CN206352671U - A kind of controlling switch valve of dental units - Google Patents
A kind of controlling switch valve of dental units Download PDFInfo
- Publication number
- CN206352671U CN206352671U CN201621480209.3U CN201621480209U CN206352671U CN 206352671 U CN206352671 U CN 206352671U CN 201621480209 U CN201621480209 U CN 201621480209U CN 206352671 U CN206352671 U CN 206352671U
- Authority
- CN
- China
- Prior art keywords
- diameter
- cavity
- left end
- pressing piece
- minor diameter
- 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.)
- Active
Links
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
A kind of controlling switch valve of dental units, including shell, pressing piece and driven member, second air inlet are arranged on the lateral wall of the minor diameter cavity, and on the right side close to the major diameter cavity and the position that crosses of minor diameter cavity;The left end of the pressing piece is stretched into the small diameter cavity body, and its right-hand member stays in the outside of the hollow cavity;The inside of the pressing piece is provided with the bleeder port being in communication with the outside;The driven member is followed successively by pressure section, installation portion and auxiliary section from left to right, and the external diameter of the pressure section is suitable with the internal diameter of the major diameter cavity, and its right side props up the right side of the major diameter cavity;The installation portion and the external diameter of auxiliary section are less than the internal diameter of the minor diameter cavity, and the external diameter of the installation portion is less than the external diameter of the auxiliary section, provided with the first ring set on the installation portion, the external diameter of first sealing ring is suitable with the internal diameter of the minor diameter cavity.
Description
Technical field
The utility model is related to dental equipment field, the controlling switch valve of particularly a kind of dental units.
Background technology
Dental therapeutic apparatus is the treatment essential equipment of tooth.Dental units are typically necessary gas and water and electricity,
All it is to set separated independent switch to control gas and water and electricity under normal circumstances, gas and water are provided by extraneous source of the gas and water source,
In the case of no source of the gas, the operation of doctor is very inconvenient, accordingly, it would be desirable to preferably control source of the gas and water source.
For current dental units, gas source switch and water source switch are generally ball valve switch, respectively independent switch,
There is no coordinated signals, convenience and security are all general., it is necessary to which opening gas source switch and water source switch can respectively during operation
Ensure the supply of gas and water, some are complicated for operation, and there is no coordinated signals between gas source switch and water source switch,
Switch is too many, causes the laying of circuit also complex.
Utility model content
For drawbacks described above, the purpose of this utility model is the controlling switch valve for proposing a kind of dental units.
For up to this purpose, the utility model uses following technical scheme:
It is provided with and runs through in a kind of controlling switch valve of dental units, including shell, pressing piece and driven member, the shell
The hollow cavity of its both ends of the surface, the hollow cavity includes interconnected major diameter cavity and minor diameter cavity, the pressing
Part and driven member are sleeved in the hollow cavity, and both can in the presence of external pressure along the hollow cavity axle
To motion;The lateral wall of the hollow cavity is provided with the first air inlet and the second air inlet being in communication with the outside, it is characterised in that:
Second air inlet is arranged on the lateral wall of the minor diameter cavity, and close to the major diameter cavity and small
The right side of the position that crosses of diameter cavity;
The left end of the pressing piece is stretched into the small diameter cavity body, and its right-hand member stays in the outside of the hollow cavity;Institute
The inside for stating pressing piece is provided with the bleeder port being in communication with the outside;
The driven member is followed successively by pressure section, installation portion and auxiliary section from left to right, and the external diameter of the pressure section is less than institute
The internal diameter of major diameter cavity is stated, more than the internal diameter of the minor diameter cavity, the right side of the pressure section props up the major diameter
The right side of cavity;The installation portion and the external diameter of auxiliary section are less than the internal diameter of the minor diameter cavity, and the installation portion
External diameter is less than the external diameter of the auxiliary section, provided with the first ring set on the installation portion, outside first sealing ring
Footpath is suitable with the internal diameter of the minor diameter cavity;Accommodating chamber is provided with the auxiliary section, the side wall of the accommodating chamber, which is provided with, to be made
Its passage being in communication with the outside, the passage and the second air inlet are completely wrong on the axial location of the hollow cavity
Open;The left end of the pressing piece is inserted into the accommodating chamber, is covered between the left side of the pressing piece and the end face of accommodating chamber
Equipped with the second sealing ring.
It is preferred that, the lateral wall of the auxiliary section is the taper that external diameter is gradually reduced from left to right.
It is preferred that, provided with spring is compressed in the major diameter cavity, the left end for compressing spring props up the major diameter
The left side of cavity, its right-hand member props up the left side of the pressure section of the driven member.
It is preferred that, assembling step is fixed with the left side of the pressure section, the external diameter of the assembling step is supported with described
Quite, the right-hand member for compressing spring is sleeved on the assembling step internal diameter of pressing spring.
It is preferred that, the low order end of the pressing piece is provided with spacing ring, and the external diameter of the spacing ring is more than the small diameter cavity
The internal diameter of body;
Provided with pressing spring housing be mounted in the pressing piece, the right side that the shell is propped up by the left end of pressing spring,
And its right-hand member props up the left side of the spacing ring.
It is preferred that, the pressing piece includes left end minor diameter and the right-hand member major diameter portion being connected with each other, and the left end is small
The external diameter in diameter portion is less than the internal diameter of the accommodating chamber, the internal diameter of the external diameter in the right-hand member major diameter portion and the minor diameter cavity
Quite;
The left end minor diameter is mounted in provided with pressing spring housing, the left end of the left end minor diameter stretches into the receiving
Intracavitary, the right side that the auxiliary section is propped up by the left end of pressing spring, its right-hand member props up the left end minor diameter and the right side
End major diameter portion crosses the step end face to be formed.
It is preferred that, stretch into and two sealing rings are set with the pressing piece in the small diameter cavity body, two are described close
Seal is disposed on the pressing piece.
It is preferred that, the left end of the hollow cavity is to be provided with gas by sealing ring on total air inlet, total air inlet
Mouth.
The beneficial effects of the utility model:Gases at high pressure enter in shell from total air inlet, from the first air inlet and second
Air inlet enters after spraying to be used in the dentistry machine of front end.Pressing piece is pressed to the left, its left end minor diameter and driven member
Relative displacement occurs for auxiliary section so that the side wall of left end minor diameter seals passage, and gases at high pressure pass through major diameter cavity
And between major diameter cavity and minor diameter cavity transition position, finally by the second air inlet spray.Decontrol pressing piece, its to
Right elasticity is recovered, and the right side of the pressure section props up the right side of the major diameter cavity, separates major diameter cavity and small straight
Connection between the cavity of footpath, while relative displacement occurs for the auxiliary section of left end minor diameter and driven member so that left end minor diameter
The gases at high pressure that the end face in portion is come in the lower section of passage, the dentistry machine of front end are along low-pressure channel, from the second air inlet,
Come back in small diameter cavity body, and entered by passage from the left end of the pressing piece in bleeder port, be discharged to the external world, from
And smoothly complete the discharge of gases at high pressure, it is ensured that the safe handling of front end dental equipment.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present utility model;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1;
Fig. 3 is the structural representation of another embodiment of the present utility model.
Wherein:Shell 1, hollow cavity 10, the first air inlet 11, the second air inlet 12, total air inlet 13, major diameter cavity
101, minor diameter cavity 102;
Pressing piece 2, spacing ring 21, left end minor diameter 201, right-hand member major diameter portion 202, step end face 203;Driven member 3,
Pressure section 31, assembles step 310, installation portion 32, auxiliary section 33, accommodating chamber 330, passage 331;First sealing ring 41, second
Sealing ring 42, sealing ring 43;Compress spring 5, valve 6, by pressing spring 7.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in Figures 1 and 2, the controlling switch valve of a kind of dental units, including shell 1, pressing piece 2 and driven member 3,
The hollow cavity 10 through its both ends of the surface is provided with the shell 1, the hollow cavity 10 includes interconnected major diameter chamber
Body 101 and minor diameter cavity 102, the pressing piece 2 and driven member 3 are sleeved in the hollow cavity 10, and both can be outside
Along the axial movement of the hollow cavity 10 in the presence of portion's pressure;The lateral wall of the hollow cavity 10 is provided with the external world even
Logical the first air inlet 11 and the second air inlet 12;
Second air inlet 12 is arranged on the lateral wall of the minor diameter cavity 102, and close to the major diameter chamber
The right side of the position that crosses of body 101 and minor diameter cavity 102;
The left end of the pressing piece 2 is stretched into the minor diameter cavity 102, and its right-hand member stays in the outer of the hollow cavity 10
Side;The inside of the pressing piece 2 is provided with the bleeder port 21 being in communication with the outside;
The driven member 3 is followed successively by outside pressure section 31, installation portion 32 and auxiliary section 33, the pressure section 31 from left to right
Footpath is less than the internal diameter of the major diameter cavity 101, more than the internal diameter of the minor diameter cavity 102, the right-hand member of the pressure section 31
Face props up the right side of the major diameter cavity 101;The installation portion 32 and the external diameter of auxiliary section 33 are less than the small diameter cavity
The internal diameter of body 102, and external diameter of the external diameter less than the auxiliary section 33 of the installation portion 32, are sleeved on provided with the first sealing ring 41
On the installation portion 32, the external diameter of first sealing ring 41 is suitable with the internal diameter of the minor diameter cavity 102;The auxiliary section
Accommodating chamber 330 is provided with 33, the side wall of the accommodating chamber 330, which is provided with, makes the passage 331 that it is in communication with the outside, the ventilation
Stagger completely on the axial location of the hollow cavity 10 with the second air inlet 12 in hole 331;The left end inserting of the pressing piece 2
In the accommodating chamber 330, the second sealing ring 42 is set between the left side of the pressing piece 2 and the end face of accommodating chamber 330.
Gases at high pressure enter in shell from total air inlet 13, enter after being sprayed from the first air inlet 11 and the second air inlet 12
Used in the dentistry machine of front end.Pressing piece 2 is pressed to the left, and its left end minor diameter 201 and the auxiliary section 33 of driven member 3 occur
Relative displacement so that the side wall of left end minor diameter 201 seals passage 331, gases at high pressure by major diameter cavity 101 and
The position of transition between major diameter cavity 101 and minor diameter cavity 102, sprays finally by the second air inlet 12.Decontrol pressing
Part 2, its elasticity recovery to the right, the right side of the pressure section 31 props up the right side of the major diameter cavity 101, and cut-off is big straight
Connection between footpath cavity 101 and minor diameter cavity 102, while left end minor diameter 201 and the auxiliary section 33 of driven member 3 occur
Relative displacement so that the high pressure that the end face of left end minor diameter 201 is come in the lower section of passage 331, the dentistry machine of front end
Gas, from the second air inlet 12, is come back in minor diameter cavity 102 along low-pressure channel, and by passage 331 from described
The left end of pressing piece 2 enters in bleeder port 21, the external world is discharged to, so as to smoothly complete the discharge of gases at high pressure, it is ensured that front end tooth
The safe handling of section's equipment.
The lateral wall of the auxiliary section 33 is the taper that external diameter is gradually reduced from left to right.
Provided with spring 5 is compressed in the major diameter cavity 101, the left end for compressing spring 5 props up the major diameter chamber
The left side of body 101, its right-hand member props up the left side of the pressure section 31 of the driven member 3.
Assembling step 310 is fixed with the left side of the pressure section 31, the external diameter of the assembling step 310 is supported with described
Quite, the right-hand member for compressing spring 5 is sleeved on the assembling step 310 internal diameter of pressing spring 5.
The low order end of the pressing piece 2 is provided with spacing ring 21, and the external diameter of the spacing ring 21 is more than the minor diameter cavity
102 internal diameter;
Provided with the pressing piece 2 is sleeved on by pressing spring 7, the left end by pressing spring 7 props up the right-hand member of the shell 1
Face, and its right-hand member props up the left side of the spacing ring 21.
As shown in figure 3, the pressing piece 2 includes left end minor diameter 201 and the right-hand member major diameter portion 202 being connected with each other,
The external diameter of the left end minor diameter 201 be less than the accommodating chamber 330 internal diameter, the external diameter in the right-hand member major diameter portion 202 with
The internal diameter of the minor diameter cavity 102 is suitable;
Provided with the left end minor diameter 201 is sleeved on by pressing spring 7, the left end of the left end minor diameter 201 is stretched into
In the accommodating chamber 330, the left end by pressing spring 7 props up the right side of the auxiliary section 33, and its right-hand member props up the left side
End minor diameter 201 and right-hand member major diameter portion 202 cross the step end face 203 to be formed.
Stretch into and two sealing rings 43 are set with the pressing piece 2 in the minor diameter cavity 102, two sealings
Circle 43 is disposed on the pressing piece 2.
The left end of the hollow cavity 10 is to be provided with valve by sealing ring on total air inlet 13, total air inlet 13
6。
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to the utility model protection domain can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within protection domain of the present utility model.
Claims (8)
1. it is provided with a kind of controlling switch valve of dental units, including shell, pressing piece and driven member, the shell and runs through it
The hollow cavity of both ends of the surface, the hollow cavity includes interconnected major diameter cavity and minor diameter cavity, the pressing piece
It is sleeved on driven member in the hollow cavity, and both can be in the presence of external pressure along the axial direction of the hollow cavity
Motion;The lateral wall of the hollow cavity is provided with the first air inlet and the second air inlet being in communication with the outside, it is characterised in that:
Second air inlet is arranged on the lateral wall of the minor diameter cavity, and close to the major diameter cavity and minor diameter
The right side of the position that crosses of cavity;
The left end of the pressing piece is stretched into the small diameter cavity body, and its right-hand member stays in the outside of the hollow cavity;It is described to press
The inside of casting die is provided with the bleeder port being in communication with the outside;
The driven member is followed successively by pressure section, installation portion and auxiliary section from left to right, and the external diameter of the pressure section is big less than described
The internal diameter of diameter cavity, more than the internal diameter of the minor diameter cavity, the right side of the pressure section props up the major diameter cavity
Right side;The installation portion and the external diameter of auxiliary section are less than the internal diameter of the minor diameter cavity, and the external diameter of the installation portion
Less than the external diameter of the auxiliary section, provided with the first ring set on the installation portion, the external diameter of first sealing ring with
The internal diameter of the minor diameter cavity is suitable;Be provided with accommodating chamber in the auxiliary section, the side wall of the accommodating chamber provided with make its with
The passage of external world's connection, the passage staggers completely with the second air inlet on the axial location of the hollow cavity;Institute
The left end for stating pressing piece is inserted into the accommodating chamber, and is set between the left side of the pressing piece and the end face of accommodating chamber
Two sealing rings.
2. the controlling switch valve of dental units according to claim 1, it is characterised in that:The lateral wall of the auxiliary section
It is the taper that external diameter is gradually reduced from left to right.
3. the controlling switch valve of dental units according to claim 1, it is characterised in that:Set in the major diameter cavity
Spring is compressed, the left end for compressing spring props up the left side of the major diameter cavity, and its right-hand member props up the driven member
Pressure section left side.
4. the controlling switch valve of dental units according to claim 3, it is characterised in that:The left side of the pressure section
On be fixed with assembling step, the external diameter of the assembling step is suitable with the internal diameter for compressing spring, the right side for compressing spring
End is sleeved on the assembling step.
5. the controlling switch valve of dental units according to claim 3, it is characterised in that:The low order end of the pressing piece
Provided with spacing ring, the external diameter of the spacing ring is more than the internal diameter of the minor diameter cavity;
Provided with pressing spring housing be mounted in the pressing piece, the right side that the shell is propped up by the left end of pressing spring, and its
Right-hand member props up the left side of the spacing ring.
6. the controlling switch valve of dental units according to claim 3, it is characterised in that:The pressing piece includes mutual
The left end minor diameter of connection and right-hand member major diameter portion, the external diameter of the left end minor diameter are less than the internal diameter of the accommodating chamber,
The external diameter in the right-hand member major diameter portion is suitable with the internal diameter of the minor diameter cavity;
The left end minor diameter is mounted in provided with pressing spring housing, the left end of the left end minor diameter stretches into the accommodating chamber
Interior, the right side that the auxiliary section is propped up by the left end of pressing spring, its right-hand member props up the left end minor diameter and right-hand member
Major diameter portion crosses the step end face to be formed.
7. the controlling switch valve of dental units according to claim 1, it is characterised in that:Stretch into the minor diameter cavity
Two sealing rings are set with the interior pressing piece, two sealing rings are disposed on the pressing piece.
8. the controlling switch valve of dental units according to claim 1, it is characterised in that:The left end of the hollow cavity
For total air inlet, valve is provided with by sealing ring on total air inlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621480209.3U CN206352671U (en) | 2016-12-30 | 2016-12-30 | A kind of controlling switch valve of dental units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621480209.3U CN206352671U (en) | 2016-12-30 | 2016-12-30 | A kind of controlling switch valve of dental units |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206352671U true CN206352671U (en) | 2017-07-25 |
Family
ID=59348516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201621480209.3U Active CN206352671U (en) | 2016-12-30 | 2016-12-30 | A kind of controlling switch valve of dental units |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206352671U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106763897A (en) * | 2016-12-30 | 2017-05-31 | 佛山市德克医疗器械有限公司 | A kind of controlling switch valve of dental units |
-
2016
- 2016-12-30 CN CN201621480209.3U patent/CN206352671U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106763897A (en) * | 2016-12-30 | 2017-05-31 | 佛山市德克医疗器械有限公司 | A kind of controlling switch valve of dental units |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN203943996U (en) | A kind of breather valve | |
CN206352671U (en) | A kind of controlling switch valve of dental units | |
CN203802905U (en) | Portable medicated oxygen mist suction-exhaust hood | |
CN106763897A (en) | A kind of controlling switch valve of dental units | |
CN201347847Y (en) | Gas automatical pressure maintaining complement booster pump | |
CN208885503U (en) | A kind of water pump exhaust apparatus | |
CN207768101U (en) | Cooking apparatus | |
CN105526108A (en) | Safe and energy-saving air compression device | |
CN107837470A (en) | A kind of steam supply valve of the integrated outlet valve of new small size | |
CN201353353Y (en) | Invasive respirator | |
CN108653892A (en) | A kind of multi-functional noninvasive ventilator mask | |
CN110269986B (en) | Portable energy-concerving and environment-protective breathing machine equipment | |
CN209270559U (en) | A kind of oxygen face mask | |
CN219237501U (en) | Leak protection detection mechanism for packagine machine | |
CN210992407U (en) | Air bag air pressure control device of tracheal catheter | |
CN205235124U (en) | Breathe control valve, breathe control external member and breathing machine | |
CN207137117U (en) | A kind of multi-source oxygen gas port | |
CN105526110A (en) | Energy-saving and safe air compression device | |
CN205866862U (en) | Novel zero resorption aluminium handle dental drill handpiece stops soon | |
CN206770158U (en) | A kind of mattress pump of double air cavity noise reductions | |
CN105587580A (en) | Efficient energy-saving device for extracting shale gas | |
CN108331730A (en) | A kind of Pneumatic pressure liquid delivery pump | |
CN105587577A (en) | Efficient and energy-saving electromagnetic equipment for extraction and pressurizing of shale gas | |
CN105697304A (en) | Environment-friendly, high-efficiency and energy-saving air compression equipment | |
CN105588001A (en) | Efficient energy-saving electromagnetic equipment for extracting natural gas |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |