CN109619834A - Folding-type school desk chair - Google Patents
Folding-type school desk chair Download PDFInfo
- Publication number
- CN109619834A CN109619834A CN201910109151.3A CN201910109151A CN109619834A CN 109619834 A CN109619834 A CN 109619834A CN 201910109151 A CN201910109151 A CN 201910109151A CN 109619834 A CN109619834 A CN 109619834A
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- China
- Prior art keywords
- desktop
- hinge
- desk
- chair
- connecting rod
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B39/00—School forms; Benches or forms combined with desks
- A47B39/02—Adjustable forms
- A47B39/023—Adjustable forms with adjustable spacing between table and chair
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
- A47B13/02—Underframes
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B39/00—School forms; Benches or forms combined with desks
- A47B39/04—Collapsible or tip-up forms
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B39/00—School forms; Benches or forms combined with desks
- A47B39/08—Seats or backs for forms, e.g. foldable seat parts
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B41/00—School desks or tables
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B41/00—School desks or tables
- A47B41/02—Adjustable, inclinable, sliding or foldable desks tops
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- Combinations Of Kitchen Furniture (AREA)
Abstract
A kind of folding-type school desk chair, it attends class and takes a nap after lunch for classroom, including desk and tablet chair, desk includes desktop, table cabinet, table pedestal and desktop support part, table cabinet is fixedly connected with table pedestal, table cabinet is set to the left or right side of desk, and desktop is connect with table cabinet with desktop hinge, and desktop can be rotated around desktop hinge；Tablet chair includes chair frame, backboard, seat plate, positioning linkage rod, pillow or supporting plate, the connection of their interactions.Upper class hour, desktop turns to horizontal position around desktop hinge, seat plate around hinge goes to horizontal position, when afternoon nap, desktop turns near vertical position around desktop hinge, backboard and seat plate or backboard and supporting plate around hinge go to the mutual obtuse-angulate angle of cut, it lies down for human body, the present invention do not increase desk and chair occupied area and under the premise of, realize function of the desk and chair for lying down, a kind of comfortable afternoon nap facility of health is provided to students in middle and primary schools, solves the problems, such as that the student of long-standing problem school and parent take a nap hardly possible.
Description
Technical field
The present invention relates to a kind of teaching equipments, especially classroom student desk and chair.
Background technique
Afternoon nap is essential for teenager.But since existence conditions are limited, most middle and primary schools can not
Afternoon nap facility can be provided for student, leave home not to be that too far student can only go home to take a nap after lunch in lunch break, road delays back and forth
Many times, for the pupil of not capacity, to ensure road safety, it is necessary to be picked back and forth by parent, daily back and forth
School eight plows, and parent can't bear the heavy load.More it is difficult to, the farther away student that leaves home can only then lie prone to sleep on desk, though it can obtain
It a little rests, but if things go on like this, student gently then has a pain in the back, and heavy then hunchback is bent over, cervical vertebra disfiguration, seriously affects the body of children
Body health.Countless educators and parent are raised a cry of warning for a long time: it is very urgent to improve students in middle and primary schools' afternoon nap condition.Country has done
Mandatory provisions out, middle and primary schools are necessary for student and provide afternoon nap condition.But one possesses the developing of several hundred million students in middle and primary schools
Big country even provides sufficient degree and is also unable to handle, and providing afternoon nap facility can overnight not accomplish also, when quite long
In phase, best solution is that existing utility is simply transformed under the premise of not increasing occupied area to provide afternoon nap function.
But realizing that this function difficulty is big, someone proposed solution, various unhealthy unsafe afternoon nap sides so that so far there are no
Formula must be used as makeshift within considerable time.
Summary of the invention
A kind of healthiness is provided to students in middle and primary schools under the premise of the present invention is directed to not increase the occupied area of desk and chair
It takes a nap after lunch facility, solves the problems, such as that the student of long-standing problem school and parent do not take a nap after lunch condition.
To achieve the above object, the present invention provides a kind of folding-type school desk chair, including desk 10 and tablet chair 20, desks
10 include desktop 11, table cabinet 12, table pedestal 13 and desktop support part 14, and table cabinet 12 is fixedly connected with table pedestal 13, and tablet chair 20 wraps
Chair frame 21, backboard 22, seat plate 23 and positioning linkage rod 24 are included, the connection of their interactions, 24 length of positioning linkage rod is adjustable, uses
When be transferred to setting length the use state for each component that interaction connects is fixed up.The table cabinet 12 is in vertical bin knot
Structure is equipped with locker 121 in the left or right side of desk, cabinet, and for storing books and bedding, desktop 11 and table cabinet 12 are used
Desktop hinge 111 connects, and the hinged shaft of desktop hinge is in approximately horizontal plane；The chair frame 21 of the tablet chair 20,22 and of backboard
The connection of 23 interaction of seat plate；Upper class hour, desktop turn to horizontal position around desktop hinge, and seat plate around hinge goes to horizontal position
It sets, when afternoon nap, desktop turns near vertical position around desktop hinge, to concede afternoon nap space；Backboard and seat plate are around hinge
Gone in plane that chain goes to the mutual obtuse-angulate angle of cut or backboard and seat plate coexists with supporting plate around hinge be in it is blunt
The angle of cut at angle.
For the needs of the student of the different heights of adaptation, the table cabinet 12 of the desk 10 also needs setting one and table cabinet screw
Fixed lift connection plate 122, lift connection plate are equipped with vertically disposed multiple screw holes, and screw passes through different screws
The height of the adjustable lift connection plate in hole, desktop 11 and the desktop hinge 111 of table cabinet 12 hingedly are mounted on lift connection plate
Upper end.
The desktop support part 14 of the desk 10 is jointed connecting rod 14a, including mutually hinged upper connecting rod 14a1 and lower company
Bar 14a2, the upper end upper connecting rod 14a1 and 11 end of desktop are hinged, and lower link lower end and the table pedestal 13 are hinged, lower link
Length is approximately equal to the desktop hinge 111 to the upper end upper connecting rod 14a1 and hinged the distance between the hinge of desktop 11, upper company
Bar 14a1 be adjustable-length connecting rod, the sum of it and lower link 14a2 effective length be approximately equal to when desktop 11 is in a horizontal position from
The height on ground is equipped with bolt 14a3 on upper connecting rod 14a1；When desktop is in a horizontal position, upper connecting rod 14a1 and lower link
14a2 angle is 180 degree coexistence vertical position, and bolt 14a3 insertion lower link is fixed its position, after extracting bolt 14a3,
Desktop can go to the vertical position being bonded with 12 medial surface of table cabinet, upper connecting rod 14a1 and lower link 14a2 folder around desktop hinge 111
Angle becomes 90 degree, and the friendship of two connecting rods is at L-shaped, and lower link is in a horizontal position and ground proximity.
Another structure type of the desktop support part 14 of the desk 10 is 14 b of braced frame, is cut with scissors with 11 end of desktop
It connects, braced frame is rectangular configuration, and lower end is equipped with angle 14b1, and table pedestal 13 is equipped with dimple 131, at desktop
When horizontal position, angle 14b1 is inserted into dimple 131；When desktop goes to vertical position around desktop hinge 111, support
The position parallel with desktop is arrived in the turnover of frame 14b around hinge；Braced frame is equipped with height adjustment mechanism and is used to adjust its height, high
Degree regulating mechanism is screw and multiple in the bolt and nut device being located on angle 14b1 or the vertical edge for being located at rectangular configuration
The regulating device of screw hole cooperation.
Crank connecting link control also can be used in braced frame 14b for more convenient operation, the desk 10, is arranged mutually hinged
Controls connecting rod 14b2 and control crank 14b3, hingedly on the support frame, control crank 14b3 is certainly for the free end controls connecting rod 14b2
Table cabinet 12 is hinged on by end, when controls connecting rod 14b2 is 180 degree with the control crank 14b3 angle of cut, braced frame 14b and desktop
Vertically, desktop is in a horizontal position, when controls connecting rod 14b2 and the control crank 14b3 angle of cut are close to 0 degree, braced frame 14b with
For the desktop angle of cut also close to 0 degree, desktop is in a vertical position.
The desktop support part 14 of the desk 10 can also be reduced to support link 14c, and support link is bayonet connecting rod 14ca
Or the one end doubling connecting rod 14cb, bayonet connecting rod 14ca is hinged on desktop 11 in the following, the other end is equipped with the column that bayonet is stuck in table cabinet 12
To which desktop 11 is supported on horizontal position on pin 124；Doubling connecting rod 14cb be two mutually hinged short connecting rods, they from
Desktop 11 is respectively hinged at below and on the inside of table cabinet 12 by end, when the angle that two doubling connecting rods open is at 180 degree desktop 11
It is supported on horizontal position, desktop 11 hangs down into vertical position by self weight when their doublings.
The structure type that the desktop support part 14 of the desk 10 is designed as rotating bracket 14d can also realize mesh of the invention
, for this purpose, needing setting and the fixed crossbeam 123 connecting of table cabinet on table cabinet 12, rotating bracket 14d is cut with scissors with crossbeam 123 with vertical pivot
Chain 1231 connects, and when rotating bracket 14d plane goes to the position parallel with the axis of desktop hinge 111, desktop, which is supported on, to be turned
It is in a horizontal position on dynamic bracket 14d, when rotating bracket 14d plane goes to the position vertical with the axis of desktop hinge 111
When be bonded with crossbeam 123, desktop hangs down into vertical position by self weight.
The chair frame 21 of the tablet chair 20 is full hinge formula chair frame 21a, including foreleg 211, back leg 212 and is cut with scissors with foreleg, back leg
The seat base 213 connect, side-looking direction perspective view are a quadrangle, and the lower end and back leg upper end of the backboard 22 are hinged；
The positioning linkage rod 24 is shrinking connecting-rod 24a, including short connecting rod 24a1 and long connecting rod 24a2, the both ends short connecting rod 24a1 difference
It is hinged with back leg upper end and foreleg lower end, a diagonal line of the quadrangle is constituted, is shaped for the quadrangle；Long connecting rod
The both ends 24a2 are hinged with the middle part of back leg lower end and the backboard 22 respectively, position for backboard；
The backboard 22 further includes the pillow 221 hinged with backboard top, and pillow is equipped with on-of bolt 2211, backboard
Upper end is equipped with the jack 222 matched with on-of bolt, and when tablet chair is used to take a nap after lunch, pillow 221 is past to be turned over, on-of bolt 2211
Jack 222 on insertion backboard positions pillow to bear the weight of afternoon nap head part.
The shrinking connecting-rod 24a is sleeve type structure, including outer tube 24a1 and interior bar 24a2, and interior bar is equipped with multiple fixed
The polished rod of position hole 24a21, housing tube end are equipped with elastic positioning pin 24a22, and elastic positioning pin is embedded in fixed stretch of location hole and connects
The length of bar presses elastic positioning pin and is allowed to disengage with interior bar when needing to adjust length.Location hole can also be replaced with sawtooth.
The screw-rod structure of with adjusting nut can also be used in the adjusting of shrinking connecting-rod 24a shortest length, and corresponding outer tube is only
It need to be made into flat mouth casing, nozzle contact adjusting nut can position.
Gear mechanism adjustment length also can be used in shrinking connecting-rod 24a, and the interior bar is the ratch 24a3 of with helical rack, outer tube
End is equipped with the helical gear hand regulating device 24a4 of with.
The chair frame 21 of the tablet chair 20 is also designed to half hinge formula chair frame 21b, including foreleg 211, column 214 and and column
Half hinge seat 215 being fixedly connected, foreleg lower end and the front end of half hinge seat are hinged, 22 top of backboard and column 214
Upper end it is hinged, lower end and 23 rear end of the seat plate are hinged, and the front end of seat plate 23 and front leg upper ends are hinged.
The tablet chair 20 further includes supporting plate 25, and supporting plate 25 and the front end of seat plate 23 are hinged, is fixed with support frame 251 below；
The positioning linkage rod 24 is single hinge bar 24b, and the upper end and 22 lower end of backboard are hinged, and lower end is equipped with notch
24b1, column 214 are equipped with the positioning column matched with notch.
Advantageous effect of the invention
Folding-type school desk chair provided by the invention, under the premise of not increasing desk and chair occupied area and not increasing additional facilities,
Function of the desk and chair for lying down is realized, the configuration of the present invention is simple, manufacturing cost is low, and it is easy to use, securely and reliably, juvenile youngster
Child's operation, within one minute can completion status transformation, provide a kind of convenience to students in middle and primary schools, comfortable, health afternoon nap is set
It applies, solves the problems, such as that the student of long-standing problem school and parent take a nap hardly possible, are beneficial to the strong growth of student, are conducive in raising
Primary school teaching quality has significant Social benefit and economic benefit.
Detailed description of the invention
Below in conjunction with attached drawing, the invention will be further described.
A kind of sitting posture state side schematic view of folding-type school desk chair of Fig. 1 embodiment one.
A kind of state of couching side schematic view of folding-type school desk chair of Fig. 2 embodiment one.
To schematic diagram before a kind of sitting posture state of folding-type school desk chair of Fig. 3 embodiment one.The office of 22a
To schematic diagram before a kind of state of couching of folding-type school desk chair of Fig. 4 embodiment one.
To schematic diagram before a kind of sitting posture state of the desk of folding-type school desk chair of Fig. 5 embodiment two.
To schematic diagram before a kind of use state that lies down of the desk of folding-type school desk chair of Fig. 6 embodiment two.
To schematic diagram after a kind of sitting posture state of the desk of folding-type school desk chair of Fig. 7 embodiment three.
To schematic diagram after a kind of use state that lies down of the desk of folding-type school desk chair of Fig. 8 embodiment three.
To schematic diagram after a kind of sitting posture state of the desk of folding-type school desk chair of Fig. 9 example IV.
To schematic diagram after a kind of use state that lies down of the desk of folding-type school desk chair of Figure 10 example IV.
To schematic diagram after a kind of sitting posture state of the desk of the bayonet type connecting rod of folding-type school desk chair of Figure 11 example IV.
Schematic top plan view during a kind of desk adjustment of folding-type school desk chair of Figure 12 embodiment five.
A kind of sitting posture state side schematic view of the tablet chair of folding-type school desk chair of Figure 13 embodiment six.
A kind of use state side schematic view that lies down of the desk of folding-type school desk chair of Figure 14 embodiment six.
Specific embodiment
Embodiment one
The embodiment of the present invention is first is that a kind of folding-type school desk chair, as shown in Fig. 1-4, including desk 10 and tablet chair 20, desk 10
Including desktop 11, table cabinet 12, table pedestal 13 and desktop support part 14, table cabinet 12 is fixedly connected with table pedestal 13, and desktop is plate
Shape is made of timber or plastic cement or metal plate, and table cabinet is equipped in cabinet in vertical refrigerator structure set on the left or right side of desk
Locker 121 is screwed a lift connection plate 122 above 12 medial surface of table cabinet, goes up and down for storing books and bedding
Connecting plate is equipped with vertically disposed multiple screw holes, and screw passes through the height of the different adjustable lift connection plates of screw hole
Degree, to adapt to the needs of the student of different heights.Desktop 11 is connect with the desktop hinge 111 of table cabinet 12, and desktop hinge is mounted on
In the following, its hinged shaft is in horizontal plane, desktop 11 can turn to horizontal position around desktop hinge for lift connection plate upper limb and desktop
Or vertical position.
Desktop support part 14 is jointed connecting rod 14a, including mutually hinged upper connecting rod 14a1 and lower link 14a2, they
Side-looking direction be visible as frame shape, see attached drawing 1, the upper end upper connecting rod 14a1 and 11 end of desktop are hinged, lower link lower end and institute
It is hinged to state table pedestal 13, the length of lower link is approximately equal to the desktop hinge 111 and cuts with scissors to the upper end upper connecting rod 14a1 and desktop 11
The distance between hinge connect, upper connecting rod 14a1 are adjustable-length connecting rod, adjust the same of height using with lift connection plate 122
Structure, the sum of it and lower link 14a2 effective length is approximately equal to height when desktop 11 is in a horizontal position from the ground, on
Bolt 14a3 is installed on connecting rod 14a1；When desktop is in a horizontal position, upper connecting rod 14a1 frame plane and lower link 14a2
Frame plane angle is 180 degree coexistence vertical position, and bolt 14a3 insertion lower link is fixed its position, attached drawing 3 is seen, works as extraction
After bolt 14a3, desktop can go to vertical position around desktop hinge 111, fit with 12 medial surface of table cabinet, upper connecting rod 14a1 frame
Frame plane and lower link 14a2 frame plane angle become 90 degree, and the friendship of two link rod frame planes is at L-shaped, and upper connecting rod is still in vertical
Position is in a horizontal position and ground proximity close to table cabinet medial surface, lower link, and at this moment, entire desk is whole other than table cabinet
Space can be used in student and lie down, and see attached drawing 2, Fig. 4, and the space that the space of pupil's afternoon nap is lain down than aircarrier aircraft with seat is also
Want much spacious, by taking Air Passenger 380, Boeing 777 series, the American-European passenger planes of these large sizes of 747 series as an example, the spacing of economy seats
It is 86 centimetres, the tall and big white adult of figure lies down also very comfortably, and primary school, China classroom desk normal pitch is not less than 85 lis
Rice, no desk lie down for pupil when stopping and are spacious.
Tablet chair 20 includes chair frame 21, backboard 22, seat plate 23 and positioning linkage rod 24, the connection of their interactions, positioning company
24 length of bar is adjustable, and when use is transferred to setting length and the use state for each component that interaction connects is fixed up.
The chair frame 21 of tablet chair 20 is full hinge formula chair frame 21a, hinged including foreleg 211, back leg 212 and with foreleg, back leg
Seat base 213, side-looking direction perspective view are a quadrangle, see attached drawing 1, as it can be seen that foreleg and back leg in forward projection's figure
For " Π " font structure, be integrally molded with angle-steel welding or metal, see attached drawing 3, the backboard 22 in plate shaped or
Arc surfaced is made of wood based panel, mould plate or metal plate, and lower end and back leg upper end are hinged；
Positioning linkage rod 24 is shrinking connecting-rod 24a, including short connecting rod 24a1 and long connecting rod 24a2, the both ends short connecting rod 24a1 respectively with it is rear
Leg upper end and foreleg lower end are hinged, constitute a diagonal line of the quadrangle, shape for the quadrangle；Long connecting rod 24a2
Both ends are hinged with the middle part of back leg lower end and the backboard 22 respectively, position for backboard；
Two shrinking connecting-rod 24a are sleeve type structure, including outer tube and interior bar, and short connecting rod 24a1 includes reducing garment pipe and short
Interior bar, with gear mechanism adjustment length, short interior bar is the ratch 24a3 of with helical rack, and it is helical gear that reducing garment tube end is equipped with with
Hand regulating device 24a4, helical rack and helical gear intermesh, and to guarantee to adjust, mechanism can be self-locking after length, helical gear
Helix angle is answered as small as possible, can be made into worm screw in practical manufacture.To simplify manufacturing process, helical rack and helical gear also can be used straight
Tooth replaces, for this purpose, hand regulating device need to have locking device.
The long interior bar of long connecting rod 24a2 is the polished rod 24a21 equipped with multiple location holes, and it is fixed that long coat tube end is equipped with elasticity
Position pin 24a22, elastic positioning pin are embedded in the length of the fixed shrinking connecting-rod of location hole, press when needing to adjust length flexibly positioned
Pin is allowed to disengage with interior bar.Location hole can also be replaced with sawtooth.
The screw-rod structure 24a23 of with adjusting nut, corresponding housing can also be used in the adjusting of shrinking connecting-rod 24a shortest length
Pipe need to only be made into flat mouth casing, and nozzle contact adjusting nut can position, and see attached drawing 3.
More comfortable when to lie down, backboard 22 is also additionally provided with the pillow 221 hinged with backboard top, pillow be equipped with from
Bolt 2211 is closed, backboard upper end is equipped with the jack 222 matched with on-of bolt, when tablet chair is for when taking a nap after lunch, pillow 221 to be past
It turns over, the jack 222 that on-of bolt 2211 is inserted on backboard positions pillow to bear the weight of afternoon nap head part.
Desk and tablet chair of the present invention match, and upper class hour, desktop turns to horizontal position around desktop hinge, and seat plate is around hinge
Chain goes to horizontal position, and when afternoon nap, desktop turns near vertical position around desktop hinge, to concede afternoon nap space；Backrest
Plate and seat plate around hinge go to the mutual obtuse-angulate angle of cut or backboard and seat plate coexists in a plane and supporting plate around hinge
Go to the mutual obtuse-angulate angle of cut.
Embodiment two
The embodiment of the present invention two is also a kind of folding-type school desk chair, including desk 10 and tablet chair 20, and tablet chair and embodiment one are complete
It is identical, see attached drawing 1,2, desk 10 is basically the same as the first embodiment, and is not existed together and is only that the structure type of desktop support part 14 is
14 b of braced frame, as shown in Figure 5,6, it is hinged with 11 end of desktop, and braced frame is rectangular configuration, and lower end is equipped with fixed
Position foot 14b1, table pedestal 13 is equipped with dimple 131 or locating slot, when desktop is in a horizontal position, angle 14b1 insertion
In dimple 131；When desktop goes to vertical position around desktop hinge 111, the turnover of braced frame 14b around hinge is put down to desktop
Capable position, to fit with desktop；Braced frame is equipped with height adjustment mechanism for adjusting its height, height adjustment mechanism
For the bolt and nut device 14b11 being located on angle 14b1, turn screw rod adjusts height, uses nut locking after mixing up.It can also
The same structure that height is adjusted using the lift connection plate 122 of similar embodiment one, referring to Fig. 1, by rectangular configuration support frame
The vertical edge of frame is set as the form of assembling, and it is effectively high to adjust it with the regulating device 14b12 that screw and multiple screw holes cooperate
Degree, screw are each passed through the height that different screw holes can be adjusted in synchronism braced frame with the lift connection plate 122 in embodiment one
Degree.
Embodiment three
The present embodiment adds a set of crank connecting link control mechanism for controlling braced frame 14b tune on the basis of example 2
Whole, more convenient to operate, crank connecting link control mechanism includes mutually hinged controls connecting rod 14b2 and controls crank 14b3,
Hingedly on the support frame, the control free end crank 14b3 is hinged on table cabinet 12 for the free end controls connecting rod 14b2, works as controls connecting rod
When 14b2 and the control crank 14b3 angle of cut are 180 degree, braced frame 14b and vertical, desktop are in a horizontal position, and work as control
When connecting rod 14b2 and the control crank 14b3 angle of cut are close to 0 degree, braced frame 14b and the desktop angle of cut are bonded also close to 0 degree with desktop
Vertical position is hung down under Gravitative Loads together, as shown in Figure 8,9, Fig. 8,9 be desk backward schematic diagram, in fact,
Desk of the invention is that front and back is symmetrical, if table cabinet front and back is designed with door or gating, the forward and backward of desk do not exist
Be not different in structure, only table cabinet the left side and the right difference, so, all desks can be used in teaching an indoor left side
Column or right column.
Example IV
The present embodiment and embodiment two are essentially identical, do not exist together and are only that the desktop support part 14 of desk 10 is reduced to support link
14c, support link are doubling connecting rod 14cb, and doubling connecting rod 14cb is two mutually hinged short connecting rods, their free end point
It is not hinged on desktop 11 below and on the inside of table cabinet 12, desktop 11 is supported on when the angle that two doubling connecting rods open is at 180 degree
Horizontal position, when they hang down into vertical position by self weight to desktop 11 when folding to close to 0 degree, as shown in Figure 10,11.
Doubling connecting rod 14cb also can transform to bayonet connecting rod 14ca, the one end bayonet connecting rod 14ca be hinged on desktop 11 in the following,
The other end is equipped with bayonet and is stuck on the pin 124 of table cabinet 12 to which desktop 11 is supported on horizontal position, and bayonet is removed column
When pin 124, desktop 11 loses support and is not hanging to vertical position naturally, as shown in figure 12.
Embodiment five
The present embodiment is also essentially identical with embodiment two, does not exist together and is only that the desktop support part 14 of the desk 10 is also convertible
For the structure type of rotating bracket 14d, the purpose of the present invention equally can be achieved, for this purpose, setting is needed to fix on table cabinet 12 with table cabinet
Connection crossbeam 123, rotating bracket 14d is connect with the vertical pivot hinge 1231 of crossbeam 123, when rotating bracket 14d plane is gone to
When parallel with the axis of desktop hinge 111 position, desktop 11 is supported on rotating bracket 14d and is in a horizontal position, when turning
When dynamic bracket 14d plane goes to the position vertical with the axis of desktop hinge 111 and is bonded with crossbeam 123, desktop 11 is by being self-possessed
Hang down into vertical position.Figure 13 is the desk schematic top plan view, and in figure, desktop 11 is in a vertical position, rotating bracket 14d
Can be freely rotated around vertical pivot hinge 1231, when afternoon nap, rotating bracket 14d goes to the lower section of crossbeam 123 and is bonded therewith, lie down people with
Desktop, rotating bracket are not just interfere with each other.Upper class hour desktop 11 was first raised to horizontal position or more, then by rotating bracket 14d
It rotates back into the position parallel with the axis of desktop hinge 111 and desktop 11 is supported on horizontal position.
Embodiment six
The present embodiment is a kind of another structure type of tablet chair 20 for folding-type school desk chair, including chair frame 21, backboard
22, seat plate 23, positioning linkage rod 24 and supporting plate 25, backboard 22, seat plate 23 and embodiment one are identical, and chair frame 21 is half hinge formula chair frame
21b, including foreleg 211, column 214 and half hinge seat 215, it is at L-shaped that column is fixedly connected with structure with half hinge seat, foreleg lower end with
The front end of half hinge seat is connected with lower hinge 2151, and 22 top of backboard is connect with the upper end upper hinge 2141 of column 214, under
End and 23 rear end of seat plate are hinged, and the front end of seat plate 23 and front leg upper ends are hinged, and supporting plate 25 and the front end of seat plate 23 are hinged, under
Face is fixed with support frame 251.
The positioning linkage rod 24 is single hinge bar 24b, and the upper end and 22 lower end of backboard are hinged, and lower end is equipped with notch
24b1, column 214 are equipped with the positioning column 2143 matched with notch.
Figure 14 is the side elevation schematic diagram of tablet chair, as it can be seen that making seat plate 23 when foreleg is rotated around lower end hinge backward in figure
When reaching horizontal position, tablet chair at this time is used as seat, uses for attending class, for the stabilization for keeping this state, a latch hook need to be arranged
2142 lock seat plate, and latch hook 2142 is hinged on column, the fore shaft 231 of 23 rear end of seat plate setting one and latch hook cooperation.Currently
When leg rotates forward around lower end hinge reaches seat plate 23 and backboard 22 is in obliquity at 180 degree angle simultaneously, it will determine
The notch 24b1 of position connecting rod 24 lower end is supported on positioning column 2143, then up lifts supporting plate 25, is allowed under its support frame 251
End lands, and tablet chair at this time is used as chaise longue, uses for afternoon nap.An also settable handrail 26 is fixed on foreleg 211 when necessary.
This example tablet chair can be matched with the desk of the above various embodiments.
The various embodiments described above are to realize several specific constructive forms of the method for the present invention, according to the method for the present invention and above-mentioned implementation
Example combines the also variable more specific structures that swap out of well known theory of mechanics knowledge, and details are not described herein.
Claims (10)
1. a kind of folding-type school desk chair, including desk (10) and tablet chair (20), desk (10) includes desktop (11), table cabinet (12)
With table pedestal (13), table cabinet (12) is fixedly connected with table pedestal (13), and tablet chair (20) includes chair frame (21), backboard (22) and sits
Plate (23), their interactions connection, it is characterised in that: desk (10) further includes desktop support part (14), the table cabinet (12)
In vertical refrigerator structure, locker (121) are equipped in the left or right side of desk, cabinet, desktop (11) and table cabinet (12) are used
Desktop hinge (111) connection, the hinged shaft of desktop hinge are in approximately horizontal plane；The chair frame (21) of the tablet chair (20), backrest
Plate (22) is connected with seat plate (23) interaction, and tablet chair (20) further includes for fixing the positioning linkage rod of use state (24)；On
Class hour, desktop turn to horizontal position around desktop hinge, and seat plate around hinge goes to horizontal position, and when afternoon nap, desktop is cut with scissors around desktop
Chain turns near vertical position, and backboard and seat plate around hinge go to the mutual obtuse-angulate angle of cut or backboard and seat plate
The mutual obtuse-angulate angle of cut is gone in the plane that coexists with supporting plate around hinge.
2. folding-type school desk chair according to claim 1, it is characterised in that: the table cabinet (12) of the desk (10) further includes
The lift connection plate (122) being screwed with table cabinet, lift connection plate are equipped with vertically disposed multiple screw holes, screw
Across the height of the different adjustable lift connection plates of screw hole, desktop (11) and the desktop hinge of table cabinet (12) hingedly
(111) it is mounted on the upper end of lift connection plate.
3. folding-type school desk chair according to claim 1, it is characterised in that: the desktop support part (14) of the desk (10)
For jointed connecting rod (14a), including mutually hinged upper connecting rod (14a1) and lower link (14a2), the upper connecting rod upper end (14a1) with
Desktop (11) end is hinged, and hingedly, the length of lower link is approximately equal to the desktop for lower link lower end and the table pedestal (13)
For hinge (111) to the upper connecting rod upper end (14a1) and desktop (11) hinged the distance between hinge, upper connecting rod (14a1) is adjustable
Length link, the sum of it and lower link (14a2) effective length are approximately equal to height when desktop (11) is in a horizontal position from the ground
It spends, bolt (14a3) is installed in upper connecting rod (14a1)；When desktop is in a horizontal position, upper connecting rod (14a1) and lower link
(14a2) angle is 180 degree coexistence vertical position, and bolt (14a3) insertion lower link is fixed its position, when desktop is in vertical
When position, upper connecting rod (14a1) and lower link (14a2) angle are 90 degree, and structure is at L-shaped, lower link be in a horizontal position and close to
Ground.
4. folding-type school desk chair according to claim 1, it is characterised in that: the desktop support part (14) of the desk (10)
Hinged with desktop (11) end for braced frame (14 b), braced frame is rectangular configuration, and lower end is equipped with angle
(14b1), table pedestal (13) is equipped with dimple (131), when desktop is in a horizontal position, angle (14b1) insertion positioning
In nest (131)；When desktop goes to vertical position around desktop hinge (111), the turnover of braced frame (14b) around hinge is arrived and desktop
Parallel position；It is to be located at angle that braced frame, which is equipped with height adjustment mechanism for adjusting its height, height adjustment mechanism,
Bolt and nut device on (14b1) or the regulating device for being located at screw and multiple screw holes in the vertical edge of rectangular configuration
(14b2).
5. folding-type school desk chair according to claim 4, it is characterised in that: the braced frame (14b) of the desk (10)
It further include mutually hinged controls connecting rod (14b2) and control crank (14b3), when controls connecting rod (14b2) and control crank
When (14b3) angle of cut is 180 degree, braced frame (14b) and vertical, desktop are in a horizontal position, as controls connecting rod (14b2)
When with control crank (14b3) angle of cut close to 0 degree, also close to 0 degree, desktop is in vertical position for braced frame (14b) and the desktop angle of cut
It sets.
6. folding-type school desk chair according to claim 1, it is characterised in that: the desktop support part (14) of the desk (10)
For support link (14c), support link is bayonet connecting rod (14ca) or doubling connecting rod (14cb), bayonet connecting rod one end (14ca) hinge
It connects in desktop (11) in the following, the other end, which is equipped on the pin (124) that bayonet is stuck in table cabinet (12), is supported on level for desktop (11)
Position；Doubling connecting rod (14cb) is two mutually hinged short connecting rods, their free end is respectively hinged at desktop (11) below
With on the inside of table cabinet (12), desktop (11) is supported on horizontal position when the angle that two doubling connecting rods open is at 180 degree, when them
Desktop (11) hangs down into vertical position by self weight when doubling.
7. folding-type school desk chair according to claim 1, it is characterised in that: be fixed with crossbeam on the table cabinet (12)
(123), the desktop support part (14) of desk (10) is rotating bracket (14d), is connected with crossbeam (123) with vertical pivot hinge (1231)
It connects, when rotating bracket (14d) plane goes to the position parallel with the axis of desktop hinge (111), desktop is supported on rotation branch
It is in a horizontal position on frame (14d), when rotating bracket (14d) plane goes to the position vertical with the axis of desktop hinge (111)
It is bonded when setting with crossbeam (123), desktop hangs down into vertical position by self weight.
8. folding-type school desk chair according to claim 1, it is characterised in that: the chair frame (21) of the tablet chair (20) is full hinge
Formula chair frame (21a), including foreleg (211), back leg (212) and the seat base hinged with foreleg, back leg (213), side-looking direction
Perspective view is a quadrangle, and the lower end and back leg upper end of the backboard (22) are hinged;
The positioning linkage rod (24) is shrinking connecting-rod (24a), including short connecting rod (24a1) and long connecting rod (24a2), short connecting rod
The both ends (24a1) are hinged with back leg upper end and foreleg lower end respectively, constitute a diagonal line of the quadrangle, are used for described four
The setting of side shape；The both ends long connecting rod (24a2) are hinged with the middle part of back leg lower end and the backboard (22) respectively, are used for backboard
Positioning；
The backboard (22) further includes the pillow hinged with backboard top (221), and pillow is equipped with on-of bolt (2211),
Backboard upper end is equipped with the jack (222) matched with on-of bolt.
9. folding-type school desk chair according to claim 8, it is characterised in that: the shrinking connecting-rod (24a) is bushing type knot
Structure, including outer tube and interior bar, interior bar are the ratch of the polished rod of with location hole or the screw rod of with adjusting nut or with helical rack, with
Their matched outer tubes are respectively the casing or flat mouth casing or the helical gear hand regulating device of with of with elastic positioning pin
Casing.
10. folding-type school desk chair according to claim 1, it is characterised in that: the chair frame (21) of the tablet chair (20) is half
Hinge formula chair frame (21b), including foreleg (211), column (214) and half hinge seat (215) being fixedly connected with column, foreleg lower end
Hinged with the front end of half hinge seat, backboard (22) top and the upper end of column (214) are hinged, lower end and the seat plate
(23) rear end is hinged, and the front end of seat plate (23) and front leg upper ends are hinged；
The tablet chair (20) further includes supporting plate (25), and supporting plate (25) and the front end of seat plate (23) are hinged, is fixed with support frame below
(251);
The positioning linkage rod (24) is single hinge bar (24b), and the upper end and the backboard (22) lower end are hinged, and lower end is equipped with slot
Mouth (24b1), column (214) are equipped with the positioning column matched with notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910109151.3A CN109619834A (en) | 2019-02-04 | 2019-02-04 | Folding-type school desk chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910109151.3A CN109619834A (en) | 2019-02-04 | 2019-02-04 | Folding-type school desk chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109619834A true CN109619834A (en) | 2019-04-16 |
Family
ID=66065020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910109151.3A Pending CN109619834A (en) | 2019-02-04 | 2019-02-04 | Folding-type school desk chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109619834A (en) |
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| CN113729407A (en) * | 2020-05-30 | 2021-12-03 | 胡星昭 | Folding type dual-purpose desk for lying and afternoon nap |
| CN114468566A (en) * | 2022-01-24 | 2022-05-13 | 江西晶亮实业有限公司 | Foldable afternoon nap student tablet chair |
| RU226120U1 (en) * | 2023-11-09 | 2024-05-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Липецкий государственный педагогический университет имени П.П. Семенова-Тян-Шанского" | TABLE-DESK |
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