CN109162886A - A kind of leakproof chemical agent measuring fixed amount pump easy to disassemble - Google Patents
A kind of leakproof chemical agent measuring fixed amount pump easy to disassemble Download PDFInfo
- Publication number
- CN109162886A CN109162886A CN201811004975.6A CN201811004975A CN109162886A CN 109162886 A CN109162886 A CN 109162886A CN 201811004975 A CN201811004975 A CN 201811004975A CN 109162886 A CN109162886 A CN 109162886A
- Authority
- CN
- China
- Prior art keywords
- valve
- chemical agent
- fixed amount
- floating ball
- agent measuring
- 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- Withdrawn
Links
- 239000000126 substance Substances 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 9
- 230000001939 inductive effect Effects 0.000 claims description 9
- 241001465382 Physalis alkekengi Species 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910004682 ON-OFF Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
Abstract
The invention discloses a kind of leakproof chemical agent measuring fixed amounts easy to disassemble to pump, its structure includes: discharge device, connection valve, valve seat, plug cock, grease-box, driving box, motor, terminal board, the connector of discharge device is respectively nested in the left side and bottom of connection valve, connection valve is installed in the left side of valve seat, and the two axle center is in a straight line, it combines together on the left of grease-box with the flange of valve seat, to sum up, the present invention passes through elastic automatic back flow when having a power failure maintenance in end to avoid the trouble in maintenance after improving, and the case where corrosion is caused to other component, and the chemical reagent in pipe can be made sufficiently to recycle the waste situation for avoiding raw material.
Description
Technical field
The present invention relates to a kind of metering pumps, are a kind of leakproof chemical agent measuring fixed amount pumps easy to disassemble particularly.
Background technique
Metering pump is also known as proportioning pump because the quantitative tune for conveying liquid and being widely used in chemical reagent can be carried out accurately
In matching, but since there are certain corrosivenesses is needed after a period of time has passed to internal diaphragm progress more for chemical reagent
It changes but is more easy to appear some problems in shield:
1, metering pump needs to place vertically at work, in order to avoid the pipeline that the phenomenon that siphon exports occur equal for liquid
Higher than metering pump, certain liquid residual is had in output channel when stopping working, since the valve ball at top can
Reflux is inhibited therefore to be more troublesome when carrying out pipeline disassembly to residual liquid processing in pipe.
2, chemical reagent is in pipeline during first gradually release valve flows out chemical reagent during pipeline disassembly
In longer structure, due to the case where will appear splash under the action of liquid pressure, on the one hand it is easy to remain in outside valve body and makes
At corrosion, and it can also make wastage of material.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of leakproof easy to disassemble
Medicament measuring fixed amount pump is learned, structure includes: discharge device, connection valve, valve seat, plug cock, grease-box, driving box, motor, end
Sub- box, the connector of the discharge device are respectively nested in the left side and bottom of connection valve, and the connection valve is installed in valve seat
Left side, and the two axle center is in a straight line, is combined together on the left of the grease-box with the flange of valve seat, and the internal screw thread at top
It is mutually fixed with the external screw thread of plug cock bottom, the motor is vertically installed in the top of driving box, the shell and terminal of the motor
Box is connected by screw to, and internal circuit is connected to by conducting wire, its internal structure of the discharge device is by fluid stopping mechanism, company
Adapter tube, sealing valve, hold-doun nut, communicating valve composition, the lantern ring of the fluid stopping actuator base and tube head at the top of connecting tube are close
It fastens, the connecting tube is in type, and connector internal screw thread and the external screw thread on the left of sealing valve of bottom are mutually fixed, the hold-doun nut water
Safety is located at the bottom of communicating valve, and axle center is opposite and connects with top connection valve.
As a further improvement of the present invention, the fluid stopping mechanism is by Chu Liucang, sealing plate, induction floating ball, connector sleeve group
At.
As a further improvement of the present invention, in surrounding's table wall insertion storage stream storehouse inner wall groove of the sealing plate, and pass through
Sealing is fixed, and the induction floating ball is corresponding with storage stream orlop portion circular groove, and the connector sleeve is fixed on the center in storage stream orlop portion,
And by being welded and fixed.
As a further improvement of the present invention, storage stream storehouse is installed in the left side of connection valve, and position is higher than inside
Upper ball valve, the connector sleeve is fitted closely with end at the top of connecting tube, and is communicated with the communicating valve of bottom.
As a further improvement of the present invention, the induction floating ball is by color lump, synchronizing bar, sliding block, floating ball, big envelope.
As a further improvement of the present invention, the card slot on the right side of the color lump is mutually nested with head on the left of synchronizing bar, institute
It states synchronizing bar to be installed at left and right sides of sliding block, and the right side body of rod is mutually fixed with floating ball, the big envelope is wrapped in the outer wall of floating ball, and
Glue connection is fixed.
As a further improvement of the present invention, the color lump is installed in the left side of storage stream storehouse inner seal plate, and flows with storage
Storehouse is there are small gap, there are two the sliding block is set, is symmetrically installed in the left and right sides of sealing plate.
As a further improvement of the present invention, the storage stream storehouse inner wall has corrosion-resistant coating, and is transparent material.
As a further improvement of the present invention, the floating ball is hollow structure, floats on liquid level.
As a further improvement of the present invention, the sealing valve is movable, and sole mass weight is solid in no bottom
Determine to be unclamped by hydraulic pressure and self gravity in the case where nut support.
The beneficial effects of the present invention are: 1, internal discharge device can detect internal pipeline liquid, operator
Member makes raffinate in pipe carry out aerial drainage by the hold-doun nut of bottom to sealing valve on-off, and liquid flows back in pipe, will not go out
The case where existing splash leakage, and trickle can be sealed up for safekeeping liquid by floating ball, it is very big to being provided in the work of dismounting metering pump
Convenience.
2, the threeway that the communicating valve of sealing valve connection is formed can be avoided there is the case where splash in reflux, and two companies
Adapter tube enables the speed of reflux faster, manages interior chemical reagent when not influencing to measure pump work, carries out sufficiently recycling and keeps away
The case where having exempted from waste.
In conclusion the present invention passes through elastic automatic back flow when having a power failure maintenance in end to avoid repairing after improving
On trouble, and the case where cause corrosion to other component, and the chemical reagent in pipe can be made sufficiently to recycle and avoid original
The waste situation of material.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of leakproof chemical agent measuring fixed amount pump easy to disassemble of the present invention.
Fig. 2 is the structural schematic diagram of discharge device of the present invention.
Fig. 3 is the A structural schematic diagram of Fig. 2 of the present invention.
The B structure that Fig. 4 is Fig. 2 of the present invention is driven schematic diagram.
In figure: discharge device -1, connection valve -2, valve seat -3, plug cock -4, grease-box -5, driving box -6, motor -7, end
Sub- box -8, fluid stopping mechanism -11, connecting tube -12, sealing valve -13, hold-doun nut -14, communicating valve -15, Chu Liucang -111, sealing
Plate -112, induction floating ball -113, connector sleeve -114, color lump -11a, synchronizing bar -11b, sliding block -11c, floating ball -11d, big envelope -
11e。
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, FIG. 1 to FIG. 4
The structure of the metering pump of embodiment of the present invention is schematically shown, With reference to embodiment, this is further described
Invention.
Embodiment
As Figure 1-Figure 4, the present invention provides a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble, structure packet
It includes: discharge device 1, connection valve 2, valve seat 3, plug cock 4, grease-box 5, driving box 6, motor 7, terminal board 8, the discharge device
1 connector is respectively nested in the left side and bottom of connection valve 2, and the connection valve 2 is installed in the left side of valve seat 3, and the two
Axle center is in a straight line, and 5 left side of grease-box and the flange of valve seat 3 combine together, and the internal screw thread at top and 4 bottom of plug cock
External screw thread mutually fix, the motor 7 is vertically installed in the top of driving box 6, and shell and the terminal board 8 of the motor 7 pass through
Screw connection, and internal circuit is by conducting wire connection, described its internal structure of discharge device 1 is by fluid stopping mechanism 11, connecting tube
12, sealing valve 13, hold-doun nut 14, communicating valve 15 form, 12 top of lantern ring and connecting tube of 11 bottom of fluid stopping mechanism
Tube head closely fastens, and the connecting tube 12 is L-shaped, and connector internal screw thread and the 13 left side external screw thread of sealing valve of bottom are mutually fixed,
14 level of hold-doun nut is installed in the bottom of communicating valve 15, and axle center is opposite and connects with top connection valve 2.
As a further improvement of the present invention, the fluid stopping mechanism 11 is by storage stream storehouse 111, sealing plate 112, induction floating ball
113, connector sleeve 114 forms.
As a further improvement of the present invention, in surrounding's table wall insertion storage stream 111 inner wall groove of storehouse of the sealing plate 112,
And fixed by sealing, the induction floating ball 113 is corresponding with storage stream 111 bottom circular groove of storehouse, and the connector sleeve 114 is fixed on storage
The center of 111 bottom of storehouse is flowed, and by being welded and fixed.
As a further improvement of the present invention, storage stream storehouse 111 is installed in the left side of connection valve 2, and position is higher than interior
The upper ball valve in portion, the connector sleeve 114 is fitted closely with 12 top end of connecting tube, and is communicated with the communicating valve of bottom 15.
As a further improvement of the present invention, the induction floating ball 113 is by color lump 11a, synchronizing bar 11b, sliding block 11c, floating
Ball 11d, big envelope 11e.
As a further improvement of the present invention, the card slot on the right side of the color lump 11a and head on the left of synchronizing bar 11b are mutually embedding
Set, the synchronizing bar 11b is installed at left and right sides of sliding block 11c, and the right side body of rod is fixed with floating ball 11d phase, the big envelope 11e packet
It is rolled in the outer wall of floating ball 11d, and glue connection is fixed.
As a further improvement of the present invention, the color lump 11a is installed in the left side of storage stream 111 inner seal plate 112 of storehouse,
And with storage stream storehouse 111 there are small gap, the sliding block 11c is symmetrically installed in the left and right of sealing plate 112 there are two setting
Two sides.
As a further improvement of the present invention, storage stream 111 inner wall of storehouse has corrosion-resistant coating, and is transparent material.
As a further improvement of the present invention, the floating ball 11d is hollow structure, floats on liquid level.
As a further improvement of the present invention, the sealing valve 13 is movable, and sole mass weight, in no bottom
Hold-doun nut 14 can be unclamped in the case where supporting by hydraulic pressure and self gravity.
The crank connecting link in the driving box 6 of bottom is driven by motor 7 to carry out transfer tube to the valve inside valve seat 3
Oil, since the working characteristics of the valve pearl at 2 top of connection valve is exactly the chemistry examination that can inhibit in head tube when being replaced
Agent flows back, therefore needs to clear up internal reagent when separate efferent duct.
Incude simultaneously the storage where floating ball flow storehouse 111 can the efferent duct at top in the case where be opaque to inner product
Liquid number observed, by the hold-doun nut 14 of bottom and explosive barrel point when needing that internal chemical reagent is discharged
From the block of sealing valve 13 can move down under gravity at this time penetrates through the connecting tube 12 at top, and then to retaining
Reagent flow back.
The water outlet that floating ball 113 can fall along sealing plate 112 and then block storage stream 111 bottom of storehouse is incuded after reflux
Mouth carries out stopping to facilitate operator that can quickly replace to some threads, will not secondary outflow chemistry during replacement
Reagent influences operation.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this
The range of invention is indicated by the appended claims rather than the foregoing description, it is intended that the equivalent requirements of the claims will be fallen in
All changes in meaning and scope are included within the present invention.It should not treat any reference in the claims as limitation institute
The claim being related to.
Claims (7)
1. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble, structure includes: discharge device (1), connection valve (2), valve
Seat (3), plug cock (4), grease-box (5), driving box (6), motor (7), terminal board (8), it is characterised in that:
The connector of the discharge device (1) is respectively nested in the left side and bottom of connection valve (2), connection valve (2) peace
It is located at the left side of valve seat (3), and the two axle center is in a straight line, it is one that the flange of grease-box (5) left side and valve seat (3), which melts,
Body, and the internal screw thread at top and the external screw thread of plug cock (4) bottom are mutually fixed, the motor (7) is vertically installed in driving box (6)
Top, shell and the terminal board (8) of the motor (7) are connected by screw to, and internal circuit is connected to by conducting wire；
Described its internal structure of discharge device (1) is by fluid stopping mechanism (11), connecting tube (12), sealing valve (13), hold-doun nut
(14), communicating valve (15) forms, and the lantern ring of fluid stopping mechanism (11) bottom is closely fastened with the tube head at the top of connecting tube (12),
The connecting tube (12) is L-shaped, and connector internal screw thread and the external screw thread on the left of sealing valve (13) of bottom are mutually fixed, the fixed spiral shell
Cap (14) level is installed in the bottom of communicating valve (15), and axle center is opposite and connects with top connection valve (2).
2. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble according to claim 1, it is characterised in that: described to stop
Stream mechanism (11) is made of Chu Liucang (111), sealing plate (112), induction floating ball (113), connector sleeve (114).
3. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble according to claim 2, it is characterised in that: described close
In surrounding's table wall insertion Chu Liucang (111) inner wall groove of sealing plate (112), and fixed by sealing, the induction floating ball (113) and
Chu Liucang (111) bottom circular groove is corresponding, and the connector sleeve (114) is fixed on the center of Chu Liucang (111) bottom, and passes through weldering
Connect fixation.
4. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble according to claim 1 or 2, it is characterised in that: institute
The left side that Chu Liucang (111) is installed in connection valve (2) is stated, and position is higher than internal upper ball valve, the connector sleeve (114) and company
End fits closely at the top of adapter tube (12), and communicates with the communicating valve of bottom (15).
5. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble according to claim 2, it is characterised in that: the sense
Answer floating ball (113) by color lump (11a), synchronizing bar (11b), sliding block (11c), floating ball (11d), big envelope (11e).
6. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble according to claim 5, it is characterised in that: the color
Card slot on the right side of block (11a) is mutually nested with head on the left of synchronizing bar (11b), and the synchronizing bar (11b) is installed in sliding block (11c)
The left and right sides, and the right side body of rod is mutually fixed with floating ball (11d), the big envelope (11e) is wrapped in the outer wall of floating ball (11d), and glue
It is connected and fixed.
7. a kind of leakproof chemical agent measuring fixed amount pump easy to disassemble according to claim 5 or 6, it is characterised in that: institute
The left side that color lump (11a) is installed in Chu Liucang (111) inner seal plate (112) is stated, and there are small seams with Chu Liucang (111)
Gap, the sliding block (11c) are symmetrically installed in the left and right sides of sealing plate (112) there are two setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004975.6A CN109162886A (en) | 2018-08-30 | 2018-08-30 | A kind of leakproof chemical agent measuring fixed amount pump easy to disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004975.6A CN109162886A (en) | 2018-08-30 | 2018-08-30 | A kind of leakproof chemical agent measuring fixed amount pump easy to disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162886A true CN109162886A (en) | 2019-01-08 |
Family
ID=64893493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811004975.6A Withdrawn CN109162886A (en) | 2018-08-30 | 2018-08-30 | A kind of leakproof chemical agent measuring fixed amount pump easy to disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162886A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2190173Y (en) * | 1994-03-23 | 1995-02-22 | 巩义市嵩岳水用器材厂 | Separate metering pump |
| CN2828380Y (en) * | 2005-10-13 | 2006-10-18 | 南京红宝丽股份有限公司 | Diaphragm metering pump |
| CN201215182Y (en) * | 2008-05-20 | 2009-04-01 | 郑州宇通重工有限公司 | On-off valve suitable for plugging and liquid working medium container and discharging medium |
| US8048308B2 (en) * | 2006-01-30 | 2011-11-01 | Commissariat A L'energie Atomique | Process for separating at least one actinide element from lanthanide elements in an aqueous medium by sequestration and membrane filtration |
| CN202158354U (en) * | 2011-05-13 | 2012-03-07 | 云南大红山管道有限公司 | Pipeline pressure release and drainage device |
| CN103736599A (en) * | 2014-01-14 | 2014-04-23 | 中国矿业大学(北京) | Full-automatic flotation reagent quantitative adding system |
| CN204299837U (en) * | 2014-11-14 | 2015-04-29 | 浙江巨圣氟化学有限公司 | A kind of metering pump being applied to production teflon |
| CN205379818U (en) * | 2016-02-22 | 2016-07-13 | 广州市宝源节能环保科技有限公司 | Potassium permanganate solution dosing system |
| CN205400672U (en) * | 2016-02-29 | 2016-07-27 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Dosing device for oil well |
| CN206238297U (en) * | 2016-08-29 | 2017-06-13 | 浙江绍兴伊曼食品有限公司 | A kind of feeding device of ice-cream stick production line |
| CN206566851U (en) * | 2017-03-12 | 2017-10-20 | 广西农垦糖业集团良圻制糖有限公司 | A kind of cane sugar manufacture technical process phosphoric acid adding set |
| CN207025181U (en) * | 2017-07-26 | 2018-02-23 | 泰州泰丰泵业有限公司 | A kind of dosing metering pump system |
| CN207397110U (en) * | 2017-11-22 | 2018-05-22 | 新兴铸管股份有限公司 | Liquid-level auto-control device |
| CN207470819U (en) * | 2017-11-24 | 2018-06-08 | 苏州润伦机械有限公司 | The tubular valves of L |
-
2018
- 2018-08-30 CN CN201811004975.6A patent/CN109162886A/en not_active Withdrawn
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2190173Y (en) * | 1994-03-23 | 1995-02-22 | 巩义市嵩岳水用器材厂 | Separate metering pump |
| CN2828380Y (en) * | 2005-10-13 | 2006-10-18 | 南京红宝丽股份有限公司 | Diaphragm metering pump |
| US8048308B2 (en) * | 2006-01-30 | 2011-11-01 | Commissariat A L'energie Atomique | Process for separating at least one actinide element from lanthanide elements in an aqueous medium by sequestration and membrane filtration |
| CN201215182Y (en) * | 2008-05-20 | 2009-04-01 | 郑州宇通重工有限公司 | On-off valve suitable for plugging and liquid working medium container and discharging medium |
| CN202158354U (en) * | 2011-05-13 | 2012-03-07 | 云南大红山管道有限公司 | Pipeline pressure release and drainage device |
| CN103736599A (en) * | 2014-01-14 | 2014-04-23 | 中国矿业大学(北京) | Full-automatic flotation reagent quantitative adding system |
| CN204299837U (en) * | 2014-11-14 | 2015-04-29 | 浙江巨圣氟化学有限公司 | A kind of metering pump being applied to production teflon |
| CN205379818U (en) * | 2016-02-22 | 2016-07-13 | 广州市宝源节能环保科技有限公司 | Potassium permanganate solution dosing system |
| CN205400672U (en) * | 2016-02-29 | 2016-07-27 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Dosing device for oil well |
| CN206238297U (en) * | 2016-08-29 | 2017-06-13 | 浙江绍兴伊曼食品有限公司 | A kind of feeding device of ice-cream stick production line |
| CN206566851U (en) * | 2017-03-12 | 2017-10-20 | 广西农垦糖业集团良圻制糖有限公司 | A kind of cane sugar manufacture technical process phosphoric acid adding set |
| CN207025181U (en) * | 2017-07-26 | 2018-02-23 | 泰州泰丰泵业有限公司 | A kind of dosing metering pump system |
| CN207397110U (en) * | 2017-11-22 | 2018-05-22 | 新兴铸管股份有限公司 | Liquid-level auto-control device |
| CN207470819U (en) * | 2017-11-24 | 2018-06-08 | 苏州润伦机械有限公司 | The tubular valves of L |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20190108 |
|
| WW01 | Invention patent application withdrawn after publication |