CN108413086A - Cavity constant-voltage equipment - Google Patents
Cavity constant-voltage equipment Download PDFInfo
- Publication number
- CN108413086A CN108413086A CN201810274633.XA CN201810274633A CN108413086A CN 108413086 A CN108413086 A CN 108413086A CN 201810274633 A CN201810274633 A CN 201810274633A CN 108413086 A CN108413086 A CN 108413086A
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- China
- Prior art keywords
- shell
- sealing
- constant pressure
- constant
- voltage equipment
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The present invention discloses and provides a kind of simple structure and reasonable design and the cavity constant-voltage equipment with pressure change in timely adjustment sealed environment.The present invention includes hollow shell, and adaptation is equipped with constant pressure sealing structure in the shell, stores fluid in the constant pressure sealing structure, and the constant pressure sealing structure only opens up that there are one blow vents, and the blow vent and outer seal device airtight connection.The present invention can be used for the technical field of pressure regulator.
Description
Technical field
The present invention relates to a kind of cavity constant-voltage equipments.
Background technology
Existing oxygen pump needs sealed environment or seal cavity when in use, and the aqueous vapor in air is avoided to infiltrate through
Failure is brought it about in oxygen pump；But oxygen pumps when in use, since workpiece fever or summer high-temperature are exposed to the sun and are all easy
The air pressure in the sealed environment is caused to be lacked of proper care so that external aqueous vapor is run to oxygen and pumped in inside.So one kind can be adjusted in due course
The device needs of pressure change are put into use in section sealed environment.
Invention content
The technical problem to be solved in the present invention is to provide a kind of simple structure and reasonable design and there is timely adjustment sealing ring
The cavity constant-voltage equipment of pressure change in border.
The technical solution adopted in the present invention is：The present invention includes hollow shell, and adaptation installation is persevering in the shell
Pressure sealing structure, stores fluid in the constant pressure sealing structure, and the constant pressure sealing structure only opens up that there are one blow vents, and
The blow vent and outer seal device airtight connection.
By said program as it can be seen that the present invention using constant pressure sealing structure by blow vent and oxygen pump in seal cavity or
It is that other sealing devices for needing closed work are attached, if keep internal pressure increased in the presence of fever in seal cavity
It waits, the partial gas pressure in seal cavity can be transferred in constant pressure sealing structure, realize the constant pressure purpose in seal cavity.This
Inventive structure is simple, can adjust the air pressure in seal cavity well, prevents external aqueous vapor from running and penetrates into inside.
Further, the constant pressure sealing structure for piston or collapses sacculus or sealing elastomeric membrane.
By said program as it can be seen that in the present invention, constant pressure sealing structure is using piston or collapses sacculus or sealing elastomeric membrane
This kind of structure that can change sealed volume, using inner sealing volume variation and coordinate fixed stream in constant pressure sealing structure
Body content so that outer seal device needs the seal cavity for carrying out constant pressure can be with the fluid that is stored in constant pressure sealing structure
Carry out interconnection exchange, steady-state adjustment.In general, fluid refers to air, and when outer seal device generates high pressure, high pressure gas can be with
Into in constant pressure sealing structure, constant pressure sealing structure eliminates affected by high using the expansion of inner sealing volume；But it is directed to one
Immersion oil is even saturated with the situation of oil in seal cavity inside a little outer seal devices, and the fluid inside the present invention is then same attribute
Oil, oil as exchange media carry out steady-state adjustment；Generally speaking, according to the medium in outer seal device inner sealing cavity
The type of fluid in the present invention is allocated, fluid can be oxygen, air, oil or other gas liquids.
As one embodiment, the piston includes at least one layer of sealing-plug, the inner wall of the sealing-plug and the shell
It is adapted, the fluid storage is in the region that the inner wall of the sealing-plug and the shell is collectively formed.
By said program as it can be seen that in the present invention, piston motion is carried out using sealing-plug, change constant pressure sealing to reach
The effect of inner sealing volume in structure；Better seal and voltage regulation result can be played by designing multi-layer sealed plug.
Further, the piston is provided with three layers of sealing-plug being spaced apart.
Further, the shell is column, and the blow vent is arranged on the bottom of the shell, the top of the shell
It is provided with the first sealing cover, first sealing cover is threadedly coupled with the shell, is provided in the middle part of first sealing cover
First outer constant pressure hole, the shell are connected by the described first outer constant pressure hole with external environment.
As another embodiment, the liner being connected with the blow vent that is internally provided with for collapsing sacculus, institute
Fluid storage is stated in the region collapsed in sacculus in addition to the liner, the liner is made of flexible material.
By said program as it can be seen that in the present invention, collapsing the appropriate air of storage in sacculus, being collapsed using sacculus is collapsed
Achieve the effect that change inner sealing volume in constant pressure sealing structure；Design the liner that itself can be collapsed, when use will
Fluid media (medium) in outer seal device is mutually separated by using the liner and the air in constant pressure sealing structure, can be played more
Accurately voltage stabilizing is added to adjust, meanwhile, also avoid the interference of outer seal device and constant pressure sealing structure.
Further, if being provided with dry elasticity dilatation face domain on the outer wall for collapsing sacculus.
By said program as it can be seen that in the present invention, elastic dilatation face domain can to collapse sacculus using natural resiliency
Volume can swell to obtain bigger.
Further, the shell is generally spherical, and the blow vent is arranged in the bottom of the shell, the shell
Top be provided with the second outer constant pressure hole, the shell is connected by the described second outer constant pressure hole with external environment.
As another embodiment, the outer edge of the sealing elastomeric membrane is provided with overhead kick, and the overhead kick is embedded in described
In the inner wall of shell, the fluid storage is in the region that the inner wall of the sealing elastomeric membrane and the shell is collectively formed.
By said program as it can be seen that in the present invention, sealing elastomeric membrane from the inside of shell by shell by being divided into two
Point, the bottom natural of shell forms seal chamber；In addition, utilizing the elasticity of sealing elastomeric membrane, thus it is possible to vary constant pressure sealing structure
The effect of the volume of middle inner sealing chamber.
Further, the shell is knob shape, and the blow vent is arranged in the bottom of the shell, the shell it is upper
Portion is provided with the second sealing cover, and second sealing cover is threadedly coupled with the shell, the bottom of second sealing cover and institute
It states the outer peripheral top of sealing elastomeric membrane to match, the outer constant pressure hole of third, the shell is provided in the middle part of second sealing cover
Body is connected by constant pressure hole outside the third with external environment.
By said program as it can be seen that in the present invention, the second sealing cover is convenient with shell dismounting, at the same it is close using described second
Sealing elastomeric membrane can be pushed by being sealed on when turn-knob is installed in shell so that sealing effect is more preferable.
Description of the drawings
Fig. 1 is the structural schematic diagram of shell and piston；
Fig. 2 is shell and collapses the structural schematic diagram of sacculus；
Fig. 3 is shell and the structural schematic diagram of sealing elastomeric membrane.
Specific implementation mode
The present invention specific implementation mode be：The present invention includes hollow shell 1, and adaptation installation is persevering in the shell 1
Pressure sealing structure stores fluid in the constant pressure sealing structure, and the constant pressure sealing structure is only opened up there are one blow vent 2,
And the blow vent 2 and outer seal device airtight connection.The present invention is pumped using constant pressure sealing structure by blow vent 2 and oxygen
In seal cavity or other sealing devices for needing closed work be attached, if making inside in the presence of fever in seal cavity
When pressure increases, the partial gas pressure in seal cavity can be transferred in constant pressure sealing structure, be realized in seal cavity
Constant pressure purpose.The configuration of the present invention is simple can adjust the air pressure in seal cavity well, prevent external aqueous vapor from running in infiltration
Portion.
The shell 1 is attached with outer seal device using screw thread.
The constant pressure sealing structure is piston 3 or collapses sacculus 4 or sealing elastomeric membrane 5.In the present invention, constant pressure sealing knot
Structure is using piston 3 or collapses sacculus 4 or this kind of structure that can change sealed volume of sealing elastomeric membrane 5, is held using inner sealing
Long-pending variation simultaneously coordinates fixed fluid content in constant pressure sealing structure so that outer seal device needs to carry out the sealing of constant pressure
Cavity can carry out interconnection exchange, steady-state adjustment with the fluid being stored in constant pressure sealing structure.In general, fluid refers to sky
Gas, when outer seal device generates high pressure, high pressure gas can enter in constant pressure sealing structure, and constant pressure sealing structure utilizes inside
The expansion of sealed volume and eliminate affected by high；But it is even soaked for immersion oil in the seal cavity inside some outer seal devices
The situation of full oil, the internal fluid of the present invention are then the oil with attribute, and oil is as exchange media progress steady-state adjustment；Total comes
It says, the type of fluid in the present invention is allocated according to the medium in outer seal device inner sealing cavity, fluid can be oxygen
Gas, air, oil or other gas liquids
Embodiment one：As shown in Figure 1, constant pressure sealing structure is piston 3, the piston 3 includes at least one layer of sealing-plug 31, described
Sealing-plug 31 is adapted with the inner wall of the shell 1, and the fluid storage is total in the inner wall of the sealing-plug 31 and the shell 1
With in the region formed.In the present embodiment, piston motion is carried out using sealing-plug 31, changes constant pressure sealing structure to reach
The effect of middle inner sealing volume；Better seal and voltage regulation result can be played by designing multi-layer sealed plug 31.
In the present embodiment, the piston 3 is provided with three layers of sealing-plug being spaced apart 31.
In the present embodiment, the shell 1 is column, and the blow vent 2 is arranged in the bottom of the shell 1, the shell
The top of body 1 is provided with the first sealing cover 32, and first sealing cover 32 is threadedly coupled with the shell 1, first sealing
The middle part of lid 32 is provided with the first outer constant pressure hole 33, and the shell 1 is connected by the described first outer constant pressure hole 33 with external environment
It is logical.
Embodiment two：As shown in Fig. 2, constant pressure sealing structure is to collapse sacculus 4, it is described to collapse being internally provided with for sacculus 4
The liner 41 being connected with the blow vent 2, the fluid storage is in the area collapsed in sacculus 4 in addition to the liner 41
Domain, the liner 41 are made of flexible material.In embodiment, the appropriate air of storage in sacculus 4 is collapsed, using collapsing sacculus 4
Collapse and achievees the effect that change inner sealing volume in constant pressure sealing structure；Design the liner that itself can be collapsed
41, by the fluid media (medium) in outer seal device by using the liner 41 and the air phase in constant pressure sealing structure point when use
Every, more accurately voltage stabilizing adjusting can be played, meanwhile, also avoid the interference of outer seal device and constant pressure sealing structure.
In the present embodiment, if being provided with dry elasticity dilatation face domain 42 on the outer wall for collapsing sacculus 4.Elastic dilatation face
Domain 42 can allow the volume for collapsing sacculus 4 to swell to obtain bigger using natural resiliency.
In the present embodiment, the shell 1 is generally spherical, and the blow vent 2 is arranged in the bottom of the shell 1,
The top of the shell 1 is provided with the second outer constant pressure hole 43, and the shell 1 passes through the described second outer constant pressure hole 43 and external environment
It is connected.
Embodiment three：As shown in figure 3, constant pressure sealing structure is sealing elastomeric membrane 5, the outer edge of the sealing elastomeric membrane 5
It is provided with overhead kick 51, the overhead kick 51 is embedded in the inner wall of the shell 1, and the fluid storage is in the sealing elastomeric membrane 5
In the region being collectively formed with the inner wall of the shell 1.In the present embodiment, sealing elastomeric membrane 5 by from the inside of shell 1 by shell
Body 1 is divided into two parts, and the bottom natural of shell 1 forms seal chamber；In addition, using the elasticity of sealing elastomeric membrane 5, Ke Yigai
Become the effect of the volume of inner sealing chamber in constant pressure sealing structure.
In the present embodiment, the shell 1 is knob shape, and the blow vent 2 is arranged in the bottom of the shell 1, described
The top of shell 1 is provided with the second sealing cover 52, and second sealing cover 52 is threadedly coupled with the shell 1, and described second is close
The bottom of capping 52 is matched with 5 outer peripheral top of the sealing elastomeric membrane, and the middle part of second sealing cover 52 is provided with
The outer constant pressure hole 53 of third, the shell 1 are connected by constant pressure hole 53 outside the third with external environment.In the present embodiment, the
Two sealing covers 52 and shell 1 are convenient for disassembly and assembly, while can be following when turn-knob is installed in shell 1 using second sealing cover 52
Means of press seals elastic membrane 5 so that sealing effect is more preferable.
The present invention is pumped suitable for oxygen, is equally applicable to most transformers for needing confined space to carry out air pressure adjustment or is opened
Close class device.
The present invention can be used for the technical field of pressure regulator.
Claims (10)
1. a kind of cavity constant-voltage equipment, it is characterised in that：It includes hollow shell（1）, the shell（1）Interior adaptation is equipped with
Constant pressure sealing structure, stores fluid in the constant pressure sealing structure, and the constant pressure sealing structure only opens up that there are one blow vents
（2）, and the blow vent（2）With outer seal device airtight connection.
2. cavity constant-voltage equipment according to claim 1, it is characterised in that：The constant pressure sealing structure is piston（3）Or
Collapse sacculus（4）Or sealing elastomeric membrane（5）.
3. cavity constant-voltage equipment according to claim 2, it is characterised in that：The piston（3）It is sealed including at least one layer
Plug（31）, the sealing-plug（31）With the shell（1）Inner wall be adapted, the fluid storage is in the sealing-plug（31）With
The shell（1）The region that is collectively formed of inner wall in.
4. cavity constant-voltage equipment according to claim 3, it is characterised in that：The piston（3）Be provided with three interlayers every point
The sealing-plug of cloth（31）.
5. cavity constant-voltage equipment according to claim 3, it is characterised in that：The shell（1）For column, the blow vent
（2）It is arranged in the shell（1）Bottom, the shell（1）Top be provided with the first sealing cover（32）, first sealing
Lid（32）With the shell（1）It is threadedly coupled, first sealing cover（32）Middle part be provided with the first outer constant pressure hole（33）, institute
State shell（1）Pass through the described first outer constant pressure hole（33）It is connected with external environment.
6. cavity constant-voltage equipment according to claim 2, it is characterised in that：It is described to collapse sacculus（4）Be internally provided with
With the blow vent（2）The liner being connected（41）, the fluid storage collapses sacculus described（4）In remove the liner（41）
Region in addition, the liner（41）It is made of flexible material.
7. cavity constant-voltage equipment according to claim 6, it is characterised in that：It is described to collapse sacculus（4）Outer wall on be arranged
If there is dry elasticity dilatation face domain（42）.
8. cavity constant-voltage equipment according to claim 6, it is characterised in that：The shell（1）It is generally spherical, it is described
Blow vent（2）It is arranged in the shell（1）Bottom, the shell（1）Top be provided with the second outer constant pressure hole（43）, described
Shell（1）Pass through the described second outer constant pressure hole（43）It is connected with external environment.
9. cavity constant-voltage equipment according to claim 2, it is characterised in that：The sealing elastomeric membrane（5）Outer edge set
It is equipped with overhead kick（51）, the overhead kick（51）It is embedded in the shell（1）Inner wall in, the fluid storage is in the sealed elastic
Film（5）With the shell（1）The region that is collectively formed of inner wall in.
10. cavity constant-voltage equipment according to claim 9, it is characterised in that：The shell（1）It is described logical for knob shape
Gas port（2）It is arranged in the shell（1）Bottom, the shell（1）Top be provided with the second sealing cover（52）, described second
Sealing cover（52）With the shell（1）It is threadedly coupled, second sealing cover（52）Bottom and the sealing elastomeric membrane（5）Outside
The top at edge matches, second sealing cover（52）Middle part be provided with the outer constant pressure hole of third（53）, the shell（1）It is logical
Cross the outer constant pressure hole of the third（53）It is connected with external environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274633.XA CN108413086A (en) | 2018-03-30 | 2018-03-30 | Cavity constant-voltage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274633.XA CN108413086A (en) | 2018-03-30 | 2018-03-30 | Cavity constant-voltage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108413086A true CN108413086A (en) | 2018-08-17 |
Family
ID=63134017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810274633.XA Pending CN108413086A (en) | 2018-03-30 | 2018-03-30 | Cavity constant-voltage equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108413086A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283439A (en) * | 1940-12-21 | 1942-05-19 | Vickers Inc | Accumulator diaphragm |
| US2339876A (en) * | 1941-01-13 | 1944-01-25 | Pesco Products Co | Accumulator |
| US2563257A (en) * | 1946-09-16 | 1951-08-07 | Ernest W Loukonen | Pulsation absorber |
| GB817955A (en) * | 1955-10-04 | 1959-08-06 | Flexonics Corp | Hydraulic accumulators |
| FR1297284A (en) * | 1961-05-18 | 1962-06-29 | Container for pressurized fluids | |
| GB1412366A (en) * | 1972-12-15 | 1975-11-05 | Leduc G | Hydraulic accumulators having a membrane |
| DE2522380A1 (en) * | 1975-05-21 | 1976-12-02 | Teves Gmbh Alfred | Pressure accumulator with membrane divided container - has double dividing wall with interspace filled with fluid |
| JPH0624202U (en) * | 1992-08-31 | 1994-03-29 | エヌオーケー株式会社 | accumulator |
| DE4444350A1 (en) * | 1994-12-14 | 1996-06-20 | Daum Hans Juergen | Bladder, piston or membrane type pressure storage device mfr. |
| CN1132498A (en) * | 1993-08-06 | 1996-10-02 | 河流医疗有限公司 | Liquid delivery device |
| JP2005240934A (en) * | 2004-02-27 | 2005-09-08 | Nok Corp | Piston type accumulator |
| CN1749581A (en) * | 2005-10-14 | 2006-03-22 | 王祖林 | Wound diaphragm type accumulator |
| CN206555511U (en) * | 2017-01-09 | 2017-10-13 | 中国科学院合肥物质科学研究院 | A kind of vacuum air inlet safety valve |
| CN208153793U (en) * | 2018-03-30 | 2018-11-27 | 珠海聚能精密工业有限公司 | Cavity constant-voltage equipment |
-
2018
- 2018-03-30 CN CN201810274633.XA patent/CN108413086A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283439A (en) * | 1940-12-21 | 1942-05-19 | Vickers Inc | Accumulator diaphragm |
| US2339876A (en) * | 1941-01-13 | 1944-01-25 | Pesco Products Co | Accumulator |
| US2563257A (en) * | 1946-09-16 | 1951-08-07 | Ernest W Loukonen | Pulsation absorber |
| GB817955A (en) * | 1955-10-04 | 1959-08-06 | Flexonics Corp | Hydraulic accumulators |
| FR1297284A (en) * | 1961-05-18 | 1962-06-29 | Container for pressurized fluids | |
| GB1412366A (en) * | 1972-12-15 | 1975-11-05 | Leduc G | Hydraulic accumulators having a membrane |
| DE2522380A1 (en) * | 1975-05-21 | 1976-12-02 | Teves Gmbh Alfred | Pressure accumulator with membrane divided container - has double dividing wall with interspace filled with fluid |
| JPH0624202U (en) * | 1992-08-31 | 1994-03-29 | エヌオーケー株式会社 | accumulator |
| CN1132498A (en) * | 1993-08-06 | 1996-10-02 | 河流医疗有限公司 | Liquid delivery device |
| DE4444350A1 (en) * | 1994-12-14 | 1996-06-20 | Daum Hans Juergen | Bladder, piston or membrane type pressure storage device mfr. |
| JP2005240934A (en) * | 2004-02-27 | 2005-09-08 | Nok Corp | Piston type accumulator |
| CN1749581A (en) * | 2005-10-14 | 2006-03-22 | 王祖林 | Wound diaphragm type accumulator |
| CN206555511U (en) * | 2017-01-09 | 2017-10-13 | 中国科学院合肥物质科学研究院 | A kind of vacuum air inlet safety valve |
| CN208153793U (en) * | 2018-03-30 | 2018-11-27 | 珠海聚能精密工业有限公司 | Cavity constant-voltage equipment |
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