CN208354949U - A kind of Multifunctional campus seat preventing waist injury of neck - Google Patents

Abstract

The utility model relates to a kind of multifunctional chairs, are in particular a kind of Multifunctional campus seats for preventing waist injury of neck, device, which is provided with, can store desktop, the adjustable angle of desktop, facilitate student to record the note, when not using desktop, desktop can be rotated to the storage of the lower section of stool seat；Hand-held board can be stored by being provided with, and cup placing groove is provided on hand-held board, prevent liquid in cup from pouring down or forth；The angle of the adjustable chair direction of device；Device makes the chair back have elasticity by fastener component and positioning chuck, the setting for relying on elastic material to flexibly support the chair back instead of existing chair, when relying on the chair back using lesser strength, the chair back sets back after tilting backwards certain amplitude, user has been buffered to a certain extent backward by the impact force generated, when use relies on the chair back compared with great strength, the chair back will tilt backwards and by a relatively large margin and therewith fix the angle of back tilting, the angle that the chair back is adjusted with this mitigates the feeling of fatigue of student.

Description

A kind of Multifunctional campus seat preventing waist injury of neck

Technical field

The utility model relates to a kind of multifunctional chairs, are in particular a kind of Multifunctional campus seats for preventing waist injury of neck Chair.

Background technique

The chair back of existing chair can only lean in campus, and the angle of the chair back is not adjustable, and be sitting on chair and listen to the teacher and learn Be easy increase student feeling of fatigue, not only affect the normal development of student's body, and be greatly reduced student listen to the teacher and The effect of study, and the chair back is stiff, when student relies on the chair back backward, the chair back can generate certain impact to the back of user Power, this impact force often causes certain damage to the waist neck of user, while existing seat cannot be on chair It writes.A kind of multifunction chair of Patent No. CN201420347783.6, the utility model disclose a kind of multifunctional chair Son, chair include the chair back, seat, and the connecting rod of two the connections chair back and seat being set in parallel is provided in chair body, The chair back is located between two connecting rods, and seat is separately provided for the articulation piece hinged with connecting rod, seat on two sides It is respectively arranged to block the locating part of connecting rod on two sides, seat includes cushion and two are placed in parallel and are used to support seat The support plate of pad is connected with fixing piece for fixing between two support plates, and chair back front and back sides are respectively arranged with back cushion, the chair back It is made with seat of bamboo and wood.If desired, the chair back can be rotated by articulation piece, the chair back and ground face contact, by the chair back Cushion is converted to, cushion is converted to desktop, realizes the functional shift from chair to desk.The utility model multifunction chair is not only Structure, principle are simple, easy to operate, and reduce space occupancy, realize that functional diversities, practicability are high.But this device is not Facilitate the angle of the direction and the chair back that adjust chair, and the chair back is stiff, is easy to increase the feeling of fatigue of student.

Utility model content

The utility model provides a kind of Multifunctional campus seat for preventing waist injury of neck, and its advantages are to be provided with and can receive Receive desktop, the adjustable angle of desktop facilitates student to record the note, and when not using desktop, desktop can be rotated to the lower section of stool seat Storage；Hand-held board can be stored by being provided with, and cup placing groove is provided on hand-held board, prevent liquid in cup from pouring down or forth；Device can be with Adjust the angle of chair direction；Device by fastener component and positioning chuck make the chair back have elasticity, instead of existing chair according to The setting flexibly supported by elastic material to the chair back, when relying on the chair back using lesser strength, the chair back can be tilted backwards It sets back after certain amplitude, has buffered user to a certain extent backward by the impact force generated, when using more energetically When gas relies on the chair back, the chair back will tilt backwards and by a relatively large margin and therewith fixes the angle of back tilting, adjust the chair back with this Angle, mitigate the feeling of fatigue of student.

The utility model relates to a kind of multifunctional chairs, are in particular a kind of Multifunctional campus seats for preventing waist injury of neck Chair, including chassis supports component, stool seat, hand-held board, the chair back, sliding block and desktop bracket, device, which is provided with, can store desktop, desktop Adjustable angle, facilitate student to record the note, do not use desktop when, desktop can be rotated to stool seat lower section storage；It is provided with Hand-held board can be stored, cup placing groove is provided on hand-held board, prevents liquid in cup from pouring down or forth；The adjustable chair direction of device Angle；Device makes the chair back have elasticity by fastener component and positioning chuck, relies on elastic material pair instead of existing chair The setting that the chair back is flexibly supported, when relying on the chair back using lesser strength, the chair back can tilt backwards extensive after certain amplitude Position is restored, user has been buffered to a certain extent and has relied on the impact force generated backward, when use relies on the chair back compared with great strength, The chair back will tilt backwards and by a relatively large margin and therewith fix the angle of back tilting, and the angle of the chair back is adjusted with this, mitigates and learns Raw feeling of fatigue.

The chassis supports component include annulus seat, connecting rod, disc seat, pillar, gear ring, motor rack, motor, gear and Universal wheel, the lower end of annulus seat are surrounded with four universal wheels, and four connecting rods are surrounded between annulus seat and disc seat, The upper end of disc seat is rotatably connected to pillar, and the lower end of pillar welds rack gear, is welded with motor rack on one of connecting rod, electricity Machine is fixedly connected on motor rack by screw, and motor powers on, and gear is fixedly connected on the machine shaft of motor, gear It is engaged with gear ring；

Fastener component, slideway and block are provided on the stool seat, stool seat is fixedly connected on the upper of pillar by screw End, the rear end of stool seat left end are fixedly connected with fastener component, and the upper and lower ends of stool seat left end are provided with slideway, and the front end of slideway is logical It crosses screw and is fixedly connected with block；

Positioning chuck, card slot and fixture block are provided on the chair back, the left end of the chair back is welded with positioning chuck, positioning card It is surrounded with multiple fixture blocks on disk, forms card slot between two adjacent fixture blocks, fastener component is connected in card slot, the chair back Lower end is hinged on the rear end of stool seat；

Cup placing groove, L-type fixed plate, limited block and limit film, the front end of hand-held board are provided on the hand-held board It is provided with cup placing groove, the rear end of hand-held board is hinged on the upper end of L-type fixed plate, and the front end of L-type fixed plate is provided with limit Block, the rear end of L-type dead plate upper end are provided with limit film, and L-type fixed plate is welded on the right end of stool seat；

Fin, rectangle limit plate, baffle placing groove and baffle are provided on the sliding block, sliding block is door shape, sliding block The upper and lower ends of right end are welded with two fins, and fin is slidably connected in slideway, and the left end of sliding block is welded with rectangle limit plate, The upper end of sliding block is provided with baffle placing groove, and panel hinge is on the rear end face of placing groove；

Be provided on the desktop bracket L-type hinged seat, desktop, rectangular straight slot, L-type screw bolt seat, screw rod, knob wheel and Rectangular block, the upper end of desktop bracket by being welded and connected with L-type hinged seat, desktop by being hingedly connected on L-type hinged seat, Rectangular straight slot is provided on desktop, the rear end of desktop bracket is provided on L-type screw bolt seat by being welded and connected with L-type screw bolt seat Threaded hole, screw rod is with L-type screw bolt seat by being threadedly engaged, and the lower end of screw rod is welded with knob wheel, and the upper end of screw rod is welded with two A rectangular block, rectangular block are located at the upper and lower ends of desktop, and the lower end of desktop bracket is by being hingedly connected to the left end of sliding block.

Preferably, the fastener component includes clamping block, supporting plate, rectangular block, slide bar, holddown spring, slide plate and pulls Plate, the rear end of clamping block are provided with oblique angle, and the front end of clamping block is welded with supporting plate, and the front end of supporting plate is welded with rectangular block, rectangle The front end of block is welded with slide bar, and circular through hole is provided among slide plate, and slide plate slides are connected on slide bar, between supporting plate and slide plate It is fixedly connected there are two holddown spring, two holddown springs are located at the upper and lower ends of rectangular block, and the front end of slide bar, which is welded with, to be pulled Plate, slide plate are welded on the left end of seat, and clamping block is connected in one of card slot.

Preferably, the radian of the fixture block end face by becoming larger clockwise.

Preferably, the upper end of the seat is provided with arc groove.

Preferably, the cup placing groove is up big and down small bellmouth.

Preferably, the L-type fixed plate is in hexagonal angle.

Preferably, the distance between the two described rectangular blocks are greater than the thickness of desktop.

Preferably, fastening screw is provided on the sliding block.

A kind of Multifunctional campus seat for preventing waist injury of neck of the utility model has the beneficial effect that

A kind of Multifunctional campus seat for preventing waist injury of neck of the utility model, device, which is provided with, can store desktop, desktop Adjustable angle, facilitate student to record the note, do not use desktop when, desktop can be rotated to stool seat lower section storage；It is provided with Hand-held board can be stored, cup placing groove is provided on hand-held board, prevents liquid in cup from pouring down or forth；The adjustable chair direction of device Angle；Device makes the chair back have elasticity by fastener component and positioning chuck, relies on elastic material pair instead of existing chair The setting that the chair back is flexibly supported, when relying on the chair back using lesser strength, the chair back can tilt backwards extensive after certain amplitude Position is restored, user has been buffered to a certain extent and has relied on the impact force generated backward, when use relies on the chair back compared with great strength, The chair back will tilt backwards and by a relatively large margin and therewith fix the angle of back tilting, and the angle of the chair back is adjusted with this, mitigates and learns Raw feeling of fatigue.

Detailed description of the invention

The utility model is described in more detail with specific implementation method with reference to the accompanying drawing.

Fig. 1 is a kind of structural schematic diagram for the Multifunctional campus seat for preventing waist injury of neck of the utility model；

Fig. 2 is a kind of partial enlargement structural representation for the Multifunctional campus seat for preventing waist injury of neck of the utility model；

Fig. 3 is the structural schematic diagram of chassis supports component；

Fig. 4 is the structural schematic diagram of stool seat；

Fig. 5 is the structural schematic diagram of fastener component；

Fig. 6 is the structural schematic diagram of the chair back；

Fig. 7 is the structural schematic diagram of hand-held board；

Fig. 8 is the schematic diagram of the section structure of hand-held board；

Fig. 9 is the structural schematic diagram of sliding block；

Figure 10 is the structural schematic diagram of desktop bracket.

In figure: chassis supports component 1；Annulus seat 1-1；Connecting rod 1-2；Disc seat 1-3；Pillar 1-4；Gear ring 1-5；Motor rack 1-6；Motor 1-7；Gear 1-8；Universal wheel 1-9；Stool seat 2；Fastener component 2-1；Clamping block 2-1-1；Supporting plate 2-1-2；Rectangular block 2-1-3；Slide bar 2-1-4；Holddown spring 2-1-5；Slide plate 2-1-6；Pull plate 2-1-7；Slideway 2-2；Block 2-3；Hand-held board 3； Cup placing groove 3-1；L-type fixed plate 3-2；Limited block 3-3；Limit film 3-4；The chair back 4；Positioning chuck 4-1；Card slot 4-2；Fixture block 4-3；Sliding block 5；Fin 5-1；Rectangle limit plate 5-2；Baffle placing groove 5-3；Baffle 5-4；Desktop bracket 6；L-type hinged seat 6-1； Desktop 6-2；Rectangular straight slot 6-3；L-type screw bolt seat 6-4；Screw rod 6-5；Knob wheel 6-6；Rectangular block 6-7.

Specific embodiment

Specific embodiment 1:

Below with reference to the bright present embodiment of Fig. 1-10, in particular it to be one that the utility model relates to a kind of multifunctional chairs Kind prevents the Multifunctional campus seat of waist injury of neck, including chassis supports component 1, stool seat 2, hand-held board 3, the chair back 4,5 and of sliding block Desktop bracket 6, device, which is provided with, can store desktop, and the adjustable angle of desktop facilitates student to record the note, can when not using desktop Rotating desktop to the storage of the lower section of stool seat；Hand-held board can be stored by being provided with, and cup placing groove is provided on hand-held board, is prevented Liquid is poured down or forth in cup；The angle of the adjustable chair direction of device；Device has the chair back by fastener component and positioning chuck It is flexible, rely on the setting that is flexibly supported to the chair back of elastic material instead of existing chair, when using lesser strength according to Arm-chair is unlucky, and the chair back sets back after tilting backwards certain amplitude, has buffered user to a certain extent backward by production Raw impact force, when use relies on the chair back compared with great strength, the chair back will be tilted backwards by a relatively large margin and therewith by back tilting Angle is fixed, and the angle of the chair back is adjusted with this, mitigates the feeling of fatigue of student.

The chassis supports component 1 includes annulus seat 1-1, connecting rod 1-2, disc seat 1-3, pillar 1-4, gear ring 1-5, electricity Rack 1-6, motor 1-7, gear 1-8 and universal wheel 1-9, the lower end of annulus seat 1-1 are surrounded with four universal wheel 1-9, circle Four connecting rod 1-2 are surrounded between ring seat 1-1 and disc seat 1-3, the upper end of disc seat 1-3 is rotatably connected to pillar 1-4, Rack gear 1-5 is welded in the lower end of pillar 1-4, and motor rack 1-6 is welded on one of connecting rod 1-2, and motor 1-7 is solid by screw Surely it is connected on motor rack 1-6, motor 1-7 powers on, and gear 1-8 is fixedly connected on the machine shaft of motor 1-7, gear 1-8 is engaged with gear ring 1-5；When use device, start motor 1-7, motor 1-7 drives gear ring 1-5 rotation, tooth by gear 1-8 It encloses 1-5 and drives seat 2 to rotate by pillar 1-4, to realize the angle of adjustment chair direction.Universal wheel 1-9 facilitates device whole Body is mobile.

Fastener component 2-1, slideway 2-2 and block 2-3 are provided on the stool seat 2, stool seat 2 is fixedly connected by screw In the upper end of pillar 1-4, the rear end of 2 left end of stool seat is fixedly connected with fastener component 2-1, the upper and lower ends setting of 2 left end of stool seat There is slideway 2-2, the front end of slideway 2-2 is fixedly connected with block 2-3 by screw；

Positioning chuck 4-1, card slot 4-2 and fixture block 4-3 are provided on the chair back 4, the left end of the chair back 4 is welded with positioning It is surrounded with multiple fixture block 4-3 on chuck 4-1, positioning chuck 4-1, forms card slot 4-2 between two adjacent fixture block 4-3, Fastener component 2-1 is connected in card slot 4-2, and the lower end of the chair back 4 is hinged on the rear end of stool seat 2；

Cup placing groove 3-1, L-type fixed plate 3-2, limited block 3-3 and limit film 3-4 are provided on the hand-held board 3, The front end of hand-held board 3 is provided with cup placing groove 3-1, and the rear end of hand-held board 3 is hinged on the upper end of L-type fixed plate 3-2, and L-type is solid The front end of fixed board 3-2 is provided with limited block 3-3, and the rear end of the upper end L-type fixed plate 3-2 is provided with limit film 3-4, L-type fixed plate 3-2 is welded on the right end of stool seat 2；When not using hand-held board 3, hand-held board 3 is flipped up, limit film 3-4 prevents hand-held board 3 It is faced upward to post-tensioning, realizes the restriction of vertical direction angle, facilitate student to walk and sit down with this；When using hand-held board, by hand rest Plate 3 downwardly turns over, and is resisted against the lower end surface of hand-held board 3 on limited block 3-3, realizes the restriction of horizontal direction angle；Cup can To prevent liquid in cup from pouring down or forth in the cup placing groove 3-1 that is placed on hand-held board 3.

Fin 5-1, rectangle limit plate 5-2, baffle placing groove 5-3 and baffle 5-4, sliding block 5 are provided on the sliding block 5 For door shape, the upper and lower ends of 5 right end of sliding block are welded with two fin 5-1, and fin 5-1 is slidably connected in slideway 2-2, sliding block 5 left end is welded with rectangle limit plate 5-2, and the upper end of sliding block 5 is provided with baffle placing groove 5-3, and baffle 5-4 is hinged on placing groove On the rear end face of 5-3；

Be provided on the desktop bracket 6 L-type hinged seat 6-1, desktop 6-2, rectangular straight slot 6-3, L-type screw bolt seat 6-4, Screw rod 6-5, knob wheel 6-6 and rectangular block 6-7, the upper end of desktop bracket 6 is by being welded and connected with L-type hinged seat 6-1, desktop 6-2 is provided with rectangular straight slot 6-3, the rear end of desktop bracket 6 is logical by being hingedly connected on L-type hinged seat 6-1 on desktop 6-2 It crosses and is welded and connected with L-type screw bolt seat 6-4, threaded hole is provided on L-type screw bolt seat 6-4, screw rod 6-5 passes through with L-type screw bolt seat 6-4 It is threadedly engaged, the lower end of screw rod 6-5 is welded with knob wheel 6-6, and the upper end of screw rod 6-5 is welded with two rectangular block 6-7, rectangle Block 6-7 is located at the upper and lower ends of desktop 6-2, and the lower end of desktop bracket 6 is by being hingedly connected to the left end of sliding block 5.Use dress When setting, sliding block 5 can horizontally slip on stool seat 2, will by the fastening screw on sliding block 5 so as to adjust the position of desktop 6-2 It is fixed, and rectangle limit plate 5-2 and baffle 5-4 are used to keep desktop bracket 6 in vertical position, needs to adjust the angle of desktop 6-2 When spending, turn knobs disk 6-6, adjusting screw rod 6-5 are located at the length below L-type screw bolt seat 6-4；When without using desktop 6-2, Baffle 5-4 is rotated clockwise 180 ° by the front end that sliding block 5 is slided to stool seat 2, and desktop bracket 6 is rotated clockwise 180 ° extremely The lower section of stool seat 2.

The fastener component 2-1 includes clamping block 2-1-1, supporting plate 2-1-2, rectangular block 2-1-3, slide bar 2-1-4, compresses Spring 2-1-5, slide plate 2-1-6 and plate 2-1-7 is pulled, the rear end of clamping block 2-1-1 is provided with oblique angle, before clamping block 2-1-1 End is welded with supporting plate 2-1-2, and the front end of supporting plate 2-1-2 is welded with rectangular block 2-1-3, and the front end of rectangular block 2-1-3 is welded with cunning Circular through hole is provided among bar 2-1-4, slide plate 2-1-6, slide plate 2-1-6 is slidably connected on slide bar 2-1-4, supporting plate 2-1-2 Holddown spring 2-1-5 there are two being fixedly connected between slide plate 2-1-6, two holddown spring 2-1-5 are located at rectangular block 2-1-3's Upper and lower ends, the front end of slide bar 2-1-4, which is welded with, pulls plate 2-1-7, and slide plate 2-1-6 is welded on the left end of seat 2, clamping block 2- 1-1 is connected in one of card slot 4-2.Moment can be generated when user, which is sitting in, to be relied on the chair back 4 backward on stool seat 2 Impact force, since the impact force of moment makes the chair back 4 that can tilt backwards certain angle, the chair back 4 revolves counterclockwise with positioning chuck 4-1 Turn certain angle, clamping block 2-1-1 can be skidded off out of one of card slot 4-2 at this time, and the rear end of clamping block 2-1-1 can be in fixture block The curved surfaces of 4-3 streak a distance clockwise, when moment impact force disappear after, due to the end face fixture block 4-3 radian by It becomes larger clockwise, under the action of two holddown spring 2-1-5, the rear end of clamping block 2-1-1 can be in fixture block 4-3 Curved surfaces slide counterclockwise, so that clamping block 2-1-1 can be snapped fit onto again after positioning chuck 4-1 rotates clockwise certain distance In original card slot 4-2, the chair back 4 can set back, and then realize positioning；When with biggish power to backward chair rest 4, positioning card Disk 4-1 turns over biggish angle clockwise, and clamping block 2-1-1, which is snapped fit onto, realizes positioning in next card slot 4-2, when lifting forward When pulling plate 2-1-7, pulls plate 2-1-7 band moving slide-bar 2-1-4 and slided in slide plate 2-1-6, slide bar 2-1-4 passes through rectangular block 2- 1-3 and supporting plate 2-1-2 drive clamping block 2-1-1 to be detached from out of card slot 4-2, and the rotation chair back 4 is to when setting back forward at this time, pine It opens and pulls plate 2-1-7, under the action of two holddown spring 2-1-5, clamping block 2-1-1 can snap fit onto original card slot 4- again In 2 and realize positioning.

The radian of the end face fixture block 4-3 by becoming larger clockwise.

The upper end of the seat 2 is provided with arc groove.

The cup placing groove 3-1 is up big and down small bellmouth.

The L-type fixed plate 3-2 is in hexagonal angle.

The distance between the two described rectangular block 6-7 are greater than the thickness of desktop 6-2.

Fastening screw is provided on the sliding block 5.

The elastic force of two holddown spring 2-1-5 is sufficiently large to prevent the chair back 4 from facing upward to post-tensioning.

A kind of working principle for the Multifunctional campus seat for preventing waist injury of neck of the utility model: when use device, starting Motor 1-7, motor 1-7 drive seat 2 to rotate by pillar 1-4, to realize the angle of adjustment chair direction.Universal wheel 1-9 Device is facilitated to move integrally.When not using hand-held board 3, hand-held board 3 is flipped up, facilitates student to walk and sit down with this； When using hand-held board, hand-held board 3 is downwardly turned over, is resisted against the lower end surface of hand-held board 3 on limited block 3-3, realized horizontal The restriction of orientation angle；Cup can be placed in the cup placing groove 3-1 on hand-held board 3.The adjustable desktop 6-2 of sliding block 5 Position, turn knobs disk 6-6, the angle of desktop 6-2 can be adjusted in the length that adjusting screw rod 6-5 is located at below L-type screw bolt seat 6-4 Degree；When without using desktop 6-2, sliding block 5 is slided to the front end of stool seat 2, baffle 5-4 is rotated clockwise 180 °, by desktop branch Frame 6 rotates clockwise 180 ° of lower sections to stool seat 2.It can be produced when user, which is sitting in, to be relied on the chair back 4 backward on stool seat 2 The impact force of raw moment, since the impact force of moment makes the chair back 4 that can tilt backwards certain angle, the chair back 4 is with positioning chuck 4-1 It rotates by a certain angle counterclockwise, clamping block 2-1-1 can be skidded off out of one of card slot 4-2 at this time, the rear end of clamping block 2-1-1 A distance can be streaked clockwise in the curved surfaces of fixture block 4-3, after the impact force of moment disappears, due to the end face fixture block 4-3 Radian by becoming larger clockwise, under the action of two holddown spring 2-1-5, the rear end of clamping block 2-1-1 can be The curved surfaces of fixture block 4-3 slide counterclockwise, so that positioning chuck 4-1 rotates clockwise clamping block 2-1-1 meeting after certain distance Again it snaps fit onto original card slot 4-2, the chair back 4 can set back and realize positioning, so that buffered makes to a certain extent User is backward by the impact force generated；When with biggish power to backward chair rest 4, positioning chuck 4-1 turns over larger clockwise Angle, clamping block 2-1-1, which is snapped fit onto, realizes positioning in next card slot 4-2, as lifting hand pulling plate 2-1-7 forward, pulls Plate 2-1-7 band moving slide-bar 2-1-4 is slided in slide plate 2-1-6, and slide bar 2-1-4 is driven by rectangular block 2-1-3 and supporting plate 2-1-2 Clamping block 2-1-1 is detached from out of card slot 4-2, and the rotation chair back 4 is to when setting back forward at this time, and release pulls plate 2-1-7, two Under the action of a holddown spring 2-1-5, clamping block 2-1-1 can be snapped fit onto original card slot 4-2 again and be realized positioning, with this The angle of the chair back is adjusted, mitigates the feeling of fatigue of student.

Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to In the protection scope of the utility model.

Claims (8)

1. a kind of Multifunctional campus seat for preventing waist injury of neck, including chassis supports component (1), stool seat (2), hand-held board (3), The chair back (4), sliding block (5) and desktop bracket (6), it is characterised in that: the chassis supports component (1) include annulus seat (1-1), Connecting rod (1-2), disc seat (1-3), pillar (1-4), gear ring (1-5), motor rack (1-6), motor (1-7), gear (1-8) and ten thousand To wheel (1-9), the lower end of annulus seat (1-1) is surrounded with four universal wheels (1-9), annulus seat (1-1) and disc seat (1-3) Between be surrounded with four connecting rods (1-2), the upper end of disc seat (1-3) is rotatably connected to pillar (1-4), pillar (1-4) Rack gear (1-5) is welded in lower end, is welded with motor rack (1-6) on one of connecting rod (1-2), and motor (1-7) is solid by screw Surely it is connected on motor rack (1-6), motor (1-7) powers on, and the motor that gear (1-8) is fixedly connected on motor (1-7) turns On axis, gear (1-8) is engaged with gear ring (1-5)；

Fastener component (2-1), slideway (2-2) and block (2-3) are provided on the stool seat (2), stool seat (2) is solid by screw Surely it is connected to the upper end of pillar (1-4), the rear end of stool seat (2) left end is fixedly connected with fastener component (2-1), stool seat (2) left end Upper and lower ends be provided with slideway (2-2), the front end of slideway (2-2) is fixedly connected with block (2-3) by screw；

Positioning chuck (4-1), card slot (4-2) and fixture block (4-3), the left end welding of the chair back (4) are provided on the chair back (4) Have positioning chuck (4-1), be surrounded on positioning chuck (4-1) multiple fixture blocks (4-3), two adjacent fixture blocks (4-3) it Between form card slot (4-2), fastener component (2-1) is connected in card slot (4-2), after the lower end of the chair back (4) is hinged on stool seat (2) End；

Cup placing groove (3-1), L-type fixed plate (3-2), limited block (3-3) and limit film are provided on the hand-held board (3) (3-4), the front end of hand-held board (3) are provided with cup placing groove (3-1), and the rear end of hand-held board (3) is hinged on L-type fixed plate (3- 2) upper end, the front end of L-type fixed plate (3-2) are provided with limited block (3-3), and the rear end of the upper end L-type fixed plate (3-2) is provided with Limit film (3-4), L-type fixed plate (3-2) are welded on the right end of stool seat (2)；

Fin (5-1), rectangle limit plate (5-2), baffle placing groove (5-3) and baffle (5- are provided on the sliding block (5) 4), sliding block (5) is door shape, and the upper and lower ends of sliding block (5) right end are welded with two fins (5-1), and fin (5-1) is slidably connected In slideway (2-2), the left end of sliding block (5) is welded with rectangle limit plate (5-2), and the upper end of sliding block (5) is provided with baffle placement Slot (5-3), baffle (5-4) are hinged on the rear end face of placing groove (5-3)；

L-type hinged seat (6-1), desktop (6-2), rectangular straight slot (6-3), L-type screw bolt seat are provided on the desktop bracket (6) (6-4), screw rod (6-5), knob wheel (6-6) and rectangular block (6-7), the upper end of desktop bracket (6) is by being welded and connected with L-type Hinged seat (6-1), desktop (6-2) are provided with rectangular straight slot on desktop (6-2) by being hingedly connected on L-type hinged seat (6-1) (6-3), the rear end of desktop bracket (6) are provided with spiral shell on L-type screw bolt seat (6-4) by being welded and connected with L-type screw bolt seat (6-4) Pit, for screw rod (6-5) with L-type screw bolt seat (6-4) by being threadedly engaged, the lower end of screw rod (6-5) is welded with knob wheel (6-6), The upper end of screw rod (6-5) is welded with two rectangular blocks (6-7), and rectangular block (6-7) is located at the upper and lower ends of desktop (6-2), The lower end of desktop bracket (6) is by being hingedly connected to the left ends of sliding block (5).

2. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: the card Part component (2-1) includes clamping block (2-1-1), supporting plate (2-1-2), rectangular block (2-1-3), slide bar (2-1-4), holddown spring It (2-1-5), slide plate (2-1-6) and pulls plate (2-1-7), the rear end of clamping block (2-1-1) is provided with oblique angle, clamping block (2-1- 1) front end is welded with supporting plate (2-1-2), and the front end of supporting plate (2-1-2) is welded with rectangular block (2-1-3), rectangular block (2-1-3) Front end be welded with slide bar (2-1-4), is provided with circular through hole among slide plate (2-1-6), slide plate (2-1-6) is slidably connected at cunning On bar (2-1-4), it is fixedly connected between supporting plate (2-1-2) and slide plate (2-1-6) there are two holddown spring (2-1-5), two are pressed Tight spring (2-1-5) is located at the upper and lower ends of rectangular block (2-1-3), and the front end of slide bar (2-1-4), which is welded with, pulls plate (2-1- 7), slide plate (2-1-6) is welded on the left end of stool seat (2), and clamping block (2-1-1) is connected in one of card slot (4-2).

3. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: the card The radian of the end face block (4-3) by becoming larger clockwise.

4. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: the stool The upper end of seat (2) is provided with arc groove.

5. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: the water Cup placing groove (3-1) is up big and down small bellmouth.

6. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: the L Type fixed plate (3-2) is in hexagonal angle.

7. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: described two The distance between a rectangular block (6-7) is greater than the thickness of desktop (6-2).

8. a kind of Multifunctional campus seat for preventing waist injury of neck according to claim 1, it is characterised in that: the cunning Block is provided with fastening screw on (5).