CN214258233U - Stationery box body and stationery box with electronic draft function - Google Patents

Abstract

The utility model relates to a writing case box body and have stationery of electron draft function, it holds the chamber to be equipped with stationery in the writing case box body, the writing case box body one side is in the open mode, writing case box body inner wall still is equipped with F shape limit structure, F shape limit structure is located the opening part of writing case box body, F shape limit structure includes first and second limit structure, first and second limit structure all is fixed in a writing case box body lateral wall, constitute the F shape between a lateral wall of first and second limit structure and writing case box body, it holds the chamber to form the liquid crystal handwriting pad between first and second limit structure, the opening part of writing case box body is equipped with liquid crystal handwriting area. The utility model discloses its simple structure, design benefit and manufacturing cost are lower, can impel the liquid crystal handwriting pad from opening part one side of stationery box body to carry out the centre gripping installation between first and the second limit structure, and bottom surface one side of liquid crystal handwriting pad holds the chamber for stationery promptly for this stationery box body is convenient for install the liquid crystal handwriting pad.

Description

Stationery box body and stationery box with electronic draft function

Technical Field

The utility model relates to a technical field of official working stationery, concretely relates to stationery box body and have stationery box of electron draft function.

Background

In the prior art, the conventional writing case on the market at present is often single in function and can only contain stationery, and if a user wants to record what is to be written or draw a draft at any time, the user needs to prepare a pen and a draft book, a memo book or a notebook. With the continuous improvement of science and technology and the continuous improvement of the living standard of materials in China, the individual requirements of people on the accessory functions of the box body products are continuously improved, and the current box body with single function can not meet the individual requirements of people.

Of course, some writing cases with electronic draft function or writing case bodies with liquid crystal writing pads are also rarely found in chinese patents, for example, patent application No. CN2019213942254 discloses a multifunctional writing case with a built-in liquid crystal writing pad, which includes two case bodies with opposite openings; the box body is provided with a movable cover plate capable of covering the opening, and the outer side surface of at least one movable cover plate is detachably provided with a liquid crystal handwriting board; the side edges of the openings of the two box bodies are rotatably connected and can be combined into a whole when being closed, the structural design is relatively complex, and the defects of high implementation cost, small writing area and the like exist; for another example, patent application No. CN2019213887098 discloses a writing case with a liquid crystal writing pad, which is characterized in that: the upper cover box body and the lower cover box body are provided with shaft holes, one end of the lower cover box body is provided with a vertical plate for supporting the upper cover box body, the upper cover box body and the lower cover box body are opened and closed through a strong magnet, a liquid crystal writing board is arranged in the lower cover box body, the liquid crystal writing board is connected with the shaft holes on the lower cover box body through a rotating shaft to form a turnover structure, the liquid crystal writing board comprises a liquid crystal writing film and a gum nameplate for fixing the liquid crystal writing film, an electronic control board and a battery seat are arranged in the liquid crystal writing board, a button battery is arranged in the battery seat, a power supply switch is arranged on the electronic control board, an upper cover plate is arranged in the upper cover box body, the upper cover plate is arranged in the shaft holes on the upper cover box body through a circular shaft to form the turnover structure, and the upper cover plate and the upper cover box body are attracted through the strong magnet, the structure design is relatively complex, and the defects of high implementation cost, small writing area and the like exist; similarly, for example, patent application No. cn201920716522.x discloses a multifunctional liquid crystal writing board, which has a stationery storage function, relatively high manufacturing cost and a complex process. Therefore, there is a need in the market for a writing case body and a writing case with electronic draft function, which has no single function, simple structure, low cost and convenient manufacture and use.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to provide a writing case body, which solves the technical problems mentioned above.

Realize the technical scheme of one of the purposes of the utility model as follows:

a stationery case body is provided with a stationery accommodating cavity, one surface of the stationery case body is in an opening state, an F-shaped limiting structure is further arranged on at least one side wall in the writing case body, the F-shaped limiting structure is positioned at the opening of the writing case body, the F-shaped limiting structure comprises a first limiting structure and a second limiting structure, the first limiting structure and the second limiting structure are both fixed on one side wall of the writing case body, the first limit structure, the second limit structure and one side wall of the writing case body form an F shape, a liquid crystal writing board accommodating cavity for clamping and installing the liquid crystal writing board is formed between the first limiting structure and the second limiting structure, the opening of the writing case body is provided with a liquid crystal handwriting area for displaying the liquid crystal handwriting board so as to facilitate handwriting operation of a user.

Realize the utility model discloses a technical scheme's of one of purpose beneficial effect is: the utility model provides a writing case box body, its simple structure, design benefit and manufacturing cost are lower, through be equipped with F shape limit structure in the writing case box body, F shape limit structure includes first limit structure and second limit structure, can follow liquid crystal handwriting pad carry out the centre gripping installation between the opening part one side of writing case box body impels first limit structure and the second limit structure, and bottom surface one side of liquid crystal handwriting pad holds the chamber for stationery, makes this writing case box body be convenient for install liquid crystal handwriting pad, and the writing case after installing liquid crystal handwriting pad has the electron draft simultaneously and holds the stationery function, and production simple process, easy dismounting, manufacturing cost is lower relatively, has practiced thrift a large amount of papers, has positive social.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, F-shaped limiting structures are arranged on two opposite side walls in the writing case body.

The beneficial effect of adopting the further scheme is that: through all being equipped with F shape limit structure on relative both sides wall in the stationery box body, 2F shape limit structure can grasp the both sides edge of liquid crystal handwriting pad respectively, and the liquid crystal handwriting pad can slide into the liquid crystal handwriting pad along the middle of the F shape limit structure and hold the intracavity to firm the installation is in the liquid crystal handwriting pad and holds the intracavity.

Further, the first limit structure is an upper limit structure, and the second limit structure is a lower limit structure.

The beneficial effect of adopting the further scheme is that: through designing first and second limit structure for upper and lower direction to the user directly uses.

Further, the F-shaped limit structure further comprises at least 1 bridging structure for supporting or conveying the writing case body, the bridging structure is fixed on one side wall of the writing case body, and the bridging structure is flush with the second limit structure.

The beneficial effect of adopting the further scheme is that: the bridging structure is fixed on one side wall of the writing case body to bear the bottom surface of the liquid crystal writing board, so that the stability and the strength of the whole structure of the writing case are enhanced on one hand, and the liquid crystal writing board can slide into the space between the first limiting structure and the second limiting structure more smoothly on the other hand.

Furthermore, a first magnet mounting position used for being attracted with the liquid crystal writing pad is arranged on the other side wall of the writing case body, and the first magnet mounting position is mounted at the opening of the writing case body.

The beneficial effect of adopting the further scheme is that: the other side wall of the writing case body is provided with a first magnet mounting position used for being attracted with the liquid crystal writing board, and the first magnet is mounted in the first magnet mounting position to attract the bottom surface of the liquid crystal writing board, so that the liquid crystal writing board is more firmly fixed.

Furthermore, all be equipped with F shape limit structure on the relative both sides wall in the writing case box body, 2F shape limit structure is about the central plane symmetry of writing case box body, magnet installation position with second limit structure looks parallel and level, 2 wherein F shape limit structure is used for the centre gripping to the anterior both sides of liquid crystal handwriting pad, magnet installation position is used for holding the rear portion of liquid crystal handwriting pad to form three point location.

The beneficial effect of adopting the further scheme is that: through the design of the F-shaped symmetrical limiting structures on the two opposite side wall surfaces in the writing case body, the liquid crystal writing board is firmly combined with the stationery accommodating cavity at the bottom of the liquid crystal writing board through the interaction of three fulcrum forces in combination with magnetic attraction.

Further, be equipped with 2F shape limit structure on the same lateral wall in the writing case box body, 2F shape limit structure is in a lateral wall on the writing case box body with first magnet installation position is in another lateral wall on the writing case box body is relative, magnet installation position with second limit structure looks parallel and level, wherein 2F shape limit structure is used for the centre gripping to the anterior both sides of liquid crystal handwriting pad, magnet installation position is used for holding the rear portion of liquid crystal handwriting pad to form three point location.

The beneficial effect of adopting the further scheme is that: through 2F-shaped symmetrical limiting structure designs on the same side wall surface in the writing case box body, the liquid crystal writing board is firmly combined with the stationery accommodating cavity at the bottom of the liquid crystal writing board through the interaction of three fulcrum forces in combination with magnetic attraction.

Further, the inner side of the first limiting structure is provided with an arc chamfer which is used for being attached to the outer edge of the liquid crystal handwriting board.

The beneficial effect of adopting the further scheme is that: the arc chamfer angle used for being attached to the outer edge of the liquid crystal handwriting board is arranged on the inner side of the first limiting structure, so that the outer edge of the liquid crystal handwriting board is ensured to be closely attached to the outer edge of the liquid crystal handwriting board, and the outer edge of the liquid crystal handwriting board cannot be damaged.

Furthermore, a notch for pushing the liquid crystal writing board is formed in the opening of the writing case body.

The beneficial effect of adopting the further scheme is that: a notch for pushing the liquid crystal writing board is formed in the opening of the writing case body, so that the liquid crystal writing board can be conveniently pushed between the first limiting structure and the second limiting structure.

The second objective of the present invention is to provide a writing case, which solves the above technical problems.

Realize the utility model discloses a second technical scheme as follows:

the utility model provides a writing case with electronic draft function, the writing case includes liquid crystal handwriting pad and writing case box body, the liquid crystal handwriting pad install in the liquid crystal handwriting pad holds the intracavity, the liquid crystal handwriting district and the bottom surface of liquid crystal handwriting pad laminate with first limit structure and second limit structure respectively mutually, the liquid crystal handwriting district of liquid crystal handwriting pad with the opening part of writing case box body is relative.

Realize the utility model discloses a second purpose's technical scheme's beneficial effect is: the utility model also provides a writing case with electron draft function, has following advantage:

1. the liquid crystal writing board is simple in structure, ingenious in design and low in production cost, the F-shaped limiting structure is arranged in the writing case body and comprises the first limiting structure and the second limiting structure, the liquid crystal writing board can be pushed into the space between the first limiting structure and the second limiting structure from one side of the opening of the writing case body to be clamped and mounted, and the liquid crystal writing board is convenient to assemble and disassemble;

2. the liquid crystal writing board and the stationery containing cavity are integrated in the writing case body, so that the writing case body has the functions of electronic draft and stationery containing, the production process is simple, the assembly and disassembly are convenient, the manufacturing cost is relatively low, a large amount of paper is saved, and the positive social benefit is achieved.

Further, the liquid crystal handwriting board comprises a handwriting board bottom shell, a liquid crystal handwriting film and a circuit board; the writing board bottom shell install in the liquid crystal writing board holds the intracavity, be equipped with on the writing board bottom shell and write by hand membrane installing zone, second magnet installation position and circuit board installing zone, the liquid crystal film of writing install in writing by hand the membrane installing zone, the circuit board install in the circuit board installing zone, second magnet installation position is located one side of writing board bottom shell, second magnet installation position with the opening part one side of stationery box body is laminated mutually, install second magnet in the second magnet installation position, the liquid crystal film of writing with the circuit board electricity is connected.

The beneficial effect of adopting the further scheme is that: the second magnet is arranged on one side of the bottom shell of the handwriting board in the liquid crystal handwriting board and used for attracting the bottom surface of the liquid crystal handwriting board to the writing case body, so that the connection stability of the liquid crystal handwriting board and the writing case body is enhanced.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic front view of a writing case with an electronic draft function according to an embodiment of the present invention;

fig. 2 is a left side view schematic diagram of the writing case with an electronic draft function provided in fig. 1;

fig. 3 is a schematic front view of a liquid crystal writing pad in the writing case with an electronic draft function shown in fig. 1;

FIG. 4 is a schematic front view of a bottom case of the liquid crystal handwriting pad shown in FIG. 3;

FIG. 5 is a schematic front view of a liquid crystal handwriting pad provided in FIG. 3;

FIG. 6 is a schematic diagram of a front view of a circuit board in the liquid crystal handwriting board shown in FIG. 3;

fig. 7 is a schematic front view of the case body of the writing case with the electronic draft function in fig. 1;

fig. 8 is a sectional view a-a of the case body of the writing case with the electronic draft function in fig. 1;

fig. 9 is a sectional view of the case body of the writing case with the electronic draft function in fig. 1 taken along line B-B.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a writing case; 10. a writing case body; 11. a stationery accommodating chamber; 12. a first magnet mounting location; 13. the liquid crystal handwriting board accommodating cavity; 20. a liquid crystal handwriting board; 21. a liquid crystal handwriting area; 22. clearing the key; 23. a bottom case of the handwriting board; 231. a handwriting film mounting area; 232. a second magnet mounting location; 233. a circuit board mounting area; 24. a liquid crystal handwriting film; 25. a circuit board; 251. a first pad; 252. a second pad; 253. a button cell; 30. an F-shaped limiting structure; 31. an upper limiting structure; 32. a lower limit structure; 33. a bridging structure.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-9, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-9, the utility model provides a writing case with electronic draft function, writing case 100 includes liquid crystal handwriting pad 20 and writing case box body 10, liquid crystal handwriting pad 20 install in the liquid crystal handwriting pad holds in the chamber 13, the liquid crystal handwriting district 21 and the bottom surface of liquid crystal handwriting pad 20 laminate with first limit structure and second limit structure respectively mutually, the liquid crystal handwriting district 21 of liquid crystal handwriting pad 20 with the opening part of writing case box body 10 is relative.

It can be understood that a groove space is formed between the first limit structure and the second limit structure, so that the liquid crystal writing pad 20 can be pushed into the groove space for clamping.

Further, as shown in fig. 3-6, the liquid crystal handwriting pad 20 includes a handwriting pad bottom case 23, a liquid crystal handwriting film 24 and a circuit board 25; the writing board bottom shell 23 is installed in the liquid crystal writing board accommodating cavity 13, a writing film installation area 231, a second magnet installation position 232 and a circuit board installation area 233 are arranged on the writing board bottom shell 23, the liquid crystal writing film 24 is installed in the writing film installation area 231, the circuit board 25 is installed in the circuit board installation area 233, the second magnet installation position 232 is located on one side of the writing board bottom shell 23, the second magnet installation position 232 is attached to one side of an opening of the writing case box body 10, a second magnet is installed in the second magnet installation position 232, and the liquid crystal writing film 24 is electrically connected with the circuit board 25.

The second magnet is arranged on one side of the bottom shell 23 of the handwriting pad in the liquid crystal handwriting pad 20, and the second magnet can be used for attracting the bottom surface of the liquid crystal handwriting pad 20 to the writing case body 10, so that the connection stability of the liquid crystal handwriting pad 20 and the writing case body 10 is enhanced.

It should be noted that the circuit board 25 is provided with a first pad 251, a second pad 252, a button battery 253 and a clear button 22; the first bonding pad 251 and the second bonding pad 252 are electrically connected with two pins of the liquid crystal handwriting film 24, respectively, and the clear button 22 is electrically connected with the button battery 253, the first bonding pad 251 and the second bonding pad 252, respectively.

The bottom case 23 of the tablet, which is usually made of ABS type material, is provided with a circuit board mounting groove for mounting the control circuit board and a magnet mounting groove. After the magnet is installed, the liquid crystal handwriting board is made to advance the F-shaped limiting structure 30 along the bridging structure 33 along the lower surface (i.e. the notch mentioned below) of the liquid crystal handwriting board accommodating cavity 13, and then the first magnet on the handwriting board bottom shell 23 is just in the same position as the second magnet on the liquid crystal handwriting board accommodating cavity 13 and opposite attraction.

When the electronic draft is needed, a special writing pen or a finger nail is used for writing on the surface of the liquid crystal handwriting film 24, the electronic draft can be used instead of draft paper, after the use is finished, the clear key is pressed, the handwriting is cleared by one key, and the electronic draft can be repeatedly used for tens of thousands of times.

Preferably, as shown in fig. 7-9, a stationery accommodating cavity 11 is provided in the writing case body 10, one side of the writing case body 10 is in an open state, an F-shaped limiting structure 30 is further provided on at least one side wall in the writing case body 10, the F-shaped limiting structure 30 is located at the opening of the writing case body 10, the F-shaped limiting structure 30 includes a first limiting structure and a second limiting structure, the first limiting structure and the second limiting structure are both fixed on one side wall of the writing case body 10, an F-shape is formed between the first limiting structure and the second limiting structure and a side wall of the writing case body 10, a liquid crystal writing board accommodating cavity 13 for holding and installing a liquid crystal writing board 20 is formed between the first limiting structure and the second limiting structure, the opening of the writing case body 10 is used for displaying a liquid crystal writing area 21 of the liquid crystal writing board 20, so as to facilitate the handwriting operation of the user.

The embodiment provides a writing case body, which is simple in structure, ingenious in design and low in production cost, the F-shaped limiting structure 30 is arranged in the writing case body 10, the F-shaped limiting structure 30 comprises the first limiting structure and the second limiting structure, the liquid crystal writing board 20 can be pushed into the space between the first limiting structure and the second limiting structure from one side of the opening of the writing case body 10 to be clamped and installed, the stationery accommodating cavity 11 is formed in one side of the bottom surface of the liquid crystal writing board 20, the liquid crystal writing board 20 can be conveniently installed on the writing case body, the writing case with the liquid crystal writing board installed has the functions of electronic draft and stationery accommodating, the production process is simple, the assembly and disassembly are convenient, the manufacturing cost is relatively low, a large amount of paper is saved, and positive social benefits are achieved.

It is understood that, in the present embodiment, as shown in fig. 7, the side of the writing case body 10 in the open state is a computer screen side.

Preferably, two opposite side walls in the writing case body 10 are respectively provided with an F-shaped limiting structure 30, and 2F-shaped limiting structures 30 are symmetrical with respect to the central plane of the writing case body 10.

The two opposite side walls in the writing case body 10 are symmetrically provided with the F-shaped limiting structures 30 and 2 respectively, the F-shaped limiting structures 30 can clamp the edges of the two sides of the liquid crystal writing board 20 respectively, and the liquid crystal writing board 20 can slide into the liquid crystal writing board accommodating cavity 13 along the middle of the F-shaped limiting structures 30 so as to be stably installed in the liquid crystal writing board accommodating cavity 13.

Of course, the number of the F-shaped limiting structures 30 can be any number according to actual needs.

Preferably, the first limiting structure is an upper limiting structure 31, and the second limiting structure is a lower limiting structure 32.

Through designing first and second limit structure for upper and lower direction to the user directly uses.

Further, the F-shaped limiting structure 30 further includes at least 1 bridging structure 33 for supporting or conveying the writing case body 10, the bridging structure 33 is fixed on one side wall of the writing case body 10, and the bridging structure 33 is flush with the second limiting structure.

The bridging structure 33 is fixed on one side wall of the writing case body 10 to bear the bottom surface of the liquid crystal writing board 20, so that on one hand, the stability and strength of the whole structure of the writing case 100 are enhanced, and on the other hand, the liquid crystal writing board 20 can more smoothly slide into the space between the first limit structure and the second limit structure.

When the liquid crystal writing pad 20 is installed, the bottom surface of the liquid crystal writing pad 20 is attached to the second limiting structure and the bridging structure 33.

Preferably, as shown in fig. 7, a first magnet installation position 12 for attracting the liquid crystal writing pad 20 is disposed on the other side wall of the writing case body 10, and the first magnet installation position 12 is installed at an opening of the writing case body 10.

The other side wall of the writing case body 10 is provided with a first magnet installation position 12 for attracting the liquid crystal writing pad 20, and a first magnet is installed in the first magnet installation position 12 to attract the bottom surface of the liquid crystal writing pad 20, so that the liquid crystal writing pad 20 is more firmly fixed.

Preferably, as shown in fig. 8, F-shaped limiting structures 30 are disposed on two opposite side walls in the writing case body 10, 2F-shaped limiting structures 30 are symmetrical with respect to a central plane of the writing case body 10, and the magnet mounting positions 12 are flush with the second limiting structures, wherein 2F-shaped limiting structures 30 are used for clamping two sides of the front portion of the liquid crystal writing board 20, and the magnet mounting positions 12 are used for sucking the rear portion of the liquid crystal writing board 20 to form three-point positioning.

The liquid crystal writing board 20 is firmly combined with the stationery accommodating cavity 11 at the bottom of the liquid crystal writing board through the design of the F-shaped symmetrical limiting structures 30 on two opposite side wall surfaces in the writing case body 10, the magnetic attraction and the interaction of three fulcrum forces.

Further, in another embodiment, 2F-shaped limiting structures 30 are disposed on the same side wall in the writing case body 10, one side wall of the F-shaped limiting structures 30 on the writing case body 10 is opposite to the other side wall of the first magnet mounting position 12 on the writing case body 10, the magnet mounting position 12 is flush with the second limiting structure, wherein 2F-shaped limiting structures 30 are used for clamping two sides of the front portion of the liquid crystal writing pad 20, and the magnet mounting position 12 is used for attracting the rear portion of the liquid crystal writing pad 20 to form three-point positioning.

The beneficial effect of adopting the further scheme is that: through the design of 2F-shaped symmetrical limiting structures 30 on the same side wall surface in the writing case body 10, the liquid crystal writing board 20 is firmly combined with the writing case accommodating cavity 11 at the bottom of the liquid crystal writing board through the interaction of three fulcrum forces in combination with magnetic attraction.

Preferably, as shown in fig. 8, an arc chamfer for fitting with the outer edge of the liquid crystal handwriting board 20 is provided on the inner side of the first limiting structure.

The arc chamfer angle used for being attached to the outer edge of the liquid crystal handwriting board 20 is arranged on the inner side of the first limiting structure, so that the outer edge of the liquid crystal handwriting board 20 is tightly attached to the outer edge of the liquid crystal handwriting board, and the outer edge of the liquid crystal handwriting board 20 cannot be damaged.

Preferably, as shown in fig. 7, a notch for pushing the liquid crystal writing pad 20 is formed at the opening of the writing case body 10. As shown in fig. 7, the notch is located at the magnet mounting location 12.

A notch used for pushing the liquid crystal writing pad 20 is formed in the opening of the writing case body 10, so that the liquid crystal writing pad 20 can be conveniently pushed between the first limiting structure and the second limiting structure.

In order to achieve the storage capacity, the storage length, and the writing area, the liquid crystal writing pad 20 is preferably a thin and anti-falling liquid crystal writing pad with a surface mount of about 8.5 inches.

In addition, in order to save materials and develop conveniently the mould, give consideration to the intensity and esthetic appearance at the same time, the design length of F-shaped spacing structure is about 10mm, height and width are about 1-3 mm; the designed length of the bridging position is about 5mm, and the height and the width are about 1-3 mm.

The F-shaped limit structure 30 and the bridging structure 33 may be attached to the inner side wall of the writing case body 10, and are made of the same material as the writing case body 10 to form a whole.

It will be appreciated that the improved design of the F-shaped stop 30 is: the same effect can be obtained by eliminating the upper limit structure 31 of the F-shaped limit structure 30, forming a groove on the side surface of the liquid crystal writing pad 20, and inserting the lower limit structure 32 of the F-shaped limit structure 30 into the groove.

Bridging structures 33 are further arranged on the inner wall surfaces of the left side and the right side of the liquid crystal writing pad accommodating cavity 13, the bridging structures 33 are located in the middle positions of the F-shaped limiting structures 30 and the lower surface (namely, the notch mentioned below) of the liquid crystal writing pad accommodating cavity 13, the upper surfaces of the bridging structures are flush with the lower surface of the liquid crystal writing pad accommodating cavity 13, and the bridging structures 33 are used for pushing the liquid crystal writing pad 20 to the F-shaped limiting structures 30.

The writing case body 10 is typically made of ABS type material, and has an open side, an internal cavity with a length of about 200mm, a width of about 135mm, a wall thickness of about 2mm, and three high sides and one low side around the opening. The total height is about 24mm, and the height difference is just the thickness of the liquid crystal handwriting board 20. The lower side of the opening is usually a long side, and the upper surface is provided with a magnet which is used as an absorption liquid crystal writing board 20. The inner wall surfaces of the left and right sides are far away from the first magnet position 12, and an F-shaped symmetrical limiting structure 30 is arranged for limiting the liquid crystal writing pad 20.

The upper limit structure 31 of the F-shaped limit structure 30 is flush with the top of the inner cavity, and the upper surface of the lower limit structure 33 of the F-shaped limit structure is flush with the upper surface of the lower surface of the inner cavity.

It can be understood that: the upper limit of the F-shaped limiting structure 30 can be located on the left and right sides, or on the opposite side of the first magnet position 12, and the lower limit of the F-shaped limiting structure 30 can be parallel to the upper limit 31 at the corresponding position, or can be set at different positions of two parallel lines.

The utility model discloses a concrete installation method does:

as shown in fig. 1-9, first, the bottom surface of the writing case body 10 is placed in the horizontal direction, the notch of the writing case body 10 faces to the left, one surface of the liquid crystal handwriting area 21 of the liquid crystal handwriting board 20 faces upward, the key is removed and close to the surface of a person, along the notch of the writing case body 10, the upper surface of the bridging structure 33 is pushed to the bottom towards the F-shaped limiting structure 30 from the left to the right, so that the second magnet on the liquid crystal handwriting board 20 is exactly the same as the first magnet at the notch of the writing case body 10, the magnets attract each other in opposite directions, the front and back F-shaped limiting structures and the magnet positions form a triangular force interaction, and the liquid crystal handwriting board 20 can be firmly attached to the surface of the opening of the writing case body 10 to form a closed accommodating cavity for accommodating stationery.

When the electronic draft is needed to be used, a special writing pen or a finger nail is used for writing on the upper surface of the liquid crystal handwriting board, the draft paper can be replaced, after the use, the clearing key is pressed, the handwriting is cleared by one key, and the repeated use for tens of thousands of times can be realized.

When the stationery in the writing case 100 needs to be taken out, the upper surface of the liquid crystal handwriting film 24 is pressed and pushed outwards, so that the liquid crystal handwriting board 20 is separated from the F-shaped limiting structure 30, the second magnet on the liquid crystal handwriting board 20 is separated from the magnetic force range of the first magnet, and the stationery in the case can be conveniently taken out for use.

The liquid crystal writing pad 20 is assembled as follows:

1. the second magnet is arranged and used as the magnetic writing case body 10 or the writing pen.

2. The control circuit board 25 is installed to provide signals for the handwriting clearing circuit of the liquid crystal handwriting board 20.

3. And a liquid crystal handwriting film 24 is installed, and pins of the liquid crystal handwriting film 24 are electrically connected to bonding pads of a control circuit board 25 through a copper net or a flexible FPC.

4. The surface paste is usually a PVC material or a PC material with glue on one side, and is used for covering pins of the liquid crystal handwriting film and protecting the edge of the liquid crystal handwriting film, so that the liquid crystal handwriting board is attractive, elegant and durable.

The utility model provides a writing case with electron draft function has following advantage:

1. the liquid crystal writing board is simple in structure, ingenious in design and low in production cost, the F-shaped limiting structure 30 is arranged in the writing case box body 10, the F-shaped limiting structure 30 comprises a first limiting structure and a second limiting structure, the liquid crystal writing board 20 can be pushed into the space between the first limiting structure and the second limiting structure from one side of the opening of the writing case box body 10 to be clamped and mounted, and the liquid crystal writing board is convenient to assemble and disassemble;

2. the liquid crystal writing board 20 and the stationery containing cavity 11 are integrated in the writing case body, so that the writing case body has the functions of electronic draft and stationery containing, the production process is simple, the assembly and disassembly are convenient, the manufacturing cost is relatively low, a large amount of paper is saved, and the positive social benefits are achieved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. A writing case body is provided with a writing case accommodating cavity (11) in the writing case body (10), and is characterized in that one side of the writing case body (10) is in an open state, an F-shaped limiting structure (30) is further arranged on at least one side wall in the writing case body (10), the F-shaped limiting structure (30) is located at the opening of the writing case body (10), the F-shaped limiting structure (30) comprises a first limiting structure and a second limiting structure, the first limiting structure and the second limiting structure are both fixed on one side wall of the writing case body (10), an F-shaped structure is formed among the first limiting structure, the second limiting structure and one side wall of the writing case body (10), a liquid crystal writing board accommodating cavity (13) for clamping and mounting a liquid crystal writing board (20) is formed between the first limiting structure and the second limiting structure, the opening of the writing case body (10) is provided with a liquid crystal handwriting area (21) for displaying the liquid crystal handwriting board (20).

2. The writing case body as claimed in claim 1, wherein the writing case body (10) has F-shaped limiting structures (30) on two opposite side walls.

3. The writing case body as recited in claim 1, wherein the first limit structure is an upper limit structure (31) and the second limit structure is a lower limit structure (32).

4. The writing case body as recited in claim 1, wherein the F-shaped retaining structure (30) further comprises at least 1 bridging structure (33) for supporting or transporting the writing case body (10), the bridging structure (33) being secured to a side wall of the writing case body (10), the bridging structure (33) being flush with the second retaining structure.

5. The writing case body according to claim 1, wherein a first magnet mounting position (12) for attracting the liquid crystal writing pad (20) is arranged on the other side wall of the writing case body (10), and the first magnet mounting position (12) is mounted at the opening of the writing case body (10).

6. The writing case body according to claim 5, wherein the two opposite side walls in the writing case body (10) are provided with F-shaped limiting structures (30), 2 of the F-shaped limiting structures (30) are symmetrical about the central plane of the writing case body (10), the magnet mounting positions (12) are flush with the second limiting structure, wherein 2 of the F-shaped limiting structures (30) are used for clamping two sides of the front part of the liquid crystal writing board (20), and the magnet mounting positions (12) are used for sucking the rear part of the liquid crystal writing board (20) to form three-point positioning.

7. The writing case body according to claim 5, wherein 2F-shaped limiting structures (30) are disposed on the same side wall in the writing case body (10), 2F-shaped limiting structures (30) are disposed on one side wall of the writing case body (10) opposite to the other side wall of the first magnet mounting position (12) on the writing case body (10), the magnet mounting positions (12) are flush with the second limiting structure, wherein 2F-shaped limiting structures (30) are used for clamping two sides of the front portion of the liquid crystal writing board (20), and the magnet mounting positions (12) are used for attracting the rear portion of the liquid crystal writing board (20) to form three-point positioning.

8. The writing case body according to claim 1, wherein the opening of the writing case body (10) is provided with a notch for pushing in the liquid crystal writing pad (20).

9. The writing case with the electronic draft function is characterized in that the writing case (100) comprises a liquid crystal writing board (20) and the writing case body (10) according to any one of claims 1 to 8, the liquid crystal writing board (20) is installed in the liquid crystal writing board accommodating cavity (13), a liquid crystal writing area (21) and a bottom surface of the liquid crystal writing board (20) are respectively attached to a first limiting structure and a second limiting structure, and the liquid crystal writing area (21) of the liquid crystal writing board (20) is opposite to an opening of the writing case body (10).

10. The writing case with electronic draft function according to claim 9, wherein the liquid crystal writing tablet (20) comprises a writing tablet bottom case (23), a liquid crystal writing film (24) and a circuit board (25); handwriting pad drain pan (23) install in the liquid crystal handwriting pad holds chamber (13), be equipped with on handwriting pad drain pan (23) and write by hand membrane installing zone (231), second magnet installation position (232) and circuit board installing zone (233), liquid crystal handwriting membrane (24) install in write by hand in the membrane installing zone (231), circuit board (25) install in circuit board installing zone (233), second magnet installation position (232) are located one side of handwriting pad drain pan (23), second magnet installation position (232) with the laminating of opening part one side of stationery box body (10), install the second magnet in second magnet installation position (232), liquid crystal handwriting membrane (24) with circuit board (25) electricity is connected.

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