CN219883574U

CN219883574U - Chalk installer

Info

Publication number: CN219883574U
Application number: CN202320794363.1U
Authority: CN
Inventors: 段梦珍; 钟伟
Original assignee: Sany Heavy Industry Co Ltd; Hunan Sany Vocational and Technical College of Industry
Current assignee: Sany Heavy Industry Co Ltd; Hunan Sany Vocational and Technical College of Industry
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-10-24
Anticipated expiration: 2033-04-11

Abstract

The utility model provides a chalk installer which comprises a body, a laser lamp and a nano generator, wherein the body is provided with a chalk installation structure; the laser lamp is arranged on the body; the nanometer generator is arranged on the body and is electrically connected with the laser lamp; the operation body can enable the nano generator to provide electric energy for the laser lamp by operating the nano generator. The operating personnel can produce the friction between hand and the chalk installer in-process of using the chalk installer, and the friction can make the both sides of nano generator produce the potential difference, and nano generator can supply power to the laser lamp, and when the operating personnel used the chalk of installing on the chalk installer to write, the laser lamp can light, compares with the mode that uses the battery to supply power to the laser lamp, can practice thrift the electric energy.

Description

Chalk installer

Technical Field

The utility model relates to the technical field of teaching facility supplies, in particular to a chalk installer.

Background

The existing chalk is used as a basic blackboard article, and is often used when financial staff work or report. The chalk has the characteristic of shortening along with the increase of writing time until the chalk becomes a chalk head which can not be written normally, and the chalk head is often discarded by people, so that no small waste is caused. In the prior art, a chalk installer is arranged, a laser lamp is arranged on the chalk installer, the laser lamp is powered by a battery, and the battery is used more frequently to waste resources.

Disclosure of Invention

In view of the above, the utility model provides a chalk installer, wherein an operating body can supply power to a laser lamp through a nano generator in the using process, and electric energy can be saved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a chalk installer comprising:

the chalk comprises a body with a chalk installation structure;

the laser lamp is arranged on the body;

the nano generator is arranged on the body and is electrically connected with the laser lamp;

the operation body can enable the nano generator to provide electric energy for the laser lamp by operating the nano generator.

Preferably, the nano-generator is a friction nano-generator.

Preferably, the friction nano generator comprises:

a first electrode disposed on the body;

the second electrode is arranged on the body and is insulated from the first electrode by a baffle;

wherein the operating body generates a potential difference between the first electrode and the second electrode by rubbing on the first electrode and the second electrode.

Preferably, a rectifier bridge is arranged in a connection circuit between the laser lamp and the nano-generator, and the rectifier bridge is used for converting alternating current generated by the first electrode and the second electrode into direct current.

Preferably, a capacitor is arranged in a connection circuit between the laser lamp and the nano generator, and the capacitor can store current generated by the first electrode and the second electrode and can supply power to the laser lamp.

Preferably, the first electrode and the second electrode are annular structures, and the first electrode and the second electrode are arranged along the circumferential direction of the body.

Preferably, the friction nano-generator comprises a third electrode on which the hand of the operator moves, so that a potential difference is generated between the third electrode and the ground.

Preferably, the installation structure is a round table-shaped groove for accommodating the chalk, and an elastic piece capable of applying clamping force to the chalk is arranged on the wall of the groove.

Preferably, the groove is formed at one end of the body, and the laser lamp is located at the other end of the body.

Preferably, the nano-generator is a piezoelectric nano-generator or a pyroelectric nano-generator.

Drawings

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

Fig. 1 is a front view of a chalk installer provided by this embodiment;

FIG. 2 is a circuit diagram of a nano-generator connected to a laser lamp;

fig. 3 is a front view of a chalk installer in another embodiment;

fig. 4 is a front view of a chalk installer in yet another embodiment.

In the figure: 1. a body; 2. a mounting structure; 3. a laser lamp; 4. a nano-generator; 41. a first electrode; 42. a second electrode; 43. a third electrode; 5. a partition plate; 6. a rectifier bridge; 7. a capacitor; 8. an elastic member.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the embodiment of the utility model provides a chalk installer, which comprises a main body 1, a laser lamp 3 and a nano generator 4.

The body 1 is provided with a chalk installation structure 2; the laser lamp 3 is arranged on the body 1; the nano generator 4 is arranged on the body 1 and is electrically connected with the laser lamp 3; the operation body can cause the nano-generator 4 to supply electric power to the laser lamp 3 by operating the nano-generator 4.

Here, the chalk has a mounting structure 2 providing a mounting location for the chalk; the laser lamp 3 and the nano generator 4 are both installed on the body 1, the laser lamp 3 and the nano generator 4 are connected on the body 1 through wires, when an operation main body holds a chalk installer provided with chalk for writing, the nano generator 4 is interacted, and the nano generator 4 can provide electric energy for the laser lamp 3, so that the laser lamp 3 is lightened.

Specifically, by operating the nano-generator 4 with respect to the operation body, the operation manner of the nano-generator 4 with respect to the operation body with respect to the nano-generator 4 of different types is also different. For example: when the nano-generator 4 is a friction nano-generator, the operation mode is that the operation body rubs the electrodes of the generator by hand, so that a potential difference is generated between the electrodes, and the nano-generator 4 supplies power to the laser lamp 3. Accordingly, when the nano-generator 4 is another type of generator, the operation mode is changed accordingly to accommodate the different types of nano-generators 4.

The mounting structure 2 may be a groove for receiving chalk, a clip for holding chalk, or a sleeve for wrapping chalk.

The operation body may be a person or a robot, and the operation body may interact with the chalk installer.

The material of the main body 1 is a solid material such as acryl, glass, resin, and polycarbonate.

The chalk installer of above-mentioned structure sets up the nanometer generator 4 of being connected with the electricity of laser lamp 3, so sets up, when operating personnel is using the chalk installer in-process, the hand can produce the friction with the chalk installer between, the friction can make the both sides of nanometer generator 4 produce the potential difference, nanometer generator 4 can supply power to laser lamp 3, when operating personnel uses the chalk of installing on the chalk installer to write, laser lamp 3 can light, compare with the mode that uses the battery to supply power to laser lamp 3, can practice thrift the electric energy.

In some aspects, the nanogenerator 4 is a friction nanogenerator.

Specifically, when an operator uses the chalk mounted on the chalk mounting device, during the use process of the operator, fingers or a part of palms can rub against the electrodes of the friction nano-generator, and due to the friction electrification effect, the fingers or a part of palms and the friction electrodes respectively carry the same amount of different charges, and the fingers or a part of palms alternately move between the two electrodes, so that an alternate potential difference is induced between the two electrodes, electrons tend to alternately flow in an external circuit, and an alternating current flowing through the laser lamp 3 is formed, so that the laser lamp 3 is lightened.

By arranging the nano-generator 4 as a friction nano-generator, it is achieved that the operating body can generate electrical energy when using the chalk installer, so as to achieve conversion of mechanical energy into electrical energy.

It should be noted that any other circuit with output may be used for the friction nano-generator.

In some preferred embodiments, the friction nano-generator comprises a first electrode 41 and a second electrode 42, the first electrode 41 being arranged on the body 1; the second electrode 42 is disposed on the body 1 and insulated from the first electrode 41 by the provision of the separator 5; the operating body generates a potential difference between the first electrode 41 and the second electrode 42 by rubbing on the first electrode 41 and the second electrode 42.

Specifically, when the operating body uses the chalk installed on the chalk installer to write on the blackboard, the operating body will contact and rub with the first electrode 41 and the second electrode 42 of the chalk installer in the writing process, no potential difference exists between the first electrode 41 and the second electrode 42 in the initial state, due to the friction electrification effect, when the operating body rubs on the first electrode 41, the operating body and the first electrode 41 will carry the same amount of heterogeneous charges, and due to the charged operating body moving from the first electrode 41 to the second electrode 42 after friction, the first electrode 41 and the second electrode 42 will generate potential difference, and electrons will tend to flow in the external circuit; similarly, when the operating body rubs against the second electrode 42, the operating body and the second electrode 42 will take the same amount of heterogeneous charges, and since the operating body charged after friction moves from the second electrode 42 to the first electrode 41, the first electrode 41 and the second electrode 42 will generate opposite potential differences, tending to make electrons flow in opposite directions in the external circuit; the operating body alternately reciprocates between the first electrode 41 and the second electrode 42, thereby forming an alternating current, so that mechanical energy of friction between the operating body and the chalk installer is converted into electric energy flowing through the laser lamp 3.

When the first electrode 41 and the second electrode 42 supply electric power to the laser lamp 3, the first electrode 41 and the second electrode 42 correspond to positive and negative electrodes of the power supply, and the separator 5 is disposed between the first electrode 41 and the second electrode 42, so that the first electrode 41 and the second electrode 42 are prevented from being in contact.

When the operating body writes with the chalk mounted on the chalk mounting device, the two electrodes are arranged to increase the variation of the potential difference during friction electrification and the discharge capacity of the friction nano generator, so that the brightness of the laser lamp 3 is ensured when the laser lamp 3 is used.

The friction nano generator may be formed by coating a polymer film with strong electron attraction such as PTFE or FEP on the first electrode 41 and the second electrode 42, so as to enhance the friction and play a role in electrification, thereby increasing the electric energy output of the independent layer type friction nano generator.

Of course, an electrode may be provided to supply the laser lamp 3 with electric energy by means of a potential difference between the electrode and the ground upon triboelectrification.

In some embodiments, a rectifier bridge 6 is disposed in a connection circuit between the laser lamp 3 and the nano-generator 4, and the rectifier bridge 6 is configured to convert the alternating current generated by the first electrode 41 and the second electrode 42 into direct current.

Specifically, referring to the arrangement of the rectifier in fig. 2, when the operation body uses the chalk mounted on the chalk holder, the operation body alternately reciprocates on the two electrodes of the chalk holder, and electrons alternately move in the external circuit, thereby forming an alternating current.

Here, the rectifier bridge 6 is provided in the external circuit connecting the laser lamp 3 and the nano-generator 4, so that the alternating current generated by the first electrode 41 and the second electrode 42 is converted into direct current, and the laser lamp 3 is continuously turned on.

In some embodiments, a capacitor 7 is disposed in the connection circuit between the laser lamp 3 and the nano-generator 4, and the capacitor 7 can store the current generated by the first electrode 41 and the second electrode 42 and can supply power to the laser lamp 3.

Specifically, referring to the arrangement of the capacitor 7 in fig. 2, the capacitor 7 is connected in parallel with the laser lamp 3, the nano-generator 4 is connected with the rectifier to change the alternating current into direct current, and the nano-generator 4 and the rectifier are regarded as a whole, and the whole is connected in parallel with the capacitor 7 and the laser lamp 3.

When the operating body uses chalk installed on the chalk installer to write, the nano generator 4 is used for supplying power to the laser lamp 3, and when the generated energy of the nano generator 4 is insufficient, the capacitor 7 can discharge to the laser lamp 3 so as to ensure the brightness of the laser lamp 3; and the capacitor 7 can also store the electric quantity emitted by the nano-generator 4.

In some aspects, the first electrode 41 and the second electrode 42 are annular structures, and the first electrode 41 and the second electrode 42 are each disposed along the circumferential direction of the body 1.

Specifically, the first electrode 41 and the second electrode 42 are both in ring-shaped structures, the body 1 is in a cylindrical structure, the first electrode 41 and the second electrode 42 are sleeved on the body 1 of the chalk installer, and the partition board 5 is arranged between the first electrode 41 and the second electrode 42.

Here, when the operation body holds the chalk installer, since the first electrode 41 and the second electrode 42 are of a ring-shaped structure, the contact area of the first electrode 41 and the second electrode 42 with the operation body is increased, and thus the power generation amount of the friction nano-generator is increased, and the brightness of the laser lamp 3 is improved.

Furthermore, the first electrode 41 and the second electrode 42 may be of other structures or otherwise provided, for example: the arrangement direction of the first electrode 41 and the second electrode 42 is the same as the length direction of the chalk installer; the first electrode 41 and the second electrode 42 are arranged in an oblique direction relative to the length direction of the chalk installer; the first electrode 41 and the second electrode 42 are of a block structure or the like.

In some aspects, the friction nano-generator includes a third electrode 43, and the operator's hand moves over the third electrode 43, causing a potential difference between the third electrode 43 and ground.

Specifically, referring to fig. 4, when writing is performed on the operating body using the chalk mounted on the chalk mounting device, due to the principle of friction electrification, the operating body rubs against the third electrode 43, the finger gets negative electrons and the third electrode 43 made of metal loses electrons, when the finger moves away from the electrode, the third electrode 43 lacks negative electrons, and the ground electrode introduces negative charges from the ground to compensate the positive charges on the metal surface, so that current occurs, and at this time, the current flows through the laser lamp 3, so that the laser lamp 3 is lighted.

Although the single-electrode friction nano-generator provided with only one third electrode 43 has a small power generation amount, the single-electrode friction nano-generator has a small structural occupation area and can reduce the whole volume of the chalk installer.

Of course, the third electrode 43 of the friction nano-generator may be covered with a polymer film with strong electron withdrawing such as PTFE or FEP, which plays a role in enhancing friction and electrification, thereby increasing the electric energy output of the independent layer type friction nano-generator.

The friction nano generator in which the separator 5 is disposed between the first electrode 41 and the second electrode 42 is referred to as a double-electrode generator, the friction nano generator of the third electrode 43 is referred to as a single-electrode generator, and any single-electrode generator and any double-electrode generator can be disposed on the chalk installer; for example: a double-electrode generator and a single-electrode generator are arranged on the chalk installer; two double-electrode generators are arranged on the chalk installer; four single-electrode generators are arranged on the chalk installer, and the like.

The materials of the first electrode 41, the second electrode 42, and the third electrode 43 are preferably copper, and may be other materials, such as: copper alloy, gold, aluminum alloy, silver alloy, iron, steel, titanium alloy, graphite, graphene, ITO and other solid conductors.

In some embodiments, the mounting structure 2 is a truncated cone-shaped groove for accommodating chalk, and an elastic member 8 capable of applying a clamping force to the chalk is arranged on the wall of the groove.

Specifically, referring to fig. 3, the mounting structure 2 is a truncated cone-shaped groove, and the opening size of the groove near the opening end is larger than the size of the internal port of the mounting structure 2, that is, the mounting structure 2 is a groove with an inward opening. A layer of elastic piece 8 is arranged on the wall of the groove, and the elastic piece 8 is stuck on the side wall of the groove.

The elastic member 8 may be made of elastic rubber or resin.

Here, by providing the elastic member 8 on the wall of the groove, when the chalk is mounted into the side wall of the groove, the groove not only limits the chalk, but also applies the pressing elastic force to the chalk positioned in the groove, so that the mounting structure 2 is more tightly connected with the chalk.

Furthermore, the elastic member 8 may have other structures, such as: the elastic piece 8 can be replaced by an adhesive piece, and the adhesive piece can adhere the chalk by adhesive force, so that the chalk arranged on the chalk installation structure 2 is firmer; while the grooves may also be of other shapes, for example: the front view of the groove is rectangular or triangular.

In some embodiments, the groove is formed at one end of the body 1, and the laser lamp 3 is located at the other end of the body 1.

Specifically, the groove is formed in one end of the cylindrical body 1 in the length direction, the laser lamp 3 is arranged at the other end of the cylindrical body 1 in the length direction, and when the operating main body writes by using chalk mounted on the chalk mounting device, the laser lamp 3 at the other end of the body 1 can be lightened to play a role in warning a person watching a blackboard.

Moreover, when only the laser lamp 3 is used, since the laser lamp 3 is located at an end facing away from the groove, it is also convenient when the laser lamp 3 is used by the operation body.

Furthermore, the laser lamp 3 may be provided at other positions of the main body, for example: the laser lamp 3 is arranged on the circumference of the main body, and the laser lamp 3 and the mounting structure 2 are arranged at the same end of the main body 1.

In some aspects, the nanogenerator 4 is a piezoelectric nanogenerator or a pyroelectric nanogenerator.

Specifically, when the nano-generator 4 is a piezoelectric nano-generator, the electrode is set to be zinc oxide, the bending and compression mechanical energy is converted into electric energy by utilizing the piezoelectric property and the semiconductor property of the zinc oxide which are special nano materials, and when the operation main body works by using the chalk installer, the chalk installer is clamped by applying pressure to the chalk installer, and the bending and compression mechanical energy can be converted into electric energy by applying pressure to the zinc oxide electrode, so that the laser lamp 3 is lightened.

Correspondingly, when the nano generator 4 is a pyroelectric nano generator, the pyroelectric nano generator can convert external heat energy into electric energy by using a pyroelectric material with a nano structure, an operator holds the chalk installer with hands at a temperature, and the heat energy is converted into electric energy, so that the laser lamp 3 is lighted.

In some schemes, the chalk installer further comprises a connecting shaft (not shown) penetrating through the centers of a fourth electrode (not shown) and a fifth electrode (not shown), the fourth electrode and the fifth electrode can rotate along the connecting shaft, the surfaces of the fourth electrode and the fifth electrode are respectively provided with a film, but the two film materials have different electron losing capacities, or a layer of film is only arranged between the fourth electrode and the fifth electrode, and the fourth electrode and the fifth electrode are directly used for friction electrification with the films.

Specifically, when the operating body writes with chalk mounted on the chalk mounter, the operating body contacts the fourth electrode and the fifth electrode, which are rotated along the connection shaft, respectively, and the fourth electrode and the fifth electrode rub against each other, thereby generating electric power, and thus the laser lamp 3 is lighted.

The basic principles of the present utility model have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present utility model are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present utility model. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the utility model is not necessarily limited to practice with the above described specific details.

The block diagrams of the devices, apparatuses, devices, systems referred to in the present utility model are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.

It is also noted that in the apparatus, devices and methods of the present utility model, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present utility model.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present utility model is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

It should be understood that the terms "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present utility model are used for more clearly describing the technical solutions, and are not intended to limit the scope of the present utility model.

The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the utility model to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims

1. A chalk installer, comprising:

the chalk comprises a body with a chalk installation structure;

the laser lamp is arranged on the body;

the friction nano generator is arranged on the body and is electrically connected with the laser lamp; the friction nano generator comprises a first electrode and a second electrode, and the first electrode is arranged on the body; the second electrode is arranged on the body and is insulated from the first electrode by a separator; an operation body that generates a potential difference between the first electrode and the second electrode by rubbing on the first electrode and the second electrode;

the connecting circuit of the laser lamp and the friction nano generator is provided with a rectifier bridge, the rectifier bridge is used for converting alternating current generated by the first electrode and the second electrode into direct current, and the operating main body can enable the friction nano generator to provide electric energy for the laser lamp by operating the friction nano generator.

2. The chalk installer of claim 1, wherein a capacitor is provided in a connection circuit of the laser lamp and the friction nano generator, the capacitor being capable of storing a current generated by the first electrode and the second electrode and supplying power to the laser lamp.

3. The chalk installer of claim 1, wherein said first and second electrodes are annular structures, said first and second electrodes each being disposed along a circumferential direction of said body.

4. The chalk installer of claim 1, wherein the friction nano-generator comprises a third electrode over which an operator's hand moves, causing a potential difference to be created between the third electrode and ground.

5. The chalk installer according to claim 1, wherein the installation structure is a truncated cone-shaped groove for accommodating the chalk, and an elastic member capable of applying a clamping force to the chalk is provided on a wall of the groove.

6. The chalk installer of claim 5, wherein said recess is formed in one end of said body and said laser light is located at the other end of said body.