CN110338582A - Myopia prevention reads chair - Google Patents
Myopia prevention reads chair Download PDFInfo
- Publication number
- CN110338582A CN110338582A CN201910690794.1A CN201910690794A CN110338582A CN 110338582 A CN110338582 A CN 110338582A CN 201910690794 A CN201910690794 A CN 201910690794A CN 110338582 A CN110338582 A CN 110338582A
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- China
- Prior art keywords
- chair
- support frame
- runner
- face
- myopia prevention
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 208000001491 myopia Diseases 0.000 title claims abstract description 27
- 230000004379 myopia Effects 0.000 title claims abstract description 26
- 230000002265 prevention Effects 0.000 title claims abstract description 23
- 241000446313 Lamella Species 0.000 claims description 20
- 229920001971 elastomer Polymers 0.000 claims description 16
- 239000000806 elastomer Substances 0.000 claims description 10
- 239000007937 lozenge Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 210000001508 eye Anatomy 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 241000282836 Camelus dromedarius Species 0.000 description 1
- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
- A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/02—Orthopaedic corsets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
- F16B21/073—Releasable fastening devices with snap-action in which the socket has a resilient part the socket having a resilient part on its inside
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A kind of myopia prevention provided by the invention reads chair, including spine correcting clothing and chair, back of the spine correcting clothing to be worn on reading personnel, the support frame being vertically arranged is installed on the spine correcting clothing, support frame as described above is vertically arranged the back of reading personnel to be supported to backbone；The chair back of chair has person of modern times end face and people living in faraway places end face, the correction slot to accommodate support frame is provided on person of modern times end face, two grooves being vertically arranged are provided on the people living in faraway places end face, two grooves are located at the two sides of correction slot, and the perforation being connected to correction slot is installed on the side wall of the groove, lock tongue is slidably installed in the perforation；Wherein, actuator is installed, actuator is to after support frame is embedded in correction slot, driving lock tongue is slided into correction slot, the surface locking support frame until being connected to support frame on the people living in faraway places end face.Myopia prevention provided by the invention reads chair, is convenient for correcting reading posture, is convenient for pre- myopia prevention.
Description
Technical field
The present invention relates to chair arts, and in particular to a kind of myopia prevention reading chair.
Background technique
Myopia is also referred to as short-sighted eye, can only see close and regard remote unclear；When being in resting state, come from unlimited distance parallel
Light assembles focus after the dioptric system refractive power of eye before retina, then forms unclear picture on the retina.
Currently, the children of China's primary school period, myopia is commonplace, to find out its cause, when often reading a book, write with children
Fault it is related, the suitable distance not being able to maintain between eyes and desk surface, i.e., in writing or reading, camel of bending over
Back, so that the hypotelorism of eyes and book just forms myopia over time.In order to correct the reading posture of student, on the market
There is spine correcting clothing, such as good back, spine correcting clothing is worn on student by when use, is formed to the backbone of student
Support prevents student from keeping bow-backed state reading so that the backbone of student can not be bent.
Existing spine correcting clothing the problem is that, can only spinal fixation, the waist of student can not be fixed, according to Cheng Xuesheng
Although back is straight, by the bending of waist, student lies prone mostly and reads a book on desk, and pre- myopic-preventing effect is not achieved,
And long-time spinal fixation, it is unfavorable for the development of backbone.
Summary of the invention
For the defects in the prior art, myopia prevention provided by the invention reads chair, is convenient for correcting reading posture, convenient for pre-
Myopia prevention.
A kind of myopia prevention provided by the invention reads chair, comprising:
Spine correcting clothing, back of the spine correcting clothing to be worn on reading personnel are pacified on the spine correcting clothing
Equipped with the support frame being vertically arranged, support frame as described above is vertically arranged the back of reading personnel to be supported to backbone；
Chair, the chair back of the chair have person of modern times end face and people living in faraway places end face, are provided on the person of modern times end face to accommodate
The correction slot of support frame is provided with two grooves being vertically arranged on the people living in faraway places end face, and two grooves are located at correction
The two sides of slot, and the perforation being connected to correction slot is installed on the side wall of the groove, slidably pacify in the perforation
Equipped with lock tongue；
Wherein, actuator is installed, the actuator is to drive after support frame is embedded in correction slot on the people living in faraway places end face
Dynamic lock tongue is slided into correction slot, the surface locking support frame until being connected to support frame.
Optionally, support frame as described above includes several joint assemblies, and the joint assembly includes articular lamella and supporting block, institute
It states supporting block to be fixed on articular lamella, accommodation groove is provided at the top of the articular lamella, it is vertical with articular lamella that bottom is provided with one
Short axle, the bottom of the articular lamella are embedded in the accommodation groove of adjacent articular lamella, and can be rotated around short axle.
Optionally, one end of the lock tongue is protruded into and forms lug bosses at end part in groove, and the lug bosses at end part passes through an elastomer
It is connect with the side wall of groove, the elastomer is described keep lug bosses at end part to the trend moved far from correction slot side
Actuator includes power plate, and the power plate is mounted on people living in faraway places end face, and can be slided on people living in faraway places end face along the vertical direction, institute
The two sides for stating power plate are mounted on push rod, connect in the push rod insertion groove with lug bosses at end part wedge shape.
Optionally, the actuator further includes pedal, connecting rod, runner and horizontally disposed gear shaft；The gear shaft
It is rotatably mounted on people living in faraway places end face, and is fixed with a power gear on the gear shaft, installed on the power plate
There is rack gear, the rack gear is engaged with power gear, handrail supporting plate is equipped on the pedestal of the chair, the pedal is with rotatable
Mode be mounted on the bottom of handrail supporting plate, the runner is rotatably mounted to the top of handrail supporting plate, described turn
The end of wheel and gear shaft is sequentially connected, and one end of the connecting rod is hinged on pedal, and another opposite end is hinged on runner.
Optionally, the runner includes the wheel group of the left and right sides of two pedestals for being separately mounted to chair, the wheel group
Including interior runner and outer runner, cavity is provided in the handrail supporting plate, the interior runner and outer runner are located at cavity
Two sides, and be rotatably mounted on handrail supporting plate, it is mounted on connecting shaft on the interior runner and outer runner, it is described
Connecting shaft passes through in handrail supporting plate insertion cavity, clutch is equipped in the cavity, the clutch is to make two connections
Axis is connected with each other or separation, one of them outer runner connect with gear spindle drive, be arranged on the outer peripheral surface of another outer runner
There are the gear teeth, and engaged by the gear teeth with a tooth sector, the tooth sector is connect with gear spindle drive.
Optionally, the clutch includes turntable I, turntable II, key and spring I；The turntable I is fixed therein one
In connecting shaft, the turntable II and another connecting shaft are keyed, and can be slided in connecting shaft in the horizontal direction, the turntable
II is equipped with rubber layer close to one end of turntable I, and one end far from turntable I is provided with circular conical surface, is provided on the handrail supporting plate
The through-hole being connected to cavity, the key forms lozenges along through-hole insertion cavity, and is slidably connected with handrail supporting plate, the wedge
Shape face is abutted with circular conical surface, and the both ends of the spring I are connect with key and handrail supporting plate respectively.
Optionally, several rotatable balls, the outer peripheral surface and circular conical surface of the ball are installed on the lozenges
It abuts.
Optionally, the elastomer be spring II, the both ends of the spring II respectively with the side wall of groove and lug bosses at end part
Connection.
As shown from the above technical solution, beneficial effects of the present invention: a kind of myopia prevention reading chair provided by the invention, including
Spine correcting clothing and chair, back of the spine correcting clothing to be worn on reading personnel are installed on the spine correcting clothing
There is the support frame being vertically arranged, support frame as described above is vertically arranged the back of reading personnel to be supported to backbone；It is described
The chair back of chair has person of modern times end face and people living in faraway places end face, and the correction slot to accommodate support frame, institute are provided on the person of modern times end face
It states and is provided with two grooves being vertically arranged on people living in faraway places end face, two grooves are located at the two sides of correction slot, and the groove
Side wall on be equipped with the perforation that is connected to of correction slot, lock tongue is slidably installed in the perforation；Wherein, described
Actuator is installed, the actuator is to after support frame is embedded in correction slot, driving lock tongue is into correction slot on people living in faraway places end face
Sliding, the surface locking support frame until being connected to support frame.Myopia prevention provided by the invention reads chair, reads appearance convenient for correcting
Gesture is convenient for pre- myopia prevention.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic perspective view of rear apparent direction of the invention；
Fig. 3 is the structural schematic diagram of actuator；
Fig. 4 is the structural schematic diagram of push rod；
Fig. 5 is the structural schematic diagram of clutch；
Fig. 6 is enlarged drawing at A in Fig. 5；
Fig. 7 is the structural schematic diagram of support frame.
Appended drawing reference:
1- support frame, 2- chair, 3- lock tongue, 4- actuator, 5- clutch, 11- articular lamella, 12- supporting block, the 21- chair back,
22- pedestal, 23- handrail supporting plate, 31- lug bosses at end part, 32- spring II, 41- power plate, 42- pedal, 43- connecting rod, 44- runner,
45- gear shaft, 51- turntable I, 52- turntable II, 53- key, 54- spring I, 111- accommodation groove, 112- short axle, 211- person of modern times end
Face, 212- people living in faraway places end face, 213- correct slot, 214- groove, 215- perforation, 231- cavity, 232- through-hole, 411- push rod, 441-
The outer runner of interior runner, 442-, 443- connecting shaft, 444- tooth sector, 451- power gear, 521- circular conical surface, 531- lozenges,
532- ball.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
Please refer to Fig. 1-7, a kind of myopia prevention reading chair provided in this embodiment, comprising:
Spine correcting clothing, back of the spine correcting clothing to be worn on reading personnel are pacified on the spine correcting clothing
Equipped with the support frame 1 being vertically arranged, support frame as described above is vertically arranged the back of reading personnel to be supported to backbone；
The spine correcting clothing is not drawn into Fig. 1.
Chair 2, the chair back 21 of the chair have person of modern times end face 211 and a people living in faraway places end face 212, on the person of modern times end face 211
It is provided with the correction slot 213 to accommodate support frame, is provided with two grooves being vertically arranged 214 on the people living in faraway places end face 212, two
The groove is located at the two sides of correction slot, and the perforation 215 being connected to correction slot is equipped on the side wall of the groove, described
Lock tongue 3 is slidably installed in perforation；
Wherein, actuator 4 is installed on the people living in faraway places end face, the actuator to after support frame is embedded in correction slot,
Driving lock tongue is slided into correction slot, the surface locking support frame until being connected to support frame.
In use, spine correcting clothing is worn on the body of reading personnel, support frame as described above is to carry out backbone at this time
Support, is vertically arranged the back of reading personnel.Reading personnel are sitting on chair 2, and back is resisted against the person of modern times end face of the chair back 21
211, the insertion of support frame as described above 1 is corrected in slot 213, and the actuator 4 drives lock tongue to slide into correction slot, until being connected to branch
The surface locking support frame of support.The back for reading personnel at this time is vertically arranged, and is fixed on the chair back 21 of chair, reader
The waist of member can not be bent, and backbone can not be bent.The posture that reading personnel can only be kept fixed is read, and the eye of reading personnel is prevented
Eyeball is too close from books.Myopia prevention provided in this embodiment reads chair, is convenient for correcting reading posture, is convenient for pre- myopia prevention.Optionally,
Anti-slip rubber layer is provided on the outer peripheral surface of support frame as described above 1, the lock tongue is pressed on anti-slip rubber layer, convenient for increasing friction
Power is convenient for fixing support rack 1.It will be understood that the effect of the spine correcting clothing is only to read to wrap up in the present embodiment
Support frame 1, is fixed on the back of reading personnel by the upper part of the body of reading personnel.The spine correcting clothing is flexible.
As further improvement to above-mentioned technical proposal, support frame as described above 1 includes several joint assemblies, the joint
Component includes articular lamella 11 and supporting block 12, and the supporting block is fixed on articular lamella, and the top of the articular lamella 11 is provided with appearance
Slot 111 is set, bottom is provided with a short axle 112 vertical with articular lamella, and the bottom of the articular lamella is embedded in adjacent articular lamella
In accommodation groove, and it can be rotated around short axle.Under original state, support frame as described above 1 is separated with the chair back of chair, reads personnel activity
When, the articular lamella 11 is rotated with the movement of backbone, easy to read personnel activity's body, prevents from for a long time carrying out backbone strong
System is fixed, convenient for the growth and development of backbone.When reading, in the insertion correction slot 213 of support frame as described above 1, the lock tongue 3 is pressed on branch
On bracer 12, reading personnel are fixed on the chair back 21 of chair, supporting block 12 adjacent at this time mutually contradicts, and makes support frame 1
It is in a vertical state.It will be understood that several articular lamellas 11 are connected with each other at this time, the song of fitting people's back curve is formed
Face prevents deformation of spinal column convenient for protection backbone.
As further improvement to above-mentioned technical proposal, one end of the lock tongue 3, which is protruded into, forms lug bosses at end part in groove
31, the lug bosses at end part is connected by the side wall of an elastomer and groove, and the elastomer is keep lug bosses at end part to remote
Trend from the movement of correction slot side, the actuator 4 include power plate 41, and the power plate is mounted on people living in faraway places end face, and
It can be slided on people living in faraway places end face along the vertical direction, the two sides of the power plate 41 are mounted on push rod 411, and the push rod is embedded in ditch
It is connect in slot with lug bosses at end part wedge shape.Under original state, the push rod 411 is separated with lug bosses at end part 31, one end of the lock tongue 3
It is accommodated in perforation 215, forms lug bosses at end part 31 in another insertion groove 214.When needing locking support frame 1, the power
41 upward sliding of plate, the push rod 411 is contacted with lug bosses at end part 31, with the sliding of power plate 41,411 pressed end of push rod
Portion's boss 31 is inserted into lock tongue 3 in correction slot 213 and is pressed on support frame 1, locking support frame 1.When needing to unclamp support frame
1 makes, and 41 slide downward of power plate restPoses, and the lock tongue 3 is under the action of elastomer, to far from correction slot
Side movement, restPoses.Structure is simple, convenient for locking or unclamping support frame 1.The elastomer is spring II32,
The both ends of the spring II are connect with the side wall of groove and lug bosses at end part respectively.
As further improvement to above-mentioned technical proposal, the actuator 4 further includes pedal 42, connecting rod 43, runner 44
And horizontally disposed gear shaft 45；The gear shaft 45 is rotatably mounted on people living in faraway places end face, and the gear shaft
On be fixed with a power gear 451, rack gear is installed, the rack gear is engaged with power gear, the chair 2 on the power plate
Pedestal 22 on handrail supporting plate 23 is installed, the pedal is rotatably mounted to the bottom of handrail supporting plate, described turn
Wheel is rotatably mounted to the top of handrail supporting plate, the end transmission connection of the runner and gear shaft, the connecting rod
One end be hinged on pedal, another opposite end is hinged on runner.The runner 44 passes through the end of a transmission belt and gear shaft
Portion's transmission connection.The pedal 42 has a mandrel, and the mandrel is rotatably mounted to handrail supporting plate by torsional spring
Bottom.Under original state, the pedal 42 is horizontally disposed, when needing locking support frame 1, with foot pedal 42, makes described step on
Plate 42 is swung on handrail supporting plate, thus drive runner 44 to rotate by connecting rod 43, thus realize the rotation of gear shaft 45, and it is described
Power plate is under the action of power gear, upward sliding.It reads personnel when due to using to be fixed on the chair back of chair, this implementation
The actuator 4 that example provides steps on the sliding of driving power plate by foot, and without reading, personnel bend over, and easy to read personnel use.
As further improvement to above-mentioned technical proposal, the runner 44 includes two pedestals for being separately mounted to chair
The left and right sides wheel group, the wheel group includes interior runner 441 and outer runner 442, is provided with cavity in the handrail supporting plate 23
231, the interior runner and outer runner are located at the two sides of cavity, and are rotatably mounted on handrail supporting plate, institute
It states and is mounted on connecting shaft 443 on interior runner and outer runner, the connecting shaft passes through in handrail supporting plate insertion cavity, the cavity
Clutch 5 is inside installed, the clutch is to make two connecting shafts be connected with each other or separate, one of them outer runner and tooth
Wheel shaft transmission connection, the outer runner are known as main story wheel, the gear teeth are provided on the outer peripheral surface of another outer runner, and pass through the gear teeth
It is engaged with a tooth sector 444, which is known as anti-pass wheel, and the tooth sector is connect with gear spindle drive.Described in two
Connecting shaft 443 is coaxially disposed, and is in discrete state.The present embodiment will be located on the left of chair for ease of description as shown in Figure 1
Outer runner be known as main story wheel, by be located at chair on the right side of outer runner be known as anti-pass wheel, when needing locking support frame 1 on, lead to
It crosses clutch 5 to connect two connecting shafts 443 being located on the left of chair, foot pedal 42, the main story wheeling driving gear axis 45
Rotation, to drive power plate upward sliding locking support frame 1.When needing to unclamp support frame 1, chair will be located at by clutch 5
Two connecting shafts 443 connection on sub- right side, foot pedal 42, the anti-pass wheel are revolved by tooth sector 444 with movable gear shaft 45
Turn, so that power plate slide downward be driven to unclamp support frame 1.It is upwardly or downwardly slided convenient for driving power plate, structure is simple,
It is convenient for safeguarding.
As further improvement to above-mentioned technical proposal, the clutch 5 includes turntable I51, turntable II52, key 53
With spring I54；The turntable I is fixed therein in a connecting shaft, and the turntable II and another connecting shaft are keyed, and can
It being slided in connecting shaft in the horizontal direction, the turntable II52 is equipped with rubber layer close to one end of turntable I, far from turntable I
One end is provided with circular conical surface 521, is provided with the through-hole 232 being connected to cavity on the handrail supporting plate 23, and the key 53 is along through-hole
It is inserted into cavity and forms lozenges 531, and be slidably connected with handrail supporting plate 23, the lozenges is abutted with circular conical surface, the spring I
Both ends connect respectively with key and handrail supporting plate.Under original state, the turntable I51 is separated with turntable II52, needs two
When the connection axis connection, key 53 downwards, the key 53 squeezes turntable II52 by circular conical surface 521, until turntable
II52 is pressed on the end face of turntable I51, and the turntable II52 is by generating frictional force in rubber layer and turntable I51, thus band
Turn disk I51 rotation, realizes the connection of two connecting shafts.Structure is simple, convenient for safeguarding.Key 53 is unclamped, key 53 exists
Spring I54 upward sliding, the turntable I51 are separated with turntable II52.
As further improvement to above-mentioned technical proposal, several rotatable rollings are installed on the lozenges 531
The outer peripheral surface of pearl 532, the ball is abutted with circular conical surface.Convenient for sliding of the lozenges 531 on circular conical surface.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of myopia prevention reads chair characterized by comprising
Spine correcting clothing, back of the spine correcting clothing to be worn on reading personnel are equipped on the spine correcting clothing
The support frame (1) being vertically arranged, support frame as described above are vertically arranged the back of reading personnel to be supported to backbone；
The chair back (21) of chair (2), the chair has person of modern times end face (211) and people living in faraway places end face (212), the person of modern times end face
(211) it is provided with the correction slot (213) to accommodate support frame on, two is provided on the people living in faraway places end face (212) and is vertically arranged
Groove (214), two grooves are located at the two sides of correction slot, and are equipped on the side wall of the groove and are connected to correction slot
Perforation (215), lock tongue (3) are slidably installed in the perforation；
Wherein, it is equipped with actuator (4) on the people living in faraway places end face, the actuator is to drive after support frame is embedded in correction slot
Dynamic lock tongue is slided into correction slot, the surface locking support frame until being connected to support frame.
2. myopia prevention according to claim 1 reads chair, it is characterised in that: support frame as described above (1) includes several joints
Component, the joint assembly include articular lamella (11) and supporting block (12), and the supporting block is fixed on articular lamella, the joint
It is provided at the top of plate (11) accommodation groove (111), bottom is provided with a short axle (112) vertical with articular lamella, the articular lamella
Bottom is embedded in the accommodation groove of adjacent articular lamella, and can be rotated around short axle.
3. myopia prevention according to claim 1 reads chair, it is characterised in that: one end of the lock tongue (3) is protruded into groove
It is formed lug bosses at end part (31), the lug bosses at end part is connected by the side wall of an elastomer and groove, and the elastomer is held to make
Portion's boss is kept to the trend moved far from correction slot side, and the actuator (4) includes power plate (41), the power plate peace
It on people living in faraway places end face, and can be slided on people living in faraway places end face along the vertical direction, the two sides of the power plate (41), which are mounted on, to push away
Bar (411), the push rod insertion groove is interior to be connect with lug bosses at end part wedge shape.
4. myopia prevention according to claim 3 reads chair, it is characterised in that: the actuator (4) further include pedal (42),
Connecting rod (43), runner (44) and horizontally disposed gear shaft (45)；The gear shaft (45) is rotatably mounted to
It is fixed on people living in faraway places end face, and on the gear shaft power gear (451), rack gear, the rack gear is installed on the power plate
It is engaged with power gear, handrail supporting plate (23) is installed on the pedestal (22) of the chair (2), the pedal is with rotatable side
Formula is mounted on the bottom of handrail supporting plate, and the runner is rotatably mounted to the top of handrail supporting plate, the runner with
The end of gear shaft is sequentially connected, and one end of the connecting rod is hinged on pedal, and another opposite end is hinged on runner.
5. myopia prevention according to claim 4 reads chair, it is characterised in that: the runner (44) includes two and installs respectively
Wheel group in the left and right sides of the pedestal of chair, the wheel group include interior runner (441) and outer runner (442), the handrail branch
It is provided with cavity (231) in plate (23), the interior runner and outer runner are located at the two sides of cavity, and in a rotatable way
It is mounted on handrail supporting plate, is mounted on the interior runner and outer runner connecting shaft (443), the connecting shaft passes through handrail branch
Plate is inserted into cavity, is equipped in the cavity clutch (5), the clutch to make two connecting shafts be connected with each other or
Separation, one of them outer runner are connect with gear spindle drive, the gear teeth are provided on the outer peripheral surface of another outer runner, and by being somebody's turn to do
The gear teeth are engaged with a tooth sector (444), and the tooth sector is connect with gear spindle drive.
6. myopia prevention according to claim 5 reads chair, it is characterised in that: the clutch (5) include turntable I (51),
Turntable II (52), key (53) and spring I (54)；The turntable I is fixed therein in a connecting shaft, the turntable II and another
One connecting shaft key connection, and can be slided in connecting shaft in the horizontal direction, the turntable II (52) is pacified close to one end of turntable I
Equipped with rubber layer, one end far from turntable I is provided with circular conical surface (521), is provided on the handrail supporting plate (23) and is connected to cavity
Through-hole (232), the key (53) along through-hole insertion cavity formed lozenges (531), and with handrail supporting plate (23) slide connect
It connects, the lozenges is abutted with circular conical surface, and the both ends of the spring I are connect with key and handrail supporting plate respectively.
7. myopia prevention according to claim 6 reads chair, it is characterised in that: be equipped on the lozenges (531) several
A rotatable ball (532), the outer peripheral surface of the ball are abutted with circular conical surface.
8. myopia prevention according to claim 3 reads chair, it is characterised in that: the elastomer is spring II (32), described
The both ends of spring II are connect with the side wall of groove and lug bosses at end part respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690794.1A CN110338582B (en) | 2019-07-29 | 2019-07-29 | Myopia-preventing reading chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690794.1A CN110338582B (en) | 2019-07-29 | 2019-07-29 | Myopia-preventing reading chair |
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| CN110338582A true CN110338582A (en) | 2019-10-18 |
| CN110338582B CN110338582B (en) | 2022-05-20 |
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| CN201910690794.1A Active CN110338582B (en) | 2019-07-29 | 2019-07-29 | Myopia-preventing reading chair |
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| Publication number | Publication date |
|---|---|
| CN110338582B (en) | 2022-05-20 |
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