CN216318072U

CN216318072U - Flexible shaft driving type low-noise mobile phone for department of stomatology

Info

Publication number: CN216318072U
Application number: CN202122786284.XU
Authority: CN
Inventors: 庞海阔; 朱艳丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-19
Anticipated expiration: 2031-11-15

Abstract

The utility model relates to the technical field of medical instruments, relates to a medical instrument for department of stomatology, and particularly relates to a flexible shaft driven type low-noise mobile phone for department of stomatology. The driving device rotates, the bevel gear is driven to rotate through the flexible shaft, and the needle is driven to rotate through the driven bevel gear, so that the needle works. The flexible shaft is a shaft which can transmit torque between two non-parallel shafts and can be bent. A hole is arranged in the handle, the first end of the inner hole of the handle is communicated with the cavity in the handpiece, the second end of the inner hole of the handle is through, and the flexible shaft passes through the hole in the handle and extends out of the second end of the inner hole of the handle. The soft sleeve is sleeved outside the flexible shaft, the first end of the soft sleeve is fixedly connected with the second end of the inner hole of the handle, the connecting sleeve is fixedly connected with the shell of the driving device, the second end of the soft sleeve is fixedly connected with the connecting sleeve, and the soft sleeve can be bent and can resist the rotating torque. The head of the present invention has small volume and low noise.

Description

Flexible shaft driving type low-noise mobile phone for department of stomatology

Technical Field

The utility model relates to the technical field of medical instruments, relates to a medical instrument for department of stomatology, and particularly relates to a flexible shaft driven type low-noise mobile phone for department of stomatology.

Background

The traditional mobile phone for the department of stomatology comprises a shell, a needle, a pneumatic motor or a motor, wherein if the pneumatic motor is used, the pneumatic motor also needs to comprise an air guide pipe, if the motor is used, the air guide pipe also needs to comprise an electric lead, the shell comprises a machine head and a handle, the pneumatic motor or the motor is arranged in a cavity of the machine head, and the needle is fixed on an output shaft of the pneumatic motor or the motor. When the pneumatic needle is used, the pneumatic motor or the motor rotates to drive the needle to rotate.

However, the dental mobile phone has a large volume, and the driving devices such as the pneumatic motor or the motor have a large volume, so that the size of the head of the dental mobile phone is large, the space in the oral cavity is limited, and a patient needs to stretch a large mouth for a long time during seeing a doctor, so that the muscle of the face is tired; the large head volume can also result in severe obstruction to the operator's view; on the other hand, the pneumatic motor or the motor has higher noise when working, the teeth of the patient are painful when being diagnosed, and the patient feels more vexed due to the noise listening.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the flexible shaft driven type low-noise dental handpiece with small size of the handpiece part and low noise.

In order to achieve the purpose, the utility model provides the following technical scheme:

a flexible shaft driven low-noise mobile phone for department of stomatology comprises a needle, a shell and a driving device; the shell comprises a machine head and a handle which are connected into a whole, and a cavity is arranged in the machine head; a needle outlet hole is formed in one side of the cavity in the machine head, and a needle extends out of the needle outlet hole;

the device also comprises a driving bevel gear, a first bearing, a driven bevel gear, a second bearing, a flexible shaft and a driving device;

the driving bevel gear is installed in a cavity in the machine head through a first bearing, the driven bevel gear is installed in the cavity in the machine head through a second bearing, the driving bevel gear is meshed with the driven bevel gear, the handle part of the needle is fixedly connected with the driven bevel gear, and the working end of the needle extends out through a needle outlet hole; the first end of the flexible shaft is fixedly connected with the driving bevel gear; the second end of the flexible shaft is connected with an output shaft of the driving device. The driving device rotates, the bevel gear is driven to rotate through the flexible shaft, and the needle is driven to rotate through the driven bevel gear, so that the needle works. The flexible shaft is a shaft which can transmit torque between two non-parallel shafts and can be bent.

The flexible axle can be followed hand (hold) one side and passed through, but can cause the skin friction in with the patient oral cavity when the flexible axle is rotatory like this, perhaps with the skin friction of operator hand, light then feel uncomfortable, heavy then lead to the scotch, so can not let the flexible axle with the skin direct contact of patient oral cavity skin or operator hand, set up the hole in the hand (hold), the first end of hand (hold) hole and the cavity intercommunication in the aircraft nose, the second end of hand (hold) hole is penetrating, the flexible axle passes through the hole in the hand (hold), stretch out at the second end of hand (hold) hole, just so can avoid the skin direct contact of flexible axle and patient oral cavity skin or operator hand.

The flexible shaft is required to rotate at the section between the handle and the output shaft of the driving device, the flexible shaft is generally longer, the length is half a meter, the length can be two or three meters, the rotating flexible shaft is exposed outside and can scratch surrounding objects, such as paint on a seat of a patient can be wiped off, the flexible shaft can be wound by the flexible shaft and cannot continue to work, in order to avoid the situation, the flexible shaft type electric hand-operated tool is further provided with a flexible sleeve and a connecting sleeve, the flexible sleeve is sleeved outside the flexible shaft, the first end of the flexible sleeve is fixedly connected with the second end of an inner hole of the handle, the connecting sleeve is fixedly connected with a shell of the driving device, the second end of the flexible sleeve is fixedly connected with the connecting sleeve, the flexible sleeve can be bent, and the rotating torque can also be resisted.

The flexible shaft and the flexible sleeve are respectively the flexible shaft and the flexible pipe which are published by a chemical industry publisher and compiled by Dada headman in the fifth edition of

mechanical design Manual

2, 6 th to 41 nd page 2.1. The selected size of the flexible shaft and the soft sleeve meets the requirements in the section table 6-1-52 selection size of flexible shafts and hoses.

The driving device refers to a motor, a pneumatic motor, a hydraulic motor, a combination of the motor and a speed reducer, a combination of the pneumatic motor and the speed reducer or a combination of the hydraulic motor and the speed reducer.

Compared with the prior art, the utility model has the beneficial effects that: the size of the machine head part is obviously reduced, the oral cavity of a patient is placed in the machine head part during a doctor seeing period, the patient can be held without opening a large mouth, the sight of an operator cannot be shielded seriously, the driving device is far away from the oral cavity of the patient, the transmission noise of the bevel gear with good lubrication is low, and the mood of the patient cannot be troubled.

Drawings

FIG. 1 is a front full sectional view of an embodiment of the present invention;

FIG. 2 is a three-dimensional sectional view of the housing 6 and its internal structure according to the embodiment of the present invention;

in the figure:

1-driving a bevel gear; 2-a first bearing; 3-a passive bevel gear; 4-a second bearing; 5-needle turning;

6-a shell; 61-a machine head; 62-a handle; 63-lathing a needle outlet hole; 7-a flexible shaft; 8-soft sleeve; 9-a motor; 0-coupling sleeve.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A soft shaft driven low noise dental handpiece, as shown in figures 1 and 2, comprises a needle 5, a housing 6 and a motor 9; the shell 6 comprises a machine head 61 and a handle 62 which are connected into a whole, and a cavity is arranged in the machine head 61; a needle outlet 63 is formed in one side of the cavity in the machine head 61 and used for allowing a needle 5 to extend out;

the device also comprises a driving bevel gear 1, a first bearing 2, a driven bevel gear 3, a second bearing 4, a flexible shaft 7 and a motor 9;

the driving bevel gear 1 is installed in a cavity in the machine head 61 through a first bearing 2, the driven bevel gear 3 is installed in the cavity in the machine head 61 through a second bearing 4, the driving bevel gear 1 is meshed with the driven bevel gear 3, the handle part of the needle 5 is fixedly connected with the driven bevel gear 3, and the working end of the needle 5 extends out through a needle outlet 63; the first end of the flexible shaft 7 is fixedly connected with the driving bevel gear 1; the second end of the flexible shaft 7 is connected with the output shaft of the motor 9. The motor 9 rotates, the bevel gear 1 is driven to rotate through the flexible shaft 7, the needle 5 is driven to rotate through the driven bevel gear 3, and therefore the needle 5 works. The flexible shaft 7 is a shaft which can transmit torque between two non-parallel shafts and can also be bent.

Flexible axle 7 can pass through from hand (hold) 62 one side, but flexible axle 7 can cause the skin friction in with the patient oral cavity when rotatory like this, or with the skin friction of operator's hand, light then feel uncomfortable, it is heavy then to lead to the scotch, so can not let the skin direct contact of skin or operator's hand in flexible axle 7 and the patient oral cavity, set up the hole in hand (hold) 62, the first end of hand (hold) 62 hole and the cavity intercommunication in aircraft nose 61, the second end of hand (hold) 62 hole is penetrating, flexible axle 7 passes through the hole in hand (hold) 62, the second end at hand (hold) 62 hole stretches out, just so can avoid the skin direct contact of flexible axle 7 and patient oral cavity skin or operator's hand.

The section of the flexible shaft 7 between the handle 62 and the output shaft of the motor 9 needs to be rotated, and is generally longer, shorter is half a meter, and longer is two or three meters, the rotating flexible shaft 7 is exposed outside and can scratch surrounding objects, such as a patient's seat can be wiped off with paint, and the flexible shaft can be wound by itself and cannot continue to work, in order to avoid the situation, the embodiment is further provided with a flexible sleeve 8 and a coupling sleeve 0, the flexible sleeve 8 is sleeved outside the flexible shaft 7, the first end of the flexible sleeve 8 is fixedly connected with the second end of the inner hole of the handle 62, the coupling sleeve 0 is fixedly connected with the shell of the motor 9, the second end of the flexible sleeve 8 is fixedly connected with the coupling sleeve 0, and the flexible sleeve 8 can be bent and can resist the rotation torque.

The flexible shaft 7 and the flexible sleeve 8 respectively refer to a flexible shaft and a flexible pipe which are published by a chemical industry publisher, edited by Dazaihuai Daihuai, in the fifth edition of

mechanical design Manual

2, 6 th to 41 nd page 2.1. The matching size of the flexible shaft 7 and the flexible sleeve 8 meets the requirements in the section table 6-1-52 'flexible shaft and hose matching size'.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A flexible shaft driven low-noise mobile phone for department of stomatology comprises a needle, a shell and a driving device; the shell comprises a machine head and a handle which are connected into a whole, and a cavity is arranged in the machine head; a needle outlet is arranged on one side of the inner cavity of the machine head;

the device is characterized by also comprising a driving bevel gear, a first bearing, a driven bevel gear, a second bearing, a flexible shaft and a driving device;

the driving bevel gear is installed in a cavity in the machine head through a first bearing, the driven bevel gear is installed in the cavity in the machine head through a second bearing, the driving bevel gear is meshed with the driven bevel gear, the handle part of the needle is fixedly connected with the driven bevel gear, and the working end of the needle extends out through a needle outlet hole; the first end of the flexible shaft is fixedly connected with the driving bevel gear; the second end of the flexible shaft is connected with an output shaft of the driving device.

2. The flexible shaft driven low noise dental handpiece of claim 1, wherein the handle has a bore formed therein, a first end of the bore of the handle is in communication with the cavity of the handpiece, a second end of the bore of the handle is open, and the flexible shaft extends through the bore of the handle and out of the second end of the bore of the handle.

3. The flexible shaft driven low noise dental handpiece of claim 2, further comprising a flexible sleeve and a coupling sleeve, wherein the flexible sleeve is sleeved outside the flexible shaft, a first end of the flexible sleeve is fixedly coupled to a second end of the inner hole of the handle, the coupling sleeve is fixedly coupled to the housing of the driving device, and the second end of the flexible sleeve is fixedly coupled to the coupling sleeve.

4. A flexible shaft driven low noise dental handpiece as claimed in claim 1, 2 or 3, wherein the driving means is an electric motor, a pneumatic motor, a hydraulic motor, a combination of an electric motor and a speed reducer, a combination of a pneumatic motor and a speed reducer, or a combination of a hydraulic motor and a speed reducer.