CN211994877U

CN211994877U - Higher mathematics drawing board of imparting knowledge to students

Info

Publication number: CN211994877U
Application number: CN202020595184.1U
Authority: CN
Inventors: 黄兵昌; 许书娟
Original assignee: Guangxi City Vocational University
Current assignee: Guangxi City Vocational University
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-11-24
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a higher mathematics teaching drawing board, which relates to the technical field of teaching auxiliary tools and comprises a base, wherein a lifting device is fixedly arranged at the upper end of the base, a mainboard is fixedly arranged at the upper end of the lifting device, bearing seats are fixedly arranged at both ends of one side of the mainboard, a rotating rod is rotatably arranged between the two bearing seats, the rotating rod is fixedly provided with a rotating drum, the rotating drum is rolled with a piece of board cloth, a transverse chute is arranged inside each of the upper end and the lower end of the mainboard, a transverse sliding rod is inserted in the transverse chute, a clamping rod is fixed at one end of the transverse sliding rod away from the mainboard, a longitudinal chute is arranged at the back of the mainboard, a longitudinal sliding rod is inserted in the longitudinal chute, a blind hole rod is arranged at the top end of the longitudinal sliding rod, and a transverse rod is inserted in the blind hole rod, the utility model achieves, and the patterns can be properly reserved, which is helpful for students to further understand the effect of digesting the classroom contents after class.

Description

Higher mathematics drawing board of imparting knowledge to students

Technical Field

The utility model relates to a teaching assistance apparatus technical field especially relates to an advanced mathematics drawing board that imparts knowledge to students.

Background

Mathematics is a subject of researching concepts such as quantity, structure, change, space, information and the like, belongs to one of formal science from a certain angle, is an essential basic tool for learning and researching modern science and technology, and the high number of mathematics is relatively difficult subject for most mathematics students, and compared with abstract, hard to imagine and hard to understand intuitively, teachers often need to draw some figures to help students to better understand and master related knowledge points.

However, the existing drawing board has a limited area, and often needs to be wiped back and forth for multiple times, so that time is delayed, one graph is often drawn, and the graph needs to be wiped off, a next image is drawn, so that the graphs are inconvenient to compare, some students may not completely understand the graphs in class, and the students need to perform digestion understanding with the graphs drawn in the class after class, which cannot be well realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is limited to overcome current advanced mathematics teaching drawing board area, often need make a round trip to clean many times, delays time, and often a figure is drawn and is accomplished, just must wipe, draws next image, contrasts between the inconvenient figure, and some students probably do not understand completely in class, and the figure that still need refer to the classroom drawing after class is digested and is understood, the shortcoming that can not fine realization, the to-be-solved technical problem of the utility model is to provide an area of face can adjust in a flexible way, need not to make a round trip to clean the face, carries out contrastive analysis between the figure of conveniently drawing, and can suitably remain the figure, helps the student to further understand the advanced mathematics teaching drawing board of digesting classroom content behind the class.

In order to solve the technical problem, the utility model provides a drawing board for advanced math teaching, which comprises a base, wherein a lifting device is fixedly arranged at the upper end of the base, a main board is fixedly arranged at the upper end of the lifting device, bearing seats are fixedly arranged at both ends of one side of the main board, a rotating rod is rotatably arranged between the two bearing seats through a bearing, a rotating drum is fixed on the rotating rod, a piece of plate cloth is coiled on the rotating drum, and one end of the plate cloth is detachably hung on the rotating drum;

transverse sliding grooves are formed in the upper end and the lower end of the main board, transverse sliding rods are inserted into the transverse sliding grooves, clamping rods are fixed at one ends, far away from the main board, of the two transverse sliding rods, and the other ends of the plate cloth are detachably connected to the clamping rods in a hanging mode;

both ends are provided with vertical spout about the mainboard back, vertical slide bar has been inserted to vertical spout, vertical slide bar top fixed mounting has the blind hole pole, the blind hole pole interpolation has the horizontal pole.

Preferably, the lifting device comprises a bottom box, the bottom box is fixedly arranged on the base, and a screw rod is rotatably arranged between the inner top surface and the inner bottom surface of the bottom box;

a driven bevel gear is fixedly mounted at the lower end of the screw rod, the driven bevel gear is meshed with a driving bevel gear, a connecting rod is fixedly mounted at one end of the driving bevel gear, which is far away from the driven bevel gear, and a rocker is fixed on one side surface of the connecting rod, which penetrates out of the bottom box, and one end of the connecting rod, which is far away from the driving bevel gear;

the screw rod spiro union has the slider, the both ends slidable mounting of slider in two inside walls of under casing, slider top fixed mounting has the bracing piece, the bracing piece is kept away from the one end of slider passes under casing top fixed mounting be in the bottom of mainboard.

Preferably, the side of the slider is provided with a jack I, the front side of the bottom case is provided with a plurality of jacks II corresponding to the screw holes I, and the jacks I and the jacks II are inserted with inserted rods.

Preferably, the jack I and the jack II are both screw holes, and the inserted bar is a bolt I.

Preferably, a plurality of fixing rods I are uniformly arranged in the vertical direction of the surface of the rotary drum, a plurality of air holes are uniformly arranged in the vertical direction of one end of the plate cloth, and the air holes in the plate cloth are correspondingly inserted into the fixing rods I one by one.

Preferably, a plurality of fixing rods II are uniformly arranged in the vertical direction of the surfaces of the clamping rods, a plurality of air holes are uniformly arranged in the vertical direction of one end, far away from the rotary drum, of the plate cloth, and the air holes in the plate cloth are correspondingly inserted into the fixing rods II one by one.

Preferably, screw holes I which are matched with each other are formed in the upper end of the longitudinal sliding groove and one end, far away from the blind hole rod, of the longitudinal sliding rod, and a bolt II is inserted into the screw hole I.

Preferably, the one end that the blind hole pole was kept away from to the horizontal pole is provided with the handle, the blind hole pole is close to the top of handle one end is provided with screw III, bolt III has been inserted to screw III, the bottom that the mainboard was kept away from bearing frame one end is provided with screw II, bolt IV has been inserted to screw II.

Preferably, the bottom of the main board is fixed with a storage box.

Preferably, the mainboard surface upper end transversely is provided with the scale, the mainboard is close to one side of bearing frame is provided with the baffle, the baffle with be provided with the perforation between the mainboard, the baffle vertically is provided with the scale.

Advantageous effects

The utility model discloses reached and made the face area of advanced mathematics teaching drawing board can adjust in a flexible way, need not to make a round trip to clean the face, carries out contrastive analysis between the figure of conveniently drawing, and can suitably remain the figure, help the student to further understand the effect of digestion classroom content after class.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a front view structure of a drawing board for middle and high mathematics teaching according to the present invention;

fig. 2 is a rear view of the main board of the drawing board for middle and high mathematics teaching according to the present invention;

FIG. 3 is a schematic view of the installation of the drum of the drawing board for middle and high mathematics teaching according to the present invention;

fig. 4 is a right schematic view of a baffle plate of the drawing board for middle and high mathematics teaching according to the present invention;

fig. 5 is the utility model discloses the structural schematic diagram of the sheet cloth of high mathematics teaching drawing board of well height.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Example 1

1-5, the drawing board for advanced mathematics teaching comprises a base 100, wherein a lifting device is fixedly installed at the upper end of the base 100, a main board 101 is fixedly installed at the upper end of the lifting device, bearing seats 102 are fixedly installed at both ends of one side of the main board 101, a rotating rod 125 is rotatably installed between the two bearing seats 102 through a bearing, a rotating cylinder 103 is fixed on the rotating rod 125, a piece of sheet cloth 104 is rolled up on the rotating cylinder 103, and one end of the sheet cloth 104 is detachably hung on the rotating cylinder 103;

a transverse sliding groove 105 is formed in the upper end and the lower end of the main board 101, a transverse sliding rod 106 is inserted into the transverse sliding groove 105, a clamping rod 107 is fixed at one end of each of the two transverse sliding rods 106 far away from the main board 101, and the other end of the sheet cloth 104 is detachably hung on the clamping rod 107;

the left end and the right end of the back of the main board 101 are provided with longitudinal sliding grooves 123, longitudinal sliding rods 108 are inserted into the longitudinal sliding grooves 123, blind hole rods 109 are fixedly installed at the top ends of the longitudinal sliding rods 108, and cross rods 110 are inserted into the blind hole rods 109.

The lifting device comprises a bottom box 115, the bottom box 115 is fixedly arranged on the base 100, and a screw 117 is rotatably arranged between the inner top surface and the inner bottom surface of the bottom box 115;

a driven bevel gear 120 is fixedly mounted at the lower end of the screw 117, a driving bevel gear 121 is engaged with the driven bevel gear 120, a connecting rod 131 is fixedly mounted at one end of the driving bevel gear 121 far away from the driven bevel gear 120, and a rocker 122 is fixedly mounted at one side surface of the connecting rod 131 far away from the driving bevel gear 121, which penetrates out of the bottom box 115;

the screw 117 is screwed with a sliding block 118, two ends of the sliding block 118 are slidably mounted on two inner side walls of the bottom case 115, a supporting rod 116 is fixedly mounted at the top end of the sliding block 118, and one end of the supporting rod 116, which is far away from the sliding block 118, penetrates through the top of the bottom case 115 and is fixedly mounted at the bottom of the main board 101.

The side of the slide block 118 is provided with a jack I, the front side of the bottom case 115 is provided with a plurality of jacks II119 corresponding to the screw holes I, and the jacks I and the jacks II119 are inserted with inserted rods.

Jack I with jack II119 is the screw, the inserted bar is bolt I.

A plurality of fixing rods I126 are uniformly arranged on the surface of the drum 103 in the vertical direction, a plurality of air holes 130 are uniformly arranged at one end of the plate cloth 104 in the vertical direction, and the air holes 130 on the plate cloth 104 are correspondingly inserted into the fixing rods I126 in a one-to-one manner.

A plurality of fixing rods II 127 are uniformly arranged on the surface of the clamping rod 107 in the vertical direction, a plurality of air holes 130 are uniformly arranged on one end of the plate cloth 104 far away from the rotary drum 103 in the vertical direction, and the air holes 130 on the plate cloth 104 are correspondingly inserted into the fixing rods II 127 one by one.

The upper end of the longitudinal sliding groove 123 and one end of the longitudinal sliding rod 108 far away from the blind hole rod 109 are provided with screw holes I124 which are matched with each other, and bolts II are inserted into the screw holes I124.

The end, far away from the blind hole rod 109, of the cross rod 110 is provided with a handle 113, the top, near the end of the handle 113, of the blind hole rod 109 is provided with a screw hole III 112, a bolt III is inserted into the screw hole III 112, the bottom, far away from the end of the bearing seat 102, of the main plate 101 is provided with a screw hole II111, and a bolt IV is inserted into the screw hole II.

A storage box 114 is fixed to the bottom of the main plate 101.

The upper end of the surface of the main plate 101 is transversely provided with scales, one side of the main plate 101, which is close to the bearing seat 102, is provided with a baffle 128, a through hole 129 is formed between the baffle 128 and the main plate 101, and the baffle 128 is longitudinally provided with scales.

The working principle is as follows: in the earlier stage, after one end of the sheet cloth 104 is clamped and fixed by the fixing rod I126 and the air hole 130, the sheet cloth 104 is rolled on the rotary drum 103, when a teacher needs to start drawing on the device, the other end of the sheet cloth 104 is pulled to pass through the through hole 129, so that a part of the sheet cloth 103 is flatly laid on the main board 101, the other end of the sheet cloth 103 is clamped and fixed on the clamping rod 107 by the fixing rod II 127 and the air hole 130, during drawing, drawing can be carried out by referring to the scales on the main board 101 and the baffle 128, when the used area of the sheet cloth 104 of the main board 101 is used up, the transverse sliding rod 106 can be pulled out from the transverse sliding groove 105 for a certain length, then the bolt IV is abutted against the transverse sliding rod 106 through the screw hole II111 to prevent the sliding of the transverse sliding rod 106 from influencing drawing on the sheet cloth 104, when the whole sheet cloth is used up, the content on the transverse sliding rod 106 can be not urgently wiped off, the lower end of a longitudinal sliding rod 108 can be fixed at the upper end of the back of the main board 101 by using a bolt II through a screw hole I124, a handle 113 is pulled, a cross rod 110 is pulled out from a blind hole rod 109, the end of the cross rod is supported and fixed by using a bolt III through a screw hole III 112, and a piece of sheet cloth 104 painted with a picture can be fixed on the blind hole rod 109 and the cross rod 110 by using a clamp, so that on one hand, the student can further refer to learning after class, on the other hand, a new picture can be drawn or explained on the other sheet of sheet cloth 104 as necessary, and comparative analysis is facilitated;

further, the device can be lifted properly according to actual needs through a lifting device, specifically, a rocker 122 is shaken, a drive bevel gear 121 drives a driven bevel gear 120 to rotate, so as to drive a screw 117 to rotate, a slider 118 can move up and down under the drive of the screw 117, a support rod 116 can also move up and down under the action of the slider 118, so as to drive the main board 101 to move up and down, and when the device is moved to a proper position, a bolt I is used for fixing the slider through a jack I and a jack II119, so that the main board 101 is stabilized at a fixed height;

further, the storage box 114 can be used for placing related articles such as clips, and the bottom end of the base 100 can be provided with universal wheels, so that the whole device can be moved conveniently.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The drawing board for advanced mathematics teaching comprises a base (100), wherein a lifting device is fixedly mounted at the upper end of the base (100), a main board (101) is fixedly mounted at the upper end of the lifting device, and is characterized in that bearing seats (102) are fixedly mounted at two ends of one side of the main board (101), a rotating rod (125) is rotatably mounted between the two bearing seats (102) through a bearing, a rotating cylinder (103) is fixed on the rotating rod (125), a piece of sheet cloth (104) is coiled on the rotating cylinder (103), and one end of the sheet cloth (104) is detachably hung on the rotating cylinder (103);

transverse sliding grooves (105) are formed in the upper end and the lower end of the main board (101), transverse sliding rods (106) are inserted into the transverse sliding grooves (105), clamping rods (107) are fixed to one ends, far away from the main board (101), of the two transverse sliding rods (106), and the other end of the plate cloth (104) is detachably hung on the clamping rods (107);

both ends are provided with vertical spout (123) about mainboard (101) back, vertical spout (123) interpolation has vertical slide bar (108), vertical slide bar (108) top fixed mounting has blind hole pole (109), blind hole pole (109) interpolation has horizontal pole (110).

2. The advanced mathematics teaching drawing board as claimed in claim 1, wherein said lifting means comprises a bottom case (115), said bottom case (115) is fixedly mounted on said base (100), a screw (117) is rotatably mounted between the inner top surface and the inner bottom surface of said bottom case (115);

a driven bevel gear (120) is fixedly installed at the lower end of the screw (117), a driving bevel gear (121) is meshed with the driven bevel gear (120), a connecting rod (131) is fixedly installed at one end, far away from the driven bevel gear (120), of the driving bevel gear (121), and a rocker (122) is fixed on one side face, far away from the driving bevel gear (121), of the connecting rod (131) and penetrates out of the bottom box (115);

screw rod (117) spiro union has slider (118), the both ends slidable mounting of slider (118) in two inside walls of under casing (115), slider (118) top fixed mounting has bracing piece (116), bracing piece (116) are kept away from the one end of slider (118) is passed under casing (115) top fixed mounting is in the bottom of mainboard (101).

3. The advanced mathematics teaching drawing board as claimed in claim 2, wherein said slide block (118) is provided with a jack I at its side, said bottom case (115) is provided with a plurality of jacks II (119) at its front side corresponding to said jack I, and said jacks I and II (119) are inserted with insert rods.

4. A drawing board for advanced mathematics teaching as claimed in claim 3, wherein said insertion hole I and said insertion hole II (119) are both screw holes, and said insertion rod is a bolt I.

5. The advanced mathematics teaching drawing board as claimed in claim 1, wherein a plurality of fixing rods I (126) are uniformly arranged on the surface of said rotary drum (103) in the vertical direction, a plurality of air holes (130) are uniformly arranged on one end of said board cloth (104) in the vertical direction, and said air holes (130) on said board cloth (104) are plugged on said fixing rods I (126) in a one-to-one correspondence.

6. The advanced mathematics teaching drawing board as claimed in claim 5, wherein said fastening rods II (127) are uniformly arranged on the surface of said fastening rod (107) in the vertical direction, said air holes (130) are uniformly arranged on the end of said board cloth (104) far from said rotary drum (103) in the vertical direction, and said air holes (130) on said board cloth (104) are plugged on said fastening rods II (127) in a one-to-one correspondence.

7. An advanced mathematics teaching drawing board as claimed in claim 1, characterized in that the upper end of said longitudinal sliding groove (123) and the end of said longitudinal sliding bar (108) far from said blind hole bar (109) are provided with screw holes I (124) matching each other, said screw holes I (124) are inserted with bolts II.

8. The advanced mathematics teaching drawing board as claimed in claim 1, wherein the end of said cross bar (110) far away from said blind hole bar (109) is provided with a handle (113), the top of said blind hole bar (109) near the end of said handle (113) is provided with a screw hole III (112), said screw hole III (112) is inserted with a bolt III, the bottom of said main board (101) far away from said bearing seat (102) is provided with a screw hole II (111), said screw hole II is inserted with a bolt IV.

9. An advanced mathematics teaching drawing board as claimed in claim 1, characterized in that a storage box (114) is fixed to the bottom of said main board (101).

10. An advanced mathematics teaching drawing board as claimed in claim 1, characterized in that the upper end of the surface of said main board (101) is transversely provided with a scale, the side of said main board (101) close to said bearing seat (102) is provided with a baffle (128), a through hole (129) is provided between said baffle (128) and said main board (101), and said baffle (128) is longitudinally provided with a scale.