CN112009141A

CN112009141A - Teaching is with chalk fixing device of protection skin

Info

Publication number: CN112009141A
Application number: CN202010823671.3A
Authority: CN
Inventors: 刘芯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2020-12-01

Abstract

The invention provides a skin-protecting chalk fixing device for teaching, which comprises a main body, wherein an adjusting mechanism is movably arranged on the main body, the adjusting mechanism is connected with a lead screw through meshing, a bearing is movably arranged at the lower end of the lead screw, the lower side of the bearing is connected with a fixing mechanism, a first mounting block is arranged in the fixing mechanism, and a first spring mechanism is arranged in the first mounting block. This teaching is with chalk fixing device of protection skin, contact with first mounting through chalk mechanism upper end, first spring compression is to the state of tightening, first haulage rope produces not hard up simultaneously, second spring mechanism promotes the second mounting through elasticity, it fixes chalk mechanism to make the second mounting, thereby guarantee that chalk mechanism fixes, the teacher is at the in-process that uses, only need just can write through holding the main part, do not need the hand directly to contact with the chalk, thereby make equipment reach effectual effect of protecting hand skin.

Description

Teaching is with chalk fixing device of protection skin

Technical Field

The invention belongs to the technical field of teaching equipment, and particularly relates to a chalk fixing device for protecting skin for teaching.

Background

The chalk is a tool widely used in daily life and generally used for writing on a blackboard, ancient chalks are generally made of natural chalk, but are frequently replaced by other substances at present, the main component of the chalk is calcium sulfate, the chalk is a white precipitate, the chalk is not easy to decompose, the particles are larger than dust, the domestic chalks mainly comprise two types of common chalks and dust-free chalks, and the main components of the domestic chalks are calcium carbonate (limestone) and calcium sulfate (gypsum) or a small amount of calcium oxide.

At present, the chalk is the instrument that uses widely in daily life, the teacher often needs to write on the blackboard, the drawing explains, often leave one deck white chalk dust on hand, it is so every day, year after year, long back of working time, skin on hand is because long-term and chalk contact, lead to skin rough, even lead to its health to appear uncomfortable, thereby influence vast teacher's healthy problem, and most teaching equipment at present all are the supplementary teaching of electronic equipment, the teacher still has to hold an infrared lamp in the hand at the in-process of teaching and guides the student, thereby use and bring inconvenience for the teacher.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a chalk fixing device for protecting the skin for teaching is provided, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides a chalk fixing device for protecting the skin for teaching, which is achieved by the following specific technical means:

a chalk fixing device for protecting skin for teaching comprises a main body, wherein an adjusting mechanism is movably mounted on the main body and connected with a lead screw through meshing, a bearing is movably mounted at the lower end of the lead screw, the lower side of the bearing is connected with a fixing mechanism, a first mounting block is arranged inside the fixing mechanism, a first spring mechanism is arranged inside the first mounting block, a first fixing part is fixedly mounted at the lower end of the first spring mechanism, a chalk mechanism is arranged on the lower side of the first fixing part, a first traction rope is arranged on the upper side of the first fixing part, the shaft end of the first traction rope penetrates through a second mounting block and is connected with the second fixing part, a second spring mechanism is mounted between the second mounting block and the second fixing part, a button is movably mounted on the left side of the main body, and a third spring mechanism is mounted on the right side of the button, the right-hand member of third spring mechanism is connected with first fixed block, the upside fixedly connected with second haulage rope of button, the second haulage rope runs through the second fixed block and is connected with the baffle, install fourth spring mechanism between second fixed block and the baffle, fixed mounting has the installing support on the right side inner wall of main part, install infrared lamp on the installing support.

Furthermore, the upper end fixed mounting of lead screw has the locating part, is convenient for restrict the lead screw at effectual home range through setting up the locating part.

Further, the upper side and the lower side of the adjusting mechanism are both provided with sliders, the sliders are arranged on the inner wall of the main body, and the adjusting mechanism is convenient to increase stability in the rotating process through the sliders.

Furthermore, a protection piece is fixedly mounted at the lower end of the main body, and the chalk mechanism can be effectively protected by the protection piece, so that the chalk mechanism is prevented from being broken.

Further, the left side of button is provided with the response piece, the inside of first fixed block is provided with the response piece, the response piece is connected through the electrical property with the response piece, contacts with the response piece when the response piece, produces the signal of telecommunication, makes infrared lamp jet out the infrared ray through the illumination mouth, and the help teacher of being convenient for teaches and guides.

Furthermore, the upper side of the main body is provided with an illumination port, so that the infrared lamp can conveniently emit infrared rays through the illumination port.

Furthermore, the pit grains have been seted up in adjustment mechanism's the outside, through setting up the pit grain rotation of being convenient for adjustment mechanism, make the better atress of hand, avoid the pivoted in-process to appear sliding to the practicality of equipment has been promoted.

Advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1. this teaching is with chalk fixing device of protection skin, when chalk mechanism installs on the device, contact with first mounting through chalk mechanism upper end, first spring compression is to the state of tightening, first haulage rope produces not hard up simultaneously, second spring mechanism promotes the second mounting through elasticity, make the second mounting fix chalk mechanism, thereby guarantee that chalk mechanism fixes, the teacher is at the in-process that uses, only need just can write through holding the main part, do not need the hand directly to contact with the chalk, thereby make equipment reach effectual effect of protecting hand skin.

2. This teaching is with chalk fixing device of protection skin, when chalk mechanism exhausts a part, through rotating adjustment mechanism, adjustment mechanism connects through the meshing and drives the lead screw downstream, the lead screw is when the pivoted in the bearing, fixing mechanism is promoting the downstream, and then the propelling movement of chalk mechanism downstream to effectively utilize chalk mechanism, can not make it because the overlength leads to chalk mechanism to take place the fracture, cause unnecessary extravagant, thereby make equipment reach the effect of avoiding chalk mechanism fracture extravagant.

3. This chalk fixing device of protection skin is used in teaching, when the teacher need use the infrared lamp to guide at the in-process of teaching, through pressing the button in the main part, the button compresses third spring mechanism to the state of tightening, drive the second haulage rope simultaneously, compress fourth spring mechanism to the state of tightening in the time of second haulage rope pulling baffle, spill the illumination mouth, and when the button is pressed, the response piece contacts with the response piece, produce the signal of telecommunication, make infrared lamp penetrate the infrared ray through the illumination mouth, the help teacher of being convenient for teaches and guides, thereby make equipment reach the effect that the infrared lamp taught.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of portion C of FIG. 1 according to the present invention.

In the figure: 1. a main body; 2. an adjustment mechanism; 3. a screw rod; 4. a bearing; 5. a fixing mechanism; 6. a first mounting block; 7. a first spring mechanism; 8. a first fixing member; 9. a first pull cord; 10. a second mounting block; 11. a second fixing member; 12. a second spring mechanism; 13. a chalk mechanism; 14. a limiting member; 15. a slider; 16. a guard; 17. a button; 18. a third spring mechanism; 19. a sensing member; 20. a first fixed block; 21. an induction sheet; 22. a second pull cord; 23. a second fixed block; 24. a baffle plate; 25. a fourth spring mechanism; 26. an illumination port; 27. mounting a bracket; 28. an infrared lamp.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 5:

the invention provides a chalk fixing device for protecting skin for teaching, which comprises a main body 1, wherein an adjusting mechanism 2 is movably arranged on the main body 1, sliders 15 are respectively arranged and installed on the upper side and the lower side of the adjusting mechanism 2, the sliders 15 are arranged on the inner wall of the main body 1, the stability of the adjusting mechanism 2 is improved in the rotating process by arranging the sliders 15, pit grains are arranged on the outer side of the adjusting mechanism 2, the adjusting mechanism 2 is convenient to rotate by arranging the pit grains, so that the hand is better stressed, the sliding in the rotating process is avoided, the practicability of the device is improved, the adjusting mechanism 2 is connected with a screw rod 3 through meshing, a limiting part 14 is fixedly arranged at the upper end of the screw rod 3, the screw rod 3 is convenient to be limited in an effective moving range by arranging the limiting part 14, a bearing 4 is movably arranged at the lower end of the screw rod 3, and the lower side, the inside of the fixing mechanism 5 is provided with a first mounting block 6, the inside of the first mounting block 6 is provided with a first spring mechanism 7, the lower end of the first spring mechanism 7 is fixedly provided with a first fixing part 8, the lower side of the first fixing part 8 is provided with a chalk mechanism 13, the lower end of the main body 1 is fixedly provided with a protection part 16, the chalk mechanism 13 can be effectively protected by the arrangement of the protection part 16, the chalk mechanism is prevented from being broken, the upper side of the first fixing part 8 is provided with a first traction rope 9, the shaft end of the first traction rope 9 penetrates through the second mounting block 10 to be connected with a second fixing part 11, a second spring mechanism 12 is arranged between the second mounting block 10 and the second fixing part 11, the left side of the main body 1 is movably provided with a button 17, the right side of the button 17 is provided with a third spring mechanism 18, and the right end of the third spring mechanism, button 17's upside fixedly connected with second haulage rope 22, second haulage rope 22 runs through second fixed block 23 and is connected with baffle 24, install fourth spring mechanism 25 between second fixed block 23 and the baffle 24, fixed mounting has installing support 27 on main part 1's the right side inner wall, install infrared lamp 28 on the installing support 27, button 17's left side is provided with response piece 19, first fixed block 20's inside is provided with response piece 21, response piece 19 is connected through the electrical property with response piece 21, contact with the response piece when response piece 19, produce the signal of telecommunication, make infrared lamp 28 through illumination mouth 26 infrared ray of penetrating, the help teacher of being convenient for imparts knowledge to students and guides, illumination mouth 26 has been seted up to main part 1's upside, be convenient for infrared lamp 28 through illumination mouth 26 infrared ray of penetrating.

The specific use mode and function of the embodiment are as follows:

the working principle is as follows: when the chalk fixing device for protecting the skin for teaching is used, when a chalk mechanism 13 is installed on the device, the upper end of the chalk mechanism 13 is in contact with a first fixing part 8, a first spring is compressed to be in a tightened state, meanwhile, a first traction rope 9 is loosened, a second spring mechanism 12 pushes a second fixing part 11 through elasticity, the second fixing part 11 is enabled to fix the chalk mechanism 13, and therefore the chalk mechanism 13 is guaranteed to be fixed, a teacher can write only by holding a main body 1 in the using process without directly contacting hands with the chalk, so that the device achieves the effective effect of protecting the skin of the hands, when the chalk mechanism 13 is used up, the adjusting mechanism 2 is rotated, the adjusting mechanism 2 drives a screw rod 3 to move downwards through meshing connection, and when the screw rod 3 rotates in a bearing 4, the fixing mechanism 5 is pushed to move downwards, and then the chalk mechanism 13 is pushed to move downwards, so that the chalk mechanism 13 is effectively utilized, the chalk mechanism 13 cannot be broken due to overlong, unnecessary waste is caused, and the equipment achieves the effect of avoiding the breakage waste of the chalk mechanism 13, when a teacher needs to use an infrared lamp for guidance in the teaching process, by pressing the button 17 on the main body 1, the button 17 compresses the third spring mechanism 18 to a tightened state, and simultaneously drives the second traction rope 22, the fourth spring mechanism 25 is compressed to the tightened state while the baffle 24 is pulled by the second traction rope 22, the light irradiation port 26 is exposed, and when the button 17 is pressed, the sensing piece 19 is in contact with the sensing block to generate an electric signal, so that the infrared lamp 28 emits infrared rays through the light irradiation port 26, and the teaching guidance of the teacher is facilitated, thereby the device achieves the effect of infrared lamp teaching; and the equipment is simple to operate and convenient to use.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims

1. The utility model provides a teaching is with chalk fixing device of protection skin, includes main part (1), its characterized in that: the adjustable chalk box is characterized in that an adjusting mechanism (2) is movably mounted on the main body (1), the adjusting mechanism (2) is connected with a lead screw (3) through meshing, a bearing (4) is movably mounted at the lower end of the lead screw (3), the lower side of the bearing (4) is connected with a fixing mechanism (5), a first mounting block (6) is arranged inside the fixing mechanism (5), a first spring mechanism (7) is arranged inside the first mounting block (6), a first fixing part (8) is fixedly mounted at the lower end of the first spring mechanism (7), a chalk mechanism (13) is arranged at the lower side of the first fixing part (8), a first traction rope (9) is arranged on the upper side of the first fixing part (8), the shaft end fixing part of the first traction rope (9) penetrates through a second mounting block (10) to be connected with a second fixing part (11), a second spring mechanism (12) is mounted between the second mounting block (10) and the second fixing part (11), the left side movable mounting of main part (1) has button (17), third spring mechanism (18) are installed on the right side of button (17), the right-hand member of third spring mechanism (18) is connected with first fixed block (20), upside fixedly connected with second haulage rope (22) of button (17), second haulage rope (22) run through second fixed block (23) and are connected with baffle (24), install fourth spring mechanism (25) between second fixed block (23) and baffle (24), fixed mounting has installing support (27) on the right side inner wall of main part (1), install infrared lamp (28) on installing support (27).

2. A chalk holder for teaching protection of skin as claimed in claim 1, wherein: and a limiting piece (14) is fixedly arranged at the upper end of the screw rod (3).

3. A chalk holder for teaching protection of skin as claimed in claim 1, wherein: the upper side and the lower side of the adjusting mechanism (2) are provided with sliders (15), and the sliders (15) are arranged on the inner wall of the main body (1).

4. A chalk holder for teaching protection of skin as claimed in claim 1, wherein: a protection piece (16) is fixedly arranged at the lower end of the main body (1).

5. A chalk holder for teaching protection of skin as claimed in claim 1, wherein: the left side of button (17) is provided with response piece (19), the inside of first fixed block (20) is provided with response piece (21), response piece (19) are connected through the electrical property with response piece (21).

6. A chalk holder for teaching protection of skin as claimed in claim 1, wherein: the upper side of the main body (1) is provided with an illumination opening (26).

7. A chalk holder for teaching protection of skin as claimed in claim 1, wherein: the outer side of the adjusting mechanism (2) is provided with pits.