Seat

Abstract

The utility model discloses a seat which comprises a cushion assembly, a base assembly, a lifting mechanism and a driving mechanism, and the cushion assembly comprises a cushion plate; the base assembly comprises a base plate; the lifting mechanism comprises two pushing parts which are arranged in a spaced mode in the front-back direction, each pushing part comprises a pushing plate and at least two pushing rods which are arranged in parallel in a spaced mode in the left-right direction, the lower ends of the pushing rods are fixedly connected to the upper end of the pushing plate, included angles are formed between the pushing rods and the pushing plate, and the upper ends of the pushing rods are rotationally connected with the cushion plate; the lower ends of the pushing plates are rotationally connected with the base plate, the two pushing plates are arranged in parallel in the front-back direction, and the cushion plate and the base plate are arranged in parallel; the driving mechanism is used for driving the pushing piece to move. According to the seat disclosed by the utility model, the pushing piece comprises the plurality of pushing rods and the plurality of pushing plates which are arranged at the included angles, so that the stability of the cushion assembly during lifting can be improved, the structural strength of the pushing piece can be improved, and the pushing piece is more stable when supporting the cushion assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair technical field especially is involved in a kind of chair. BACKGROUND

[0002] With the improvement of people's living standards, the height of chair is generally adjustable, but lifting chair, generally, multiple X-shaped connecting rods are arranged between chair frame and wheel frame as the design of lifting mechanism, or a single support rod is used to lift the chair, which has poor stability when the chair is lifted, and is prone to tilt, especially when the user bends to pick up objects on the ground, which is extremely inconvenient and prone to accidental falling. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a chair, a driving mechanism can drive the movement of a pushing member to adjust the height of a cushion assembly; the pushing member includes multiple pushing rods and a pushing plate arranged at an angle, which not only increases the stability of the cushion assembly during lifting, but also improves the structural strength of the pushing member itself, making the pushing member more stable when supporting the cushion assembly.

[0004] According to the chair of the utility model embodiment, the chair includes: a cushion assembly, the cushion assembly includes a cushion plate; a base assembly, the base assembly includes a base plate; a lifting mechanism, the lifting mechanism includes: a pushing member, the pushing member is arranged at intervals in the front-back direction, each pushing member includes: a pushing plate and at least two pushing rods, multiple pushing rods are arranged in parallel at intervals in the left-right direction, the lower ends of multiple pushing rods are fixedly connected to the upper end of the pushing plate and arranged at an angle with the pushing plate, the upper end of the pushing rod is rotatably connected to the cushion plate, the lower end of the pushing plate is rotatably connected to the base plate, two pushing plates are arranged in parallel in the front-back direction, and the cushion plate and the base plate are arranged in parallel; a driving mechanism, the driving mechanism is rotatably connected to one of the pushing members and used to drive the movement of the pushing member.

[0005] According to the chair of the utility model embodiment, the driving mechanism can drive the movement of the pushing member to adjust the height of the cushion assembly; the pushing member includes multiple pushing rods and a pushing plate arranged at an angle, which not only increases the stability of the cushion assembly during lifting, but also improves the structural strength of the pushing member itself, making the pushing member more stable when supporting the cushion assembly.

[0006] According to some embodiments of the utility model, the lifting mechanism further includes: a connecting plate, the corners between the pushing plate and the pushing rod are first corners, the connecting plate is rotatably connected between four first corners, wherein the connecting plate, the cushion plate and the base plate are arranged in parallel.

[0007] According to some embodiments of the present application, in the up-down direction, the length of the pushing plate is greater than the length of the pushing rod.

[0008] According to some embodiments of the present application, the cushion assembly further comprises a first fixed plate connected to the lower side of the cushion plate, and the upper end of the pushing rod is rotationally connected to the first fixed plate.

[0009] According to some embodiments of the present application, the base assembly further comprises a fixed support connected to the upper side of the base plate, and the lower end of the pushing plate is rotationally connected to the fixed support.

[0010] According to some embodiments of the present application, the fixed support comprises a second fixed plate and two extension plates connected above the second fixed plate, the two extension plates are respectively connected to the front and rear ends of the second fixed plate, and the lower end of the pushing plate is rotationally connected to the extension plate.

[0011] According to some embodiments of the present application, the driving mechanism comprises a driving motor and a telescopic rod, the telescopic rod is connected between the driving motor and the pushing piece, and the driving motor is adapted to drive the telescopic rod to extend and retract.

[0012] According to some embodiments of the present application, one side of the pushing plate towards the telescopic rod is provided with two connecting branch plates, the two connecting branch plates are spaced apart in the left-right direction, and the telescopic rod is rotationally connected between the two connecting branch plates.

[0013] According to some embodiments of the present application, the pushing rod extends towards the pushing plate, and the driving mechanism is arranged on the side away from the pushing plate.

[0014] According to some embodiments of the present application, the pushing piece is an integral piece.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a perspective view of a seat according to some embodiments of the present application;

[0018] Figure 2 is Figure 1 a side view of the seat in FIG.

[0019] REFERENCE NUMERALS

[0020] 100, seat;

[0021] 10, cushion assembly; 11, cushion plate; 12, first fixed plate;

[0022] 20, base assembly; 21, base plate; 22, fixed support; 221, second fixed plate; 222, extension plate;

[0023] 30, lifting mechanism; 31, pushing piece; 311, pushing plate; 3111, third connecting hole; 312, pushing rod; 3121, second connecting hole; 313, connecting support plate; 3131, fourth connecting hole; 314, first corner; 3141, first connecting hole; 32, connecting plate;

[0024] 40, driving mechanism; 41, driving motor; 42, telescopic rod. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it is understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mount", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction relationship of two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.

[0028] Reference is made below Figures 1-2 The seat 100 according to the embodiments of the utility model is described.

[0029] According to the seat 100 of the embodiments of the utility model, the seat 100 includes a cushion assembly 10, a base assembly 20, a lifting mechanism 30 and a driving mechanism 40, the cushion assembly 10 includes a cushion plate 11, and a cushion can be arranged above the cushion plate 11;The base assembly 20 includes a base plate 21, and a roller can be arranged below the base plate 21, facilitating the movement of the seat 100.The lifting mechanism 30 is arranged between the cushion assembly 10 and the base assembly 20, and the driving mechanism 40 is used to drive the cushion assembly 10 to rise or fall, and is used to adjust the height of the cushion assembly 10, so as to improve the comfort of the user sitting on the seat 100.The driving mechanism 40 can be an electric part, and the driving mechanism 40 can also be connected with an APP software program, and the driving mechanism 40 is controlled by the APP to electrically drive the lifting mechanism 30 to rise and fall, providing convenience for the user.

[0030] When the user sits on the seat 100, the front of the seat 100 is the direction of the user's face, the back of the seat 100 is the user's back, the up-down direction of the seat 100 is the user's up-down direction, and the left-right direction of the seat 100 is the user's left-right direction.

[0031] The lifting mechanism 30 includes a pushing piece 31, the pushing piece 31 is arranged at intervals in the front-rear direction, each pushing piece 31 includes a pushing plate 311 and at least two pushing rods 312, a plurality of pushing rods 312 are arranged at intervals in the left-right direction, and the plurality of pushing rods 312 are arranged in parallel.

[0032] The lower ends of the plurality of push rods 312 are fixedly connected to the upper end of the push plate 311, and the plurality of push rods 312 are arranged at an angle with the push plate 311, and the angle between the plurality of push rods 312 and the push plate 311 can be an obtuse angle, so that the push rod 312 extends upward. The cushion plate 11 and the base plate 21 are arranged in parallel, the two push plates 311 are arranged in parallel along the front-rear direction, and the two pushers 31 correspondingly arranged in parallel along the front-rear direction are the push rods 312, so that the two pushers 31, the cushion plate 11 and the base plate 21 are constructed as a parallelogram structure. Since the upper end of the push rod 312 is rotatably connected to the cushion plate 11, the lower end of the push plate 311 is rotatably connected to the base plate 21, the two pushers 31, the cushion plate 11 and the base plate 21 constitute a four-bar linkage mechanism, and the driving mechanism 40 is rotatably connected to one of the pushers 31. When the driving mechanism 40 is active, the driving mechanism 40 can drive the pusher 31 to move, and the angle between the push plate 311 and the base plate 21 is changed to adjust the height of the cushion assembly 10. When the angle between the push plate 311 and the base plate 21 is a right angle, the cushion assembly 10 can be raised to the highest position, and when the push plate 311 is parallel to the base plate 21, the cushion assembly 10 can be lowered to the lowest position.

[0033] By setting the lifting mechanism 30 as a four-bar linkage mechanism, the stability of the cushion assembly 10 during lifting can be improved, and the situation that the cushion assembly 10 is not stable during lifting can be avoided. In addition, by setting the pusher 31 as the push plate 311 and the push rod 312 arranged at an angle, the structural strength of the pusher 31 itself can be improved, so that the pusher 31 is more stable when supporting the cushion assembly 10.

[0034] According to the seat 100 of the embodiment of the utility model, the seat 100 includes the lifting mechanism 30, the lifting mechanism 30 includes two pushers 31, the upper and lower ends of the pusher 31 are rotatably connected between the cushion plate 11 and the base plate 21, the lifting mechanism 30 includes the pusher 31 spaced apart along the front-rear direction, the two pushers 31, the cushion plate 11 and the base plate 21 constitute a four-bar linkage mechanism, and the driving mechanism 40 can drive the pusher 31 to move to adjust the height of the cushion assembly 10. The pusher 31 includes a plurality of push rods 312 and a push plate 311 arranged at an angle, which can not only improve the stability of the cushion assembly 10 during lifting, but also improve the structural strength of the pusher 31 itself, so that the pusher 31 is more stable when supporting the cushion assembly 10.

[0035] According to some embodiments of the utility model, refer to Figures 1-2, the lifting mechanism 30 further includes a connecting plate 32. The corner between the pushing plate 311 and the pushing rod 312 is the first corner 314. Each pushing member 31 includes two pushing rods 312. Among them, two first corners 314 spaced apart in the left - right direction are formed between one pushing plate 311 and the two pushing rods 312, and two first corners 314 spaced apart in the left - right direction are formed between the other pushing plate 311 and the two pushing rods 312. That is, the lifting mechanism 30 has four first corners 314, and the connecting lines between the four first corners 314 form a rectangle. The connecting plate 32 is rotatably connected between the four first corners 314. Among them, the connecting plate 32, the seat plate 11, and the base plate 21 are arranged in parallel. The connecting plate 32 is used to strengthen the strength between the middle parts of the two pushing members 31, and further increase the stability when the two pushing members 31 move.

[0036] In a specific example, the pushing plate 311 is a "worker" - shaped plate. The two "-" of the "worker" - shape are respectively connected to the two pushing rods 312. At the two first corners 314 of one pushing member 31, two first connection holes 3141 arranged oppositely in the left - right direction are formed. One end of the connecting plate 32 close to one pushing member 31 has a first through - hole opposite to the first connection hole 3141. A pin shaft can be inserted into the first connection hole 3141 and the first through - hole so that the connecting plate 32 can be rotatably connected to one pushing member 31; at the two first corners 314 of the other pushing member 31, two first connection holes 3141 arranged oppositely in the left - right direction are formed. One end of the connecting plate 32 close to the other pushing member 3 has a first through - hole opposite to the first connection hole 3141. A pin shaft can be inserted into the first connection hole 3141 and the first through - hole so that the connecting plate 32 can be rotatably connected to the other pushing member 31.

[0037] When the pushing member 31 moves, when the connecting plate 32 abuts against the "-" of the pushing plate 311, the connecting plate 32 restricts the movement track of the pushing plate 311, and the pushing member 31 can no longer move along the previous movement track. At this time, the seat cushion assembly 10 can be raised to the highest position or lowered to the lowest position.

[0038] According to some embodiments of the present invention, referring to Figures 1-2 , in the up - down direction, the length of the pushing plate 311 is greater than the length of the pushing rod 312. The pushing plate 311 plays a main supporting role, and the pushing plate 311 is a plate - body structure with higher self - strength. The length of the pushing plate 311 being greater than the length of the pushing rod 312 can further facilitate the support of the pushing member 31 for the seat cushion assembly 10.

[0039] According to some embodiments of the present invention, referring to Figures 1-2The seat cushion assembly 10 also includes a first fixing plate 12, which is connected to the lower side of the seat cushion plate 11. The upper end of the push rod 312 is rotatably connected to the first fixing plate 12, and the upper end of the push rod 312 is rotatably connected to the seat cushion assembly 10 through the first fixing plate 12. The front end of the first fixing plate 12 is located between two adjacent push rods 312, and the rear end is located between two other adjacent push rods 312, which facilitates the connection between the push rods 312 and the seat cushion assembly 10.

[0040] In a specific example, each push rod 312 has a second connecting hole 3121 at its upper end, and the first fixing plate 12 has a second through hole opposite to the second connecting hole 3121. A pin is inserted between the two second connecting holes 3121 and the second through hole at the front end so that the two push rods at the front end can be rotatably connected relative to the first fixing plate 12. Another pin is inserted between the two second connecting holes 3121 and the second through hole at the rear end so that the two push rods at the rear end can be rotatably connected relative to the first fixing plate 12.

[0041] According to some embodiments of this utility model, refer to Figures 1-2 The base assembly 20 also includes a fixed bracket 22, which is connected to the upper side of the base plate 21. The lower ends of the push plate 311 are rotatably connected to the fixed bracket 22. The push plate 311 is an "I"-shaped plate, and the lower ends of the two "-" shapes are connected to the fixed bracket 22, which facilitates the connection between the push plate 311 and the base assembly 20.

[0042] According to some embodiments of this utility model, refer to Figures 1-2 The fixed bracket 22 includes a second fixed plate 221 and two extension plates 222. The two extension plates 222 are connected above the second fixed plate 221 and are respectively connected to the front and rear ends of the second fixed plate 221. The lower end of the push plate 311 is rotatably connected to the extension plates 222. The two extension plates 222 can increase the height of the seat cushion assembly 10 in the vertical direction. When the lifting mechanism 30 is lowered to the lowest position, the seat cushion assembly 10 still has a certain height.

[0043] In a specific example, the push plate 311 is an "I"-shaped plate. The lower ends of the two "-" marks of the "I" shape are connected to the extension plate 222. The lower ends of the two "-" marks of the push plate 311 have a third connecting hole 3111. The upper end of the extension plate 222 has a third through hole opposite to the third connecting hole 3111. A pin is inserted between the two third connecting holes 3111 and the third through hole at the front end so that the push plate 311 at the front end can be rotatably connected to the extension plate 222 at the front end. Another pin is inserted between the two third connecting holes 3111 and the third through hole at the rear end so that the two push plates 311 at the rear end can be rotatably connected to the extension plate 222 at the rear end.

[0044] According to some embodiments of this utility model, refer to Figures 1-2 The drive mechanism 40 includes a drive motor 41 and a telescopic rod 42. The telescopic rod 42 is connected between the drive motor 41 and the pusher 31. The drive motor 41 is adapted to drive the telescopic rod 42 to extend and retract. When the telescopic rod 42 moves toward the pusher 31, the telescopic rod 42 pushes the pusher 31 to move, thereby raising the height of the lifting mechanism 30 and thus raising the height of the seat cushion assembly 10. When the telescopic rod 42 moves toward the drive motor 41, the telescopic rod 42 pulls the pusher 31 to move, thereby lowering the height of the lifting mechanism 30 and thus lowering the height of the seat cushion assembly 10.

[0045] The telescopic rod 42 is extended and retracted by the drive motor 41, which automatically drives the lifting mechanism 30 to rise or fall, freeing the user's hands and providing convenience.

[0046] According to some embodiments of this utility model, refer to Figures 1-2 The push plate 311 has two connecting support plates 313 on the side facing the telescopic rod 42. The two connecting support plates 313 are spaced apart in the left and right direction. The telescopic rod 42 is rotatably connected between the two connecting support plates 313, so that when the telescopic rod 42 pushes the pusher 31 to move, the angle between the telescopic rod 42 and the push plate 311 can be changed.

[0047] For example, the two connecting support plates 313 have a fourth connecting hole 3131 arranged opposite to each other, and the telescopic rod 42 has a fourth through hole at one end near the pusher 31. The fourth through hole and the fourth connecting hole 3131 are arranged opposite to each other, and a pin is inserted through the fourth connecting hole 3131 and the fourth through hole so that the telescopic rod 42 can be rotatably connected to the pusher plate 311.

[0048] According to some embodiments of this utility model, refer to Figures 1-2The driving mechanism 40 is arranged on the side away from the pushing plate 311, so that the driving mechanism 40 can be supported on the side of the pushing plate 311 away from the pushing rod 312, the partial force of the seat cushion assembly 10 on the pushing plate 311 can be decomposed, so that the overall structure of the seat 100 is more stable.

[0049] According to some embodiments of the present application, refer to Figures 1-2 The pushing member 31 is an integral forming member, so that the processing technology of the pushing member 31 is simple, and the connecting point between the pushing rod 312 and the pushing plate 311 can be avoided, and the structural strength of the pushing member 31 is further improved.

[0050] In the description of the present application, the description of the terms "some embodiments", "optionally", "further", or "some examples" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A seat, characterized in that, The utility model relates to a seat cushion and base assembly, comprising: a seat cushion assembly comprising a seat cushion plate; a base assembly comprising a base plate; a lifting mechanism comprising two pushers spaced apart in the front-rear direction, each pusher comprising a pusher plate and at least two pusher rods spaced apart in the left-right direction and parallel to each other, the lower ends of the pusher rods being fixedly connected to the upper end of the pusher plate at an angle thereto, the upper ends of the pusher rods being rotatably connected to the seat cushion plate, the lower ends of the pusher plate being rotatably connected to the base plate, the two pusher plates being parallel to each other in the front-rear direction, and the seat cushion plate and the base plate being parallel to each other; a drive mechanism rotatably connected to one of the pushers for driving the pusher to move.

2. The seat of claim 1, wherein The lifting mechanism further comprises a connecting plate rotatably connected between four first corners between the pusher plates and the pusher rods, wherein the connecting plate, the seat cushion plate and the base plate are parallel to each other.

3. The seat of claim 1, wherein In the up-down direction, the length of the pusher plate is greater than the length of the pusher rod.

4. The seat of claim 1, wherein The seat cushion assembly further comprises a first fixed plate connected to the lower side of the seat cushion plate, and the upper end of the pusher rod is rotatably connected to the first fixed plate.

5. The seat of claim 1, wherein The base assembly further comprises a fixed support connected to the upper side of the base plate, and the lower end of the pusher plate is rotatably connected to the fixed support.

6. The seat of claim 5, wherein, The fixed support comprises a second fixed plate and two extension plates connected above the second fixed plate, the two extension plates being connected to the front and rear ends of the second fixed plate respectively, and the lower end of the pusher plate is rotatably connected to the extension plate.

7. The seat of claim 1, wherein The drive mechanism comprises a drive motor and an extension rod connected between the drive motor and the pusher, and the drive motor is adapted to drive the extension rod to extend and retract.

8. The seat of claim 7, wherein, The side of the pusher plate facing the extension rod is provided with two connecting plates spaced apart in the left-right direction, and the extension rod is rotatably connected between the two connecting plates.

9. The seat of claim 1, wherein, The pusher rod extends towards the pusher plate, and the drive mechanism is arranged on the side away from the pusher plate.

10. The seat of any of claims 1-9, wherein, The pusher is an integral part.

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