CN210792601U

CN210792601U - Advanced mathematics teaching draws device with portable curve

Info

Publication number: CN210792601U
Application number: CN201921346575.3U
Authority: CN
Inventors: 范志远
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-19
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a portable curve drawing device for advanced math teaching in the technical field of teaching tools, which comprises a moving base, wherein the right side of the outer wall at the top of the containing box is hinged with a sealing cover, the top of the outer wall at the right side of the containing box is hinged with a drawing board mounting frame, the outer walls at the front side and the rear side of the placing board are both provided with sliding grooves, when in use, a sliding movable block is used for changing the positions of a longitudinal coordinate positioning rod and a transverse coordinate positioning rod, a sleeve pipe reaches a specified coordinate, then a T-shaped rod is pressed, the T-shaped rod drives a marking pen to mark points on the drawing board, then a movable plate drives a sliding block to move left and right under the limitation of an ejector rod by a rotatable screw rod to adapt to the height and the drawing posture of a teacher, when a complex curve drawn on the drawing board is temporarily not used, a positioning insertion rod is pulled, when taking next time, reset spring resets and can be ejecting with elevator and installing frame, makes things convenient for the teacher to take.

Description

Advanced mathematics teaching draws device with portable curve

Technical Field

The utility model relates to a teaching tool technical field specifically is a device is drawn with portable curve to advanced math teaching.

Background

When explaining the function curve on high mathematics class, in order to show the meaning that the function expresses to classmates more directly perceivedly, generally need draw the function curve on the blackboard, but the blackboard can not adjust according to teacher's height and drawing posture, it is comparatively hard when drawing, and draw the curve and need consume the certain time, some comparatively complicated curves can not obtain reuse after drawing out, consequently, teacher's work load has been increased, and the teacher holds the chalk to draw the point and then connect the curve error that obtains great when drawing, for this reason, we propose a high mathematics teaching and use portable curve drawing device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is drawn with portable curve to advanced mathematics teaching to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a portable curve drawing device for advanced math teaching comprises a movable base, wherein four corners of the outer wall of the top of the movable base are respectively provided with a height adjusting foot, four groups of height adjusting feet are fixedly connected with a placing plate at the top, the top of the placing plate is provided with a containing box, the inner cavity of the containing box is uniformly provided with a containing groove, the right side of the outer wall of the top of the containing box is hinged with a sealing cover, the top of the outer wall of the right side of the containing box is hinged with a drawing plate mounting frame, the outer walls of the front side and the back side of the placing plate are respectively provided with a sliding groove, the sliding grooves are connected with sliding blocks in a sliding manner, the outer walls of the two groups of sliding blocks at the opposite sides are respectively hinged with a connecting rod, the top of the connecting rod is hinged with the, the right end of the ejector rod is fixedly connected with the outer wall of the left side of the sliding block, the outer wall of the left side of the drawing plate mounting rack is provided with four groups of grooves in a rectangular array, movable blocks are connected in the grooves in a sliding mode, one opposite end of two groups of the movable blocks at the upper side and the lower side are fixedly connected with a longitudinal coordinate positioning rod, one opposite end of two groups of the movable blocks at the front side and the rear side are fixedly connected with a transverse coordinate positioning rod, the longitudinal coordinate positioning rod and the transverse coordinate positioning rod are not on the same vertical plane, a drawing point assembly is sleeved on the outer wall of the transverse coordinate positioning rod and is provided with a groove matched with the longitudinal coordinate positioning rod, movable grooves are symmetrically arranged on the top inner wall and the bottom inner wall of the drawing plate mounting rack, mounting frames are connected in the two groups of movable grooves in a sliding mode, a groove matched with the mounting, and the outer wall of the top of the mounting frame is provided with a positioning groove matched with the positioning insertion rod, the middle parts of the inner walls of the periphery of the mounting frame are provided with sliding grooves, and the four groups of movable grooves are connected with drawing boards in a clamping manner.

Furthermore, the drawing point assembly comprises a sleeve which is in sliding connection with the abscissa positioning rod, a T-shaped rod is movably inserted at the top of the sleeve, a marking pen is movably inserted at the outer wall of the bottom of the T-shaped rod, the bottom of the marking pen extends to the outer wall of the bottom of the sleeve, a spring is fixedly connected with the connecting part of the outer wall of the top of the sleeve and the T-shaped rod, the spring is sleeved on the outer wall of the bottom of the T-shaped rod, the diameter of the spring is smaller than that of the top of the T-shaped rod, fixed blocks are arranged on the left side and the right side of the outer wall of the bottom of the sleeve, compression springs are evenly arranged on the outer walls of the two groups of fixed blocks on the opposite sides, rubber blocks are fixedly connected with opposite ends of the.

Further, the bottom symmetry of accomodating groove left and right sides inner wall is provided with the movable groove, and sliding connection has the lifter plate in two sets of movable grooves, lifter plate bottom outer wall evenly is provided with reset spring, reset spring bottom and accomodating bottom of the groove inner wall fixed connection, reset spring is provided with five groups to ten groups around, it is provided with five groups to ten groups altogether to accomodate the groove.

Further, the outer wall of the top of the lifting plate is provided with a placing groove, the longitudinal section of the placing groove is trapezoidal, and the width of the top section of the placing groove is larger than that of the bottom section of the placing groove.

Further, sealed lid top outer wall evenly is provided with and accomodates groove matched with rubber seal piece, rubber seal piece longitudinal section is trapezoidal, and its top cross-sectional width is less than bottom cross-sectional width.

Compared with the prior art, the beneficial effects of the utility model are that: when the marking device is used, the movable block is slid to change the positions of the vertical coordinate positioning rod and the horizontal coordinate positioning rod, so that the sleeve reaches an appointed coordinate, then the T-shaped rod is pressed, the T-shaped rod drives the marking pen to mark a point on the drawing plate, the spring is compressed at the moment, the rubber block is pressed against the direction of the marking pen by the elastic force generated by the reset of the compression spring, the effect of protecting the marking pen is started, the marking pen is prevented from being broken by stress, the T-shaped rod is loosened after the marking point, the marking pen is retracted to the inner cavity of the sleeve by the reset of the spring at the moment, the collision with the marking pen when the installation frame is pulled is avoided, the coordinate is determined by the match of the vertical coordinate positioning rod and the horizontal coordinate positioning rod to mark the point, the accuracy of the marking point is improved, then the movable plate is driven by the rotatable screw rod to move left and right, adapt to teacher's height and drawing posture, the teacher of being convenient for draws, when the complicated curve that draws on drawing the board does not use temporarily, extract the location inserted bar and pull out the installing frame, then insert the installing frame and accomodate the groove, reset spring this moment can be compressed, then will seal the lid upset and cover tightly, make the containing box seal and will draw the board of drawing that has complicated curve and collect, when taking next time, reset spring resets and can be ejecting with elevator and installing frame, make things convenient for the teacher to take.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between the mounting frame and the mounting frame;

fig. 3 is the schematic view of the connection between the abscissa positioning rod and the sleeve of the present invention.

In the figure: 1. moving the base; 2. a height adjustment foot; 3. placing the plate; 4. a storage box; 5. a receiving groove; 6. a sealing cover; 7. a rubber sealing block; 8. a lifting plate; 9. a return spring; 10. drawing a board mounting rack; 11. a chute; 12. a slider; 13. a connecting rod; 14. a screw; 15. a movable plate; 16. a top rod; 17. a groove; 18. a movable block; 19. a vertical coordinate positioning rod; 20. a horizontal coordinate positioning rod; 21. a drawing point component; 22. installing a frame; 23. drawing boards; 24. positioning the inserted rod; 25. a positioning groove; 26. a T-shaped rod; 27. a marking pen; 28. a spring; 29. a fixed block; 30. a compression spring; 31. a rubber block; 32. a sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. 1-3, the present invention provides a technical solution: a portable curve drawing device for advanced math teaching comprises a movable base 1, a teacher can conveniently move the device to a proper position for drawing, four corners of the outer wall of the top of the movable base 1 are respectively provided with a height adjusting foot 2 which is suitable for the height of the teacher, the tops of four groups of height adjusting feet 2 are fixedly connected with a placing plate 3, the top of the placing plate 3 is provided with a containing box 4, the inner cavity of the containing box 4 is uniformly provided with a containing groove 5, the right side of the outer wall of the top of the containing box 4 is hinged with a sealing cover 6, when a complex curve drawn on a drawing plate 23 is temporarily not used, a positioning insertion rod 24 is pulled out to pull out an installation frame 22, the installation frame 22 is inserted into the containing groove 5, then the sealing cover 6 is turned over and covered tightly, the complex curve on the drawing plate 23 is collected, an elastic buckle at the right end of the sealing cover 6 enables the sealing cover 6 to tightly abut against the containing box 4 to, the outer walls of the front side and the rear side of the placing plate 3 are respectively provided with a sliding groove 11, the sliding grooves 11 are connected with sliding blocks 12 in a sliding manner, the outer walls of two groups of sliding blocks 12 on the opposite sides are respectively hinged with a connecting rod 13, the top of the connecting rod 13 is hinged with the bottom of the outer wall on the right side of the drawing plate mounting frame 10, the center of the outer wall on the left side of the placing plate 3 is connected with a screw 14 through a bearing, the outer wall of the screw 14 is sleeved with a movable plate 15, the front end and the rear end of the outer wall on the right side of the movable plate 15 are respectively provided with a top rod 16, the right end of the top rod 16 is fixedly connected with the outer wall on the left side of the sliding block 12, the movable plate 15 drives the sliding blocks 12 to move left and right under the, the movable blocks 18 are connected in the groove 17 in a sliding manner, the opposite ends of the two groups of movable blocks 18 on the upper and lower sides are fixedly connected with a vertical coordinate positioning rod 19, the opposite ends of the two groups of movable blocks 18 on the front and rear sides are fixedly connected with an horizontal coordinate positioning rod 20, the vertical coordinate positioning rod 19 and the horizontal coordinate positioning rod 20 are not on the same vertical plane, the outer wall of the horizontal coordinate positioning rod 20 is sleeved with a drawing point component 21, the movable blocks 18 are slid to change the positions of the vertical coordinate positioning rod 19 and the horizontal coordinate positioning rod 20, so that the drawing point component 21 reaches a specified coordinate, then the coordinate of the point can be marked by pressing the drawing point component 21, the accuracy of the marking point is improved, the drawing point component 21 is provided with a slot matched with the vertical coordinate positioning rod 19, the inner walls at the top and the bottom of the drawing board mounting rack 10 are symmetrically provided with movable grooves, the mounting frames 22 are connected in the two, drawing board mounting bracket 10 top outer wall center activity grafting location inserted bar 24, and mounting frame 22 top outer wall be provided with location inserted bar 24 matched with positioning groove 25, the mounting frame 22 inner wall middle part all is provided with the sliding tray all around, and four groups of movable inslots joint have drawing board 23.

As shown in fig. 3, the pointing module 21 includes a sleeve 32 slidably connected to the abscissa positioning rod 20, a T-bar 26 is movably inserted into the top of the sleeve 32, a marker 27 is movably inserted into the outer wall of the bottom of the T-bar 26, the marker 27 is an erasable marker pen or chalk, the bottom of the marker 27 extends to the outer wall of the bottom of the sleeve 32, a spring 28 is fixedly connected to the connection portion of the outer wall of the top of the sleeve 32 and the T-bar 26, the spring 28 is sleeved on the outer wall of the bottom of the T-bar 26, the diameter of the spring 28 is smaller than that of the top of the T-bar 26, fixing blocks 29 are respectively disposed on the left and right sides of the outer wall of the bottom of the sleeve 32, compression springs 30 are uniformly disposed on the outer wall of the opposite sides of the two fixing blocks 29, rubber blocks 31 are fixedly connected to the opposite ends of the two compression springs 30 on the left and right sides, pressing the T-shaped rod 26 to enable the T-shaped rod 26 to drive the marking pen 27 to mark the drawing board 23, wherein the spring 28 is compressed, the rubber block 31 is tightly propped against the marking pen 27 by the elastic force generated by resetting of the compression spring 30, the effect of protecting the marking pen 27 is started to avoid the marking pen 27 from being broken by stress, the T-shaped rod 26 is loosened after marking, and the spring 28 is reset to recover the marking pen 27 to the inner cavity of the sleeve 32 to avoid collision with the marking pen 27 when the mounting frame 22 is pulled;

as shown in fig. 1, the bottoms of the inner walls of the left side and the right side of the accommodating groove 5 are symmetrically provided with movable grooves, and two groups of movable grooves are connected with a lifting plate 8 in a sliding manner, the outer wall of the bottom of the lifting plate 8 is uniformly provided with a return spring 9, the bottom of the return spring 9 is fixedly connected with the inner wall of the bottom of the accommodating groove 5, when the mounting frame 22 is inserted into the inner cavity of the accommodating groove 5, the lifting plate 8 is compressed downwards, when the sealing cover 6 is opened, the lifting plate 8 can be ejected out from the mounting frame 22 under the effect of the return spring 9, so that a teacher can take out the lifting plate conveniently, five groups to ten groups are arranged in front of and behind the return spring 9, the lifting block 8 is kept stable during lifting;

as shown in fig. 1, a placing groove is formed in the outer wall of the top of the lifting plate 8, the longitudinal section of the placing groove is trapezoidal, the width of the top section of the placing groove is larger than that of the bottom section of the placing groove, and when the mounting frame 22 is inserted, positioning is rapidly completed, so that the mounting frame 22 is located in the center of the inner cavity of the accommodating groove 5;

as shown in fig. 1, the sealed 6 top outer walls of lid evenly be provided with accomodate groove 5 matched with sealed piece 7 of rubber, the elasticity that sealed piece 7 deformation of rubber produced supports mounting frame 22 tightly, and mounting frame 22 rocks accomodating groove 5 inner chamber when avoiding the transportation, and sealed 7 longitudinal section of piece of rubber is trapezoidal, and its top cross-sectional width is less than bottom cross-sectional width, and the sealed piece 7 of rubber of being convenient for inserts and accomodates 5 inner chambers of groove and support tightly the mounting frame 22 top.

Example (b): when in use, the slide movable block 18 changes the positions of the ordinate positioning bar 19 and the abscissa positioning bar 20 to bring the plotting unit 21 to a predetermined coordinate, then the coordinates of the point can be marked by pressing the drawing point component 21, the accuracy of the point marking is improved, then the screw 14 can be rotated to enable the movable plate 15 to drive the slide block 12 to move left and right under the limitation of the ejector rod 16, the slide block 12 moves left and right to drive the connecting rod 13 to lift, the connecting rod 13 lifts to enable the drawing board mounting rack 10 to incline to adapt to the height and drawing posture of a teacher, so that the teacher can draw conveniently, when the complex curve drawn on the drawing board 23 is temporarily not used, the positioning insertion rod 24 is pulled out to pull out the mounting frame 22, then the mounting frame 22 is inserted into the containing groove 5, and then the sealing cover 6 is turned over and covered tightly, so that the containing box 4 is closed to store the complex curve on the drawing board 23, and the complex curve is convenient to take for use next time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a device is drawn with portable curve to advanced mathematics teaching, is including removing base (1), its characterized in that: the four corners of the outer wall of the top of the movable base (1) are provided with height adjusting feet (2), the tops of the four groups of height adjusting feet (2) are fixedly connected with a placing plate (3), the top of the placing plate (3) is provided with a containing box (4), the inner cavity of the containing box (4) is uniformly provided with containing grooves (5), the right side of the outer wall of the top of the containing box (4) is hinged with a sealing cover (6), the top of the outer wall of the right side of the containing box (4) is hinged with a drawing plate mounting rack (10), the outer walls of the front side and the rear side of the placing plate (3) are respectively provided with a sliding groove (11), the sliding grooves (11) are internally and slidably connected with sliding blocks (12), the outer walls of the two groups of sliding blocks (12) on the opposite sides are respectively hinged with a connecting rod (13), the top of the connecting rod, the outer wall of the screw rod (14) is sleeved with a movable plate (15), the front end and the rear end of the outer wall of the right side of the movable plate (15) are respectively provided with a mandril (16), the right end of the mandril (16) is fixedly connected with the outer wall of the left side of a sliding block (12), the outer wall of the left side of the drawing plate mounting rack (10) is provided with a rectangular array and is provided with four groups of grooves (17), the grooves (17) are internally and slidably connected with movable blocks (18), the opposite ends of two groups of the movable blocks (18) at the same upper side and the lower side are fixedly connected with a longitudinal coordinate positioning rod (19), the opposite ends of the two groups of the movable blocks (18) at the same front side and the rear side are fixedly connected with a transverse coordinate positioning rod (20), the longitudinal coordinate positioning rod (19) and the transverse coordinate positioning rod (20) are not on the same vertical surface, the outer, drawing board mounting bracket (10) top and bottom inner wall symmetry and being provided with the activity groove, and two sets of activity inslot sliding connection have installing frame (22), drawing board mounting bracket (10) rear side outer wall be provided with installing frame (22) matched with fluting, drawing board mounting bracket (10) top outer wall center activity grafting location inserted bar (24), just installing frame (22) top outer wall is provided with location inserted bar (24) matched with positioning groove (25), installing frame (22) inner wall middle part all is provided with the sliding tray all around, and four groups of activity inslots joints have drawing board (23).

2. The portable curve plotting device for advanced math teaching as set forth in claim 1, wherein: the drawing point component (21) comprises a sleeve (32) which is in sliding connection with the abscissa positioning rod (20), a T-shaped rod (26) is movably inserted at the top of the sleeve (32), a marking pen (27) is movably inserted at the outer wall of the bottom of the T-shaped rod (26), the bottom of the marking pen (27) extends to the outer wall of the bottom of the sleeve (32), a spring (28) is fixedly connected with the connecting part of the outer wall of the top of the sleeve (32) and the T-shaped rod (26), the spring (28) is sleeved on the outer wall of the bottom of the T-shaped rod (26), the diameter of the spring (28) is smaller than that of the top of the T-shaped rod (26), fixing blocks (29) are arranged on the left side and the right side of the outer wall of the bottom of the sleeve (32), compression springs (30) are uniformly arranged on the outer walls on the opposite sides of the two fixing blocks (29), and rubber blocks, and arc-shaped grooves matched with the marking pens (27) are formed in the opposite sides of the two groups of rubber blocks (31).

3. The portable curve plotting device for advanced math teaching as set forth in claim 1, wherein: accomodate the bottom symmetry of groove (5) left and right sides inner wall and be provided with the movable groove, and two sets of movable groove sliding connection have lifter plate (8), lifter plate (8) bottom outer wall evenly is provided with reset spring (9), reset spring (9) bottom and accomodate groove (5) bottom inner wall fixed connection, be provided with five groups to ten groups around reset spring (9), it is provided with five groups to ten groups altogether to accomodate groove (5) about.

4. The portable curve plotting device for advanced math teaching as set forth in claim 3, wherein: the outer wall of the top of the lifting plate (8) is provided with a placing groove, the longitudinal section of the placing groove is trapezoidal, and the width of the top section of the placing groove is larger than that of the bottom section of the placing groove.

5. The portable curve plotting device for advanced math teaching as set forth in claim 1, wherein: the outer wall of the top of the sealing cover (6) is uniformly provided with a rubber sealing block (7) matched with the containing groove (5), the longitudinal section of the rubber sealing block (7) is trapezoidal, and the width of the top section of the rubber sealing block is smaller than that of the bottom section of the rubber sealing block.