CN108713880A

CN108713880A - A kind of middle and primary schools' read-write desk

Info

Publication number: CN108713880A
Application number: CN201810762544.XA
Authority: CN
Inventors: 张子雅; 田晚秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-07
Filing date: 2018-07-07
Publication date: 2018-10-30

Abstract

The invention discloses a kind of middle and primary schools to read and write desk, it is made of desk drawer, desk chassis and read-write dissuasion device.Four bolts, opposite with four nuts on chassis are arranged in bottom of drawer of school desk downwards.Chassis top setting square frame, frame center setting central gear, central gear and the nut gear on table leg top intermesh, nut gear are driven to rotate synchronously.Setting gear, internal setting nut, the annular ball orbit of bottom surface setting outside nut gear.Table leg setting is in square frame quadrangle, and top is equipped with setting plane bearing lower railway in cylinder card slot, card slot.Nut gear is intermeshed after table leg upper end synthesizes plane bearing with central gear.Ease rotation nut gear, you can realize desk drawer integral elevating.Desk drawer medial surface is additionally provided with read-write dissuasion device, read-write dissuasion device is made of butterfly pallet, stud, nut and hollow cylinder, whole and nut intermeshes each other for butterfly pallet and stud, and the lifting of pallet is realized by Rotary tray.Pallet can hold human body chin, eyes and desktop is prevented excessively to contact.Entirety, stud are trapped in cylindrical inside after declining each other for nut and hollow cylinder.Using read-write desk, it can effectively adjust students in middle and primary schools and read and write posture, prevent adolescent myopia, promote teenagers healthy growth.

Description

A kind of middle and primary schools' read-write desk

Technical field：

The present invention relates to the read-write desks that a kind of middle and primary schools are applicable in, and use this desk in middle and primary schools, can form good Read-write custom, pre- myopia prevention, promote teenagers healthy growth.

Background technology：

Children are the flowers of motherland, and teenager is the future of motherland, in national 1,400,000,000 populations, 300,000,000 be children and Teenager, they are in the crux period of physical and mental development, are to study, the important stage to enlarge one's knowledge, they have 80% Time is spent in school, and desk is the cradle that they stimulate oneself to study and grow up, and is the main company in their school lifes, Good read-write is formed using desk to be accustomed to, and is the important measures of pre- myopia prevention and promotion teenagers healthy growth.

Invention content：

The present inventor has invented a kind of read-write desk that middle and primary schools are applicable, to complete finally by research and design repeatedly The present invention.

The present invention program is one desk chassis of setting below desk drawer, chassis four table legs in lower section and common table leg It is essentially identical, the difference is that behind table leg contact ground, respectively immediately below abduction to desktop quadrangle, to ensure the stability of desk. A square frame is arranged in chassis top, and bearing is arranged above frame diagonal line intersection, and installation one can be freely rotated Gear.The frame quadrangle place opposite with hollow table leg, is respectively set a nut gear, and nut gear and central gear are mutual It is meshed.Four studs that nut gear is internally provided with below nut and drawer intermesh, and arbitrarily rotate two spiral shells of medial surface Desk drawer integral elevating may be implemented in female gear.A nut, the weldering of nut lower section is arranged close to desktop in center on the inside of drawer A hollow cylinder is connect, using desktop and bottom of drawer as supporting point, is fixed on the inside of drawer.Nut is equal with desktop, above nut Stud is set, butterfly pallet is arranged in stud top.Butterfly pallet can be rotated with stud and be lifted.

The configuration of the present invention is simple, easy to use, light turn nut gear, can arbitrarily lifting desk surface, adjust butterfly pallet, be controllable Chin height processed makes eyes and desktop keep certain distance.To form the good read-write custom of teenager.

It is described further below in conjunction with the accompanying drawings：

Description of the drawings：

Fig. 1 is bottom surface of drawer schematic diagram；

Fig. 2 is chassis top plan view；

Fig. 3 is desk medial surface schematic diagram；

Specific implementation mode：

A square frame (2), the frame outside length of side and the wide phase of drawer is arranged in bottom surface in desk drawer shown in Fig. 1 Deng, frame diagonal line (5) interconnection, four studs (1,3,4,6) of setting at diagonal line and frame quadrangle intersection center, spiral shell Four nut gears are intermeshed on column and chassis, pass through rotating nut gear integral elevating desk drawer.

Fig. 2 shows desk chassis top be arranged a square frame (12), it is identical as bottom surface of drawer frame.Frame Diagonal line (11) interconnects, and a cylinder is set up in diagonal line intersection, cylindrical exterior bearing set (13), outside bearing Portion is set with central gear (22), and central gear, bearing are equal with inner cylinder top surface.Frame quadrangle and diagonal line intersect center to Four table legs, table legs of lower setting are hollow, and a cylindrical card slot is arranged in top, is used for mounting plane bearing lower railway.Nut teeth It takes turns and gear is set outside (9,15,20,24), plane bearing lower railway is arranged in inside setting nut, bottom surface, after assembling and centre tooth Wheel intermeshes.A square backplate is arranged in chassis surface, identical as square frame size, between frame and backplate, if Set eight pillars (7,10,14,17,18,21,23,26) backplate is fixed, backplate be arranged above nut gear circular hole (8,16, 19,25), four studs enter nut gear by circular hole below drawer.

Desk drawer (32) medial surface center shown in Fig. 3 is equipped with read-write dissuasion device, and read-write dissuasion device is by butterfly pallet (36), stud (37), nut (38) and hollow cylinder (39) composition.Whole and nut is nibbled mutually each other for butterfly pallet and stud It closes.The lifting of pallet is realized by Rotary tray, pallet is of moderate size, be designed beautifully, human body chin can be held, allow eyes and Desktop is kept for one chi.Nut and hollow cylinder are whole each other, and stud (37) is trapped in cylindrical inside after declining.Nut and cylinder Card slot (35,33) is equipped in desktop and bottom of drawer, is stuck on desktop and bottom of drawer, is screwed.

Desk drawer bottom surface is equipped with four studs (31,40), is nibbled mutually with four nut gears (30,42) on chassis respectively It closes, realize drawer lifting by rotating nut gear.Desktop is first adjusted when use, then is adjusted butterfly pallet, ensured to read and write When there are one good posture.

Chassis top center is equipped with central gear (41) and the nut gear (30,42) of four table leg upper ends is intermeshed, By rotating two nut gears (30,42) on the inside of desk, two nut gears in driving desk outside, realizing that drawer integrally rises Drop.Table leg (28,44) is arranged in chassis quadrangle, is a hollow cylinder respectively, when drawer entire lowering, four studs (31,40) are trapped in inside table leg.Table leg upper end is equipped with cylindrical card slot, is used for mounting plane bearing lower railway (29,43), spiral shell Female gear bottom surface is intermeshed after being equipped with plane bearing upper rail, synthesis plane bearing with central gear, is rotated after precession stud Flexibly.Table leg (28,44) bottom end is respectively to (45) abduction immediately below desktop quadrangle, to enhance desk whole machine balancing.Under in table leg It crosses (27) in the left and right sides and outside setting respectively and four legs is interconnected in portion.

Read-write desk provided by the invention is simple in structure, it is easy to use, can effectively adjust students in middle and primary schools read and write posture, Prevent adolescent myopia, promote teenagers healthy growth.

Claims

1. a kind of middle and primary schools read and write desk, it is made of desk drawer, desk chassis, read-write dissuasion device.It is characterized in that：Described Middle and primary schools read and write desk, the stud, nut gear between desk drawer and chassis, provided with elevating function and centre tooth Wheel.Stud setting is intermeshed in one square frame quadrangle of bottom surface of drawer and desk chassis top nut gear, passes through rotation Nut gear realizes drawer integral elevating.Setting gear, internal setting nut, the annular ball of downside setting outside nut gear Ball orbit synthesizes plane bearing on track and chassis, is arranged on table leg top.Table leg is a hollow cylinder, and top is solid It is scheduled on square frame quadrangle, and equipped with cylindrical card slot, is used for mounting plane bearing lower railway.After table leg bottom end contacts ground Immediately below abduction to desktop quadrangle, to ensure desk whole machine balancing.Square nut is arranged on chassis center and table leg in central gear Gear intermeshes, and ensures that four nut gears operate synchronously, realizes desk drawer integral elevating.

2. read-write desk according to claim 1, it is characterised in that：Device is tried to stop in the read-write, is arranged in desk drawer Inside is hit exactly, and card slot is arranged at drawer desktop and bottom surface of drawer, is stuck on desktop and bottom of drawer, is screwed.It reads Dissuasion device is write to be made of butterfly pallet, stud, nut and hollow cylinder.Whole and nut is mutual each other for butterfly pallet and stud The lifting of pallet is realized in engagement by Rotary tray.Pallet is of moderate size, is designed beautifully, and can hold human body chin, allows eyes Kept for one chi with desktop.Nut and hollow cylinder are whole each other, and stud is trapped in cylindrical inside after declining.

Using read-write desk, it can effectively adjust students in middle and primary schools and read and write posture, prevent adolescent myopia, promote juvenile healthy Growth.