CN106949037B - Vacuum suction device - Google Patents
Vacuum suction device Download PDFInfo
- Publication number
- CN106949037B CN106949037B CN201710232946.4A CN201710232946A CN106949037B CN 106949037 B CN106949037 B CN 106949037B CN 201710232946 A CN201710232946 A CN 201710232946A CN 106949037 B CN106949037 B CN 106949037B
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder barrel
- annular groove
- groove
- air extraction
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
Abstract
The present invention relates to vacuum suction devices, the piston being slidably matched including cylinder barrel and in cylinder barrel with the cylinder barrel；The cylinder barrel and piston surround an air extraction space；Bleeding point is provided on the piston；The bleeding point is connected to the air extraction space；The outer wall of the piston is provided with annular groove, is provided with sealing ring in the annular groove；Gas outlet is provided on the side and bottom surface of the annular groove, the gas outlet includes the outlet groove formed on the side of the annular groove and the deformation groove formed on the bottom surface of the annular groove.When pressing down on the cylinder barrel, sealing ring is connected to the deformation groove variations, gas outlet with air extraction space, and gas is released；When the cylinder barrel moves up, sealing ring reclines the top surface of annular groove, the thus clearance seal that the inner wall of the outer wall of piston and cylinder barrel is between the two, while gas bleeding from container.The present invention is light small and exquisite, practical and convenient, cheap.
Description
Technical field
The present invention relates to vacuum suction fields, relate more specifically to a kind of vacuum suction device.
Background technique
During the preservation of present food and medicinal material, in order to avoid gas, the particulate matter in food and medicinal material and air
Or bacterium contact and there is a situation where putrid and deteriorated, generally require the container progress vacuumize process that will saves food and medicinal material,
Air, particulate matter and the bacterium that can be removed in container first are done so, these substances is can be avoided and is contacted with food or medicinal material；
Secondly, not having in these substances when causing food or medicinal material corruption even if having the remaining air in part, particulate matter or bacterium yet
Enough air or other depleting substances, so as to contain the corruption of food or drug.
Then currently used there are two ways to vacuumizing, seals container one is air is dissipated using heating,
The air pressure in container can be made to be far smaller than external pressure after cooling, this mode can make shape in container to a certain extent
At negative pressure, but its negative pressure is not very big, container needs when cannot thoroughly avoid the corruption of food or medicinal material, also, heat
High temperature is born, the food and medicinal material in container will also bear high temperature, and the article for that should not bear high temperature is can not to handle
's.Another kind is to be vacuumized using vacuum pump to container, and the ability that vacuum pump vacuumizes is strong and applied widely, still,
The price of vacuum pump is higher, and volume, weight are all larger.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of light cheap vacuum suction device.
In order to achieve the above objectives, vacuum suction device of the invention, including cylinder barrel and in cylinder barrel with the cylinder barrel slide
The piston of cooperation；The cylinder barrel and piston surround an air extraction space；Bleeding point is provided on the piston；The bleeding point with
The air extraction space connection；
The outer wall of the piston is provided with annular groove, is provided with sealing ring in the annular groove, for the outer wall in the piston
The sealing between the two with the inner wall of the cylinder barrel；Gas outlet, the outlet are provided on the side and bottom surface of the annular groove
Mouth includes the outlet groove formed on the side of the annular groove and the deformation groove formed on the bottom surface of the annular groove；When
When being evacuated, the sealing ring reclines the top surface of the annular groove, thus by the inner wall of the outer wall of the piston and the cylinder barrel
Clearance seal between the two；When being exhausted, the sealing ring is to the deformation groove variations, so that gas outlet and pumping
Space is connected to and realizes exhaust.
Further, the bleeding point includes that open cavity of the piston far from cylinder barrel one end, the opening is arranged in
The open side of cavity is provided with gasket, and the bottom of the open cavity has the venthole being connected to the air extraction space.
Further, reset spring is provided between one end and piston far from the piston of the cylinder barrel；The pumping
The bottom in space is provided with bolt hole, and the cylinder body is provided with tapped blind hole far from one end of piston, wears in the bolt hole
There is caging bolt, the caging bolt and the tapped blind hole cooperate；When the nut and the open cavity of the caging bolt
Bottom contact when, the spring is in former long status.
Further, the side of the piston towards the air extraction space is provided with spring groove, the bottom plate court of the cylinder barrel
The side of the air extraction space is provided with spring groove, the both ends of the reset spring are separately positioned on the spring groove and cylinder of piston
In the spring groove of cylinder.
Further, the piston exterior is provided with outer cover.
In the use of the present invention, bleeding point is docked with the check valve of the air outlet slit of container be connected outward, work as compression
When piston and cylinder barrel, cylinder barrel is that the sealing ring brings a downward frictional force, and sealing ring is to the deformation groove variations, out
Port is connected to air extraction space, and gas is released；When the cylinder barrel moves up, cylinder barrel be the sealing ring bring one upwards
Frictional force, the sealing ring reclines the top surface of the annular groove, thus by the inner wall two of the outer wall of the piston and the cylinder barrel
Clearance seal between person, while gas bleeding from container is to air extraction space.Above-mentioned movement repeatedly, can will be in container
Air extraction makes to form vacuum in container.Vacuum suction device of the invention relies solely on the mutual of piston, cylinder barrel and sealing ring
Effect can be realized as vacuumizing, cheap；The component of vacuum suction device of the invention is few, small in size, easy to carry, real
With conveniently.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of preferred structure of vacuum suction device of the present invention.
Fig. 2 is the structural schematic diagram of the cooperation of the piston and sealing ring in Fig. 1.
Fig. 3 is the F-F cross-sectional view of Fig. 2.
Fig. 4 is the top view of the piston in Fig. 1.
Appended drawing reference: 1- cylinder barrel；2- piston；21- outlet groove；22- deforms groove；23- venthole；3- sealing ring；4-
Gasket；5- outer cover；6- reset spring；7- caging bolt.
Specific embodiment
Further description of the specific embodiments of the present invention with reference to the accompanying drawing.
As shown in Figs 1-4, the present embodiment provides a kind of vacuum suction device, including cylinder barrel 1 and in cylinder barrel 1 with cylinder barrel 1
The piston 2 being slidably matched；Cylinder barrel 1 and piston 2 surround an air extraction space；Bleeding point is provided on piston 2；Bleeding point and pumping
Space connection；
The outer wall of piston 2 is provided with annular groove, and sealing ring 3 is provided in annular groove, for the outer wall and cylinder barrel 1 in piston 2
Inner wall sealing between the two；Gas outlet is provided on the side and bottom surface of annular groove, gas outlet includes on the side of annular groove
The outlet groove 21 of formation and the deformation groove 22 formed on the bottom surface of annular groove；When compression piston 2 and cylinder barrel 1, cylinder barrel 1
A downward frictional force is brought for sealing ring 3, sealing ring 3 is deformed to deformation groove 22, and gas outlet is connected to air extraction space；When
When cylinder barrel 1 moves up, cylinder barrel 1 is that sealing ring 3 brings a upward frictional force, and sealing ring 3 reclines the top surface of annular groove, thus
By the inner wall of the outer wall of piston 2 and cylinder barrel 1 clearance seal between the two.
Bleeding point includes that open cavity of the piston 2 far from 1 one end of cylinder barrel is arranged in, and the open side of open cavity is provided with close
Packing 4, the bottom of open cavity are provided with the venthole 23 being connected to air extraction space.
Reset spring 6 is provided between the one end of cylinder barrel 1 far from piston 2 and piston 2；The bottom of air extraction space is provided with spiral shell
Keyhole, cylinder body are provided with tapped blind hole far from one end of piston 2, and caging bolt 7, caging bolt 7 and spiral shell are equipped in bolt hole
The cooperation of line blind hole；When the bottom of the nut of caging bolt 7 and open cavity contacts, spring is in former long status.
The side of piston 2 towards air extraction space is provided with spring groove, and the bottom plate of cylinder barrel 1 is arranged towards the side of air extraction space
There is spring groove, the both ends of reset spring 6 are separately positioned in the spring groove of piston 2 and the spring groove of cylinder barrel 1.
Piston exterior is provided with outer cover, is used as decoration.
When the present embodiment is in use, bleeding point is docked with the check valve of the air outlet slit of container be connected outward, works as pressure
When contracting piston 2 and cylinder barrel 1, cylinder barrel 1 is that sealing ring 3 brings a downward frictional force, and sealing ring 3 is deformed to deformation groove 22,
The outlet groove 21 of gas outlet is connected to air extraction space, and the gas in air extraction space is via outlet groove 21, deformation groove 22, work
Gap, cylinder barrel 1 between plug 2 and cylinder barrel 1 and the gap between outer cover 5 drain into the external world；When cylinder barrel 1 moves up, cylinder barrel 1 is
Sealing ring 3 brings a upward frictional force, and sealing ring 3 reclines the top surface of annular groove, thus by the inner wall of cylinder barrel 1 and piston 2
Clearance seal between outer wall, while gas bleeding from container.Above-mentioned movement repeatedly can extract the air in container out,
Make to form vacuum in container.The vacuum suction device of the present embodiment relies solely on the interaction of piston 2, cylinder barrel 1 and sealing ring 3
It can be realized as vacuumizing, it is cheap；The component of the vacuum suction device of the present embodiment is few, small in size, easy to carry, practical
It is convenient.
Bleeding point can be set to 1,2 or multiple, such as 3,4, can be arranged according to actual conditions.
Since the present embodiment is provided with spring, when being pressed downward cylinder barrel 1 with hand, gas is released, after unclamping hand, the elastic force of spring
Cylinder barrel 1 can be made to pop up, when cylinder barrel 1 pops up, meeting gas bleeding from container, after the movement of cylinder barrel 1 stops, then
Secondary pressing cylinder barrel 1 repeatedly can be by vacuum state in container.
More than, only presently preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with sheet
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, the scope of protection of the present invention shall be subject to the scope of protection defined by the claims.
Claims (5)
1. a kind of vacuum suction device, it is characterised in that: the piston being slidably matched including cylinder barrel and in cylinder barrel with the cylinder barrel；
The cylinder barrel and piston surround an air extraction space；Bleeding point is provided on the piston；The bleeding point and the pumping are empty
Between be connected to；
The outer wall of the piston is provided with annular groove, is provided with sealing ring in the annular groove, in the piston outer wall and institute
State the sealing between the two of the inner wall of cylinder barrel；Gas outlet, the gas outlet packet are provided on the side and bottom surface of the annular groove
The deformation groove for including the outlet groove formed on the side of the annular groove and being formed on the bottom surface of the annular groove；Work as progress
When pumping, the sealing ring reclines the top surface of the annular groove, thus by both inner walls of the outer wall of the piston and the cylinder barrel
Between clearance seal；When being exhausted, the sealing ring is to the deformation groove variations, so that gas outlet and air extraction space
It is connected to and realizes exhaust；
Wherein, the bleeding point is provided with multiple.
2. vacuum suction device according to claim 1, wherein the bleeding point includes being arranged in the piston far from cylinder
The open cavity of cylinder one end, the open side of the open cavity are provided with gasket, and the bottom of the open cavity has and institute
State the venthole of air extraction space connection.
3. vacuum suction device according to claim 2, wherein the one end of the cylinder barrel far from the piston and piston it
Between be provided with reset spring；The bottom of the air extraction space is provided with bolt hole, and the cylinder barrel is provided with far from one end of piston
Tapped blind hole, caging bolt is equipped in the bolt hole, and the caging bolt and the tapped blind hole cooperate；When the limit
When the bottom of the nut of bolt and the open cavity contacts, the spring is in former long status.
4. vacuum suction device according to claim 3, wherein the piston is arranged towards the side of the air extraction space
There is spring groove, the side of bottom plate towards the air extraction space of the cylinder barrel is provided with spring groove, the both ends of the reset spring
It is separately positioned in the spring groove of piston and the spring groove of cylinder barrel.
5. vacuum suction device according to claim 1, wherein the piston exterior is provided with outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232946.4A CN106949037B (en) | 2017-04-11 | 2017-04-11 | Vacuum suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232946.4A CN106949037B (en) | 2017-04-11 | 2017-04-11 | Vacuum suction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106949037A CN106949037A (en) | 2017-07-14 |
| CN106949037B true CN106949037B (en) | 2019-06-18 |
Family
ID=59474747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710232946.4A Active CN106949037B (en) | 2017-04-11 | 2017-04-11 | Vacuum suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949037B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595156A (en) * | 2014-12-31 | 2015-05-06 | 长兴添辰模具有限公司 | Vacuumizing device |
| CN104747405A (en) * | 2015-02-27 | 2015-07-01 | 西安交通大学 | Low-temperature air cylinder working chamber component structure of liquefied natural gas vapor compressor |
| CN104763609A (en) * | 2015-03-06 | 2015-07-08 | 中国科学院理化技术研究所 | Linear compressor |
| CN206707963U (en) * | 2016-11-18 | 2017-12-05 | 陈林 | Vacuum suction device |
| CN207048927U (en) * | 2017-04-11 | 2018-02-27 | 陈林 | Vacuum suction device |
-
2017
- 2017-04-11 CN CN201710232946.4A patent/CN106949037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595156A (en) * | 2014-12-31 | 2015-05-06 | 长兴添辰模具有限公司 | Vacuumizing device |
| CN104747405A (en) * | 2015-02-27 | 2015-07-01 | 西安交通大学 | Low-temperature air cylinder working chamber component structure of liquefied natural gas vapor compressor |
| CN104763609A (en) * | 2015-03-06 | 2015-07-08 | 中国科学院理化技术研究所 | Linear compressor |
| CN206707963U (en) * | 2016-11-18 | 2017-12-05 | 陈林 | Vacuum suction device |
| CN207048927U (en) * | 2017-04-11 | 2018-02-27 | 陈林 | Vacuum suction device |
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| Publication number | Publication date |
|---|---|
| CN106949037A (en) | 2017-07-14 |
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