CN111688388B - Vertical surface chalk blackboard writing auxiliary writing device and method thereof - Google Patents
Vertical surface chalk blackboard writing auxiliary writing device and method thereof Download PDFInfo
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- CN111688388B CN111688388B CN202010431823.5A CN202010431823A CN111688388B CN 111688388 B CN111688388 B CN 111688388B CN 202010431823 A CN202010431823 A CN 202010431823A CN 111688388 B CN111688388 B CN 111688388B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 description 5
- 241000282376 Panthera tigris Species 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 210000003811 finger Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/016—Holders for crayons or chalks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/004—Manual lettering devices
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Abstract
The invention discloses an auxiliary writing device and method for writing on a vertical surface with chalk on a blackboard, and belongs to the field of teaching. A blackboard writing auxiliary writing device for chalk on a vertical surface and a method thereof comprise a display board, a rolling bearing, a movable shaft and an annular sleeve, wherein the outer wall of the display board is connected with a stand column, the outer wall of the stand column is connected with a connecting board, the stand column is in welded connection with the connecting board, a fixing rod penetrates through the inner side of the connecting board, a connecting board is arranged at the end part of the fixing rod, a strip-shaped board is arranged at the side of the connecting board, the connecting board is in cemented connection with the strip-shaped board, a sliding rail is arranged at the inner side of the strip-shaped board, a sliding block is arranged at the inner side of the sliding rail, a shell is arranged at the top of the sliding block, the sliding block is in welded connection with the shell, a spring is arranged; the chalk end part rotating and replacing device is convenient and fast to store and move.
Description
Technical Field
The invention relates to the technical field of blackboard writing auxiliary writing, in particular to a blackboard writing auxiliary writing device and a blackboard writing auxiliary writing method of chalk on a vertical surface.
Background
The chalk writing on blackboard is a writing mode widely applied to school education, has a plurality of advantages in practical application, can facilitate students to clearly watch characters on a blackboard, and simultaneously has certain influence on the respiratory tract of a teacher due to the fact that chalk dust is scattered to a certain degree due to special manufacturing raw materials of chalk, so that the traditional chalk writing on blackboard needs to be innovated.
Through retrieval, a patent with Chinese patent No. CN201910834591.5 discloses an auxiliary writing tool for writing on a vertical surface by a chalk board, which comprises a chalk rod piece, wherein the chalk rod piece comprises a writing end part and a pen supplementing end part, a chalk hole is arranged on the writing end part along the axis, a pen supplementing through groove is radially arranged on one side of the chalk hole opposite to the pen supplementing end part, the shape and the size of the chalk hole and the pen supplementing through groove are matched with chalk, the chalk enters the chalk hole through the pen supplementing through groove and moves until the writing end part is contacted with a blackboard; the chalk rod piece is provided with a tiger mouth groove and a middle finger groove on the outer peripheral surface, the tiger mouth groove is arc-shaped and comprises a thumb end and a forefinger end, the middle finger groove is arranged between the tiger mouth groove and the writing end part and is communicated with the tiger mouth groove, and a holding strip is arranged at the communication position; the chalk discharging device is characterized in that a wheel groove is formed between the thumb end and the writing end, a chalk discharging roller is arranged in the wheel groove in a rotating mode, the chalk discharging roller comprises an operation end portion extending to the peripheral surface of the chalk rod piece and a connecting end portion extending to the chalk hole and embedded into the chalk body, and the thumb drives the chalk discharging roller to rotate to extrude chalk towards the writing end. The chalk writing assisting writing tool on the vertical surface in the patent has the following defects: there is the slope of writing of chalk to a certain extent, leads to the tip of chalk to need the rotation and change, and the problem of removal is accomodate to writing device to inconvenient.
Disclosure of Invention
The invention aims to solve the problems that the end part of chalk needs to be rotated and replaced and the writing device cannot be conveniently stored and moved due to the fact that writing is inclined to a certain degree in the prior art, and provides an auxiliary writing device and method for blackboard writing with the chalk on a vertical surface.
In order to achieve the purpose, the invention adopts the following technical scheme:
a blackboard writing auxiliary writing device for chalk on a vertical surface and a method thereof comprise a display board, a rolling bearing, a movable shaft and an annular sleeve, wherein the outer wall of the display board is connected with a stand column, the outer wall of the stand column is connected with a connecting board, the stand column is in welded connection with the connecting board, a fixed rod penetrates through the inner side of the connecting board, the end part of the fixed rod is provided with a connecting board, the side of the connecting board is provided with a strip-shaped board, the connecting board is in cemented connection with the strip-shaped board, the inner side of the strip-shaped board is provided with a sliding rail, the inner side of the sliding rail is provided with a sliding block, the top of the sliding block is provided with a shell, the sliding block is in welded connection with the shell, the inner side of the shell is provided with a spring, the end part of the spring is connected with an extrusion block, the end part, the outer side of the outer pipe is connected with an elastic rope, the end part of the elastic rope is provided with a winding post, the rolling bearing is installed at the lateral side of the outer pipe, the inner side of the rolling bearing is provided with a manual rotating rod, the end part of the manual rotating rod is provided with a support, the end part of the support is connected with a limiting post, the support and the limiting post are in fusion connection, the lateral side of the limiting post is provided with a connecting rod, the outer side of the connecting rod is provided with a fixing sleeve, the outer side of the fixing sleeve is provided with an arc plate, the lateral side of the connecting rod is provided with a positioning plate, the outer side of the positioning plate is provided with a fixing strip, the outer wall of the fixing strip is provided with a locking nail, the fixing strip is in threaded connection with the locking nail, the movable shaft is arranged on the outer wall of the outer pipe, and the outer wall of the annular sleeve is provided with a round hole, and the inner wall of the annular sleeve is provided with a convex point.
Preferably, the connection plates form a detachable structure through the fixing rods and the connecting plates, and the central axes of the connection plates are parallel to the central axes of the display plates.
Preferably, the casing passes through the sliding block and constitutes sliding structure with the slide rail, and the horizontal axis of slide rail and the equal coincidence of the horizontal axis of panel and strip shaped plate.
Preferably, the number of the extrusion blocks is four with respect to the circle center of the inner tube at equal angles, the extrusion blocks and the shell form a sliding structure through springs, and the end portions of the extrusion blocks are arranged in an arc shape.
Preferably, the limiting columns are symmetrically arranged about the central axis of the support, the support is rotationally connected with the outer tube through a manual rotating rod, and the longitudinal section of the support is in a C-shaped shape.
Preferably, the connecting rod forms a sliding structure with the positioning plate through the limiting column, and the connecting rod is in interference connection with the fixing sleeve.
Preferably, the fixed strip and the outer tube form a detachable structure through the locking nail, and the radian of the outer tube is the same as that of the positioning plate.
Preferably, the movable plate forms a detachable structure with the connecting rod through the inserting rod, and the movable plate forms a rotating connection with the outer pipe through the movable shaft.
Preferably, the salient points are arranged at equal intervals relative to the inner wall of the annular sleeve, and four round holes are formed in the outer wall of the annular sleeve at equal angles.
Preferably, the blackboard writing auxiliary writing device for chalk on a vertical surface and the method thereof are characterized by comprising the following steps:
s1, when the blackboard eraser is installed and debugged, a user attaches the bottom of the strip-shaped plate to the outer wall of the display board, and enables the connecting plate at the side of the strip-shaped plate to correspond to the bottom of the connecting plate at the outer wall of the upright post, and rotates the fixing rod on the connecting plate, so that the fixing rod fixes the connecting plate, thereby completing the connection and fixation of the strip-shaped plate and the display board, facilitating the installation and disassembly of the device by the user, facilitating the operation and use of the user, then, the user can drive the horizontal position of the shell to move by the sliding of the sliding block in the sliding rail through the arrangement of the sliding rail on the strip-shaped plate, and through the arrangement of the elastic rope and the winding post, the user can write on the chalk blackboard at any position, facilitating the change of the writing position of the blackboard writing by the user, improving the writing efficiency, and the user can complete the fixation of the writing, the writing device is convenient for a user to place, the outer wall of the outer tube can be extruded through the arrangement of the extrusion block at the end part of the spring in the shell, so that the writing device is extruded and fixed, the writing device is convenient to place and take by the user, and the writing efficiency of the user is improved;
s2, a user inserts the chalk into the annular sleeve by nesting through the arrangement of the salient points inside the annular sleeve, the chalk can be fixed, the structure is simple, the chalk can be conveniently and quickly fixed and replaced by the user, the user rotates the manual rotating rod inside the rolling bearing, so that the bracket and the limiting column are driven to rotate through the manual rotating rod, the adjustment and the operation of the device part by the user are convenient, the operation experience of the user is improved, through the rotation of the limiting column, the connecting rod always moves inside the limiting column, the connecting rod is fixedly connected with the arc-shaped plate, the arc-shaped plate and the inner tube are integrally arranged, the connecting rod and the inner tube can be driven to rotate and lift, when the connecting rod slides at the horizontal position of the positioning plate, the inner tube and the chalk are driven to lift and fall, so that the user can conveniently store and stretch out the writing device, when the connecting rod slides at the vertical position of, the chalk holder can drive the inner tube to rotate, so that the end angle of a chalk is adjusted, writing of a user is facilitated, operation and use of the user are facilitated, the user can effectively control and adjust the moving position of the inner tube in the outer tube through the arrangement of the positioning plate, the user can conveniently change and adjust the position of the chalk holder, the positioning plate is fixed through the arrangement of the locking nail and the fixing strip, and the fixing mode is simple and efficient;
and S3, the user writes on the display board by holding the writing device, and the operation and use of the whole chalk writing device are completed.
Compared with the prior art, the invention provides an auxiliary writing device and method for writing on a vertical surface with chalk on a blackboard, which have the following beneficial effects:
1. according to the device and the method for assisting writing on the chalk board on the vertical surface, a user attaches the bottom of the strip-shaped board to the outer wall of the display board, the connecting board at the side of the strip-shaped board corresponds to the bottom of the connecting board at the outer wall of the upright post, and the fixing rod on the connecting board is rotated to fix the connecting board by the fixing rod, so that the strip-shaped board and the display board are connected and fixed, the device is convenient to mount and dismount by the user, and the operation and the use of the user are convenient;
2. according to the device and the method for assisting writing on the chalk board on the vertical surface, a user can complete fixing of the writing device by nesting the end part of the outer tube with the shell, the user can conveniently place the writing device, and the outer wall of the outer tube can be extruded by the arrangement of the spring end part extrusion block in the shell, so that the writing device is extruded and fixed, the user can conveniently place and take the writing device, and the writing efficiency of the user is improved;
3. the device and the method for assisting writing on the chalk board on the vertical surface are characterized in that a user rotates a manual rotating rod in a rolling bearing, so that the manual rotating rod drives a support and a limiting column to rotate, the adjustment and the operation of a device part by the user are facilitated, the operation experience of the user is improved, the connecting rod always moves in the limiting column through the rotation of the limiting column, the connecting rod is fixedly connected with an arc-shaped plate, the arc-shaped plate and an inner tube are integrally arranged, the connecting rod and the inner tube can be driven to rotate and lift, when the connecting rod slides in the horizontal position of a positioning plate, the inner tube and the chalk are driven to lift and fall, so that the user can conveniently receive and stretch the writing device for writing, when the connecting rod slides in the vertical position of the positioning plate, the inner tube can be driven to rotate, the end part angle of the chalk is adjusted, and the, the operation and the use of a user are convenient, the user can effectively control and adjust the moving position of the inner tube in the outer tube through the arrangement of the positioning plate, the user can conveniently change and adjust the position of the device, the positioning plate is fixed through the arrangement of the locking nail and the fixing strip, and the fixing mode is simple and efficient;
the parts which are not involved in the device are the same as those in the prior art or can be realized by adopting the prior art, the end part of the chalk needs to be rotated and replaced conveniently, and the writing device is convenient to store and move.
Drawings
FIG. 1 is a schematic diagram of the overall front structure of a vertical-surface chalk blackboard writing assisting device and method thereof according to the present invention;
FIG. 2 is a schematic view of a connecting structure of a display board and a strip board of the device and method for assisting writing blackboard writing with chalk on a vertical surface according to the present invention;
FIG. 3 is a schematic top view of the outer structure of the casing of the device and method for assisting writing blackboard with chalk on the vertical surface according to the present invention;
FIG. 4 is a schematic view of the internal three-dimensional structure of the inner tube of the device and method for assisting writing blackboard with chalk on the vertical surface according to the present invention;
FIG. 5 is a schematic diagram of the external perspective structure of the outer tube of the device and method for assisting writing blackboard chalk on vertical surface in accordance with the present invention;
FIG. 6 is an enlarged schematic view of the writing aid with chalk on the vertical surface and the writing method thereof shown in FIG. 1;
fig. 7 is an enlarged structural diagram of the vertical surface chalk blackboard writing assisting device and the method thereof in fig. 3, which is shown at B.
In the figure: the device comprises a display plate 1, upright posts 2, a connecting plate 3, a fixing rod 4, a connecting plate 5, a strip-shaped plate 6, a sliding rail 7, a sliding block 8, a shell 9, a spring 10, an extrusion block 11, an outer tube 12, an inner tube 13, an elastic rope 14, a winding post 15, a rolling bearing 16, a manual rotating rod 17, a support 18, a limiting post 19, a connecting rod 20, a fixing sleeve 21, an arc-shaped plate 22, a positioning plate 23, a fixing strip 24, a locking nail 25, a movable shaft 26, a movable plate 27, an insertion rod 28, an annular sleeve 29, a circular hole 30 and salient points 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, an auxiliary writing device for chalk board writing on a vertical surface comprises a display board 1, a stand column 2, a connecting board 3, a fixing rod 4, a connecting board 5, a strip-shaped board 6, a slide rail 7, a slide block 8, a shell 9, a spring 10, an extrusion block 11, an outer tube 12, an inner tube 13, an elastic rope 14, a winding post 15, a rolling bearing 16, a manual rotating rod 17, a bracket 18, a limit post 19, a connecting rod 20, a fixing sleeve 21, an arc-shaped board 22, a positioning board 23, a fixing strip 24, a locking nail 25, a movable shaft 26, a movable plate 27, a penetration rod 28, an annular sleeve 29, a round hole 30 and a salient point 31, wherein the stand column 2 is connected to the outer wall of the display board 1, the connecting board 3 is connected to the outer wall of the stand column 2, the stand column 2 is welded to the connecting board 3, the fixing rod 4 penetrates through the inner side of the connecting board 3, the connecting board, the connecting plate 5 is connected with the strip-shaped plate 6 by gluing, the strip-shaped plate 6 is provided with a slide rail 7 on the inner side, the slide rail 7 is provided with a slide block 8 on the inner side, the top of the slide block 8 is provided with a shell 9, the slide block 8 is connected with the shell 9 by welding, the shell 9 is provided with a spring 10 on the inner side, the end of the spring 10 is connected with an extrusion block 11, the end of the extrusion block 11 is provided with an outer tube 12, the inner tube 12 is provided with an inner tube 13 on the inner side, the outer tube 12 is movably connected with the inner tube 13, the outer tube 12 is connected with an elastic rope 14 on the outer side, the end of the elastic rope 14 is provided with a winding post 15, a rolling bearing 16 is arranged on the lateral side of the outer tube 12, the rolling bearing 16 is provided with a manual rotating rod 17 on the inner side, the end of the manual rotating rod 17 is provided, the side of the limiting column 19 is provided with a connecting rod 20, the outer side of the connecting rod 20 is provided with a fixing sleeve 21, the outer side of the fixing sleeve 21 is provided with an arc plate 22, the side of the connecting rod 20 is provided with a positioning plate 23, the outer side of the positioning plate 23 is provided with a fixing strip 24, the outer wall of the fixing strip 24 is provided with a locking nail 25, the fixing strip 24 is in threaded connection with the locking nail 25, a movable shaft 26 is arranged on the outer wall of the outer tube 12, the top of the movable shaft 26 is provided with a movable plate 27, the inner side of the movable plate 27 is provided with an inserting rod 28, an annular sleeve 29 is arranged at the end of the inner tube 13, the outer wall of the annular sleeve 29 is;
furthermore, the connecting plate 3 and the connecting plate 5 form a detachable structure through the fixing rod 4, the central axis of the connecting plate 3 is parallel to the central axis of the display board 1, when the device is installed and debugged, a user fits the bottom of the strip-shaped plate 6 with the outer wall of the display board 1, the connecting plate 5 on the side of the strip-shaped plate 6 corresponds to the bottom of the connecting plate 3 on the outer wall of the upright post 2, the fixing rod 4 on the connecting plate 3 is rotated, and the fixing rod 4 fixes the connecting plate 5, so that the connecting and fixing of the strip-shaped plate 6 and the display board 1 are completed, the device is convenient to install and detach by the user, and the operation and use of the user are convenient;
furthermore, the shell 9 forms a sliding structure with the sliding rail 7 through the sliding block 8, the transverse central axis of the sliding rail 7 coincides with the transverse central axes of the display board 1 and the strip-shaped board 6, a user can slide in the sliding rail 7 through the arrangement of the sliding rail 7 on the strip-shaped board 6, the horizontal position of the shell 9 is driven to move, and through the arrangement of the elastic rope 14 and the winding post 15, the user can freely change positions to write on the chalk blackboard writing, the blackboard writing position of the user can be conveniently changed, and the writing efficiency is improved;
furthermore, four extrusion blocks 11 are arranged at equal angles relative to the circle center of the inner tube 13, the extrusion blocks 11 and the shell 9 form a sliding structure through springs 10, the end portions of the extrusion blocks 11 are arranged in an arc shape, a user can complete the fixation of the writing device by nesting the end portions of the outer tube 12 and the shell 9, the user can place the writing device conveniently, the outer wall of the outer tube 12 can be extruded through the arrangement of the extrusion blocks 11 at the end portions of the springs 10 in the shell 9, the writing device can be extruded and fixed, the user can place and take the writing device conveniently, and the writing efficiency of the user is improved;
furthermore, two limiting columns 19 are symmetrically arranged about the central axis of the support 18, the support 18 is rotatably connected with the outer tube 12 through a manual rotating rod 17, the longitudinal section of the support 18 is in a C-shaped shape, and a user rotates the manual rotating rod 17 inside the rolling bearing 16, so that the support 18 and the limiting columns 19 are driven to rotate through the manual rotating rod 17, the adjustment and the operation of the device parts by the user are facilitated, and the operation experience of the user is improved;
furthermore, the connecting rod 20 and the positioning plate 23 form a sliding structure through the limiting column 19, the connecting rod 20 and the fixing sleeve 21 are in interference connection, and through the rotation of the limiting column 19, the connecting rod 20 moves inside the limiting column 19 all the time, the connecting rod 20 and the arc-shaped plate 22 are fixedly connected, and the arc-shaped plate 22 and the inner tube 13 are integrally arranged, so that the connecting rod 20 and the inner tube 13 can be driven to rotate and lift;
furthermore, the fixing strip 24 and the outer tube 12 form a detachable structure through the locking nail 25, the radian of the outer tube 12 is the same as that of the positioning plate 23, and when the connecting rod 20 slides at the horizontal position of the positioning plate 23, the inner tube 13 and the chalk are driven to ascend and descend, so that a user can conveniently store and stretch out the writing device for writing;
furthermore, the movable plate 27 forms a detachable structure with the connecting rod 20 through the inserting rod 28, the movable plate 27 forms a rotating connection with the outer tube 12 through the movable shaft 26, when the connecting rod 20 slides at the vertical position of the positioning plate 23, the inner tube 13 can be driven to rotate, so that the end angle of the chalk can be adjusted, writing of a user is facilitated, operation and use of the user are facilitated, the user can effectively control and adjust the moving position of the inner tube 13 in the outer tube 12 through the arrangement of the positioning plate 23, the user can change and adjust the position of the device conveniently, the positioning plate 23 is fixed through the arrangement of the locking nail 25 and the fixing strip 24, and the fixing mode is simple and efficient;
further, the salient point 31 is equidistant setting about the inner wall of annular sleeve 29, and four round holes 30 have been seted up to the outer wall isogonism of annular sleeve 29, and the user can fix the chalk through the setting of the inside salient point 31 of annular sleeve 29, with the inside that the chalk was nested to insert annular sleeve 29, simple structure, convenient user is fixed and quick replacement to the chalk.
In the invention, when the device is installed and debugged, a user attaches the bottom of the strip-shaped plate 6 to the outer wall of the display board 1, enables the connecting plate 5 at the side of the strip-shaped plate 6 to correspond to the bottom of the connecting plate 3 at the outer wall of the upright post 2, rotates the fixing rod 4 on the connecting plate 3, enables the fixing rod 4 to fix the connecting plate 5, thereby completing the connection and fixation of the strip-shaped plate 6 and the display board 1, facilitating the installation and disassembly of the device by the user, facilitating the operation and use of the user, then, the user can drive the shell 9 to move horizontally by the sliding of the sliding block 8 in the sliding rail 7 through the arrangement of the sliding rail 7 on the strip-shaped plate 6, and through the arrangement of the elastic rope 14 and the winding post 15, the user can write on the chalk blackboard at any position, facilitating the change of the blackboard writing position of the user, and improving the, the user can complete the fixation of the writing device by nesting the end part of the outer tube 12 and the shell 9, the user can conveniently place the writing device, the outer wall of the outer tube 12 can be extruded by the arrangement of the extrusion block 11 at the end part of the spring 10 in the shell 9, so that the writing device is extruded and fixed, the user can conveniently place and take the writing device, and the writing efficiency of the user is improved;
then, the user inserts the chalk nest into the annular sleeve 29 through the arrangement of the salient point 31 inside the annular sleeve 29, the chalk can be fixed, the structure is simple, the chalk fixing and quick replacement by the user are convenient, the user rotates the manual rotating rod 17 inside the rolling bearing 16, so that the bracket 18 and the limiting column 19 are driven to rotate through the manual rotating rod 17, the adjustment and operation of the device parts by the user are convenient, the operation experience of the user is improved, through the rotation of the limiting column 19, the connecting rod 20 always moves inside the limiting column 19, the connecting rod 20 is fixedly connected with the arc-shaped plate 22, the arc-shaped plate 22 and the inner tube 13 are integrally arranged, the connecting rod 20 and the inner tube 13 can be driven to rotate and lift, when the connecting rod 20 slides at the horizontal position of the positioning plate 23, the inner tube 13 and the chalk are driven to lift and fall, and the user can conveniently store and stretch out the writing device, when the connecting rod 20 slides at the vertical position of locating plate 23, can drive the rotation of inner tube 13 to adjust the tip angle of chalk, convenience of customers's writing, convenient user's operation and use, the user can effective control and adjust the shift position of the inside inner tube 13 of outer tube 12 through the setting of locating plate 23, convenient user carries out position fixing, the fixed mode is simple high-efficient to the transform and the regulation of device position, and carry out position fixing to locating plate 23 through the setting of locking pin 25 and fixed strip 24.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. The utility model provides a supplementary device of writing of chalk blackboard writing on vertical face, includes panel (1), antifriction bearing (16), loose axle (26) and annular cover (29), its characterized in that, the outer wall of panel (1) links up and has stand (2), and the outer wall of stand (2) is connected with linking plate (3), and be welded connection between stand (2) and linking plate (3), the inboard of linking plate (3) has run through dead lever (4), and the tip of dead lever (4) is provided with connecting plate (5), the avris of connecting plate (5) is provided with strip shaped plate (6), and is glued connection between connecting plate (5) and strip shaped plate (6), and slide rail (7) have been seted up to the inboard of strip shaped plate (6), the inboard of slide rail (7) is provided with sliding block (8), and the top of sliding block (8) is provided with casing (9), and the sliding block (8) is welded with the shell (9), the inner side of the shell (9) is provided with a spring (10), the end part of the spring (10) is connected with an extrusion block (11), the end part of the extrusion block (11) is provided with an outer tube (12), the inner side of the outer tube (12) is provided with an inner tube (13), the outer tube (12) is movably connected with the inner tube (13), the outer side of the outer tube (12) is connected with an elastic rope (14), the end part of the elastic rope (14) is provided with a winding post (15), a rolling bearing (16) is arranged at the side of the outer tube (12), the inner side of the rolling bearing (16) is provided with a manual rotating rod (17), the end part of the manual rotating rod (17) is provided with a bracket (18), the end part of the bracket (18) is connected with a limit post (19), and the bracket (18) is welded with the limit post (, a connecting rod (20) is arranged at the side of the limiting column (19), a fixing sleeve (21) is arranged at the outer side of the connecting rod (20), an arc-shaped plate (22) is arranged on the outer side of the fixed sleeve (21), a positioning plate (23) is arranged on the side of the connecting rod (20), and the outer side of the positioning plate (23) is provided with a fixing strip (24), the outer wall of the fixing strip (24) is provided with a locking nail (25), the fixed strip (24) is in threaded connection with the locking nail (25), the movable shaft (26) is arranged on the outer wall of the outer tube (12), the top of the movable shaft (26) is provided with a movable plate (27), and the inner side of the movable plate (27) is provided with a through insertion rod (28), the annular sleeve (29) is arranged at the end part of the inner pipe (13), and the outer wall of the annular sleeve (29) is provided with a round hole (30), and the inner wall of the annular sleeve (29) is provided with a salient point (31).
2. A vertical surface chalk board writing auxiliary device according to claim 1 characterized in that the connection plate (3) is detachable from the connection plate (5) by means of fixing rods (4) and the central axis of the connection plate (3) is parallel to the central axis of the display board (1).
3. The blackboard writing auxiliary writing device for chalk on vertical surface according to claim 1, characterized in that the casing (9) and the sliding rail (7) form a sliding structure through the sliding block (8), and the horizontal central axis of the sliding rail (7) coincides with the horizontal central axes of the display board (1) and the strip-shaped board (6).
4. The vertical surface chalk blackboard writing auxiliary writing device according to claim 3, characterized in that the four squeezing blocks (11) are arranged at equal angles with respect to the center of the inner tube (13), the squeezing blocks (11) form a sliding structure with the casing (9) through the springs (10), and the ends of the squeezing blocks (11) are arranged in an arc shape.
5. The vertical surface chalk writing board auxiliary writing device according to claim 1, characterized in that the two limiting columns (19) are symmetrically arranged about the central axis of the support (18), the support (18) is rotatably connected with the outer tube (12) through a manual rotating rod (17), and the longitudinal section of the support (18) is in a C-shaped arrangement.
6. The vertical surface chalk blackboard writing auxiliary writing device according to any one of claims 1 to 5, characterized in that the connecting rod (20) and the positioning plate (23) form a sliding structure through the limiting column (19), and the connecting rod (20) and the fixing sleeve (21) are in interference connection.
7. A vertical surface chalk board writing auxiliary device according to any of claims 1-5 characterized in that the fixing strip (24) is detachable from the outer tube (12) by means of a locking pin (25) and the arc of the outer tube (12) is the same as the arc of the positioning plate (23).
8. The vertical surface chalk board writing auxiliary writing device according to claim 1, characterized in that the movable plate (27) is detachably connected with the connecting rod (20) through a penetration rod (28), and the movable plate (27) is rotatably connected with the outer tube (12) through a movable shaft (26).
9. The vertical surface chalk blackboard writing auxiliary writing device according to claim 1, characterized in that the salient points (31) are arranged at equal intervals with respect to the inner wall of the annular sleeve (29), and the outer wall of the annular sleeve (29) is provided with four round holes (30) at equal angles.
10. A method of using a vertical surface chalk writing board assisted writing apparatus as in claim 1, comprising the steps of:
s1, when the blackboard eraser is installed and debugged, a user attaches the bottom of a strip-shaped plate (6) to the outer wall of a display board (1), the connecting plate (5) at the side of the strip-shaped plate (6) corresponds to the bottom of a connecting plate (3) at the outer wall of a stand column (2), and a fixing rod (4) on the connecting plate (3) is rotated, so that the fixing rod fixes the connecting plate (5), thereby completing the connection and fixation of the strip-shaped plate (6) and the display board (1), the blackboard eraser is convenient for the user to install and detach, convenient for the user to operate and use, then, the user can set a sliding rail (7) on the strip-shaped plate (6), can slide in the sliding rail (7) through a sliding block (8), drive the shell (9) to move horizontally, and can write blackboard writing at any position through the arrangement of an elastic chalk rope (14) and a winding post (15), the writing position of the writing board of a user can be conveniently changed, the writing efficiency is improved, the user can complete the fixation of the writing device by nesting the end part of the outer pipe (12) with the shell (9), the user can conveniently place the writing device, the outer wall of the outer pipe (12) can be extruded by arranging the end part extrusion block (11) of the spring (10) in the shell (9), so that the writing device can be extruded and fixed, the user can conveniently place and take the writing device, and the writing efficiency of the user is improved;
s2, a user inserts the chalk into the annular sleeve (29) through the arrangement of the salient point (31) inside the annular sleeve (29), the chalk can be fixed, the structure is simple, the chalk can be fixed and replaced quickly by the user, the user rotates the manual rotating rod (17) inside the rolling bearing (16), the bracket (18) and the limiting column (19) are driven to rotate through the manual rotating rod (17), the user can adjust and operate the device component conveniently, the operation experience of the user is improved, the connecting rod (20) can move inside the limiting column (19) all the time through the rotation of the limiting column (19), the connecting rod (20) is fixedly connected with the arc-shaped plate (22), the arc-shaped plate (22) and the inner tube (13) are arranged integrally, the connecting rod (20) and the inner tube (13) can be driven to rotate and lift, and when the connecting rod (20) slides on the horizontal position of the positioning plate (23), the lifting and descending of the inner tube (13) and the chalk are driven, so that a user can conveniently store and stretch out the writing device for writing, when the connecting rod (20) slides at the vertical position of the positioning plate (23), the inner tube (13) can be driven to rotate, the angle of the end part of the chalk is adjusted, the user can write conveniently, the user can operate and use conveniently, the user can effectively control and adjust the moving position of the inner tube (13) in the outer tube (12) through the positioning plate (23), the user can change and adjust the position of the device conveniently, the positioning plate (23) is fixed through the locking nails (25) and the fixing strips (24), and the fixing mode is simple and efficient;
s3, the user writes on the display board (1) by holding the writing device, and the operation and the use of the whole chalk writing device are completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010431823.5A CN111688388B (en) | 2020-05-20 | 2020-05-20 | Vertical surface chalk blackboard writing auxiliary writing device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010431823.5A CN111688388B (en) | 2020-05-20 | 2020-05-20 | Vertical surface chalk blackboard writing auxiliary writing device and method thereof |
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| CN111688388A CN111688388A (en) | 2020-09-22 |
| CN111688388B true CN111688388B (en) | 2021-04-16 |
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| CN203844463U (en) * | 2014-05-30 | 2014-09-24 | 袁训军 | Device for quickly discharging and changing cores |
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| CN110549770A (en) * | 2019-09-05 | 2019-12-10 | 温州市爱好笔业有限公司 | Vertical face is gone up supplementary writing instrument of chalk blackboard writing |
| CN210234473U (en) * | 2019-07-18 | 2020-04-03 | 佳木斯大学 | Chalk clamping device is used in teaching of mr of Japanese university |
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| US4364184A (en) * | 1977-10-04 | 1982-12-21 | Letraset Corporation | Indicia alignment device |
| CN203844463U (en) * | 2014-05-30 | 2014-09-24 | 袁训军 | Device for quickly discharging and changing cores |
| CN104228406A (en) * | 2014-08-25 | 2014-12-24 | 苏州市职业大学 | Chalk sleeve for drawing various straight lines and circles |
| CN208698261U (en) * | 2018-01-22 | 2019-04-05 | 宜春学院 | A kind of clamping device for teaching chalk |
| CN210234473U (en) * | 2019-07-18 | 2020-04-03 | 佳木斯大学 | Chalk clamping device is used in teaching of mr of Japanese university |
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| CN111688388A (en) | 2020-09-22 |
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