CN218790992U

CN218790992U - Multi-layer stationery case

Info

Publication number: CN218790992U
Application number: CN202222212332.9U
Authority: CN
Inventors: 种美娜; 庞林泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-04-07
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a multilayer stationery box relates to study article design technical field, including the position of stationery box casing, the fixed joint unit of visor, the fixed unit of ruler rubber, the fixed unit of writing utensils stationery box casing left side surface relief angle seted up circular through-hole, circular through-hole runs through the side about the stationery box casing, circular through-hole internal rotation is connected and is rotated the post, the both ends of rotating the post extend to the stationery box casing about both sides and with to the visor in side fixed connection about, the lower side surface four corners of stationery box casing is fixed connection buffering protection pad respectively, the visor is through rotating swing joint of post on the stationery box casing, the upside surface of visor is provided with ruler rubber fixed unit, can categorised the placing, and the stationery box space increase can place multiple different stationery, has fixedly to the pen, is difficult to make bad pen.

Description

Multi-layer stationery case

Technical Field

The utility model relates to a study article design technical field specifically is a multilayer stationery box.

Background

The writing case is a tool which is commonly used by people for holding stationery, has a simple structure, is convenient to use, and can be suitable for students, but the general writing case can only hold stationery, has simpler functions, and particularly needs a writing case which can be placed in a classified mode along with the increase of learning tools.

The existing multilayer stationery box has the advantages of incapability of being placed in a classified mode, small space, incapability of placing various stationery, no fixation on a pen and easiness in damaging the pen.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a multilayer stationery box, can classify and place, the stationery box space increases, can place multiple different stationery, has fixedly to the pen, is difficult to make bad pen, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-layer writing case comprises a writing case shell, a protective cover fixing and clamping unit, a ruler eraser fixing unit and a writing tool fixing unit;

a writing case shell: the pencil box comprises a pencil box shell, a protective cover, a ruler rubber fixing unit, a pencil tool fixing unit, a rotating column, a ruler rubber fixing unit and a pencil tool fixing unit, wherein the rear angle of the left side surface of the pencil box shell is provided with a circular through hole, the circular through hole penetrates through the left side and the right side of the pencil box shell, the rotating column is rotatably connected in the circular through hole, two ends of the rotating column extend to the left side and the right side of the pencil box shell and are fixedly connected with the left side and the right side in the protective cover, four corners of the lower side surface of the pencil box shell are fixedly connected with the buffer protective pad respectively, the protective cover is movably connected on the pencil box shell through the rotating column, the upper side surface of the protective cover is provided with the ruler rubber fixing unit, and the pencil tool fixing unit is arranged in the pencil box shell;

the protective cover fixes the clamping unit: include L type joint board, T type backup pad, first connecting strip, support column, sliding block and compression spring, the terminal surface of the vertical direction of two equidistant L type joint boards of the front side fixed connection of visor, through first connecting strip and T type backup pad fixed connection in two L type joint boards, two equidistant rectangle spouts are seted up to the terminal surface of the bulge of T type backup pad, and the both ends of fixed connection support column are respectively in two rectangle spouts, sliding connection sliding block respectively on every support column, and the position that lies in between sliding block downside surface and the rectangle spout internal surface in every rectangle spout is fixed connection compression spring's both ends respectively, and every compression spring cup joints respectively on the support column to.

The pencil box comprises a pencil box shell, a rotating column, a buffering protection pad, a T-shaped clamping plate, a support column, a sliding block, a clamping block and a compression spring, wherein the pencil box shell is used for containing stationery, the rotating column is used for driving the protective cover to move, so that the protective cover is fixed on the pencil box shell, the buffering protection pad is used for protecting the pencil box shell, the pencil box shell is protected when the pencil box shell drops, the ruler eraser fixing unit is used for fixing a ruler and an eraser, the pencil fixing unit is used for fixing a pen, the L-shaped clamping plate is used for fixing the T-shaped support plate on the L-shaped clamping plate through a first connecting strip, the support column is used for limiting the sliding block to slide, the sliding block is used for fixing the clamping block and driving the clamping block to slide, the compression spring is used for allowing the clamping block to automatically rebound after moving, when the clamping block needs to be fixed, the clamping block is moved and drives the compression spring to compress the device to be clamped and fixed, so that the stationery in the pencil box is protected.

Further, the fixed joint unit of visor still contains joint piece, fixing bolt and grafting piece, the rear side surface of a joint piece of front end fixed surface of two sliding blocks, the front side surface fixed connection of writing case casing connects the grafting piece, rectangle joint groove has been seted up to the front side surface of grafting piece, the upper end surface in joint groove runs through the upside surface that alternates the grafting piece, rectangle joint groove and joint piece are to the joint, the joint piece passes through the rectangle joint groove fixed connection on fixing bolt and the grafting piece.

The joint piece passes through fixing bolt and grafting piece is fixed, lets fixed more firm, protects the instrument in the stationery box casing to this comes fixed visor, protects in the stationery box casing.

Further, the ruler rubber fixing unit comprises a fixed connection plate, slide rails, slide strips, a ruler fixing plate, a U-shaped protection fixing plate, a fixing ring, a pulling handrail and a baffle plate, the upper end surface of the protective cover is fixedly connected with the fixed connection plate, a ruler placing groove is formed in the right side surface of the fixed connection plate, the front side and the rear side in the ruler placing groove are respectively fixedly connected with the slide rails, the sliding strips are respectively fixedly clamped in the two slide rails, the front end and the rear end of the ruler fixing plate are respectively fixedly connected with one corresponding side of the two sliding strips, the right side surface of the ruler fixing plate is fixedly connected with the baffle plate, the right side surface of the baffle plate is movably connected with the pulling handrail through a pin shaft, the ruler fixing plate is in sliding connection in the ruler placing groove, the upper side surface of the ruler fixing plate is close to the fixed connection fixing ring of the baffle plate, the ruler is fixedly clamped in the fixing ring, the position of the baffle plate is far away from the upper side surface of the ruler fixing plate, and the ruler is placed between the U-shaped protection fixing plate and the upper side of the ruler fixing plate.

The fixed connection board is used for fixing the slide rail, the slide rail is used for driving the slip strip to slide, the slip strip is used for driving the ruler fixed plate to slide, the ruler fixed plate is used for fixed ruler, U type protection fixed plate is used for fixing the ruler rear end, solid fixed ring is used for fixing the ruler front end, fix the size with this, prevent that the size from rocking, the baffle is used for fixed pulling handrail, the pulling handrail is used for driving the ruler fixed plate and removes, come the ruler of conveniently taking, fix the ruler with this.

Further, the ruler eraser fixing unit further comprises an eraser protection pad, a handrail and a fixed door plate, an eraser placing groove is formed in the position, on the left side of the ruler placing groove, of the upper side surface of the fixed connecting plate, four edges in the eraser placing groove are fixedly connected with the eraser protection pad respectively, an eraser is arranged in the eraser placing groove, one side of the eraser placing groove is connected with the fixed door plate in a sliding mode, and the upper side surface of the fixed door plate is fixedly connected with the handrail.

The rubber protection pad is used for protecting the rubber, the fixed door plate is used for fixing the rubber to prevent the rubber from falling off, and the handrail is used for conveniently pulling the fixed door plate to fix the rubber and conveniently take the rubber when in use.

Further, the stationery fixed unit includes that the frame is placed to the writing utensils, spread groove, second connecting strip and fixed deckle board, the spread groove has been seted up to the upside surface of writing utensils casing, it places the frame to be provided with the writing utensils in the writing utensils casing, the upper end fixed surface of frame is placed to the writing utensils fixed deckle board of connecting, the downside surface of fixed deckle board is located the writing utensils and places the position fixed connection second connecting strip on frame border, the second connecting strip corresponds the joint with the spread groove.

The fixed frame plate is used for fixing the pen placing frame, the pen placing frame is used for preventing pens, the connecting groove and the second connecting strip are connected in a clamped mode and used for enabling the fixed frame plate to be fixed on the writing case shell, so that pens can be placed on the pen placing frame, the fixed frame plate can be conveniently detached, and the stationery can be placed in the writing case shell and between the fixed frame plates to place various stationery.

Further, the fixed unit of pen utensil still contains fixed slide rail, pen utensil fixing base and protection soft board, the fixed slide rail of both sides fixed connection around the pen utensil is placed in the frame, the left and right sides fixed connection protection soft board respectively that the pen utensil was placed in the frame, both sides around the difference sliding connection pen utensil fixing base in two fixed slide rails, a plurality of equidistant circular fixed orificess have been seted up to the front side surface of pen utensil fixing base, are provided with the pen in every circular fixed orifices.

The fixed slide rail is used for fixing the pen fixing seat, so that the pen fixing seat is adjusted to fix pens with different lengths, the protective soft board is used for protecting the end part of the pen, the pen is prevented from being damaged in the process of moving the writing case, and the pen fixing seat is used for fixing the pen. The pen is prevented from shaking.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the multi-layer writing case has the following advantages: the rubber fixing unit is provided with a ruler rubber fixing unit, the ruler rubber fixing unit is used for fixing a sliding rail through a fixing connecting plate, a baffle is used for fixing a pulling handrail, the pulling handrail is used for driving a ruler fixing plate to move, the sliding rail is used for driving a sliding strip to slide, the sliding strip is used for driving a ruler fixing plate to slide, the ruler fixing plate is used for fixing a ruler, a U-shaped protection fixing plate is used for fixing the rear end of the ruler, a fixing ring is used for fixing the front end of the ruler so as to fix the size, a rubber protection pad is used for protecting the rubber, a fixing door plate is used for fixing the rubber so as to prevent the rubber from falling, and the handrail is used for conveniently pulling the fixing door plate so as to fix the rubber so as to finish the fixing of the ruler rubber;

2. the multi-layer writing case has the following advantages: the pen fixing device is provided with a pen fixing unit, the pen placing frame is used for fixing a pen placing frame through a fixing frame plate, the pen placing frame is used for preventing pens, the connecting groove and the second connecting strip are clamped and connected and used for fixing the fixing frame plate on a pencil box shell to place pens on the pen placing frame, the fixing frame plate is convenient to disassemble, the pens can be placed in the pencil box shell and between the fixing frame plate, the fixing slide rails are used for fixing a pen fixing seat, the pen fixing seat is adjusted to fix pens with different lengths, the protecting soft plate is used for protecting the end part of the pen, damage to the pen in the process of moving the pencil box is prevented, and the pen fixing seat is used for fixing the pen to fix the pen;

3. the multi-layer writing case has the following advantages: can be placed in a classified way, the space of the writing case is enlarged, various stationery can be placed, and the pen is fixed and is not easy to damage.

Drawings

FIG. 1 is a schematic view of a back side of the present invention in a partial sectional view;

FIG. 2 is a front view of the present invention in partial cross-section;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a portion B of FIG. 2 according to the present invention;

fig. 5 is a schematic side sectional view of the present invention.

In the figure: the pen container comprises a writing case shell body 1, a protective cover 2, a rotary column 3, a protective cover fixing clamping unit 4, a clamping plate 41L, a supporting plate 42T, a first connecting strip 43, a supporting column 44, a sliding block 45, a compression spring 46, a clamping block 47, a fixing bolt 48, an inserting block 49, a rubber fixing unit 5 ruler, a fixing connecting plate 51, a sliding rail 52, a sliding strip 53, a ruler fixing plate 54, a protection fixing plate 55U, a fixing ring 56, a pulling handrail 57, a baffle 58, a rubber protection pad 59, a handrail 510, a fixed door panel 511, a pen fixing unit 6, a pen placing frame 61, a connecting groove 62, a second connecting strip 63, a fixed frame plate 64, a fixed sliding rail 65, a pen fixing seat 66, a protection soft plate 67 and a buffer protection pad 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present embodiment provides a technical solution: a multi-layer writing case comprises a writing case shell 1, a protective cover fixing and clamping unit 4, a ruler eraser fixing unit 5 and a writing tool fixing unit 6;

the writing case housing 1: a circular through hole is formed in the position of the rear angle of the left side surface, the circular through hole penetrates through the left side and the right side of the writing case shell 1, a rotating column 3 is rotatably connected in the circular through hole, two ends of the rotating column 3 extend to the left side and the right side of the writing case shell 1 and are fixedly connected with the left side and the right side in the protective cover 2, four corners of the lower side surface of the writing case shell 1 are respectively and fixedly connected with a buffering protection pad 7, the protective cover 2 is movably connected on the writing case shell 1 through the rotating column 3, a ruler rubber fixing unit 5 is arranged on the upper side surface of the protective cover 2, and a pen fixing unit 6 is arranged in the writing case shell 1;

the protective cover fixing clamping unit 4: include L type joint board 41, T type backup pad 42, first connecting strip 43, support column 44, sliding block 45 and compression spring 46, the terminal surface of two equidistant L type joint board 41 vertical direction of visor 2's front side surface fixed connection, through first connecting strip 43 and T type backup pad 42 fixed connection in two L type joint boards 41, two equidistant rectangle spouts are seted up to T type backup pad 42's bulge's terminal surface, fixed connection support column 44's both ends respectively in two rectangle spouts, sliding connection sliding block 45 respectively on every support column 44, be located the position difference fixed connection compression spring 46's both ends between sliding block 45 downside surface and the rectangle spout internal surface in every rectangle spout, every compression spring 46 cup joints respectively on support column 44 to.

The writing case shell 1 is used for placing stationery, the rotating column 3 is used for driving the protective cover 2 to move, so that the protective cover 2 is fixed on the writing case shell 1, the buffering protection pad 7 is used for protecting the writing case shell 1, the writing case shell 1 is protected when the writing case shell 1 drops, the ruler eraser fixing unit 5 is used for fixing a ruler and an eraser, the writing tool fixing unit 6 is used for fixing and protecting a pen, the L-shaped clamping plate 41 is used for fixing the T-shaped supporting plate 42 on the L-shaped clamping plate 41 through the first connecting strip 43, the supporting column 44 is used for limiting the sliding of the sliding block 45, the sliding block 45 is used for fixing the clamping block 47 and driving the clamping block 47 to slide, the compression spring 46 can automatically rebound after the clamping block 47 moves, when fixing is needed, the clamping block 47 moves to drive the sliding block 45 to move, and the sliding block 45 compresses the compression spring 46 to clamp and fix the device, so that the interior of the writing case is protected.

The fixed joint unit 4 of visor still contains joint piece 47, fixing bolt 48 and grafting piece 49, the rear side surface of joint piece 47 of front end fixed surface connection of two sliding blocks 45, the front side surface fixed connection of stationery box casing 1 connects the grafting piece 49, rectangular joint groove has been seted up to the front side surface of grafting piece 49, the upper end surface in joint groove runs through the upside surface of grafting piece 49, rectangular joint groove and joint piece 47 are to the joint, joint piece 47 passes through fixing bolt 48 and the rectangular joint groove fixed connection on the grafting piece 49.

The clamping block 47 is fixed with the inserting block 49 through the fixing bolt 48, so that the fixation is firmer, tools in the writing case shell 1 are protected, the protective cover 2 is fixed, and the writing case shell 1 is protected.

The ruler rubber fixing unit 5 comprises a fixing connection plate 51, slide rails 52, slide bars 53, a ruler fixing plate 54, a U-shaped protection fixing plate 55, a fixing ring 56, a pulling handrail 57 and a baffle plate 58, the upper end surface of the protective cover 2 is fixedly connected with the fixing connection plate 51, a ruler placing groove is formed in the right side surface of the fixing connection plate 51, the front side and the rear side in the ruler placing groove are respectively and fixedly connected with the slide rails 52, the slide bars 53 are respectively and fixedly clamped in the two slide rails 52, the front end and the rear end of the ruler fixing plate 54 are respectively and fixedly connected with one corresponding side of the two slide bars 53, the baffle plate 58 is fixedly connected with the right side surface of the ruler fixing plate 54, the right side surface of the baffle plate 58 is movably connected with the pulling handrail 57 through a pin shaft, the ruler fixing plate 54 is in sliding connection in the ruler placing groove, the position, close to the baffle plate 58, of the upper side surface of the ruler fixing plate 54 is fixedly connected with the fixing ring 56, a ruler is fixedly clamped in the fixing plate 54, the position, the upper side surface of the ruler fixing plate 54 is far away from the baffle plate 58, the U-shaped protection fixing plate 55, and the position between the upper side of the ruler fixing plate 54 is placed.

Fixed connection board 51 is used for fixed slide rail 52, slide rail 52 is used for driving slide bar 53 and slides, slide bar 53 is used for driving ruler fixed plate 54 and slides, ruler fixed plate 54 is used for fixed ruler, U type protection fixed plate 55 is used for fixing the ruler rear end, solid fixed ring 56 is used for fixing the ruler front end, fix the size with this, prevent that the size from rocking, baffle 58 is used for fixed pulling handrail 57, pulling handrail 57 is used for driving ruler fixed plate 54 and removes, come conveniently to take the ruler, fix the ruler with this.

The ruler rubber fixing unit 5 further comprises a rubber protection pad 59, a handrail 510 and a fixed door plate 511, a rubber placing groove is formed in the position, on the left side of the ruler placing groove, of the upper side surface of the fixed connecting plate 51, rubber protection pads 59 are fixedly connected to four sides in the rubber placing groove respectively, rubber is arranged in the rubber placing groove, one side of the rubber placing groove is connected with the fixed door plate 511 in a sliding mode, and the upper side surface of the fixed door plate 511 is fixedly connected with the handrail 510.

The rubber protection pad 59 is used for protecting the rubber, the fixing door plate 511 is used for fixing the rubber and preventing the rubber from falling off, and the handrail 510 is used for conveniently pulling the fixing door plate 511 so as to fix the rubber and be convenient to take when in use.

The pen fixing unit 6 includes a pen placing frame 61, a connecting groove 62, a second connecting strip 63 and a fixing frame plate 64, the connecting groove 62 is formed in the upper side surface of the writing case casing 1, the pen placing frame 61 is arranged in the writing case casing 1, the upper end surface of the pen placing frame 61 is fixedly connected with the fixing frame plate 64, the lower side surface of the fixing frame plate 64 is fixedly connected with the second connecting strip 63 at the outer edge of the pen placing frame 61, and the second connecting strip 63 is correspondingly clamped with the connecting groove 62.

Fixed deckle board 64 is used for fixed pen to place frame 61, and pen places frame 61 and is used for preventing the pen, and spread groove 62, second connecting strip 63 joint for let fixed deckle board 64 fix on stationery box casing 1, come to place the pen on pen places frame 61, conveniently dismantle fixed deckle board 64, can also place stationery in stationery box casing 1 and between fixed deckle board 64, place multiple stationery.

The pen fixing unit 6 further comprises a fixing slide rail 65, a pen fixing seat 66 and a protecting soft plate 67, the pen is fixedly connected with the fixing slide rail 65 at the front side and the rear side of the pen placing frame 61, the left side and the right side of the pen placing frame 61 are respectively fixedly connected with the protecting soft plate 67, the two fixing slide rails 65 are respectively connected with the front side and the rear side of the pen fixing seat 66 in a sliding manner, a plurality of equidistant circular fixing holes are formed in the front side surface of the pen fixing seat 66, and a pen is arranged in each circular fixing hole.

The fixed slide rail 65 is used for fixing the pen fixing seat 66, so that the pen fixing seat 66 can be adjusted to fix pens with different lengths, the protective soft board 67 is used for protecting the end part of the pen, the pen is prevented from being damaged in the process of moving the writing case, and the pen fixing seat 66 is used for fixing the pen. The pen is prevented from shaking.

The utility model provides a pair of multilayer stationery box's theory of operation as follows: firstly, the writing case shell 1 is used for placing stationery, the rotating column 3 is used for driving the protective cover 2 to move, so that the protective cover 2 is fixed on the writing case shell 1, so that the writing case main body is assembled, then the L-shaped clamping plate 41 is used for fixing the T-shaped supporting plate 42 on the L-shaped clamping plate 41 through the first connecting strip 43, the supporting column 44 is used for limiting the sliding block 45 to slide, the sliding block 45 is used for fixing the clamping block 47 and driving the clamping block 47 to slide, the compression spring 46 is used for enabling the clamping block 47 to automatically rebound after moving, when fixing is needed, the clamping block 47 is moved by moving the clamping block 47, the sliding block 45 is used for compressing the compression spring 46 to clamp and fix the device, the clamping block 47 is fixed with the inserting block 49 through the fixing bolt 48 to enable the fixing to be firmer, so as to protect tools in the writing case shell 1, the protective cover 2 is clamped with the tool box shell 1, the fixed connecting plate 51 is used for fixing the slide rail 52, the baffle plate 58 is used for fixing the pulling handrail 57, the pulling handrail 57 is used for driving the ruler fixing plate 54 to move, the slide rail 52 is used for driving the slide bar 53 to slide, the slide bar 53 is used for driving the ruler fixing plate 54 to slide, the ruler fixing plate 54 is used for fixing the ruler, the U-shaped protective fixing plate 55 is used for fixing the rear end of the ruler, the fixing ring 56 is used for fixing the front end of the ruler so as to fix the size, the rubber protecting pad 59 is used for protecting the rubber, the fixing door plate 511 is used for fixing the rubber to prevent the rubber from falling, the handrail 510 is used for conveniently pulling the fixing door plate 511 to fix the rubber ruler, the fixing frame plate 64 is used for fixing the pen placing frame 61, the pen placing frame 61 is used for preventing the pen, the connecting groove 62 and the second connecting strip 63 from being clamped, used for letting fixed deckle board 64 fix on stationery box casing 1, come to place the pen on the frame 61 is placed to the pen utensil, the convenience is dismantled fixed deckle board 64, can also place stationery in stationery box casing 1 and between fixed deckle board 64, fixed slide rail 65 is used for fixed pen utensil fixing base 66, let pen utensil fixing base 66 adjustment position come to fix the pen of different length, protection soft board 67 is used for protecting for the tip of pen, prevent to cause the damage to the pen at the in-process that removes the stationery box, pen utensil fixing base 66 is used for fixing the pen, fix the pen, it reaches the multilayer design to separate through fixed deckle board 64 and stationery box casing 1.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A multi-layered writing case, comprising: comprises a writing case shell (1), a protective cover fixing and clamping unit (4), a ruler rubber fixing unit (5) and a writing instrument fixing unit (6);

writing case housing (1): a round through hole is formed in the position of the rear angle of the left side surface, the round through hole penetrates through the left side and the right side of the writing case shell (1), a rotating column (3) is rotatably connected in the round through hole, two ends of the rotating column (3) extend to the left side and the right side of the writing case shell (1) and are fixedly connected with the left side and the right side in the protective cover (2), four corners of the lower side surface of the writing case shell (1) are respectively and fixedly connected with a buffering protection pad (7), the protective cover (2) is movably connected on the writing case shell (1) through the rotating column (3), a ruler rubber fixing unit (5) is arranged on the upper side surface of the protective cover (2), and a pen fixing unit (6) is arranged in the writing case shell (1);

protective cover fixing clamping unit (4): include L type joint board (41), T type backup pad (42), first connecting strip (43), support column (44), sliding block (45) and compression spring (46), the terminal surface of two equidistant L type joint board (41) vertical direction of front side surface fixed connection of visor (2), through first connecting strip (43) and T type backup pad (42) fixed connection in two L type joint boards (41), two equidistant rectangle spouts have been seted up to the terminal surface of the bulge of T type backup pad (42), the both ends of fixed connection support column (44) respectively in two rectangle spouts, sliding connection sliding block (45) respectively on every support column (44), the both ends of position difference fixed connection compression spring (46) between slide block (45) downside surface and the rectangle spout internal surface in every rectangle spout, every compression spring (46) cup joint respectively on support column (44) to.

2. A multi-layered writing case as defined in claim 1, wherein: the fixed joint unit of visor (4) still contains joint piece (47), fixing bolt (48) and grafting piece (49), the rear side surface of joint piece (47) of front end fixed surface of two sliding blocks (45), the front side surface fixed connection of writing case casing (1) connects joint piece (49), the rectangle joint groove has been seted up to the front side surface of grafting piece (49), the upper end surface in joint groove runs through the upside surface that connects piece (49), rectangle joint groove and joint piece (47) are to the joint, joint piece (47) are through fixing bolt (48) and the rectangle joint groove fixed connection on grafting piece (49).

3. A multi-layered writing case as defined in claim 1, wherein: the ruler rubber fixing unit (5) comprises a fixing connecting plate (51), a slide rail (52), a slide bar (53), a ruler fixing plate (54), a U-shaped protection fixing plate (55), a fixing ring (56), a pulling handrail (57) and a baffle (58), the upper end surface of the protective cover (2) is fixedly connected with a fixed connecting plate (51), a ruler placing groove is arranged on the right side surface of the fixed connecting plate (51), the front side and the rear side in the ruler placing groove are respectively fixedly connected with a sliding rail (52), sliding strips (53) are respectively fixedly clamped in the two sliding rails (52), one corresponding side of each sliding strip (53) is respectively fixedly connected with the front end and the rear end of a ruler fixing plate (54), the right side surface of the ruler fixing plate (54) is fixedly connected with a baffle plate (58), the right side surface of the baffle (58) is movably connected with a pulling handrail (57) through a pin shaft, the ruler fixing plate (54) is connected in a sliding way in the ruler placing groove, the upper side surface of the ruler fixing plate (54) is fixedly connected with a fixing ring (56) at a position close to the baffle (58), a ruler is fixedly clamped in the fixing ring (56), the position of the upper side surface of the ruler fixing plate (54) far away from the baffle (58) is fixedly connected with a U-shaped protection fixing plate (55), a ruler is placed between the inside of the U-shaped protection fixing plate (55) and the upper side of the ruler fixing plate (54).

4. A multi-layered writing case as defined in claim 3, wherein: the ruler rubber fixing unit (5) further comprises a rubber protection pad (59), a handrail (510) and a fixed door plate (511), a rubber placing groove is formed in the position, on the left side of the ruler placing groove, of the upper side surface of the fixed connecting plate (51), four sides in the rubber placing groove are respectively fixedly connected with the rubber protection pad (59), rubber is arranged in the rubber placing groove, one side of the rubber placing groove is connected with the fixed door plate (511) in a sliding mode, and the handrail (510) is fixedly connected to the upper side surface of the fixed door plate (511).

5. A multi-layered writing case as defined in claim 1, wherein: pen utensil fixed unit (6) include that pen utensil places frame (61), spread groove (62), second connecting strip (63) and fixed deckle board (64), spread groove (62) have been seted up to the upside surface of stationery box casing (1), be provided with pen utensil in stationery box casing (1) and place frame (61), pen utensil places upper end fixed surface of frame (61) and connects fixed deckle board (64), the downside surface of fixed deckle board (64) is located pen utensil and places frame (61) outer edge's position fixed connection second connecting strip (63), second connecting strip (63) correspond the joint with spread groove (62).

6. A multi-layered writing case as defined in claim 5, wherein: the pen tool fixing unit (6) further comprises a fixed slide rail (65), a pen tool fixing seat (66) and a protective soft board (67), the pen tool is used for placing the fixed slide rail (65) of the front side and the rear side in the frame (61), the pen tool is used for placing the protective soft board (67) of the left side and the right side in the frame (61) and is respectively fixedly connected with the front side and the rear side of the pen tool fixing seat (66) in the two fixed slide rails (65), a plurality of equidistant circular fixing holes are formed in the front side surface of the pen tool fixing seat (66), and a pen is arranged in each circular fixing hole.