CN213282227U

CN213282227U - Assembled lifting chair

Info

Publication number: CN213282227U
Application number: CN202021526486.XU
Authority: CN
Inventors: 秦昶亮; 贾琪
Original assignee: Xuzhou Lianghui Furniture Co ltd
Current assignee: Xuzhou Lianghui Furniture Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-05-28
Anticipated expiration: 2030-07-28

Abstract

The application relates to an assembled lift chair, it includes back, seat and support frame, seat and back all set up on the support frame and with support frame fixed connection, its characterized in that: the support frame comprises a left foot and a right foot which are respectively arranged at two opposite sides of the lower end of the seat plate; the lower end of the seat plate is also provided with a pair of seat plate brackets which are respectively connected with the left foot and the right foot; the side, close to the seat plate, of the left foot and the side, close to the seat plate, of the right foot are provided with a plurality of first mounting holes towards the inner side of the chair, the first mounting holes are vertically and uniformly arranged, and the seat plate support is in adjustable connection with the left foot and the right foot through the first mounting holes; and/or a plurality of second mounting holes are formed in the seat support towards one surface of the left foot and the right foot, the second mounting holes are vertically and uniformly arranged, and the seat support is adjustably connected with the left foot and the right foot through the second mounting holes. This application has the effect of adjustable seat height.

Description

Assembled lifting chair

Technical Field

The application relates to the field of daily furniture, in particular to an assembled lifting chair.

Background

The chair is a daily-life furniture, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion, and some chairs are not seats alone and are endowed with more technologies, so that the chairs are more convenient for human beings. At present, chairs in the market are various in types, and have various characteristics regardless of structures, colors and functions.

The prior chair, such as the Chinese utility model patent with the publication number of CN204862107U, discloses a chair with an improved structure, wherein a chair support frame comprises a cushion support frame and a backrest support frame, a chair cushion is arranged on the upper surface of the cushion support frame, and a chair backrest is arranged on the front surface of the upper end part of the backrest support frame; the upper end part of the backrest support frame is provided with a movable support bedplate, the fixed end part of the movable support bedplate is hinged at the upper end part of the backrest support frame through a pivot, the rear surface of the upper end part of the backrest support frame is provided with a receiving groove, and when the movable support bedplate is not in use, the movable support bedplate is embedded into the receiving groove; when the movable supporting bedplate is in a using state, the free end part of the movable supporting bedplate horizontally extends to the front end side of the backrest supporting frame. When the digital equipment is in work, a user can select to operate the digital equipment in a standing posture, so that the physical fatigue can be effectively relieved, the efficiency can be improved, and cervical spondylosis or other body discomfort caused by keeping a sitting posture for a long time can be effectively prevented.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the height of the chair with the improved structure is generally fixedly designed, people with different heights are required to adjust the self sitting posture all the time to adapt to the height of the chair, particularly for children, the height can also be greatly changed along with the increase of the age, if the chair is obviously unreasonable, the user can buy the chair adaptive to the height, the cost is increased, and the resource waste can be caused.

SUMMERY OF THE UTILITY MODEL

In order to enable the height adaptation of chair to child's height change, this application provides an assembled lift chair.

The application provides an assembled lift chair adopts following technical scheme:

an assembled lifting chair comprises a backrest, a seat plate and a support frame, wherein the seat plate and the backrest are respectively provided with

The left leg and the right leg are respectively arranged on two opposite sides of the lower end of the seat plate; the lower end of the seat plate is also provided with a pair of seat plate brackets which are respectively connected with the left foot and the right foot; the side, close to the seat plate, of the left foot and the side, close to the seat plate, of the right foot are provided with a plurality of first mounting holes towards the inner side of the chair, the first mounting holes are vertically and uniformly arranged, and the seat plate support is in adjustable connection with the left foot and the right foot through the first mounting holes; and/or a plurality of second mounting holes are formed in the seat support towards one surface of the left foot and the right foot, the second mounting holes are vertically and uniformly arranged, and the seat support is adjustably connected with the left foot and the right foot through the second mounting holes.

Through adopting above-mentioned technical scheme, set up a pair of seat support at the seat lower extreme, be connected with left side foot and right side foot respectively, set up the vertical first mounting hole of arranging of a plurality of at left side foot and right side foot, a fixed orifices on the seat support can realize being connected of seat support and left side foot and right side foot with the hole butt of an arbitrary height of first mounting hole and through interior hexagonal screw rod according to user's demand, reach the height of adjusting the seat support, and then reach the purpose of adjusting the height of the seat of seat support top. Or another method is adopted, a plurality of second mounting holes which are vertically arranged are formed in the seat support, and a fixing hole formed in the left foot and the right foot is abutted against a hole with any height of the second mounting holes according to the requirements of a user and is screwed through the inner hexagonal screw, so that the purpose of adjusting the height of the seat above the seat support is also achieved.

Preferably, the seat support comprises a seat mounting plate and a height-adjusting plate, the height-adjusting plate is provided with the second mounting hole, one end of the height-adjusting plate is vertically and fixedly connected with one end of the seat mounting plate, and the other end of the height-adjusting plate is respectively connected with the left foot and the right foot through the second mounting hole; a plurality of third mounting holes are formed in one side, far away from the height-adjusting plate, of the left foot and the right foot and towards one side of the seat plate, the hole distance of each third mounting hole is the same as that of the corresponding first mounting hole, and the other end of the seat plate mounting plate is connected with the left foot and the right foot through the third mounting holes.

By adopting the technical scheme, the seat support is divided into the seat mounting plate and the height adjusting plate, one or more second mounting holes are formed in the height adjusting plate, one end of the height adjusting plate is fixedly connected with one end of the seat mounting plate, and the other end of the height adjusting plate is adjustably connected with the left side foot and the right side foot through the second mounting holes; corresponding hole has also been seted up to the seat mounting panel other end, selects the third mounting hole and left side foot and right side foot realization adjustable connection with the second mounting hole parallel and level to reach the height of adjusting seat mounting panel and heightening the board simultaneously, and then reach the height of adjusting the seat.

Preferably, a plurality of fourth mounting holes are formed in one side, far away from the backrest, of the left foot and the right foot, and the fourth mounting holes are arranged in an arc shape by taking the seat plate mounting plate and a connecting point close to one side of the backrest as centers.

Through adopting above-mentioned technical scheme, keep away from back one side and set up the fourth mounting hole that a plurality of is the arc and arranges on left side foot and right side foot, make the seat mounting panel use with the tie point that is close to back one side as the center, select and be connected with the fourth mounting hole that is in different radians, make the seat from being close to back one end to keeping away from back one end and have certain inclined plane, realize the angle that can adjust the seat slope according to user's hobby.

Preferably, a fixing strip is arranged between the two seat plate supports, and two ends of the fixing strip are respectively fixedly connected with the two seat plate supports and the seat plate.

Through adopting above-mentioned technical scheme, the fixed strip both ends respectively with be located the seat leg joint of seat lower extreme both sides, form a connection frame, when playing the effect of fixed seat support, be connected with the seat again, realize being connected of whole connection frame and seat, make the connection of seat on the lift chair more firm.

Preferably, the lower ends of the left foot and the right foot are provided with pedals far away from the backrest, and two ends of each pedal are fixedly connected with the left foot and the right foot respectively.

Through adopting above-mentioned technical scheme, set up the pedal in the left side foot and the right side foot lower extreme of lift chair, on the one hand and child's position of sitting habit are adapted to, and on the other hand also can compensate because the height is not enough, child sits on the lift chair foot can't reach ground and hang in half empty, causes the uncomfortable condition of shank.

Preferably, the lower end of the seat plate is provided with a storage rack, and two ends of the storage rack are fixedly connected with the left side foot and the right side foot respectively.

Through adopting above-mentioned technical scheme, set up the supporter between seat lower extreme left side foot and right side foot, can be outside the essential function that realizes that lift chair is used for sitting, can also place the thing, accomplish idle space's utilization, saved the space greatly.

Preferably, the left foot and the right foot are provided with connecting rods on the side far away from the pedals, and two ends of each connecting rod are fixedly connected with the left foot and the right foot respectively.

Through adopting above-mentioned technical scheme, the one end of keeping away from the pedal between seat lower extreme left side foot and right side foot sets up the connective bar, and in coordination with the pedal, acts as the fixed beam between lift chair left side foot and the right side foot, makes the connection between left side foot and the right side foot more firm, can not appear the situation of rocking because there is not fixing device.

Preferably, the connecting angles of the connecting ends of the left foot and the right foot and the seat support far away from the backrest are provided with chamfers, and gaps are reserved between the chamfers and the seat.

Through adopting above-mentioned technical scheme, left side foot and right side foot are kept away from back one side and are the chamfer design and have the clearance with the link of seat support, have broken the mode that conventional seat and support frame in close contact with are connected, make the height-adjusting board of being connected with left side foot and right side foot expose, increase installer's sight scope, and reduced the hand and stretched into the hindrance on every side when the seat lower extreme is installed, make things convenient for the installer to operate.

Preferably, the support frame is provided with a temperature sensor for detecting the room temperature, the backrest is provided with a fan, an air outlet of the fan faces to the position right above the seat plate, and the temperature sensor is electrically connected with the fan.

Through adopting above-mentioned technical scheme, set up smart fan on the back, detect when temperature sensor

When the room temperature is higher than the set temperature, the fan is started automatically to cool the user.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the seat board support is arranged at the lower end of the seat board and is respectively connected with the left foot and the right foot, and a plurality of first mounting holes which are vertically arranged are formed in the left foot and the right foot, or a plurality of second mounting holes which are vertically arranged are formed in the seat board support, so that the height of the seat board support is adjusted, and the purpose of adjusting the height of the seat board above the seat board support is achieved;

2. a plurality of fourth mounting holes which are arranged in an arc shape are formed in the left foot and the right foot and are far away from the backrest, so that the seat plate mounting plate is centered at a connecting point close to one side of the backrest, and the inclination angle of the seat plate can be adjusted according to the preference of a user;

3. through set up the temperature sensor who is used for detecting the room temperature on the support frame, set up the fan on the back, temperature sensor is connected with the fan electricity, has realized the intelligent control electric fan, brings the purpose of cool and fast for the user.

Drawings

FIG. 1 is a schematic view of an embodiment 1 of an assembled lift chair;

FIG. 2 is an exploded schematic view of the assembled lift chair of FIG. 1;

FIG. 3 is a schematic diagram of the explosive structure of example 2;

FIG. 4 is a schematic diagram of the explosive structure of example 3;

FIG. 5 is a schematic diagram of the exploded structure of example 4;

FIG. 6 is a schematic structural view of example 5.

Description of reference numerals: 1. a backrest; 11. a first backrest; 12. a second backrest; 2. a seat plate; 3. a support frame; 31. a left leg; 32. a right foot; 33. a rear leg; 331. a third mounting hole; 34. a forefoot; 341. a first mounting hole; 342. a fourth mounting hole; 343. a second fixing hole; 35. a fixing plate; 4. a seat support; 41. a seat plate mounting plate; 411. a third fixing hole; 42. a height adjusting plate; 421. a second mounting hole; 422. a first fixing hole; 5. a fixing strip; 6. pedaling; 7. a rack; 71. a round bar; 8. a connecting rod; 9. a fan.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses assembled lift chair. Referring to fig. 1, an assembled lift chair, includes back 1, seat 2 and support frame 3, seat 2 and back 1 all set up on support frame 3 and with support frame 3 fixed connection, support frame 3 includes left side foot 31 and right side foot 32, left side foot 31 and right side foot 32 set up respectively in the relative both sides of seat 2 lower extreme. The left foot 31 and the right foot 32 are both designed in a b shape and respectively comprise a rear foot 33 extending to the top end of the backrest 1, an inverted L-shaped front foot 34 and a fixing plate 35 connecting the front foot 34 and the rear foot 33, one end of the front foot 34 is connected with the rear foot 33 at the end close to the ground through the fixing plate 35, and the other end is fixedly connected with the rear foot 33 at the height position of the seat plate 2.

Backrest 1 includes first back 11 and second back 12, and first back 11 is close to the setting of seat 2 and with left side foot 31 and right side foot 32 fixed connection, and second back 12 is kept away from the setting of seat 2 and with left side foot 31 and right side foot 32 top fixed connection. According to the principle of the curvature of the back of a human body, the first backrest 11 is slightly curved toward the inner side of the seat plate 2 relative to the second backrest 12. Gaps are reserved among the first backrest 11, the second backrest 12 and the seat plate 2 so as to keep the back of the human body ventilated.

Left side foot 31 and right side foot 32 lower extreme are kept away from back 1 one side and are provided with

pedal

6, 6 both ends of pedal respectively with left side foot 31 and right side foot 32 fixed connection, pedal 6 outer edge is glossy arc design to human shank causes the injury to human shank when hitting pedal 6 epitaxy.

The shelf 7 is arranged below the seat plate 2 between the left leg 31 and the right leg 32, the shelf 7 is composed of a plurality of round bars 71, the round bars 71 are uniformly arranged along the fixing plates 35 arranged on the left leg 31 and the right leg 32, and two ends of each round bar 71 are fixedly connected with the fixing plates 35 arranged on the left leg 31 and the right leg 32 respectively. Thus, the air on the shelf 7 is circulated and the consumables are saved.

A connecting rod 8 for fixing the two rear legs 33 is further arranged between the two rear legs 33 of the left leg 31 and the right leg 32, and two ends of the connecting rod 8 are respectively in threaded connection with the two rear legs 33 through bolts.

The connecting angles of the connecting ends of the left leg 31 and the right leg 32 and the seat board bracket 4 far away from the backrest 1 are provided with gaps with the seat board 2.

Referring to fig. 2, the lower end of the seat plate 2 is further provided with a pair of seat plate brackets 4, the seat plate brackets 4 comprise a seat plate mounting plate 41 and a height-adjusting plate 42, and the seat plate mounting plate 41 and the height-adjusting plate 42 are vertically and fixedly connected. The seat plate mounting plate 41 is fixedly connected with the horizontal part of the front foot 34 of the left foot 31 and the right foot 32, and the height-adjusting plate 42 is fixedly connected with the vertical part of the front foot 34. Two fixing strips 5 for fixing the seat plate brackets 4 are arranged between the two seat plate brackets 4, two ends of one fixing strip 5 are respectively fixedly connected with the seat plate mounting plates 41 on two sides, and two ends of the other fixing strip 5 are respectively fixedly connected with the height-adjusting plates 42 on two sides; two ends of the two fixing strips 5 are fixedly connected with the seat plate 2.

Example 1: a plurality of first mounting holes 341 are respectively formed in the vertical parts of the front feet 34 of the left foot 31 and the right foot 32 and one side of the rear foot 33 close to the seat plate 2, and the first mounting holes 341 are vertically and uniformly arranged; the first fixing holes 422 corresponding to the first mounting holes 341 are formed at both ends of the seat mounting plate 41, and the height of the seat 2 and the left leg 31 and the right leg 32 can be adjusted by connecting the first mounting holes 341 of any height and the corresponding first fixing holes 422 through bolts.

Example 2: the difference from the embodiment 1 is that, referring to fig. 3, a plurality of second mounting holes 421 are respectively formed on one surface of the height-adjusting plate 42 facing the left leg 31 and the right leg 32, and the second mounting holes 421 are vertically and uniformly arranged; the left leg 31 and the right leg 32 are both provided with a second fixing hole 343 corresponding to the second mounting hole 421. A plurality of third mounting holes 331 are vertically formed in the rear legs 33 of the left leg 31 and the right leg 32, the pitch of the third mounting holes 331 is the same as that of the first mounting holes 341, third fixing holes 411 corresponding to the third mounting holes 331 are formed in the seat plate mounting plate 41, the third mounting holes 331 and the third fixing holes 411 of any height are connected through bolts, and the second mounting holes 421 and the second fixing holes 343 of corresponding heights are connected, so that the height of the seat plate 2 and the height of the left leg 31 and the height of the right leg 32 can be adjusted.

Example 3: the difference between the embodiment 1 and the embodiment 2 is that, referring to fig. 4, a plurality of first mounting holes 341 are respectively formed on the vertical part of the front leg 34 of the left leg 31 and the right leg 32 near the seat board 2, and a plurality of second mounting holes 421 are respectively formed on the side of the height-adjusting board 42 facing the left leg 31 and the right leg 32; a plurality of third mounting holes 331 are vertically formed in the rear legs 33 of the left leg 31 and the right leg 32, third fixing holes 411 corresponding to the third mounting holes 331 are formed in the seat plate mounting plate 41, and the pitch of the first mounting holes 341, the second mounting holes 421 and the third mounting holes 331 is the same. Bolts pass through the corresponding first and second mounting

holes

341 and 421, and the third mounting

holes

331 and 411, so that the height of the seat plate 2 and the left and

right legs

31 and 32 can be adjusted.

Example 4: the difference from the embodiments 1-3 is that, referring to fig. 5, the vertical parts of the front feet 34 on the left foot 31 and the right foot 32 are both provided with a plurality of fourth mounting holes 342, and the fourth mounting holes 342 are arranged in an arc shape by taking the connection point of the horizontal parts of the seat plate mounting plate 41 and the front feet 34 close to the backrest 1 as the center; the height-adjusting plate is provided with a corresponding first fixing hole 422. A plurality of third mounting holes 331 are vertically formed in the rear legs 33 of the left leg 31 and the right leg 32, third fixing holes 411 corresponding to the third mounting holes 331 are formed in the seat plate mounting plate 41, and bolts pass through the corresponding third mounting holes 331 and the third fixing holes 411. The height of the connecting point of the seat plate mounting plate 41 and the left foot 31 and the right foot 32 is not changed, and the height-adjusting plate 42 is connected with the fourth mounting hole 342 with any height, so that the radian of the seat plate 2 is adjustable, and a user can adjust the inclination angle of the seat plate 2 according to the preference of the user.

Example 5: the difference from the embodiments 1-4 is that, referring to fig. 6, a temperature sensor for detecting the room temperature is arranged on the support frame, a fan 9 is arranged on the backrest, the air outlet of the fan 9 faces to the position right above the seat plate, and the temperature sensor is electrically connected with the fan 9. When the temperature sensor detects that the room temperature is higher than the set temperature, the fan 9 starts automatically.

The implementation principle of an assembled lift chair of the embodiment of the application is as follows: during the use, pass through screw rod, cross bore nut with two fixed strips 5 respectively with seat mounting panel 41 and the board 42 of increaseing of two seat supports 4 and connect the locking, the connection of each connecting piece in this application all adopts screw rod, cross bore nut to connect. A plurality of round bars 71 are connected to the fixing plates 35 at the lower ends of the left and

right legs

31 and 32, the foot support 6 is connected to the lower ends of the front legs 34 of the left and

right legs

31 and 32, the connecting bar 8 is connected to the lower ends of the rear legs 33 of the left and

right legs

31 and 32, and the first backrest 11 and the second backrest 12 are connected to the upper ends of the rear legs 33 of the left and

right legs

31 and 32 in this order.

According to the above four embodiments, the seat support 4 is connected to the left leg 31 and the right leg 32 in the following four ways:

the first method is as follows: according to the height of a user, the height which makes the user feel comfortable when the user sits on the chair is determined, the first mounting holes 341 with the same horizontal height as the rear feet 33 of the front feet 34 are selected, the seat board bracket 4 is connected with the left foot 31 and the right foot 32, and the seat board mounting plate 41 and the height-adjusting plate 42 are fixedly connected with the left foot 31 and the right foot 32 through the first fixing holes 422.

The second method comprises the following steps: the second mounting hole 421 and the third mounting hole 331 with the same horizontal height are selected to connect the seat support 4 with the left leg 31 and the right leg 32, the seat mounting plate 41 is fixedly connected with the left leg 31 and the right leg 32 through the third fixing hole 411, and the height-adjusting plate 42 is fixedly connected with the left leg 31 and the right leg 32 through the second mounting hole 421.

The third method comprises the following steps: the first mounting hole 421 and the third mounting hole 331 with the same horizontal height of the front leg 34 and the rear leg 33 and the second mounting hole 421 with any height are selected to connect the seat support 4 with the left leg 31 and the right leg 32, the seat mounting plate 41 is fixedly connected with the left leg 31 and the right leg 32 through the third fixing hole 411, and the height-adjusting plate 42 is fixedly connected with the left leg 31 and the right leg 32 through the second mounting hole 421.

The method is as follows: according to the sitting habit of the user, the third mounting hole 331 with any height and the fourth mounting hole 342 with any radian of different radians are selected, the seat plate mounting plate 41 is connected with the left foot 31 and the right foot 32, so that the seat plate mounting plate 41 has a certain inclination angle, and then the seat plate 2 has a certain inclination radian from one side close to the backrest 1 to one side far away from the backrest 1.

After the left foot 31 and the right foot 32 of the seat support 4 and the fixing strip 5 are connected, the seat 2 is placed above the completion frame formed by the seat support 4 and the fixing strip 5, and the screw penetrates through the lower end of the fixing strip 5 and is fixedly connected with the cross hole nut embedded in the seat 2, so that the seat 2 is fixed. And finally covering the corresponding counter bore with a plastic cover.

After the whole chair is assembled, whether all the connecting pieces are firm or not is checked again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an assembled lift chair, includes back (1), seat (2) and support frame (3), seat (2) and back (1) all set up on support frame (3) and with support frame (3) fixed connection, its characterized in that: the supporting frame (3) comprises a left leg (31) and a right leg (32), and the left leg (31) and the right leg (32) are respectively arranged on two opposite sides of the lower end of the seat plate (2); the lower end of the seat board (2) is also provided with a pair of seat board brackets (4), and the seat board brackets (4) are respectively connected with a left foot (31) and a right foot (32); the side, close to the seat plate (2), of the left side foot (31) and the side, close to the right side foot (32), of the right side foot (32) and faces the inner side of the chair are respectively provided with a plurality of first mounting holes (341), the first mounting holes (341) are vertically and uniformly arranged, and the seat plate bracket (4) is adjustably connected with the left side foot (31) and the right side foot (32) through the first mounting holes (341); and/or

A plurality of second mounting holes (421) are formed in one surfaces of the seat support (4) towards the left foot (31) and the right foot (32), the second mounting holes (421) are vertically and uniformly arranged, and the seat support (4) is adjustably connected with the left foot (31) and the right foot (32) through the second mounting holes (421).

2. The modular lift chair of claim 1, wherein: the seat board support (4) comprises a seat board mounting plate (41) and a height adjusting plate (42), the height adjusting plate (42) is provided with a second mounting hole (421), one end of the height adjusting plate (42) is vertically and fixedly connected with one end of the seat board mounting plate (41), and the other end of the height adjusting plate is respectively connected with the left foot (31) and the right foot (32) through the second mounting hole (421); a plurality of third mounting holes (331) are formed in one side, far away from the height adjusting plate (42), of the left side foot (31) and the right side foot (32) and facing the seat plate (2), the hole distance of the third mounting holes (331) is the same as that of the first mounting holes (341), and the other end of the seat plate mounting plate (41) is connected with the left side foot (31) and the right side foot (32) through the third mounting holes (331).

3. The modular lift chair of claim 2, wherein: a plurality of fourth mounting holes (342) are formed in one sides, far away from the backrest (1), of the left side foot (31) and the right side foot (32), and the fourth mounting holes (342) are arranged in an arc shape by taking a connecting point of the seat plate mounting plate (41) and one side close to the backrest (1) as a center.

4. The modular lift chair of claim 1, wherein: a fixing strip (5) is arranged between the two seat plate brackets (4), and two ends of the fixing strip (5) are respectively fixedly connected with the two seat plate brackets (4) and the seat plate (2).

5. A modular lift chair according to claim 3, wherein: the utility model discloses a chair backrest, including left side foot (31) and right side foot (32), left side foot (31) and right side foot (32) lower extreme keep away from back (1) one side and are provided with pedal (6), pedal (6) both ends respectively with left side foot (31) and right side foot (32) fixed connection.

6. The modular lift chair of claim 1, wherein: the lower end of the seat plate (2) is provided with a storage rack (7), and two ends of the storage rack (7) are fixedly connected with the left side foot (31) and the right side foot (32) respectively.

7. The modular lift chair of claim 5, wherein: left side foot (31) and right side foot (32) keep away from pedal (6) one side and are provided with connective bar (8), connective bar (8) both ends respectively with left side foot (31) and right side foot (32) fixed connection.

8. The modular lift chair of claim 1, wherein: and the connecting angles of the connecting ends of the left leg (31) and the right leg (32) and the seat support (4) far away from the backrest (1) are provided with chamfers, and gaps are reserved between the chamfers and the seat (2).

9. The modular lift chair of claim 1, wherein: the temperature sensor used for detecting the room temperature is arranged on the support frame (3), the fan (9) is arranged on the backrest (1), the air outlet of the fan (9) faces to the position right above the seat plate (2), and the temperature sensor is electrically connected with the fan (9).