CN110790328A - Electronic pulse fluid quantitative conveyor - Google Patents
Electronic pulse fluid quantitative conveyor Download PDFInfo
- Publication number
- CN110790328A CN110790328A CN201911218266.2A CN201911218266A CN110790328A CN 110790328 A CN110790328 A CN 110790328A CN 201911218266 A CN201911218266 A CN 201911218266A CN 110790328 A CN110790328 A CN 110790328A
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- China
- Prior art keywords
- electronic pulse
- module
- driving
- pulse fluid
- fluid metering
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- 239000012530 fluid Substances 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 19
- 239000003814 drug Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005188 flotation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
Abstract
The invention provides an electronic pulse fluid quantitative conveyor which comprises a driving device and a quantitative conveying mechanism; the quantitative conveying mechanism comprises a conveying part controlled by the driving device, a piston part arranged at the tail end of the conveying part, a driving pump head matched with and accommodating the piston part, and a liquid inlet pipe and a liquid outlet pipe which are arranged on the driving pump head at an angle. The conveying part is controlled by the driving device, so that the piston part moves left and right in the driving pump head to suck and discharge liquid, the liquid discharge amount is the same every time, and the output precision is high. The hydraulic drive is not used, no water hammer effect occurs, and the safety performance is high. The volume is small, the structure is simple, and the installation and the maintenance are more convenient.
Description
Technical Field
The invention relates to the technical field of adding water treatment agents, in particular to an electronic pulse fluid quantitative conveyor.
Background
At present, in the use process of adding metering medicaments in environmental protection machinery, water treatment equipment and various industries, a medicament adding treatment link is required.
In a metering pump type dosing machine in the current market, the rotating speed of a motor on the metering pump dosing machine is controlled by adjusting the frequency of the motor through a 4-20 ma communication interface of plc, so that the purpose of controlling the flow is achieved; because the linear relation between the motor frequency and the rotating speed is not obvious, the output flow precision error is large and can reach 15 percent at most. (ii) a Because the flotation reagent can produce crystal and impurity in the preparation process, the problem of easy cork appears in metering pump type dosing. And the diaphragm of the metering pump can not give an alarm after being broken, so that the safety is poor, the volume is large, and the installation and the maintenance are inconvenient.
Chinese utility model patent with publication number CN204851577U discloses a pulsating hydraulic numerical control multi-head dosing pump. The water is used as a power medium to drive the pulsation dosing machine to work, a water inlet valve and a water discharge valve in a plurality of pulsation dosing machines controlled by a PLC are respectively connected with a main water inlet pipe and a main water return pipe in parallel and then are arranged on a chair-shaped support, one end of the main water inlet pipe is connected with a water pump, the other end of the main water inlet pipe is connected with a shock absorber, the water inlet of the water pump is connected with a water tank, and the. The medicament delivery of this patent is less continuous resulting in intermittent medicament delivery at the outlet. In the flotation process, the better the addition continuity and uniformity of the medicament are, the more beneficial the indexes of the flotation process are, in addition, the medicament output by the dosing machine per minute is the volume multiple of the dosing machine, and when the set flow is not the volume multiple of the dosing machine, the larger error can be generated. In addition, if the water pressure is unstable, the output flow error is increased.
When a user uses a plurality of points, the medicine leaks into the water tank once the diaphragm in the medicine adding machine is broken, and operators need to check one diaphragm, so that the maintenance cost is increased. By taking power water as power, the electromagnetic valve group is instantly turned off when controlling water flow, so that a large water hammer effect can be generated, and the water hammer damages a pipeline to cause leakage.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an electronic pulse fluid quantitative conveyor, which controls a conveying part and a piston part through a driving mechanism and aims to solve the technical problems of easy blockage of output, poor output precision, poor safety and inconvenience in installation and maintenance in the prior art.
In order to achieve the purpose, the invention provides an electronic pulse fluid quantitative conveyor, which comprises a driving device and a quantitative conveying mechanism; the quantitative conveying mechanism comprises a conveying part controlled by the driving device, a piston part arranged at the tail end of the conveying part, a driving pump head matched with and accommodating the piston part, and a liquid inlet pipe and a liquid outlet pipe which are arranged on the driving pump head at an angle. The conveying part is controlled by the driving device, so that the piston part moves left and right in the driving pump head to suck and discharge liquid, the liquid discharge amount is the same every time, and the output precision is high. The hydraulic drive is not used, no water hammer effect occurs, and the safety performance is high. The volume is small, the structure is simple, and the installation and the maintenance are more convenient.
Preferably, the conveying part comprises a driving wheel arranged on the driving device, a driven wheel driven by the driving wheel through a belt, an eccentric wheel connected with the driven wheel, and a driving shaft hinged on the eccentric wheel. The belt transmission is not easy to be blocked and has low noise. The eccentric wheel drives the driving shaft to move left and right, so that the liquid inlet amount and the liquid outlet amount are controlled to be the same.
Preferably, the piston portion includes an upper insulation layer and a lower insulation layer; the piston portion further includes a wire mesh sandwiched between the upper and lower insulating layers. The fatigue resistance of piston portion not only can be strengthened to the wire mesh, and thereby when insulating layer broke down, thereby the wire mesh reports to the police on with the signal of telecommunication transmission drive shaft, in time changes piston portion.
Preferably, a one-way valve is arranged in the liquid inlet pipe; and a flushing hole is arranged on the side wall of the liquid inlet pipe. The check valve controls the one-way flow of liquid, and the flushing holes can flush the liquid inlet pipe and the liquid outlet pipe to prevent blockage.
Preferably, a check valve is arranged in the liquid outlet pipe. The check valve prevents the liquid flowing out from the liquid outlet pipe from flowing back.
Preferably, the driving device comprises a stepping motor and a PLC algorithm module for controlling the rotation of the stepping motor. The PLC algorithm module improves the automation degree and improves the control precision.
Preferably, the algorithm module comprises a flow setting module, a motor rotation number module calculated according to the flow setting module, a pulse module calculated according to the motor rotation number module, and an output module for outputting the pulse module to the stepping motor.
Preferably, the diameter of the metal wire mesh is 0.1-0.3 mm.
Preferably, the upper insulating layer and the lower insulating layer are made of polytetrafluoroethylene materials.
Preferably, the dosing mechanism further comprises a protective housing containing the dosing mechanism. The protective housing serves to prevent dust.
Preferably, a control chip monitoring io is further arranged on the driving shaft; the driving device also comprises a switch module; the switch module is in communication connection with the control chip monitoring io, and the switch module is in communication connection with the PLC algorithm module.
Compared with the prior art, the electronic pulse fluid quantitative conveyor provided by the invention has the beneficial effects that: the conveying part is controlled by the driving device, so that the piston part moves left and right in the driving pump head to suck and discharge liquid, the liquid discharge amount is the same every time, and the output precision is high. The hydraulic drive is not used, no water hammer effect occurs, and the safety performance is high. The volume is small, the structure is simple, and the installation and the maintenance are more convenient. The belt transmission is not easy to be blocked and has low noise. The eccentric wheel drives the driving shaft to move left and right, so that the liquid inlet amount and the liquid outlet amount are controlled to be the same. The fatigue resistance of piston portion not only can be strengthened to the wire mesh, and thereby when insulating layer broke down, thereby the wire mesh reports to the police on with the signal of telecommunication transmission drive shaft, in time changes piston portion. The check valve controls the one-way flow of liquid, and the flushing holes can flush the liquid inlet pipe and the liquid outlet pipe to prevent blockage. The check valve prevents the liquid flowing out from the liquid outlet pipe from flowing back. The PLC algorithm module improves the automation degree and improves the control precision.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an electronic pulse fluid quantitative conveyer according to an embodiment of the present invention.
Fig. 2 is another schematic structural diagram of an electronic pulse fluid quantitative conveyor according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a piston portion of an electronic pulse fluid quantitative conveyor according to an embodiment of the invention.
Fig. 4 is a control block diagram of a driving apparatus of an electronic pulse fluid quantitative conveyer according to an embodiment of the present invention.
In the figure: 1. a drive device; 11. a stepping motor; 12. a PLC algorithm module; 121. a flow setting module; 122. a motor rotation number module; 123. a pulse module; 124. an output module; 13. a switch module; 14. The control chip monitors io; 2. a quantitative conveying mechanism; 21. a conveying section; 211. a driving wheel; 212 a driven wheel; 213. a belt; 214. an eccentric wheel; 215. a drive shaft; 22. a piston portion; 221. an upper insulating layer; 222. a lower insulating layer; 223. a wire mesh; 23. driving a pump head; 24. a liquid inlet pipe; 241. a one-way valve; 242. flushing the hole; 25. a liquid outlet pipe; 251. a check valve; 26. a protective housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides an electronic pulse fluid quantitative conveyor, including a driving device 1 and a quantitative conveying mechanism 2. The quantitative transfer mechanism 2 comprises a transfer part 21 controlled by the driving device 1, a piston part 22 arranged at the end of the transfer part 21, a driving pump head 23 adapted to accommodate the piston part 22, a liquid inlet pipe 24 and a liquid outlet pipe 25 arranged on the driving pump head 23 at an angle. Specifically, the driving device 1 controls the conveying unit 21 to rotate, and the conveying unit 21 drives the piston 22 to move left and right in the driving pump head 23. When the piston part 22 moves to the left, the pump head 23 is driven to suck liquid from the liquid inlet pipe 24, and when the piston part 22 moves to the right, the pump head 23 is driven to discharge liquid from the liquid outlet pipe 25.
Referring to fig. 1, in an alternative embodiment, the conveying part 21 includes a driving wheel 211 mounted on the driving device 1, a driven wheel 212 driven by the driving wheel 211 connected through a belt 213, an eccentric wheel 214 connected to the driven wheel 212, and a driving shaft 215 hinged to the eccentric wheel 214. Specifically, the driving device 1 drives the driving wheel 211 of the conveying portion 21 to rotate. The driving pulley 211 drives the driven pulley 212 to rotate through the belt 213. The driven wheel 212 rotates the eccentric wheel 214. The eccentric wheel 214 rotates to drive the driving shaft 215 to move left and right. The eccentric 214 performs one reciprocating motion per 360 ° of rotation of the driven wheel 212. The drive shaft 215 is articulated on the eccentric 214 without interfering with the piston portion 22.
Referring to fig. 3, in an alternative embodiment, the piston portion 22 includes an upper insulation layer 221 and a lower insulation layer 222. The piston portion 22 further includes a wire mesh 223 sandwiched between the upper insulation layer 221 and the lower insulation layer 222. Specifically, the piston portion 22 is a one-piece cast design. The interlayer of the piston 22 has a wire mesh therein, which not only enhances the fatigue resistance of the piston 22, but also allows the wire mesh 223 to conduct electricity after the lower insulating layer 222 is broken. The wire mesh 223 is vertically installed in the lower insulating layer 222 with two outer wires led out, and the solution conducts the two outer wires when the lower insulating layer 222 is broken. The wire mesh 223 is in communication with the driving shaft 215, and when the wire mesh 223 is conducted, the driving shaft 215 can detect a current signal.
Referring to fig. 1 and 2, in an alternative embodiment, a one-way valve 241 is provided in the liquid inlet pipe 24. The side wall of the liquid inlet pipe 24 is provided with a flushing hole 242. Specifically, when the piston 22 moves leftward, the pump head 23 is driven to feed liquid from the liquid feed pipe 24, and the check valve 241 prevents the reverse flow. The flushing hole 242 is provided below the check valve 241, and a pressurized water flow is introduced from the flushing hole 242 to flush the liquid, thereby preventing the liquid inlet pipe 24 and the liquid outlet pipe 25 from being clogged.
Referring to FIG. 1, in an alternative embodiment, a check valve 251 is disposed within effluent pipe 25. Specifically, when the piston 22 moves, the liquid driving the pump head 23 is pushed out of the liquid outlet tube 25, and the check valve 251 prevents the reverse flow.
Referring to fig. 1 and 4, in an alternative embodiment, the driving device 1 includes a stepping motor 11 and a PLC algorithm module 12 for controlling the rotation of the stepping motor 11. Specifically, the stepping motor 11 controls the driving pulley 211 to rotate. The PLC algorithm module 12 is used for controlling the rotation of the stepping motor 11, so that the liquid inlet precision and the liquid outlet precision are improved.
Referring to fig. 4, in an alternative embodiment, the algorithm module 12 includes a flow setting module 121, a number of motor revolutions module 122 calculated from the flow setting module 121, a number of pulses module 123 calculated from the number of motor revolutions module 122, and an output module 124 that outputs the number of pulses module 123 to the stepper motor 11. Specifically, by using a stepping motor driver of 2000 divisions, each electronic pulse makes the stepping motor rotate 0.18 degrees, each angle corresponds to the volume of the liquid in the driving pump head 23, and the number of electronic pulses required to be output and controlled in unit time is calculated according to the input set liquid flow, so that the output liquid can be accurately controlled. When the driving pump head 23 with the volume of 10ml is selected, the flow setting module 121 sets the flow to be 300ml/min, and the number of revolutions of the motor module 122 is calculated. Flow (300 ml)/pump head volume (10 ml) =30 reciprocations. The ratio of X pulley to X360 (main pulley) X pulley (1: 3) = total angle of rotation required for the motor 32400 ° in 30 reciprocations. When setting 1 pulse signal to 0.18 °, 32400 °/0.18=180000 electronic pulses/minute are required. That is, the pulse module 123 outputs 18000 electronic pulses/minute through the output module 124.
Referring to fig. 3, in an alternative embodiment, the wire mesh 223 is 0.2mm in diameter. In particular, the fatigue resistance of the piston portion 22 may be enhanced without excessively rough failure of the piston portion 22.
Referring to fig. 3, in an alternative embodiment, the upper insulating layer 221 and the lower insulating layer 222 are made of teflon. Specifically, the polytetrafluoroethylene material has good sealing performance, prevents liquid leakage, has good insulating, corrosion-resistant and resistance performances, and is easy for batch production.
Referring to fig. 1 and 2, in an alternative embodiment, the dosing mechanism 2 further comprises a protective housing 26 that houses the dosing mechanism 2. The shield case 26 serves to block dust. Specifically, the stepping motor 11 is fixed to the outer wall of the shield case 26. The dosing mechanism 2 is mounted inside a protective housing 26. The service life of the quantitative conveying mechanism 2 is prolonged.
Referring to fig. 1 and 4, in an alternative embodiment, a control chip monitor io14 is also provided on the driving shaft 215, which is SGM3157YC 6. The drive device 1 further comprises a switch module 13. The switch module 13 is in communication connection with the control chip monitor io14, and the switch module 13 is in communication connection with the PLC algorithm module 12. Specifically, when one of the lower insulating layers 222 is broken, the current of the wire mesh 223 is transmitted to the driving shaft 215, and the control chip monitoring io14 sends out an alarm after detecting the current and turns off the PLC algorithm module 12 through the switch module 13, so that the whole apparatus is turned off. Wherein the current of the wire mesh 223 comes from an externally connected micro-current generator.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An electronic pulse fluid quantitative conveyor comprises a driving device (1) and a quantitative conveying mechanism (2); the method is characterized in that: the quantitative conveying mechanism (2) comprises a conveying part (21) controlled by the driving device (1), a piston part (22) arranged at the tail end of the conveying part (21), a driving pump head (23) which is matched with and contains the piston part (22), and a liquid inlet pipe (24) and a liquid outlet pipe (25) which are arranged on the driving pump head (23) in an angle mode.
2. An electronic pulse fluid metering conveyor as in claim 1 wherein: the conveying part (21) comprises a driving wheel (211) arranged on the driving device (1), a driven wheel (212) driven by the driving wheel (211) through a belt (213), an eccentric wheel (214) connected with the driven wheel (212) and a driving shaft (215) hinged to the eccentric wheel (214).
3. An electronic pulse fluid metering conveyor as claimed in claim 1 or 2 wherein: the piston portion (22) includes an upper insulation layer (221) and a lower insulation layer (222); the piston portion (22) further includes a wire mesh (223) sandwiched between the upper insulation layer (221) and the lower insulation layer (222).
4. An electronic pulse fluid metering conveyor as claimed in claim 1 or 2 wherein: a one-way valve (241) is arranged in the liquid inlet pipe (24); the side wall of the liquid inlet pipe (24) is provided with a flushing hole (242).
5. An electronic pulse fluid metering conveyor as in claim 3 wherein: a one-way valve (241) is arranged in the liquid inlet pipe (24); the side wall of the liquid inlet pipe (24) is provided with a flushing hole (242).
6. An electronic pulse fluid metering conveyor as claimed in claim 1 or 2 wherein: a check valve (251) is arranged in the liquid outlet pipe (25).
7. An electronic pulse fluid metering conveyor as in claim 5 wherein: a check valve (251) is arranged in the liquid outlet pipe (25).
8. An electronic pulse fluid metering conveyor as claimed in claim 1 or 2 wherein: the driving device (1) comprises a stepping motor (11) and a PLC algorithm module (12) for controlling the stepping motor (11) to rotate.
9. An electronic pulse fluid metering conveyor as in claim 8 wherein: the algorithm module (12) comprises a flow setting module (121), a motor rotation number module (122) calculated according to the flow setting module (121), a pulse module (123) calculated according to the motor rotation number module (122), and an output module (124) for outputting the pulse module (123) to the stepping motor (11).
10. An electronic pulse fluid metering conveyor as in claim 3 wherein: the diameter of the wire mesh (223) is 0.1-0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218266.2A CN110790328A (en) | 2019-12-03 | 2019-12-03 | Electronic pulse fluid quantitative conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218266.2A CN110790328A (en) | 2019-12-03 | 2019-12-03 | Electronic pulse fluid quantitative conveyor |
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| Publication Number | Publication Date |
|---|---|
| CN110790328A true CN110790328A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911218266.2A Pending CN110790328A (en) | 2019-12-03 | 2019-12-03 | Electronic pulse fluid quantitative conveyor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1357448A (en) * | 1970-06-13 | 1974-06-19 | Ismatec Sa | Metering piston pumps |
| CN102220967A (en) * | 2011-06-27 | 2011-10-19 | 广州市暨华医疗器械有限公司 | Volume pump for controlling liquid suction volume |
| CN202872292U (en) * | 2012-08-27 | 2013-04-10 | 赖华山 | Plastic insulation sleeve with improved structure |
| CN204627899U (en) * | 2014-12-16 | 2015-09-09 | 南宁市威玛龙色谱科技有限公司 | A kind of liquid chromatograph high pressure advection infusion pump |
| CN105257496A (en) * | 2015-09-24 | 2016-01-20 | 成都西屋科技发展有限公司 | Micro-metering pump and use method thereof |
| CN205820861U (en) * | 2016-05-30 | 2016-12-21 | 连江圆明工业设计有限公司 | A kind of liquid electronic chemicals dosing filling machine |
| CN211255314U (en) * | 2019-12-03 | 2020-08-14 | 浙江威尔博环保科技有限公司 | Electronic pulse fluid quantitative conveyor |
-
2019
- 2019-12-03 CN CN201911218266.2A patent/CN110790328A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1357448A (en) * | 1970-06-13 | 1974-06-19 | Ismatec Sa | Metering piston pumps |
| CN102220967A (en) * | 2011-06-27 | 2011-10-19 | 广州市暨华医疗器械有限公司 | Volume pump for controlling liquid suction volume |
| CN202872292U (en) * | 2012-08-27 | 2013-04-10 | 赖华山 | Plastic insulation sleeve with improved structure |
| CN204627899U (en) * | 2014-12-16 | 2015-09-09 | 南宁市威玛龙色谱科技有限公司 | A kind of liquid chromatograph high pressure advection infusion pump |
| CN105257496A (en) * | 2015-09-24 | 2016-01-20 | 成都西屋科技发展有限公司 | Micro-metering pump and use method thereof |
| CN205820861U (en) * | 2016-05-30 | 2016-12-21 | 连江圆明工业设计有限公司 | A kind of liquid electronic chemicals dosing filling machine |
| CN211255314U (en) * | 2019-12-03 | 2020-08-14 | 浙江威尔博环保科技有限公司 | Electronic pulse fluid quantitative conveyor |
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