CN218474345U - Multifunctional chair - Google Patents

Abstract

The utility model discloses a multifunctional seat, include: a seat back assembly divided into a seat region and a back region; the seat area comprises a front seat support and a rear seat support which are rotatably connected; the front seat supporting body can rotate downwards relative to the rear seat supporting body; the connecting rod mechanism comprises a first connecting rod and a second connecting rod, and the connecting rod mechanism deforms to enable the seat back assembly to be adjusted in a lifting mode relative to the base; the linkage mechanism is arranged between the front seat support body and the four-bar linkage mechanism; the linkage mechanism comprises a sliding seat arranged at the bottom of the front seat supporting body, a guide groove is arranged on the sliding seat, and a guide rod horizontally penetrating in the guide groove is arranged on the first connecting rod or the base; the seat has a sitting posture state and a standing posture state, and the front seat supporting body and the rear seat supporting body form a seat surface in the sitting posture state; in the standing state, the seat back assembly moves upwards and forwards; the guide rod slides relatively along the guide groove so that the front seat support body synchronously rotates downwards relative to the rear seat support body to an inclined state.

Description

Multifunctional chair

Technical Field

The utility model relates to a seat field, in particular to multifunctional seat.

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 susceptible to fatigue due to heavy leg load; 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 are caused by insufficient cerebral blood supply, the whole body weight pressing on the bottom end of the vertebra and the like, so that the health is not favorable. Sedentary physical disadvantages there have been many studies and reports that a person standing for a long time wants to sit and stand. In the sedentary population, it seems that the office white collar 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 have the person's "sitting" and "standing" alternate.

There is a standing chair, in which the seat surface is divided into three parts, including a main support body serving as a main body support of the seat surface and connected to the chassis, and side support bodies symmetrically disposed at the left and right sides of the main support body, the side support bodies rotating with respect to the main support body, and the standing chair having a sitting posture state and a standing posture state by different positions reached by the rotation of the side support bodies; the drawbacks of such a design are: the effect of lifting the seat surface is realized only by turning over the side supporting body, so that the hip of the user can be supported in a standing posture state; however, when the seat surface is raised, the height of the backrest of the seat is fixed, which results in that the back of the user is not supported in a standing state, and the user is lack of safety. Moreover, for users with different heights, the seat surface is not lifted enough only by turning over the side supporting bodies, and the user needs to further adjust the lifting of the seat air rod to ensure that the seat surface reaches the height satisfied by the user; this results in a cumbersome operation requiring multiple adjustments.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a multifunctional chair; a first connecting rod and a second connecting rod are arranged between the seat back component and the base, so that a four-bar mechanism is formed, the seat back component can be adjusted to be lifted relative to the base, and a linkage mechanism is arranged between the front seat support and the four-bar mechanism; when the seat back component ascends, the front seat supporting body synchronously rotates downwards; when the seat is converted from the sitting posture state to the standing posture state, only the connecting rod mechanism needs to be controlled to deform, so that the seat back assembly rises; when the seat back assembly rises, the seat part area automatically and correspondingly changes, and can be adjusted in place at one time, so that the operation is very quick and convenient; and the seat back assembly is raised as a whole so that the back of the user is still supported in the standing position.

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

a multifunction seat, comprising:

a seat back assembly divided into a seat area and a back area; the seat region comprises a front seat support and a rear seat support; the front seat supporting body is rotationally connected with the rear seat supporting body, and the front seat supporting body can rotate downwards relative to the rear seat supporting body;

the connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the front end of the base, and the other end of the first connecting rod is hinged to the rear end of the seat back component; one end of the second connecting rod is hinged to the front end of the base, and the other end of the second connecting rod is hinged to the rear end of the seat back component; the hinged position of the first connecting rod and the base is positioned in front of the hinged position of the second connecting rod and the base; a four-bar linkage is formed among the first connecting bar, the second connecting bar, the base and the seat back component; the connecting rod mechanism deforms to enable the seat back component to be adjusted in a lifting mode relative to the base;

the linkage mechanism is arranged between the front seat support body and the four-bar mechanism and comprises a sliding seat arranged at the bottom of the front seat support body, a guide groove is arranged on the sliding seat, and a guide rod horizontally penetrating in the guide groove is correspondingly arranged on the first connecting rod or the base;

the seat has a sitting posture state and a standing posture state, the first connecting rod and the second connecting rod are approximately horizontal in the sitting posture state, and the front seat support body and the rear seat support body form a seat surface; in a standing state, the first connecting rod and the second connecting rod rotate forwards to drive the seat back assembly to move upwards and forwards; the guide rod slides relatively along the guide groove so that the front seat supporting body synchronously rotates downwards relative to the rear seat supporting body to an inclined state.

Preferably, the rear seat support comprises a standing position supporting part with the middle position extending forwards, and the front seat support is correspondingly provided with a groove with the outline matched with the standing position supporting part; and in a sitting posture state, the standing posture support part is embedded in the groove. In a sitting posture state, the standing supporting part is just embedded into the groove, and the front seat supporting body and the rear seat supporting body just form a seat surface which is not different from a conventional seat. In the standing position state, the front seat supporting body rotates downwards, so that the standing position supporting part is the main supporting surface at the moment.

Preferably, the front end of the base is provided with a first supporting rod and a second supporting rod which extend upwards and are spaced front and back; the front end of the first connecting rod is hinged at the upper end of the first support rod, and the front end of the second connecting rod is hinged at the upper end of the second connecting rod; and the first strut is longer than the second strut.

Preferably, the guide rod sequentially penetrates through the first support rod and the first connecting rod, and the guide rod is used as a rotating shaft between the first support rod and the first connecting rod. The guide arm can enough wear to establish in order to realize the linkage of front stall supporter in the guide slot, can also play dual role, design benefit as the axis of rotation of first connecting rod and first branch.

Preferably, in a sitting posture, the guide groove inclines towards the lower rear part from front to back, and the guide rod is positioned at the rear end of the guide groove; in the standing state, the guide groove inclines towards the upper rear part from front to back, and the guide rod is positioned at the front end of the guide groove. When the sitting posture state is converted into the standing posture state, the first connecting rod and the second connecting rod rotate forwards, and the seat back component moves upwards and forwards; the guide bar is confined within and moves along the guide slot such that the guide bar will exert a downward force on the front support to cause the front support to rotate downward relative to the rear support.

Preferably, a third supporting rod and a fourth supporting rod which extend downwards and are spaced front and back are arranged at the rear end of the seat back assembly; the rear end of the first connecting rod is hinged to the lower end of the third supporting rod, and the rear end of the second connecting rod is hinged to the lower end of the fourth supporting rod; and the fourth strut is longer than the third strut.

Preferably, a first rotating rod extending backward is arranged at the rear end of the front seat support, and a second rotating rod extending forward is arranged at the front end of the rear seat support; the first rotating rod is hinged with the second rotating rod. So that the front seat support can stably rotate relative to the rear seat support.

Preferably, the link mechanisms are respectively arranged on the left side and the right side between the base and the seat back assembly. The structure is more stable for seat back of the body subassembly can be stabilized smooth and easy relative base and carry out lift adjustment.

Preferably, the maximum angle of downward rotation of the front seat support with respect to the rear seat support is between 70-85 °. So that in a sitting posture state, the front seat supporting body inclines downwards and can be just leaned against the thigh of the user from the back so as to further support the user.

Preferably, the device also comprises a driving component for driving the link mechanism to deform; the driving component is an electric push rod or an air rod.

Preferably, the driving component is an electric push rod. The seat state conversion can be effectively controlled, and the seat can stay at any position.

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

firstly, the multifunctional seat of the utility model is provided with the first connecting rod and the second connecting rod between the seat back component and the base, thereby forming a four-bar linkage mechanism to enable the seat back component to be adjusted up and down relative to the base, and a linkage mechanism is arranged between the front seat supporting body and the four-bar linkage mechanism; so that when the seat back component ascends, the front seat supporting body synchronously rotates downwards; when the seat is converted from the sitting posture state to the standing posture state, only the connecting rod mechanism needs to be controlled to deform, so that the seat back assembly rises; when the seat back assembly rises, the seat part area automatically and correspondingly changes, and can be adjusted in place at one time, so that the operation is very quick and convenient; and the seat back assembly is raised as a whole so that the back of the user is still supported in the standing position.

Secondly, the rear seat support body comprises a standing position supporting part with the middle position extending forwards, and a groove with the outline matched with the standing position supporting part is correspondingly arranged on the front seat support body; in a sitting posture state, the standing posture support part is just embedded into the groove, and the front seat support body and the rear seat support body just form a seat surface which is not different from a conventional seat; in the standing state, the front seat supporting body rotates downwards, so that the standing supporting part is a main supporting surface at the moment; so that the seat area can be varied according to the sitting and standing position to adapt to the sitting of the user.

Moreover, the guide arm both worn to establish in order to realize the linkage effect of front stall supporter in the guide slot, can also play dual role, design benefit as the axis of rotation of first connecting rod and first branch.

In addition, the driving component adopts an electric push rod to drive the connecting rod mechanism to deform; the state conversion of the seat can be effectively controlled, the seat can be stopped at any position, and the operation is more labor-saving.

Drawings

Fig. 1 is a schematic perspective view of a sitting position of a seat according to an embodiment of the present invention;

fig. 2 is a side view of the present invention in a sitting position;

FIG. 3 is a diagram illustrating the connection between the seat back assembly and the seat base in the sitting position according to the embodiment of the present invention;

fig. 4 is a side view of the seat in the standing position according to the embodiment of the present invention;

FIG. 5 is a schematic perspective view of a seat back assembly in a standing position according to another embodiment of the present invention;

fig. 6 is a connecting structure diagram between the seat back assembly and the base in the standing position of the present invention.

The figures are numbered: a seat back assembly A; a base B; a front seat support 1; a rear seat support 2; a standing posture support part 2a; a first link 3; a second link 4; a link mechanism 5; a groove 6; a first strut 7; a second strut 8; a third strut 9; a fourth strut 10; a slide 11; a guide groove 12; a guide rod 13; a first rotating lever 14; a second rotating lever 15; a back support 16.

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:

as shown in fig. 1-6, the utility model provides a multifunctional chair, which comprises a seat back component a and a base B; the seat back assembly a comprises a seat region comprising a front seat support 1 and a rear seat support 2 and a back region comprising a back support 16; the front seat support 1 is rotatably connected to the rear seat support 2, and the front seat support 1 can rotate downward relative to the rear seat support 2. A connecting rod mechanism is arranged between the base B and the seat component A, and comprises a first connecting rod 3 and a second connecting rod 4; a four-bar linkage is formed among the first connecting bar 3, the second connecting bar 4, the base B and the seat back component A; the connecting rod mechanism deforms to enable the seat back component A to be capable of lifting and adjusting relative to the base B; a linkage mechanism 5 is arranged between the front seat support 1 and the four-bar linkage mechanism, and when the seat back component A ascends relative to the base B through the linkage mechanism 5, the front seat support 1 can be synchronously driven to rotate downwards; the multifunctional chair has a sitting posture state and a standing posture state, wherein in the sitting posture state, the first connecting rod 3 and the second connecting rod 4 are approximately horizontal, a sitting surface is formed between the front seat supporting body 1 and the rear seat supporting body 2, and the chair can be used for a user to sit normally. In the standing state, the deformation of the connecting rod mechanism is controlled to enable the seat back component A to ascend relative to the base B, and meanwhile, the front seat supporting body 1 is enabled to rotate downwards under the action of the linkage mechanism 5, and at the moment, the seat can meet the sitting requirement of a user in the standing state. When the seat back assembly A is lifted, the seat part area is correspondingly changed, and the seat back assembly A can be adjusted in place at one time, so that the operation is very quick and convenient; and the back support 16 is raised synchronously so that the user's back is still supported in the standing position.

Specifically, the method comprises the following steps: as shown in fig. 1 and 5, the rear seat support 2 includes a standing position support part 2a with a middle position protruding forward, and the standing position support part 2a is in a shape of a hanging ear, so that a user can sit comfortably in a standing position; a groove 6 with the outline matched with the standing position supporting part 2a is correspondingly arranged at the rear end of the front seat supporting body 1; as shown in fig. 1, in the sitting position, the standing position support part 2a is just embedded in the groove 6, and the front seat support 1 and the rear seat support 2 just form a seat surface, which is not different from the conventional seat. As shown in fig. 5, in the standing position, the front seat support 1 is rotated downward, so that the standing position support part 2a is the main support surface at this time, and the front seat support 1 is inclined just enough to support the thighs of the user.

As shown in fig. 2-6, two first supporting rods 7 and two second supporting rods 8 which are spaced and extend upwards are arranged at the front end of the base B; the first strut 7 is located forward of the second strut 8 and the length of the first strut 7 is longer than the length of the second strut 8. The rear end of the bottom of the seat back component B is provided with a third supporting rod 9 and a fourth supporting rod 10 which are arranged at intervals and extend downwards; the fourth strut 10 is located behind the third strut 9, and the length of the fourth strut 10 is longer than the length of the third strut 9. The front end of the first connecting rod 3 is hinged at the upper end of the first supporting rod 7, and the rear end is hinged at the lower end of the third supporting rod 9; the front end of the second connecting rod 4 is hinged at the upper end of the second supporting rod 8, and the rear end is hinged at the lower end of the fourth supporting rod 10. Then, the seat back assembly A can stably and smoothly carry out lifting adjustment relative to the base B through the deformation of a four-bar mechanism consisting of the first connecting bar 3, the second connecting bar 4, the seat back assembly A and the base B; when the chair is changed from the sitting posture state to the standing posture state, the first connecting rod 3 and the second connecting rod 4 rotate forwards relative to the base 1 simultaneously, so that the seat back component A is driven to move forwards and upwards. In addition, link mechanism set up the both sides between base B and seat back of the body subassembly A respectively for the lift of seat back of the body subassembly A is more stable.

As shown in fig. 2-4 and 6, the linkage mechanism 5 includes a sliding seat 11 disposed at the bottom of the front seat support 1 and extending downward, a guide groove 12 is disposed on the sliding seat 11, a horizontal guide rod 13 is disposed in the guide groove 12, and further: this guide arm 13 wears to establish in proper order on first branch 7 and first connecting rod 3, and guide arm 13 is as the axis of rotation of first branch 7 with first connecting rod 3, and first connecting rod 3 can rotate around the relative base of this guide arm 13. During the process that the first connecting rod 3 and the second connecting rod 4 rotate upwards, the guide rod 13 slides relatively in the guide groove 12, so that the front seat supporting body 1 and the connecting rod mechanism are driven to move synchronously; specifically, the method comprises the following steps: as shown in fig. 2, in the sitting posture, from front to back, the guide groove 12 is inclined towards the lower rear part, and the guide rod 13 is positioned at the rear end of the guide groove 12; when the sitting posture state is converted into the standing posture state, the first connecting rod 3 and the second connecting rod 4 rotate forwards, and the seat back assembly A moves upwards and forwards; the guide bar 13 is confined in the guide groove 12 and moves along the guide groove 13, so that the guide bar 13 will apply a downward force to the front seat support 1, causing the front seat support 1 to rotate downward relative to the rear seat support 2; as shown in fig. 4, in the sitting position, the guide groove 12 is inclined upward and rearward from the front, and the guide bar 13 is located at the front end of the guide groove 12. Then, the front seat supporting body 1 can be correspondingly linked along with the deformation of the connecting rod mechanism through the linkage mechanism 5, the seat surface can be automatically changed, a user does not need to adjust the seat surface, and the front seat supporting body is simple in operation and ingenious in design.

As shown in fig. 2 and 4, a first rotating lever 14 projecting backward is provided at the rear end of the front seat support 1, and a second rotating lever 15 projecting forward is provided at the front end of the rear seat support 2; the first rotating rod 14 is hinged with the second rotating rod 15, so that the structure is stable; in the embodiment, from the sitting posture state to the standing posture state, the maximum angle of downward rotation of the front seat support 1 relative to the rear seat support 2 is 80 °; so that the front seat supporting body 1 can be just attached to the thigh of the user from the back in a sitting posture state to further support the user. In addition, the seat further comprises a driving component (not shown) for driving the link mechanism to deform, the driving component is an electric push rod, one end of the electric push rod acts on the link mechanism, and the other end of the electric push rod is installed on the base B; then, the state conversion of the seat can be effectively controlled by controlling the electric push rod to stretch and retract, and the seat can stay at any position.

In conclusion, the multifunctional chair of the utility model can rapidly control the chair to be switched between the sitting posture state and the standing posture state by controlling the deformation of the link mechanism; the seat surface change and the lifting change of the seat are linked; when the seat back component A rises, the front seat supporting body 1 rotates downwards along with the seat back component A; the adjustment process does not need to be separately carried out, and the adjustment process can be carried out once, so that the use is more convenient. In addition, in the standing state, the whole seat back assembly A rises, so that in the standing state, the back support body 16 can still support the back of the user, and the use is more comfortable and reassuring.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (11)

1. A multifunction seat, characterized by comprising:

a seat back assembly divided into a seat region and a back region; the seat region comprises a front seat support and a rear seat support; the front seat supporting body is rotationally connected with the rear seat supporting body, and the front seat supporting body can rotate downwards relative to the rear seat supporting body;

the connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the front end of the base, and the other end of the first connecting rod is hinged to the rear end of the seat back component; one end of the second connecting rod is hinged to the front end of the base, and the other end of the second connecting rod is hinged to the rear end of the seat back component; the hinged position of the first connecting rod and the base is positioned in front of the hinged position of the second connecting rod and the base; a four-bar linkage is formed among the first connecting bar, the second connecting bar, the base and the seat back component; the connecting rod mechanism deforms to enable the seat back component to be adjusted in a lifting mode relative to the base;

the linkage mechanism is arranged between the front seat support body and the four-bar mechanism and comprises a sliding seat arranged at the bottom of the front seat support body, a guide groove is arranged on the sliding seat, and a guide rod horizontally penetrating in the guide groove is correspondingly arranged on the first connecting rod or the base;

the seat has a sitting posture state and a standing posture state, the first connecting rod and the second connecting rod are approximately horizontal in the sitting posture state, and the front seat support body and the rear seat support body form a seat surface; in the standing state, the first connecting rod and the second connecting rod rotate forwards to drive the seat back assembly to move upwards and forwards; the guide rod slides relatively along the guide groove so that the front seat supporting body synchronously rotates downwards relative to the rear seat supporting body to an inclined state.

2. The multifunction seat of claim 1, wherein: the rear seat support body comprises a standing position supporting part with the middle position extending forwards, and a groove with the outline matched with the standing position supporting part is correspondingly arranged on the front seat support body; and in a sitting posture state, the standing posture support part is embedded in the groove.

3. The multifunction seat of claim 1, wherein: the front end of the base is provided with a first supporting rod and a second supporting rod which extend upwards and are spaced front and back; the front end of the first connecting rod is hinged to the upper end of the first support rod, and the front end of the second connecting rod is hinged to the upper end of the second connecting rod; and the first strut is longer than the second strut.

4. The multifunction seat of claim 3, wherein: the guide rod is sequentially arranged on the first supporting rod and the first connecting rod in a penetrating mode, and the guide rod serves as a rotating shaft between the first supporting rod and the first connecting rod.

5. The multifunction seat of claim 1, wherein: in a sitting posture state, the guide groove inclines towards the lower rear part from front to back, and the guide rod is positioned at the rear end of the guide groove; in the standing state, the guide groove inclines towards the upper rear part from front to back, and the guide rod is positioned at the front end of the guide groove.

6. The multifunction seat of claim 1, wherein: the rear end of the seat back component is provided with a third supporting rod and a fourth supporting rod which extend downwards and are spaced front and back; the rear end of the first connecting rod is hinged to the lower end of the third supporting rod, and the rear end of the second connecting rod is hinged to the lower end of the fourth supporting rod; and the fourth strut is longer than the third strut.

7. The multifunction seat of claim 1, wherein: the rear end of the front seat support body is provided with a first rotating rod which extends out backward, and the front end of the rear seat support body is provided with a second rotating rod which extends out forward; the first rotating rod is hinged with the second rotating rod.

8. The multifunction seat of claim 1, wherein: the connecting rod mechanisms are respectively arranged on the left side and the right side between the base and the seat back component.

9. The multifunction seat of claim 1, wherein: the maximum angle of downward rotation of the front seat support body relative to the rear seat support body is between 70 and 85 degrees.

10. The multifunction seat of claim 1, wherein: the driving component is used for driving the link mechanism to deform; the driving component is an electric push rod or an air rod.

11. The multifunction seat of claim 10, wherein: the driving component is an electric push rod.

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