CN209634132U

CN209634132U - A kind of mathematical education multipurpose ruler

Info

Publication number: CN209634132U
Application number: CN201920301956.3U
Authority: CN
Inventors: 唐风军; 薛春玲; 张利利; 孙贵玲
Original assignee: Huanghe Science and Technology College
Current assignee: Huanghe Science and Technology College
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2019-11-15
Anticipated expiration: 2029-03-11

Abstract

The utility model relates to a kind of mathematical education multipurpose ruler, when drawing on blackboard, user can not read the existing ruler of effective solution close to ruler, it be easy to cause and misreads, it influences line segment and draws accuracy, need to use compasses when drawing circle, arc, be easy the problem of stabbing user；Its solve technical solution be include main scale, the rear end upper surface of main scale offers slideway along its length, slideway is sliding combined with sliding block, slip front is fixed with scale, sliding block is threadedly engaged positioning column along the vertical direction, turn-button, sliding block lower end fixed friction pad are fixed in positioning column upper end, and friction pad can contact main scale in lower end when positioning column rotates；The right end of main scale is rotatably assorted along the vertical direction is provided with Rotational Cylindrical, and the upper end of Rotational Cylindrical is fixed with the second turn-button, and main scale runs through along its length offers sliding slot, and the corresponding position of rule in sliding slot upper end, which runs through, offers cylindrical chalk card slot；The utility model clever structure, it is practical.

Description

A kind of mathematical education multipurpose ruler

Technical field

The utility model relates to mathematical education technical field, specifically a kind of mathematical education multipurpose ruler.

Background technique

Ruler is also known as ruler, ruler, is the tool for the section that draws lines (especially straight), measurement length.Usually there is quarter on ruler Degree is to measure length.Some rulers facilitate user to draw in centre there are special shape such as letter or circular hole.

There is following relatively conventional drawback in the rulers such as existing ruler tool:

1, it when teachers ' teaching, generally requires to draw corresponding geometric graph using ruler tool on blackboard and explains knowledge, due to Functions of ruler is simple, this generally requires teacher and takes a pile others educational aid, such as set square, compasses etc.；By institute's band Tool is more, and educational aid on hand is constantly replaced when use, not only troublesome, and often waste it is many valuable when Between.

2, need to use compasses when drawing circle, arc, existing compasses have the tip of positioning mostly, are easy to prick Hurt user, is harm for user, and compasses carry also inconvenience.

3, faculty on blackboard when drawing, when especially aloft drawing, since the scale of ruler is more intensive, when away from From farther out, user can not read close to ruler, and the eyes of user is caused farther out, to be easy at a distance from scale in this way It causes to misread, to influence the accuracy of line segment drafting.

4, user of service is when carrying out drafting coordinate system, due to being drawn by ruler, needs first to draw abscissa, then Ordinate is drawn, process is complex, and the coordinate system intersection drawn is easy to appear intersection.

It is that those skilled in that art's technology urgently to be resolved is asked since above-mentioned technological deficiency exists in the prior art Topic；Therefore, a kind of mathematical education multipurpose ruler is particularly important.

Utility model content

For above situation, for the defect for overcoming the prior art, the utility model provides a kind of mathematical education multipurpose ruler, has Effect solves existing ruler when drawing on blackboard, when apart from farther out, user can not read close to ruler, be easy It causes to misread, to influence the accuracy of line segment drafting, needs to use compasses when drawing circle, arc, be easy to stab user The problem of.

The utility model includes main scale, and main scale front end upper surface is provided with scale along its length, the main scale Rear end upper surface offers slideway along its length, and the slideway, which is slidably matched, is provided with sliding block, and the slip front is fixed with The scale of main scale front end is extended to, the sliding block is threadedly engaged along the vertical direction is provided with positioning column, the upper end of the positioning column It is fixed with the turn-button for being placed in upper end of slide block, the sliding block lower end is fixed with original state and the discontiguous friction pad of main scale, described Friction pad can contact main scale in lower end when positioning column rotates；

The right end of the main scale is rotatably assorted along the vertical direction is provided with Rotational Cylindrical, and the upper end of the Rotational Cylindrical is fixed with Two turn-buttons, the main scale runs through along its length offers sliding slot, and the corresponding position of rule in the sliding slot upper end is through offering Cylindrical chalk card slot.

Preferably, the chalk card slot is provided with chalk gripping mechanism, and the chalk gripping mechanism includes on chalk card slot The turbine for the setting that is rotatably assorted with scale is held, the centre of the turbine is through the second chalk card slot is offered, and the turbine is along circle Zhou Junbu is provided with quantity fastening corresponding with arc groove through several arc grooves are offered between the turbine and scale Plate, several plates that fasten are fixedly installed the sliding pin for corresponding and being placed in inside the arc groove, so that turbine rotation When, several fastening plates gather stirrup or separate release towards center.

Preferably, the side of the scale is fixed with worm screw box, and inner rotation cooperation is set the worm screw box along the longitudinal direction It is equipped with the worm screw engaged with turbine, the rear end of the worm screw is fixed with the third ratchet knob being partially disposed on the outside of worm screw box.

Preferably, the turn-button, the second turn-button and third ratchet knob circumferentially offer anti-skid chequer.

Preferably, the rear end of the main scale offers auxiliary scale slot along its length, and the auxiliary scale slot inner rotation cooperation is set It is equipped with auxiliary scale, the auxiliary scale can be blocked by auxiliary scale slot when turning to main scale in 90 degree and is not able to rotate.

Preferably, the rear end of the main scale is slidably matched along its length is provided with snap-gauge, the snap-gauge original state energy Enough being stuck on the outside of auxiliary scale slot prevents the auxiliary scale from producing, and the snap-gauge, which can slide, to be detached from the outside of auxiliary scale slot.

Preferably, it is arranged on the outside of the Rotational Cylindrical and is fixed with swivel becket, the main scale corresponding position offers rotation slot, institute It states swivel becket and rotation slot is rotatably assorted setting.

Preferably, the lower end of the Rotational Cylindrical is set as magnetite.

The utility model clever structure, practical, some functions with ruler, compasses, set square greatly increase The versatility of device, easy to use, easy to carry, cost is low；It, can be conveniently real when drawing circle, arc It is existing, and the use drawback of compasses is avoided, it will not be easy to damage user；

User can then realize the location of regulation scale, need to draw by the position of direct adjusting slider The length of line segment is mixed up in advance in scribing line money by scale, avoid the eyes of user at a distance from scale farther out when, hold It easily causes and misreads, thus the problem of influencing the accuracy of line segment drafting.

Detailed description of the invention

Fig. 1 is the utility model perspective view schematic diagram.

Fig. 2 is the utility model top view illustration.

Fig. 3 is the utility model use state perspective view schematic diagram.

Fig. 4 is the utility model use state top view illustration.

Fig. 5 is the utility model main scale perspective view schematic diagram.

Fig. 6 is explosion diagram at the utility model chalk gripping mechanism.

Fig. 7 is the utility model turbine, worm screw and fastening plate assembly relation perspective view schematic diagram.

Fig. 8 is enlarged drawing schematic diagram at A in the utility model Fig. 1.

Fig. 9 is the utility model section view schematic diagram.

Figure 10 is enlarged drawing schematic diagram at B in the utility model Fig. 1.

Appended drawing reference: 1, main scale；2, scale；3, slideway；4, sliding block；5, scale；6, positioning column；7, turn-button；8, friction pad； 9, Rotational Cylindrical；10, the second turn-button；11, sliding slot；12, chalk card slot；13, chalk gripping mechanism；14, turbine；15, the second chalk Card slot；16, arc groove；17, plate is fastened；18, sliding pin；19, worm screw box；20, worm screw；21, third ratchet knob；22, anti-skid chequer； 23, auxiliary scale slot；24, auxiliary scale；25, snap-gauge；26, swivel becket.

Specific embodiment

Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through figure In the detailed description of 10 pairs of embodiments, can clearly it present.The structure content being previously mentioned in following embodiment is with explanation Book attached drawing is reference.

Each exemplary embodiment of the utility model is described below with reference to accompanying drawings.

The utility model is a kind of mathematical education multipurpose ruler, including main scale 1, referring to Fig. 1, table on 1 front end of the main scale Face is provided with scale 2 along its length, and faculty on blackboard when drawing, when especially aloft drawing, due to the quarter of ruler Spend it is more intensive, when distance farther out, user can not read close to ruler, lead to the eyes and scale of user in this way Distance farther out, be easy to cause and misreads, to influence the accuracy of line segment drafting, especially draws the test patterns such as square When, it is extremely inconvenient, to solve this problem, Fig. 1, Fig. 2 and Fig. 8 are please referred to, the rear end upper surface of the main scale 1 is along its length Slideway 3 is offered, the slideway 3, which is slidably matched, is provided with sliding block 4, and the sliding block 4, which is fixedly arranged at the front end with, extends to 1 front end of main scale The front end of scale 5, scale 5 is beyond the effect of 1 front end of main scale, can block chalk and continue to slide, i.e., user of service makes When with the present apparatus, can direct adjusting slider 4 position, then realize the location of regulation scale 5, need to draw line segment Length is mixed up in scribing line money by scale 5, i.e. the length for the line segment that the distance of 0 graduation mark to 5 left end of scale as needs to draw；

Chalk pushes scale 5 when to prevent scribing line, causes the inaccuracy of scribing line, please refers to Fig. 1 and Fig. 8,4 edge of sliding block Vertical direction, which is threadedly engaged, is provided with positioning column 6, and the upper end of the positioning column 6 is fixed with the turn-button 7 for being placed in 4 upper end of sliding block, institute It states 4 lower end of sliding block and is fixed with original state and the discontiguous friction pad 8 of main scale 1, the friction pad 8 rotates at present in positioning column 6 End can contact main scale 1, need to draw the length of line segment after scribing line money is mixed up by scale 5 and to be wanted, by rotating turn-button 7, this When friction pad 8 can contact main scale 1 in lower end when positioning column 6 rotates, friction pad 8 contacted with main scale 1 after by the work of frictional force With the effect for carrying out locking fastening to scale 5；

Fig. 1, Fig. 2 and 8 are please referred to, the right end of the main scale 1 is rotatably assorted along the vertical direction is provided with Rotational Cylindrical 9, described The upper end of Rotational Cylindrical 9 is fixed with the second turn-button 10, and the main scale 1 runs through along its length offers sliding slot 11, the sliding slot 11 Corresponding 5 position of scale in upper end, which is run through, offers cylindrical chalk card slot 12, and chalk is stuck in chalk card vertically when using In slot 12, the lower end of chalk is concordant with the lower end of main scale 1 or exceeds slightly, and user's finger presses the second turn-button 10 at this time, after And main scale 1 is rotated, round or arc is drawn for the center of circle around Rotational Cylindrical 9 when main scale 1 is rotated, it is understood that there may be can not disposably be drawn It the case where round, needs to exchange right-hand man at this time and operates.

Embodiment two, on the basis of example 1, since chalk card slot 12 needs size just to adapt to the thickness of chalk, To enable the preferably clamping chalk of chalk card slot 12, Fig. 6, Fig. 7 and Fig. 8 are please referred to, the chalk card slot 12 is provided with powder Gripping mechanism 13, the chalk gripping mechanism 13 include that 12 upper end of chalk card slot and scale 5 are rotatably assorted the turbine 14 of setting, Through the second chalk card slot 15 is offered, the turbine 14, which is uniformly distributed along the circumference to run through, offers several for the centre of the turbine 14 Arc groove 16 is provided with quantity fastening plate 17 corresponding with arc groove 16, several fastenings between the turbine 14 and scale 5 Plate 17 is fixedly installed the sliding pin 18 for corresponding and being placed in inside the arc groove 16, several when so that turbine 14 rotating It fastens plate 17 and gathers stirrup or separate release towards center；

Chalk, when needing to draw round or arc, is placed in 12 He of chalk card slot when specifically used by the present embodiment In second chalk card slot 15, turbine 14 is rotated at this time, then several fastening plates 17 lean on towards the middle under the guidance of arc groove 16 Hold together, as shown in Figure 7, fastening plate 17 at this time can gradually be fixed tightly in chalk inside the second chalk card slot 15.

Embodiment three, on the basis of example 2, to use chalk gripping mechanism 13 preferably, referring to Fig. 7, The side of the scale 5 is fixed with worm screw box 19, and inner rotation is equipped with and turbine the worm screw box 19 along the longitudinal direction The worm screw 20 of 14 engagements, the rear end of the worm screw 20 are fixed with the third ratchet knob 21 for being partially disposed in 19 outside of worm screw box；

Chalk first when needing to draw round or arc, is placed in chalk card slot when specifically used by the present embodiment 12 and second in chalk card slot 15, stir third ratchet knob at this time, then worm screw 20 are driven to rotate, and worm screw 20 drives the whirlpool of engagement 14 rotation of wheel, several fastening plates 17 are drawn close towards the middle under the guidance of arc groove 16, as shown in Figure 7, fasten plate 17 at this time Gradually chalk can be fixed tightly in inside the second chalk card slot 15, chalk is realized and is fastened.

Example IV, to make the rotation of turn-button more convenient, please refers to Fig. 6 and Fig. 7 on the basis of embodiment three, The turn-button 7, the second turn-button 10 and third ratchet knob 21 circumferentially offer anti-skid chequer 22, and the presence of anti-skid chequer 22 to turn The rotation of knob is more convenient.

Embodiment five, on the basis of example 1, user of service when carrying out drafting coordinate system, due to by ruler into Row is drawn, and needs first to draw abscissa, then draw ordinate, and process is complex, and the coordinate system intersection drawn is easy Now intersect, to solve this problem, please refers to Fig. 1, Fig. 3 and Fig. 4, the rear end of the main scale 1 offers auxiliary scale along its length Slot 23,23 inner rotation of auxiliary scale slot are equipped with auxiliary scale 24, and the auxiliary scale 24 can when turning to main scale 1 in 90 degree It is blocked by auxiliary scale slot 23 and is not able to rotate, state is as shown in figure 3, user can very easily draw coordinate system, Huo Zhehui at this time Right angle processed etc., it is accurate to draw, graduation mark can be scribed in main scale 1 and the corresponding interior location of auxiliary scale 24.

Embodiment six, on the basis of embodiment five, to make device, auxiliary scale 24 will not be rotated arbitrarily when not in use, be asked Refering to fig. 10, the rear end of the main scale 1 is slidably matched along its length is provided with snap-gauge 25, and 25 original state of snap-gauge can It being stuck on the outside of auxiliary scale slot 23 and prevents the auxiliary scale 24 from producing, the snap-gauge 25, which can slide, is detached from 23 outside of auxiliary scale slot, when When the sliding of snap-gauge 25 is detached from 23 outside of auxiliary scale slot, auxiliary scale 24 can easily realize rotation.

Embodiment seven is arranged on the outside of the Rotational Cylindrical 9 on the basis of example 1 and is fixed with swivel becket 26, the master 1 corresponding position of ruler offers rotation slot 27, and the swivel becket 26 and rotation slot 27 are rotatably assorted setting.

Embodiment eight is preferably realized, institute when drawing round or arc to enable on the basis of example 1 The lower end for stating Rotational Cylindrical 9 is set as magnetite, i.e., when in use, magnetite is adsorbed on blackboard, user's finger pressing at this time the Two turn-buttons 10 then rotate main scale 1, draw round or arc around Rotational Cylindrical 9 when main scale 1 is rotated for the center of circle.

The utility model when specifically used, first user of service can directly adjusting slider 4 position, then realize adjust The location of feast-brand mark ruler 5, the length for needing to draw line segment are mixed up in scribing line money by scale 5, i.e. 0 graduation mark is left to scale 5 The length for the line segment that the distance at end as needs to draw；

Chalk pushes scale 5 when to prevent scribing line, causes the inaccuracy of scribing line, needs to draw the length of line segment in scribing line money It is mixed up by scale 5 after wanting, by rotating turn-button 7, friction pad 8 can contact main scale 1 in lower end when positioning column 6 rotates at this time, Friction pad 8 carries out the effect of locking fastening by the effect of frictional force to scale 5 after contacting with main scale 1；

When needing to draw round or arc, chalk is placed in chalk card slot 12 and the second chalk card slot 15, at this time Third ratchet knob is stirred, then worm screw 20 is driven to rotate, worm screw 20 drives the turbine 14 of engagement to rotate, and several fastening plates 17 are in arc It is drawn close towards the middle under the guidance of shape slot 16, as shown in Figure 7, fastening plate 17 at this time gradually can be fixed tightly in the second chalk for chalk Inside card slot 15, chalk is realized and is fastened；

The lower end of chalk is concordant with the lower end of main scale 1 or exceeds slightly, and user's finger presses the second turn-button 10 at this time, after And main scale 1 is rotated, round or arc is drawn for the center of circle around Rotational Cylindrical 9 when main scale 1 is rotated, it is understood that there may be can not disposably be drawn It the case where round, needs to exchange right-hand man at this time and operates；

23 inner rotation of auxiliary scale slot is equipped with auxiliary scale 24, and the auxiliary scale 24 can when turning to main scale 1 in 90 degree It is blocked by auxiliary scale slot 23 and is not able to rotate, state is as shown in figure 3, user can very easily draw coordinate system, Huo Zhehui at this time Right angle processed etc., it is accurate to draw, graduation mark can be scribed in main scale 1 and the corresponding interior location of auxiliary scale 24.

Claims

1. a kind of mathematical education multipurpose ruler, which is characterized in that including main scale (1), main scale (1) the front end upper surface is along length side To being provided with scale (2), the rear end upper surface of the main scale (1) offers slideway (3) along its length, and the slideway (3) is sliding Dynamic to be equipped with sliding block (4), the sliding block (4) is fixedly arranged at the front end with the scale (5) for extending to main scale (1) front end, the sliding block (4) it is threadedly engaged and is provided with positioning column (6) along the vertical direction, the upper end of the positioning column (6), which is fixed with, is placed in sliding block (4) upper end Turn-button (7), sliding block (4) lower end is fixed with original state and main scale (1) discontiguous friction pad (8), the friction pad (8) when positioning column (6) rotate, lower end can contact main scale (1)；

The right end of the main scale (1) is rotatably assorted along the vertical direction to be provided with Rotational Cylindrical (9), the lower end surface of the Rotational Cylindrical (9) Concordant with the lower end surface of main scale (1), the upper end of the Rotational Cylindrical (9) is fixed with the second turn-button (10), and the main scale (1) is along length Through offering sliding slot (11), corresponding scale (5) position in sliding slot (11) upper end, which is run through, offers cylindrical powder in direction Card slot (12).

2. a kind of mathematical education multipurpose ruler according to claim 1, which is characterized in that the chalk card slot (12) is provided with Chalk gripping mechanism (13), the chalk gripping mechanism (13) include that chalk card slot (12) upper end is rotatably assorted with scale (5) and sets The turbine (14) set, the centre of the turbine (14) is through the second chalk card slot (15) is offered, and the turbine (14) is circumferentially It is evenly distributed with through several arc grooves (16) are offered, is provided with quantity and arc groove between the turbine (14) and scale (5) (16) corresponding fastening plate (17), several fastening plates (17) are fixedly installed one-to-one correspondence and are placed in the arc groove (16) Internal sliding pin (18), when so that turbine (14) rotating, several fastenings plates (17) gather stirrup or far towards center From release.

3. a kind of mathematical education multipurpose ruler according to claim 2, which is characterized in that the side of the scale (5) is fixed Have worm screw box (19), inner rotation is equipped with the worm screw engaged with turbine (14) to the worm screw box (19) along the longitudinal direction (20), the rear end of the worm screw (20) is fixed with the third ratchet knob (21) being partially disposed on the outside of worm screw box (19).

4. a kind of mathematical education multipurpose ruler according to claim 3, which is characterized in that the turn-button (7), the second turn-button (10) and third ratchet knob (21) circumferentially offers anti-skid chequer (22).

5. a kind of mathematical education multipurpose ruler according to claim 1, which is characterized in that the rear end of the main scale (1) is along length Degree direction offers auxiliary scale slot (23), and auxiliary scale slot (23) inner rotation is equipped with auxiliary scale (24), the auxiliary scale (24) It can be blocked by auxiliary scale slot (23) when turning to main scale (1) in 90 degree and not be able to rotate.

6. a kind of mathematical education multipurpose ruler according to claim 5, which is characterized in that the rear end of the main scale (1) is along length Degree direction, which is slidably matched, to be provided with snap-gauge (25), and snap-gauge (25) original state, which can be stuck on the outside of auxiliary scale slot (23), makes institute Stating auxiliary scale (24) cannot produce, and the snap-gauge (25), which can be slided, to be detached from the outside of auxiliary scale slot (23).

7. a kind of mathematical education multipurpose ruler according to claim 1, which is characterized in that be arranged on the outside of the Rotational Cylindrical (9) It is fixed with swivel becket (26), main scale (1) corresponding position offers rotation slot (27), the swivel becket (26) and rotation slot (27) be rotatably assorted setting.

8. a kind of mathematical education multipurpose ruler according to claim 1, which is characterized in that the lower end of the Rotational Cylindrical (9) is set It is set to magnetite.