CN212815349U

CN212815349U - Full-adjustable backrest chair

Info

Publication number: CN212815349U
Application number: CN201821040046.6U
Authority: CN
Inventors: 李秀忠
Original assignee: Foshan Polytechnic
Current assignee: Foshan Polytechnic
Priority date: 2018-07-02
Filing date: 2018-07-02
Publication date: 2021-03-30
Anticipated expiration: 2028-07-02

Abstract

The utility model discloses a furniture device, in particular to full adjustable back chair, it is including the chair foot that is vertical setting, the seat of being connected with the upper end of chair foot, the back of the chair of being connected with the seat, the setting around the seat is, the back of the chair is connected with the rear portion of seat, the back of the chair body that the back of the chair set up about a plurality of, the fixed plate that sets up about two, interval arrangement sets up about a plurality of back of the chair body, the lower extreme of two fixed plates is connected with the rear portion of seat, two fixed plates set up both ends about a plurality of back of the chair body respectively, two fixed plates all are equipped with the adjustment mechanism of the fore-and-aft distance of every back of the chair body of can the independent control. The scheme provides a novel full-adjustable backrest chair, which can enable the waist, the back, the neck and the head of a person to be tightly attached to a chair back, and each part reaches the most comfortable state, thereby solving the problem that the chair back of the current chair makes the waist or the back or the neck or the head uncomfortable when the person sits on the chair back.

Description

Full-adjustable backrest chair

Technical Field

The utility model relates to the field of furniture, in particular to a full adjustable backrest chair.

Background

The backrest of the existing chair on the market is two types, namely non-adjustable and adjustable, the adjusting function of the adjustable backrest type chair is mainly only that the inclination of the headrest and the whole chair back is adjustable, so that the waist, back, neck, head and other parts of a person cannot be completely attached to the chair back, the waist, back, neck and head parts of the person are uncomfortable after the chair is seated for a long time, and lumbar vertebra and cervical spondylosis can be caused after the chair is worn for a long time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the novel full-adjustable backrest chair is provided by combining the prior art, the waist, the back, the neck and the head of a person can be tightly attached to the chair back, and all parts reach the most comfortable state, so that the problem that the waist, the back, the neck or the head of the person sitting on the chair back of the existing chair is uncomfortable is solved.

The utility model provides a solution of its technical problem is: the utility model provides a full adjustable back chair, its chair foot that is vertical setting, the seat of being connected with the upper end of chair foot, the back of the chair of being connected with the seat, the seat be set up around being, the back of the chair be connected with the rear portion of seat, the back of the chair include the fixed plate that sets up about the back of the chair body that sets up about a plurality of, two, a plurality of the back of the chair body about interval arrangement set up, two the lower extreme of fixed plate be connected with the rear portion of seat, two the fixed plate set up respectively at the both ends of controlling of a plurality of back of the chair body, two the fixed plate all be equipped with the adjustment mechanism of the distance around the every back of the chair body of can the independent regulation, two the fixed plate respectively through the tip swing joint of adjustment mechanism and a plurality of back of the chair body.

As a further improvement of the above technical solution, the adjusting mechanism;

comprises two vertically arranged sliding bars, a plurality of locking blocks connected with the two sliding bars, a plurality of supporting rods connected with the chair back body in a one-to-one correspondence manner, and a plurality of springs arranged in the front and back, wherein the locking blocks, the springs and the supporting rods are connected in a one-to-one correspondence manner, the two sliding bars are arranged in a relatively parallel manner, the two sliding bars and the fixed plate are movably connected from top to bottom, the plurality of locking blocks are arranged between the two sliding bars at intervals from top to bottom, the supporting rods are fixedly connected with the chair back body, the front ends of the springs are connected with the supporting rods, the rear ends of the springs are connected with the fixed plate, so that the springs provide forward thrust for the supporting rods, the locking blocks are provided with a plurality of positioning grooves arranged at intervals from front to back, the supporting rods are detachably connected with the positioning grooves, and the positioning of the chair back body in the, one of the sliding strips is provided with a rack which is arranged up and down, a gear which is meshed with the rack for transmission, and a handle which is connected with the gear, wherein the gear is connected with the fixed plate through a rotating shaft, and the handle can control the rotation of the gear, so that the gear drives the sliding strip to move up and down, and the supporting rod is clutched on the positioning groove.

As a further improvement of the above technical solution, two of the sliding bars are provided with a plurality of strip-shaped sliding grooves, the sliding grooves are arranged at intervals from top to bottom, the sliding grooves are provided with guide posts, the guide posts are connected with the sliding grooves in a sliding manner, and the guide posts are fixedly connected with the fixing plate.

As a further improvement of the technical scheme, the sliding grooves are connected with the supporting rods in a one-to-one correspondence mode, the sliding strips are connected with connecting rods between two guide posts corresponding to the sliding strips in the front and back, the connecting rods are arranged in the front and back mode, the spring sleeves are arranged on the connecting rods, the rear ends of the springs are abutted to the guide posts, and the front ends of the springs are abutted to the supporting rods.

As a further improvement of the above technical solution, the two sliding bars are provided with a rack and a gear, the racks on the two sliding bars are oppositely arranged on the inner wall surface of the sliding bars, the racks are arranged on the lower part of the sliding bars, the gear on each rack is arranged between the two sliding bars, the gears on the two racks are engaged with each other, one handle is provided, and the handle is connected with one of the gears.

As a further improvement of the technical scheme, the chair legs are provided with height regulators which can regulate the height of the chair seat.

As a further improvement of the technical scheme, the left side and the right side of the chair surface are respectively provided with a handrail which is arranged in the front and the back, the front end of each handrail is fixedly connected with the side wall of the chair surface, and the rear end of each handrail is fixedly connected with the fixing plate.

As a further improvement of the technical scheme, the lower end of the chair leg is connected with a pulley yoke, the pulley yoke is provided with a plurality of pulley bars which are arranged in a radial manner, the inner ends of the pulley bars are connected with the pulley yoke, and the outer ends of the pulley bars are connected with pulleys.

The utility model has the advantages that: the utility model discloses a back of the chair comprises the fixed plate that sets up about back of the chair body, two that set up about by a plurality of about the back of the chair body, two the fixed plate set up respectively at both ends about a plurality of back of the chair body, every back of the chair body is independently adjustable, the fixed plate passes through a plurality of back of the chair bodies of adjustment mechanism control, the fore-and-aft distance of every back of the chair body can be adjusted alone to adjustment mechanism, let the back of the chair is hugged closely to people's waist, back of the body, neck, head, each position reaches the most comfortable state to solve the back of the chair people of present chair and sit and make waist or back of the body or.

The utility model is used for: furniture such as seats and sofas.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

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

fig. 2 is a schematic structural diagram of an adjusting mechanism according to an embodiment of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1-2, the embodiment of the present invention: the utility model provides a full adjustable backrest chair, its is including the chair foot 1 that is vertical setting, seat 2 of being connected with the upper end of chair foot 1, the back of the chair 3 of being connected with seat 2, seat 2 set up around being, the back of the chair 3 be connected with the rear portion of seat 2, the back of the chair 3 include the back of the chair body 31 that sets up about a plurality of, two fixed plate 32 that set up about two, a plurality of back of the chair body 31 interval arrangement sets up, two about the back of the chair body 31 the lower extreme of fixed plate 32 be connected with the rear portion of seat 2, two fixed plate 32 set up respectively at the both ends about a plurality of back of the chair body 31, two fixed plate 32 all be equipped with the adjustment mechanism 33 that can adjust the fore-and-aft distance of every back of the chair body 31 alone, two fixed plate 32 respectively through the tip swing joint of adjustment mechanism 33 and a plurality of back of the chair body 31. The back of the chair 3 by a plurality of about the back of the chair body 31 that sets up, two fixed plate 32 that set up about two constitute, two fixed plate 32 set up both ends about a plurality of back of the chair body 31 respectively, every back of the chair body 31 is independent adjustable, fixed plate 32 passes through a plurality of back of the chair bodies 31 of adjustment mechanism 33 control, adjustment mechanism 33 can adjust the fore-and-aft distance of every back of the chair body 31 alone to let the back of the chair is hugged closely to people's waist, back, neck, head, each position reaches the most comfortable state, thereby solve the back of the chair people of present chair and sit the situation that makes waist or back or neck or head uncomfortable.

Further, as a preferred embodiment, the adjusting mechanism 33;

including the bracing piece 333 that the draw runner 331, a plurality of that two vertical settings are connected with two draw runners 331, the spring 334 that sets up around a plurality of and the bracing piece 333 that the back of the chair body 31 one-to-one is connected, a plurality of locking piece 332, spring 334 and bracing piece 333 one-to-one be connected, two draw runner 331 be relative parallel arrangement, two draw runner 331 and fixed plate 32 swing joint from top to bottom, a plurality of locking piece 332 is interval arrangement from top to bottom and sets up between two draw runners 331, bracing piece 333 and the back of the chair body 31 fixed connection, spring 334's front end and bracing piece 333 be connected, spring 334's rear end and fixed plate 32 be connected for spring 334 provide a forward thrust for the bracing piece, locking piece 332 be equipped with a plurality of interval arrangement's constant head tank 335 around the setting, bracing piece 333 and constant head tank 335 releasable connection, therefore, the back of the chair body 31 is positioned in the front and rear direction, one of the sliding bars 331 is provided with a rack 336 arranged up and down, a gear 337 meshed with the rack 336 for transmission, and a handle 3311 connected with the gear 337, the gear 337 is connected with the fixed plate 32 through a rotating shaft, the handle 3311 can control the rotation of the gear 337, so that the gear 337 drives the sliding bar 331 to move up and down, and the supporting rod 333 realizes the clutch on the positioning groove 335. Firstly, the gear 337 is rotated by the handle 3311, the gear 337 drives the slide 331 to move down, the slide 331 drives the locking block 332 to move down, so that the positioning slot 335 is separated from the support rod 333, the support rod 333 pushes the back body 31 to the foremost end through the spring 334, at this time, the person tightly attaches to each back body 31 through the back and applies force to move each back body 31 backwards to different degrees, each back body 31 tightly attaches to the waist, back, neck and head of the person when the person is comfortable, the gear 337 is reversely rotated by the handle 3311, the gear 337 drives the slide 331 to move up, the slide 331 drives the locking block 332 to move up, so that the positioning slot 335 is engaged with the support rod 333, and each back body 31 is locked.

Further as a preferred embodiment, two of the sliding bars 331 are respectively provided with a plurality of strip-shaped sliding grooves 338, the sliding grooves 338 are arranged at intervals up and down, the sliding grooves 338 are provided with guiding posts 339, the guiding posts 339 are slidably connected with the sliding grooves 338, and the guiding posts 339 are fixedly connected with the fixing plate 32. Through the guide of the sliding groove 338 and the guide column 339, the up-and-down movement of the sliding strip 331 is more accurate, the sliding strip 331 is prevented from deviating from the limited moving direction, the supporting rod 333 cannot be meshed with the positioning groove 335, and the reliability of the adjusting mechanism 33 is improved.

Further as a preferred embodiment, a plurality of the sliding grooves 338 are connected with the supporting rods 333 in a one-to-one correspondence manner, a connecting rod 3310 is connected between two guiding posts 339 corresponding to the front and the rear of the two sliding strips 331, the connecting rod 3310 is arranged in a front-to-back manner, the spring 334 is sleeved on the connecting rod 3310, the rear end of the spring 334 is abutted against the guiding posts 339, and the front end of the spring 334 is abutted against the supporting rods 333. The spring 334 is sleeved on the connecting rod 3310 arranged in the front and rear direction, so that the acting force of the spring 334 on the seat back body 31 is always kept in the front and rear direction, the moving stability of each seat back body 31 is improved, the connecting mechanism is prevented from being damaged due to uneven stress of the seat back body 31, and the reliability of the adjusting mechanism 33 is further improved.

Further as a preferred embodiment, two of the sliding strips 331 are provided with a rack 336 and a gear 337, the racks 336 on the two sliding strips 331 are oppositely arranged on the inner wall surface of the sliding strip 331, the racks 336 are arranged at the lower part of the sliding strip 331, the gear 337 on each rack 336 is arranged between the two sliding strips 331, the gears 337 on the two racks 336 are engaged with each other, one of the handles 3311 is provided, and the handle 3311 is connected with one of the gears 337. Through the intermeshing between the gears 337 and the meshing of the gears 337 and the rack 336, only one of the gears 337 needs to be adjusted by one of the handles 3311, facilitating the operation of the user, and also improving the stability of the adjustment mechanism 33.

In a further preferred embodiment, the chair leg 1 is provided with a height adjuster 11, and the height adjuster 11 can adjust the height of the chair seat 2. The height of the chair seat 2 is adjusted by the height adjuster 11, so that the use of people with different heights can be met, and the comfort level of a user is improved.

In a further preferred embodiment, armrests 21 are provided at the front and rear of the left and right sides of the seat 2, the front ends of the armrests 21 are fixedly connected to the side walls of the seat 2, and the rear ends of the armrests 21 are fixedly connected to the fixing plates 32. Armrests 21 are provided on the left and right sides of the seat 2, and a user can place the armrests 21 thereon, thereby further improving the comfort of the user.

Further as a preferred embodiment, the lower end of the chair leg 1 is connected with a pulley yoke 12, the pulley yoke 12 is provided with a plurality of pulley bars 13 arranged in a radial manner, the inner ends of the pulley bars 13 are connected with the pulley yoke 12, and the outer ends of the pulley bars 13 are connected with pulleys 14. The stability of the chair is improved by the pulley rods 13 which are radially arranged, the pulleys 14 are connected to the outer ends of the pulley rods 13, and when the chair is moved, the chair only needs to be pushed without being moved, so that the chair is convenient to transport.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a full adjustable backrest chair, its seat (2) of being connected including the chair foot (1) that is vertical setting, with the upper end of chair foot (1), back of the chair (3) of being connected with seat (2), seat (2) set up around being, back of the chair (3) be connected its characterized in that with the rear portion of seat (2): the chair back (3) comprises a plurality of chair back bodies (31) arranged left and right and two fixing plates (32) arranged up and down, the chair back bodies (31) are arranged up and down at intervals, the lower ends of the two fixing plates (32) are connected with the rear part of the chair surface (2), the two fixing plates (32) are respectively arranged at the left end and the right end of the chair back bodies (31), the two fixing plates (32) are respectively provided with an adjusting mechanism (33) capable of independently adjusting the front-back distance of each chair back body (31), the two fixing plates (32) are respectively movably connected with the end parts of the chair back bodies (31) through the adjusting mechanisms (33), and the adjusting mechanisms (33); including the bracing piece (333) that the draw runner (331), a plurality of and two draw runners (331) are connected, the spring (334) that sets up around a plurality of bracing piece (333), a plurality of that a plurality of and the back of the chair body (31) one-to-one are connected, a plurality of locking piece (332), spring (334) and bracing piece (333) one-to-one are connected, two draw runner (331) be relative parallel arrangement, two draw runner (331) and fixed plate (32) swing joint from top to bottom, a plurality of locking piece (332) are interval arrangement from top to bottom and set up between two draw runners (331), bracing piece (333) and back of the chair body (31) fixed connection, the front end and the bracing piece (333) of spring (334) be connected, the rear end and fixed plate (32) of spring (334) be connected for spring (334) provide a forward thrust for bracing piece (333), the locking block (332) is provided with a plurality of positioning grooves (335) which are arranged at intervals front and back, the supporting rod (333) is detachably connected with the positioning grooves (335), so that the back of the chair body (31) is positioned in the front and back direction, one sliding strip (331) is provided with a rack (336) which is arranged up and down, a gear (337) which is meshed with the rack (336) and is driven, and a handle (3311) which is connected with the gear (337), the gear (337) is connected with the fixing plate (32) through a rotating shaft, the handle (3311) can control the rotation of the gear (337), so that the gear (337) drives the sliding strip (331) to move up and down, the supporting rod (333) is clutched on the positioning grooves (335), two sliding strips (331) are provided with a plurality of strip-shaped sliding grooves (338), and the sliding grooves (338) are arranged at intervals up and down, spout (338) be equipped with guide post (339), guide post (339) and spout (338) sliding connection, guide post (339) and fixed plate (32) fixed connection, a plurality of spout (338) be connected with bracing piece (333) one-to-one, two draw runner (331) go up and be connected with connecting rod (3310) between two guide post (339) that correspond around, connecting rod (3310) be the setting around, spring (334) suit on connecting rod (3310), the rear end and the guide post (339) butt of spring (334), the front end and bracing piece (333) butt of spring (334).

2. A fully adjustable back rest chair according to claim 1 wherein: two draw runner (331) all be equipped with rack (336), gear (337), two draw runner (331) on rack (336) set up on the internal wall face of draw runner (331) relatively, rack (336) set up the lower part in draw runner (331), gear (337) on every rack (336) all set up between two draw runner (331), gear (337) intermeshing on two rack (336), handle (3311) be equipped with one, handle (3311) is connected with one of them gear (337).

3. A fully adjustable back rest chair according to claim 1 wherein: the chair is characterized in that the chair legs (1) are provided with height regulators (11), and the height regulators (11) can regulate the height of the chair seat (2).

4. A fully adjustable back rest chair according to claim 1 wherein: the left side and the right side of the chair surface (2) are respectively provided with a handrail (21) which is arranged in the front and at the back, the front end of each handrail (21) is fixedly connected with the side wall of the chair surface (2), and the rear end of each handrail (21) is fixedly connected with the fixing plate (32).

5. A fully adjustable back rest chair according to claim 1 wherein: the lower end of the chair leg (1) is connected with a pulley yoke (12), the pulley yoke (12) is provided with a plurality of pulley bars (13) which are arranged in a radial manner, the inner ends of the pulley bars (13) are connected with the pulley yoke (12), and the outer ends of the pulley bars (13) are connected with pulleys (14).