阅读说明：本技术 一种座椅变换机构及多用途座椅 (Seat changing mechanism and multipurpose seat ) 是由 何基 叶金 蒋小兵 于 2019-09-05 设计创作，主要内容包括：本发明公开了一种座椅变换机构及多用途座椅,包括底座,设置在底座上的滑轨组件,滑轨组件具有动轨及静轨,以及座支撑件,座支撑件分为第一座与第二座,第二座被配置为连接动轨且总是保持在大致水平状态,第一座相对于第二座铰接；还包括背支撑件,以及连杆。本发明首先提供了一种座椅变换机构,其具有两个状态：(1)平坐状态,像普通座椅一样,供人就坐办公。(2)站姿状态；第一座后端抬高,第一座前端向下翻折保持下垂,此时只有第二座呈现支撑人体臀部的状态；使用者可以呈站立状态倚靠在椅座最上方或呈跨越式骑在椅座最上方,符合人们的生理健康。本发明继而提供了一种多用途座椅,与上述座椅变换机构配合使用,坐站转换方便迅速。(the invention discloses a seat changing mechanism and a multipurpose seat, comprising a base, a slide rail assembly arranged on the base, a seat supporting piece and a seat body, wherein the slide rail assembly is provided with a movable rail and a static rail, the seat supporting piece is divided into a first seat and a second seat, the second seat is configured to be connected with the movable rail and always kept in a roughly horizontal state, and the first seat is hinged relative to the second seat; also includes a back support and a connecting rod. The present invention provides, first, a seat changing mechanism having two states: (1) the sitting state is like a common chair, and people can sit and work. (2) Standing posture state; the rear end of the first seat is raised, the front end of the first seat is turned downwards to keep drooping, and only the second seat is in a state of supporting the buttocks of a human body; the user can lean on the top of the chair seat in a standing state or ride on the top of the chair seat in a crossing manner, which accords with the physiological health of people. The invention further provides a multipurpose seat which is matched with the seat changing mechanism for use, and the seat changing mechanism is convenient and quick to sit and stand.)

1. A seat changing mechanism characterized by comprising:

A base configured to connect to a seat support assembly;

The sliding rail assembly is vertically arranged on the base and is provided with a movable rail and a fixed rail which are mutually matched in a sliding manner, wherein the fixed rail is fixedly connected with the base;

the seat supporting piece is arranged on the front side of the sliding rail component and is divided into a first seat and a second seat which are arranged front and back, the second seat is configured to be connected with the movable rail and always kept in a roughly horizontal state, and the first seat is hinged relative to the second seat;

A back support connected with the movable rail and moving up and down along with the movable rail;

one end of the connecting rod is hinged with the base, and the other end of the connecting rod is hinged with the first seat.

2. The seat changing mechanism according to claim 1, wherein: the base is supported above the ground through the seat support assembly, and the height of the base from the ground is 360-550 cm.

3. The seat changing mechanism according to claim 1, wherein: the seat support supporting component comprises a lifting air rod and supporting legs, and the upper end and the lower end of the lifting air rod are respectively in inserting fit with the base and the supporting legs.

4. The seat changing mechanism according to claim 1, wherein: the seat support supporting assembly comprises a lifting gas rod, supporting legs and a chassis, the chassis is provided with a seat body and a supporting plate, the supporting plate is connected to the upper end of the seat body, the upper end and the lower end of the lifting gas rod are respectively in plug-in fit with the seat body and the supporting legs, and the base is connected to the supporting plate.

5. The seat changing mechanism according to claim 3 or 4, wherein: the bottom of the supporting foot is provided with a roller.

6. the seat changing mechanism according to claim 1, wherein: the back support piece is arranged on the front side of the sliding rail assembly, and the back support piece and the sliding rail assembly are arranged in parallel.

7. the seat changing mechanism according to claim 1, wherein: the back support piece is arranged on the front side of the sliding rail assembly, a shielding object is further arranged on the back of the back support piece, the shielding object and the back support piece are fixed relatively, the sliding rail assembly is arranged between the shielding object and the back support piece, and the shielding object completely or partially shields the sliding rail assembly.

8. The seat changing mechanism according to claim 1, wherein: the fixed connection of the static rail and the base refers to that: the lower end of the static rail is connected with the base through a fastener, or the lower end of the static rail is welded and fixed with the base.

9. The seat changing mechanism according to claim 1, wherein: the movable rail and the static rail are fixed relatively, the locking device comprises a handle with a screw rod, a screw hole and a plurality of positioning holes which are longitudinally arranged, the screw hole is arranged on one of the movable rail or the static rail, the screw rod is arranged in the screw hole in a penetrating mode and is in threaded connection with the screw hole, and the positioning holes are arranged on the other of the movable rail or the static rail.

10. The seat changing mechanism according to claim 1, wherein: the movable rail and the static rail are kept relatively fixed through the locking device, the locking device comprises a bolt, a support lug and a plurality of positioning holes which are longitudinally arranged, the bolt is arranged on one of the movable rail or the static rail through the support lug and penetrates through a preset inserting hole in the movable rail or the static rail, and the positioning holes are arranged on the other of the movable rail or the static rail.

11. a multipurpose seat, characterized in that: comprising the seat changing mechanism of any one of claims 1-8 and a drive assembly configured to drive the movable rail to slide along the stationary rail.

12. The utility chair of claim 11, wherein: the driving component is any one of an air rod, a hydraulic rod or a motor.

13. The utility seat of claim 12, wherein: the driving assembly adopts an air rod or a hydraulic rod, one end of the driving assembly is connected with the back support piece or the movable rail, and the other end of the driving assembly is connected with the base or the static rail.

14. the utility seat of claim 12, wherein: the driving assembly adopts a motor, and the motor is a push rod motor or a linear motor.

15. the utility chair of claim 11, wherein: the movable rail and the static rail form an accommodating space therebetween, and the driving assembly is arranged in the accommodating space.

16. A seat changing mechanism characterized by comprising:

A base configured to connect to a seat support assembly;

The sliding rail assembly is vertically arranged on the base and is provided with a movable rail and a fixed rail which are mutually matched in a sliding way, wherein the fixed rail is fixedly connected with the base;

The seat supporting piece is arranged on the front side of the sliding rail component and is divided into a first seat and a second seat, the second seat is configured to be connected with the moving rail and always kept in a roughly horizontal state, an avoiding space is formed in the first seat, the second seat is selectively embedded into the avoiding space and is surrounded by the first seat, and the first seat is hinged relative to the moving rail;

A back support connected with the movable rail and moving up and down along with the movable rail;

One end of the connecting rod is hinged with the base, and the other end of the connecting rod is hinged with the first seat.

17. The seat changing mechanism of claim 16, wherein: the second seat is configured to be connected with the movable rail, and the second seat is characterized in that: a bracket extending forwards is fixedly arranged on the movable rail, and the second seat is connected to the bracket.

18. The seat changing mechanism of claim 17, wherein: the rear side of the first seat is hinged with the movable rail or the bracket.

19. the seat changing mechanism of claim 16, wherein: at least a front half of the second seat is configured to be an elongated shape that facilitates riding by a user.

20. The seat changing mechanism of claim 16, wherein: the first seat is of a frame structure, and the avoidance space is reserved in the middle of the first seat.

21. the seat changing mechanism according to claim 16 or 20, wherein: when the second seat is embedded into the avoiding space, the second seat and the first seat are positioned on the same plane beneficial to flat seating, and the second seat and the first seat form a finished seat supporting piece.

22. the seat changing mechanism of claim 16, wherein: the base is supported above the ground through the seat support assembly, and the height of the base from the ground is 360-550 cm.

23. The seat changing mechanism of claim 16, wherein: the seat support supporting component comprises a lifting air rod and supporting legs, and the upper end and the lower end of the lifting air rod are respectively in inserting fit with the base and the supporting legs.

24. the seat changing mechanism of claim 16, wherein: the seat support supporting assembly comprises a lifting gas rod, supporting legs and a chassis, the chassis is provided with a seat body and a supporting plate, the supporting plate is connected to the upper end of the seat body, the upper end and the lower end of the lifting gas rod are respectively in plug-in fit with the seat body and the supporting legs, and the base is connected to the supporting plate.

25. the seat changing mechanism of claim 16, wherein: the back support piece is arranged on the front side of the sliding rail assembly, and the back support piece and the sliding rail assembly are arranged in parallel or the sliding rail assembly is embedded into the back support piece.

26. the seat changing mechanism of claim 16, wherein: the back support piece is arranged on the front side of the sliding rail assembly, a shielding object is further arranged on the back of the back support piece, the shielding object and the back support piece are fixed relatively, the sliding rail assembly is arranged between the shielding object and the back support piece, and the shielding object completely or partially shields the sliding rail assembly.

27. the seat changing mechanism of claim 26, wherein: the shielding object is a cover shell, and the cover shell is fixedly connected with the back support piece.

28. The seat changing mechanism of claim 16, wherein: the movable rail and the static rail are fixed relatively, the locking device comprises a handle with a screw rod, a screw hole and a plurality of positioning holes which are longitudinally arranged, the screw hole is arranged on one of the movable rail or the static rail, the screw rod is arranged in the screw hole in a penetrating mode and is in threaded connection with the screw hole, and the positioning holes are arranged on the other of the movable rail or the static rail.

29. The seat changing mechanism of claim 16, wherein: the movable rail and the static rail are kept relatively fixed through the locking device, the locking device comprises a bolt, a support lug and a plurality of positioning holes which are longitudinally arranged, the bolt is arranged on one of the movable rail or the static rail through the support lug and penetrates through a preset inserting hole in the movable rail or the static rail, and the positioning holes are arranged on the other of the movable rail or the static rail.

30. A multipurpose seat, characterized in that: comprising the seat changing mechanism of any of claims 16-27 and a drive assembly configured to drive the movable rail to slide along the stationary rail.

31. the utility seat of claim 30, further comprising: the driving component is any one of an air rod, a hydraulic rod or a motor.

32. The utility seat of claim 31, further comprising: the driving assembly adopts an air rod or a hydraulic rod, one end of the driving assembly is connected with the back support piece or the movable rail, and the other end of the driving assembly is connected with the base or the static rail.

33. The utility seat of claim 31, further comprising: the driving assembly adopts a motor, and the motor is a push rod motor or a linear motor.

34. The utility seat of claim 30, further comprising: the movable rail and the static rail form an accommodating space therebetween, and the driving assembly is arranged in the accommodating space.

Technical Field

The invention relates to the field of seats, in particular to a seat changing mechanism and a multipurpose seat.

background

the chair 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.

Disclosure of Invention

the invention overcomes the defects in the prior art and provides a seat changing mechanism which is more flexible and more beautiful, and a user can adjust the following components according to the needs: or sitting or standing, thereby providing convenience for the alternate transformation of sitting and standing postures; more importantly, the chair is suitable for the chair with the chair back, and meets the requirement of a user for standing and working.

Furthermore, the invention also provides a multipurpose seat, which is matched with the seat changing mechanism for use, simplifies the structure of the working chair for sitting and standing and can meet the sitting and standing requirements of users.

The technical scheme of the invention is realized as follows:

A seat changing mechanism comprising:

A base configured to connect to a seat support assembly;

the sliding rail assembly is vertically arranged on the base and is provided with a movable rail and a fixed rail which are mutually matched in a sliding manner, wherein the fixed rail is fixedly connected with the base;

the seat supporting piece is arranged on the front side of the sliding rail component and is divided into a first seat and a second seat which are arranged front and back, the second seat is configured to be connected with the movable rail and always kept in a roughly horizontal state, and the first seat is hinged relative to the second seat;

A back support connected with the movable rail and moving up and down along with the movable rail;

One end of the connecting rod is hinged with the base, and the other end of the connecting rod is hinged with the first seat. The invention firstly provides a seat changing mechanism which has two states, namely a flat sitting state and a standing state; when the chair is in a flat sitting state, the first seat and the second seat are kept in a roughly horizontal state and are basically positioned on the same surface, and the first seat and the second seat form a complete seat support part for people to sit and work like a common chair; when the sitting state needs to be converted into the standing state, the movable rail is driven by external force to move upwards, so that the second seat and the back support piece of the seat support piece are lifted upwards along with the upward movement of the movable rail, the rear end of the first seat is lifted due to the action of the connecting rod of the first seat, the front end of the first seat is turned downwards to keep sagging, and only the second seat is in a state of supporting the hip of a human body; the two states can be freely switched only by sliding fit of the sliding rail component; furthermore, the sliding rail assembly is arranged behind the back support piece, so that the sliding rail assembly does not occupy extra space.

Preferably, the base is supported above the ground by the seat support assembly, and the height of the base from the ground is 360-550 cm. Therefore, the base has a reference height, and a user can normally sit and work in a flat sitting state.

Preferably, the seat support assembly comprises a lifting air rod and supporting legs, and the upper end and the lower end of the lifting air rod are respectively in inserting fit with the base and the supporting legs. The height of the base can be adjusted by controlling the lifting air rod, so that the height of the seat supporting piece in a flat sitting state is adjusted to meet the use requirements of people with different heights; and furthermore, when the movable rail slides upwards, the second seat is driven to move upwards, and if the height of the second seat does not meet the use requirement at the moment, the lifting air rod can be controlled in an auxiliary manner to adjust the height of the base so as to meet the requirement of supporting the height.

Preferably, the seat support assembly comprises a lifting gas rod, supporting legs and a chassis, the chassis is provided with a seat body and a supporting plate, the supporting plate is connected to the upper end of the seat body, the upper end and the lower end of the lifting gas rod are respectively in plug-in fit with the seat body and the supporting legs, and the base is connected to the supporting plate. As another form, the seat support assembly is further provided with a base plate, which can be a tiltable base plate, so that not only the initial height of the base plate can be adjusted normally, but also the tilting function is provided in a flat sitting state, and the sitting is more comfortable.

Preferably, the bottom of the supporting foot is provided with a roller. To facilitate movement to any position.

preferably, the back support is disposed at the front side of the sliding rail assembly, and the back support and the sliding rail assembly are disposed in parallel. The sliding rail component is shielded by the back support piece, and the appearance is hardly influenced.

Preferably, the back support member is arranged at the front side of the sliding rail assembly, the back surface of the back support member is further provided with a shielding object, the shielding object and the back support member are relatively fixed, the sliding rail assembly is arranged between the shielding object and the back support member, and the shielding object completely or partially shields the sliding rail assembly. By adopting the mode, especially in a flat sitting state, the sliding rail assembly is almost completely accommodated between the shielding object and the back supporting piece, and the sliding rail assembly and the back supporting piece are integrated into a whole, so that the whole body is more attractive; and in the standing state, the movable rail, the shielding object and the back supporting piece move upwards, and the lower half part of the slide rail part can be shielded.

Preferably, the fixed connection of the stationary rail and the base is as follows: the lower end of the static rail is connected with the base through a fastener, or the lower end of the static rail is welded and fixed with the base. The static rail can be detachably connected with the base and can be connected into a whole in a welding mode.

preferably, the movable rail and the static rail are kept relatively fixed by a locking device, the locking device comprises a handle with a screw rod, a screw hole and a plurality of positioning holes which are longitudinally arranged, the screw hole is arranged on one of the movable rail or the static rail, the screw rod is arranged in the screw hole in a penetrating way and is in threaded connection with the screw hole, and the positioning holes are arranged on the other of the movable rail or the static rail. When the movable rail is driven by external force such as manpower to slide upwards along the static rail, the movable rail is converted into a standing state, and at the moment, if the movable rail is lifted to a height suitable for a user, the sliding rail assembly needs to be locked so as to enable the second seat to play a normal supporting role; at this time, the screw rod can be inserted into the corresponding positioning hole by starting the locking device, namely rotating the handle.

Preferably, the movable rail and the static rail are kept relatively fixed by a locking device, the locking device comprises a bolt, a support lug and a plurality of positioning holes which are longitudinally arranged, the bolt is arranged on one of the movable rail or the static rail through the support lug and is arranged in a preset inserting hole in the movable rail or the static rail in a penetrating way, and the positioning holes are arranged on the other of the movable rail or the static rail. As another implementation, when the second seat is raised to a height suitable for the user, the sliding rail assembly needs to be locked so that the second seat can perform a normal supporting function; at the moment, the locking device is started, namely the bolt is stirred, so that the bolt moves along the support lug and is inserted into the corresponding positioning hole from the inserting hole, and the sliding rail assembly can be locked.

A multipurpose seat comprises the seat changing mechanism and a driving assembly, wherein the driving assembly is configured to drive a movable rail to slide along a static rail.

Preferably, the driving component is any one of an air rod, a hydraulic rod or a motor.

preferably, the driving assembly adopts an air rod or a hydraulic rod, one end of the driving assembly is connected with the back support member or the movable rail, and the other end of the driving assembly is connected with the base or the static rail. The air rod or the hydraulic rod can be opened or closed by a pull wire or a control rod, so that the air rod or the hydraulic rod can be extended or retracted.

Preferably, the driving assembly adopts a motor, and the motor is a push rod motor or a linear motor. The motor is adopted to control the movable rail to lift, the movement is smooth and reliable, and the movable rail can be conveniently controlled to stop at any desired position.

preferably, an accommodating space is formed between the movable rail and the stationary rail, and the driving assembly is arranged in the accommodating space. Therefore, the driving assembly is beneficial to hiding and containing, and the external space is saved.

a seat changing mechanism comprising:

A base configured to connect to a seat support assembly;

The sliding rail assembly is vertically arranged on the base and is provided with a movable rail and a fixed rail which are mutually matched in a sliding way, wherein the fixed rail is fixedly connected with the base;

The seat supporting piece is arranged on the front side of the sliding rail component and is divided into a first seat and a second seat, the second seat is configured to be connected with the moving rail and always kept in a roughly horizontal state, an avoiding space is formed in the first seat, the second seat is selectively embedded into the avoiding space and is surrounded by the first seat, and the first seat is hinged relative to the moving rail;

A back support connected with the movable rail and moving up and down along with the movable rail;

One end of the connecting rod is hinged with the base, and the other end of the connecting rod is hinged with the first seat. The invention also provides another type of seat changing mechanism which also has two states, namely a flat sitting state and a standing state; when the chair is in a flat sitting state, the first seat and the second seat are both kept in a roughly horizontal state and are basically positioned on the same surface, the second seat is embedded in the first seat and is surrounded by the first seat, and the first seat and the second seat form a complete seat support part for people to sit and work like a common chair; when the sitting state needs to be converted into the standing state, the movable rail is driven by external force to move upwards, so that the second seat and the back support piece of the seat support piece are lifted upwards along with the upward movement of the movable rail, the rear end of the first seat is lifted due to the action of the connecting rod of the first seat, the front end of the first seat is turned downwards to keep sagging, and only the second seat is in a state of supporting the hip of a human body; the two states can be freely switched only by sliding fit of the sliding rail component; furthermore, the sliding rail assembly is arranged behind the back support piece, so that no extra space is occupied; the second seat is surrounded by the first seat in the circumferential direction, but the second seat is not necessarily completely surrounded, and a half-surrounded hiccup method may be employed, that is, the front side and the left and right sides of the second seat are surrounded by the first seat; this may facilitate a different configuration of the second seat, more particularly an elongated configuration for riding, such as an elongated trapezoidal shape or a bicycle seat.

Preferably, the second seat is configured to be connected to the movable rail, which means that: a bracket extending forwards is fixedly arranged on the movable rail, and the second seat is connected to the bracket. The second seat is fixedly connected to the movable rail, and the follow-up rail moves up and down.

Preferably, the rear side of the first seat is hinged to the running rail or the bracket. Make first seat rear side and the rear side of second seat basically flush like this, also make first seat relative to the movable rail when the upset, the front side can turn over great angle down, and the user can not receive the hindrance of first seat when two legs stride and ride on the second seat.

Preferably, at least the front half of the second seat is configured in an elongated shape facilitating riding by a user. So that the second seat, after being raised, is beneficial for the user to ride on the second seat like a saddle.

Preferably, the first seat is of a frame structure, and the avoidance space is reserved in the middle of the first seat. The first seat is of a frame structure, so that the weight is reduced, the cushion is convenient to configure, and an avoiding space is reserved.

preferably, when the second seat is embedded into the avoiding space, the second seat and the first seat are on the same plane which is favorable for flat sitting, and the second seat and the first seat form a finished seat support. In the flat sitting state, the two are embedded into a whole to form a flat seat surface, which is beneficial for users to sit and work.

Preferably, the base is supported above the ground by the seat support assembly, and the height of the base from the ground is 360-550 cm. Therefore, the base has a reference height, and a user can normally sit and work in a flat sitting state.

Preferably, the seat support assembly comprises a lifting air rod and supporting legs, and the upper end and the lower end of the lifting air rod are respectively in inserting fit with the base and the supporting legs. The height of the base can be adjusted by controlling the lifting air rod, so that the height of the seat supporting piece in a flat sitting state is adjusted to meet the use requirements of people with different heights; and furthermore, when the movable rail slides upwards, the second seat is driven to move upwards, and if the height of the second seat does not meet the use requirement at the moment, the lifting air rod can be controlled in an auxiliary manner to adjust the height of the base so as to meet the requirement of supporting the height.

preferably, the seat support assembly comprises a lifting gas rod, supporting legs and a chassis, the chassis is provided with a seat body and a supporting plate, the supporting plate is connected to the upper end of the seat body, the upper end and the lower end of the lifting gas rod are respectively in plug-in fit with the seat body and the supporting legs, and the base is connected to the supporting plate. As another form, the seat support assembly is further provided with a base plate, which can be a tiltable base plate, so that not only the initial height of the base plate can be adjusted normally, but also the tilting function is provided in a flat sitting state, and the sitting is more comfortable.

preferably, the back support is disposed at the front side of the slide rail assembly, and the back support and the slide rail assembly are disposed in parallel or the slide rail assembly is embedded in the back support. The sliding rail component is shielded by the back support piece, and the appearance is hardly influenced.

Preferably, the back support member is arranged at the front side of the sliding rail assembly, the back surface of the back support member is further provided with a shielding object, the shielding object and the back support member are relatively fixed, the sliding rail assembly is arranged between the shielding object and the back support member, and the shielding object completely or partially shields the sliding rail assembly. By adopting the mode, especially in a flat sitting state, the sliding rail assembly is almost completely accommodated between the shielding object and the back supporting piece, and the sliding rail assembly and the back supporting piece are integrated into a whole, so that the whole body is more attractive; and in the standing state, the movable rail, the shielding object and the back supporting piece move upwards, and the lower half part of the slide rail part can be shielded.

Preferably, the shade is a cover, and the cover is fixedly connected with the back support.

preferably, the movable rail and the static rail are kept relatively fixed by a locking device, the locking device comprises a handle with a screw rod, a screw hole and a plurality of positioning holes which are longitudinally arranged, the screw hole is arranged on one of the movable rail or the static rail, the screw rod is arranged in the screw hole in a penetrating way and is in threaded connection with the screw hole, and the positioning holes are arranged on the other of the movable rail or the static rail. When the movable rail is driven by external force such as manpower to slide upwards along the static rail, the movable rail is converted into a standing state, and at the moment, if the movable rail is lifted to a height suitable for a user, the sliding rail assembly needs to be locked so as to enable the second seat to play a normal supporting role; at this time, the screw rod can be inserted into the corresponding positioning hole by starting the locking device, namely rotating the handle.

Preferably, the movable rail and the static rail are kept relatively fixed by a locking device, the locking device comprises a bolt, a support lug and a plurality of positioning holes which are longitudinally arranged, the bolt is arranged on one of the movable rail or the static rail through the support lug and is arranged in a preset inserting hole in the movable rail or the static rail in a penetrating way, and the positioning holes are arranged on the other of the movable rail or the static rail. As another implementation, when the second seat is raised to a height suitable for the user, the sliding rail assembly needs to be locked so that the second seat can perform a normal supporting function; at the moment, the locking device is started, namely the bolt is stirred, so that the bolt moves along the support lug and is inserted into the corresponding positioning hole from the inserting hole, and the sliding rail assembly can be locked.

A multipurpose seat comprises the seat changing mechanism and a driving assembly, wherein the driving assembly is configured to drive a movable rail to slide along a static rail.

Preferably, the driving component is any one of an air rod, a hydraulic rod or a motor.

preferably, the driving assembly adopts an air rod or a hydraulic rod, one end of the driving assembly is connected with the back support member or the movable rail, and the other end of the driving assembly is connected with the base or the static rail.

preferably, the driving assembly adopts a motor, and the motor is a push rod motor or a linear motor.

Preferably, an accommodating space is formed between the movable rail and the stationary rail, and the driving assembly is arranged in the accommodating space. Therefore, the driving assembly is beneficial to hiding and containing, and the external space is saved.

the design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:

The present invention first provides a seat changing mechanism having two states:

(1) A flat sitting state: when the chair is in a flat sitting state, the first seat and the second seat are kept in a roughly horizontal state and are basically positioned on the same plane, and the first seat and the second seat form a complete seat support part, so that people can sit and work like a common chair.

(2) standing posture state; when the sitting state needs to be converted into the standing state, the movable rail is driven by external force to move upwards, so that the second seat and the back support piece of the seat support piece are lifted upwards along with the upward movement of the movable rail, the rear end of the first seat is lifted, the front end of the first seat is turned downwards to keep drooping, and only the second seat is in a state of supporting the buttocks of a human body; the user can lean on the top of the chair seat in a standing state or ride on the top of the chair seat in a crossing manner; from the physiological and health aspects, the health-care tea is more consistent with the physiological health of people.

Secondly, the seat changing mechanism can be freely changed between two states and can be realized only by sliding fit of the slide rail assembly; compared with the prior art, the structure is simpler, the operation is simpler and more convenient, and the cost is lower.

Thirdly, the structure of the invention can be widely used for the traditional office chair without greatly modifying or adjusting the structure of the office chair, thereby not only meeting the requirements of users for working in a station, but also greatly reducing the application cost.

The invention further provides a multipurpose seat which is matched with the seat changing mechanism for use, is simple and convenient to operate, is convenient and quick to change a sitting position and a standing position, and can be widely applied to occasions such as offices, families, meeting rooms and the like.

drawings

FIG. 1 is a first perspective view of a multipurpose seat of embodiment 1 of the present invention;

FIG. 2 is a schematic perspective view of the multipurpose seat of embodiment 1 in a flat sitting position with seat supports hidden;

FIG. 3 is a second perspective view of the multipurpose seat of embodiment 1 of the present invention in a flat sitting position;

FIG. 4 is a third perspective view of the multipurpose seat of the embodiment 1 of the present invention in a flat sitting position;

FIG. 5 is a first perspective view of the multipurpose seat of embodiment 1 in a standing position;

FIG. 6 is a second perspective view of the multipurpose seat of embodiment 1 in a standing position;

FIG. 7 is a schematic perspective view of the multipurpose seat of embodiment 1 in a standing position with the seat supports hidden;

FIG. 8 is a first perspective view of a multipurpose seat in a flat-seated position with a second seat in the shape of a bicycle seat according to embodiment 2 of the present invention;

FIG. 9 is a second perspective view of the multipurpose seat of embodiment 2 of the present invention, wherein the second seat is a bicycle seat shape;

FIG. 10 is a first perspective view of the multipurpose seat of the embodiment 2 of the present invention, wherein the second seat is in the shape of a bicycle seat;

FIG. 11 is a second perspective view of the multipurpose seat of embodiment 2 of the present invention, wherein the second seat is in the shape of a bicycle seat;

FIG. 12 is a first perspective view of the multipurpose seat of the invention in the flat-seated position with the second seat being oval in shape according to embodiment 2;

FIG. 13 is a second perspective view of the multipurpose seat of the invention in embodiment 2 with the second seat being an oval;

FIG. 14 is a third perspective view of the multipurpose seat of the invention in the flat-seated state in the embodiment 2, in which the second seat is oval;

FIG. 15 is a first perspective view of the multipurpose seat of the invention in the standing posture with the second seat having an oval shape according to embodiment 2;

FIG. 16 is a second perspective view of the multipurpose seat of the invention in the standing posture with the second seat having an oval shape in embodiment 2;

FIG. 17 is a first perspective view of a utility seat of an elongated trapezoidal shape as a second seat in the embodiment 2 of the present invention;

FIG. 18 is a second perspective view of the multipurpose seat of embodiment 2 of the invention in which the second seat has an elongated trapezoidal shape in a flat-seated state;

FIG. 19 is a first perspective view of a utility seat having a second elongated trapezoidal shape in the standing posture in accordance with the present invention as set forth in embodiment 2;

fig. 20 is a side view of the seat changing mechanism in embodiments 1, 2, 3, and 4 of the present invention in a flat sitting state;

fig. 21 is a side view of the seat changing mechanism in embodiments 1, 2, 3, and 4 of the present invention in a standing position;

fig. 22 is a side view of the seat changing mechanism of the present invention in embodiments 1, 2, 3, and 4, which is switched between the flat-sitting state and the standing state;

FIG. 23 is a side view of the seat changing mechanism of embodiment 2 of the present invention in a flat sitting position with the seat support assembly 1 added to the chassis;

FIG. 24 is a schematic plan view of the sliding rail assembly of the embodiment 1 of the present invention when the shelter is in the flat-seated position;

FIG. 25 is a schematic plan view showing a push rod motor in accordance with embodiment 3 of the present invention;

FIG. 26 is a schematic plan view showing the movable and stationary rails having dovetail shapes according to the present invention in embodiment 1;

FIG. 27 is a schematic plan view showing the movable and stationary rails having T-shaped configurations according to embodiment 1 of the present invention;

FIG. 28 is a schematic plan view showing the structure of a slider combined with a guide rail according to embodiment 1 of the present invention;

Fig. 29 is a schematic plan view of the structure in which the slider and the guide rail are respectively disposed on the movable rail and the stationary rail in embodiment 1 of the present invention;

FIG. 30 is a partial schematic perspective view of a locking device using handle control according to the present invention in embodiment 2;

FIG. 31 is a first plan view showing a first lock mechanism using a latch control according to embodiment 4 of the present invention;

fig. 32 is a second plan view of the locking device using the latch control according to embodiment 4 of the present invention.

The figures are numbered:

A seat support assembly 1; a lifting air rod 2; supporting legs 3; a roller 4; a base 5; a slide rail assembly 6; a movable rail 7; a slider 71; a flange 78; a stationary rail 8; a guide rail 81; a seat support 9; a first seat 10; a second seat 11; a back support 12; a shade 13; a connecting rod 14; a drive assembly 15; an accommodating space 16; an avoidance space 20; a bracket 21; a chassis 30; a base body 31; a support plate 32; a screw 33; a handle 34; a screw hole 35; the positioning holes 36; a pull rod 37; the cross bar 37 a; a spring 38; a rotating shaft 39; a motor 40; a sliding rail 41; a slide block 42; a motor base 43; a latch 50; a lug 51; a plug hole 52.

Detailed Description

in order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. 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 than one 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 terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations or specific explanations of the present invention.