CN106054406B

CN106054406B - Sitting posture glasses capable of preventing head from excessively deviating during writing and reading

Info

Publication number: CN106054406B
Application number: CN201610657589.1A
Authority: CN
Inventors: 刘东光
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-11
Filing date: 2016-08-11
Publication date: 2020-08-04
Anticipated expiration: 2036-08-11
Also published as: CN106054406A

Abstract

The invention discloses sitting posture glasses capable of preventing excessive deflection of a head during writing and reading, which comprise a front shell and a rear shell, wherein the front shell and the rear shell are respectively provided with a window corresponding to the positions of a left eye and a right eye, a vertical gravity swinging mechanism is arranged below the window, and the area of the window which is shielded by the vertical gravity swinging mechanism can be adjusted. The invention has the advantages that on one hand, the horizontal gravity swing mechanism is arranged, so that when a user leans to the left or right, the eyes are automatically covered; on the other hand, the vertical gravity swing mechanism is arranged, so that the sight of users with different heights can be adjusted to be accurately positioned to 30cm or more from the rear edge of the desktop to books under the natural neck bending state. In addition, the back and front defocusing lens of the retina can be loaded to prevent and control myopia.

Description

Sitting posture glasses capable of preventing head from excessively deviating during writing and reading

Technical Field

The invention relates to glasses for correcting sitting postures, in particular to glasses for correcting sitting postures, which can prevent the head from excessively deviating during writing and/or reading.

Background

As is well known, the incidence of myopia in primary and secondary school students is higher and higher, and the situation is more serious in big cities. According to statistics, the incidence rate of myopia of primary and secondary school students is even up to more than 50%. The prevention and control of myopia of primary and secondary school students is a major social concern because the myopia is easy to cause the retinal hemorrhage and detachment of the eyeground after the development reaches a certain height to cause blindness.

The german professor first demonstrated by primate models that "near" the posterior defocus phenomenon formed at the peripheral retina induces elongation of the ocular axis, which per 1mm length corresponds to an increase of 300 degrees of myopia. When the user looks close, the closer the distance between the eye and the object (such as a desktop) to be watched is, the more serious the peripheral retinal back defocus phenomenon is formed, and the higher the probability of myopia induction is.

It is understood that in the last 10 years, the central eye of Zhongshan in conjunction with the myopia research institutes at the university of Australia, USA, has also demonstrated that "near-sightedness" is a major cause of acquired myopia. Therefore, the method limits the watching distance of the students in middle and primary schools to be too close to the watching distance when the students in middle and primary schools read books, such as writing and reading under the condition of head-off watching or watching distance which is too close to a desktop, and is an effective method for preventing and controlling the acquired myopia of the students in middle and primary schools.

The current popular methods for limiting approach in the market are various, and mainly comprise five types, namely a limited near-jaw support, an ear-hanging type near-posture alarm, a forehead sleeve type sitting posture corrector, a writing board type sitting posture corrector and a bracket picture frame type. The jaw support needs to be clamped at the front edge of the table, and a user needs to place the lower jaw on the jaw support, so that the jaw support has the defect that the user needs to frequently mount and dismount the support. However, the above products all have different degrees of drawbacks:

1. the limit jaw holds in the palm, because the crookedness of neck receives the jaw to hold in the palm the restriction, in order to see the image and characters on the desktop paper of below clearly, the user often needs both eyes to rotate downwards with strength just can see the books on the desktop clearly, so neither facilitate the use, also arouse the eye fatigue easily and aggravate myopia.

2. The principle of the ear-hung type proximity limiter is that a short circuit formed between a small steel ball and a switch of a wind buzzer is utilized to turn on to generate an alarm, when a user rotates the head downwards to read a book to a certain degree, the steel ball rolls forwards, the switch is turned on, and a buzzing alarm is generated. After the head is lifted, the steel ball rolls backwards, namely the switch is turned off, and the buzzer stops. The disadvantage is that it does not give an alarm when the head or chest moves forward in parallel close to the fixation target, and is therefore extremely unreliable.

3. The forehead sleeve type or writing board radar ranging sitting posture corrector utilizes the radar ranging alarm principle to detect the linear distance between a head probe and a desktop or the linear distance between the desktop probe and the head, and when the distance is smaller than a certain number, a buzzing alarm is given out. Therefore, it is not a precise writing posture corrector.

4. The forehead is covered with the gravity type writing posture corrector: the eye-shade is slid forwards when the user lowers his head by using a weight worn on the forehead, and the eye-shade is rotated upwards along the horizontal plane of the eye-shade by the left and right connecting rods, so that the user can be forced to write without excessively lowering his head. The defects are that the distance between eyes and the written book cannot be accurately adjusted to be more than 30cm, and the head-biased writing cannot be prevented.

5. A frame-type writing posture corrector with a supporting frame is characterized in that a supporting frame fixed on the edge of a desk is used, the end of the desk top extends out by about 30cm to mark the position of a book, the upper end of the supporting frame is connected with a glasses frame, and a user can watch and write on a front lower part of the glasses frame. The disadvantages are that the use is very inconvenient, the neck cannot be bent naturally, the lower writing can be seen only by forcibly rotating the eyeball downwards, the fatigue of the eyeball and the neck is easily caused, and therefore, the product sale can not be seen on the market.

In addition, it has been investigated that the situation where more than 90% of the elementary and middle school students "see near" excessively occurs when writing on the desk to complete the job. About 80% of middle and primary school students with myopia are accompanied by a habit of looking aside. It is known that when the head is close to the book for writing and reading, because the two eyes bear inconsistent vision adjusting burden, one or two eyes are more easily myopic, or the two eyes are caused with refractive error, which causes more serious visual impairment.

Despite the above, no wearable posture corrector has been available to date that can simultaneously correct both off-head and over-close gaze writing postures. Therefore, there is a need to develop a wearable mirror-frame type writing posture corrector, which can effectively correct the writing while watching the head, and can limit the writing of books on the desktop from being excessively close to the desktop.

Disclosure of Invention

In view of the shortcomings of the prior art, the invention aims to provide sitting posture glasses for preventing the head from excessively deviating during writing and reading, and on one hand, the glasses are provided with a horizontal gravity swing mechanism which automatically covers eyes when a user leans to the left or right; on the other hand, the vertical gravity swing mechanism is arranged, so that the sight of users with different heights can be adjusted to be accurately positioned to 30cm or more from the rear edge of the desktop to books under the natural neck bending state. In addition, the front defocusing lens can be loaded simultaneously to prevent and control myopia.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a prevent to write, position of head overgauge skew's position of sitting glasses when reading, includes preceding shell and backshell, preceding shell with the backshell all is equipped with the window that corresponds with left and right eye position, the below of window is equipped with vertical gravity swing mechanism, the adjustable sheltering from of vertical gravity swing mechanism the area of window.

It should be noted that the vertical gravity swing mechanism includes a vertical gear set, a connecting shaft, a vertical view-blocking sheet, a clutch silica gel sleeve and an adjusting mechanism, one end of the connecting shaft is connected with the vertical gear set, the other end of the connecting shaft is sleeved at one end of the clutch silica gel sleeve, one end of a rotating shaft of the vertical view-blocking sheet is sleeved at the other end of the clutch silica gel sleeve, and the other end of the rotating shaft of the vertical view-blocking sheet is connected with the adjusting mechanism; and the vertical gear set is hung with a vertical gravity piece.

It should be further noted that the adjusting mechanism includes a sight line position adjusting knob and a balancer, the balancer is disposed on one side of the sight line position adjusting knob, and the other end of the vertical viewing plate is connected to the sight line position adjusting knob and the balancer in a penetrating manner.

The invention is further provided with a horizontal gravity swing mechanism, wherein the horizontal gravity swing mechanism is located between the windows and comprises a horizontal sector gear, two driven gears, two driven sector gears and two horizontal viewing plates, the two driven gears are respectively located on two sides of the bottom of the horizontal sector gear, one sides of the two driven sector gears are respectively connected with the two driven gears and are oppositely arranged and meshed, the two horizontal viewing plates are respectively connected with the driven gears, and a horizontal gravity piece is hung at the bottom of the horizontal sector gear.

As a preferred technical scheme, the vertical gear set comprises a vertical sector gear, a first driven wheel and a second driven wheel which are sequentially meshed, wherein one end of the connecting shaft is connected with the second driven wheel in a penetrating manner; the vertical gravity piece is hung at the bottom of the vertical sector gear.

In a preferred embodiment, in the horizontal viewing plate, the two driven gears do not contact with the rack of the horizontal sector gear in the non-shielding state.

It needs to be further explained that, still be equipped with preceding defocusing mirror, be equipped with preceding defocusing mirror recess in the window of backshell, preceding defocusing mirror set up in preceding defocusing mirror recess.

As a preferable technical solution, the balancer has the same weight as the vertical weight member.

It should be further noted that the front shell is provided with a slot corresponding to the sight line position adjusting button, and the sight line position adjusting button partially protrudes out of the surface of the slot.

As a preferred technical scheme, a silica gel pad is arranged on one side of the rear shell; when the eye patch is worn, the surface of the silica gel pad is abutted to the peripheral skin of the eye.

As a preferred technical solution, the vertical gravity swing mechanism and the horizontal gravity swing mechanism are disposed between the front shell and the rear shell.

The invention has the beneficial effects that:

1. the horizontal gravity swing mechanism is arranged in the glasses, so that the two eyes can be automatically covered when a user leans to the head leftwards or rightwards. Therefore, the user can be effectively prevented from excessively deviating the head to cause single-eye myopia or binocular ametropia.

2, a vertical gravity swing mechanism is arranged in the glasses, so that the sight of users with different heights can be adjusted to be accurately positioned at the rear edge of the desktop to 30cm or more of books in a natural neck bending state. Thereby preventing and controlling eye fatigue and myopia caused by too short writing distance.

3. The inner surface of the rear part of the spectacle frame can be provided with the front focusing lens around the video screen, thereby strengthening the effect of preventing and controlling the occurrence and the development of myopia.

The invention solves the problem of head-biased writing which cannot be solved by the prior wearable writing posture corrector, utilizes the gravity swinging device in the glasses to limit the distance of the sight line, can generate natural and comfortable downward head-turning position when writing, and can accurately adjust the sight line of a user to a book beyond 30 cm. And optionally placing a peripheral anterior defocusing lens in the posterior lens shell. Therefore, the invention has more comprehensive correction on the sitting posture in the aspect of the writing posture corrector for the teenagers and has greater effect on preventing and controlling the myopia of the teenagers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the horizontal gravity swing mechanism of FIG. 1;

FIG. 3 is a front view of the horizontal gravity swing mechanism of FIG. 2;

fig. 4 is a schematic structural diagram of the vertical gravity swing mechanism in fig. 1.

Reference numerals: a front case 100; a rear case 200; a window 300; a silicone pad 400; an elastic band 500; a horizontal gravity swing mechanism 1; a vertical gravity swing mechanism 2; a connecting column 3; a sight line position adjusting knob 4; a balancer 5; a front defocusing mirror 6; a clutch silica gel sleeve 7; a bearing 8; a horizontal sector gear 11; a driven gear 12; a driven sector gear 13; a horizontal viewing sheet 14; a horizontal weight 15; a vertical gear set 20; a vertical sector gear 21; a first driven pulley 22; a second driven pulley 23; a connecting shaft 24; a vertical viewing mask 25; a vertical weight 26; a rack 111; leaving a void portion 112.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.

As shown in fig. 1, the present invention is a sitting posture glasses for preventing head position from over-deviation during writing and reading, comprising a front shell 100 and a rear shell 200, wherein the front shell 100 and the rear shell 200 are both provided with windows 300 corresponding to the left and right eye positions; further, the vertical gravity swing mechanism and the horizontal gravity swing mechanism are both disposed between the front housing 100 and the rear housing 200, and may jointly form a gravity swing device that is movable and/or freely movable relative to the window, and the window 300 is blocked by rotation of the gravity swing device.

It should be further noted that the vertical gravity swing mechanism and the horizontal gravity swing mechanism are independent mechanisms and are installed in the sitting posture glasses at the same time or alternatively.

As shown in fig. 2, the device comprises a horizontal sector gear 11, two driven gears 12, two driven sector gears 13 and two horizontal viewing sheets 14, wherein the two driven gears 12 are respectively located at two sides of the bottom of the horizontal sector gear 11, one sides of the two driven sector gears 13 are respectively connected with the two driven gears 12 and are oppositely arranged and meshed, the two horizontal viewing sheets 14 are respectively connected with the driven gears 12, and a horizontal gravity piece 15 is hung at the bottom of the horizontal sector gear 11; furthermore, in a normal state, the two horizontal sight shielding sheets are respectively positioned below the window and do not shield the sight of eyes.

Furthermore, the driven gear, the driven sector gear and the horizontal viewing sheet are fixedly connected; when one driven gear rotates, the other driven gear can be driven to rotate by one driven sector gear, so that the horizontal vision shielding sheets below the left and right vision windows are driven to rotate upwards to shield the vision of the vision windows.

As shown in fig. 3, as a preferable technical solution, in order to avoid that the rotation of the horizontal viewing plate triggered by the slight deviation of the head position affects the writing or reading quality, the rack 111 of the horizontal sector gear 11 is not continuously arranged, and only partial racks 111 are respectively arranged at two ends of the horizontal sector gear 11, namely, a hollow part 112 is arranged in the middle of the horizontal sector gear 11, so that the rack 111 of the horizontal sector gear 11 is not contacted with the two driven gears 12 when the horizontal viewing plate 14 is in the non-shielding state; when the head position is greatly deviated, the driven gear 12 on one side must pass through the empty part 112 of the horizontal sector gear 11 before meshing with the rack 111 of the horizontal sector gear 11.

As shown in fig. 2, a connection column 3 is disposed on the surface between the windows 300, and the horizontal sector gear 12 and the driven gear 13 are movably connected to the connection column 3, respectively, that is, the horizontal sector gear 12 and the driven gear 13 can automatically rotate relative to the connection column 3.

It should be further noted that the length of the rack of the horizontal sector gear is such that the horizontal viewing mask can sufficiently block the motion track of the viewing window.

As shown in fig. 4, the vertical gravity swing mechanism 2 includes a vertical gear set 20, a connecting shaft 24, a vertical viewing plate 25, a clutch silica gel sleeve 7 and an adjusting mechanism; further, the vertical gear set consists of a vertical sector gear 21, a first driven gear 22 and a second driven gear 23 which are meshed in sequence; one end of the connecting shaft 24 is connected to the second driven wheel 23 in a penetrating manner, the other end of the connecting shaft 24 is connected to one end of the clutch silica gel sleeve 7 in a sleeved manner, one end of a rotating shaft of the vertical shielding piece 25 is connected to the other end of the clutch silica gel sleeve 7 in a sleeved manner, and the other end of the rotating shaft of the vertical shielding piece 25 is connected with the adjusting mechanism; the vertical weight 26 is suspended from the bottom of the vertical sector gear 21.

Further, as shown in fig. 4, the adjusting mechanism includes a sight line position adjusting button 4 and a balancer 5, the balancer 5 is disposed on one side of the sight line position adjusting button 4, and the other end of the vertical viewing plate 25 is connected to the sight line position adjusting button 4 and the balancer 5 in a penetrating manner.

It should be further noted that, in order to ensure that the sight line position adjusting knob and the balancer are stably connected to the other end of the vertical viewing plate, the sight line position adjusting knob and the balancer may be fixed by using a snap spring.

As shown in fig. 4, further, in order to ensure the rotation performance of the vertical gravity swing mechanism 2, bearings 8 may be respectively disposed at both ends of the connecting shaft 24 and both sides of the sight position adjusting knob 4.

Further, as shown in fig. 4, the clutch silica gel cover 7 cup joint in the pivot of the perpendicular piece 25 that hides and the coupling part of connecting axle 24, it is right to use sight position adjusting button 4 when the perpendicular piece 25 that hides is adjusted, can guarantee that the perpendicular gear train 20 of the other end can not take place to rotate, and in the same way, when perpendicular gear train 20 takes place to rotate under the action of gravity, sight position adjusting button 4 also can not rotate, and this structure has realized passive adjustment (through realizing position adjusting button adjustment) and the mutual independence of initiative adjustment (through the action of gravity of perpendicular gear train), mutual noninterference.

As shown in fig. 1, as a preferred technical solution, a front defocusing mirror 6 is further provided, a front defocusing mirror groove is provided in the window of the rear housing, and the front defocusing mirror 6 is disposed in the front defocusing mirror groove.

In order to ensure that the vertical viewing plate can normally work when the head is positioned excessively downwards and overcome the resistance of the vertical gear set to drive the vertical viewing plate to rotate, the weight of the balancer in the adjusting mechanism is the same as that of the vertical viewing plate, so that the resistance of the vertical viewing plate to rotate is close to zero.

As a preferable technical solution, the front shell is provided with a slot corresponding to the sight line position adjusting button, and the sight line position adjusting button partially protrudes out of the surface of the slot.

As shown in fig. 1, as a preferred technical solution, a silica gel pad 400 is disposed on one side of the rear shell; when the eye-protecting cap is worn, the surface of the silica gel pad 400 is abutted to the peripheral skin of the eye.

As a preferred technical solution, an elastic band 500 having elasticity is provided on the rear case; or the back shell is additionally provided with a Chinese character 'ri' button, and the Chinese character 'ri' button is provided with a head band with adjustable length.

In describing the specific form of the invention, it is to be noted that the correct sitting position refers to: the window of the glasses is not shielded by the horizontal sight-shielding sheet of the horizontal gravity swing mechanism; under the natural neck bending state of users with different heights, the sight line is accurately positioned to 30cm or more from the rear edge of the desktop to the book.

Example 1

When the horizontal gravity swing mechanism is used to adjust the sitting posture. The user wears the sitting posture glasses to write or read, and adjusts the correct sitting posture after wearing. When the head of a user excessively deviates leftwards or rightwards in the process of writing or reading, a horizontal sector gear in the horizontal gravity swing mechanism rotates towards the direction of head deviation under the action of a horizontal gravity piece, then a driven gear on one side and a rack of the horizontal sector gear are driven to rotate actually and timely, the driven sector gear connected with the driven gear rotates downwards, so that the driven sector gear which is arranged oppositely on the other side and meshed with the driven sector gear rotates downwards, and finally a horizontal viewing sheet positioned below a viewing window is driven to rotate upwards, so that part or all of the viewing window is shielded, and the user can immediately correct head deviation and reset the horizontal gravity swing mechanism to the initial position; it should be noted that the degree of blocking of the horizontal viewing mask is linearly related to the degree of head deviation.

It should be further noted that the rack of the horizontal sector gear is provided with two end parts, and the middle part is a hollow part, so that the rotation of the horizontal viewing mask triggered by the natural deviation of the head position can be avoided.

Example 2

When the user lowers the head excessively, the sight line is positioned to be lower than the 30cm from the rear edge of the desktop to a book, the user sees the vertical shielding piece through the window, the sight line shielding formed by the sight line shielding is enough to remind the user to adjust the sitting posture in time, concretely speaking, when the user lowers the head excessively, the vertical sector gear is influenced by gravity, the vertical sector gear and the vertical gravity piece rotate forwards, a first driven wheel meshed with the vertical sector gear starts to rotate at the moment, a second driven wheel also starts to rotate, secondly, the rotating second driven wheel drives the connecting shaft to rotate, the connecting shaft drives the rotation of the clutch silica gel sleeve, and then, the clutch silica gel sleeve simultaneously drives the rotating shaft of the vertical shielding piece to rotate, and finally, the rotation of the vertical shielding piece to the direction of the window is.

The sight line position adjusting button is used for adjusting the rotation angle of the vertical viewing sheet, and particularly, the sight line position can be adjusted by adjusting the angle of the vertical viewing sheet due to the fact that the sight line position adjusting button is arranged in the adjusting mechanism. Specifically, when the sight position adjusting button is rotated, the vertical viewing sheet is driven to rotate, at the moment, the connecting shaft connected with the other end of the vertical viewing sheet rotates in the clutch silica gel sleeve, and the rotating shaft connected with the outer side of the clutch silica gel sleeve is connected with the gear set and does not rotate, so that the vertical viewing sheet is accurately adjusted. It should be noted that, since one end of the vertical viewing plate is connected to the gear set through the clutch silicone sleeve, when the user adjusts the degree of shielding of the vertical viewing plate by using the sight line position adjustment button, only the angle of the vertical viewing plate is changed, but the gear set is not moved. Therefore, the accurate distance that the sight of users with different heights falls on the desktop books can be ensured, and the running state of the gear set can not be changed. .

In addition, when a user writes or reads, the front defocusing lens can be used for strengthening the effect of preventing and controlling the occurrence and the development of myopia.

Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.

Claims

1. A sitting posture glasses for preventing head from excessively inclining during writing and reading comprises a front shell and a rear shell, wherein the front shell and the rear shell are respectively provided with a window corresponding to the left eye part and the right eye part, a vertical gravity swing mechanism is arranged below the window, and the area of the window which is shielded by the vertical gravity swing mechanism can be adjusted; the horizontal gravity swing mechanism is characterized in that a horizontal gravity swing mechanism is arranged between the windows and comprises a horizontal sector gear, two driven gears, two driven sector gears and two horizontal shielding pieces, the two driven gears are respectively positioned on two sides of the bottom of the horizontal sector gear, one side of each driven sector gear is respectively connected with the two driven gears and is oppositely arranged and meshed, the two horizontal shielding pieces are respectively connected with the driven gears, and a horizontal gravity piece is hung at the bottom of the horizontal sector gear.

2. The glasses capable of preventing excessive head deviation during writing and reading according to claim 1, wherein the vertical gravity swing mechanism comprises a vertical gear set, a connecting shaft, a vertical screening sheet, a clutch silica gel sleeve and an adjusting mechanism, one end of the connecting shaft is connected with the vertical gear set, the other end of the connecting shaft is sleeved at one end of the clutch silica gel sleeve, one end of a rotating shaft of the vertical screening sheet is sleeved at the other end of the clutch silica gel sleeve, and the other end of the rotating shaft of the vertical screening sheet is connected with the adjusting mechanism; and the vertical gear set is hung with a vertical gravity piece.

3. The glasses for preventing the excessive inclination of the head during writing and reading as claimed in claim 1, wherein the adjusting mechanism comprises a sight line position adjusting knob and a balancer, the balancer is disposed at one side of the sight line position adjusting knob, and the other end of the vertical viewing plate is connected to the sight line position adjusting knob and the balancer in a penetrating manner.

4. The glasses for preventing over-deviation of head during writing and reading as claimed in claim 2, wherein the vertical gear set comprises a vertical sector gear, a first driven wheel and a second driven wheel which are meshed in sequence, wherein one end of the connecting shaft is connected with the second driven wheel in a penetrating way; the vertical gravity piece is hung at the bottom of the vertical sector gear.

5. The glasses for preventing excessive head deviation in writing and reading as claimed in claim 1, wherein said horizontal viewing mask is in a non-shielding state, and said two driven gears are not in contact with the rack of said horizontal sector gear.

6. The glasses for preventing excessive inclination of head during writing and reading as claimed in claim 1, further comprising a front out-of-focus lens, wherein a front out-of-focus lens groove is arranged in the window of the rear shell, and the front out-of-focus lens is arranged in the front out-of-focus lens groove.

7. The glasses for preventing excessive head deviation in writing and reading according to claim 3, wherein the weight of the balancer is the same as that of the vertical weight member.

8. The sitting posture glasses for preventing the head from being excessively inclined when writing and reading as claimed in claim 3, wherein the front shell is provided with a slot corresponding to the sight line position adjusting button, and the sight line position adjusting button is partially protruded from the surface of the slot.

9. The glasses for preventing over-deviation of head position for writing and reading according to claim 1, wherein the vertical gravity swing mechanism and the horizontal gravity swing mechanism are disposed between the front case and the rear case.