CN219578567U

CN219578567U - Multifunctional office chair

Info

Publication number: CN219578567U
Application number: CN202320824498.8U
Authority: CN
Inventors: 王飞
Original assignee: Suzhou Chuanghezhitu Technology Service Co ltd
Current assignee: Suzhou Chuanghezhitu Technology Service Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-08-25
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a multifunctional office chair, which belongs to the technical field of office chairs and comprises a seat plate, wherein one end of the seat plate is rotationally connected with a backrest, and one end of the seat plate, which is far away from the backrest, is rotationally connected with a leg rest; according to the utility model, when a user needs to lie down for rest, the locking mechanism is used for unlocking the rotating shaft, then the backrest is pushed to rotate anticlockwise by the user back, the backrest is unfolded, the first reversing gear is driven to rotate at the same time by the backrest, the rotating shaft is driven to rotate by the first reversing gear through the second reversing gear, the leg rest is driven to rotate anticlockwise by the first reversing gear and the second reversing gear at the other end of the rotating shaft, the leg rest is unfolded synchronously, after the required angle is reached, the rotating shaft is locked by the locking mechanism, the unfolding angle of the backrest and the leg rest can be fixed, and the backrest can be unfolded by the aid of the arranged expandable office chair, so that the user can lie down for rest, and the practicability of the office chair is effectively improved.

Description

Multifunctional office chair

Technical Field

The utility model relates to the technical field of office chairs, in particular to a multifunctional office chair.

Background

The definition of office chair in the narrow sense refers to a back rest chair in which a person sits while performing a tabletop work in a sitting posture, and is broadly defined as all chairs used in offices, including staff chairs, conference chairs, visitor chairs, training chairs, and the like.

Current office chairs, such as publication No.: the multifunctional office chair provided by CN214963950U has the beneficial effects that the multifunctional office chair can independently support the waist of a user, achieves the purpose of protecting the waist, can provide a placement position for the feet of the user, and can store a certain amount of articles.

The existing multifunctional office chair can achieve the purpose of protecting the waist, and can store a certain amount of articles, but when a worker needs to rest, the office chair cannot be unfolded to allow the worker to lie down for rest, and has great limitation and inconvenient use, so that the multifunctional office chair is provided to solve the problem.

Disclosure of Invention

The utility model aims to provide a multifunctional office chair, which achieves the purposes that the office chair can be unfolded through the arrangement of the office chair, so that a worker can lie down for rest, and the practicability of the office chair is effectively improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a multifunctional office chair, which comprises a seat board, wherein one end of the seat board is rotationally connected with a backrest, one end of the seat board far away from the backrest is rotationally connected with a leg support, wherein,

the end parts of the backrest and the leg support, which are close to the outer side of the seat board, are respectively fixed with a first reversing gear, the two sides of the seat board are symmetrically and rotatably connected with rotating shafts, and the end parts of the rotating shafts, which correspond to the first reversing gears, are fixed with second reversing gears;

the seat board is fixed with the protection casing near the outside of first switching-over gear and second switching-over gear, the pivot locks through locking mechanism, the seat board supports through supporting mechanism.

Preferably, the locking mechanism comprises a locking gear, the locking gear is fixed in the middle of the rotating shaft, a pull rod groove is formed in the outer side of the protective cover, corresponding to the locking gear, of the protective cover in a penetrating mode, a pull rod penetrates through the pull rod groove, a top plate is fixed at the end portion, located in the protective cover, of the pull rod, locking teeth are fixed on one side, close to the locking gear, of the top plate at equal intervals, and a first spring is sleeved on the pull rod between the top plate and the protective cover.

Preferably, the pull rod is rectangular and columnar, and the outer dimension of the pull rod is matched with the inner dimension of the pull rod groove.

Preferably, the supporting mechanism comprises supporting legs, the bottom four corners symmetry of bedplate is fixed with the landing leg, rotate on the landing leg of back below and be connected with the auxiliary stand, the auxiliary stand rotates with the outside that the landing leg is close to the below and is connected, the universal wheel is installed to the below that the landing leg was kept away from to the auxiliary stand, the auxiliary stand overlaps on the landing leg through rotating the groove, the locking groove has been seted up to the bilateral symmetry that the landing leg is located the rotation inslot, the auxiliary stand is close to the inner wall of rotation groove one side and has been seted up the lock pole groove, the auxiliary stand is close to the top intercommunication in lock pole groove has the push rod groove, the internally mounted in lock pole groove has the second spring, the second spring is close to the open side in lock pole groove and installs the locking lever, one side that the locking lever is close to the push rod groove is fixed with the push rod.

Preferably, the locking rod is a cylinder, and the outer diameter of the locking rod is matched with the inner diameter of the locking groove.

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

1. according to the utility model, when a user needs to lie down for rest, the locking mechanism is used for unlocking the rotating shaft, then the backrest is pushed to rotate anticlockwise by the user back, the backrest is unfolded, the first reversing gear is driven to rotate at the same time by the backrest, the rotating shaft is driven to rotate by the first reversing gear through the second reversing gear, the leg rest is driven to rotate anticlockwise by the first reversing gear and the second reversing gear at the other end of the rotating shaft, the leg rest is unfolded synchronously, after the required angle is reached, the rotating shaft is locked by the locking mechanism, the unfolding angle of the backrest and the leg rest can be fixed, and the backrest can be unfolded by the aid of the arranged expandable office chair, so that the user can lie down for rest, and the practicability of the office chair is effectively improved.

2. According to the utility model, when the angle between the backrest and the leg rest is required to be adjusted, the pull rod is pulled, so that the top plate overcomes the elasticity of the first spring to drive the locking gear to be far away from the locking gear, the rotating shaft can rotate, when the angle between the backrest and the leg rest is required to be fixed, the pull rod is loosened, the first spring pushes the top plate to move towards the locking gear, so that the locking gear is meshed with the locking gear, the locking gear is locked with the rotating shaft through the locking gear, and the backrest and the leg rest are prevented from shaking.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of the seat plate of the present utility model;

FIG. 3 is a schematic view of a partial enlarged structure of the portion A in FIG. 1 according to the present utility model;

FIG. 4 is a schematic view of a partially enlarged structure of the present utility model at B in FIG. 1;

fig. 5 is a schematic view of a partial enlarged structure at C in fig. 2 according to the present utility model.

In the figure: 1. a seat plate; 2. a backrest; 3. a leg rest; 4. a first reversing gear; 5. a rotating shaft; 6. a second reversing gear; 7. a protective cover; 8. locking the gear; 9. a pull rod groove; 10. a pull rod; 11. a top plate; 12. locking teeth; 13. a first spring; 14. a support leg; 15. an auxiliary bracket; 16. a universal wheel; 17. a rotating groove; 18. a locking groove; 19. a lock rod groove; 20. a push rod groove; 21. a second spring; 22. a lock lever; 23. a push rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

referring to fig. 1 to 5, the present utility model provides a technical solution: a multifunctional office chair comprises a seat board 1, a backrest 2 is rotatably connected at one end of the seat board 1, a leg support 3 is rotatably connected at one end of the seat board 1 far away from the backrest 2,

the end parts of the backrest 2 and the leg rest 3, which are close to the outer side of the seat board 1, are respectively fixed with a first reversing gear 4, the two sides of the seat board 1 are symmetrically and rotatably connected with rotating shafts 5, and the end parts of the rotating shafts 5, which correspond to the first reversing gears 4, are fixed with second reversing gears 6;

the seat board 1 is fixed with a protective cover 7 near the outer sides of the first reversing gear 4 and the second reversing gear 6, the rotating shaft 5 is locked by a locking mechanism, and the seat board 1 is supported by a supporting mechanism;

when the user needs to lie down for rest, the locking to the rotating shaft 5 is released through the locking mechanism, then the back of the user pushes the backrest 2 to rotate anticlockwise, the backrest 2 is unfolded, the backrest 2 drives the first reversing gear 4 to rotate simultaneously, the first reversing gear 4 drives the rotating shaft 5 to rotate through the second reversing gear 6, the rotating shaft 5 drives the leg support 3 to rotate anticlockwise through the first reversing gear 4 and the second reversing gear 6 at the other end, the leg support 3 is unfolded synchronously, after the required angle is reached, the rotating shaft 5 is locked through the locking mechanism, the unfolding angle of the backrest 2 and the leg support 3 can be fixed, and the user can unfold the backrest through the arranged extensible office chair so that the user can lie down for rest, and the practicability of the office chair is improved effectively.

Referring to fig. 1 to 5, the locking mechanism includes a locking gear 8, the middle of the rotating shaft 5 is fixed with the locking gear 8, a pull rod groove 9 penetrates through the outer side of the protecting cover 7 corresponding to the locking gear 8, a pull rod 10 penetrates through the inner side of the pull rod groove 9, a top plate 11 is fixed at the end of the pull rod 10 located in the protecting cover 7, locking teeth 12 are equidistantly fixed on one side of the top plate 11 close to the locking gear 8, a first spring 13 is sleeved on the pull rod 10 between the top plate 11 and the protecting cover 7, the pull rod 10 is rectangular and is matched with the inner dimension of the pull rod groove 9, when the angle between the backrest 2 and the leg rest 3 needs to be adjusted, the pull rod 10 is pulled, the top plate 11 overcomes the elasticity of the first spring 13 to drive the locking teeth 12 to be far away from the locking gear 8, so that the rotating shaft 5 can rotate, when the angle between the backrest 2 and the leg rest 3 needs to be fixed, the first spring 13 pushes the top plate 11 to move towards the locking gear 8, so that the locking gear 8 is meshed with the locking teeth 12, and the locking gears 8 and 5 are locked by the locking teeth 12, and the rotating shaft 2 is prevented from shaking.

Referring to fig. 1 to 5, the supporting mechanism comprises a supporting leg 14, the supporting leg 14 is symmetrically fixed at four corners of the bottom of the seat board 1, an auxiliary bracket 15 is rotatably connected to the supporting leg 14 below the backrest 2, the auxiliary bracket 15 is rotatably connected to the outer side of the supporting leg 14 close to the lower side, a universal wheel 16 is arranged below the auxiliary bracket 15 far from the supporting leg 14, the auxiliary bracket 15 is sleeved on the supporting leg 14 through a rotating groove 17, locking grooves 18 are symmetrically formed in two sides of the supporting leg 14 positioned in the rotating groove 17, a locking rod groove 19 is formed in the inner wall of the auxiliary bracket 15 close to one side of the rotating groove 17, a push rod groove 20 is communicated with the top of the auxiliary bracket 15 close to the locking rod groove 19, a second spring 21 is arranged in the locking rod groove 19, a locking rod 22 is arranged on the opening side of the second spring 21 close to the locking rod groove 19, A push rod 23 is fixed on one side of the lock rod 22, which is close to the push rod groove 20, the lock rod 22 is a cylinder, the outer diameter of the lock rod 22 is matched with the inner diameter of the locking groove 18, before the backrest 2 and the leg rest 3 are unfolded, the lock rod 22 is driven by the push rod 23 to move out of the locking groove 18, so that the auxiliary support 15 can rotate, the auxiliary support 15 is unfolded, when the lock rod 22 is aligned with the locking groove 18 on the other side, the second spring 21 pushes the lock rod 22 to be inserted into the locking groove 18, the position of the auxiliary support 15 is fixed, the support range of the support mechanism can be effectively increased through the unfolded auxiliary support 15, the office chair is prevented from being toppled over after a user lies down, and after the office chair is used, the auxiliary support 15 can be folded to the inner side of the supporting leg 14, so that the occupied area is reduced.

Working principle: the multifunctional office chair is characterized in that when a user needs to lie down and rest, the locking of the rotating shaft 5 is released through the locking mechanism, then the back of the user pushes the back 2 to rotate anticlockwise, the back 2 is unfolded, the back 2 drives the first reversing gear 4 to rotate, the first reversing gear 4 drives the rotating shaft 5 to rotate through the second reversing gear 6, the rotating shaft 5 drives the leg rest 3 to rotate anticlockwise through the first reversing gear 4 and the second reversing gear 6 at the other end, the leg rest 3 is synchronously unfolded, after the required angle is reached, the rotating shaft 5 is locked through the locking mechanism, the unfolding angle of the back 2 and the leg rest 3 can be fixed, the user can unfold the chair through the arranged extensible office chair so as to lie down and rest for the staff, the practicability of the office chair is effectively improved, and when the angle of the back 2 and the leg rest 3 needs to be adjusted, the pull rod 10 is pulled, the top plate 11 overcomes the elasticity of the first spring 13 to drive the locking teeth 12 to be far away from the locking gear 8 so that the rotating shaft 5 can rotate, when the angle between the backrest 2 and the leg rest 3 needs to be fixed, the pull rod 10 is released, the first spring 13 pushes the top plate 11 to move towards the locking gear 8 so that the locking gear 8 is meshed with the locking teeth 12, the locking gear 8 and the rotating shaft 5 are locked through the locking teeth 12 to avoid shaking of the backrest 2 and the leg rest 3, before the backrest 2 and the leg rest 3 are unfolded, the push rod 23 drives the lock rod 22 to move out of the locking groove 18 so that the auxiliary bracket 15 can rotate to unfold the auxiliary bracket 15, when the lock rod 22 is aligned with the locking groove 18 on the other side, the second spring 21 pushes the lock rod 22 to be inserted into the locking groove 18 so as to fix the position of the auxiliary bracket 15, the supporting range of the supporting mechanism can be effectively increased through the unfolded auxiliary bracket 15, the office chair is prevented from toppling over after the user lies down, and after the office chair is used, the auxiliary support 15 can be folded to the inner side of the supporting leg 14, so that the occupied area is reduced.

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

Claims

1. The utility model provides a multifunctional office chair, includes bedplate (1), its characterized in that: one end of the seat board (1) is rotationally connected with a backrest (2), one end of the seat board (1) far away from the backrest (2) is rotationally connected with a leg support (3), wherein,

the end parts of the backrest (2) and the leg rest (3) close to the outer side of the seat board (1) are respectively fixed with a first reversing gear (4), two sides of the seat board (1) are symmetrically and rotatably connected with rotating shafts (5), and the end parts of the rotating shafts (5) corresponding to the first reversing gears (4) are fixed with second reversing gears (6);

the seat board (1) is close to the outer sides of the first reversing gear (4) and the second reversing gear (6) and is fixedly provided with a protective cover (7), the rotating shaft (5) is locked through a locking mechanism, and the seat board (1) is supported through a supporting mechanism.

2. The multi-function office chair of claim 1, wherein: the locking mechanism comprises a locking gear (8), the locking gear (8) is fixed in the middle of the rotating shaft (5), a pull rod groove (9) is formed in the outer side of the protective cover (7) corresponding to the locking gear (8), a pull rod (10) is formed in the pull rod groove (9) in a penetrating mode, a top plate (11) is fixed at the end portion of the pull rod (10) located in the protective cover (7), locking teeth (12) are fixed on one side of the top plate (11) close to the locking gear (8) at equal intervals, and a first spring (13) is sleeved on the pull rod (10) between the top plate (11) and the protective cover (7).

3. The multi-function office chair of claim 2, wherein: the pull rod (10) is rectangular and columnar, and the outer dimension of the pull rod (10) is matched with the inner dimension of the pull rod groove (9).

4. The multi-function office chair of claim 1, wherein: the supporting mechanism comprises supporting legs (14), supporting legs (14) are symmetrically fixed to the four corners of the bottom of the seat board (1), auxiliary brackets (15) are rotatably connected to the supporting legs (14) below the backrest (2), the auxiliary brackets (15) are rotatably connected to the outer sides of the supporting legs (14) close to the lower sides, universal wheels (16) are arranged below the auxiliary brackets (15) away from the supporting legs (14), the auxiliary brackets (15) are sleeved on the supporting legs (14) through rotating grooves (17), locking grooves (18) are symmetrically formed in the two sides of the supporting legs (14) located the rotating grooves (17), locking rod grooves (19) are formed in the inner walls of one side of the auxiliary brackets (15) close to the rotating grooves (17), pushing rod grooves (20) are communicated to the tops of the auxiliary brackets (15), second springs (21) are mounted in the inner sides of the locking rod grooves (19), locking rods (22) are mounted on the opening sides of the second springs (21) close to the locking rod grooves (19), and one sides of the locking rods (22) close to the pushing rod grooves (23) are fixed.

5. The multi-function office chair of claim 4 wherein: the lock rod (22) is a cylinder, and the outer diameter of the lock rod (22) is matched with the inner diameter of the locking groove (18).