connected through screws.
The upper ends of the two locking parts 6 are connected with an installation part 11 together, and an auxiliary moving part is installed on the installation part 11; specifically, the auxiliary moving member is a coil spring 12, a U-shaped coil spring mounting seat 13 is fixedly connected to the mounting portion 11, a mounting rod 14 is arranged on the coil spring mounting seat 13 in a penetrating manner, and the mounting rod 14 is arranged in the left-right direction; two coil springs 12 are arranged on the mounting rod 14, and one end of each coil spring 12 is connected to the sliding plate 9; the coil spring mounting seat 13 is fixedly arranged at the middle position of the upper part of the back bracket 5; the number of the coil springs 12 is not specified, and only one coil spring 12 can be used, when the two coil springs 12 are used, the two coil springs 12 are symmetrically arranged on the mounting rod 14 at intervals, so that the auxiliary pulling force is larger, and the stability of the sliding plate 9 during lifting can be kept; when one coil spring 12 is used, the coil spring is disposed at the middle position of the mounting rod 14, so that the cost is lower, the mounting requirement is lower, and the mounting efficiency is higher; the first scheme is selected in the invention; when the control assembly 4 moves up the back support 5, the coil spring 12 recovers the deformation and acts on the sliding plate 9 and provides upward assistance to the control assembly 4, and when the control assembly 4 moves down the back support 5, the coil spring 12 deforms and acts on the sliding plate 9 and provides a cushion to the control assembly 4 as it descends.
In addition, as shown in fig. 5-7 and 11, in order to provide limit locking for the side support body 2 in a flat or upright posture, a limit locking mechanism for limiting the rotation of the side support body 2 is arranged between the control assembly 4 and the back bracket 5, and the limit locking mechanism comprises at least two locking positions and a pin shaft selectively entering the locking positions; specifically, the lock pin 15 is arranged on the control assembly 4, the control assembly 4 further comprises a push switch 16, a groove is formed on the surface of the handle 7 facing the sliding plate 9, and the push switch 16 is arranged in the groove of the handle 7 and is in sliding fit with the handle 7; waist-shaped holes 17 are formed in the left and right side surfaces of the handle 7, the lock pins 15 penetrate through the waist-shaped holes 17, are fixedly arranged on the push switch 16 in the handle 7 and protrude out of the handle 7, and when the push switch 16 and the handle 7 slide relatively, the lock pins 15 slide in the waist-shaped holes 17.
The locking position can be a locking hole or a locking groove, and in the embodiment, the locking position is a locking groove, namely a sitting posture locking groove 18 and a standing posture sitting posture locking groove respectively; the sitting posture locking groove 18 and the standing posture locking groove 19 are arranged at different heights, the sitting posture locking groove 18 is positioned below the standing posture locking groove 19, and the sitting posture locking groove 18 and the standing posture locking groove 19 are arranged on the side, close to the handle 7, of the two locking parts 6, and the same locking grooves on the two locking parts 6 are symmetrical, namely the same locking grooves are positioned at the same height; the lock pin 15 slides synchronously with the push switch 16 under the action of the push switch 16 and is switched between the sitting posture locking groove 18 and the standing posture locking groove 19, specifically:
as shown in fig. 7 and 11, the movement direction of the push switch 16 is perpendicular to the plane of the two locking parts 6, i.e., the push switch 16 moves in the front-back direction, and the lock pin 15 passes through the waist-shaped hole 17 and is disposed toward the locking parts 6; a spring is arranged between the push switch 16 and the handle 7, and the spring always acts on the push switch 16 to enable the push switch 16 to move forwards; the lock pins 15 are positioned in the sitting posture locking grooves 18, and the two side supporting bodies 2 are in a flat-laid posture and locked; the push switch 16 moves away from the plane of the two locking parts 6, i.e. the push switch 16 moves backwards, the lock pin 15 moves backwards in the waist-shaped hole 17 and leaves the sitting posture locking groove 18, and the two side support bodies 2 are unlocked; the handle 7 is pulled upwards under the assistance of the coil spring 12, namely the lock pin 15 moves towards the standing position locking groove 19 until the lock pin 15 is positioned at the standing position locking groove 19, the push switch 16 moves forwards under the action of the spring, the lock pin 15 moves forwards along with the push switch 16 and enters the standing position locking groove 19, the two side supporting bodies 2 are in an upright state and locked, the seat unit is in a standing position state, and a user can ride on the side supporting bodies 2 at the moment; when the standing posture state is changed into the sitting posture state, the pressing switch 16 is pressed again to enable the lock pin 15 to leave the standing posture locking position, the side support body 2 is unlocked, the handle 7 is pulled downwards at the moment, the side support body 2 can be turned downwards due to gravity, and the coil spring 12 simultaneously provides buffering to avoid rapid turning-down of the side support body 2.
As shown in fig. 5-8, the seat unit is further provided with a sliding guide mechanism between the control assembly 4 and the side support 2, the sliding guide mechanism comprising a guide slot 21 and a guide pin 22; the control assembly 4 further comprises a transition connection plate 24, the guide slot 21 is arranged on one of the side support body 2 and the transition connection plate 24, and the guide pin 22 is arranged on the other of the side support body 2 and the transition connection plate 24; when the control assembly 4 moves on the bracket towards one direction, the guide pin 22 slides in the guide groove 21 and drives the side support body 2 to rotate; in this embodiment, the guide slots 21 are provided on the side support body 2, and the guide pins 22 are provided on the transition plate 24, specifically:
as shown in fig. 7-10, the transition piece comprises two working plates 23, the working plates 23 comprise a connecting plate 24, a connecting plate 25 and a guide pin bearing plate 26, the connecting plates 24 of the two working plates 23 are overlapped and connected together, and the connecting plate 24 is fixedly connected with the sliding plate 9; the guide pin bearing plates 26 of the two working plates 23 are arranged in parallel front and back and are positioned at the same height, and the guide pins 22 are arranged on the two guide bearing plates in a penetrating way; because the two guiding support plates are arranged in parallel front and back, an included angle is formed between the two connecting plates 25, namely, the two connecting plates 25 are smoothly connected with the connecting plate 24 and the guiding pin support plate 26 and are bent to form the same included angle, but the bending position of the connecting plate 25 positioned at the front side is higher than the bending position of the connecting plate 25 positioned at the rear side, so that the two connecting plates form the included angle; the guide grooves 21 are arc-shaped, the guide grooves 21 are formed in the two side support bodies 2, the guide grooves 21 on the two sides are symmetrical with each other, the guide grooves 21 are provided with an open end 27 and a tail end 28, and the path from the open end 27 to the tail end 28 extends from the inner side of the side support bodies 2 to the lower end of the extension part 3 (the relative position relation when the side support bodies 2 are in a flat-laid posture); when the seat unit is in the sitting position, the guide pin 22 is located at the open end 27 of the guide slot 21; pulling the control assembly 4 upwards causes the guide pin 22 to move from the beginning 27 to the end 28, since the guide slot 21 is arcuate and its opening path collides with the movement track of the guide pin 22, the guide pin 22 must drive the side support 2 to turn upwards, and the opening path of the guide slot 21 deflects with the rotation of the side support 2, so that the guide pin 22 can continue to move while remaining in the guide slot 21.
As shown in fig. 6, a seat is further provided, which includes a lumbar support 29 and the seat unit, wherein the lumbar support 29 is disposed on the control assembly 4 and is lifted along the back support 5 in synchronization with the control assembly 4, so that the seat in both sitting and standing states can provide lumbar support for the user, and the comfort of use is improved.
Example 2: the difference between this embodiment and embodiment 1 is the installation position of the slip guide mechanism and the transition piece.
As shown in fig. 12 and 13, the guide pin 22 is fixedly arranged on the side support body 2, and the guide slot 21 is arranged on the transition piece; the transition connecting piece is a triangle 30 and is connected with the control component 4; the guide groove 21 is a straight groove, is formed near the left and right sides of the triangle 30, and is parallel to the corresponding side.
Example 3: the difference between this embodiment and embodiments 1 and 2 is that the slide guide mechanism is replaced with a link mechanism and the transition piece is eliminated.
Specifically, as shown in fig. 14, the link mechanism is disposed between the side support body 2 and the control assembly 4 and is respectively connected with the side support body 2 and the control assembly 4 in a rotating manner; the connecting rod mechanism comprises a connecting rod 31 connected with a single side support body 2, and the left side and the right side of the back support 5 are respectively provided with a connecting rod mechanism, so that the two side support bodies 2 are connected with one connecting rod 31; one end of the connecting rod 31 is hinged with the control assembly 4, and the other end is hinged with the side support body 2; when the control assembly 4 moves on the back support 5 towards one direction, the two connecting rods 31 drive the side support bodies 2 on two sides to turn over at the same time.
Claims (11)
1. A seating unit for facilitating switching between sitting and standing positions, comprising:
a main support configured to support a main body of the seat surface;
the side support bodies are symmetrically arranged on the left side and the right side of the main support body and are rotationally connected with the main support body;
the gesture switching mechanism is configured to drive the two side supporting bodies to synchronously rotate and comprises a control component acting on the side supporting bodies; the control assembly is arranged on a bracket and moves along the bracket, and the bracket and the main support body are kept relatively fixed;
when the control assembly moves towards one direction on the support, the two side supports respond to the movement of the control assembly and rotate relative to the main support, the two side supports turn upwards, are converted from a tiling posture to an upright posture, and form a standing posture support which is close together for a user to ride; when the control assembly moves on the bracket in the opposite direction, the two side supporting bodies and the main supporting body rotate relatively, the two side supporting bodies turn downwards, and the two side supporting bodies are converted into a tiling posture from an upright posture and form a seat surface for a user to sit flat;
a limiting locking mechanism for limiting the rotation of the side support body is arranged between the control assembly and the bracket, and comprises at least two locking positions and a lock pin which selectively enters the locking positions; the lock pin is arranged on the control assembly, the control assembly comprises a handle, and the handle is configured to drive the whole control assembly to move by pulling the handle by a user; the bracket is a square frame and comprises locking parts at the left side and the right side, the handle is positioned between the two locking parts, and the locking positions are arranged at the side, close to the handle, of the two locking parts;
the locking positions are two locking grooves arranged at different positions of the locking parts, the locking grooves on the two locking parts are symmetrically arranged, and the locking grooves are respectively a sitting posture locking groove and a standing posture locking groove; a push switch which is in sliding fit with the handle is arranged in the handle; the left side and the right side of the push switch are respectively provided with a lock pin, and the lock pins synchronously slide with the push switch under the action of the push switch and are switched between a sitting posture locking groove and a standing posture locking groove;
the movement direction of the push switch is perpendicular to the plane where the two locking parts are located; the lock pin is arranged towards the locking part; the lock pin is positioned in the sitting posture locking groove, and the two side supporting bodies are in a flat-laying posture and locked; the push switch moves away from the plane where the two locking parts are located, the lock pin leaves the sitting posture locking groove, and the two side supporting bodies are unlocked; the handle moves towards the standing position locking groove until the lock pin is positioned at the standing position locking groove, the press switch moves towards the plane where the two locking parts are positioned, the lock pin enters the standing position locking groove, and the two side supporting bodies are in an upright state and are locked;
a spring is arranged between the push switch and the handle.
2. The seating unit defined in claim 1, wherein: the support is a back support, the back support is arranged approximately vertically, and the back support is arranged behind the main support body and protrudes upwards from the main support body; the control component moves up and down along the height direction of the back support.
3. The seating unit defined in claim 2, wherein: the upper end of the back support is provided with an auxiliary moving part, the auxiliary moving part is connected with the control assembly, and the auxiliary moving part is configured to assist the movement of the control assembly.
4. A seating unit in accordance with claim 3, wherein: the auxiliary moving part is a coil spring, the back support is provided with a coil spring mounting seat, the coil spring mounting seat comprises a mounting rod arranged along the left-right direction of the seat, and one end of the coil spring is mounted on the mounting rod and connected to the control assembly.
5. The seating unit defined in claim 4, wherein: the coil spring mounting seat is fixedly arranged in the middle of the upper part of the back support; the two coil springs are bilaterally symmetrical and are arranged on the mounting rod at intervals.
6. The seating unit defined in claim 4, wherein: the coil spring mounting seat is fixedly arranged in the middle of the upper part of the back support; the coil spring is arranged at the middle position of the mounting rod.
7. The seating unit defined in claim 1, wherein: the sliding guide mechanism is arranged between the side support body and the control assembly and comprises a guide groove and a guide pin; the control assembly further comprises a transition connecting plate, the guide groove is arranged on one of the side supporting body and the transition connecting plate, and the guide pin is arranged on the other one of the side supporting body and the transition connecting plate; when the control component moves towards one direction on the bracket, the guide pin slides in the guide groove and drives the side support body to rotate.
8. The seating unit defined in claim 1, wherein: the connecting rod mechanism is arranged between the side supporting body and the control assembly and is respectively connected with the side supporting body and the control assembly in a rotating way; when the control assembly moves towards one direction on the support, the link mechanism drives the side support body to rotate.
9. The seating unit defined in claim 8, wherein: the left side and the right side of the bracket are respectively provided with a connecting rod mechanism; the link mechanism comprises a link connected with the single side support body; one end of the connecting rod is rotationally connected with the control component, and the other end is rotationally connected with the side supporting body.
10. The seating unit defined in claim 1, wherein: the outer side part of the side support body is downwards extended with an extension part which is in a vertical lug shape; the control assembly drives the side support body to change from a flat-laid posture to an upright posture, and the two extending parts are close to each other and close together to form a seat surface for a user to ride.
11. A seat, characterized in that: a seating unit comprising a lumbar support and a seating unit as claimed in any one of claims 1 to 10, the support being arranged substantially vertically, the lumbar support being connected to the control assembly and being movable up and down along the support in synchronism with the control assembly.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020101550432 | 2020-03-09 | ||
| CN202010155043 | 2020-03-09 | ||
| CN202011058573 | 2020-09-30 | ||
| CN2020110585731 | 2020-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112932151A CN112932151A (en) | 2021-06-11 |
| CN112932151B true CN112932151B (en) | 2023-07-25 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110160882.8A Active CN112932151B (en) | 2020-03-09 | 2021-02-05 | Seat unit and seat convenient to switch sitting and standing postures |
| CN202120344117.7U Active CN215304379U (en) | 2020-03-09 | 2021-02-05 | Seat unit and seat |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120344117.7U Active CN215304379U (en) | 2020-03-09 | 2021-02-05 | Seat unit and seat |
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| Country | Link |
|---|---|
| CN (2) | CN112932151B (en) |
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| CN1671317A (en) * | 2002-07-23 | 2005-09-21 | 株式会社冈村制作所 | Chair |
| CN2729134Y (en) * | 2004-09-29 | 2005-09-28 | 朱文津 | Lift post |
| CN2775024Y (en) * | 2005-01-27 | 2006-04-26 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Constant force rotary lifter |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN215304379U (en) | 2021-12-28 |
| CN112932151A (en) | 2021-06-11 |
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