CN219846850U

CN219846850U - dental handpiece

Info

Publication number: CN219846850U
Application number: CN202320805002.2U
Authority: CN
Inventors: 李欣悦; 卫光曦; 杨刚; 李玉双
Original assignee: Chongqing Duole Medical Management Co ltd
Current assignee: Chongqing Duole Medical Management Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-10-20
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a dental handpiece which comprises a handpiece and a handpiece body, wherein an LED lamp set is assembled on the handpiece body. The machine body is internally provided with a pneumatic direct current generator and a manual rheostat, the positive electrode of the pneumatic direct current generator is connected with the positive electrode of the LED lamp set through the manual rheostat, and the negative electrode of the LED lamp set is connected with the negative electrode of the pneumatic direct current generator. When compressed air is injected into the dental handpiece, the compressed air can drive the pneumatic direct-current generator to generate electricity, so that the LED lamp set can emit electricity. Medical staff can be according to the illumination condition of medical environment, through manual varistor manual transformation LED lamp series connection's resistance size to change the input voltage size of LED lamp, and then change the light colour of LED lamp.

Description

Dental handpiece

Technical Field

The utility model relates to the technical field of dental tools or instruments, in particular to a dental handpiece.

Background

The dental handpiece is a medical instrument specially used for dentistry, and can be used for cleaning teeth, grinding bad teeth and the like. The dental handpiece mainly comprises a handpiece and a body, and in order to facilitate a dentist to observe the tooth condition in the oral cavity of a patient, most dental handpieces are currently provided with LED lamps serving as light supplementing lamps.

For example, patent publication number CN202714933U discloses a dental handpiece quick connector with a generator, which is matched and inserted in a handle of a dental handpiece, and comprises a vapor connector, a micro generator, a shell body and a plug body. The water vapor connector is connected to the tail end of the shell body, and an air return pipe, an atomization pipe and an air inlet pipe are connected to the water vapor connector. The shell body is internally provided with a generator accommodating cavity matched with the miniature generator, and an air passage pipe which is respectively communicated with the air return pipe, the atomizing pipe and the air inlet pipe is arranged between the generator accommodating cavity and the shell body. The plug body is located the front end of casing body and holds the chamber with the generator and is connected, and the microgenerator passes through the wire and is connected with the plug body, and the front end of plug body is pegged graft with the lamp holder of LED lamp. The dental handpiece quick connector with the generator is matched and inserted into the handle of the dental handpiece, meets the use requirement of the dental handpiece, and can provide power for the LED lamp arranged on the dental handpiece.

Medical research shows that the yellow light is softer and less irritating to eyes. Therefore, under sufficient illumination, selecting yellow light may be better for the doctor's eye. In contrast, in the case of weak light, if yellow light is used, eye fatigue is easily caused, and therefore, in this case, selecting white light is preferable for eyes of doctors.

Therefore, when a dentist uses the dental handpiece to treat, the light color of the LED lamp assembled on the dental handpiece can be changed according to the illumination change condition of the medical environment, so that eyes of the dentist can be protected. However, most dental handpieces equipped with LED lamps at present do not adopt a technical means capable of changing the light color of the LED lamp as in the technical solutions described in the above-mentioned patents.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a dental handpiece which can change the light color of an LED lamp assembled by the dental handpiece. The specific technical scheme is as follows:

in a first aspect, there is provided a dental handpiece comprising:

the machine head and the machine body are provided with an LED lamp set, and a pneumatic direct current generator is arranged in the machine body;

the LED lamp set also comprises a manual rheostat which is connected in series in a power supply loop between the pneumatic direct-current generator and the LED lamp set.

With reference to the first aspect, in a first implementation manner of the first aspect, the manual varistor is a rotary varistor, and a knob of the rotary varistor is disposed on the body.

In a second aspect, there is provided a dental handpiece comprising:

the positive electrode of the pneumatic direct current generator is connected with two resistors with different resistance values in parallel through a change-over switch, and the two resistors are connected with the negative electrode of the pneumatic direct current generator through the LED lamp group.

With reference to the second aspect, in a first implementation manner of the second aspect, the power supply further includes a manual varistor, the pneumatic dc generator is connected to the manual varistor through a change-over switch, and the manual varistor is connected to a negative electrode of the pneumatic dc generator through the LED lamp set.

With reference to the first implementation manner of the second aspect, in a second implementation manner of the second aspect, the switch is a single-pole three-throw switch, a main contact of the single-pole three-throw switch is connected with the positive pole of the pneumatic direct current generator, and three movable contacts are respectively connected with the positive pole of the LED lamp set through two resistors with different resistance values and a manual rheostat.

In a third aspect, there is provided a dental handpiece comprising:

aircraft nose is provided with LED banks, still includes:

the LED lamp set comprises a machine body, wherein a power interface is arranged, the power interface comprises a positive electrode end and a negative electrode end, the positive electrode end is connected with two resistors with different resistance values in parallel through a change-over switch, and the two resistors are connected with the negative electrode end through the LED lamp set.

With reference to the first implementation manner of the third aspect, in a first implementation manner of the third aspect, the device further includes an electronically controlled varistor, the positive terminal is connected to the electronically controlled varistor through a change-over switch, and the electronically controlled varistor is connected to the negative terminal through the LED lamp set.

With reference to the first implementation manner of the third aspect, in a second implementation manner of the third aspect, the switch is a single-pole three-throw switch, a main contact of the single-pole three-throw switch is connected to the positive electrode end, and three movable contacts are respectively connected to the positive electrode of the LED lamp set through two resistors with different resistance values and an electronically controlled rheostat.

The beneficial effects are that: by adopting the dental handpiece, the series resistance of the LED lamp group assembled on the dental handpiece can be switched by the set change-over switch or the rheostat, so that the voltage of the LED lamp group is changed, and the light color of the LED lamp is changed, thereby protecting eyes of a dental doctor.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

FIG. 1 is a schematic view of a dental handpiece according to an embodiment of the present utility model;

FIG. 2 is a front view of the dental handpiece of FIG. 1;

FIG. 3 is a schematic view of a dental handpiece according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a dental handpiece according to an embodiment of the present utility model;

reference numerals:

the device comprises a machine head, a machine body, a 3-manual rheostat, a 4-LED lamp, a 5-change-over switch and a 6-power interface.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It should be understood that, in this embodiment, the LED lamp 4 is a tricolor LED, and by changing the input voltage of the LED lamp 4, the light emitting brightness of each light emitting chip in the LED lamp 4 can be changed, so as to change the brightness ratio of the three primary colors of red, green and blue, and further prepare different light colors.

Example 1

A schematic structural view of a dental handpiece as shown in fig. 1, the dental handpiece comprising:

the machine comprises a machine head 1 and a machine body 2, wherein an LED lamp set is arranged on the machine head 1, and a pneumatic direct current generator is arranged in the machine body 2;

the LED lamp set also comprises a manual rheostat 3, wherein the manual rheostat 3 is connected in series in a power supply loop between the pneumatic direct-current generator and the LED lamp set.

Specifically, as shown in fig. 1 and 2, the dental handpiece includes a handpiece 1 and a body 2, and an LED lamp group including a plurality of LED lamps for light supplement is mounted on the handpiece 1. The miniature pneumatic direct current generator is arranged in the machine body 2, the installation position and the connection structure of the pneumatic direct current generator are the same as those of the existing dental handpiece provided with the pneumatic generator, and the pneumatic direct current generator is not repeated here. A manual rheostat 3 is arranged in the machine body 2, the positive poles of the pneumatic direct current generator are connected with the positive poles of all the LED lamps 4 through the manual rheostat 3, and the negative poles of all the LED lamps 4 are connected with the negative pole of the pneumatic direct current generator.

When compressed air is injected into the dental handpiece, the compressed air can drive the pneumatic direct-current generator to generate electricity, so that the LED lamp set can emit electricity. The medical staff can manually change the series resistance of the LED lamps 4 through the manual rheostat 3 according to the illumination condition of the medical environment, so that the input voltage of the LED lamps 4 is changed, and the light color of the LED lamps 4 is changed. For example, a typical LED lamp 4 may emit yellow light at an input voltage of 2V and may emit white light at an input voltage of 3.6V. Furthermore, the LED lamp group can emit light with various colors by adjusting the manual rheostat 3 so as to attract the attention of children.

In this embodiment, the manual rheostat 3 is a rotary rheostat, and a knob of the rotary rheostat is disposed on the machine body 2. The knob of the rotary rheostat can be arranged on the body 2 of the dental handpiece so that the medical staff can change the resistance of the series connection of the LED lamps 4 by rotating the knob.

Example two

A schematic of a dental handpiece, as shown in fig. 3, comprising:

the positive electrode of the pneumatic direct current generator is connected with two resistors with different resistance values in parallel through a change-over switch 5, and the two resistors are connected with the negative electrode of the pneumatic direct current generator through the LED lamp group.

Specifically, the dental handpiece includes a handpiece 1 and a body 2, and an LED lamp group composed of a plurality of LED lamps for light supplement is mounted on the handpiece 1. The miniature pneumatic direct current generator is arranged in the machine body 2, the installation position and the connection structure of the pneumatic direct current generator are the same as those of the existing dental handpiece provided with the pneumatic generator, and the pneumatic direct current generator is not repeated here.

The pneumatic direct current generator is connected with a change-over switch 5, and the change-over switch 5 comprises an input end and three output ends. The input end is connected with the positive electrode of the pneumatic direct current generator, the two input ends are respectively connected with the positive electrode of each LED lamp 4 through two resistors with different resistance values, and the negative electrode of each LED lamp 4 is connected with the negative electrode of the pneumatic direct current generator to form a power supply loop.

In this embodiment, the resistance values of the two resistors may be set according to the corresponding input voltages when the LED lamp 4 emits yellow light and white light, respectively. Therefore, the resistance value of the series resistor between the anode of the LED lamp 4 and the anode of the pneumatic direct current generator can be switched through the switch 5, so that the input voltage of the LED lamp 4 is changed, and the luminous color of the LED lamp 4 is changed.

In this embodiment, the switch 5 is a single-pole three-throw switch, and a main contact of the single-pole three-throw switch is connected to the positive electrode of the pneumatic dc generator, where two movable contacts may be connected to the positive electrode of the LED lamp set through two resistors with different resistance values respectively. The rest movable contact can be connected with the anode of the LED lamp set through the manual rheostat 3.

Therefore, when the single-pole three-throw switch is manually switched to be connected with the resistor corresponding to yellow light, the LED lamp group can emit yellow light. The single-pole three-throw switch is manually switched to be connected with the resistor corresponding to the white light, and the LED lamp 4 can emit the white light. When the single-pole three-throw switch is manually switched to be connected with the manual rheostat 3, the LED lamp 4 can emit light with various colors by rotating the manual rheostat 3 so as to attract the attention of children.

Example III

A schematic of a dental handpiece, as shown in fig. 4, comprising:

aircraft nose 1 is provided with LED banks, still includes:

the machine body 2 is provided with a power interface 6, the power interface 6 comprises a positive electrode end and a negative electrode end, the positive electrode end is connected with two resistors with different resistance values in parallel through a change-over switch 5, and the two resistors are connected with the negative electrode end through the LED lamp group.

Specifically, the dental handpiece includes a handpiece 1 and a body 2, and an LED lamp group composed of a plurality of LED lamps for light supplement is mounted on the handpiece 1. The machine body 2 is provided with a power interface 6 and a change-over switch 5, and the power interface 6 can be externally connected with a direct current power supply through a power line.

The power interface 6 comprises a positive terminal and a negative terminal, the positive terminal being connected to the change-over switch 5. In this embodiment, the change-over switch 5 is a single-pole three-throw switch, and the main contact of the single-pole three-throw switch is connected to the positive terminal, where two movable contacts may be respectively connected to one ends of two resistors with different resistance values, the other ends of the two resistors may be connected to the positive terminal of each LED lamp 4, and the negative terminal of each LED lamp 4 is connected to the negative terminal of the power interface 6, so as to form a power supply loop.

The rest movable contact can be connected with the anode of the LED lamp set through an electric control rheostat, the electric control rheostat comprises a miniature direct current motor and a potentiometer, the power end of the direct current motor is connected between the movable contact connected with the electric control rheostat and the cathode end in series, and the potentiometer is connected between the movable contact and the LED lamp set in series.

When the main contact of the single-pole three-throw switch is conducted with the movable contact of the resistor corresponding to the connection yellow light, the LED lamp set can emit the yellow light. When the main contact of the single-pole three-throw switch is conducted with the movable contact of the resistor corresponding to the white light, the LED lamp set can emit the white light.

When the main contact of the single-pole three-throw switch is conducted with the movable contact connected with the electric control rheostat, the direct current motor can drive the potentiometer to automatically change the resistance of the serial connection of the LED lamp group under the action of the direct current power supply, so that the LED lamp 4 automatically changes the color of emitted light to attract the attention of children.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. A dental handpiece comprising:

the method is characterized in that: the LED lamp set also comprises a manual rheostat which is connected in series in a power supply loop between the pneumatic direct-current generator and the LED lamp set.

2. The dental handpiece of claim 1, wherein the manual rheostat is a rotary rheostat having a knob disposed on the body.

3. A dental handpiece comprising:

the method is characterized in that: the positive electrode of the pneumatic direct current generator is connected with two resistors with different resistance values in parallel through a change-over switch, and the two resistors are connected with the negative electrode of the pneumatic direct current generator through the LED lamp group.

4. A dental handpiece according to claim 3, further comprising a manual varistor, the pneumatic dc generator being connected to the manual varistor via a switch, the manual varistor being connected to the negative pole of the pneumatic dc generator via the LED light string.

5. The dental handpiece of claim 4, wherein the switch is a single pole three throw switch having a main contact connected to the positive pole of the pneumatic dc generator and three movable contacts connected to the positive pole of the LED light set via two resistors of different resistance values and a manual varistor, respectively.

6. A dental handpiece comprising:

aircraft nose is provided with LED banks, and its characterized in that still includes:

7. The dental handpiece of claim 6, further comprising an electronically controlled varistor, the positive terminal being connected to the electronically controlled varistor via a switch, the electronically controlled varistor being connected to the negative terminal via the LED light bank.

8. The dental handpiece of claim 7, wherein the switch is a single pole three throw switch having a main contact connected to the positive terminal, and three movable contacts connected to the positive terminal of the LED light set via two resistors of different resistance values and an electronically controlled varistor, respectively.