CN211294226U

CN211294226U - Electronic hand lifting device for classroom

Info

Publication number: CN211294226U
Application number: CN202020385199.5U
Authority: CN
Inventors: 汪丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-08-18
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses an electronic hand lifter for classroom, which comprises a simulated hand, a connecting rod, an upper fixed plate, a positioning rod, a lower fixed plate and a side plate, wherein the bottom of the simulated hand is provided with the connecting rod, the bottom of the connecting rod is movably connected with a lifting mechanism, and the hand lifting stop button, the hand lifting start button, the lifting mechanism are electrically connected with a power supply, the utility model realizes that the utility model is fixed on a student desk through the upper fixed plate, the lower fixed plate, the positioning disk and the positioning rod, controls the pressure applied on the desk by rotating the positioning rod, thereby being capable of easily realizing the installation and the disassembly, facilitating the installation and the later maintenance of students, starting and closing the lifting mechanism by pressing the hand lifting stop button and the hand lifting start button, thereby completing the lifting work of the simulated hand and further facilitating the students to answer the problem of teachers by lifting hands in classroom, and can be conveniently managed by teachers.

Description

Electronic hand lifting device for classroom

Technical Field

The utility model relates to a teaching equipment technical field specifically is an electronic hand lifting device is used in classroom.

Background

With the rapid development of information technology, more and more information-based teaching tools gradually enter the teaching process, the traditional teaching mode cannot meet the education requirements, wherein the more serious problem is that students often hold their hands together when a teacher raises a question and answers them, the order of holding their hands is disordered, a teacher is difficult to judge which students hold their hands first, and many students call the teacher during holding their hands, which is easy to cause disorder of classroom order, and also gives the possibility of muddlers who like to disturb classroom order in weekdays, which is not favorable for the efficient implementation of classroom lectures, and the volume of speech of the teacher affects the teaching quality, which leads to auditory differences among students, and students often feel busy and disorderly when calculating and taking notes quickly, which takes too much classroom time, paper waste is also caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a classroom is with electron hand lifting device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an electronic hand lifter for classroom comprises a simulated hand, a connecting rod, an upper fixing plate, positioning rods, a lower fixing plate and side plates, wherein the connecting rod is arranged at the bottom of the simulated hand, the simulated hand is fixedly connected with the connecting rod, the bottom of the connecting rod is movably connected with a lifting mechanism, the lifting mechanism is fixedly connected to the right side of the side plates, the side plates are vertically arranged, the upper fixing plate is fixedly connected above the left sides of the side plates, the lower fixing plate is arranged at the bottom of the upper fixing plate, the lower fixing plate and the upper fixing plate are arranged at intervals, the lower fixing plate and the side plates are fixedly connected, a hand lifting start button and a hand lifting stop button are sequentially arranged on the left side of the upper end surface of the upper fixing plate from left to right along the horizontal direction, two positioning rods are symmetrically arranged on the lower fixing plate, and the positioning rods are, the bottom of bottom plate has arranged the power, fixed connection between power and the bottom plate, electric connection between hand-lifting stop button, hand-lifting start button, hoist mechanism and the power.

As a further aspect of the present invention: the right side is installed on the simulation hand and is provided with an indicator lamp, and the indicator lamp is electrically connected with the power supply.

As a further aspect of the present invention: and the positioning rod is fixedly connected with a positioning disc.

As a further aspect of the present invention: the hand-lifting stop button and the hand-lifting start button are elongated buttons.

As a further aspect of the present invention: the hand lifting stop button and the hand lifting start button are circular buttons.

As a further aspect of the present invention: the lifting mechanism comprises a gear, a spur rack and an internal motor, the gear is fixedly connected to an output shaft of the internal motor, and the gear is meshed with the spur rack.

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

the utility model realizes the fixation of the utility model on the desk of the student by rotating the positioning rod, thereby easily realizing the installation and the disassembly, being convenient for the student to install and later maintenance, when the lifting start button is pressed, the built-in motor rotates anticlockwise to drive the connecting rod to ascend, completing the lifting operation of the analog hand, the indicating lamp arranged on the analog hand is lightened at the same time, giving stronger signals to the teacher, being convenient for the teacher to quickly and accurately judge the sequence of the lifting, and after the button is pressed, the student can release the arm to write, record notes and other classroom study, and after the teacher indicates the end of lifting the hand, the lifting stop button can be pressed, the built-in motor rotates clockwise, thereby drive the connecting rod descends, imitates the hand and descends and the pilot lamp is closed, and then has made things convenient for the student to lift the hand and answer mr's problem in the classroom, also can be convenient for mr to manage.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of an electronic hand lifter for classroom.

Fig. 2 is a side view of the electronic hand lifter for classroom use.

Fig. 3 is a partially enlarged view of the lifting mechanism.

In the figure: 11. simulating a hand; 12. a connecting rod; 13. an upper fixing plate; 14. a hand raising stop button; 15. a hand raising start button; 16. positioning a plate; 17. positioning a rod; 18. a lower fixing plate; 19. a side plate; 20. a lifting mechanism; 21. an indicator light; 22. a power source; 23. straight rack; 24. a gear; 25. a built-in motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the term "center". The directional or positional relationships "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "side," and the like are indicative of the directional or positional relationships illustrated in fig. 1, merely to facilitate description and to simplify description, and are not indicative or implied that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Example 1

Referring to fig. 1-3, an electronic hand lifter for classroom includes a simulated hand 11, a connecting rod 12, an upper fixing plate 13, a positioning rod 17, a lower fixing plate 18 and a side plate 19, wherein the connecting rod 12 is disposed at the bottom of the simulated hand 11, the simulated hand 11 is fixedly connected to the connecting rod 12, the bottom of the connecting rod 12 is movably connected to a lifting mechanism 20, the lifting function of the simulated hand 11 is realized by the action of the lifting mechanism 20, so as to complete the hand lifting activity in classroom, the lifting mechanism 20 is fixedly connected to the right side of the side plate 19, the side plate 19 is vertically disposed, the upper fixing plate 13 is fixedly connected to the upper side of the left side of the side plate 19, the lower fixing plate 18 is disposed at the bottom of the upper fixing plate 13, the lower fixing plate 18 is spaced from the upper fixing plate 13, and the lower fixing plate 18 is fixedly connected to the side plate 19, upper fixed plate 13 up end left side has arranged in proper order along the horizontal direction from a left side to the right side and has lifted hand start button 15 and lifted hand stop button 14, symmetrical arrangement has two locating levers 17 on lower fixed plate 18, pass through threaded connection between locating lever 17 and the lower fixed plate 18, thereby can be through rotating locating lever 17 adjusts locating lever 17 up end with distance between upper fixed plate 13, thereby can fix this embodiment on student's desk, power 22 has been arranged to the bottom of lower fixed plate 18, power 22 is with fixed connection between the lower fixed plate 18, lift hand stop button 14, lift hand start button 15, lifting mechanism 20 are with electric connection between power 22.

As a further aspect of this embodiment: in order to increase the contact area between the positioning rod 17 and the desk and prevent the sliding of the present embodiment, a positioning plate 16 is fixedly connected to the positioning rod 17.

As a further aspect of this embodiment: the hand-lifting stop button 14 and the hand-lifting start button 15 are elongated slot type buttons.

As a further aspect of this embodiment: the lifting mechanism comprises a gear 24, a spur rack 23 and an internal motor 25, the gear 24 is fixedly connected to an output shaft of the internal motor 25, and the gear 24 is meshed with the spur rack 23.

Example 2

This embodiment is a further limitation and improvement of embodiment 1, based on embodiment 1, and an electronic hand-lifting device for classroom use, which comprises all the technical features of embodiment 1, and further,

as a further aspect of this embodiment: in order to make the simulated hand 11 in the present embodiment more conspicuous when lifted and easier to be found by the teacher, an indicator light 21 is installed on the right side of the simulated hand 11, and the indicator light 21 is electrically connected to a power source 22.

The present embodiment is different from embodiment 1 in that the hand-lifting stop button 14 and the hand-lifting start button 15 are circular buttons in the present embodiment.

The utility model discloses a theory of operation is:

the utility model realizes the fixation of the utility model on the desk of the student by rotating the positioning rod 17, thereby controlling the pressure applied on the desk by rotating the positioning rod 17, the installation and the disassembly can be easily realized, the installation and the later maintenance of the student are convenient, when the lifting start button 15 is pressed, the built-in motor 25 rotates anticlockwise to drive the connecting rod 17 to rise, the operation of lifting the simulated hand 11 is completed, the indicating lamp 21 arranged on the simulated hand 11 is lightened at the same time, a stronger signal is given to the teacher, the teacher can quickly and accurately judge the sequence of the lifting, the student can release the arm to write, record notes and other classroom learning after the button is pressed, and the lifting stop button 14 can be pressed after the teacher indicates the end of the lifting, the built-in motor 25 rotates clockwise, so that the connecting rod 17 is driven to descend, the simulated hand 11 descends and the indicator light 21 is turned off.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The electronic hand lifter for the classroom comprises a simulated hand (11), a connecting rod (12), an upper fixing plate (13), a positioning rod (17), a lower fixing plate (18) and a side plate (19), and is characterized in that the connecting rod (12) is arranged at the bottom of the simulated hand (11), the simulated hand (11) is fixedly connected with the connecting rod (12), the bottom of the connecting rod (12) is movably connected with a lifting mechanism (20), the lifting mechanism (20) is fixedly connected to the right side of the side plate (19), the side plate (19) is vertically arranged and is fixedly connected with the upper fixing plate (13) above the left side of the side plate (19), the bottom of the upper fixing plate (13) is provided with the lower fixing plate (18), the lower fixing plate (18) is arranged with the upper fixing plate (13) and is fixedly connected with the side plate (19) at intervals, upper fixed plate (13) up end left side has arranged hand from a left side to the right side in proper order and has lifted hand start button (15) and hand stop button (14), symmetrical arrangement has two locating levers (17) on bottom plate (18), pass through threaded connection between locating lever (17) and bottom plate (18), power (22) have been arranged to the bottom of bottom plate (18), power (22) and fixed connection between bottom plate (18), hand stop button (14), hand start button (15), elevating system (20) and electric connection between power (22).

2. The classroom electronic hand lifter according to claim 1, wherein an indicator light (21) is mounted on the right side of the simulated hand (11), and the indicator light (21) is electrically connected with a power supply (22).

3. An electronic classroom hand lifter according to claim 1 or 2, wherein a positioning plate (16) is fixedly connected to the positioning rod (17).

4. The classroom electronic hand lifter according to claim 3, wherein the hand lifter stop button (14) and the hand lifter start button (15) are elongated buttons.

5. A classroom electronic hand lifter according to claim 3, wherein the hand lifter stop button (14) and the hand lifter start button (15) are circular buttons.

6. The classroom electronic hand lifter according to claim 3, wherein the lifting mechanism comprises a gear (24), a spur rack (23) and an internal motor (25), the gear (24) is fixedly connected to an output shaft of the internal motor (25), and the gear (24) is meshed with the spur rack (23).