CN201219937Y - Gas control switch of dentistry therapeutic machine - Google Patents
Gas control switch of dentistry therapeutic machine Download PDFInfo
- Publication number
- CN201219937Y CN201219937Y CNU2008200495199U CN200820049519U CN201219937Y CN 201219937 Y CN201219937 Y CN 201219937Y CN U2008200495199 U CNU2008200495199 U CN U2008200495199U CN 200820049519 U CN200820049519 U CN 200820049519U CN 201219937 Y CN201219937 Y CN 201219937Y
- Authority
- CN
- China
- Prior art keywords
- base
- driving lever
- valve body
- control switch
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a pneumatic control switch for a dental therapeutic machine, which comprises a base seat, a valve body arranged on the base seat, a deflector rod axially arranged on the base seat through the rotation of the deflector rod, a switch arranged on the base seat, a gear arranged at the non-free end of the deflector rod, and racks meshed with the gear and movably arranged on the base seat, wherein the racks are operationally linked with the valve body. The gear is used to drive the racks to rotate to change a circular motion into a straight line motion, and the distance travelled in the straight line motion propels the valve body to move, and then the gear is struck to drive the racks to move smoothly, so that the movement of the valve body can be controlled better, thus the ail flow can be controlled stably to control the rotating speed of the machine, and the operation is convenient for doctors, and the structure is simple.
Description
Technical field
This utility model relates to a kind of dental care plant control unit, relates in particular to a kind of gas control foot switch of dental unit.
Background technology
The gas control switch that the dental multipurpose therapy unit of domestic production at present is furnished with is to adopt foot-operated control mostly, but the doctor should use in therapeutic process, because can not regulate dynamic apparatus rather than very convenient.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, easy to operate dental unit gas control switch, can control the size of throughput reposefully, thereby controls the action of other elements well.
In order to solve the problems of the technologies described above, this utility model provides following technical scheme: dental unit gas control switch comprises: base, be located at valve body on the base, be located at the driving lever on the base and be located at switch on the base by the driving lever turning cylinder; Be installed on the gear on the driving lever restrain end; Establish movably with base on, the tooth bar that is meshed with gear; Described tooth bar and valve body operationally link.
According to the technical solution of the utility model, utilize the gear driven rack gear, realization transfers rectilinear motion to from circular motion, the stroke that utilizes rectilinear motion to move promotes valve body and moves, and drives tooth bar at handsetting gear and moves steadily, can move by fine application valve body like this, thereby stably control the throughput size, reach the size of control mobile phone rotating speed, make things convenient for the doctor to operate, simple in structure.
Further technical scheme is, is welded with two driving lever limited posts on the described base, and described driving lever is between these two driving lever limited posts
Increasing on base has two dead man limited posts, its objective is that the angle that prevents in that dead man is stirred in the process to be pulled exceeds actual necessary requirement.
Further technical scheme is, described base plate is provided with an elastic component stay column that is positioned at the side of gear, is provided with an elastic component between elastic component stay column and driving lever turning cylinder.
One elastic component is installed in the dead man rotating shaft, is its objective is when the gas control switch is worked driving lever is played damping action.
Description of drawings
Fig. 1 is a sketch map of the present utility model;
Fig. 2 pulls out the location drawing of certain angle for dead man in this utility model course of action;
Fig. 3 moves to the figure of maximum position for dead man in this utility model course of action.
The utility model is described in further detail below in conjunction with drawings and Examples.
The specific embodiment
As shown in Figure 1, this utility model comprises base 1, driving lever 2, gear 3, tooth bar 4, valve body 5 and switch 6.Valve body 5 is installed on the base 1 by valve body fixed support 50, and valve body fixed support 50 is connected on the base 1 by screw.Valve body 5 is connected with tooth bar 4, and tooth bar 4 is in the unlatching of moving process may command valve body 5.Tooth bar 4 is provided with chute 40, and base 1 is provided with two tooth bar sliding axles 41, and tooth bar sliding axle 41 all is positioned at chute 40, with the moving range of restriction tooth bar 4.Tooth bar 4 and gear 3 engagements, thus move by the rotation drive tooth bar 4 of gear 3, and gear 3 is installed in the end of driving lever 2 by screw.Driving lever 2 is installed on the base 1 by driving lever turning cylinder 21.Also be welded with two driving lever limited posts 20 on the base 1, driving lever 2 is between two driving lever limited posts 20.Side at gear 3 also is provided with an elastic component stay column 7, is provided with a torsion spring 70 as elastic component between elastic component stay column 7 and driving lever turning cylinder 21.In the present embodiment, torsion spring 70 1 ends are enclosed within on the elastic component stay column 7 on the base 1, elastic component stay column 7 is to be welded on the base 1, the other end of torsion spring 70 hangs in the aperture on the dead man turning cylinder 21 (not shown), a plurality of holes are arranged, the dynamics that conveniently is used for regulating torsion spring 70 on the flange of dead man turning cylinder 21.Switch 6 is located at the homonymy of a driving lever limited post 20, and contacts with dead man 2.
Below operation principle of the present utility model is further described:
During work, operator stir dead man 2 on the base 1 gently with foot, and the gear 3 on the dead man 2 drives tooth bars 4 and moves, thereby tooth bar 4 promotes valve bodies 5 motions, and then open air valve; Gas flow is to control according to the stroke that valve body 5 moves, and the stroke of valve body 5 is to be decided by the distance that tooth bar 4 moves, and the displacement of tooth bar 4 is decided by the angle that dead man 2 rotates; Simultaneously, the dead man both sides have increased by two driving lever limited posts 30 on the base 1 in this this utility model, with the stroke of this application valve body 5.The damping torsion spring 7 that is provided with on dead man turning cylinder 21 can allow it get back to initial position lentamente when foot leaves dead man 2 in addition, in order to avoid produce collision.
In sum, running part of the present utility model is the core of gas control switch, and it has adopted the gear driven rack gear, thereby has realized transferring rectilinear motion to from circular motion, the stroke that utilizes rectilinear motion to move promotes valve body and moves, thus the size of control throughput.The benefit of utilizing gear to add rack gear arrangement is: drive tooth bar at handsetting gear and move steadily, can move by fine application valve body like this, thereby control throughput size, reach the size of control mobile phone rotating speed, can make things convenient for the doctor to operate like this, thereby can realize the function of its other parts of control dental unit, simple in structure, be convenient to operation.
In addition, can also 1 time slipmat be set, when operator stir dead man 2 work with foot, can all around not move on the ground at base.
Certainly, above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model, although this utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that, still can make amendment or be equal to replacement the specific embodiment of the present utility model, and do not break away from any modification of this utility model spirit and scope or be equal to replacement, it all should be encompassed in the claim scope of the present utility model.
Claims (7)
1, dental unit gas control switch comprises:
Base, be located at valve body on the base, be located at the driving lever on the base and be located at switch on the base by the driving lever turning cylinder;
It is characterized in that, also comprise:
Be installed on the gear on the driving lever restrain end;
Establish movably with base on, the tooth bar that is meshed with gear;
Described tooth bar and valve body operationally link.
2, dental unit gas control switch according to claim 1 is characterized in that:
Described valve body is installed on the base by screw by the valve body fixed support.
3, dental unit gas control switch according to claim 1 is characterized in that:
Described tooth bar is provided with chute, and base is provided with two tooth bar sliding axles, and described two tooth bar sliding axles all are positioned at chute.
4, dental unit gas control switch according to claim 1 is characterized in that:
Be welded with two driving lever limited posts on the described base, described driving lever is between these two driving lever limited posts.
5, dental unit gas control switch according to claim 4 is characterized in that:
The homonymy of a described switch driving lever limited post located therein, and contact with driving lever.
6, dental unit gas control switch according to claim 1 is characterized in that:
Described base plate is provided with an elastic component stay column that is positioned at the side of gear, is provided with an elastic component between elastic component stay column and driving lever turning cylinder.
7, dental unit gas control switch according to claim 6 is characterized in that:
Described elastic component one end is enclosed within on the elastic component stay column on the base, and the other end hangs in the aperture of dead man turning cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200495199U CN201219937Y (en) | 2008-06-20 | 2008-06-20 | Gas control switch of dentistry therapeutic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200495199U CN201219937Y (en) | 2008-06-20 | 2008-06-20 | Gas control switch of dentistry therapeutic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219937Y true CN201219937Y (en) | 2009-04-15 |
Family
ID=40573457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200495199U Expired - Fee Related CN201219937Y (en) | 2008-06-20 | 2008-06-20 | Gas control switch of dentistry therapeutic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219937Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045291A (en) * | 2015-08-07 | 2015-11-11 | 德奥通用航空股份有限公司 | Rotation angle control device for temperature controller |
| CN109124804A (en) * | 2017-06-27 | 2019-01-04 | 上海立珂医疗器械有限公司 | The air control unit of overhead dental units |
| TWI682371B (en) * | 2018-11-01 | 2020-01-11 | 褚錦雄 | Control switch applying linear signal interruption to output adjustment signal |
-
2008
- 2008-06-20 CN CNU2008200495199U patent/CN201219937Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045291A (en) * | 2015-08-07 | 2015-11-11 | 德奥通用航空股份有限公司 | Rotation angle control device for temperature controller |
| CN105045291B (en) * | 2015-08-07 | 2017-12-26 | 德奥通用航空股份有限公司 | A kind of temperature controller rotating angle control device |
| CN109124804A (en) * | 2017-06-27 | 2019-01-04 | 上海立珂医疗器械有限公司 | The air control unit of overhead dental units |
| TWI682371B (en) * | 2018-11-01 | 2020-01-11 | 褚錦雄 | Control switch applying linear signal interruption to output adjustment signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20110620 |