CN109989902A - A kind of telescopic positive displacement pump - Google Patents
A kind of telescopic positive displacement pump Download PDFInfo
- Publication number
- CN109989902A CN109989902A CN201910336127.3A CN201910336127A CN109989902A CN 109989902 A CN109989902 A CN 109989902A CN 201910336127 A CN201910336127 A CN 201910336127A CN 109989902 A CN109989902 A CN 109989902A
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- Prior art keywords
- sliding
- fixed
- adjusting
- fixedly connected
- wall
- 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
-
- 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
- F04B31/00—Free-piston pumps specially adapted for elastic fluids; Systems incorporating such pumps
-
- 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
- F04B39/0005—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 adaptations of pistons
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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
- 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
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a kind of telescopic positive displacement pumps, including the pump housing and the working chamber being set in the pump housing, cylinder mechanism is equipped in the working chamber, the cylinder mechanism includes the right shell body being fixedly connected by the first fixed ring with the work cavity wall, gliding groove is equipped in the work cavity wall, sliding is equipped with sliding block in the gliding groove, the right shell body inner wall is equipped with annular groove, sliding is equipped with ring slider in the annular groove, and the left shell is fixedly connected with the ring slider；The present invention is when needing to adjust the speed of evacuation, without adjusting output power or impeller speed, can stretch by adjusting piston thickness and by air cavity to be adjusted, adjustment process is simple and quick, step needed for adjusting is reduced, adjusting difficulty is reduced, substantially increases practicability.
Description
Technical field
The present invention relates to pump field, specifically a kind of telescopic positive displacement pumps.
Background technique
Positive displacement pump be widely used in plastics machinery, pesticide chemical, dye chemical industry, tile machinery, Cryo Equipment, papermaking equipment,
The neck such as medication chemistry, food machinery, industrial furnace, electronics industry, vacuum equipment, chemical fertilizer, metallurgy, petroleum, mine, basement process
Domain, positive displacement pump in the prior art, generally can only be by adjusting output power or adjusting leaf when needing to adjust the speed of evacuation
Wheel speed is adjusted, in the market there has been no the product of the speed of evacuation can be adjusted by stretching air cavity, for above-mentioned drawback,
Propose the present apparatus.
Summary of the invention
Deficiency in view of the above technology, the invention proposes a kind of telescopic positive displacement pumps.
The present invention is a kind of telescopic positive displacement pump, including the pump housing and the working chamber being set in the pump housing, the work
Make to be equipped with cylinder mechanism in chamber, the cylinder mechanism includes the right side being fixedly connected by the first fixed ring with the work cavity wall
Shell is equipped with gliding groove in the work cavity wall, and sliding is equipped with sliding block in the gliding groove, sets on the right shell body inner wall
There is annular groove, sliding is equipped with ring slider in the annular groove, and the left shell is fixedly connected with the ring slider, institute
It states and is connected with reset spring between ring slider and the annular groove inner wall, formed between the left shell and the right shell body
Air cavity, described air cavity or so wall are symmetrically arranged with exhaust check valve, breather check valve, the exhaust check valve and breather check valve
Outside is mounted on connecting tube, and the left shell can carry out sliding relative to the right shell body to realize stretching for the air cavity
It contracts, right wall sliding is equipped with drive rod in the air cavity, and the drive rod right end extends in the working chamber, sliding in the air cavity
Dynamic to be equipped with piston mechanism, the piston mechanism is connect with the drive rod, rear sliding slot is equipped in the working chamber rear wall, after described
Sliding is equipped with rear slider in sliding slot, and the rear slider front end face is fixed with link block, and the link block front end is fixed with electricity
Machine fixed block is fixed with motor in the motor fixed block, and the motor front end has been connected by power rotation axis, the rotation axis
Front end is fixed with turntable, and the turntable front end face is equipped with the right rail to open front, and sliding is equipped with right cunning in the right rail
Block, the right sliding block roof are fixed with electromagnet, and the electromagnet, which is powered, attracts the right sliding block to fix its position, described
Working chamber rear wall is equipped with sliding rail, and sliding is equipped with sliding block in the sliding rail, is hinged between the sliding block and the right sliding block hinged
Bar, the drive rod right end are fixedly connected with the sliding block, and regulating mechanism is equipped in the pump housing, and the regulating mechanism includes the
One adjusting rod, bracing wire, first adjusting rod are fixedly connected with second fixed ring, and described bracing wire one end and described first is adjusted
Pole connection, the other end are connect with the link block, when adjusting the left shell by first adjusting rod, the electromagnet
Power-off, the bracing wire drive the turntable to move right.
Further technical solution, the regulating mechanism include be set in the working chamber roof and up and down perforative first
Sliding slot is adjusted, upper hopper chute is equipped in the first adjusting sliding slot antetheca, is slided in the upper hopper chute and is equipped with top shoe, described first
Adjusting rod is fixedly connected with the top shoe, and the first adjusting rod rear end face is fixed with preceding skewback, and described first adjusts cunning
Slot rear wall is connected with sliding panel by spring, and the sliding panel front end face is fixed with rear skewback, it is described after skewback and it is described before
Skewback offsets, it is described first adjust sliding slot right wall in be equipped with second adjust sliding slot, it is described second adjust sliding slot in sliding be equipped with
The second adjusting rod that the sliding panel is fixedly connected is manually operable first adjusting rod, second adjusting rod adjustment institute
Stating left shell makes the air cavity be extended or be shortened, and the working chamber roof, which rotates, is equipped with rotary shaft, under the rotary shaft
End is fixed with reel, and the bracing wire carries out deflecting and fix after deflecting with the link block to connect around the reel
It connects.
Further technical solution, the piston mechanism include left piston plate, right piston plate, the left piston plate and the right side
Intermediate cavity is formed between piston plate, the drive rod left end extends in the intermediate cavity, the drive rod and the right piston
Plate is slidably matched and is equipped with rubber seal ring at cooperation, is equipped in the intermediate cavity and is fixedly connected with the drive rod periphery
Stationary annular plate, it is symmetrical above and below in the stationary annular plate to be fixed with screw shell, the left piston plate and the right piston
Plate opposing end surface is fixed with the threaded rod being threadedly engaged with the screw shell, is fixed with horse in the drive rod left side
It reaches, the motor left end is connected by power dynamic axis, and main pulley is fixed on the line shaft, is fixed on the screw shell
It equipped with secondary pulley, is sequentially connected between the secondary pulley and the main pulley by belt, it is adjustable described to start the motor
Distance between left piston plate and the right piston plate is realized and increases piston thickness.
The present invention is when needing to adjust the speed of evacuation, can be by adjusting piston without adjusting output power or impeller speed
Thickness and air cavity is stretched to be adjusted, adjustment process is simple and quick, reduces step needed for adjusting, reduces adjusting
Difficulty substantially increases practicability.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only to invent
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of overall structure diagram of telescopic positive displacement pump of the invention；
Fig. 2 is structural schematic diagram at A-A in Fig. 1；
Fig. 3 is structural schematic diagram at B-B in Fig. 1；
Fig. 4 is structural schematic diagram at C-C in Fig. 1；
Fig. 5 is structural schematic diagram at D in Fig. 1；
Fig. 6 is structural schematic diagram at E in Fig. 1.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
State, can it is equivalent by other or have similar purpose alternative features replaced.That is, unless specifically stated, each feature is
An example in a series of equivalent or similar characteristics.
As shown in figures 1 to 6, a kind of telescopic positive displacement pump of apparatus of the present invention, including the pump housing 10 and it is set to the pump housing
Working chamber 35 in 10, cylinder mechanism 300 is equipped in the working chamber 35, and the cylinder mechanism 300 includes fixed by first
The right shell body 53 that ring 11 is fixedly connected with 35 inner wall of working chamber is equipped with gliding groove 23 in 35 inner wall of working chamber, described
Sliding is equipped with sliding block 62 in gliding groove 23, and 53 inner wall of right shell body is equipped with annular groove 55, in the annular groove 55
Sliding is equipped with ring slider 57, and the left shell 54 is fixedly connected with the ring slider 57, the ring slider 57 with it is described
It is connected with reset spring 56 between 55 inner wall of annular groove, forms air cavity 25 between the left shell 54 and the right shell body 53,
25 or so the wall of air cavity is symmetrically arranged with exhaust check valve 19, breather check valve 16, the exhaust check valve 19 and air inlet list
Connecting tube 18 is mounted on the outside of to valve 16, the left shell 54 can carry out sliding relative to the right shell body 53 to realize institute
The flexible of air cavity 25 is stated, right wall sliding is equipped with drive rod 26 in the air cavity 25, and 26 right end of drive rod extends to the work
Make in chamber 35, sliding is equipped with piston mechanism 200 in the air cavity 25, and the piston mechanism 200 is connect with the drive rod 26, institute
It states and is equipped with rear sliding slot 51 in 35 rear wall of working chamber, sliding is equipped with rear slider 50,50 front end of rear slider in the rear sliding slot 51
Face is fixed with link block 38, and 38 front end of link block is fixed with motor fixed block 52, consolidates in the motor fixed block 52
Surely it is equipped with motor 49,49 front end of motor has been connected by power rotation axis 33, and 33 front end of rotation axis is fixed with turntable 34,
34 front end face of turntable is equipped with the right rail 31 to open front, and sliding is equipped with right sliding block 32, the right side in the right rail 31
32 roof of sliding block is fixed with electromagnet 29, and the electromagnet 29, which is powered, attracts the right sliding block 32 to fix its position, described
35 rear wall of working chamber is equipped with sliding rail 28, and sliding is equipped with sliding block 27 in the sliding rail 28, the sliding block 27 and the right sliding block 32 it
Between be hinged with hinge bar 30,26 right end of drive rod is fixedly connected with the sliding block 27, in the pump housing 10 be equipped with adjusting machine
Structure 100, the regulating mechanism 100 include the first adjusting rod 14, bracing wire 39, first adjusting rod 14 and second fixed ring
12 are fixedly connected, and described 39 one end of bracing wire is connect with first adjusting rod 14, the other end is connect with the link block 38, pass through
When first adjusting rod 14 adjusts the left shell 54, the electromagnet 29 is powered off, and the bracing wire 39 drives the turntable 34
It moves right.
Beneficial, the regulating mechanism 100 includes being set in 35 roof of working chamber and perforative first adjusting up and down
Sliding slot 15 is saved, is equipped with upper hopper chute 48 in the first adjusting 15 antetheca of sliding slot, sliding is equipped with top shoe 40 in the upper hopper chute 48,
First adjusting rod 14 is fixedly connected with the top shoe 40, and 14 rear end face of the first adjusting rod is fixed with preceding skewback
42, first adjusting 15 rear wall of sliding slot is connected with sliding panel 44 by spring 45, and 44 front end face of sliding panel is fixed with
Skewback 47 afterwards, the rear skewback 47 offset with the preceding skewback 42, and described first is adjusted in 15 right wall of sliding slot equipped with the second adjusting
Sliding slot 43, described second, which adjusts sliding in sliding slot 43, is equipped with the second adjusting rod 13 being fixedly connected with the sliding panel 44, can hand
Dynamic operation first adjusting rod 14, second adjusting rod 13 adjust the left shell 54 make the air cavity 25 carry out elongation or
Person shortens, and 35 roof of the working chamber rotation is equipped with rotary shaft 36, and 36 lower end of rotary shaft is fixed with reel 37, described
Bracing wire 39 carries out deflecting around the reel 37 and is fixedly connected after deflecting with the link block 38.
Beneficial, the piston mechanism 200 includes left piston plate 17, right piston plate 21, the left piston plate 17 with it is described
Intermediate cavity 68 is formed between right piston plate 21,26 left end of drive rod extends in the intermediate cavity 68, the drive rod 26
It is slidably matched with the right piston plate 21 and is equipped with rubber seal ring 22 at cooperation, be equipped with and the transmission in the intermediate cavity 68
The stationary annular plate 70 that 26 periphery of bar is fixedly connected, it is symmetrical above and below in the stationary annular plate 70 to be fixed with screw shell
69, the left piston plate 17 is fixed with the spiral shell being threadedly engaged with the screw shell 69 with 21 opposing end surface of right piston plate
Rasp bar 66 is fixed with motor 71 in 26 left side of drive rod, and 71 left end of motor is connected by power dynamic axis 64, institute
State and be fixed with main pulley 63 on line shaft 64, be fixed with secondary pulley 67 on the screw shell 69, the secondary pulley 67 with
It is sequentially connected between the main pulley 63 by belt 65, starts the motor 71 and the left piston plate 17 and the right side is adjusted
Distance between piston plate 21 is realized and increases piston thickness.
Start the motor 49 when use, drives the turntable 34 to rotate, to pass through the hinge bar 30, the transmission
Bar 26 drives the piston mechanism 200 to be acted, and realizes the function of vacuumizing, when needing small range to adjust the speed of evacuation,
The drive rod 26 and the hinge bar 30 are in straight line at this time, can start the motor 71, after the motor 71 starts, institute
It states the rotation of screw shell 69 and drives distance between the left piston plate 17 and the right piston plate 21 to change by the threaded rod 66
Become, so that the volume for accommodating gas in the air cavity 25 can be changed, realizes that the small range of the speed of evacuation changes；
When needing a wide range of adjusting speed of evacuation, manually controllable first adjusting rod 14 and second adjusting rod
13, the electromagnet 29 powers off at this time, drives the left shell 54 to be moved by second fixed ring 12, to realize
The elongation or shortening of the air cavity 25, meanwhile, first adjusting rod 14 drives the link block 38 by the bracing wire 39
It moves right, so that the turntable 34 be made to move right, the right sliding block 32 slides to the left in the right rail 31, to make
The moving distance of the hinge bar 30 is changed with the adjusting of the left shell 54, and after adjusting, the electromagnet 29 is logical
Right sliding block 32 described in electric attraction is fixed, to realize a wide range of adjusting speed of evacuation.
The beneficial effects of the present invention are:
Start the motor when use, the turntable is driven to rotate, thus by described in the hinge bar, drive rod drive
Piston mechanism is acted, and realizes the function of vacuumizing, when need small range adjust the speed of evacuation when, at this time the drive rod with
The hinge bar is in straight line, can start the motor, and after the motor starting, the screw shell rotation passes through the spiral shell
Rasp bar drives distance between the left piston plate and the right piston plate to change, and gas is accommodated in the air cavity to can be changed
Volume realizes that the small range of the speed of evacuation changes；
When needing a wide range of adjusting speed of evacuation, manually controllable first adjusting rod and second adjusting rod, this
The power-off of Shi Suoshu electromagnet drives the left shell to be moved, to realize the air cavity by second fixed ring
Elongation is shortened, meanwhile, first adjusting rod drives the link block to move right by the bracing wire, to make described
Turntable moves right, and the right sliding block slides to the left in the right rail, to make the moving distance of the hinge bar with institute
The adjusting for stating left shell is changed, and after adjusting, the electromagnet, which is powered, attracts the right sliding block to be fixed, thus real
The speed of evacuation is now adjusted on a large scale；
The present invention is when needing to adjust the speed of evacuation, can be by adjusting piston thickness without adjusting output power or impeller speed
And air cavity stretches to be adjusted, adjustment process is simple and quick, reduces step needed for adjusting, and it is difficult to reduce adjusting
Degree, substantially increases practicability.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement is both fallen in claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (3)
1. a kind of telescopic positive displacement pump, including the pump housing and the working chamber being set in the pump housing, it is characterised in that: the work
Make to be equipped with cylinder mechanism in chamber, the cylinder mechanism includes the right side being fixedly connected by the first fixed ring with the work cavity wall
Shell is equipped with gliding groove in the work cavity wall, and sliding is equipped with sliding block in the gliding groove, sets on the right shell body inner wall
There is annular groove, sliding is equipped with ring slider in the annular groove, and the left shell is fixedly connected with the ring slider, institute
It states and is connected with reset spring between ring slider and the annular groove inner wall, formed between the left shell and the right shell body
Air cavity, described air cavity or so wall are symmetrically arranged with exhaust check valve, breather check valve, the exhaust check valve and breather check valve
Outside is mounted on connecting tube, and the left shell can carry out sliding relative to the right shell body to realize stretching for the air cavity
It contracts, right wall sliding is equipped with drive rod in the air cavity, and the drive rod right end extends in the working chamber, sliding in the air cavity
Dynamic to be equipped with piston mechanism, the piston mechanism is connect with the drive rod, rear sliding slot is equipped in the working chamber rear wall, after described
Sliding is equipped with rear slider in sliding slot, and the rear slider front end face is fixed with link block, and the link block front end is fixed with electricity
Machine fixed block is fixed with motor in the motor fixed block, and the motor front end has been connected by power rotation axis, the rotation axis
Front end is fixed with turntable, and the turntable front end face is equipped with the right rail to open front, and sliding is equipped with right cunning in the right rail
Block, the right sliding block roof are fixed with electromagnet, and the electromagnet, which is powered, attracts the right sliding block to fix its position, described
Working chamber rear wall is equipped with sliding rail, and sliding is equipped with sliding block in the sliding rail, is hinged between the sliding block and the right sliding block hinged
Bar, the drive rod right end are fixedly connected with the sliding block, and regulating mechanism is equipped in the pump housing, and the regulating mechanism includes the
One adjusting rod, bracing wire, first adjusting rod are fixedly connected with second fixed ring, and described bracing wire one end and described first is adjusted
Pole connection, the other end are connect with the link block, when adjusting the left shell by first adjusting rod, the electromagnet
Power-off, the bracing wire drive the turntable to move right.
2. a kind of telescopic positive displacement pump according to claim 1, it is characterised in that: the regulating mechanism includes being set to institute
It states in working chamber roof and upper and lower perforative first adjusts sliding slot, described first is adjusted equipped with upper hopper chute in sliding slot antetheca, described
Sliding is equipped with top shoe in upper hopper chute, and first adjusting rod is fixedly connected with the top shoe, and described first adjusts rod rear end
Face is fixed with preceding skewback, and the first adjusting sliding slot rear wall is connected with sliding panel by spring, and the sliding panel front end face is solid
Surely it is equipped with rear skewback, the rear skewback offsets with the preceding skewback, is equipped with the second adjusting in the first adjusting sliding slot right wall and slides
Slot, described second, which adjusts sliding in sliding slot, is equipped with the second adjusting rod being fixedly connected with the sliding panel, is manually operable described
First adjusting rod, second adjusting rod adjustment left shell make the air cavity be extended or be shortened, the working chamber
Roof rotation is equipped with rotary shaft, and the rotary shaft lower end is fixed with reel, and the bracing wire is become around the reel
To and being fixedly connected with the link block after deflecting.
3. a kind of telescopic positive displacement pump according to claim 1, it is characterised in that: the piston mechanism includes left piston
Plate, right piston plate, form intermediate cavity between the left piston plate and the right piston plate, the drive rod left end extends to described
In intermediate cavity, the drive rod and the right piston plate are slidably matched and are equipped with rubber seal ring at cooperation, in the intermediate cavity
It is symmetrical above and below in the stationary annular plate to be fixed with spiral shell equipped with the stationary annular plate being fixedly connected with the drive rod periphery
Line sleeve, the left piston plate and the right piston plate opposing end surface are fixed with the screw thread being threadedly engaged with the screw shell
Bar, is fixed with motor in the drive rod left side, and the motor left end is connected by power dynamic axis, solid on the line shaft
Surely it is equipped with main pulley, secondary pulley is fixed on the screw shell, passes through belt between the secondary pulley and the main pulley
Transmission connection starts the motor and distance between the left piston plate and the right piston plate is adjusted, and realizes and increases piston thickness
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336127.3A CN109989902B (en) | 2019-04-24 | 2019-04-24 | Telescopic positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336127.3A CN109989902B (en) | 2019-04-24 | 2019-04-24 | Telescopic positive displacement pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109989902A true CN109989902A (en) | 2019-07-09 |
| CN109989902B CN109989902B (en) | 2021-04-09 |
Family
ID=67135168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910336127.3A Active CN109989902B (en) | 2019-04-24 | 2019-04-24 | Telescopic positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989902B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075774A (en) * | 2019-12-24 | 2020-04-28 | 上海炳标环保科技有限公司 | Adjustable injection air supplement pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319667A (en) * | 2008-06-12 | 2008-12-10 | 徐一凡 | Two-vat opposed straight-line compressor |
| GB201109776D0 (en) * | 2011-04-18 | 2011-07-27 | Hyperspin Ltd | Valve assembly and method of pumping a fluid |
| CN205858603U (en) * | 2016-08-03 | 2017-01-04 | 江西万里药业有限公司 | A kind of medical treatment and pharmacy modified model vacuum equipment |
| CN108639486A (en) * | 2018-06-05 | 2018-10-12 | 宣城市飞诚环保科技有限公司 | A kind of pneumatic control components mobile device |
-
2019
- 2019-04-24 CN CN201910336127.3A patent/CN109989902B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319667A (en) * | 2008-06-12 | 2008-12-10 | 徐一凡 | Two-vat opposed straight-line compressor |
| GB201109776D0 (en) * | 2011-04-18 | 2011-07-27 | Hyperspin Ltd | Valve assembly and method of pumping a fluid |
| CN205858603U (en) * | 2016-08-03 | 2017-01-04 | 江西万里药业有限公司 | A kind of medical treatment and pharmacy modified model vacuum equipment |
| CN108639486A (en) * | 2018-06-05 | 2018-10-12 | 宣城市飞诚环保科技有限公司 | A kind of pneumatic control components mobile device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075774A (en) * | 2019-12-24 | 2020-04-28 | 上海炳标环保科技有限公司 | Adjustable injection air supplement pump |
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| Publication number | Publication date |
|---|---|
| CN109989902B (en) | 2021-04-09 |
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Effective date of registration: 20210319 Address after: 225100 No.9 Pioneer Park, yangshou town industrial concentration zone, Hanjiang District, Yangzhou City, Jiangsu Province Applicant after: JIANGSU BOLIYUAN MACHINERY Co.,Ltd. Address before: 239 Shige Road, Zhongtai street, Yuhang District, Hangzhou City, Zhejiang Province 310000 Applicant before: HANGZHOU CHENGJIAO CLOTHING Co.,Ltd. |
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