CN108437664B

CN108437664B - Portable writing auxiliary device

Info

Publication number: CN108437664B
Application number: CN201810107850.XA
Authority: CN
Inventors: 侯珂; 李巍; 金立军
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2018-02-02
Filing date: 2018-02-02
Publication date: 2019-12-27
Anticipated expiration: 2038-02-02
Also published as: CN108437664A

Abstract

The invention relates to a portable writing auxiliary device, which comprises a base (1), a circuit board (3), a display screen (4), a metal clamping piece (5), a rotary support (6), a laser array (7) and a supporting shell (8), wherein the circuit board (3), the display screen (4) and the metal clamping piece (5) are fixed on the base (1), the display screen (4) and the laser array (7) are respectively connected with the circuit board (3), the metal clamping piece (5) is used for fixing a writable material, one end of the rotary support (6) is rotatably connected with the top of the base (1), the supporting shell (8) is rotatably connected with the other end of the rotary support (6), the laser array (7) is fixed on the supporting shell (8), and when the portable writing auxiliary device works, the laser array (7) projects a line to the writable material for assisting writing. Compared with the prior art, the portable multifunctional electric water heater has the advantages of being simple to operate, small in size, convenient to carry and the like.

Description

Portable writing auxiliary device

Technical Field

The present invention relates to a projection device, and more particularly, to a portable writing assisting device.

Background

With the continuous development of economy, the quality of life of people is greatly improved, and the meaning of life is also continuously enriched. In daily life, there are many calligraphy enthusiasts who love practice and display of various calligraphy: some of them love traditional Chinese brush calligraphy, some love hard-tipped pen calligraphy, and some love flower-body English.

During the exercise of calligraphy, there are the following problems: firstly, beginners have inaccurate control on the space layout of characters, and written characters are deviated to the left or the right and possibly to be larger or smaller; secondly, a method of manually drawing lines on the writable material can help a beginner to grasp the spatial layout, but the marks of the lines are left on the paper, so that the appearance is influenced; for the condition of various writing contents, the manual drawing process is complex, and the time cost is large; fourthly, drawing different line grids aiming at different writing contents, which wastes time and labor; line grid drawing is difficult to remove due to fragile and weak paper and particularity of writing ink, or smearing and scratch of handwriting are caused in the removing process, and attractiveness is seriously affected.

Disclosure of Invention

It is an object of the present invention to provide a portable writing aid which overcomes the above-mentioned drawbacks of the prior art.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a portable auxiliary device that writes, includes base, circuit board, display screen, metal clamping piece, runing rest, laser array and support housing, circuit board, display screen and metal clamping piece fix on the base, display screen and laser array be connected with the circuit board respectively, the metal clamping piece be used for fixed writable material, runing rest one end rotate with the base top and be connected, support housing rotate with the runing rest other end and be connected, the laser array fix on support housing, the during operation, the laser array throw the line to writable material for supplementary writing.

The metal clamping piece is an elastic clamping piece, and applies pressure to the base for clamping and fixing the writable material. The supporting shell is connected with the rotating bracket through a pivot shaft and is in interference fit with the rotating bracket.

The rotating bracket is connected with the base through a pivot and is in interference fit with the base.

The rotating bracket and the supporting shell rotate in a vertical plane.

The top of the base is provided with a containing groove, and when the rotary bracket and the supporting shell rotate to be in a shape matched with the containing groove, the rotary bracket and the supporting shell can be contained in the containing groove, so that the whole device is in a rectangular shape.

The laser arrays have certain included angles in spatial arrangement, and the extension lines of the central axes of the light beams intersect at one point in space.

The base is also provided with a battery box connected with the circuit board.

The base bottom be equipped with the kerve, the metal clamping piece embedded in the kerve.

Compared with the prior art, the invention has the following advantages:

(1) the operation is simple and convenient. The rotary bracket and the supporting shell are manually rotated by proper angles respectively, so that on one hand, the line grids can be printed in a large range of paper materials or other writable materials with various specifications, and the universality is strong; on the other hand, because included angles exist among the laser arrays, when the projection distances of the laser arrays are different, the distances of the line grids projected on the paper surface are also different, the laser array is suitable for writing scenes with different font sizes, and the applicability is high.

(2) Small size and convenient carrying. The rotary bracket and the supporting shell are manually rotated by proper angles respectively, so that the rotary bracket and the supporting shell can be accommodated in the accommodating groove, and the rotary bracket is small in size and convenient to carry.

(3) The device is stable and reliable. The portable writing auxiliary device fixes the writable material through the metal clamping piece, when the writable material is moved, the writable material can be ensured not to be displaced relative to the device, namely, the position of the device on the writable material projection line grid is not changed along with the change of the position of the writable material, and the device is stable and reliable.

Drawings

FIG. 1 is a perspective view of the device of the present invention in an expanded state during operation;

FIG. 2 is an expanded external view of the operation of the device of the present invention;

FIG. 3 is a perspective view of the device of the present invention in a stowed position;

fig. 4 is an external view of the device of the present invention in a stored state.

Reference numerals:

1 is a base; 2 is a battery box; 3 is a circuit board; 4 is a display screen; 5 is a metal clamping piece; 6 is a rotary bracket; 7 is a laser array; 8 is a supporting shell; 9. 10 is a rotating shaft; 11 is a top groove; 12 is a bottom groove.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Examples

As shown in fig. 1 and 2, a portable writing auxiliary device comprises a base 1, a battery box 2, a circuit board 3, a display screen 4, a metal clamping piece 5, a rotary support 6, a laser array 7 and a support shell 8, wherein the battery box 2, the display screen 4 and the laser array 7 are respectively connected with the circuit board 3, the battery box 2, the circuit board 3, the display screen 4 and the metal clamping piece 5 are fixed on the base 1, the laser array 7 is fixed on the support shell 8, and the base 1 and the support shell 8 are connected through the rotary support 6.

The metal clamping piece 5 applies pressure to the bottom surface of the base 1 and can be used for clamping and fixing paper or other writable materials with the thickness within 3 mm.

The rotating bracket 6 and the supporting shell 8 are connected through a rotating shaft 9 and are in interference fit, and the supporting shell 8 can rotate in the vertical direction.

The rotating bracket 6 is connected with the base 1 through a rotating shaft 10 and is in interference fit, and the rotating bracket 6 can rotate in the vertical direction. The laser array 7 is spatially arranged with an angle, wherein the axial extensions intersect at a point in space.

The metal clip 5 is embedded in the groove 12.

As shown in fig. 3 and 4, the rotating bracket 6 and the supporting housing 8 can be accommodated in the groove 11 by rotating at a proper angle, and the device has a regular hexahedron appearance and is convenient to carry.

According to the portable writing auxiliary device, on one hand, the rotary support and the supporting shell can be respectively rotated by proper angles, so that the line grids can be printed in a large range of paper materials or other writable materials with various specifications, and the portable writing auxiliary device is convenient and practical; on the other hand, the rotating bracket and the supporting shell can be respectively rotated by a proper angle to be received in the groove, so that the occupied space is reduced, and the carrying is convenient.

Claims

1. A portable writing auxiliary device is characterized by comprising a base (1), a circuit board (3), a display screen (4), a metal clamping piece (5), a rotary support (6), a laser array (7) and a support shell (8), wherein the circuit board (3), the display screen (4) and the metal clamping piece (5) are fixed on the base (1), the display screen (4) and the laser array (7) are respectively connected with the circuit board (3), the metal clamping piece (5) is used for fixing a writable material, one end of the rotary support (6) is rotatably connected with the top of the base (1), the support shell (8) is rotatably connected with the other end of the rotary support (6), the laser array (7) is fixed on the support shell (8), the laser array (7) has a certain included angle in spatial arrangement, and the extension lines of light beams intersect at one point in space, a bottom groove (12) is formed in the bottom of the base (1), and the metal clamping piece (5) is embedded in the bottom groove (12); when the laser writing assisting device works, the laser array (7) projects lines to writing materials for assisting writing.

2. A portable writing aid according to claim 1, wherein the metal clip (5) is a resilient clip, the metal clip (5) applying pressure to the base (1) for gripping and holding the writable material.

3. A portable writing aid according to claim 1, wherein the support housing (8) is pivotally connected to the rotatable support (6) in an interference fit.

4. A portable writing aid according to claim 1, wherein the rotatable support (6) is pivotally connected to the base (1) in an interference fit.

5. A portable writing aid according to claim 1, wherein the swivel stand (6) and the support housing (8) are pivotable in a vertical plane.

6. A portable writing aid according to claim 5 wherein the base (1) is provided with a receiving slot at the top thereof, and when the rotatable support (6) and the support housing (8) are rotated to a shape matching the receiving slot, they are received in the receiving slot, so that the device is overall rectangular.

7. A portable writing aid according to claim 1, wherein the base (1) is further provided with a battery compartment (2) connected to the circuit board (3).