CN212098169U

CN212098169U - Novel teaching aid chi is used in primary school's teaching that can accomodate

Info

Publication number: CN212098169U
Application number: CN202020860992.6U
Authority: CN
Inventors: 陈菊萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-12-08
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a novel teaching aid chi is used in primary school's teaching that can accomodate, its structure includes blade, length line, angle line, handle, couple, complementary unit and fixed point mechanism, the utility model discloses a novel teaching aid chi is used in primary school's teaching that can accomodate has set up complementary unit on the blade right side, and pulling teaching aid stick takes out it from the standing groove, and the teaching aid is convenient for teaching and is guided the use, has increased the equipment practicality; the left side of the ruler body is provided with the fixed point mechanism, a switch button is pressed down to enable a motor to drive a first bevel gear and a second bevel gear to rotate in a matched mode through a rotating shaft and an outer gear ring, the second bevel gear drives a screw rod to rotate in a matched mode through a connecting shaft and a screw rod groove, a positioning block is enabled to move downwards and abut against the surface of a blackboard, after the pressing block is pressed downwards, a chalk head abuts against a length line to be drawn corresponding to the radius length of a circle to be drawn, the ruler body is rotated by taking the positioning block as a middle point to complete a circular drawing process, and circles or circular arcs with different diameters can.

Description

Novel teaching aid chi is used in primary school's teaching that can accomodate

Technical Field

The utility model relates to a novel teaching aid chi is used in primary school's teaching that can accomodate belongs to the teaching aid field.

Background

The teaching is a unique talent training activity of human beings, which is formed by the teaching of teachers and the learning of students, through the activity, the teachers purposefully, plan and organically guide the students to study and master the cultural scientific knowledge and skill, and promote the quality improvement of the students, so that the students become people required by the society.

The novel teaching aid chi is used in primary school's teaching that prior art can accomodate because the structure is comparatively single, is difficult to draw the circle or the circular arc of different diameters as required fast, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel teaching aid chi is used in primary school's teaching that can accomodate to solve the novel teaching aid chi is used in primary school's teaching that can accomodate of prior art, because the structure is comparatively single, be difficult to draw out the circle or the circular arc of different diameters as required fast, the relatively poor problem of practicality.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a novel teaching aid ruler capable of being stored for primary school teaching comprises a ruler body, a length line, an angle line, a handle, a hook, an auxiliary mechanism and a fixed point mechanism, wherein the length line is carved at the front end of the top surface of the ruler body, the angle line is carved at the middle part of the rear end of the top surface of the ruler body, the handle is fixed at the left side of the rear end of the top surface of the ruler body, the hook is fixed at the middle part of the left side of the ruler body, the auxiliary mechanism is arranged at the right side of the ruler body, the fixed point mechanism is arranged at the left side of the ruler body and consists of a placing groove, a limiting block and a teaching aid stick, the placing groove is transversely formed at the rear end of the right side of the ruler body, the limiting block is fixed at the upper end and the lower end of the right side in the placing groove, the teaching aid stick is embedded in the placing groove, the fixed point mechanism consists of a pressing block, a rotary bead, a, and the locating piece has been inlayed to the press block bottom, the screw rod groove is vertically seted up in locating piece top surface middle part, drive element sets up in press block top middle part, shift knob installs in blade left side rear end, the battery sets up in press block top right side, the mouth that charges is seted up in blade front end left side.

Further, drive element comprises fixing base, motor, pivot, outer ring gear, first bevel gear, second bevel gear and screw rod, fixing base top surface and the interior top middle part fixed connection of pressing the piece, and the fixing base right side is provided with the motor, the pivot right side transversely runs through fixing base middle part and the coaxial rotation of motor left side output shaft, and laminates with the outer ring gear of outer wall left side and outer tooth ring, first bevel gear sets up left side in the fixing base, and the bottom is provided with second bevel gear in the fixing base, the screw rod passes through the connecting axle and is connected with second bevel gear rotation, motor, shift knob and battery all are connected with the mouth of charging electricity, motor and shift knob all are connected with the battery electricity, the motor is connected with the shift knob electricity.

Further, the first bevel gear and the second bevel gear are identical in structure and size, and an included angle formed between the first bevel gear and the second bevel gear is 90 degrees.

Further, the inner wall of the first bevel gear is meshed with the outer gear ring, and the first bevel gear is meshed with the second bevel gear.

Furthermore, a dust cover is arranged at the charging port, and a pull handle is fixed outside the dust cover.

Furthermore, the top of the inner wall of the screw groove is surrounded by a limiting ring, and the bottom of the screw is fixed with a limiting sheet.

Furthermore, the bottom of the positioning block is attached with an anti-slip rubber layer, and the bottom surface of the anti-slip rubber layer is provided with anti-slip lines.

Further, the teaching aid stick surface is dull polish state, and the teaching aid stick right side is tied there is the stay cord.

Furthermore, the limiting block is made of rubber.

Further, the rotating shaft is made of tungsten steel.

The auxiliary mechanism is arranged on the right side of the ruler body, and the fixed-point mechanism is arranged on the left side of the ruler body

The utility model discloses a novel teaching aid chi is used in primary school's teaching that can accomodate, through having set up complementary unit on the ruler body right side, pulling the teaching aid stick and taking out it from the standing groove, the teaching guidance of being convenient for is used, has increased the equipment practicality; the fixed point mechanism is arranged on the left side of the ruler body, the motor drives the first bevel gear and the second bevel gear to rotate in a matched mode through the rotating shaft and the outer gear ring by pressing the switch button, the second bevel gear drives the screw rod to rotate in a matched mode through the connecting shaft and the screw rod groove, the positioning block moves downwards and is supported on the surface of the blackboard, after the pressing block is pressed downwards, the chalk head is supported on a length line corresponding to the radius length of a circle to be drawn, the ruler body is rotated by taking the positioning block as a middle point to complete a circular drawing process, and circles or circular arcs with different diameters can be drawn quickly as required.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

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

FIG. 2 is a schematic structural view of a main sectional view of the present invention;

FIG. 3 is a schematic structural view of a main sectional view of the auxiliary mechanism of the present invention;

FIG. 4 is a schematic structural view of a front section of the pointing mechanism of the present invention;

fig. 5 is a schematic structural diagram of a front sectional part of a driving element according to the present invention.

In the figure: the ruler comprises a ruler body-1, a length line-2, an angle line-3, a handle-4, a hook-5, an auxiliary mechanism-6, a fixed point mechanism-7, a placing groove-61, a limiting block-62, a teaching aid rod-63, a pressing block-71, a rotating ball-72, a positioning block-73, a screw groove-74, a driving element-75, a switch button-76, a storage battery-77, a charging port-78, a fixed seat-751, a motor-752, a rotating shaft-753, an outer toothed ring-754, a first bevel gear-755, a second bevel gear-756 and a screw-757.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a novel teaching ruler for primary school teaching, which can be stored: the ruler comprises a ruler body 1, a length line 2, an angle line 3, a handle 4, a hook 5, an auxiliary mechanism 6 and a fixed point mechanism 7, wherein the length line 2 is carved at the front end of the top surface of the ruler body 1, the angle line 3 is carved at the middle part of the rear end of the top surface of the ruler body 1, the length and the angle are convenient to measure, the handle 4 is fixed on the left side of the rear end of the top surface of the ruler body 1, the hook 5 is fixed on the middle part of the left side of the ruler body 1, equipment is convenient to store, the auxiliary mechanism 6 is arranged on the right side of the ruler body 1, the fixed point mechanism 7 is arranged on the left side of the ruler body 1, the auxiliary mechanism 6 comprises a placement groove 61, a limiting block 62 and a teaching aid rod 63, the placement groove 61 is transversely formed in the rear end of the right side of the ruler body 1, the limiting blocks 62 are fixed at the upper end and the lower end of the right side in the placement groove 61, the teaching aid rod, The switch button 76, the battery 77 and the mouth 78 that charges constitute, press block 71 through the outer wall around some commentaries on classics pearl 72 inlay in the ruler body 1 left side, and press block 71 bottom inlay have the locating piece 73, screw rod groove 74 vertically sets up in the middle part of locating piece 73 top surface, drive element 75 sets up in the middle part of press block 71 top, switch button 76 installs in ruler body 1 left side rear end, battery 77 sets up in the interior top right side of press block 71, the mouth 78 that charges sets up in ruler body 1 front end left side.

The driving element 75 is composed of a fixed seat 751, a motor 752, a rotating shaft 753, an outer toothed ring 754, a first bevel gear 755, a second bevel gear 756 and a screw 757, the top surface of the fixed seat 751 is fixedly connected with the middle of the inner top end of the pressing block 71, the right side of the fixed seat 751 is provided with the motor 752, the right side of the rotating shaft 753 transversely penetrates through the middle of the fixed seat 751 to coaxially rotate with an output shaft on the left side of the motor 752, the left side of the outer wall of the rotating shaft 753 is attached to the inner wall of the outer toothed ring 754, the first bevel gear 755 is arranged on the inner left side of the fixed seat 751, the inner bottom of the fixed seat 751 is provided with the second bevel gear 756, the screw 757 is rotatably connected with the second bevel gear 756 through a connecting shaft, the motor 752, the switch button 76 and the.

The first bevel gear 755 and the second bevel gear 756 have the same structure and size, and an included angle formed between the first bevel gear 755 and the second bevel gear 756 is 90 degrees, so that the reversing rotation is facilitated.

Wherein, the inner wall of the first bevel gear 755 is engaged with the outer gear ring 754, and the first bevel gear 755 is engaged with the second bevel gear 756, so as to ensure the normal operation of the driving element 75.

Wherein, the mouth 78 department that charges is provided with the dust cover, and the dust cover external fixation has the pull handle, avoids charging mouth 78 to damage because of the chalk dust gets into.

Wherein, the screw rod groove 74 inner wall top is surrounded by the spacing ring, and screw rod 757 bottom is fixed with the spacing piece, avoids screw rod 757 to drop from screw rod groove 74.

The bottom of the positioning block 73 is attached with an anti-slip rubber layer, and anti-slip lines are arranged on the bottom surface of the anti-slip rubber layer, so that the stability of the positioning block 73 is ensured.

Wherein, teaching aid stick 63 surface is dull polish state, and teaching aid stick 63 right side system has the stay cord, convenient to use teaching aid stick 63.

The limiting block 62 is made of rubber.

The rotating shaft 753 is made of tungsten steel.

The rotating shaft 753 is made of tungsten steel, which is a sintered composite material containing at least one metal carbide, and has a series of excellent properties such as high hardness, wear resistance, strength, toughness, heat resistance, corrosion resistance and the like, particularly high hardness and wear resistance, and the rotating shaft 753 is basically unchanged even at a temperature of 500 ℃ and still has high hardness at a temperature of 1000 ℃.

When a user wants to use the device, the user holds the handle 4 to attach the front end of the ruler body 1 to a position to be drawn on a blackboard, a chalk is used for drawing a required length line segment with the length line 2 as an auxiliary, a required angle can be measured and drawn through the angle line 3, when the user needs to draw a circle, the user presses the switch button 76 to enable the motor 752 on the right side of the fixed seat 751 to operate, the motor 752 drives the outer toothed ring 754 to enable the first bevel gear 755 and the second bevel gear 756 to rotate in a matched mode through the rotating shaft 753, the second bevel gear 756 drives the screw 757 to rotate in a matched mode through the connecting shaft and the screw groove 74, the positioning block 73 is enabled to move downwards at the bottom of the pressing block 71, so that the bottom of the positioning block 73 is abutted against the surface of the blackboard, the pressing block 71 is pressed downwards and the handle 4 is released, a chalk head is abutted against the position of the length line 2 corresponding to the radius length, the novel teaching ruler solves the problem that circles or circular arcs with different diameters are difficult to draw quickly due to the fact that the structure is single in the novel teaching ruler for primary school teaching in the prior art, after drawing is finished, a switch button 76 is pressed down to enable a motor 752 to drive an outer toothed ring 754 through a rotating shaft 753 to enable a first bevel gear 755 and a second bevel gear 756 to rotate in a matched mode, the second bevel gear 756 drives a screw 757 to rotate in a matched mode with a screw groove 74 through a connecting shaft, a positioning block 73 moves upwards and retracts into a pressing block 71, a handle 4 is held to hang equipment at a hook through a hook 5 to complete storage of the equipment, a teaching aid rod 63 is pulled to be taken out from a placing groove 61 with an inner wall attached to a limiting block 62, teaching guidance and use are facilitated, the novel teaching ruler for primary school teaching in the prior art is solved, the problem that the structure is single and relatively poor in practicability is solved, and when the electric quantity of, a charger may be connected to the charging port 78 to replenish the battery 77.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel teaching aid ruler capable of being stored for primary school teaching comprises a ruler body (1), wherein a length line (2) is carved at the front end of the top surface of the ruler body (1), an angle line (3) is carved in the middle of the rear end of the top surface of the ruler body (1), a handle (4) is fixed on the left side of the rear end of the top surface of the ruler body (1), and a hook (5) is fixed in the middle of the left side of the ruler body (1);

the method is characterized in that: the ruler with the fixed point mechanism is characterized by further comprising an auxiliary mechanism (6) and a fixed point mechanism (7), wherein the auxiliary mechanism (6) is arranged on the right side of the ruler body (1), the fixed point mechanism (7) is arranged on the left side of the ruler body (1), the auxiliary mechanism (6) is composed of a placing groove (61), a limiting block (62) and a teaching aid rod (63), the placing groove (61) is transversely formed in the rear end of the right side of the ruler body (1), the limiting block (62) is fixed to the upper end and the lower end of the right side in the placing groove (61), the teaching aid rod (63) is embedded in the placing groove (61), the fixed point mechanism (7) is composed of a pressing block (71), a rotary bead (72), a positioning block (73), a screw groove (74), a driving element (75), a switch button (76), a storage battery (77) and a charging port (78), the pressing block (71) is embedded in the left side of the ruler body, and according to the bottom of the pressing block (71), a positioning block (73) is embedded, the middle of the top surface of the positioning block (73) is longitudinally arranged in the screw groove (74), the driving element (75) is arranged in the middle of the top end of the pressing block (71), the switch button (76) is arranged at the rear end of the left side of the ruler body (1), the storage battery (77) is arranged on the right side of the inner top end of the pressing block (71), and the charging port (78) is arranged on the left side of the front end of the ruler body (1).

2. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 1, which is characterized in that: the driving element (75) consists of a fixed seat (751), a motor (752), a rotating shaft (753), an outer toothed ring (754), a first bevel gear (755), a second bevel gear (756) and a screw (757), the top surface of the fixed seat (751) is fixedly connected with the middle part of the inner top end of the pressing block (71), the motor (752) is arranged on the right side of the fixed seat (751), the right side of the rotating shaft (753) transversely penetrates through the middle part of the fixed seat (751) and coaxially rotates with an output shaft on the left side of the motor (752), the left side of the outer wall of the rotating shaft (753) is attached to the inner wall of the outer toothed ring (754), the first bevel gear (755) is arranged on the left side in the fixed seat (751), the second bevel gear (756) is arranged on the inner bottom of the fixed seat (751), the screw (757) is rotatably connected with the second bevel gear (756) through a connecting shaft, and the motor (752, the motor (752) and the switch button (76) are both electrically connected with the storage battery (77), and the motor (752) is electrically connected with the switch button (76).

3. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 2, wherein: the first bevel gear (755) and the second bevel gear (756) are identical in structure and size, and an included angle formed between the first bevel gear (755) and the second bevel gear (756) is 90 degrees.

4. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 2, wherein: the inner wall of the first bevel gear (755) is meshed with the outer toothed ring (754), and the first bevel gear (755) is meshed with the second bevel gear (756).

5. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 1, which is characterized in that: a dust cover is arranged at the position of the charging port (78), and a pull handle is fixed outside the dust cover.

6. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 1, which is characterized in that: the top of the inner wall of the screw rod groove (74) is surrounded by a limiting ring, and the bottom of the screw rod (757) is fixed with a limiting sheet.

7. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 1, which is characterized in that: the bottom of the positioning block (73) is attached with an anti-slip rubber layer, and the bottom surface of the anti-slip rubber layer is provided with anti-slip lines.

8. A novel teaching aid ruler for primary school teaching capable of being stored according to claim 1, which is characterized in that: the surface of the teaching aid stick (63) is in a frosted state, and a pull rope is tied on the right side of the teaching aid stick (63).