CN104773699B - Liquid suction device with liquid level detection function - Google Patents
Liquid suction device with liquid level detection function Download PDFInfo
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- CN104773699B CN104773699B CN201510076841.5A CN201510076841A CN104773699B CN 104773699 B CN104773699 B CN 104773699B CN 201510076841 A CN201510076841 A CN 201510076841A CN 104773699 B CN104773699 B CN 104773699B
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- liquid
- contact tube
- contact
- sucking device
- control device
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Abstract
The invention discloses a liquid suction device with a liquid level detection function. The liquid suction device comprises a liquid suction pipe, a first fixing element, conducting rods and conducting pipes, wherein the inner surface of each of the conducting pipes is fixedly connected with the first fixing element, gaps between the conducting rods and the conducting pipes are in insulated distribution, the liquid suction device also comprises a control device and a driving device, the control device is connected with the upper ends of the conducting rods and the upper ends of the conducting pipes through circuits, the driving device is connected with the control device through a circuit and is used for sucking out liquid from a liquid storage tank, when the liquid level of the liquid in the liquid storage tank is higher than the lower ends of the conducting rods and the conducting pipes, a closed loop is formed between the conducting rods and the conducting pipes, and the control device starts the driving device when detecting liquid level signals; when the liquid level of the liquid in the liquid storage tank is lower than the lower ends of the conducting rods or the conducting pipes, a break circuit is formed between the conducting rods and the conducting pipes, and the control device switches off the driving device when detecting no liquid level signals. The liquid suction device has the advantages that when the liquid level in the liquid storage tank is detected, the starting and the switching-off of the driving device are controlled through the control device, and the driving device is effectively protected.
Description
Technical field
The present invention relates to a kind of liquid sucking device with level sensing.
Background technology
In the industries such as chemical industry, food service industry, environmental sanitation, mother liquor is being extracted from fluid reservoir using drawing liquid pump
Simultaneously it is also required to that liquid level is controlled to protect drawing liquid pump.The existing device for realizing the two functions is separated, peace
Fill relatively complicated, maintenance also more inconvenience.And for liquid level detection device, often using float type level switch, use
Just easily there is the phenomenon of jam as movable part in ball float.Additionally, fluid reservoir of the float type level switch for different depth
Adaptability it is also poor.
The content of the invention
It is an object of the invention to provide a kind of liquid sucking device with level sensing, the liquid sucking device can be in detection liquid level
Control the open and close of driving means by control device simultaneously, simple structure is with low cost, and service life is longer.
To reach above-mentioned purpose, the technical solution used in the present invention is：
A kind of liquid sucking device with level sensing, for drawing liquid from fluid reservoir, the liquid sucking device includes one end
Stretch into the pipette in the fluid reservoir, the first fixture being fixedly arranged on the pipette outer peripheral face, consolidate by described first
Determine the conduction that the contact rod, inner surface that part is fixed on the pipette outer peripheral face is mutually fixedly connected with first fixture
Pipe, between the contact rod and the contact tube phase gap insulation distribution, the liquid sucking device also include respectively with the conduction
The control device and control device circuitry phase connection of rod upper end and the connection of contact tube upper end circuitry phase for by institute
The driving means that liquid is suctioned out from the fluid reservoir are stated, when the liquid levels in the fluid reservoir are higher than contact rod and contact tube
Lower end when, closed-loop path is formed between the contact rod and the contact tube, the control device detects liquid level signal simultaneously
Start the driving means；When lower end of the liquid levels in the fluid reservoir less than the contact rod or the contact tube,
Open circuit is formed between the contact rod and the contact tube, the control device detects without liquid level signal and close the driving
Device.
Preferably, the axial line of pipette axial line, the axial line of the contact tube respectively with the contact rod
The setting being parallel to each other.
Preferably, the liquid sucking device also includes conducting strip, conducting strip upper end respectively with the contact tube and institute
State the connection of control device circuitry phase.
Preferably, the control device includes upper end respectively with the contact rod and the upper end circuitry phase of the contact tube
The liquid level relay of connection and the driving means circuitry phase connection PLC control modules, the liquid level relay with it is described
PLC control modules circuitry phase connects.
Preferably, the liquid sucking device also includes that being sheathed on for slip is described for preventing on the contact tube outer peripheral face
The closure of the gas escape in fluid reservoir.
It is highly preferred that the liquid sucking device also includes that for the closure to be fixed on the contact tube second consolidates
Determine part.
Preferably, be also arranged with the 3rd fixture on the contact rod, the 3rd fixture respectively with the pipette
The inconsistent connection of the inner peripheral surface of outer peripheral face and the contact tube.
Preferably, the driving means are drawing liquid pump.
Due to the utilization of above-mentioned technical proposal, the present invention has compared with prior art following advantages：A kind of band of the present invention
The liquid sucking device of level sensing, by the fixed contact rod in pipette lateral wall interval and contact tube, by the upper end of contact rod and
The upper end of contact tube is connected respectively with control device circuitry phase so that liquid sucking device can be while liquid level in detecting fluid reservoir
Control the startup of driving means and close by control device, be effectively protected driving means；Simultaneously the liquid sucking device on not
There is movable part, effectively avoid the generation of stucking phenomena and accident.The liquid sucking device simple structure with level sensing,
With low cost, service life is longer.
Description of the drawings
Accompanying drawing 1 is pipette and contact rod, the attachment structure schematic diagram of contact tube；
Accompanying drawing 2 is structural representation of apparatus of the present invention when used in fluid reservoir.
Wherein：1st, fluid reservoir；2nd, pipette；3rd, the first fixture；4th, contact rod；5th, contact tube；6th, liquid level relay；7、
PLC control modules；8th, driving means；9th, conducting strip；10th, closure；11st, the second fixture；12nd, the 3rd fixture.
Specific embodiment
Come below in conjunction with the accompanying drawings to be further elaborated technical scheme.
Referring to shown in Fig. 1-2, above-mentioned a kind of liquid sucking device with level sensing, for drawing liquid from fluid reservoir 1.
The liquid sucking device stretches into pipette 2 in fluid reservoir 1 including one end, is fixedly connected on the outer peripheral face of pipette 2
First fixture 3, the contact rod 4, inner surface and first that are fixed on the outer peripheral face of pipette 2 by first fixture 3 are fixed
The contact tube 5 that part 3 is mutually fixedly connected, in the present embodiment, first fixture 3 is insulated plastic materials and parts, and first fixture 3 is consolidated
Surely it is set in pipette 2.The axial line of the pipette 2 axial line respectively with contact rod 4, contact tube 5 axial line it is mutual
Parallel setting.
The contact rod 4 is located in contact tube 5, is interfixed by the first fixture 3 between the contact rod 4 and contact tube 5
And gap distribution and mutually insulated；Interfixed and gap distribution by the first fixture 3 between the contact rod 4 and pipette 2.
In the present embodiment, for more preferable fixed pipette 2, contact rod 4 and contact tube 5, the 3rd fixation is arranged with contact rod 4
Part 12, the 3rd fixture 12 is ambroin set, and the outer peripheral face of the ambroin set contradicts respectively the outer peripheral face in pipette 2
On the upper, inner peripheral surface of contact tube 5, in the present embodiment, the 3rd fixture 12 has two, and two the 3rd fixtures 12 are along leading
The length bearing of trend of torch 4 is distributed on contact rod 4.
The liquid sucking device also include the control device that is connected with the upper end of contact rod 4 and the upper end circuitry phase of contact tube 5 respectively and
Control device circuitry phase connection for the driving means 8 that suction out liquid from fluid reservoir 1, in the present embodiment, the drive
Dynamic device 8 is drawing liquid pump.
Conducting strip 9 is additionally provided with the liquid sucking device, the conducting strip 9 is mutually electric with the upper end of contact tube 5 and control device respectively
Road connects.
Liquid level relay 6 that above-mentioned control device includes being connected with the upper end of contact rod 4 and the circuitry phase of conducting strip 9 respectively,
The PLC control modules 7 being connected with the circuitry phase of driving means 8, the liquid level relay 6 is connected with the circuitry phase of PLC control modules 7.
When lower end of the liquid levels in fluid reservoir 1 higher than contact rod 4 and contact tube 5, the contact rod 4 and contact tube 5
Between form closed-loop path, liquid level relay 6 detects liquid level signal and passes to PLC control modules 7, PLC control modules 7 so as to
Start driving means and extract liquid from fluid reservoir 1；When the liquid levels in fluid reservoir 1 are less than under contact rod 4 or contact tube 5
During end, open circuit is formed between contact rod 4 and contact tube 5, liquid level relay 6 detects without liquid level signal and pass to PLC control moulds
Block 7, the PLC control modules 7 close driving means 8, are prevented from driving means 8 by this setting and dally, and are effectively protected
The driving means 8.
Smell from dispersing in order to prevent fluid reservoir 1, the liquid sucking device also includes that what is slided is sheathed on the outer peripheral face of contact tube 5
On closure 10, the second fixture 11 for being fixed on the closure 10 on contact tube 5.By above-mentioned setting, effectively
The loss for preventing smell in fluid reservoir 1, protective effect is served to the healthy and safe of workman；For the liquid storage of different depth
Tank 1, it is only necessary to slide up and down contact tube 5 along closure 10, adjusting length of the contact tube 5 positioned at the lower end of closure 10 is
Can.
The course of work of lower the present embodiment is illustrated in detail below：
Adjust the relative position of contact tube 5 and closure 10 first according to the depth of fluid reservoir 1 to adapt to the fluid reservoir
1, after regulation is finished, closure 10 is interfixed with contact tube 5 by the second fixture 11, then contact tube 5 is put into into storage
In flow container 1, closure 10 seals the tank mouth of fluid reservoir 1 to prevent smell from dispersing.
When lower end of the liquid levels in fluid reservoir 1 higher than contact rod 4 and contact tube 5, the contact rod 4 and contact tube 5
Between form closed-loop path, liquid level relay 6 detects liquid level signal and passes to PLC control modules 7, PLC control modules 7 so as to
Start driving means 8 and extract liquid from fluid reservoir 1；When the liquid levels in fluid reservoir 1 are less than contact rod 4 or contact tube 5
During lower end, open circuit is formed between contact rod 4 and contact tube 5, liquid level relay 6 detects without liquid level signal and pass to PLC controls
Module 7, the PLC control modules 7 close driving means 8, are prevented from driving means 8 by this setting and dally, and effectively protect
The driving means 8 are protected.
Effectively avoid the generation of stucking phenomena and accident without movable part on the liquid sucking device simultaneously.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and be carried out, can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that Spirit Essence is made, all should cover within the scope of the present invention.
Claims (8)
1. a kind of liquid sucking device with level sensing, for drawing liquid from fluid reservoir, it is characterised in that：The liquid sucking device
The pipette in the fluid reservoir, the first fixture being fixedly arranged on the pipette outer peripheral face are stretched into including one end, by institute
State contact rod, inner surface that the first fixture is fixed on the pipette outer peripheral face to be mutually fixedly connected with first fixture
Contact tube, between the contact rod and the contact tube phase gap insulation distribution, the liquid sucking device also include respectively with institute
State the control device and the use of control device circuitry phase connection of contact rod upper end and the connection of contact tube upper end circuitry phase
In the driving means for suctioning out the liquid from the fluid reservoir, when the liquid levels in the fluid reservoir higher than contact rod and
During the lower end of contact tube, closed-loop path is formed between the contact rod and the contact tube, the control device detects liquid level
Signal simultaneously starts the driving means；When the liquid levels in the fluid reservoir are less than under the contact rod or the contact tube
During end, open circuit is formed between the contact rod and the contact tube, the control device detects without liquid level signal and close institute
State driving means.
2. a kind of liquid sucking device with level sensing according to claim 1, it is characterised in that：The axle center of the pipette
The setting that line axial line respectively with the contact rod, the axial line of the contact tube are parallel to each other.
3. a kind of liquid sucking device with level sensing according to claim 1, it is characterised in that：The liquid sucking device is also wrapped
Conducting strip is included, the conducting strip is connected respectively with the upper end of the contact tube and the control device circuitry phase.
4. a kind of liquid sucking device with level sensing according to claim 1, it is characterised in that：The control device includes
The liquid level relay being connected with the upper end of the contact rod and the upper end circuitry phase of the contact tube respectively and the driving means
The PLC control modules of circuitry phase connection, the liquid level relay is connected with the PLC control modules circuitry phase.
5. a kind of liquid sucking device with level sensing according to claim 1, it is characterised in that：The liquid sucking device is also wrapped
Include slip be sheathed on the contact tube outer peripheral face for preventing the fluid reservoir in gas escape closure.
6. a kind of liquid sucking device with level sensing according to claim 5, it is characterised in that：The liquid sucking device is also wrapped
Include the second fixture for being fixed on the closure on the contact tube.
7. a kind of liquid sucking device with level sensing according to claim 1, it is characterised in that：Also cover on the contact rod
The 3rd fixture is provided with, the 3rd fixture offsets respectively with the outer peripheral face of the pipette and the inner peripheral surface of the contact tube
Touch connection.
8. a kind of liquid sucking device with level sensing according to claim 1, it is characterised in that：The driving means are to take out
Liquid pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076841.5A CN104773699B (en) | 2015-02-13 | 2015-02-13 | Liquid suction device with liquid level detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076841.5A CN104773699B (en) | 2015-02-13 | 2015-02-13 | Liquid suction device with liquid level detection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104773699A CN104773699A (en) | 2015-07-15 |
| CN104773699B true CN104773699B (en) | 2017-05-10 |
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ID=53615519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076841.5A Active CN104773699B (en) | 2015-02-13 | 2015-02-13 | Liquid suction device with liquid level detection function |
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| Country | Link |
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| CN (1) | CN104773699B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797502B (en) * | 2019-11-11 | 2022-05-17 | 超威电源集团有限公司 | Acid pumping control device and acid pumping process for battery formation |
| CN114229779B (en) * | 2021-12-17 | 2024-07-26 | 深圳迎凯生物科技有限公司 | Liquid inlet mechanism, liquid inlet method and in-vitro diagnosis analyzer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202250357U (en) * | 2011-10-14 | 2012-05-30 | 象山博宇汽车模塑制造有限公司 | Liquid level sensor for automobile water tank balance liquid storage tank |
| CN103058118A (en) * | 2011-10-18 | 2013-04-24 | 王朝民 | Automatic quantifying water supply device |
| CN203998921U (en) * | 2014-07-17 | 2014-12-10 | 白银有色集团股份有限公司 | A kind of automatic mounting acid device |
| CN204454551U (en) * | 2015-02-13 | 2015-07-08 | 江苏新美星包装机械股份有限公司 | A kind of liquid sucking device with level sensing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3502177B2 (en) * | 1995-02-17 | 2004-03-02 | 株式会社矢野特殊自動車 | Liquid level detection device for liquid transport vehicles |
| EP2101619B1 (en) * | 2006-12-27 | 2010-06-09 | Jura Elektroapparate AG | Method for dispensing milk portions in drink preparation machines |
-
2015
- 2015-02-13 CN CN201510076841.5A patent/CN104773699B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202250357U (en) * | 2011-10-14 | 2012-05-30 | 象山博宇汽车模塑制造有限公司 | Liquid level sensor for automobile water tank balance liquid storage tank |
| CN103058118A (en) * | 2011-10-18 | 2013-04-24 | 王朝民 | Automatic quantifying water supply device |
| CN203998921U (en) * | 2014-07-17 | 2014-12-10 | 白银有色集团股份有限公司 | A kind of automatic mounting acid device |
| CN204454551U (en) * | 2015-02-13 | 2015-07-08 | 江苏新美星包装机械股份有限公司 | A kind of liquid sucking device with level sensing |
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| CN104773699A (en) | 2015-07-15 |
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