CN221466163U

CN221466163U - Teaching aid

Info

Publication number: CN221466163U
Application number: CN202322971216.XU
Authority: CN
Inventors: 范勇; 王莉莉
Original assignee: Tianjin National Vocational Skills Appraisal Institute No 6
Current assignee: Tianjin National Vocational Skills Appraisal Institute No 6
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-08-02
Anticipated expiration: 2033-11-03

Abstract

The utility model relates to the technical field of teaching aids for middle-position teachers, in particular to a teaching aid. The utility model comprises a first connecting rod, wherein a telescopic structure is arranged on the inner side of the first connecting rod, one side of the telescopic structure is provided with an angle adjusting structure, one side of the angle adjusting structure is fixedly provided with a third connecting rod, one side of the third connecting rod is provided with a third motor, the output end of the third motor is provided with a cleaning structure, and the telescopic structure comprises a first motor, a screw rod, a sliding rod and a second connecting rod. According to the teaching aid, through the design of the telescopic structure, the length of the device can be increased, a user can indicate a target at the high position of the blackboard to a student, and teaching is facilitated; the device is through the design of angle adjusting structure and clean structure for the device can assist the blackboard of wiping, and can wipe the writing of blackboard eminence, has improved the availability factor of device greatly.

Description

Teaching aid

Technical Field

The utility model relates to the technical field of teaching aids for middle-position teachers, in particular to a teaching aid.

Background

The teaching stick, also called pointer, is a tool used in the educational teaching process, and is mainly used for indicating or guiding the attention of students. It is generally made of wood, plastic or metal, and is mostly elongated in shape, resembling a stick or a whip.

The main function of the teaching stick is to assist teachers in teaching. For example, a teacher may use a teaching stick to point to a blackboard or to project accent on a projection to guide the student's line of sight to help them understand and memorize better. Meanwhile, when moving in a classroom, the teaching stick can also serve as a fulcrum of a teacher to help the teacher to keep balance, especially when a great gesture is needed to explain a certain concept.

However, the teaching stick is not merely a substantial tool, but it has a symbolic meaning. In many cultures, a teaching stick is considered a metaphor for knowledge and authority. It represents the status and responsibility of the teacher, and also reminds students to respect and concentrate on the learning process.

Nevertheless, as educational technology advances and teaching methods change, the use of teaching sticks gradually decreases. Many teachers prefer to use digitizing tools, such as projectors and interactive whiteboards, to assist in teaching. However, in any event, the teaching stick is a traditional tool in the education field, and the unique symbolism and educational value of the teaching stick still deserves approval and honoring.

In general, a teaching stick is a teaching tool with practical functions and symbolism. It not only helps the teacher to better teach, but also represents the authority and knowledge of the teacher, and the learning enthusiasm and honour of the students. Although the use of teaching sticks has gradually decreased in modern education, its impact and contribution to the educational field is still not negligible.

For example, chinese patent (CN 216450236U) discloses a teaching stick for teaching, which solves the problems that the structure of the existing teaching stick is single, the existing teaching stick needs to be lifted and stopped continuously when in use, contact pressure can be generated when the teaching stick is stopped, the use burden of hands can be accelerated by frequent operation, and the operation flexibility of a user is further affected; the device comprises a handle, an embedded cover, a rotary lock, a rotating shaft, a clamping block, a concave plate, an adjusting rolling connector, a loop and a rod, wherein the rod end is provided with the embedded adjusting rolling connector, the sliding part is correspondingly arranged on the inner rail wall of the casing, the casing is provided with the embedded telescopic rod and a guide embedded block, the central shaft of the rolling connector is connected with the telescopic rod, in order to facilitate the operation of a user, the sliding part can linearly displace along the inner wall by the aid of the outer pulling clamping block according to the use requirement, after the outer pulling clamping block stops moving and fastening, the outer end point of the rolling connector can keep a rotation midpoint unchanged, smooth rolling displacement on a writing plate surface can be realized, lifting and stopping hand actions are avoided, and the operation flexibility of the teaching rod can be effectively improved.

When the above technology is used, the following technical problems are found in the prior art: the device lacks telescoping device, and then makes the user can not give the student to the target of blackboard eminence, and can't assist and clean the blackboard, leads to the function singleness, and for this reason, we design a teaching aid for provide another technical scheme to above-mentioned technical problem.

Disclosure of utility model

Based on this, it is necessary to provide a teaching tool for solving the above-mentioned problems in the background art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a teaching aid, includes first connection rod, extending structure is installed to the inboard of first connection rod, one side of extending structure is provided with angle adjusting structure, one side of angle adjusting structure is fixed with the third connection rod, one side of third connection rod is provided with the third motor, the output of third motor is provided with clean structure.

As a preferred implementation mode of the teaching aid provided by the utility model, the telescopic structure comprises a first motor, a screw rod, a sliding rod and a second connecting rod, wherein the first motor is fixed on the inner side of the first connecting rod, the screw rod is fixed at the output end of the first motor, the sliding rod is fixed at one end of the inner side of the first connecting rod, the second connecting rod is connected with the outer side of the screw rod in a threaded manner, and the second connecting rod is connected with the sliding rod in a sliding manner.

As a preferred implementation mode of the teaching aid provided by the utility model, the angle adjusting structure comprises limiting plates, a second motor, worms, worm wheels, rotating shafts, connecting plates and rotating plates, wherein two limiting plates are fixed on one side of each second connecting rod, the two adjacent sides of each limiting plate are rotationally connected with the worms, one of the top parts of each limiting plate is fixedly provided with the second motor, the output end of each second motor is fixedly connected with the corresponding worm, two connecting plates are fixedly connected with the two sides of one end of each second connecting rod, the inner sides of the two adjacent connecting plates are rotationally connected with the rotating shafts, one end of the outer side of each rotating shaft is fixedly provided with the worm wheel, the worm wheels are in meshed connection with the corresponding worm, and the rotating plates are fixedly connected with the outer sides of the rotating shafts in a sliding mode.

As a preferred implementation mode of the teaching aid provided by the utility model, one side of the second connecting rod is provided with a rectangular groove, and the second connecting rod is connected with the rotating plate in a sliding manner through the rectangular groove.

As a preferred implementation mode of the teaching aid provided by the utility model, the cleaning structure comprises a third connecting rod, a mounting plate, a first bevel gear, a second bevel gear, a rotating rod and a blackboard eraser, wherein the third connecting rod is fixed on one side of the rotating plate, the mounting plate is fixed on the outer side of the third connecting rod, one side of the mounting plate is fixed with a third motor, the first bevel gear is fixed at the output end of the third motor, the rotating rod is connected to the inner side of the third connecting rod in a rotating way, the second bevel gear is fixed at one end of the outer side of the rotating rod, the second bevel gear is in meshed connection with the first bevel gear, and the blackboard eraser is fixed on the other side of the rotating rod.

As a preferred implementation mode of the teaching aid provided by the utility model, a bearing is arranged on the outer side of the rotating rod, and the rotating rod is rotatably connected with the third connecting rod through the bearing.

As an optimized implementation mode of the teaching aid provided by the utility model, a storage battery is arranged in the first connecting rod, and the first motor, the second motor and the third motor are all electrically connected with the storage battery.

It can be clearly seen that the technical problems to be solved by the present application can be necessarily solved by the above-mentioned technical solutions of the present application.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

According to the teaching aid, through the design of the telescopic structure, the length of the device can be increased, a user can indicate a target at the high position of the blackboard to a student, and teaching is facilitated;

The device is through the design of angle adjusting structure and clean structure for the device can assist the blackboard of wiping, and can wipe the writing of blackboard eminence, has improved the availability factor of device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a teaching aid according to the present utility model;

FIG. 2 is a side view of a teaching aid of the present utility model;

FIG. 3 is a schematic diagram of the connection of a first motor and a screw of the teaching aid of the present utility model;

FIG. 4 is a schematic diagram of the connection of a worm and a worm wheel of the teaching aid of the present utility model;

Fig. 5 is a schematic diagram showing connection of a first bevel gear and a second bevel gear of the teaching aid according to the present utility model.

In the figure: 1. a first connecting rod; 2. a first motor; 3. a screw; 4. a slide bar; 5. a second connecting rod; 6. a limiting plate; 7. a second motor; 8. a worm; 9. a worm wheel; 10. a rotating shaft; 11. a connecting plate; 12. a rotating plate; 13. a third connecting rod; 14. a mounting plate; 15. a third motor; 16. a first bevel gear; 17. a second bevel gear; 18. a rotating rod; 19. a blackboard eraser.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As described in the background art, the device lacks a telescopic device, so that a user cannot point a target at the height of the blackboard to a student, and cannot assist in wiping the blackboard, resulting in single function.

In order to solve the technical problem, the utility model provides a teaching aid.

Specifically, referring to fig. 1 to 5, a teaching tool specifically includes: the first rod that connects 1, the telescopic structure is installed to the inboard of first rod that connects 1, and one side of telescopic structure is provided with angle adjustment structure, and one side of angle adjustment structure is fixed with third rod that connects 13, and one side of third rod that connects 13 is provided with third motor 15, and the output of third motor 15 is provided with clean structure.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Referring to fig. 1-5, a teaching tool comprises a first connecting rod 1, wherein a telescopic structure is arranged on the inner side of the first connecting rod 1, an angle adjusting structure is arranged on one side of the telescopic structure, a third connecting rod 13 is fixed on one side of the angle adjusting structure, a third motor 15 is arranged on one side of the third connecting rod 13, and a cleaning structure is arranged at the output end of the third motor 15.

The telescopic structure includes first motor 2, screw rod 3, slide bar 4 and second connection rod 5, and first connection rod 1 inboard is fixed with first motor 2, and the output of first motor 2 is fixed with screw rod 3, and the inboard one end of first connection rod 1 is fixed with slide bar 4, and screw rod 3's outside threaded connection has second connection rod 5, and second connection rod 5 and slide bar 4 sliding connection for telescopic structure can adjust the length of device.

The angle adjusting structure comprises a limiting plate 6, a second motor 7, a worm 8, a worm wheel 9, a rotating shaft 10, a connecting plate 11 and a rotating plate 12, wherein two limiting plates 6 are fixed on one side of a second connecting rod 5, the worm 8 is connected to one side of the two limiting plates 6, which is close to each other, in a rotating mode, the top of one limiting plate 6 is fixed with the second motor 7, the output end of the second motor 7 is fixed with the worm 8, two sides of one end of the second connecting rod 5 are both fixed with the connecting plate 11, the inner sides of the two connecting plates 11, which are close to each other, are rotationally connected with the rotating shaft 10, one end of the outer side of the rotating shaft 10 is fixed with the worm wheel 9, the worm wheel 9 is connected with the worm 8 in a meshing mode, the rotating plate 12 is connected with the second connecting rod 5 in a sliding mode, and the angle adjusting structure can adjust the angle of a third connecting rod 13.

A rectangular groove is formed in one side of the second connecting rod 5, and the second connecting rod 5 is in sliding connection with the rotating plate 12 through the rectangular groove, so that the angle of the device is more convenient to adjust.

The cleaning structure comprises a third connecting rod 13, a mounting plate 14, a first bevel gear 16, a second bevel gear 17, a rotating rod 18 and a blackboard eraser 19, wherein the third connecting rod 13 is fixed on one side of the rotating plate 12, the mounting plate 14 is fixed on the outer side of the third connecting rod 13, one side of the mounting plate 14 is fixed with a third motor 15, the first bevel gear 16 is fixed at the output end of the third motor 15, the rotating rod 18 is connected on the inner side of the third connecting rod 13 in a rotating way, the second bevel gear 17 is fixed on one end of the outer side of the rotating rod 18, the second bevel gear 17 is connected with the first bevel gear 16 in a meshed mode, and the blackboard eraser 19 is fixed on the other side of the rotating rod 18, so that the cleaning structure can assist in erasing writing contents of a blackboard.

The outside of bull stick 18 is provided with the bearing, and bull stick 18 passes through bearing and third connecting rod 13 rotation and connects for the connection of bull stick 18 and third connecting rod 13 is more stable.

The inside battery that is provided with of first connection rod 1, first motor 2, second motor 7, third motor 15 all with battery electric connection for the device can be by electric control, great use manpower sparingly.

The teaching aid provided by the utility model has the following use process: when the user needs to adjust the length of the device, the user electrifies and rotates the first motor 2, the output end of the first motor 2 drives the screw rod 3 to rotate, the second connecting rod 5 is connected to the outer side of the screw rod 3 in a threaded manner, so that the rotation of the screw rod 3 drives the second connecting rod 5 to slide along the outer side of the slide rod 4, the second connecting rod 5 is further away from one side of the first connecting rod 1, the length of the device is adjusted, a teacher can conveniently indicate a target at the high position of a blackboard to students, and the teaching efficiency is improved; when the blackboard is required to be cleaned, a user electrifies and rotates the second motor 7, the output end of the second motor 7 drives the worm 8 to rotate, the worm 8 is connected with the worm wheel 9 in a meshed manner, the worm 8 rotates to drive the worm wheel 9 to rotate, the rotating shaft 10 is further driven to rotate, the rotating shaft 10 rotates to drive the rotating plate 12 to rotate, the rotating plate 12 rotates to drive the third connecting rod 13 to rotate, the user electrifies and rotates the third motor 15, the output end of the third motor 15 drives the first bevel gear 16 to rotate, and one side of the first bevel gear 16 is connected with the second bevel gear 17 in a meshed manner, so that the rotation of the first bevel gear 16 drives the second bevel gear 17 to rotate, and then drives the rotating rod 18 and the blackboard eraser 19 to rotate, so that the user can use the rotating blackboard eraser 19 to clean writing contents on the blackboard, and the use efficiency of the device is improved.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a teaching aid, includes first connecting rod (1), its characterized in that, extending structure is installed to the inboard of first connecting rod (1), one side of extending structure is provided with angle adjusting structure, one side of angle adjusting structure is fixed with third connecting rod (13), one side of third connecting rod (13) is provided with third motor (15), the output of third motor (15) is provided with clean structure.

2. The teaching aid according to claim 1, wherein the telescopic structure comprises a first motor (2), a screw rod (3), a sliding rod (4) and a second connecting rod (5), the first motor (2) is fixed on the inner side of the first connecting rod (1), the screw rod (3) is fixed at the output end of the first motor (2), the sliding rod (4) is fixed at one end of the inner side of the first connecting rod (1), the second connecting rod (5) is connected with the outer side of the screw rod (3) in a threaded manner, and the second connecting rod (5) is connected with the sliding rod (4) in a sliding manner.

3. The teaching aid according to claim 2, wherein the angle adjusting structure comprises a limiting plate (6), a second motor (7), a worm (8), a worm wheel (9), a rotating shaft (10), a connecting plate (11) and a rotating plate (12), two limiting plates (6) are fixed on one side of the second connecting rod (5), two rotating plates (12) are connected to one side of the limiting plates (6) which is close to each other in a rotating mode, one of the top of the limiting plates (6) is fixed with the second motor (7), an output end of the second motor (7) is fixed with the worm (8), two connecting plates (11) are fixed on two sides of one end of the second connecting rod (5), two rotating shafts (10) are connected to one side of the two connecting plates (11) which is close to each other in a rotating mode, one end of the outer side of the rotating shaft (10) is fixed with the worm wheel (9), the rotating plate (12) is connected to the outer side of the rotating shaft (10) in a meshed mode, and the rotating plate (12) is connected to the second connecting rod (5) in a sliding mode.

4. A teaching aid according to claim 3, characterized in that a rectangular groove is provided on one side of the second connecting rod (5), and the second connecting rod (5) is slidably connected with the rotating plate (12) through the rectangular groove.

5. A teaching aid according to claim 3, characterized in that the cleaning structure comprises a third connecting rod (13), a mounting plate (14), a first bevel gear (16), a second bevel gear (17), a rotating rod (18) and a blackboard eraser (19), wherein the third connecting rod (13) is fixed on one side of the rotating plate (12), the mounting plate (14) is fixed on the outer side of the third connecting rod (13), the first bevel gear (16) is fixed on one side of the mounting plate (14) and the third motor (15), the rotating rod (18) is connected on the inner side of the third connecting rod (13) in a rotating mode, the second bevel gear (17) is fixed on one end of the outer side of the rotating rod (18), the second bevel gear (17) is connected with the first bevel gear (16) in a meshed mode, and the blackboard eraser (19) is fixed on the other side of the rotating rod (18).

6. A teaching aid according to claim 5, characterized in that the outer side of the turning lever (18) is provided with bearings, the turning lever (18) being rotatably connected to the third connecting rod (13) via bearings.

7. A teaching aid according to claim 3, characterized in that a storage battery is arranged in the first connecting rod (1), and the first motor (2), the second motor (7) and the third motor (15) are electrically connected with the storage battery.