CN106108451A

CN106108451A - A kind of medicated cushion detachable backrest adjustable student chair

Info

Publication number: CN106108451A
Application number: CN201610785835.1A
Authority: CN
Inventors: 叶芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2016-11-16

Abstract

The invention discloses a kind of medicated cushion detachable backrest adjustable student chair, including seat and backrest, in the middle part of the end face of described seat, there is fixed groove, the bottom surface of fixed groove has multiple location shrinkage pool, medicated cushion is nested in fixed groove, the bottom surface of medicated cushion is fixed with multiple inserted link, inserted link sleeve is in corresponding location shrinkage pool, being bolted with multiple place kick headpin plug on the medial wall of location shrinkage pool, the steel ball of place kick headpin plug stretches out the sidewall of location shrinkage pool and is nested in the locating ring connected in star having on the lateral wall of inserted link；The back side of seat is fixed with regulation lobe, rotary shaft runs through through hole through regulation lobe, the two ends running through through hole are provided with bearing, the outer ring of bearing is fixed on the medial wall running through through hole, rotary shaft is fixed in the inner ring of bearing, the two ends of rotary shaft project through through hole, and the two ends of rotary shaft are fixed with travelling gear；Its medicated cushion dismounting and change is easy to clean, and backrest can realize tilt adjustment, thus meet and use requirement.

Description

A kind of medicated cushion detachable backrest adjustable student chair

Technical field:

The present invention relates to realia technical field, a kind of medicated cushion detachable backrest scalable Raw chair.

Background technology:

The chair of existing Students ' Learning is the most fixed, and backrest cannot be carried out angular adjustment, but, Mei Gexue Raw sitting posture is the most different, and chair is identical, thus makes chair can not be suitable for the requirement of each student, some students Be not appropriate for this backrest, this allow for unconformable student against and uncomfortable, thus affect it and normally use.

And, existing chair is comfortable in order to do, and typically installs medicated cushion on seat, and existing medicated cushion is direct It is fixed on seat, it is impossible to dismounting and change is cleaned, and bothers very much.

Summary of the invention:

The purpose of the present invention is aiming at the deficiency of prior art, and provides a kind of medicated cushion detachable backrest scalable Raw chair, its medicated cushion dismounting and change is easy to clean, and backrest can realize tilt adjustment, thus meets different use requirements.

The technology solution of the present invention is as follows:

A kind of medicated cushion detachable backrest adjustable student chair, including seat and backrest, has in the middle part of the end face of described seat Having fixed groove, the bottom surface of fixed groove has multiple location shrinkage pool, and medicated cushion is nested in fixed groove, and the bottom surface of medicated cushion is fixed Having multiple inserted link, inserted link sleeve, in corresponding location shrinkage pool, the medial wall of location shrinkage pool is bolted with multiple place kick headpin Plug, the steel ball of place kick headpin plug stretches out the location sidewall of shrinkage pool and to be nested in the location annular having on the lateral wall of inserted link recessed In groove；

The back side of seat is fixed with regulation lobe, and rotary shaft runs through through hole through regulation lobe, runs through through hole Two ends are provided with bearing, and the outer ring of bearing is fixed on the medial wall running through through hole, and rotary shaft is fixed in the inner ring of bearing, turn The two ends of moving axis project through through hole, and the two ends of rotary shaft are fixed with travelling gear, the seat at the two ends of regulation lobe The back side is fixed with contiguous block, and contiguous block is hinged with regulation gear, and regulation gear is meshed with travelling gear, the bottom surface two of backrest End has extension, and extension is fixed at the two ends of rotary shaft；

The back side of the seat at the upper and lower of described contiguous block is fixed with spacing regulating block, and spacing regulating block has Vertically holding through hole, holding bar sleeve is in vertical holding through hole, and holding pole pair has holding block at regulation gear, holding block Holding is between two teeth portion of regulation gear, and holding bar forms limited block away from one end of regulation gear, inserts in holding bar Being cased with buffer spring, holding block is put forth effort in one end of buffer spring, and the other end of buffer spring puts forth effort on spacing regulating block.

Being inserted with fairlead in vertical holding through hole on described spacing regulating block, the outer wall of fairlead is fixed on vertically card Putting on the medial wall of through hole, holding bar sleeve is in fairlead.

The upper rear portion of described seat is fixed with one end of spring, and the other end of spring is fixed on the extension of backrest.

The bottom surface of described seat is fixed with four connection posts, and the center bottom connecting post has regulation jack, connects post Bottom face is fixed with limiting plate, and the middle part of limiting plate has flexible jack, and the diameter of flexible jack is less than the diameter of regulation jack, The top of supporting leg is through flexible jack and stretches in regulation jack, and the top of supporting leg has spacing block, and spacing block sleeve exists In regulation jack, the diameter of spacing block is more than the diameter of supporting leg, and supporting leg upper sleeve has regulation spring, and the bottom of supporting leg is fixed with Resilient support block, limiting plate is put forth effort in one end of regulation spring, the other end puts forth effort on resilient support block.

The beneficial effects of the present invention is:

Its medicated cushion dismounting and change is easy to clean, and backrest can realize tilt adjustment, thus meets different use requirements.

Accompanying drawing illustrates:

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the partial structurtes schematic diagram of the present invention；

Fig. 3 is the partial enlarged drawing of Fig. 1.

Detailed description of the invention:

Embodiment: as shown in Fig. 1 to Fig. 3, a kind of medicated cushion detachable backrest adjustable student chair, including seat 10 with lean on The back of the body 20, has fixed groove 31 in the middle part of the end face of described seat 10, the bottom surface of fixed groove 31 has multiple location shrinkage pool 32, sits Pad 30 is nested in fixed groove 31, and the bottom surface of medicated cushion 30 is fixed with multiple inserted link 33, and inserted link 33 sleeve is recessed in corresponding location In hole 32, the medial wall of location shrinkage pool 32 being bolted with multiple place kick headpin plug 34, the steel ball of place kick headpin plug 34 stretches out Position the sidewall of shrinkage pool 32 and be nested on the lateral wall of inserted link 33 in the locating ring connected in star 35 having；

The back side of seat 10 is fixed with regulation lobe 11, and rotary shaft 12 runs through through hole through regulation lobe 11, passes through The two ends of reach through hole are provided with bearing, and the outer ring of bearing is fixed on the medial wall running through through hole, and rotary shaft 12 is fixed on bearing Inner ring in, the two ends of rotary shaft 12 project through through hole, and the two ends of rotary shaft 12 are fixed with travelling gear 13, regulate lobe The back side of the seat 10 at the two ends of 11 is fixed with contiguous block 14, contiguous block 14 is hinged with regulation gear 15, regulates gear 15 Being meshed with travelling gear 13, the two ends, bottom surface of backrest 20 have extension 21, and extension 21 is fixed on the two ends of rotary shaft 12 Place；

The back side of the seat 10 at the upper and lower of described contiguous block 14 is fixed with spacing regulating block 16, spacing regulating block Having vertical holding through hole 17 on 16, holding bar 18 sleeve is in vertical holding through hole 17, and holding bar 18 is facing to regulation gear 15 Place has holding block 181, and holding block 181 holding is between two teeth portion of regulation gear 15, and holding bar 18 is away from regulation gear One end of 15 forms limited block 182, is inserted with buffer spring 183 in holding bar 18, and card is put forth effort in one end of buffer spring 183 Putting block 181, the other end of buffer spring 183 puts forth effort on spacing regulating block 16.

Further, the vertical holding through hole 17 on described spacing regulating block 16 is inserted with fairlead 171, fairlead The outer wall of 171 is fixed on the medial wall of vertical holding through hole 17, and holding bar 18 sleeve is in fairlead 171.

Further, the upper rear portion of described seat 10 is fixed with one end of spring 19, and the other end of spring 19 is fixed On the extension 21 of backrest 20.

Further, the bottom surface of described seat 10 is fixed with four connection posts 101, connects the center bottom tool of post 101 Having regulation jack 102, the bottom face connecting post 101 is fixed with limiting plate 103, and the middle part of limiting plate 103 has flexible jack 104, the diameter of flexible jack 104 is less than the diameter of regulation jack 102, and the top of supporting leg 105 is through flexible jack 104 and stretches into Regulation jack 102 in, the top of supporting leg 105 has spacing block 1051, spacing block 1051 sleeve regulation jack 102 in, The diameter of spacing block 1051 is more than the diameter of supporting leg 105, and supporting leg 105 upper sleeve has regulation spring 107, the bottom of supporting leg 105 Being fixed with resilient support block 106, limiting plate 103 is put forth effort in one end of regulation spring 107, the other end puts forth effort on resilient support block 106。

Operation principle: by four holding bars 18 are pulled so that holding block 181 not holding is between two teeth portion, so Rear rotation backrest 20, thus regulate the angle of inclination of backrest 20, then, then unclamp holding bar 18, by the work of buffer spring 183 With so that holding block 181 holding is between two corresponding teeth portion, it is achieved holding, thus completes regulation, and spring 19 plays, User back has a supporting role when leaning against backrest 20, prevent from being pressed against excessive and making backrest 20 impaired.

And medicated cushion 30 has only to firmly pull up and can dismantle from seat 10, very convenient.

Claims

1. a medicated cushion detachable backrest adjustable student chair, including seat (10) and backrest (20), it is characterised in that: described Having fixed groove (31) in the middle part of the end face of seat (10), the bottom surface of fixed groove (31) has multiple location shrinkage pool (32), sits Pad (30) is nested in fixed groove (31), and the bottom surface of medicated cushion (30) is fixed with multiple inserted link (33), and inserted link (33) sleeve is right In the location shrinkage pool (32) answered, the medial wall of location shrinkage pool (32) is bolted with multiple place kick headpin plug (34), positions bulb The steel ball of plunger (34) stretches out the sidewall of location shrinkage pool (32) and is nested on the lateral wall of inserted link (33) the location annular having In groove (35)；

The back side of seat (10) is fixed with regulation lobe (11), and rotary shaft (12) runs through logical through regulation lobe (11) Hole, the two ends running through through hole are provided with bearing, and the outer ring of bearing is fixed on the medial wall running through through hole, and rotary shaft (12) is fixed In the inner ring of bearing, the two ends of rotary shaft (12) project through through hole, and the two ends of rotary shaft (12) are fixed with travelling gear (13), the back side of the seat (10) at the two ends of regulation lobe (11) is fixed with contiguous block (14), and contiguous block (14) is upper hinged Having regulation gear (15), regulation gear (15) to be meshed with travelling gear (13), the two ends, bottom surface of backrest (20) have extension (21), extension (21) is fixed at the two ends of rotary shaft (12)；

The back side of the seat (10) at the upper and lower of described contiguous block (14) is fixed with spacing regulating block (16), spacing regulation Having vertical holding through hole (17) on block (16), holding bar (18) sleeve is in vertical holding through hole (17), and holding bar (18) is right Regulation gear (15) place and there is holding block (181), holding block (181) holding regulation gear (15) two teeth portion between, Holding bar (18) forms limited block (182) away from one end of regulation gear (15), and holding bar is inserted with buffer spring in (18) (183), holding block (181) is put forth effort in one end of buffer spring (183), and the other end of buffer spring (183) puts forth effort on spacing tune Locking nub (16).

A kind of medicated cushion detachable backrest adjustable student chair, it is characterised in that: described spacing tune Being inserted with fairlead (171) in vertical holding through hole (17) in locking nub (16), the outer wall of fairlead (171) is fixed on vertically card Putting on the medial wall of through hole (17), holding bar (18) sleeve is in fairlead (171).

A kind of medicated cushion detachable backrest adjustable student chair, it is characterised in that: described seat (10) upper rear portion is fixed with one end of spring (19), and the other end of spring (19) is fixed on the extension (21) of backrest (20) On.

A kind of medicated cushion detachable backrest adjustable student chair, it is characterised in that: described seat (10) bottom surface is fixed with four connection posts (101), and the center bottom connecting post (101) has regulation jack (102), connects post (101) bottom face is fixed with limiting plate (103), and the middle part of limiting plate (103) has flexible jack (104), flexible jack (104) diameter is less than the diameter of regulation jack (102), and the top of supporting leg (105) is through flexible jack (104) and stretches into regulation In jack (102), the top of supporting leg (105) has spacing block (1051), and spacing block (1051) sleeve is at regulation jack (102), in, the diameter of spacing block (1051) is more than the diameter of supporting leg (105), and supporting leg (105) upper sleeve has regulation spring (107), the bottom of supporting leg (105) is fixed with resilient support block (106), and limiting plate is put forth effort in one end of regulation spring (107) (103), the other end puts forth effort on resilient support block (106).