CN113796663A

CN113796663A - Sitting posture correcting device

Info

Publication number: CN113796663A
Application number: CN202110226373.0A
Authority: CN
Inventors: 邢誉田; 杨菊红; 李能辉; 李能琴; 杨万云; 杨万生
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-12-17
Anticipated expiration: 2041-03-01
Also published as: CN113796663B

Abstract

The invention discloses a sitting posture correcting device, which relates to the field of health medical appliances and comprises a chair seat, chair legs and a chair back, the upper surface of the chair seat is provided with a groove, the inner side wall of the groove is rotatably provided with a chair back, the top of the chair back is rotatably provided with a correcting device, the invention connects the human body with the chair back together by mounting a supporting device which makes the correcting device always in the horizontal direction at the outer side of the chair back and rotatably mounting retractable chair legs at the bottom of the chair seat, when a student needs to bend down to write, the chair back is driven to rotate, and the correcting device body is supported by the supporting device, so that the correcting device body is always in a horizontal state, therefore, the correcting device is always attached to a human body and corrects the human body, the aim of good correcting effect is fulfilled, and the problems that the existing correcting device in the prior art is poor in correcting effect and cannot be installed on a chair are solved.

Description

Sitting posture correcting device

Technical Field

The invention relates to the field of health medical instruments, in particular to a sitting posture correction device.

Background

Middle and primary schools are in the golden period of physical development, and this age stage is mobile more, and study and class are heavier, often can be long time sit before the desk, under the incorrect condition of position of sitting, there is very big influence to eyesight, most teenagers' eyesight problem all is because incorrect position of sitting causes now, in prior art, general seat does not possess the function of correction, thereby the phenomenon that leads to the student to bow back takes place, and common correcting unit, it is good if the back of the body is back, be the X type through utilizing the powerful area and install at the back of human body, the centre is reining in human belly through the band, extrude human belly, long-time use can lead to the phenomenon of human anorexia to take place, influence human health, and the correction effect is not good, consequently, need a position of sitting correcting unit, in order to solve above-mentioned problem.

Disclosure of Invention

The present invention is directed to a sitting posture correcting device, which solves the problems of the prior art that the correcting effect is not good and the device cannot be mounted on a chair.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a position of sitting correcting unit, includes seat support, chair leg and the back of the chair, the seat support upper surface is seted up flutedly, the recess inside wall rotates installs the back of the chair, the top of the back of the chair rotates installs the correcting unit body, the support arrangement who makes the correcting unit body be in the horizontal direction all the time is installed in the outside of the back of the chair, the bottom of seat support rotates installs collapsible chair leg.

In a further embodiment, the back of the chair has the lug that is used for installing strutting arrangement with one side top fixed mounting of recess contact, strutting arrangement includes first bracing piece and second bracing piece, first bracing piece rotates with the lug to be connected, the inside slidable mounting of another terminal surface of first bracing piece has the second bracing piece, certain damping has between the inside wall of first bracing piece and the lateral wall of second bracing piece, the other end of second bracing piece and the one side internally mounted that the correcting unit body contacted have slidable connecting device, connecting device and correcting unit body lateral wall rotate to be connected, and when the back of the chair rotates for the second bracing piece slides inside first bracing piece, and the second bracing piece supports the correcting unit body, makes correcting unit body and human laminating all the time.

In a further embodiment, the spout that is used for installing connecting device is offered to the inside of second bracing piece, the axis of rotation is installed with one side rotation of connecting device contact to the correcting unit body, connecting device is including rotating cap and push rod, the both sides fixed mounting who rotates the cap has the sliding block, the spout both sides seted up with sliding block assorted sliding tray, the inside sliding tray that is used for the sliding block pivoted of offering of sliding tray rotates the groove, the sliding block just slides to rotating the groove when rotating the cap and laminating with the axis of rotation mutually, one side fixed mounting who rotates the cap and keeps away from the correcting unit body has the push rod, the other end of push rod runs through second bracing piece lateral wall, and the push rod is stirred in the manual work, rotates the cap and slides and is in the same place with swivelling joint.

In a further embodiment, the inside wall fixed mounting who rotates the cap has a plurality of joint pieces, the axis of rotation lateral wall seted up with joint piece assorted joint groove, joint piece and joint groove all are provided with six.

In a further embodiment, the standing groove that is used for installing the correcting unit body is offered to the back of the chair surface, the correcting unit body includes dwang, two support frames and U type baffle, the dwang rotates the inside of installing at the standing groove, the fixed surface of dwang installs the support frame that the symmetry set up, two the lateral wall and the axis of rotation of support frame are rotated and are connected, two slidable mounting has adjustable U type baffle between the support frame.

In a further embodiment, the inner wall of the support frame is provided with a slide rail for installing a U-shaped baffle, two sides of the U-shaped baffle, which are in contact with the support frame, are provided with limit grooves, the limit grooves are internally and slidably provided with fixture blocks, the fixture blocks always slide in the limit grooves, the bottom of the slide rail is provided with a plurality of clamping grooves matched with the fixture blocks, the fixture blocks and the clamping grooves are both arranged into rectangles, the inner side wall of the chair back is provided with a constraint belt, and the fixture blocks are manually stirred to slide in the limit grooves so as to control the distance between the U-shaped baffle and the chair back.

In further embodiment, the chair leg is installed in the rotation of the bottom both sides of seat support, the bottom slidable mounting of seat support has the sliding seat that the symmetry set up, the connecting rod is all installed in the rotation of the bottom of sliding seat, the other end of connecting rod rotates with the inside wall of chair leg to be connected, two the connecting rod is the crisscross distribution of X type.

In a further embodiment, folding groove has been seted up to the bottom of seat support, folding inslot portion rotates installs the threaded rod, the surface and the sliding seat meshing of threaded rod, symmetry and opposite direction's screw thread have been seted up to the surface of threaded rod, the one end of threaded rod runs through seat support lateral wall fixed mounting and has the carousel, two the surface of chair leg just is with the bottom parallel and level of seat support when the sliding seat is at a distance from the farthest, the rectangular channel that is used for installing the chair leg is seted up to folding inslot lateral wall bottom, rotates the carousel and drives the connecting rod and take place to rotate for the connecting rod drives the seat support and takes place to rotate.

Compared with the prior art, the invention has the beneficial effects that:

the invention discloses a sitting posture correction device, which is characterized in that a human body is connected with a chair back, when a student needs to bend down to write, the chair back is driven to rotate, and at the moment, a correction device body is supported by a support device and is always in a horizontal state, so that the correction device body is always attached to the human body and corrects the human body, the aim of good correction effect is fulfilled, and the problems that the existing correction device in the prior art is poor in correction effect and cannot be installed on a chair are solved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top cross-sectional view of a coupling device according to an embodiment of the present invention;

FIG. 3 is a side sectional view of the embodiment of the present invention at the sliding groove and the rotating groove;

FIG. 4 is a partial cross-sectional view of the junction of the support bracket and the U-shaped baffle according to the embodiment of the present invention;

FIG. 5 is a side cross-sectional view of a seat and legs of an embodiment of the present invention;

figure 6 is a side cross-sectional view of the chair leg retracted in accordance with the present invention.

In the figure: 1. a chair seat; 2. a chair leg; 3. a chair back; 31. a placement groove; 32. a bump; 4. a support device; 41. a first support bar; 42. a second support bar; 421. a chute; 422. a sliding groove; 423. a rotating groove; 5. a correcting device body; 51. rotating the rod; 52. a support frame; 521. a slide rail; 522. a card slot; 523. a rotating shaft; 524. a clamping groove; 53. a U-shaped baffle plate; 531. a limiting groove; 6. a clamping block; 7. a groove; 8. a connecting device; 81. a push rod; 82. rotating the cap; 821. a slider; 822. a clamping block; 9. a sliding seat; 10. a threaded rod; 11. a connecting rod; 12. a turntable; 13. a folding slot; 131. a rectangular groove.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

Example 1

Referring to fig. 1, the present embodiment provides a sitting posture correcting device, which includes a seat 1, legs 2 and a backrest 3, wherein a groove 7 is formed in the upper surface of the seat 1, the groove 7 is in a rectangular shape with an opening at the top and one side, and limits the backrest 3, so that the backrest 3 can only rotate from a vertical state to a horizontal state, and the phenomenon of falling down of a human body due to excessive rotation cannot occur.

The back of the chair 3 is installed in the rotation of recess 7 inside wall, the correcting unit body 5 is installed in the top rotation of the back of the chair 3, the cooperation of back of the chair 3 and correcting unit body 5 is used, clamp the human body between correcting unit body 5 and the back of the chair 3, thereby accomplish the function to the human body correction, and the waist that the back of the chair 3 can follow the human body is rotated forward, can not prevent that human upper portion from leaning forward, and well keep with the laminating at human back, can avoid the crooked condition of waist, better correction effect has, and have certain flexibility, can not appear leaving the not good phenomenon of correction effect of clearance lead to between the back of the chair 3 and the human back.

The supporting device 4 which enables the correcting device body 5 to be located in the horizontal direction all the time is installed on the outer side of the chair back 3, when the chair back 3 rotates, the supporting device 4 supports the correcting device body 5 all the time, the correcting device body 5 can be prevented from extruding shoulders of a human body, the use comfort is improved, the correcting device body 5 is attached to the shoulders of the human body all the time, and the purpose of good correcting effect is achieved.

Collapsible chair leg 2 is installed in the bottom rotation of seat support 1, accomodates chair leg 2 in the inside of seat support 1 to become the square structure, reach the purpose of being convenient for carry and carrying, also can save storage space when depositing moreover.

A lug 32 for installing the supporting device 4 is fixedly arranged above one side of the chair back 3 contacted with the groove 7, and the lug 32 gives a pivot point for the rotation of the supporting device 4, so that the supporting device 4 can rotate stably.

In order to keep the correcting device body 5 in a horizontal state, prevent the correcting device body 5 from causing pressure burden on the shoulder of the human body, and further improve the correcting effect, the supporting device 4 comprises a first supporting rod 41 and a second supporting rod 42, the first supporting rod 41 is rotatably connected with the lug 32, and the second supporting rod 42 is slidably mounted inside the other end face of the first supporting rod 41.

The cooperation of first bracing piece 41 and second bracing piece 42 is used, when the back of the chair 3 takes place to rotate, drive correcting unit body 5 and take place to rotate, thereby make correcting unit body 5 drive second bracing piece 42 slide in first bracing piece 41 is inside, certain damping has between the inside wall of first bracing piece 41 and the lateral wall of second bracing piece 42, make to have certain frictional force between first bracing piece 41 and the second bracing piece 42, thereby make second bracing piece 42 stop at the optional position, thereby make strutting arrangement 4, form triangle-shaped between correcting unit body 5 and the back of the chair 3, accomplish the support function to correcting unit body 5, thereby make correcting unit body 5 be in the horizontality and closely laminate with the human body, reach and rectify effectual purpose.

Referring to fig. 1-3 and 5-6, a slidable connecting device 8 is installed inside a side of the other end of the second support rod 42 contacting the calibration device body 5, the connecting device 8 is rotatably connected with an outer side wall of the calibration device body 5, the calibration device body 5 is connected with the support device 4 through the connecting device 8, and the connecting device 8 is configured to slide towards a side far away from the calibration device body 5, so that the support device 4 is separated from the calibration device body 5, and the support device 4 and the calibration device body 5 are folded in sequence, so that the occupied space between the support device 4 and the calibration device body 5 is reduced, and the purpose of convenient transportation is achieved.

And at this moment, the chair legs 2 are folded, the chair can form a cuboid structure, the carrying and the placing are both convenient, and the stacking of the chair is more convenient when the chair is stacked, so that the space is greatly saved.

One side fixed mounting that second bracing piece 42 and seat support 1 after folding contacted has the grafting piece, the top of seat support 1 seted up with grafting piece assorted inserting groove, the cooperation of grafting piece and inserting groove is used, it is spacing to second bracing piece 42, prevent second bracing piece 42 roll-off from first bracing piece 41, avoid second bracing piece 42 roll-off back and external phenomenon of bumping to take place, also have certain resistance between grafting piece and the inserting groove moreover, make strutting arrangement 4 place more stably.

In order to connect the second support rod 42 and the correcting device body 5 into a whole, the sliding groove 421 for installing the connecting device 8 is formed in the second support rod 42, and the connecting device 8 is arranged in the sliding groove 421, so that the space can be saved, and the connecting device 8 can slide more stably.

One side that correcting unit body 5 and connecting device 8 contact rotates installs axis of rotation 523, and connecting device 8 includes push rod 81 and rotation cap 82, rotates the both sides fixed mounting of cap 82 and has a sliding block 821, and spout 421 both sides are seted up with sliding block 821 assorted sliding tray 422, and sliding block 821 and sliding tray 422 are spacing to rotating cap 82 for rotating cap 82 slides along established orbit.

Inside the rotation groove 423 that is used for sliding block 821 pivoted of offering of sliding tray 422, sliding block 821 just slides to rotating tray 423 when rotating cap 82 and axis of rotation 523 are laminated mutually, when axis of rotation 523 drives rotating cap 82 and takes place to rotate, the cooperation of sliding block 821 and rotation groove 423 is used for rotating cap 82 slides inside spout 421 all the time, the phenomenon that can not take place to break away from, thereby the completion connects into a holistic purpose with second bracing piece 42 and correcting unit body 5.

In order to facilitate the control of the connection relationship between the rotating cap 82 and the rotating shaft 523, a push rod 81 is fixedly installed on one side of the rotating cap 82 away from the correcting device body 5, the other end of the push rod 81 penetrates through the outer side wall of the second supporting rod 42, the push rod 81 is manually pushed, and the rotating cap 82 slides to be connected with the rotating shaft 523.

When needs will be with correcting device body 5 and second bracing piece 42 phase separation, only need reverse slip push rod 81 to realize the separation of correcting device body 5 and second bracing piece 42, thereby dismantle into two parts, fold back correcting device body 5 and strutting arrangement 4, fold into a cuboid structure with whole device, save occupation space volume, reach the purpose of the transport of being convenient for.

In order to make firm in connection between rotation cap 82 and the axis of rotation 523, the inside wall fixed mounting who rotates cap 82 has a plurality of joint pieces 822, axis of rotation 523 lateral wall seted up with joint piece 822 assorted joint groove 524, joint piece 822 and joint groove 524 all are provided with six, the cooperation of joint piece 822 and joint groove 524 is used, make rotation cap 82 and axis of rotation 523 be connected more stable, the phenomenon of axis of rotation 523 at the inside rotation that takes place of rotation cap 82 can not appear.

In order to facilitate carrying after contracting chair leg 2, chair leg 2 is installed in the rotation of the bottom both sides of seat support 1, the bottom slidable mounting of seat support 1 has the sliding seat 9 that the symmetry set up, connecting rod 11 is installed in the bottom of sliding seat 9 all rotates, the other end of connecting rod 11 rotates with the inside wall of chair leg 2 to be connected, when two sliding seats 9 slide to the direction of keeping away from each other, drive connecting rod 11 and take place to rotate, make connecting rod 11 drive chair leg 2 and take place to rotate, thereby accomplish the function of shrink.

Two connecting rods 11 are the crisscross distribution of X type, and the condition of bumping when avoiding two connecting rods 11 to rotate leads to the lock to die takes place.

Folding groove 13 has been seted up to the bottom of seat support 1, and folding groove 13 internal rotation installs threaded rod 10, and the surface and the sliding seat 9 meshing of threaded rod 10, the screw thread of symmetry and opposite direction have been seted up to the surface of threaded rod 10 for two sliding seats 9 slide along opposite direction all the time, thereby make connecting rod 11 drive chair leg 2 shrink.

One end of the threaded rod 10 penetrates through the outer side wall of the chair seat 1 and is fixedly provided with a turntable 12, so that the sliding seat 9 can be better controlled to slide, and the chair legs 2 can be conveniently retracted.

The outer surface of the chair leg 2 is just parallel and level with the bottom of the chair seat 1 when two sliding seats 9 are farthest away, the bottom of the inner side wall of the folding groove 13 is provided with a rectangular groove 131 for installing the chair leg 2, the rectangular groove 131 is limited for the chair leg 2, so that the chair leg 2 can only rotate to a vertical state, and the phenomenon that the chair leg 2 is deformed and damaged due to excessive rotation cannot occur.

In this embodiment, at first strutting arrangement 4 and 5 separation backs of correcting unit body, rotate the back of the chair 3 again for back of the chair 3 falls into recess 7, contracts chair leg 2 at last, folds whole device together, has saved shared space and has reached the purpose of portable and transportation, the effectual convenience that has improved whole device.

At the moment, the correcting device body 5 is positioned on one side of the chair back 3 and is in a handle shape, so that the whole device can be conveniently and manually dragged, and the portable effect is better.

Only with strutting arrangement 4 shrink, rotate back of the chair 3 again into in recess 7, make the whole stool that becomes of chair use this moment to correcting unit body 5 can rotate and two chair legs 2 between, use as the baffle, prevent that child from stretching out to the inboard with the foot, lead to the injured condition of foot to take place.

At the moment, feet can be put on the correcting device body 5 to be used as a pedal, so that the pressure of legs of a human body is relieved, and the application range is enlarged.

Embodiment 2, please refer to fig. 1 and fig. 4, which are different from embodiment 1 in that:

the outer surface of the chair back 3 is provided with a placing groove 31 for installing the correcting device body 5, and the placing groove 31 provides a rotating space for the correcting device body 5, so that the correcting device body 5 can be conveniently rotated to correct the human body.

The correcting device body 5 comprises a rotating rod 51, two supporting frames 52 and a U-shaped baffle 53, the rotating rod 51 is rotatably installed in the placing groove 31, the supporting frames 52 symmetrically arranged are fixedly installed on the outer surface of the rotating rod 51, the supporting frames 52 support the U-shaped baffle 53, and the outer side walls of the two supporting frames 52 are rotatably connected with the rotating shaft 523.

The head of the human body can pass through the space between the two support frames 52, the support frames 52 are just positioned at the upper sides of the shoulders of the human body, and the U-shaped baffle plates 53 are adjusted to be attached to the chest of the human body, so that the correcting device body 5 can be installed.

An adjustable U-shaped baffle 53 is slidably arranged between the two support frames 52, and the human body is limited under the combined action of the chair back 3 and the U-shaped baffle 53, so that the human vertebra is prevented from inclining, and the aim of correction is fulfilled.

In order to adjust the distance between the U-shaped baffle 53 and the chair back 3 conveniently, the inner wall of the supporting frame 52 is provided with a sliding rail 521 for installing the U-shaped baffle 53, and the sliding rail 521 limits the clamping block 6, so that the clamping block 6 can only drive the U-shaped baffle 53 to slide in the horizontal direction.

Limiting groove 531 is seted up to the both sides that U type baffle 53 and support frame 52 contacted, and limiting groove 531 inside slidable mounting has fixture block 6, and fixture block 6 slides in the inside of limiting groove 531 all the time, and limiting groove 531 and fixture block 6 all set up to the T type to guaranteed that fixture block 6 drives U type baffle 53 and slides.

A plurality of draw-in grooves 522 with 6 assorted of fixture block are seted up to slide rail 521's bottom, and the cooperation of fixture block 6 and draw-in groove 522 is used to make the fixed function to U type baffle 53, because draw-in groove 522 is provided with a plurality ofly, thereby can make U type baffle 53 fixed in different positions, reach the purpose of adjusting the distance between U type baffle 53 and the back of the chair 3, thereby satisfy the human body of different sizes and rectify.

Fixture block 6 and draw-in groove 522 all set up to the rectangle, set up through the rectangle for U type baffle 53 can not take place after fixed the phenomenon of rocking from left to right, further improve the stability fixed to U type baffle 53.

The inner side wall of the chair back 3 is provided with a binding belt which binds the chest of the human body, thereby further improving the correction effect.

The correcting device body 5 is not limited to the above-mentioned one, and can be replaced by a belt, such as a belt and a belt buckle commonly used on a backpack, and the belt is lighter, and when the belt is used, the supporting device 4 is not needed, so that the structure of the chair is reduced, and the chair is lighter.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a position of sitting correcting device, includes seat support (1), chair leg (2) and back of the chair (3), its characterized in that: the utility model discloses a chair, including seat support (1), recess (7) inside wall rotate and install back of the chair (3), the top of the back of the chair (3) rotates and installs correcting unit body (5), the outside of the back of the chair (3) is installed and is made correcting unit body (5) be in the strutting arrangement (4) of horizontal direction all the time, the bottom of seat support (1) is rotated and is installed collapsible chair leg (2).

2. A sitting posture correcting apparatus as defined in claim 1, wherein: the upper part of one side of the chair back (3) contacting with the groove (7) is fixedly provided with a convex block (32) used for installing the supporting device (4), the supporting device (4) comprises a first supporting rod (41) and a second supporting rod (42), the first supporting rod (41) is rotatably connected with the convex block (32), the second supporting rod (42) is slidably installed inside the other end face of the first supporting rod (41), a certain damping is arranged between the inner side wall of the first supporting rod (41) and the outer side wall of the second supporting rod (42), a slidable connecting device (8) is installed inside one side of the other end of the second supporting rod (42) contacting with the correcting device body (5), the connecting device (8) is rotatably connected with the outer side wall of the correcting device body (5), and when the chair back (3) rotates, the second supporting rod (42) slides inside the first supporting rod (41), the second support rod (42) supports the correcting device body (5) so that the correcting device body (5) is always attached to a human body.

3. A sitting posture correcting apparatus as defined in claim 2, wherein: the inside of second bracing piece (42) is seted up spout (421) that is used for installing connecting device (8), correcting unit body (5) rotates with one side of connecting device (8) contact and is installed axis of rotation (523), connecting device (8) include push rod (81) and rotation cap (82), the both sides fixed mounting of rotation cap (82) has sliding block (821), spout (421) both sides are seted up with sliding block (821) assorted sliding tray (422), sliding tray (422) inside is seted up and is used for sliding block (821) pivoted rotation groove (423), sliding block (821) just slides in rotation groove (423) when rotating cap (82) and axis of rotation (523) are laminated mutually, one side fixed mounting that correcting unit body (5) was kept away from to rotation cap (82) has push rod (81), the other end of push rod (81) runs through second bracing piece (42) lateral wall, the push rod (81) is manually stirred, and the rotating cap (82) slides and is connected with the rotating shaft (523).

4. A sitting posture correcting apparatus as defined in claim 3, wherein: the inside wall fixed mounting who rotates cap (82) has a plurality of joint pieces (822), axis of rotation (523) lateral wall seted up with joint piece (822) assorted joint groove (524), joint piece (822) and joint groove (524) all are provided with six.

5. The sitting posture correcting apparatus as claimed in claim 4, wherein: the utility model discloses a correcting device, including the setting of standing groove (31) that is used for installing correcting device body (5) is seted up to back of the chair (3) surface, correcting device body (5) are including dwang (51), two support frames (52) and U type baffle (53), dwang (51) rotate and install the inside at standing groove (31), the fixed surface of dwang (51) installs support frame (52) that the symmetry set up, two the lateral wall and axis of rotation (523) of support frame (52) rotate to be connected, two slidable mounting has adjustable U type baffle (53) between support frame (52).

6. The sitting posture correcting apparatus as claimed in claim 5, wherein: the utility model discloses a spacing structure of chair back, including support frame (52), slide rail (521) that are used for installing U type baffle (53) are seted up to the inner wall of support frame (52), spacing groove (531) have been seted up to the both sides that U type baffle (53) and support frame (52) contacted, spacing groove (531) have been seted up to limiting groove (531) inside slidable mounting has fixture block (6), fixture block (6) slide in the inside of spacing groove (531) all the time, a plurality of draw-in grooves (522) with fixture block (6) assorted are seted up to the bottom of slide rail (521), fixture block (6) and draw-in groove (522) all set up to the rectangle, back of the chair (3) inside wall is provided with the constraint area, and the manual work is stirred fixture block (6) and is slided in spacing groove (531), controls the distance between U type baffle (53) and the back of the chair (3).

7. A sitting posture correcting apparatus as defined in claim 1, wherein: chair leg (2) are installed in the rotation of the bottom both sides of seat support (1), the bottom slidable mounting of seat support (1) has slide seat (9) that the symmetry set up, the bottom of slide seat (9) is all rotated and is installed connecting rod (11), the other end of connecting rod (11) rotates with the inside wall of chair leg (2) and is connected, two connecting rod (11) are the crisscross distribution of X type.

8. A sitting posture correcting apparatus as defined in claim 7, wherein: folding groove (13) have been seted up to the bottom of seat support (1), threaded rod (10) are installed in folding groove (13) internal rotation, the surface and sliding seat (9) meshing of threaded rod (10), the screw thread of symmetry and opposite direction is seted up to the surface of threaded rod (10), the one end of threaded rod (10) is run through seat support (1) lateral wall fixed mounting and is had carousel (12), two the surface of chair leg (2) is just with the bottom parallel and level of seat support (1) when sliding seat (9) are apart from the farthest, rectangular channel (131) that are used for installing chair leg (2) are seted up to folding groove (13) inside wall bottom, rotate carousel (12) and drive connecting rod (11) and take place to rotate for connecting rod (11) drive seat support (1) and take place to rotate.