CN211632486U

CN211632486U - Chair with backrest inclination angle adjusting function

Info

Publication number: CN211632486U
Application number: CN201921731595.2U
Authority: CN
Inventors: 金沈瑄; 刘子玥; 瞿祎; 肖逸云
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-10-09
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a chair with backrest inclination angle adjusting function, which comprises a base, the bottom of base is close to four corners and fixedly provided with the landing leg, the outer wall of base runs through and is provided with the movable groove, be provided with the locking lever in the movable groove, the inner wall that the base is located the movable groove is even fixedly connected with a plurality of parallel locking plates, the one end of base is rotated through the pivot and is connected with the backup plate, the outer wall of backup plate is provided with the waist support mechanism, two lateral walls of backup plate are symmetrically rotated and are connected with the handrail, the handrail is kept away from the one end fixedly connected with support of backup plate, the bottom of handrail runs through and is provided with the switch close to the support; the utility model discloses a set up spring, switch, connecting rod, locking lever and a plurality of locking plates etc. only need both hands to hold between the fingers the switch, can promote the handrail and adjust the backup plate angle of seat, the simple operation, simple structure adjusts effectually.

Description

Chair with backrest inclination angle adjusting function

Technical Field

The utility model relates to a furniture specifically is a chair with back inclination adjustment function.

Background

The chair is a daily life furniture, has handrail and back mostly, but the back is mostly fixed knot to be constructed, can't adjust according to the demand, and the back lacks the support to the waist simultaneously, and the travelling comfort is poor, and the user need purchase the waist by oneself and hold in the palm, otherwise sit the back for a long time and just can lead to the soreness of waist back pain, and the result of use is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chair with back inclination adjustment function to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a chair with a backrest inclination angle adjusting function comprises a base, wherein supporting legs are fixedly arranged at the bottom of the base close to four corners, a movable groove is arranged on the outer wall of the base in a penetrating manner, a lock rod is arranged in the movable groove, a plurality of parallel locking plates are uniformly and fixedly connected to the inner wall of the base in the movable groove, one end of the base is rotatably connected with a backup plate through a rotating shaft, a waist support mechanism is arranged on the outer wall of the backup plate, handrails are symmetrically and rotatably connected to two side walls of the backup plate, a support is fixedly connected to one end of each handrail far away from the backup plate, a switch is arranged at the position of the bottom of each handrail close to the support in a penetrating manner, a plurality of springs are arranged between the inner wall of each handrail and the top of the switch, a connecting rod is fixedly connected to one end of each switch, which is, the two ends of the lock rod penetrate through the matching ring and then are fixedly connected with the bottom of the outer wall of the connecting rod, the top of the base is fixedly connected with a cushion, and the outer wall of the backup plate is fixedly connected with a back cushion.

As a further aspect of the present invention: two outer walls of the base are positioned at two ends of the movable groove and symmetrically provided with two matching grooves, and the matching rings are positioned in the corresponding matching grooves.

As a further aspect of the present invention: waist props mechanism includes that the waist holds in the palm, the waist holds in the palm and is located between cushion and the backup plate, the outer wall center department fixedly connected with threaded rod that the waist held in the palm, threaded connection has box nut through threaded connection in the one end of threaded rod, the outer wall symmetry that the waist held in the palm is provided with two sliders and ejector pad.

As a further aspect of the present invention: the outer wall of backup plate is provided with first mounting groove, the waist holds in the palm and is located first mounting groove, and two spouts and pushing away the groove have been seted up to the outer wall symmetry that the backup plate is located first mounting groove, two the slider is located the spout that corresponds respectively, the screw rod groove that runs through is seted up to the outer wall of backup plate, the threaded rod is located the screw rod inslot, the second mounting groove has been seted up to the outer wall that the backup plate is relative with first mounting groove, plum blossom nut is located the second mounting groove, two the tip of ejector pad passes in pushing away groove back position second mounting groove.

As a further aspect of the present invention: the cross section of the locking plate is in a hook shape, and the locking rod is positioned in a hook-shaped groove of one of the locking plates.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up spring, switch, connecting rod, locking lever and a plurality of locking plates etc. only need both hands to hold between the fingers the switch, can promote the handrail and adjust the backup plate angle of seat, the simple operation, simple structure adjusts effectually.

2. The utility model discloses a set up waist and hold in the palm, threaded rod, ejector pad, plum blossom nut etc. can play effectual supporting role to user's waist, avoid the user to appear the phenomenon of the soreness of waist back pain after sitting for a long time, the height-adjustable who holds in the palm simultaneously waist, applicable in the user of different heights, excellent in use effect.

Drawings

Fig. 1 is a schematic structural view of a chair having a backrest inclination angle adjusting function.

Fig. 2 is a schematic view showing a lock lever of a chair having a backrest inclination angle adjusting function.

Fig. 3 is a schematic structural view of a lumbar support mechanism in a chair having a backrest inclination angle adjusting function.

Fig. 4 is a schematic structural view of a slide groove in a chair having a backrest inclination angle adjusting function.

Wherein, 1, a base; 11. a cushion; 12. a support leg; 2. a backup plate; 21. back cushion; 3. a handrail; 31. a support; 311. matching rings; 32. a spring; 4. a switch; 41. a connecting rod; 42. a lock lever; 5. a movable groove; 51. a mating groove; 52. a locking plate; 6. a lumbar support mechanism; 61. a waist support; 62. a slider; 63. a threaded rod; 64. a double offset ring nut; 65. a push block; 71. a first mounting groove; 72. a chute; 73. a screw channel; 74. a second mounting groove; 75. and (6) pushing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in the embodiment of the present invention, a chair with backrest inclination angle adjusting function comprises a base 1, legs 12 are fixedly disposed near four corners of the bottom of the base 1, a movable groove 5 is disposed through the outer wall of the base 1, a lock rod 42 is disposed in the movable groove 5, a plurality of parallel locking plates 52 are uniformly and fixedly connected to the inner wall of the base 1 located in the movable groove 5, a backrest 2 is rotatably connected to one end of the base 1 via a rotation shaft, a lumbar support mechanism 6 is disposed on the outer wall of the backrest 2, armrests 3 are rotatably connected to two side walls of the backrest 2 symmetrically, a support 31 is fixedly connected to one end of the armrests 3 away from the backrest 2, a switch 4 is disposed near the support 31 at the bottom of the armrests 3, a plurality of springs 32 are disposed between the inner wall of the armrests 3 and the top of the switch 4, and a connecting rod 41, one end of the connecting rod 41 is located in the bracket 31, the bottom end of the connecting rod 41 is provided with a matching ring 311 in a penetrating manner, two ends of the locking rod 42 penetrate through the matching ring 311 and then are fixedly connected with the bottom of the outer wall of the connecting rod 41, the top of the base 1 is fixedly connected with a cushion 11, and the outer wall of the backup plate 2 is fixedly connected with a back cushion 21.

Two outer walls of base 1 are located movable groove 5 both ends symmetry and have seted up two cooperation grooves 51, and cooperation ring 311 is located the cooperation groove 51 that corresponds, through cooperation groove 51 and the atress of the reducible locking lever 42 of the setting of cooperation ring 311 with locking plate 52, makes locking structure more durable.

Waist props mechanism 6 and includes that the waist holds in the palm 61, and waist holds in the palm 61 and is located between back cushion 21 and backup plate 2, and the outer wall center department fixedly connected with threaded rod 63 of waist holds in the palm 61, and threaded connection has box nut 64 through threaded connection the one end of threaded rod 63, and the outer wall symmetry of waist holds in the palm 61 is provided with two sliders 62 and ejector pad 65.

The outer wall of backup plate 2 is provided with first mounting groove 71, waist holds in the palm 61 and is located first mounting groove 71, two spouts 72 and push away groove 75 have been seted up to the outer wall symmetry that backup plate 2 is located first mounting groove 71, two sliders 62 are located corresponding spout 72 respectively, the screw rod groove 73 that runs through has been seted up to the outer wall of backup plate 2, threaded rod 63 is located screw rod groove 73, backup plate 2 has seted up second mounting groove 74 with the outer wall that first mounting groove 71 is relative, box nut 64 is located second mounting groove 74, can realize fixing between waist support 61 and the backup plate 2 through screwing up box nut 64, the tip of two ejector pads 65 passes and pushes away in 75 back second mounting grooves 74 of groove, behind the not hard up box nut 64, the accessible promotes ejector pad 65 and realizes holding in the palm the altitude mixture control of 61 to the waist.

Locking tab 52 has a hook-shaped cross-section and locking bar 42 is positioned within the hook-shaped slot of one of the locking tabs 52.

The utility model discloses a theory of operation is:

when the angle of the backup plate 2 needs to be adjusted, the armrest 3 is held by both hands after sitting, the lock rod 42 is pushed forward, the lock rod 42 is separated from the hooking groove of the locking plate 52 under the driving of the connecting rod 41, the switch 4 is pinched by both hands, the switch 4 compresses the spring 32 and drives the connecting rod 41 to move upwards, the two connecting rods 41 move upwards simultaneously, the lock rod 42 moves to the top of the locking plates 52, the armrest 3 is pushed later, the angle of the backup plate 2 is adjusted, when the proper angle is reached, the switch 4 is loosened by both hands, the lock rod 42 is pushed backwards, and the lock rod 42 is ensured to be clamped into the hooking groove of the locking plate 52 again under the action of the spring 32.

When the height of the waist support 61 needs to be adjusted, the pushing block 65 is pushed up and down according to requirements after the plum blossom nut 64 is loosened, and when the waist support 61 reaches a proper height, the plum blossom nut 64 is screwed down to fix the waist support 61.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A chair with backrest inclination angle adjusting function, includes base (1), its characterized in that: the bottom of the base (1) is fixedly provided with supporting legs (12) close to four corners, the outer wall of the base (1) is provided with a movable groove (5) in a penetrating manner, a lock rod (42) is arranged in the movable groove (5), the inner wall of the base (1) positioned in the movable groove (5) is uniformly and fixedly connected with a plurality of parallel locking plates (52), one end of the base (1) is rotatably connected with a backup plate (2) through a rotating shaft, the outer wall of the backup plate (2) is provided with a waist support mechanism (6), two side walls of the backup plate (2) are symmetrically and rotatably connected with handrails (3), one end of each handrail (3) far away from the backup plate (2) is fixedly connected with a support (31), the bottom of each handrail (3) is provided with a switch (4) close to the support (31) in a penetrating manner, and a plurality of springs (32) are arranged between the inner wall, switch (4) are located one end fixedly connected with connecting rod (41) of handrail (3), the one end of connecting rod (41) is located support (31), the bottom of connecting rod (41) is run through and is provided with cooperation ring (311), the both ends of locking lever (42) pass cooperation ring (311) back and the outer wall bottom fixed connection of connecting rod (41), the top fixedly connected with cushion (11) of base (1), the outer wall fixedly connected with cushion (21) of backup plate (2).

2. A chair having a backrest inclination angle adjusting function according to claim 1, wherein: two outer walls of the base (1) are positioned at two ends of the movable groove (5) and symmetrically provided with two matching grooves (51), and the matching rings (311) are positioned in the corresponding matching grooves (51).

3. A chair having a backrest inclination angle adjusting function according to claim 1, wherein: waist props mechanism (6) including waist support (61), waist support (61) is located between cushion (21) and backup plate (2), the outer wall center fixedly connected with threaded rod (63) of waist support (61), there is box nut (64) one end of threaded rod (63) through threaded connection, the outer wall symmetry that the waist held in the palm (61) is provided with two slider (62) and ejector pad (65).

4. A chair having a backrest inclination angle adjusting function according to claim 3, wherein: the outer wall of backup plate (2) is provided with first mounting groove (71), waist holds in the palm (61) and is located first mounting groove (71), and two spout (72) and push away groove (75) have been seted up to the outer wall symmetry that backup plate (2) are located first mounting groove (71), two slider (62) are located corresponding spout (72) respectively, the screw rod groove (73) that runs through have been seted up to the outer wall of backup plate (2), threaded rod (63) are located screw rod groove (73), second mounting groove (74) have been seted up to backup plate (2) and the outer wall that first mounting groove (71) is relative, plum blossom nut (64) are located second mounting groove (74), two the tip of ejector pad (65) passes and pushes away in groove (75) back position second mounting groove (74).

5. A chair having a backrest inclination angle adjusting function according to claim 1, wherein: the cross section of the locking plate (52) is in a hook shape, and the locking rod (42) is positioned in a hook-shaped groove of one of the locking plates (52).