CN109162922A - A kind of vacuum pump convenient for construction and installation - Google Patents
A kind of vacuum pump convenient for construction and installation Download PDFInfo
- Publication number
- CN109162922A CN109162922A CN201811157311.3A CN201811157311A CN109162922A CN 109162922 A CN109162922 A CN 109162922A CN 201811157311 A CN201811157311 A CN 201811157311A CN 109162922 A CN109162922 A CN 109162922A
- Authority
- CN
- China
- Prior art keywords
- shell
- fixedly connected
- damping
- vacuum pump
- construction
- 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.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
- F04C2270/125—Controlled or regulated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of vacuum pumps convenient for construction and installation, including shell, air inlet and attachment device, it is characterized in that, motor is fixedly mounted in described shell one end outer surface, the motor axle portion is fixedly connected with impeller, the impeller contacts rubber block, the rubber block connected with outer casing, the case surface is provided with air inlet, the air inlet connects water inlet line by attachment device, the surface of shell is additionally provided with exhaust outlet, the exhaust outlet is fixedly connected with outlet pipe by attachment device a, and impeller not in the housing between position, the blowing device radiates to shell by enhancing air circulation to shell, because impeller is eccentrically mounted in shell, it shakes in the process of running obvious, so being provided with damping storehouse carries out damping to it, damping colloid slows down the impact force that damping bottom plate receives in the damping storehouse, and Vibration damper plate receives the power of spring arrangement and shock structure a, to slow down the impact force that vibration damper plate receives.
Description
Technical field
The present invention relates to water ring vacuum pump field, specifically a kind of vacuum pump convenient for construction and installation.
Background technique
The efficient water ring vacuum pump of super large sucking rate, belongs to blade fluid machinery, suitable for chemical industry, coal mine, metallurgy, makes
Vacuum concentration, vacuum dehydration, vacuum drying, vacuum gas pumping gas, vacuum oxygen, vacuum handling of the industries such as paper, light industry etc.
Technical process.
Water ring vacuum pump manufacturing enterprise is although more both at home and abroad at present, but there are many problems, vacuum pump is in operational process
Middle meeting bad shocking, and inconvenience is installed, therefore, those skilled in the art provide a kind of vacuum pump convenient for construction and installation,
To solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum pumps convenient for construction and installation, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of vacuum pump convenient for construction and installation, including shell, air inlet and attachment device, described shell one end outer surface
Motor is fixedly mounted, the motor axle portion is fixedly connected with impeller, and the impeller contacts rubber block, the rubber block connected with outer casing,
The case surface is provided with air inlet, and the air inlet connects water inlet line by attachment device, and the surface of shell is also set
It is equipped with exhaust outlet, the exhaust outlet is fixedly connected with outlet pipe by attachment device a, and the housing bottom is provided with pedestal, and shell
Body is fixedly connected with fixing shell by pedestal, and fixing shell inner wall bottom is fixedly connected with blowing device, the blowing device
Surface is provided with shell；
The fixed spaced set of the fixing shell outer wall has several grooves, if fixing shell outer wall bottom is provided with
Dry magnetic metal, the magnetic metal are fixedly connected with electromagnet, and the electromagnet is fixedly connected with damping storehouse, the damping storehouse connection
Rack inner wall bottom, the bracket left and right sides are symmetrically installed motor a, and the motor a axle portion is fixedly connected with screw rod, the screw rod
Connection screw thread cylinder, the thread barrel are fixedly connected with position among support plate side, and another side surface of fixed plate is equidistantly set
Several support columns are equipped with, the support column passes through fixing shell a, and the fixing shell a is fixedly connected with limit plate, and limit plate is extremely
The gap location of fixing shell a is provided with spring arrangement.
As a further solution of the present invention: the damping storehouse includes vibration damper plate, damping shell and shock structure, the damping
Outer casing bottom is provided with damping bottom plate, and the vibration damper plate is hollow, and vibration damper plate is internally provided with several damping colloids, the bottom
Position is fixedly connected with spring arrangement among plate surface, and the spring arrangement upper end is fixedly connected with vibration damper plate, the vibration damper plate bottom
Be slidably connected damping outer casing inner wall, and described vibration damper plate bottom surface the right and left is rotatablely connected the one end shock structure a, the shock structure
The a other end is fixedly connected with damping backplate surface, and the shock structure a is rotatablely connected shock structure, and the shock structure is rotatablely connected damping
Outer casing inner wall.
As further scheme of the invention: the shock structure includes shell, spring and connecting column, and the connecting column is left
Right both ends are fixedly connected with limited block, and shell is provided at left and right sides of connecting column, and the shell is hollow shell, and shell one end
Surface is provided with through-hole, and the connecting column passes through case surface through-hole and is slidably connected shell, and limited block and outer casing inner wall gap
Place is provided with spring.
As further scheme of the invention: the shock structure a includes connecting column a, spring a and shell a, the shell
A is slidably connected connecting column a, and the shell a is internally provided with spring a, and the spring a is contacted with connecting column.
As further scheme of the invention: the air inlet includes rubber ring and pipeline, and the inner wall of the pipe is fixed
Stop collar is connected, rubber ring a is set above the stop collar, the lower surface the rubber ring a is fixedly installed filter shell, described
Pipeline connects water inlet pipe, and pipeline and water inlet pipe junction are provided with attachment device a.
As the present invention further scheme: the water inlet inner wall is provided with screw thread, the water inlet pipe outer wall and into
Water orifice inner thread is correspondingly arranged on screw thread, and the water inlet is rotatablely connected water inlet pipe, and water inlet pipe lower end is provided with rubber
Circle, the rubber ring size are correspondingly arranged with rubber ring a.
As further scheme of the invention: the attachment device a includes two sealing shrouds, rubber sealing block and nut
Device, two sealing shrouds are rotatablely connected by hinge, and the sealing shroud side-flank surfaces are provided with several rubber sealing blocks, described close
The setting of big envelope outer surface one end is provided with nut apparatus, and two nut apparatus are fixedly connected by bolt a.
As further scheme of the invention: avris is provided with several grooves at the pipe end, and on pipeline
Groove is correspondingly arranged with rubber sealing block positions and dimensions.
Compared with prior art, the beneficial effects of the present invention are:
1, this vacuum pump extracts liquid, and liquid is entered in shell by air inlet, the motor impeller rotation,
And impeller not in the housing between position, the blowing device to shell by enhance air circulation radiate to shell because
Impeller is eccentrically mounted in shell, shake in the process of running it is obvious, so be provided with damping storehouse damping is carried out to it,
In the damping storehouse damping colloid slows down the impact force that damping bottom plate receives, and vibration damper plate receives spring arrangement and shock structure a
Power, to slow down the impact force that vibration damper plate receives.
2, when needing to stablize fixed to fixing shell, fixing shell is supported on fixing shell a, electromagnet is carried out
Power supply, adsorbs electromagnet to magnetic metal, and starting motor makes screw rod matching thread cylinder move left and right support column, described
Support column can be fixed fixing shell by groove.
3, air inlet and pipeline junction are provided with filter shell, prevent sundries from entering shell and impeller is damaged,
The attachment device a can guarantee that leakproofness, this vacuum pump good damping effect are installed and simply consolidated, and good airproof performance, be suitble to
Society is widely used.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of vacuum pump convenient for construction and installation.
Fig. 2 is a kind of structural schematic diagram in damping storehouse in vacuum pump convenient for construction and installation.
Fig. 3 is a kind of structural schematic diagram of shock structure in vacuum pump convenient for construction and installation.
Fig. 4 is the structural schematic diagram of shock structure a in vacuum pump convenient for construction and installation a kind of.
Fig. 5 is the connection schematic diagram of air inlet and water inlet pipe in a kind of vacuum pump convenient for construction and installation.
Fig. 6 is the structural schematic diagram of attachment device a in vacuum pump convenient for construction and installation a kind of.
In figure: 1- air inlet, 2- attachment device, 3- impeller, 4- rubber block, 5- motor, 6- exhaust outlet, 7- attachment device a,
8- fixing shell, 9- groove, 10- fixing shell a, 11- limit plate, 12- spring arrangement, 13- support column, 14- support plate, 15-
Thread barrel, 16- motor a, 17- screw rod, 18- bracket, 19- bolt, 20- blowing device, 21- magnetic metal, 22- electromagnet, 23-
Damping storehouse, 24- shell, 101- vibration damper plate, 102- damping shell, 103- shock structure, 104- shock structure a, 105- damping colloid,
106- spring arrangement, 107- damping bottom plate, 201- shell, 202- spring, 203- connecting column, 204- limited block, 301- connecting column
A, 302- spring a, 303- shell a, 401- water inlet pipe, 403- rubber ring, 404- rubber ring a, 405- stop collar, 406- filtering are outer
Shell, 407- pipeline, 501- sealing shroud, 502- rubber sealing block, 503- nut apparatus, 504- bolt a, 505- hinge.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~6, in the embodiment of the present invention, a kind of vacuum pump convenient for construction and installation, including shell 24, air inlet
Motor 5 is fixedly mounted in mouth 1 and attachment device 2,24 one end outer surface of shell, and 5 axle portion of motor is fixedly connected with impeller 3,
The impeller 3 contacts rubber block 4,4 connected with outer casing 24 of rubber block, and 24 surface of shell is provided with air inlet 1, it is described into
Port 1 connects water inlet line by attachment device 2, and 24 surface of shell is additionally provided with exhaust outlet 6, and the exhaust outlet 6 passes through
Attachment device a7 is fixedly connected with outlet pipe, and 24 bottom of shell is provided with pedestal, and shell 24 is fixedly connected by pedestal
Determine shell 8, the 8 inner wall bottom of fixing shell is fixedly connected with blowing device 20, is provided with shell right above the blowing device 20
Body 24；
The fixed spaced set of 20 outer wall of fixing shell has several grooves 9,8 outer wall bottom of the fixing shell setting
There are several magnetic metals 21, the magnetic metal 21 is fixedly connected with electromagnet 22, and the electromagnet 22 is fixedly connected with damping storehouse 23,
23 connecting bracket of damping storehouse, the 18 inner wall bottom is symmetrically installed motor a16, the motor a16 at left and right sides of the bracket 18
Axle portion is fixedly connected with screw rod 17, the 17 connection screw thread cylinder 15 of screw rod, and the thread barrel 15 is fixedly connected in 14 side of support plate
Between position, another side surface spaced set of the fixed plate 14 has several support columns 13, and the support column 13 passes through fixed outer
Shell a10, the fixing shell a10 is fixedly connected with limit plate 11, and the gap location of limit plate 11 to fixing shell a10 are provided with bullet
Spring device 12.
The damping storehouse 23 includes vibration damper plate 101, damping shell 102 and shock structure 103,102 bottom of damping shell
It is provided with damping bottom plate 107, the vibration damper plate 107 is hollow, and vibration damper plate 107 is internally provided with several damping colloids 105, institute
It states position among 107 surface of bottom plate and is fixedly connected with spring arrangement 106,106 upper end of spring arrangement is fixedly connected with vibration damper plate
101,101 basal sliding of vibration damper plate connects 102 inner wall of damping shell, and described 101 bottom surface the right and left of vibration damper plate turns
Dynamic connection one end shock structure a104, the shock structure a104 other end are fixedly connected with 107 surface of damping bottom plate, the shock structure
A104 is rotatablely connected shock structure 103, and the shock structure 103 is rotatablely connected 102 inner wall of damping shell.
The shock structure 103 includes shell 201, spring 202 and connecting column 203, and 203 left and right ends of connecting column are fixed
Limited block 204 is connected, and is provided with shell 201 at left and right sides of connecting column 203, the shell 201 is hollow shell, and shell
201 end surfaces are provided with through-hole, and the connecting column 201 passes through 201 surface through-hole of shell and is slidably connected shell 201, and limits
Block 204 and 201 inner wall gap location of shell are provided with spring 202.
The shock structure a104 includes connecting column a301, spring a302 and shell a303, and the shell a303 is slidably connected
Connecting column a301, the shell a303 are internally provided with spring a302, and the spring a302 is contacted with connecting column 301.
The air inlet 1 includes rubber ring 403 and pipeline 407, and 407 inner wall of pipeline is fixedly connected with stop collar 405, institute
Setting rubber ring a404 above stop collar 405 is stated, the lower surface the rubber ring a404 is fixedly installed filter shell 406, described
Pipeline 407 connects water inlet pipe 401, and pipeline 407 and 401 junction of water inlet pipe are provided with attachment device a7.
1 inner wall of water inlet is provided with screw thread, and 401 outer wall of water inlet pipe is corresponding with 1 inner thread of water inlet to be set
It is equipped with screw thread, the water inlet 1 is rotatablely connected water inlet pipe 401, and 401 lower end of water inlet pipe is provided with rubber ring 403, the rubber
403 sizes are enclosed to be correspondingly arranged with rubber ring a403.
The attachment device a7 includes two sealing shrouds 501, rubber sealing block 502 and nut apparatus 503, two sealing shrouds
501 are rotatablely connected by hinge 505, and 501 side-flank surfaces of sealing shroud are provided with several rubber sealing blocks 502, the sealing
It covers the setting of 501 outer surface one end and is provided with nut apparatus 503, and two nut apparatus 503 are fixedly connected by bolt a504.
Avris is provided with several grooves, and the groove on pipeline 407 and rubber sealing block 502 at 407 port of pipeline
Positions and dimensions are correspondingly arranged.
The working principle of the invention is:
This vacuum pump extracts liquid, and liquid is entered in shell 24 by air inlet 1, and described 3 turns of 5 impeller of motor
It is dynamic, and impeller 3 is or not the intermediate position of shell 24, the blowing device 20 to shell 24 by enhancing air circulation to shell 24 into
Row heat dissipation because impeller 3 is eccentrically mounted in shell 24, shake in the process of running it is obvious, so be provided with damping
Storehouse 23 carries out damping to it, and damping colloid 105 slows down the impact force that damping bottom plate 107 receives in the damping storehouse 23, and damping
Plate 101 receives the power of spring arrangement 106 and shock structure a104, to slow down the impact force that vibration damper plate 101 receives, when needs pair
When fixing shell 8 stablizes fixed, fixing shell 8 is supported on fixing shell a10, electromagnet 22 is powered, electromagnetism is made
Iron 22 adsorbs magnetic metal 21, and starting motor 16 makes 17 matching thread cylinder 15 of screw rod move left and right support column 13, institute
Fixing shell 8 can be fixed by groove 9 by stating support column 13, be provided in air inlet 401 and 407 junction of pipeline
Filter outer housing 406 prevents sundries from entering shell 24 and damages to impeller, and the attachment device a7 can guarantee leakproofness, reality
Sky pump good damping effect, installs and simply consolidates, and good airproof performance, suitable society are widely used.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of vacuum pump convenient for construction and installation, including shell, air inlet and attachment device, which is characterized in that the shell
Motor is fixedly mounted in one end outer surface, and the motor axle portion is fixedly connected with impeller, and the impeller contacts rubber block, the rubber block
Connected with outer casing, the case surface are provided with air inlet, and the air inlet connects water inlet line, the shell by attachment device
Surface is additionally provided with exhaust outlet, and the exhaust outlet is fixedly connected with outlet pipe by attachment device a, and the housing bottom is provided with bottom
Seat, and shell is fixedly connected with fixing shell by pedestal, fixing shell inner wall bottom is fixedly connected with blowing device, described to blow
Shell is provided with right above wind apparatus；
The fixed spaced set of the fixing shell outer wall has several grooves, and fixing shell outer wall bottom is provided with several magnetic
Property metal, the magnetic metal are fixedly connected with electromagnet, and the electromagnet is fixedly connected with damping storehouse, damping storehouse connecting bracket
Inner wall bottom, the bracket left and right sides are symmetrically installed motor a, and the motor a axle portion is fixedly connected with screw rod, the screw rod connection
Thread barrel, the thread barrel are fixedly connected with position among support plate side, and another side surface spaced set of fixed plate has
Several support columns, the support column pass through fixing shell a, and the fixing shell a is fixedly connected with limit plate, and limit plate is to fixation
The gap location of shell a is provided with spring arrangement.
2. a kind of vacuum pump convenient for construction and installation according to claim 1, which is characterized in that the damping storehouse includes subtracting
Shake plate, damping shell and shock structure, the damping outer casing bottom is provided with damping bottom plate, and the vibration damper plate is hollow, and damping
Intralamellar part is provided with several damping colloids, and position is fixedly connected with spring arrangement among the backplate surface, on the spring arrangement
End is fixedly connected with vibration damper plate, and the vibration damper plate basal sliding connects damping outer casing inner wall, described vibration damper plate bottom surface or so two
Side is rotatablely connected the one end shock structure a, and the shock structure a other end is fixedly connected with damping backplate surface, and the shock structure a rotation connects
Shock structure is connect, the shock structure is rotatablely connected damping outer casing inner wall.
3. a kind of vacuum pump convenient for construction and installation according to claim 2, which is characterized in that the shock structure includes outer
Shell, spring and connecting column, the connecting column left and right ends are fixedly connected with limited block, and are provided with shell at left and right sides of connecting column,
The shell is hollow shell, and shell end surface is provided with through-hole, and the connecting column passes through the sliding of case surface through-hole and connects
Shell is connect, and limited block and outer casing inner wall gap location are provided with spring.
4. a kind of vacuum pump convenient for construction and installation according to claim 2, which is characterized in that the shock structure a includes
Connecting column a, spring a and shell a, the shell a are slidably connected connecting column a, and the shell a is internally provided with spring a, the bullet
Spring a is contacted with connecting column.
5. a kind of vacuum pump convenient for construction and installation according to claim 1, which is characterized in that the air inlet includes rubber
Cushion rubber and pipeline, the inner wall of the pipe is fixedly connected with stop collar, above the stop collar under setting rubber ring a, the rubber ring a
Surface is fixedly installed filter shell, and the pipeline connects water inlet pipe, and pipeline and water inlet pipe junction are provided with attachment device
a。
6. a kind of vacuum pump convenient for construction and installation according to claim 5, which is characterized in that the water inlet inner wall is set
Be equipped with screw thread, the water inlet pipe outer wall and water inlet inner thread are correspondingly arranged on screw thread, the water inlet be rotatablely connected into
Water pipe, and water inlet pipe lower end is provided with rubber ring, the rubber ring size is correspondingly arranged with rubber ring a.
7. a kind of vacuum pump convenient for construction and installation according to claim 1, which is characterized in that the attachment device a packet
Two sealing shrouds, rubber sealing block and nut apparatus are included, two sealing shrouds are rotatablely connected by hinge, the sealing shroud avris table
Face is provided with several rubber sealing blocks, and the setting of sealing shroud outer surface one end is provided with nut apparatus, and two nut dresses
It sets and is fixedly connected by bolt a.
8. a kind of vacuum pump convenient for construction and installation according to claim 6 or 7, which is characterized in that the pipe end
Place's avris is provided with several grooves, and the groove on pipeline is correspondingly arranged with rubber sealing block positions and dimensions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157311.3A CN109162922A (en) | 2018-09-30 | 2018-09-30 | A kind of vacuum pump convenient for construction and installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157311.3A CN109162922A (en) | 2018-09-30 | 2018-09-30 | A kind of vacuum pump convenient for construction and installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162922A true CN109162922A (en) | 2019-01-08 |
Family
ID=64877378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811157311.3A Withdrawn CN109162922A (en) | 2018-09-30 | 2018-09-30 | A kind of vacuum pump convenient for construction and installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377410A (en) * | 2020-11-10 | 2021-02-19 | 湖南创源生物科技有限公司 | Sealed effectual mechanical vacuum pump |
-
2018
- 2018-09-30 CN CN201811157311.3A patent/CN109162922A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377410A (en) * | 2020-11-10 | 2021-02-19 | 湖南创源生物科技有限公司 | Sealed effectual mechanical vacuum pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190108 |