CN112754687A

CN112754687A - Rotatable dental handpiece

Info

Publication number: CN112754687A
Application number: CN202011611382.3A
Authority: CN
Inventors: 余礼建
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-05-07
Anticipated expiration: 2040-12-30
Also published as: CN112754687B

Abstract

The invention relates to a rotatable dental handpiece comprising: the mobile phone comprises a rotary machine head, a rotary mechanism, a connector and a handle, wherein one end of the rotary machine head is provided with a mobile phone core; the other end of the rotating machine head is provided with a rotating table, and a plurality of rotating holes are formed in the rotating table; one end of the rotating mechanism is provided with a rotating seat, and a positioning hole and a positioning pin are arranged in the rotating mechanism; the connector comprises a fixed end and a rotating end which are connected with each other, the end parts of a first air channel, a first water channel, a first air channel and a first air return channel on the connector are respectively positioned at the fixed end and the rotating end, and the rotating platform is provided with a second air channel connected with the first air channel and a water mist channel; the handle is internally provided with a driving air inlet, a cleaning water inlet, an atomized air inlet and an air return outlet. The rotating mechanism is matched with the connector, the angle between the handpiece and the handle can be changed, and the angle of the handpiece can be adjusted according to different use requirements of doctors so as to perform the operation of grinding or extracting teeth.

Description

Rotatable dental handpiece

Technical Field

The invention relates to the technical field of medical equipment, in particular to a rotatable dental handpiece.

Background

The high-speed turbine dental handpiece is suitable for holding a high-speed dental bur for operations such as drilling, grinding teeth and the like in stomatology department or oral outpatient service in hospitals. The existing dental handpiece special for tooth extraction requires that a handle is designed to be linear according to the operation requirements of a doctor, but a handpiece needs to be designed to be in a 45-degree angle shape, so that the doctor can conveniently observe the dental handpiece and can conveniently extract teeth. However, the view angle of the doctor is affected because the handpiece is tightly attached to the handle. In order to solve the problems, the connecting neck is designed for the dental handpiece, so that the problem that the visual angle of a doctor is influenced is solved; however, the mobile phone still has single function, the handpiece is fixed and can not rotate, and the mobile phone can only be used for tooth extraction.

Disclosure of Invention

Technical problem to be solved

In view of the above disadvantages and shortcomings of the prior art, the present invention provides a rotatable dental handpiece, which aims to solve the problem that the operation of each part of the oral cavity is difficult due to the fact that the handpiece of the existing dental handpiece cannot rotate.

(II) technical scheme

In order to achieve the above object, an embodiment of the present invention provides a rotatable dental handpiece, including:

the mobile phone comprises a rotary machine head, a mobile phone core and a mobile phone handle, wherein one end of the rotary machine head is provided with the mobile phone core; the other end of the rotating machine head is provided with a rotating table, and a plurality of rotating holes are formed in the rotating table;

the positioning device comprises a rotating mechanism, a positioning pin and a positioning pin, wherein a rotating seat is arranged at one end of the rotating mechanism, a positioning hole and the positioning pin are arranged in the rotating mechanism, one end of the positioning pin can be telescopically arranged in the positioning hole, and the other end of the positioning pin can be clamped in the rotating hole;

the connector comprises a fixed end and a rotating end which are connected with each other, the fixed end is arranged on the rotating base, the rotating table is arranged on the rotating end, a first air channel, a first water channel, a first air channel and a first air return channel are arranged on the connector, the end parts of the first air channel, the first water channel, the first air channel and the first air return channel are respectively positioned at the fixed end and the rotating end, and a second air channel, a water mist channel and a second air return channel are arranged on the rotating table; the second air channel is connected with the first air channel, the water fog channel is connected with the first water channel and the first air channel, and the second air return channel is connected with the second air return channel;

the handle is connected with the other end of the rotating mechanism, a driving air inlet, a cleaning water inlet, an atomized air inlet and an air return outlet are arranged in the handle, the driving air inlet is connected with the first air channel, the cleaning water inlet is connected with the first water channel, the atomized air inlet is connected with the first air channel, and the air return outlet is connected with the first air return channel.

Preferably, the rotating mechanism is further provided with an angle button switch, a chute is formed in the positioning pin, and the bottom of the angle button switch is in contact with the side edge of the chute and can slide on the chute.

Preferably, the bottom of the angle button switch is provided with a bevel edge, and the bevel edge is matched with the side edge of the bevel groove.

Preferably, a first elastic member is disposed between the angle button switch and the rotating mechanism.

Preferably, the positioning pin and the bottom of the positioning hole are provided with a second elastic piece.

Preferably, the rotary base comprises a rotary column, a rotary groove is formed between the rotary column and the rotary base, the driving air inlet, the cleaning water inlet, the atomizing air inlet and the return air outlet are all arranged in the rotary groove, and the bottom of the connector is arranged in the rotary groove.

Preferably, the rotatable dental handpiece further comprises a handpiece fixing screw, and the handpiece fixing screw passes through the rotatable handpiece and the connector and is clamped in the rotating column.

Preferably, a mixing tank is arranged on the connector, the outlets of the first water channel and the first air channel are arranged in the mixing tank, and the inlet of the water mist channel is arranged in the mixing tank.

Preferably, a sealing ring is arranged between the rotary machine head and the mixing tank.

(III) advantageous effects

The invention has the beneficial effects that: according to the rotatable dental handpiece, the rotating mechanism is matched with the connector, so that compared with the prior art, the angle between the handpiece and the handle can be changed, and the purpose that the angle of the handpiece can be adjusted according to different use requirements of doctors so as to carry out tooth grinding or tooth extraction is achieved.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a rotatable dental handpiece of the present invention;

FIG. 2 is an exploded view of FIG. 1;

figure 3 is a cross-sectional view of the rotary mechanism and connector of figure 1;

FIG. 4 is a schematic view of the alignment pin of FIG. 1 engaged with the angle button;

fig. 5 is a schematic perspective view of the rotary mechanism of fig. 1;

FIG. 6 is a perspective view of the connector of FIG. 2;

FIG. 7 is a perspective view of the connector of FIG. 2 from another perspective;

fig. 8 is a schematic structural view of the turntable in fig. 1.

[ description of reference ]

1: rotating the machine head; 2: a mobile phone core; 3: a connector; 4: a handle; 5: positioning pins; 6: rotating the hole; 7: a push button switch; 8: a chute; 9: a first elastic member; 10: a second elastic member;

11: a spin column; 12: a screw is fixed on the machine head; 13: a rotating tank; 14: a seal ring; 15: a mixing tank;

20: a first air passage; 21: a first water passage; 22: a first gas passage; 23: a first air return passage; 24: a second air passage; 25: a water mist channel; 26: a second air return passage;

30: a drive gas inlet; 31: a wash water inlet; 32: an atomizing gas inlet; 33: and a return air outlet.

Detailed Description

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1, 2, 5, 6, 7 and 8, an embodiment of the present invention provides a rotatable dental handpiece comprising: a rotatable dental handpiece, comprising: a rotary handpiece 1, a rotary mechanism, a connector 3 and a handle 4.

One end of the rotary machine head 1 is provided with a mobile phone core 2; the other end of the rotary machine head 1 is provided with a rotary table, and the rotary table is provided with a plurality of rotary holes 6;

one end of the rotating mechanism is provided with a rotating seat; a positioning hole and a positioning pin 5 are arranged in the rotating mechanism, one end of the positioning pin 5 can be telescopically arranged in the positioning hole, and the other end of the positioning pin 5 can be clamped in the rotating hole 6;

in a preferred embodiment, the other end of the positioning pin 5 is clamped in the rotation hole 6 or separated from the rotation hole 6 by the telescopic movement of the positioning pin 5 in the positioning hole. When the user needs to change the angle of the rotary machine head 1, the positioning pin 5 is separated from the rotary hole 6, so that the rotary machine head 1 can rotate on the rotary seat, and the rotary machine head 1 is adjusted to achieve different angles. Simultaneously its a plurality of rotatory holes 6 then correspond a plurality of different angles, when adjusting to corresponding angle, go into corresponding rotatory hole 6 with locating pin 5 card in, then can fix the angle of rotatory aircraft nose 1. The scheme is simple to operate, and greatly facilitates the operation of tooth extraction or tooth grinding by a doctor.

The connector 3 comprises a fixed end and a rotating end which are connected with each other, the fixed end is arranged on the rotating base, the rotating platform is arranged on the rotating end, the connector 3 is provided with a first air channel 20, a first water channel 21, a first air channel 22 and a first air return channel 23, the end parts of the first air channel 20, the first water channel 21, the first air channel 22 and the first air return channel 23 are respectively positioned at the fixed end and the rotating end, and the rotating platform is provided with a second air channel, a water mist channel 25 and a second air return channel 26; the second air channel is connected with the first air channel 20, the water mist channel 25 is connected with the first water channel 21 and the first air channel 22, and the second air return channel 26 is connected with the second air return channel 26;

the handle 4 is connected with the other end of the rotating mechanism, a driving air inlet 30, a cleaning water inlet 31, an atomized air inlet 32 and an air return outlet 33 are arranged in the handle 4, the driving air inlet 30 is connected with the first air channel 20, the cleaning water inlet 31 is connected with the first water channel 21, the atomized air inlet 32 is connected with the first air channel 22, and the air return outlet 33 is connected with the first air return channel 23.

In the preferred embodiment, high pressure drive air enters the handle 4 through a drive air inlet 30 in the handle 4, and enters the first air passage 20 in the connector 3 through an air outlet in the swivel, and finally enters the handset movement 2 through the second air passage. High pressure water enters the handle 4 through a wash water inlet 31 in the handle 4 and enters the first water passage 21 of the connector 3 through a wash water outlet in the swivel. High pressure aerosol enters the handle 4 through an aerosol inlet 32 in the handle 4 and enters the first air passage 22 of the connector 3 through an aerosol outlet in the swivel. The high-pressure water and the high-pressure atomizing gas finally enter the water mist channel 25 to generate water mist, and finally the water mist is sprayed out from a water mist spraying opening on the rotary machine head 1. Meanwhile, the high-pressure gas, after being used by the rotary handpiece 1, returns to the handle 4 through the first air-return passage 23 and is finally discharged from the air-return outlet 33.

Because the connector 3 can not rotate, a plurality of air or cleaning water channels on the fixed end of the bottom of the connector 3 can be always communicated without being influenced by the angle change of the rotating table on the upper part of the connector 3. And the rotating end of the upper end is already in the rotating table, so that a plurality of gas and cleaning water channels can be connected with the gas channel on the rotating table. Therefore, the mobile phone core 2 can normally rotate and the water mist jet orifice can jet water mist no matter how to change the angle of the rotary machine head 1.

Referring to fig. 3 and 4, the rotating mechanism is further provided with an angle button switch 7, the positioning pin 5 is provided with a chute 8, and the bottom of the angle button switch 7 is in contact with the side edge of the chute 8 and can slide on the chute 8. By pressing the angle button switch 7, the positioning pin 5 slides in the positioning hole, so that the positioning pin 5 is combined with and separated from the rotating hole 6.

Further, the bottom of the angle button switch 7 is provided with a bevel edge, and the bevel edge is matched with the side edge of the chute 8. The side cooperation area of hypotenuse and chute 8 is bigger for the slip of locating pin 5 is more smooth and easy, and angle button switch 7 presses required dynamics littleer.

Wherein, a first elastic piece 9 is arranged between the angle button switch 7 and the rotating mechanism. Further, the positioning pin 5 and the bottom of the positioning hole are provided with a second elastic member 10. The first elastic piece 9 is matched with the second elastic piece 10, so that after the angle of the rotary machine head 1 is adjusted, the angle button switch 7 is loosened, and the positioning pin 5 is automatically clamped into the rotary hole 6.

Wherein, the roating seat includes the roating column 11, is formed with rotary tank 13 between roating column 11 and the roating seat, and drive air inlet 30, wash water inlet 31, atomizing gas inlet 32 and return air outlet 33 all set up in rotary tank 13, and the bottom of connector 3 sets up in rotary tank 13. In the preferred embodiment, the gas or liquid from the driving gas inlet 30, the cleaning water inlet 31, the atomizing gas inlet 32 enters the connector 3 through the rotary slot 13, and is discharged from the return gas outlet 33 after entering the rotary head 1.

Further, the rotatable dental handpiece further comprises a handpiece fixing screw 12, and the handpiece fixing screw 12 is clamped in the rotary column 11 through the rotary handpiece 1 and the connector 3. The rotary head 1 is fixed to the rotary mechanism by a head fixing screw 12.

Wherein the connector 3 is provided with a mixing tank 15, the outlets of the first water passage 21 and the first air passage 22 are provided in the mixing tank 15, and the inlet of the water mist passage 25 is provided in the mixing tank 15. In the preferred embodiment, the cleaning water and the atomizing gas are mixed into a water mist in the mixing tank 15, and a cleaning water port and an atomizing air port on the rotary table are also provided in the mixing tank 15, and the water mist passes through the rotary table and is finally ejected through a water mist ejection port on the rotary head 1.

Further, a packing 14 is provided between the rotary head 1 and the mixing tank 15. The packing 14 can seal the mist in the mixing tank 15 to prevent leakage and reduce the pressure of the mist.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" is inclusive of two or more, unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either internally, or in interactive relation with one another. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise explicitly specified or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.

Claims

1. A rotatable dental handpiece, comprising:

2. The rotatable dental handpiece of claim 1, wherein: the rotating mechanism is further provided with an angle button switch, a chute is formed in the positioning pin, and the bottom of the angle button switch is in contact with the side edge of the chute and can slide on the chute.

3. The rotatable dental handpiece of claim 2, wherein: the bottom of the angle button switch is provided with a bevel edge, and the bevel edge is matched with the side edge of the chute.

4. The rotatable dental handpiece of claim 3, wherein: a first elastic piece is arranged between the angle button switch and the rotating mechanism.

5. The rotatable dental handpiece of claim 4, wherein: and a second elastic piece is arranged at the bottom of the positioning pin and the positioning hole.

6. The rotatable dental handpiece of any one of claims 1-5, wherein:

the rotary seat comprises a rotary column, a rotary groove is formed between the rotary column and the rotary seat, the driving air inlet, the cleaning water inlet, the atomized air inlet and the air return outlet are all arranged in the rotary groove, and the bottom of the connector is arranged in the rotary groove.

7. The rotatable dental handpiece of claim 6, wherein: the rotatable dental handpiece further comprises a handpiece fixing screw, and the handpiece fixing screw penetrates through the rotatable handpiece and the connector and is clamped in the rotating column.

8. The rotatable dental handpiece of any one of claims 1-5, wherein:

be provided with the mixing tank on the connector, the export setting of first water passageway and first gas channel is in the mixing tank, the entry setting of water smoke passageway is in the mixing tank.

9. The rotatable dental handpiece of claim 8, wherein: and a sealing ring is arranged between the rotary machine head and the mixing tank.