CN210091452U

CN210091452U - Multifunctional teacher's pointer and stick

Info

Publication number: CN210091452U
Application number: CN201920717286.3U
Authority: CN
Inventors: 邱浩; 单强; 李嘉诚
Original assignee: China University of Petroleum East China
Current assignee: China University of Petroleum East China
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-18
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a multi-functional teacher's pointer rod, including handle and the first body of rod, the handle welding is in the upper end surface intermediate position of the first body of rod, one side of the first body of rod is provided with the recess, and the opening of recess is located first body of rod one side and below position, inside one side fixed mounting of recess has the rack, the inside position movable mounting who is close to the rack of recess has the sliding seat, the inside of sliding seat runs through and is fixed with the gear, the front end fixed surface of sliding seat installs the pivot, the surface parcel of pivot has the second body of rod, the second body of rod is close to one side fixed surface of groove opening part and installs the handle. The utility model discloses, can make the teacher's pointer rod break away from its original function limitation, be particularly useful for mathematics classroom teaching, simple structure, the practicality is promoted by a wide margin, can also extend the length of whole teacher's pointer rod to be suitable for different teaching demands.

Description

Multifunctional teacher's pointer and stick

Technical Field

The utility model relates to a teacher's pointer stick technical field specifically is a multi-functional teacher's pointer stick.

Background

The teacher stick is the suggestion device that instruction blackboard writing, picture were used when teacher lectures, and traditional teacher stick is the body of rod that length is fixed, and the user not only is inconvenient and more hard with getting up, still easily shelters from the typeface on the blackboard to current teacher stick simple structure, the result of use is excellent inadequately, and often the instrument serviceable function is comparatively single, the discount that the practicality is big.

Therefore, a multifunctional teacher's pointer stick is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-functional teacher's pointer rod can make the teacher's pointer rod break away from its original function limitation, is particularly useful for mathematics classroom teaching, simple structure, and the practicality is promoted by a wide margin, can also extend the length of whole teacher's pointer rod to be suitable for different teaching demands, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional teacher's pointer stick comprises a handle and a first rod body, wherein the handle is welded in the middle of the outer surface of the upper end of the first rod body, one side of the first rod body is provided with a groove, the opening of the groove is positioned at one side and below the first rod body, one side of the inside of the groove is fixedly provided with a rack, a movable seat is movably arranged at the position, close to the rack, inside the groove, a gear penetrates through and is fixed inside the movable seat, the outer surface of the front end of the movable seat is fixedly provided with a rotating shaft, the outer surface of the rotating shaft is wrapped with a second rod body, the outer surface of one side, close to the opening of the groove, of the second rod body is fixedly provided with a handle, and the;

can make the teacher's pointer rod break away from its original function limitation through the first body of rod cooperation second body of rod and the sliding seat that sets up, be particularly useful for mathematics classroom teaching, simple structure, the practicality is promoted by a wide margin, and through the sliding seat cooperation recess that sets up, the length of the whole teacher's pointer rod of this characteristic extension can be utilized to be suitable for different teaching demands.

Furthermore, the outer surface of the handle is wrapped with an anti-slip sleeve.

Through adopting above-mentioned technical scheme, the antiskid cover can increase frictional force, protects hand.

Further, the gear includes peripheral gear teeth and a bearing disposed within the gear teeth.

By adopting the technical scheme, the gear teeth and the bearing are integrated, so that the bearing capacity of the sliding mechanism is increased, and the movement coaxiality, the stability and the accuracy are improved.

Further, the gear is engaged with the rack.

Through adopting above-mentioned technical scheme, under gear and rack meshing for the second body of rod can steadily slide and form relative displacement with the first body of rod, and then changes the length of original teacher's pointer rod.

Furthermore, the rotating shaft is a linear damping rotating shaft.

By adopting the technical scheme, the rotating shaft has certain damping to ensure that the rotation of the second rod body is not too fast.

Furthermore, scale marks are arranged on one side of the outer surface of the front end of the first rod body.

Through adopting above-mentioned technical scheme, utilize the scale mark can the accurate length of reading when the teacher's pointer rod uses as the ruler.

Further, the measuring range of the scale mark is 0-45cm, and the precision of the scale mark is 1 cm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, can make the teacher's pointer stick break away from its original functional limitation through the first body of rod that sets up cooperation second body of rod and sliding seat, be particularly useful for mathematics classroom teaching, simple structure, the practicality is promoted by a wide margin, in use, can utilize the original characteristic of first body of rod, use it as the ruler, utilize the scale mark can read length accurately simultaneously, can also make certain angle formation between the first body of rod and the second body of rod when guaranteeing that first body of rod and second body of rod bottom are in the same horizontal plane through the pivot on the sliding seat, form the compasses and carry out the teaching with the chalk card into the draw-in groove again, wherein the pivot has certain damping to guarantee the rotation of second body of rod unlikely to be too fast, the operation of drawing circles specifically needs certain dynamics to keep two body of rod angles;

2. the utility model discloses, sliding seat cooperation recess through setting up, can utilize the length of the whole teacher's pointer rod of this characteristic extension, in order to be suitable for different teaching demands, during the use, mainly be through withholding the handle, the second body of rod of drop-down, under gear and rack toothing, make the second body of rod can steadily slide and form relative displacement with the first body of rod, and then change the length of original teacher's pointer rod, wherein the gear includes the teeth of a cogwheel of periphery and sets up the bearing in the teeth of a cogwheel, mainly close the teeth of a cogwheel and bearing as an organic whole, slide mechanism's bearing capacity has been increaseed, the motion axiality has been improved, stationarity and accuracy.

Drawings

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

fig. 2 is a schematic view illustrating the second rod of the present invention being received inside the first rod;

fig. 3 is a schematic view illustrating the second rod of the present invention being expanded inside the first rod;

FIG. 4 is a view of the present invention showing the combination of the groove and the movable seat;

fig. 5 is a combined view of the movable seat and the second rod of the present invention.

In the figure: 1. a grip; 2. a first rod body; 21. scale lines; 22. a groove; 23. a rack; 24. a gear; 3. a second rod body; 31. a handle; 32. a card slot; 4. a movable seat; 41. a rotating shaft.

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. 1-5, the present invention provides a technical solution: a multifunctional teacher's pointer stick is shown in figures 1-3 and comprises a handle 1 and a first rod body 2, wherein the handle 1 is welded in the middle of the outer surface of the upper end of the first rod body 2, a groove 22 is formed in one side of the first rod body 2, the opening of the groove 22 is located in one side and the lower side of the first rod body 2, a rack 23 is fixedly installed on one side of the inside of the groove 22, a movable seat 4 is movably installed in the position, close to the rack 23, of the inside of the groove 22, a second rod body 3 is wrapped on the outer surface of a rotating shaft 41, a handle 31 is fixedly installed on the outer surface of one side, close to the opening of the groove 22, of the second rod body 3;

as shown in fig. 4, a gear 24 penetrates and is fixed inside the movable seat 4;

as shown in fig. 5, a rotating shaft 41 is fixedly mounted on the outer surface of the front end of the movable seat 4.

Through adopting above-mentioned technical scheme, can be so that the teacher's pointer rod breaks away from its original function limitation, be particularly useful for mathematics classroom teaching, simple structure, the practicality is promoted by a wide margin, can also extend the length of whole teacher's pointer rod to be suitable for different teaching demands.

Specifically, as shown in fig. 1, the outer surface of the grip 1 is wrapped with an anti-slip sleeve.

Specifically, as shown in FIG. 4, the gear 24 includes peripheral gear teeth and bearings disposed within the gear teeth.

Specifically, as shown in fig. 4, the gear 24 is engaged with the rack 23.

Through adopting above-mentioned technical scheme, under gear 24 and rack 23 meshing for the second body of rod 3 can steadily slide and form relative displacement with the first body of rod 2, and then changes the length of original teacher's pointer rod.

Specifically, as shown in fig. 5, the rotating shaft 41 is a linear damping rotating shaft.

By adopting the above technical scheme, the rotating shaft 41 has a certain damping to ensure that the rotation of the second rod 3 is not too fast.

Specifically, as shown in fig. 1, a scale mark 21 is provided on one side of the outer surface of the front end of the first rod 2.

Through adopting above-mentioned technical scheme, utilize scale mark 21 can the accurate length of reading when the teacher's pointer rod uses as the ruler.

Specifically, as shown in FIG. 1, the scale 21 has a range of 0-45cm, and the scale 21 has an accuracy of 1 cm.

The working principle is as follows: the pointer stick can be separated from the original function limitation of the pointer stick by the matching of the first rod body 2 with the second rod body 3 and the movable seat 4, is particularly suitable for teaching in mathematics classroom, has simple structure and greatly improved practicability, can be used as a ruler by utilizing the original characteristics of the first rod body 2 when in use, can accurately read the length by utilizing the scale mark 21, can ensure that the first rod body 2 and the second rod body 3 form a certain angle when the bottom ends of the first rod body and the second rod body are in the same horizontal plane by the rotating shaft 41 on the movable seat 4, then clamps chalk into the clamping groove 32 to form compasses for teaching, wherein the rotating shaft 41 has certain damping to ensure that the second rod body 3 does not rotate too fast, the specific circle drawing operation needs certain force to keep the angles of the two rod bodies, and can extend the length of the whole pointer stick by utilizing the characteristics through the matching of the movable seat 4 and the groove 22, in order to be suitable for different teaching demands, during the use, mainly through withholding handle 31, the second body of rod 3 of drop-down, under gear 24 and rack 23 meshing, make the second body of rod 3 can steadily slide and form relative displacement with the first body of rod 2, and then change the length of original teacher's pointer stick, wherein gear 24 includes the teeth of a cogwheel of periphery and sets up the bearing in the teeth of a cogwheel, mainly close the teeth of a cogwheel and bearing as an organic whole, slide mechanism's bearing capacity has been increaseed, motion axiality has been improved, stationarity and accuracy.

The using method comprises the following steps: the original characteristics of the first rod body 2 can be utilized to be used as a ruler, the scale mark 21 can be utilized to accurately read the length, a certain angle can be formed between the bottom ends of the first rod body 2 and the second rod body 3 when the bottom ends of the first rod body 2 and the second rod body 3 are ensured to be at the same horizontal plane through the rotating shaft 41 on the movable seat 4, chalk is clamped into the clamping groove 32 to form compasses for teaching, wherein the rotating shaft 41 has certain damping to ensure that the second rod body 3 does not rotate too fast, a certain force is required to keep the two rod body angles for circle drawing operation, the second rod body 3 is pulled down by buckling the handle 31, under the meshing of the gear 24 and the rack 23, the second rod body 3 can stably slide and form relative displacement with the first rod body 2, the length of the original pointer stick is changed, wherein the gear 24 comprises gear teeth on the periphery and bearings arranged in the gear teeth, and the gear teeth and the bearings are, the bearing capacity of the sliding mechanism is increased, and the movement coaxiality, the stability and the accuracy are improved.

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 multi-functional teacher's pointer stick, includes handle (1) and first body of rod (2), its characterized in that: the handle (1) is welded in the middle of the outer surface of the upper end of the first rod body (2), one side of the first rod body (2) is provided with a groove (22), and the opening of the groove (22) is positioned at one side and the lower part of the first rod body (2), a rack (23) is fixedly arranged on one side inside the groove (22), a movable seat (4) is movably arranged at a position close to the rack (23) inside the groove (22), a gear (24) penetrates through and is fixed in the movable seat (4), a rotating shaft (41) is fixedly arranged on the outer surface of the front end of the movable seat (4), the outer surface of the rotating shaft (41) is wrapped with a second rod body (3), the outer surface of one side of the second rod body (3) close to the opening of the groove (22) is fixedly provided with a handle (31), and a clamping groove (32) is formed in the outer surface of the lower end of the second rod body (3).

2. The multi-functional teacher's pointer and stick of claim 1, wherein: the outer surface of the handle (1) is wrapped with an anti-slip sleeve.

3. The multi-functional teacher's pointer and stick of claim 1, wherein: the gear (24) includes peripheral gear teeth and bearings disposed within the gear teeth.

4. The multi-functional teacher's pointer and stick of claim 3, wherein: the gear (24) is meshed with the rack (23).

5. The multi-functional teacher's pointer and stick of claim 1, wherein: the rotating shaft (41) is a linear damping rotating shaft.

6. The multi-functional teacher's pointer and stick of claim 1, wherein: and scale marks (21) are arranged on one side of the outer surface of the front end of the first rod body (2).

7. The multi-functional teacher's pointer and stick of claim 6, wherein: the measuring range of the scale mark (21) is 0-45cm, and the precision of the scale mark (21) is 1 cm.