CN2283399Y

CN2283399Y - Folding book reading-rack

Info

Publication number: CN2283399Y
Application number: CN 97211393
Authority: CN
Inventors: 赵轩
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-01
Filing date: 1997-03-01
Publication date: 1998-06-10
Anticipated expiration: 2007-03-01

Abstract

The utility model relates to a folding bookshelf used for preventing myopia, which is characterized in that a bottom board is a folder type clamping board formed by that two plastic boards are connected into integration by an upper and a lower n-shaped shafts and a shaft sleeve or a C-shaped shaft and the shaft sleeve or hinges, wherein, a bottom neutral position used for placing books is formed between the upper and the lower n-shaped shafts or between the upper and the lower hinges or by the C-shaped shafts, and a U-shaped flange is arranged respectively at the lower parts of the two bottom boards; support boards sloping outwards for 20 DEG to 30 DEG are arranged on the outer part of the bottom board. When users read books, the books are placed on the bottom boards, so a slope which is in a best angle with eyes is formed. The utility model has the advantages of ray reflection prevention, simple structure, light weight, convenient carrying and eye protection, and is widely suitable for students and intellectuals to use.

Description

Collapsible bookshelf

The utility model relates to a kind of folding bookshelf.

At present, the student is copying textbook, is doing the homework, practises exercise and run into a ubiquitous practical problem often, that is exactly that the sight line that lies in textbook on the desk and student forms 30 °～45 ° error, cause that vision is unclear, vision is painstaking, add outside window or indoor light is easy to written formation reflection and scattering by keeping flat, eyes to the student cause direct infringement, and often this goes down to cause student's hypometropia eye or deepens myopia.

The purpose of this utility model is: provide a kind of student's eyes are formed optimal viewing angle, avoid or reduce light reflecting, simple in structure, in light weight, folding easy to carry props up bookshelf.

The purpose of this utility model is achieved in that collapsible bookshelf comprises base plate, gripper shoe, it is characterized in that base plate be two symmetries dull and stereotyped respectively with two up and down the Jiong oblique crank Z and be arranged on two symmetries dull and stereotyped outside inside the file formula clamping plate that are formed by connecting of the axle sleeve of upper and lower end parts.Inwall bottom or following two exterior angles of inwall at two base plates are respectively equipped with Qian shape crimp, and a with respect to the horizontal plane acclivitous gripper shoe in bottom has been installed in activity respectively in position, edge portion middle and lower part, the outside of two base plates.The gripper shoe that to prop up bookshelf when the student will read a book is outwards rotated; make it become deployed condition perpendicular to base plate from folded state; and the inner face of base plate forms one 30 ° inclined plane with respect to vertical line when the limit that is inclined upwardly of gripper shoe is fitted in horizontal plane; at this moment the bottom of book is put into the rectangle neutral gear place that forms between two Jiong oblique crank Zs; the groove that Qian shape crimp is put in the lower edge of book can form with eyes and be the written of best angle; adhere to using this bookshelf can prevent myopia for a long time, play the effect of protection eyes.

The utility model can utilize Jiong oblique crank Z or oblique crank Z or the two shaped as frame neutral gears that form between the hinge up and down to dispose book, and cartoon character can be drawn or carved in most of middle part of base plate, and is therefore in light weight, uniqueness simple in structure.Triangle and trapezoidal gripper shoe are assembled, can unload to be used for various geometric figures, and the axle sleeve on its edge can be used as the handle by chi.The utility model is easy to make, and cost is low, but both myopia preventions can carry again, easy to use.

Fig. 1 is a structural representation of the present utility model, Fig. 2 is in the schematic side view of plumbness, gripper shoe deployed condition for base plate of the present utility model, Fig. 3 is a vertical view of the present utility model, Fig. 4 is the structural representation of facing of second kind of scheme of the utility model, Fig. 5 looks schematic diagram for the left side of Fig. 4, and Fig. 6 is the front elevational schematic of the third scheme of the utility model.

Below in conjunction with description of drawings embodiment of the present utility model: collapsible bookshelf comprises base plate, gripper shoe, base plate (1) be two symmetrical flat boards use respectively two up and down Jiong oblique crank Z (2) and be arranged on two symmetries dull and stereotyped outside inside the file formula clamping plate that are formed by connecting of the axle sleeve (3) of upper and lower end parts, be respectively equipped with Qian shape crimp (8) in the inwall bottom of two base plates (1) or following two exterior angles of inwall, a with respect to the horizontal plane acclivitous gripper shoe in bottom (4) has been installed in activity respectively in the position, edge portion middle and lower part, outside of two base plates (1).The position, middle and lower part, outside outside of two symmetrical base plates (1) is respectively equipped with two T shape holes (6) up and down, is fixed with hinge axis (5) respectively at the inwall of the middle part, top in each T shape hole (6) base plate (1).Two gripper shoes (4) are made up of a right angle triangle and another piece trapezoidal plate, corresponding two base plates in edge, two places (1) are respectively equipped with axle sleeve (7) in the position of the hinge axis (5) on T shape hole (6) up and down up and down in the position, middle and lower part on the position, middle and lower part of right angle triangle hypotenuse and the long limit of trapezoidal plate, the minor face of right angle triangle and horizontal plane form 30 ° angle, when two parallel edges of trapezoidal plate with respect to the horizontal plane are in plumbness, trapezoidal plate one down hypotenuse and horizontal plane between form 30 ° angle, angle between its another upper inclined surface and any cross section is 45 °, be that two hypotenuses of trapezoidal plate and the angle between the long limit are respectively 60 ° and 45 °, be provided with Casing with pen (9) in two outer ends of Qian shape crimp (8).

Second scheme of the present utility model be base plate (1) for the frame-type symmetry plate emptied by two middle parts with one Oblique crank Z (2 ') and be fixed in top and the bottom, another piece base plate the inside correspondence The file formula clamping plate that the axle sleeve (3 ') of oblique crank Z (2 ') combines.One one side has been installed with respect to outward-dipping 20 °～30 ° of vertical line, the lower edge gripper shoe (4) parallel with horizontal plane with hinge in outside, middle and lower part at two base plates (1).

The 3rd scheme of the present utility model is two base plates (1), two hinges connections up and down, and the rectangle cylindrical void has been drawn at the position between its corresponding two hinges, is respectively equipped with Qian shape crimp on the both sides, upper edge of underneath hinges.The utility model base plate (1) and gripper shoe (4) are used the plastics cast molding.

Claims

1, collapsible bookshelf comprises base plate, gripper shoe, it is characterized in that base plate (1) for use respectively by two symmetrical flat boards two up and down Jiong oblique crank Z (2) and be arranged on two symmetries dull and stereotyped outside inside the file formula clamping plate that are formed by connecting of the axle sleeve (3) of upper and lower end parts, be respectively equipped with Qian shape crimp (8) in the inwall bottom of two base plates (1) or following two exterior angles of inwall, a with respect to the horizontal plane acclivitous gripper shoe in bottom (4) has been installed in activity respectively in the position, edge portion middle and lower part, outside of two base plates (1).

2, according to claim 1 bookshelf, the position, middle and lower part, outside outside that it is characterized in that two symmetrical base plates (1) is respectively equipped with two T shape holes (6) up and down, is fixed with hinge axis (5) respectively at the inwall of the middle part, top in each T shape hole (6) base plate (1).

3, according to claim 1 bookshelf, it is characterized in that two gripper shoes (4) are made up of a right angle triangle and another piece trapezoidal plate, corresponding two base plates in edge, two places (1) are respectively equipped with axle sleeve (7) in the position of the hinge axis (5) on T shape hole (6) up and down up and down in the position, middle and lower part on the position, middle and lower part of right angle triangle hypotenuse and the long limit of trapezoidal plate, the minor face of right angle triangle and horizontal plane form 30 ° angle, trapezoidal plate one down hypotenuse and horizontal plane between form 30 ° of angles, its another upper inclined surface is 45 ° with angle between any cross section.

4, according to claim 1 bookshelf, it is characterized in that base plate (1) for the frame-type symmetry plate emptied by two middle parts with one

Oblique crank Z (2 ') and be fixed in top and the bottom, another piece base plate the inside correspondence

The file formula clamping plate that the axle sleeve (3 ') of oblique crank Z (2 ') combines.One one side has been installed with respect to outward-dipping 20 °～30 ° of vertical line, the lower edge gripper shoe (4) parallel with horizontal plane with hinge in outside, middle and lower part at two base plates (1).

5, according to claim 1 bookshelf, two hinges connect to it is characterized in that using up and down by two base plates (1), and the rectangle cylindrical void has been drawn at the position between its corresponding two hinges, is respectively equipped with Qian shape crimp on the both sides, upper edge of underneath hinges.