CN215737939U

CN215737939U - Convenient folding hidden book chair

Info

Publication number: CN215737939U
Application number: CN202122126458.XU
Authority: CN
Inventors: 朱作乐; 朱卓夫; 甘卫强; 朱国祥
Original assignee: Shenzhen City End Furniture Co ltd
Current assignee: Shenzhen City End Furniture Co ltd
Priority date: 2021-09-05
Filing date: 2021-09-05
Publication date: 2022-02-08
Anticipated expiration: 2031-09-05

Abstract

The utility model discloses a conveniently-folded hidden book chair which comprises a chair, wherein a first rotating shaft is arranged on the front side and the back side of the chair, a supporting column is rotatably connected to the outer ring of the first rotating shaft, a handrail is hinged to one end, away from the first rotating shaft, of the supporting column, a limiting sleeve is slidably sleeved on the outer ring of the handrail, a connecting column is slidably sleeved on the top of the limiting sleeve, a handle is fixedly installed at the top of the connecting column, a first spring sleeved on the outer ring of the connecting column is fixedly installed at the bottom of the handle, one end, away from the handle, of the first spring is fixedly connected with the limiting sleeve, a movable plate can slowly jack a leg support when a backrest is rotated, the leg support can support the legs of a user, blood can keep flowing when the user lies, the leg paralysis can be avoided when the user rises, the height of the leg support is reduced after the device is folded, and the leg support can be placed into a cosmetic table, The desk and the like reduce the space occupation, increase the activity space and facilitate the body activity of the user.

Description

Convenient folding hidden book chair

Technical Field

The utility model relates to the field of furniture, in particular to a hidden book chair convenient to fold.

Background

The chair is a daily life furniture, a seat with a backrest and armrests, modern chairs pursue beauty and fashion, some chairs are not used as seats alone any more, and the life of human beings is more convenient under the combination of science and technology.

However, the traditional chair can only use sitting postures, the posture is fixed, when a user lies down, legs are bent, blood flow is unsmooth, and therefore leg paralysis is caused.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In order to solve the technical problems in the background art, the utility model provides a conveniently-folded hidden book chair, which is characterized in that a movable plate can slowly jack a leg support when a backrest is rotated, the leg support can support the legs of a user, so that blood can keep circulating when the user lies, the leg paralysis when the user stands up is avoided, the height of the conveniently-folded hidden book chair is reduced after the conveniently-folded hidden book chair is folded, the conveniently-folded hidden book chair can be placed at the bottoms of a cosmetic table, a desk and the like, the occupied space is reduced, the activity space is increased, and the body of the user can be conveniently moved.

(II) technical scheme

The utility model provides a conveniently-folded concealed book chair which comprises a chair, wherein a first rotating shaft is arranged on the front side and the back side of the chair, a supporting column is rotatably connected to the outer ring of the first rotating shaft, a handrail is hinged to one end, away from the first rotating shaft, of the supporting column, a limiting sleeve is slidably sleeved on the outer ring of the handrail, a connecting column is slidably sleeved on the top of the limiting sleeve, a handle is fixedly installed at the top of the connecting column, a first spring sleeved on the outer ring of the connecting column is fixedly installed at the bottom of the handle, one end, away from the handle, of the first spring is fixedly connected with the limiting sleeve, a first clamping block is fixedly installed at the bottom of the connecting column, a first limiting block is fixedly installed at the left end of the limiting sleeve, a second rotating shaft is arranged on the left side of the chair, a backrest is rotatably connected to the outer ring of the second rotating shaft, and second limiting blocks are arranged on the front side and the back side of the backrest, the bottom fixed mounting of chair has first bent axle and second bent axle, the second fixture block has been cup jointed in the outer lane slip of first bent axle, the back fixed mounting of second fixture block has a plurality of bolts, the back fixed mounting of second fixture block has the cover to establish the second spring in first bent axle outer lane, the bottom sliding connection of chair has the fly leaf, the right side of chair is rotated and is connected with the leg and hold in the palm.

Preferably, the top of the armrest is provided with a first ratchet, the bottom of the first clamping block is provided with a second ratchet, and the first ratchet is meshed with the second ratchet.

Preferably, the first limiting block is a ball body, the two sides of the second limiting block are provided with spherical clamping grooves, and one side of the second limiting block, which is far away from each other, is provided with a first through hole which penetrates through and extends to the spherical clamping grooves.

Preferably, the outer lane of second pivot rotates and has cup jointed first belt pulley, the bottom fixed mounting of chair has the second bent axle, the outer lane of second bent axle rotates and is connected with the second belt pulley, first belt pulley and second belt pulley pass through the belt and connect, the front and the back of second belt pulley all weld the second gear that rotates and cup joint in the second bent axle outer lane, second gear and first gear engagement.

Preferably, one end, far away from the second clamping block, of the second spring is fixedly connected with the front face of the first gear, and a cushion is arranged at the top of the chair.

Preferably, the bottom of the movable plate is provided with first teeth, the first gear is meshed with the first teeth, and the front face of the first gear is provided with a slot corresponding to the bolt.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

1. the device is provided with a limiting sleeve, a first limiting block, a second limiting block, a movable plate and the like, wherein when a user pulls up a handle and leans on the handle leftwards, a backrest can rotate anticlockwise, meanwhile, the movable plate moves rightwards through a first gear meshed with the second gear, the movable plate moving rightwards can slowly jack a leg support, the leg support provides support for legs of the user, blood can be kept flowing when the user lies, and leg paralysis is avoided when the user rises;

2. the device is rolled over through setting up the handle, the back, the handrail, the support column, bolt isotructure, pull up the handle when the user, rotate the back clockwise until first through-hole and horizontal plane are leveled at ordinary times, rotate handrail and the support column at the front and the back and can make back and stop collar break away from, make its free rotation and fold behind the pull-up second fixture block, device height after folding reduces, can put into bottoms such as cosmetic table, desk, reduce occupation in space, activity space has been increased, convenient to use person's activity is healthy.

To sum up, the device can make the fly leaf jack up the leg support slowly when rotating the back, supports user's shank through the leg support, makes its blood can keep circulating when lying, when avoiding its to rise, and leg paralysis, the device height reduces after folding, can put into bottoms such as vanity table, desk, reduces the occupation in space, has increased activity space, and convenient to use person moves about the health.

Drawings

Fig. 1 is a front view of a hidden type book chair convenient to fold according to the present invention.

Fig. 2 is a schematic side view of a hidden type book chair convenient to fold according to the present invention.

Fig. 3 is a schematic bottom view of the hidden book chair convenient to fold according to the present invention.

Reference numerals; 1. a chair; 2. a backrest; 3. a first rotating shaft; 4. a support pillar; 5. a handrail; 6. a limiting sleeve; 7. a first spring; 8. a first clamping block; 9. a handle; 10. connecting columns; 11. a first stopper; 12. a second limiting block; 13. a second rotating shaft; 14. a first crankshaft; 15. a second fixture block; 16. a bolt; 17. a second spring; 18. a movable plate; 19. a leg support.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the conveniently-folded hidden book chair provided by the utility model comprises a chair 1, wherein the front and back of the chair 1 are both provided with a first rotating shaft 3, the outer ring of the first rotating shaft 3 is rotatably connected with a support column 4, one end of the support column 4 far away from the first rotating shaft 3 is hinged with a handrail 5, the handrail 5 can rotate under the support of the support column 4, the outer ring of the handrail 5 is slidably sleeved with a limit sleeve 6, the top of the limit sleeve 6 is slidably sleeved with a connecting column 10, the top of the connecting column 10 is fixedly provided with a handle 9, the bottom of the handle 9 is fixedly provided with a first spring 7 sleeved on the outer ring of the connecting column 10, one end of the first spring 7 far away from the handle 9 is fixedly connected with the limit sleeve 6, the first spring 7 can reset the first clamping block 8 through the handle 9, the bottom of the connecting column 10 is fixedly provided with a first clamping block 8, the left end of the limit sleeve 6 is fixedly provided with a first limiting block 11, a second rotating shaft 13 is arranged on the left side of the chair 1, the outer ring of the second rotating shaft 13 is rotatably connected with a backrest 2, second limiting blocks 12 are arranged on the front surface and the back surface of the backrest 2, a first crankshaft 14 and a second crankshaft are fixedly arranged at the bottom of the chair 1, the first crankshaft 14 provides support for a first gear, a second clamping block 15 is slidably sleeved on the outer ring of the first crankshaft 14, a plurality of bolts 16 are fixedly arranged on the back of the second clamping block 15, a second spring 17 sleeved on the outer ring of the first crankshaft 14 is fixedly arranged on the back of the second clamping block 15, a movable plate 18 is slidably connected at the bottom of the chair 1, the movable plate 18 can move rightwards to jack up a leg support 19, a leg support 19 is rotatably connected at the right side of the chair 1, a first ratchet 5 is arranged at the top of the armrest, a second clamping block 8 is arranged at the bottom of the first clamping block, the first ratchet is engaged with the second ratchet, the first limiting block 11 is a sphere, spherical clamping grooves are formed in two sides of the second limiting blocks 12, the spherical clamping groove limits the limiting sleeve 6 through the first limiting block 11, one side, away from each other, of the second limiting block 12 is provided with a first through hole which penetrates through and extends to the spherical clamping groove, the outer ring of the second rotating shaft 13 is rotatably sleeved with a first belt pulley, the bottom of the chair 1 is fixedly provided with a second crankshaft, the outer ring of the second crankshaft is rotatably connected with a second belt pulley, the first belt pulley drives the second belt pulley to rotate through a belt, the first belt pulley is connected with the second belt pulley through a belt, the front surface and the back surface of the second belt pulley are respectively welded with a second gear which is rotatably sleeved on the outer ring of the second crankshaft, the second gear is meshed with the first gear, one end, away from the second clamping block 15, of the second spring 17 is fixedly connected with the front surface of the first gear, the top of the chair 1 is provided with a cushion which can enable a user to sit more comfortably, the bottom of the movable plate 18 is provided with first teeth, the first gear is meshed with the first teeth, the front surface of the first gear is provided with a slot corresponding to the bolt 16.

In the utility model, when a user wants to change sitting posture into lying posture, the handle 9 is pulled up to disengage the first ratchet and the second ratchet, so that the position-limiting sleeve 6 can slide leftwards, and further the user can directly drive the backrest 2 to rotate leftwards, so that the included angle between the backrest 2 and the upper surface of the chair 1 is reduced, when the user feels the angle is proper, the handle 9 is loosened, under the elastic action of the first spring 7, the handle 9 drives the first clamping block 8 to reset through the connecting column 10, the first clamping block 8 limits the position of the position-limiting sleeve 6 and the armrest 5 through the second ratchet, meanwhile, the first limiting block 11 at the left end of the position-limiting sleeve 6 limits the inclined backrest through the spherical clamping groove at the left side of the second limiting block 12, meanwhile, the backrest 2 rotates to drive the first belt pulley through the second rotating shaft 13, and the first belt pulley rotates the second gear through the second belt pulley, the second gear enables the movable plate 18 to move rightwards through the first gear meshed with the second gear, the movable plate 18 moving rightwards can slowly jack up the leg support 19, and the leg support 19 supports the legs of a user, so that blood can be kept flowing when the user lies, and paralysis of the legs is avoided when the user gets up;

when the user wants to fold the device and receive and release, pull up handle 9, with back 2 clockwise rotation until first through-hole flushes with the horizontal plane, with positive handrail 5 and support column 4 anticlockwise rotation this moment, handrail 5 and support column 4 clockwise rotation at the back, can make stop collar 6 break away from with second stopper 12, loosen handle 9 after breaking away from, make support column 4, handrail 5 and backplate 2 free rotation, pull up second fixture block 15 simultaneously, make bolt 16 break away from with the slot, make leg rest 19 rise through fly leaf 18 when preventing the backplate free rotation, lead to can not leg rest 19 complete folding, device height after folding reduces, can put into bottoms such as cosmetic table, desk, reduce the occupation of space, activity space has been increased, the user's of being convenient for moves about the health.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.

Claims

1. The utility model provides a convenient folding hidden book chair, includes chair (1), its characterized in that, the front and the back of chair (1) all are provided with first pivot (3), the outer lane of first pivot (3) rotates and is connected with support column (4), the one end that first pivot (3) were kept away from in support column (4) articulates there is handrail (5), stop collar (6) have been cup jointed in the outer lane slip of handrail (5), spliced pole (10) have been cup jointed in the top slip of stop collar (6), the top fixed mounting of spliced pole (10) has handle (9), the bottom fixed mounting of handle (9) has first spring (7) of cover establishing in spliced pole (10) outer lane, the one end and stop collar (6) fixed connection of handle (9) are kept away from in first spring (7), the bottom fixed mounting of spliced pole (10) has first fixture block (8), the left end fixed mounting of stop collar (6) has first stopper (11), the left side of chair (1) is provided with second pivot (13), the outer lane of second pivot (13) rotates and is connected with back (2), the front and the back of back (2) all are provided with second stopper (12), the bottom fixed mounting of chair (1) has first bent axle (14) and second bent axle, second fixture block (15) have been cup jointed in the outer lane slip of first bent axle (14), the back fixed mounting of second fixture block (15) has a plurality of bolts (16), the back fixed mounting of second fixture block (15) has the cover to establish second spring (17) in first bent axle (14) outer lane, the bottom sliding connection of chair (1) has fly leaf (18), the right side rotation of chair (1) is connected with leg rest (19).

2. The hidden type book chair convenient to fold as claimed in claim 1, wherein the top of the armrest (5) is provided with a first ratchet, the bottom of the first block (8) is provided with a second ratchet, and the first ratchet is engaged with the second ratchet.

3. The hidden type book chair convenient to fold as claimed in claim 1, wherein the first limiting block (11) is a sphere, the two sides of the second limiting block (12) are both provided with spherical clamping grooves, and the sides of the second limiting block (12) far away from each other are both provided with first through holes penetrating through and extending to the spherical clamping grooves.

4. The hidden type book chair convenient to fold as claimed in claim 1, wherein a first belt pulley is rotatably sleeved on an outer ring of the second rotating shaft (13), a second crankshaft is fixedly mounted at the bottom of the chair (1), a second belt pulley is rotatably connected to an outer ring of the second crankshaft, the first belt pulley and the second belt pulley are connected through a belt, a second gear rotatably sleeved on an outer ring of the second crankshaft is welded on each of the front surface and the back surface of the second belt pulley, and the second gear is meshed with the first gear.

5. The hidden type book chair convenient to fold as claimed in claim 1, wherein one end of the second spring (17) far away from the second block (15) is fixedly connected with the front surface of the first gear, and a cushion is arranged on the top of the chair (1).

6. The hidden type book chair convenient to fold as claimed in claim 4, wherein the bottom of the movable plate (18) is provided with a first tooth, the first gear is engaged with the first tooth, and the front surface of the first gear is provided with a slot corresponding to the bolt (16).