CN202525488U

CN202525488U - Sight protection plate

Info

Publication number: CN202525488U
Application number: CN2012200476777U
Authority: CN
Inventors: 罗妙唯
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-08
Filing date: 2012-02-08
Publication date: 2012-11-14
Anticipated expiration: 2022-02-08

Abstract

The utility model relates to the technical field of daily sight protection products, in particular to a sight protection plate. The sight protection plate mainly comprises a protection plate body, a bracket and a bracket fixing device; the protection plate body is adjustably mounted at the upper part of the bracket; the lower part of the bracket is fixed on the edge of a desk through the bracket fixing device; and the protection plate body is fixed at the upper part of the bracket through the coordination of a first bolt and a grab at the upper end of the bracket and a first nut. After adoption of the technical scheme, the protection plate body serves to shield sight in a nearer viewing distance, which is equal to improving sight level and forcing students to sit upright; the protection plate body is mounted on the bracket in an adjustable manner so as to be suitable for users of different heights; and the sight protection plate can prevent unhealthy postures like leaning forwards of a body and head defection caused by fatigue or other factors, effectively coordinates the posture of a user so as to avoid fatigue of the eyes, and further can effectively prevent myopia, crookback, cervical spondylosis, spondylodynia and the like.

Description

The sight protectio plate

Technical field;

The utility model relates to commodity sight protectio product technical field, refers in particular to a kind of sight protectio plate.

Background technology:

At present,, cause them just incorrect and produce myopia from read-write posture as a child because that students in middle and primary schools learn is heavy, the existing several hundred million people's myopia of China, and go from bad to worse, as not being added on control, there is the industry of visual demand will be difficult to find the people! To this situation, there are many people to design various sight protectio products at present.A kind of is with circuit control, for example: through principles such as infrared ray or ultrasonic reflections, and when sighting distance is too near, the circuit sound that gives a warning.Another kind is to block head with the form of shelf, lies prone too lowly when stoping pupil reading and writing.Before a kind of sound that gives a warning; Can distract the attention of the students, and the circuit board after using battery in a large number and using all can pollute environment, complicated circuitry has been gone bad the bad product of maintenance and has then been reported and ruin; Need maintenance cost in the use, the utility model belongs to a kind of method in back.If only control sighting distance, the back is a kind of should to be reasonable method, but existing technology also comes with some shortcomings; The Chinese patent product that the for example existing patent No. is ZL200620036790.X and ZL200820174727.1; All be product, but they have weak point:, can not move for the homework book of large paper edition because protective device directly is fixed on the desktop edge backward; Eyes are far away from opening the homework book top greatly, write and can feel uncomfortable here; Some student's head strides across protective device and lies prostrate read-write besides, and the utility model has been done improvement to these aspects, and former patent ZL2008200493668 has also been done improvement, and clamping is more convenient and firm, protects more effective.

Summary of the invention:

The utility model purpose is to overcome the deficiency of the said goods or technology, provides a kind of simple in structure, the sight protectio plate of handling ease.

For solving the problems of the technologies described above; The utility model has adopted following scheme: this sight protectio plate mainly is made up of baffle, support and bracket fixing device; The rack-mount portion of described baffle scalable, the support bottom is fixed on an edge through bracket fixing device.

Described baffle through first bolt and the first nut matching and fixing on support top.

There is a top jaw piece described baffle upper end, prevents that student's chin from striding across baffle and lying prostrate read-write topmost, and top jaw piece has certain width, 30mm for example, and if top jaw piece then can obstruct the view too wide; Chin is if stride across baffle, and top jaw piece withstands lower jaw, and head just volt does not go down, and should be used for seeing from existing sight protectio product, finds that some student's head strides across protective device and lies prostrate read-write, has influenced protective effect.Offer hole, garden and square hole that several are used to regulate itself and support assembling height on the baffle; Offer on the described support with baffle on the through hole that cooperates of hole, garden, cantilever tip has a grab, blocks the square hole on the baffle, first bolt passes through hole and the hole, garden on the baffle on the support and cooperates with first nut baffle is fixed on the support; Hook structure is saved a bolt than former patent ZL2008200493668; Structure is more firm, and the support bottom is designed to a U type, and the table edge is inserted in U type mouth bottom; Large paper edition can move into U type mouth top; Like this, can be because of the sight protectio plate be installed on the table, during reading/writing distance large paper edition top far away and feel uncomfortable.

Described bracket fixing device comprises: matrix anchor clamps, second bolt, second nut, ∩ type pad, screw and clamp bolt hole; With screw pass the clamp bolt hole the matrix clamps in the table bottom surface; The support bottom penetrates in the matrix anchor clamps mouth, tightens second bolt and withstands ∩ type pad, and ∩ type pad withstands support again; Fixing on the table support; The effect of ∩ type pad is that on the one hand second nut is hidden into ∩ type pad the inside and can not be rotated, and ∩ type pad is put into when being screwed into second bolt in the matrix anchor clamps and can not be rotated, and prevents that on the other hand second bolt top hinders support.

Described bracket fixing device comprises: G type anchor clamps, second bolt, second nut, bolt cover and block; Second nut places in the G type anchor clamps, and block is positioned at G type anchor clamps mouth lower limb, and its effect is to prevent to tighten or the rotation of second nut when unclamping second bolt; The support bottom is fixedly connected with G type anchor clamps upper end, and second bolt is tightened at G type anchor clamps insertion table suitable for reading edge; G type clamps on the table, thereby fixing on the table support, the top of second bolt is equipped with the bolt cover; The effect of bolt cover is: increase fastening area on the one hand, prevent a wound table bottom surface, second bolt top on the other hand.

Described bracket fixing device comprises: the 3rd bolt, the 3rd nut, the 3rd bolt hole, screw and bracket screw hole; Offer the bolt hole that the 3rd bolt passes on the table; The 3rd bolt inserts this hole, and support is tightened the 3rd nut that cooperates with the 3rd bolt through the 3rd bolt hole of bottom the 3rd bolt of packing into; Pass the bracket screw hole of support bottom again with screw, fixing on the table support.

Described support and bracket fixing device comprise: support, first bolt hole, long spiro nail, U type anchor clamps, second bolt, the second nuts and bolt cover; Offer on the support with baffle on corresponding some first bolts hole in hole, garden, first bolt passes first bolt hole and the hole, garden on the baffle on the support and cooperates with first nut baffle is fixed on the support.This supporting structure is simple, is suitable for not having child's use of large paper edition books or homework book; The support lower end is fixed on the U type anchor clamps through long spiro nail; Feeding through second bolt with U type clamps on the table, thereby fixing on the table support, the boss on the U type anchor clamps is in order to sink to the long spiro nail head, U type anchor clamps and desktop better to be fitted, clamping is firm.

Described bracket fixing device comprises: support, the 4th bolt, the 4th bolt hole and otch; Be opened in the support lower side and be used to place the otch of nuts and washers; The 4th bolt and in otch, vertically offer and be used for the 4th bolt hole that the 4th bolt passes, above-mentioned nuts and washers cooperates with the 4th bolt that passes table and the 4th bolt hole to be fixed support on the table.

Offer on the baffle with support on through hole and the corresponding shifting chute of grab, grab blocks shifting chute, first bolt passes down shifting chute and cooperates with first nut baffle is fixed on the support; Or offer on the baffle with support on the corresponding shifting chute of first bolt hole, first bolt passes shifting chute and cooperates with first nut baffle is fixed on the support, can adjust the horizontal level of baffle through shifting chute.

Described baffle comprises stator and the pleated sheet that is articulated through loose-leaf, and wherein stator is connected with support; Between stator and pleated sheet, positioner is set, this positioner comprises: be installed in the location shank on the stator and be fixed on the pleated sheet and the locating hole that cooperates with the location shank.

After the utility model adopted technique scheme, the effect of its baffle was to block the too near sight line of sighting distance, has been equivalent to improve the height of sight line, forced student's health of sitting straight.It is rack-mount that wherein baffle adopts adjustable way, to adapt to the user of different heights.

The children that the utility model can be used for no large paper edition homework book below the preschool class use, and sight protectio will be picked up from the doll, and is just incorrect from the small letter posture, and this bad habit will be difficult to improve in developmental process.

Owing to the classroom desk has been installed the sight protectio plate, for the classmate that need lie prostrate the table rest noon (rest of volt table can influence healthy, please not want long-time volt table and has a rest), resting guard can depart from middle.Stool can be translated on the back table backward or translates into the right and left at own seat when sweeping health, like this, can very big influence not arranged because of vision protection device has been installed.If feel uncomfortable really, the utility model also provides baffle movable structure: the one, on baffle, open shifting chute, and can move about baffle, need hand-tight make-up this moment or unclamp the nut that bolt connects.Another is that baffle is divided into two, connect with loose-leaf, wherein one rotatable, normally use and turn over and can insert locating hole to backstay behind the certain angle and fix.

The user in use because the sight protectio plate is installed, it blocks the too near sight line of sighting distance, has been equivalent to improve the height of sight line.In addition, the utility model has also adopted U type bearing, and books or homework book can move in U type bearing mouth, can pass with the books that make the user or homework book that baffle is following to be moved, and for 16 homework books opened etc., can place the comfortable position of writing.In a word, the utility model can prevent owing to forward lean appears in tired or other reason, faulty postures such as head deflection, and effective coordination user's posture is avoided eye fatigue, thereby effectively prevents myopia and hunchback, prevents that the cervical vertebra spondylodynia from sending out etc.

The utility model has been realized the regulation of State Education Commission about pupil reading and writing posture " chest is from table one fist, and eyes are from books or homework book one chi ".

Description of drawings:

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the stereogram of the utility model embodiment one;

Fig. 2 is the three-dimensional exploded view of Fig. 1;

Fig. 3 is the stereogram of the utility model embodiment two medium-height trestle fixtures part;

Fig. 4 is the stereogram of the utility model embodiment three medium-height trestle fixtures part;

Fig. 5 is the stereogram of the utility model embodiment four medium-height trestles and bracket fixing device part;

Fig. 6 is the stereogram of the utility model embodiment five medium-height trestle fixtures part;

Fig. 7 is the stereogram of baffle part among the utility model embodiment six;

Fig. 8 is the rearview of baffle part among the utility model embodiment seven.

The specific embodiment:

See Fig. 1,2, present embodiment one mainly is made up of baffle 1, support 2 and bracket fixing device.There is a top jaw piece 10 baffle 1 upper end, prevents that student's chin from striding across baffle 1 and lying prostrate read-write topmost, and baffle 1 scalable is installed in support 2 tops, and support 2 bottoms are fixed on table 4 edges through bracket fixing device.Particularly, baffle 1 through first bolt 12 and first nut, 13 matching and fixing on support 2 tops: offer hole, garden 11 and square hole 15 that several are used to regulate itself and support 2 assembling height on the baffle 1; Offer on the described support 2 with baffle 1 on the through hole 21 that cooperates of hole, garden 11; There is a grab 26 on support 2 tops; Blocking square hole 15, the first bolts 12 on the baffle 1 passes through hole 21 on the support 2 and cooperates with first nut 13 with hole, garden 11 on the baffle 1 baffle 1 is fixed on the support 2; Support 2 bottoms are designed to a U type, and table 4 edges are inserted in U type mouth 20 bottoms, and large paper edition can move into U type mouth 20 tops, like this, can be because of sight protectio plate 1 be installed on the table 4, during reading/writing distance large paper edition top far away and feel uncomfortable.

Through hole 21 and grab 26 on the corresponding support 2 are distinguished with square hole 15 in hole, garden 11 on the baffle 1, are used to regulate the height of baffle 1, and the student who is suitable for different heights uses.

Present embodiment medium-height trestle fixture comprises: matrix anchor clamps 3, the second bolts 30, the second nuts 31, ∩ type pad 33, screw 5 and clamp bolt hole 36; Pass clamp bolt hole 36 with screw 5 and be fixed on table 4 bottom surfaces to matrix anchor clamps 3; Support 2 bottoms penetrate in 3 mouthfuls of the matrix anchor clamps, tighten second bolt 30 and withstand ∩ type pad 33, and ∩ type pad 33 withstands support 2 again; Be fixed on support 2 on the table 4; The effect of ∩ type pad 33 is that on the one hand second nut 31 is hidden ∩ type pad 33 the insides and can not be rotated, and ∩ type pad 33 is put into when being screwed into second bolt 30 in the matrix anchor clamps 3 and can not be rotated, and prevents that on the other hand second bolt, 30 tops hinder support 2.

See Fig. 3, present embodiment two medium-height trestle fixtures comprise: G type anchor clamps 6, the second bolts 30, the second nuts 31, bolt cover 32 and block 61; Second nut 31 places in the G type anchor clamps 6, and block 61 is positioned at 6 mouthfuls of lower limbs of G type anchor clamps, and its effect is to prevent to tighten or the rotation of second nut 31 when unclamping second bolt 30; Support 2 bottoms are fixedly connected with G type anchor clamps 6 upper ends; Second bolt 30 is tightened at G type anchor clamps 6 insertion tables suitable for reading 4 edges, is fixed on G type anchor clamps 6 on the table 4; Thereby be fixed on support 2 on the table 4; The top of second bolt 30 is equipped with bolt cover 32, and the effect of bolt cover 32 is: increase fastening area on the one hand, prevent wound table 4 bottom surfaces, second bolt, 30 top on the other hand.

See Fig. 4, present embodiment three medium-height trestle fixtures comprise: the 3rd bolt 23, the three nuts 22, the three bolts hole 25, screw 5 and bracket screw hole 24; Offer the bolt hole that the 3rd bolt 23 passes on the table 4; The 3rd bolt 23 inserts this hole; Support 2 is through the 3rd bolt hole 25 of bottom the 3rd bolt 23 of packing into; Tighten the 3rd nut 22 that cooperates with the 3rd bolt 23, pass the bracket screw hole 24 of support 2 bottoms again with screw 5, be fixed on support 2 on the table 4.

See Fig. 5, present embodiment four medium-height trestles and bracket fixing device comprise: support 7, the first bolts hole 71, long spiro nail 51, U type anchor clamps 34, the second bolts 30, the second nuts 31 and bolt cover 32; Support 7 tops offer with baffle 1 on hole, garden 11 corresponding some first bolt hole, 71, the first bolts 12 pass first bolt hole 71 on the support 7 and cooperate with first nut 13 with hole, garden 11 on the baffle 1 baffle 1 is fixed on the support 7; Support 7 lower ends are fixed on the U type anchor clamps 34 through long spiro nail 51; Feeding through second bolt 30 is fixed on U type anchor clamps 34 on the table 4, thereby is fixed on support 7 on the table 4, and the boss 35 on the U type anchor clamps 34 is in order to sink to the head of screw of long spiro nail 51, U type anchor clamps 34 and desktop better to be fitted, and clamping is firm.

See Fig. 6, present embodiment five medium-height trestle fixtures comprise: support 7, the four bolts 72, the four bolts hole 73 and otch 74; Be opened in support 7 lower side and be used to place the otch 74 of nuts and washers; The 4th bolt 72 and in otch 74, vertically offer and be used for the 4th bolt hole 73 that the 4th bolt 72 passes, above-mentioned nuts and washers cooperate with the 4th bolt 72 that passes table the 4 and the 4th bolt hole 73 support 7 are fixed on 4.

For above-mentioned bracket fixing device of explaining; Support 2 or support 7 use several wood screws fixing (for example for the existing learning desk of family) on the table; Or only be fastened on the steadiness that increases its structure on the table learning desk of desk that uses in the classroom or new production (for example for), or mix with several wood screws and bolt and to be fastened on the table with bolt.

For the technical scheme that support adopts band U type mouth, owing to leave the distance that the table edge has a fist approximately near the one side of human body, this promptly increases with height apart from scalable.Why support adopts U type mouth, is because its bottom of large paper edition books or homework book can move in the U type mouth 20, can far not feel to write uncomfortable from large paper edition homework book top because of eyes like this.For existing desk in the classroom, can hole, countersunk head uses hexagon socket head cap screw to reinforce U type support, if desktop will paste a facing plate when producing table, the outer-hexagonal bolt head can be inserted under the facing plate, though technology is complicated, and the more perfection but the desktop outward appearance seems.

During use, owing on table 4, the utility model has been installed, for the student that need lie prostrate the table rest noon; Produce certain influence owing on the table the utility model being installed; The utility model also provides following scheme: see Fig. 7, in the present embodiment six, offer on the baffle 1 with support 2 on the corresponding shifting chute 14 of through hole 21 and grab 26; Grab 26 blocks shifting chute 14, the first bolts 12 and passes down shifting chute 14 and cooperate with first nut 13 baffle 1 is fixed on the support 2; Or offer on the baffle 1 with support 7 on first bolt hole, 71 corresponding shifting chute 14, the first bolts 12 pass shifting chute 14 and cooperate with first nut 13 baffle 1 is fixed on the support 7, can adjust the horizontal level of baffle 1 through shifting chute 14.

In addition, also can adopt following structure, see Fig. 8, in the present embodiment seven, baffle 1 comprises the stator 16 and pleated sheet 17 that is articulated through loose-leaf 84, and wherein stator 16 is connected with support 2 or support 7; Between stator 16 and pleated sheet 17, positioner 8 is set, this positioner comprises: be installed in the location shank 81 on the stator 16 and be fixed on the pleated sheet 17 and the locating hole 82,83 that cooperates with location shank 81.Present embodiment is divided into two with baffle 1, and connects through loose-leaf 84 hinges.Like this, pleated sheet 17 can rotate, and when normally using location hook 81 is inserted in the locating hole 83, after needs are folded up baffle 1, and pleated sheet 17 is turned over certain angle, inserts locating hole 82 interior getting final product to location shank 81.

Claims

1. the sight protectio plate mainly is made up of baffle (1), support and bracket fixing device, it is characterized in that: the rack-mount portion of described baffle (1) scalable, the support bottom is fixed on table (4) edge through bracket fixing device.

2. a kind of sight protectio plate according to claim 1 is characterized in that: described baffle (1) through first bolt (12) and first nut (13) matching and fixing on support (2) top.

3. a kind of sight protectio plate according to claim 2 is characterized in that: there is a top jaw piece (10) described baffle (1) upper end, offers several on the baffle (1) and is used to regulate itself and support (2) assembling hole, garden (11) and square hole (15) highly; Offer on the described support (2) with baffle (1) on the through hole (21) that cooperates of hole, garden (11); There is a grab (26) on support (2) top; Block the square hole (15) on the baffle (1), first bolt (12) passes through hole (21) and the hole, garden (11) on the baffle (1) on the support (2) and cooperates with first nut (13) baffle (1) is fixed on the support (2); Support (2) bottom is designed to a U type, and table (4) edge is inserted in U type mouth (20) bottom.

4. a kind of sight protectio plate according to claim 1; It is characterized in that: described bracket fixing device comprises: pass clamp bolt hole (36) with screw (5) and be fixed on table (4) bottom surface to matrix anchor clamps (3); Support (2) bottom penetrates in matrix anchor clamps (3) mouth; Tighten second bolt (30) and withstand ∩ type pad (33), ∩ type pad (33) withstands support (2) again, is fixed on support (2) on the table (4); Second nut (31) is hidden ∩ type pad (33) the inside and can not be rotated, and ∩ type pad (33) is put into when being screwed into second bolt (30) in the matrix anchor clamps (3) and can not be rotated.

5. a kind of sight protectio plate according to claim 1; It is characterized in that: described bracket fixing device comprises: second nut (31) places in the G type anchor clamps (6); Block (61) is to prevent to tighten or the rotation of second nut (31) when unclamping second bolt (30), and support (2) bottom is fixedly connected with G type anchor clamps (6) upper end, G type anchor clamps (6) insertion suitable for reading (4) edge; Tighten second bolt (30); Be fixed on G type anchor clamps (6) on the table (4), thereby be fixed on support (2) on the table (4), the top of second bolt (30) is equipped with bolt cover (32).

6. a kind of sight protectio plate according to claim 1; It is characterized in that: described bracket fixing device comprises: offer the bolt hole that the 3rd bolt (23) passes on the table (4); The 3rd bolt (23) inserts this hole, and support (2) is tightened the 3rd nut (22) that cooperates with the 3rd bolt (23) through the 3rd bolt hole (25) of bottom the 3rd bolt (23) of packing into; Use screw (5) to pass the bracket screw hole (24) of support (2) bottom again, be fixed on support (2) on the table (4).

7. a kind of sight protectio plate according to claim 1; It is characterized in that: described support and bracket fixing device comprise: support (7) top offer with baffle (1) on corresponding some first bolts hole (71) in hole, garden (11), first bolt (12) passes first bolt hole (71) and the hole, garden (11) on the baffle (1) on the support (7) and cooperates with first nut (13) baffle (1) is fixed on the support (7); Support (7) lower end is fixed on the U type anchor clamps (34) through long spiro nail (51); Feeding through second bolt (30) is fixed on U type anchor clamps (34) on the table (4), thereby is fixed on support (7) on the table (4), and the boss (35) on the U type anchor clamps (34) is in order to sink to the head of screw of long spiro nail (51).

8. a kind of sight protectio plate according to claim 1; It is characterized in that: described bracket fixing device comprises: be opened in the otch (74) that support (7) lower side is used to place nuts and washers; The 4th bolt (72) and in otch (74), vertically offer and be used for the 4th bolt hole (73) that the 4th bolt (72) passes, above-mentioned nuts and washers cooperate with the 4th bolt (72) that passes table (4) and the 4th bolt hole (73) support (7) are fixed on (4).

9. a kind of sight protectio plate according to claim 1; It is characterized in that: offer on the described baffle (1) with support (2) on through hole (21) and the corresponding shifting chute (14) of grab (26); Grab (26) blocks shifting chute (14), and first bolt (12) passes down shifting chute (14) and cooperates with first nut (13) baffle (1) is fixed on the support (2); Or offer on the baffle (1) with support (7) on the corresponding shifting chute (14) of first bolt hole (71), first bolt (12) passes shifting chute (14) and cooperates with first nut (13) baffle (1) is fixed on the support (7).

10. according to any described a kind of sight protectio plate among the claim 1-9; It is characterized in that: described baffle (1) comprises stator (16) and the pleated sheet (17) that is articulated through loose-leaf (84), and wherein stator (16) is connected with support (2) or support (7); In stator (16) and pleated sheet (17) positioner (8) is set, this positioner comprises: be installed in the location shank (81) on the stator (16) and be fixed on the locating hole (82,83) that pleated sheet (17) is gone up and cooperate with location shank (81).