CN2213325Y - Eyesight protector - Google Patents

Abstract

The utility model relates to a device against the myopia, which has the advantages of comfortable use and large range of service time and occasion. An ornament adorned in front of the chest is orderly and electrically connected with a rolling switch, a musical sheet, and a buzzer. The conduction and the interruption of the circuit is decided by a small steel ball in a sliding chute of the rolling switch. When the user exceeds a limited range of anterior tilt or hypsokinesis. The small steel ball is rolled in the sliding chute, the circuit is switched on, and the buzzer sounds for causing the attention of the user. When a position limiter arranged on the rolling switch is rotated, the rolling of the small steel ball is restrained. The protector is enabled to lie in resting state. The limit of the distance between the eyes of the user and the reading or writing can be adjusted by that a support frame of angle modulation arranged on the back cover of a bent basal plate is adjusted.

Description

Eyesight protector

The utility model relates to a kind of pre-myopia prevention device.

Twenty-twenty people will put on one's glasses, eyeshade comes pre-myopia prevention very inconvenient, and pre-myopia prevention desk lamp also exists environment for use, the too big deficiency of limitation service time.

The purpose of this utility model provides a kind ofly uses vision protector more, wears its people, and eyes can be protected easily in more time and occasion.

The utility model be achieved in that substrate back fixedly musical film, buzzer and rolling switch " " the shape support.Rolling switch " " utmost point of battery is electrically connected on shape support and the musical film, the chute of rolling switch is electrically connected with the contact of musical film, and buzzer and musical film are electrically connected." " shape support and chute two ends insulation ground is bonding, stop be stuck in "

" in the middle of the shape support, place a little steel ball in the chute under it.In the front of substrate one ornament is set, the back is provided with a substrate bonnet that shields, and the angular adjustment support is fixed on center, the substrate bonnet back side vertically with safety pin.Not in the front, when stop was in spacing state, stop was limited to chute bottom with little steel ball to the user with protector, make it can not in "

" shape support lower edge contact, circuit can not conducting, and buzzer is sounding not.When stop was in open state, the inclination of user's health was rolled little steel ball in chute, after the angle of inclination surpasses certain limit, little steel ball be pressed over chute and "

" shape support lower edge, circuit turn-on, the buzzer sounding reminds the user to note myopia.The user can regulate body inclination angle or the elevation coverage that support limits toot sound by angle of bend, thereby the distance that should keep between control eyes and read-write thing plays the effect of pre-myopia prevention.

Owing to adopted such scheme; Wear the comfort and recreational enhancing of protector, the variation that also becomes of the function of protector, it both can be used as trinket, also myopia prevention vision protection in advance, the while can also be prevented the bad deformation of spinal column that causes of teenager's sitting posture.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the back view of protector.

Fig. 2 is the rolling switch structural map.

Fig. 3 is a substrate bonnet structural map.

Fig. 4 is that the middle direction of arrow of Fig. 1 (enclosing bonnet) is along A-A line sectional view.

1. brooch, 2. substrates 3. among the figure "

" shape support 4. chutes 5. little steel ball 6. stops 7. musical films 8. buzzers 9. substrate bonnets

10. angular adjustment support 11. safety pins

In Fig. 1, a brooch (1) is fixed in the front of plastic base (2), and brooch can be three-dimensional, also can be the pattern on plane.The substrate back fixedly on musical film (7), buzzer (8) and the rolling switch " " shape support (3)."

" lower edge of shape support (3) and musical film (7) utmost point of going up battery is electrically connected, the bottom of chute (4) is electrically connected with the contact on the musical film, and buzzer (8) is electrically connected with musical film.

In figure (2) "

" shape support (3) and chute (4) be with the good material compacting of scale copper or other conductions; the rectangle copper sheet of rolling on the chute both sides is slightly larger than the width of arc chute to be placed on the diameter of the medium and small steel ball of groove (5), and the depth capacity of chute (being equivalent to the wide of rectangle copper sheet) slightly equals little diameter of the steel ball.The diameter of little steel ball be not more than 6mm be advisable chute (1) two ends with " " shape support (3) insulation ground is bonding, the top of chute rectangle copper sheet should be lower than slightly "

" shape support lower edge, can not contact with it." " thickness (length that is equivalent to the rectangle copper sheet) of shape support preferably is no more than 15mm." " shape support (3) lower edge and chute (4) inner face near "

" shape support place must keep excellent conducting performance.Bottom in the chute (4) can be stained with skim cushion pad (not drawing among the figure), and it can be a foam-rubber cushion, can be other materials also, increases the friction between little steel ball (5) and the chute, prevents that slight vibrations from ceaselessly rock little steel ball.Cylindric stop (6) is set directly over the chute (4), and it can be plastics, also can be other insulating material, he by rotating shaft be fixed on "

" on the shape support (3), and flexibly be stuck in wherein.Stop (6) wants rip cutting to go a suitable part, make when the chute (4) of tangent plane below it, little steel ball (5) can with "

" shape support (3) lower edge contact and don't as for skidding off outside the groove.After tangent plane leaves chute, little steel ball be limited at chute bottom can not with "

" the lower edge contact of shape support (3).

In Fig. 3, safety pin (11) is stuck in the center, the back side of substrate bonnet (9) vertically with angular adjustment support (10).Safety pin can be one piece of purl, and the angular adjustment support can be made with softer sheet iron, also can use more flexible other materials.Vertically fixing safety pin can make not that the protector in the front keeps enough stability, and after being unlikely to rock the substrate bonnet and being fixed on the substrate, stop (6) should partly expose outside, is convenient to carry out adjusted.

In Fig. 4, stop (6) is in open state, and tangent plane is over against the chute (4) of below, and angle of bend is regulated support (10), makes protector and wearer's body keep a suitable angle.When body leans forward or swings back when surpassing a certain warning angle, little steel ball (5) abut against "

" on shape support (3) lower edge and the chute (4), circuit turn-on, buzzer sounding alarm.

Claims (5)

1, a kind ofly use vision protector, it is made up of brooch, safety pin more, and it is characterized in that has a substrate behind the brooch, and substrate is provided with a rolling switch, a musical film and a hummer; The substrate bonnet can be fixed on the substrate, except that safety pin, also is provided with the angular adjustment support on the bonnet.

2, use vision protector by claim 1 is described more, it is characterized in that rolling switch by "

" shape support, chute, little steel ball and stop form; "

" shape support and chute make with copper sheet, both ground that insulate is bonding; Stop is the cylindric ambroin piece that a part is gone in a rip cutting.

3, use vision protector by claim 1 is described more, it is characterized in that the bottom in the rolling switch chute is stained with the skim cushion pad, it can be a foam-rubber cushion, also can be other material.

4, use vision protector by claim 1 is described more, it is characterized in that the angular adjustment support on the substrate bonnet is to make with softer sheet iron, be easy to bending.

5, use vision protector, its feature to be that also safety pin is to be stuck in vertically on the substrate bonnet with the angular adjustment support by claim 1 is described more.

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