CN207974931U - A kind of liquid quantitative pump - Google Patents
A kind of liquid quantitative pump Download PDFInfo
- Publication number
- CN207974931U CN207974931U CN201820122065.7U CN201820122065U CN207974931U CN 207974931 U CN207974931 U CN 207974931U CN 201820122065 U CN201820122065 U CN 201820122065U CN 207974931 U CN207974931 U CN 207974931U
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- China
- Prior art keywords
- cylinder body
- sliding block
- shell
- liquid
- quantitative pump
- Prior art date
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Links
- 239000007788 liquid Substances 0.000 title claims abstract description 48
- 230000030279 gene silencing Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model is related to a kind of liquid quantitative pumps, including stepper motor, cylinder body and shell, the cylinder body is located at the enclosure interior, the cylinder body forms sliding cavity between the enclosure interior, sliding block is equipped in the sliding cavity, the sliding block is connected with the travel switch of setting on the housing；The stepper motor is connect by lead screw with one end of the sliding block, and spring is arranged on the lead screw, and one end of the spring is fixedly connected with enclosure interior, and the other end of the spring is fixedly connected with the sliding block；The other end of the sliding block is connect by piston rod with the piston of the cylinder interior；The cylinder body is equipped with inlet and liquid outlet, and one-way cock is equipped on the liquid outlet and liquid outlet.The utility model is simple in structure, can be with continuous work, high degree of automation, and accuracy is high, is suitable for high-precision measuring.
Description
Technical field
The utility model is related to quantitative pump technical fields, and in particular to a kind of liquid quantitative pump.
Background technology
Constant displacement pump is commonly used in the conveying of slurry, the especially conveying of some corrosive liquids in the industrial production.With
The degree of automation of modern industry is higher and higher, and the requirement of automation and precision to constant displacement pump is also higher and higher.However it is existing
Some constant displacement pump precision or controllable degree are high not enough, cause to generate autohemagglutination in some ill effects, such as chemical reaction
Grain, influences product quality.
Utility model content
In order to improve the technical issues of liquid quantitative pumps accuracy, the utility model provides a kind of liquid quantitative pump.This reality
It is as follows with novel technical solution：
A kind of liquid quantitative pump, it is characterised in that：Including stepper motor, cylinder body and shell, the cylinder body is located at the shell
Internal portion forms sliding cavity between the cylinder body and the shell, equipped with sliding block in the sliding cavity, the sliding block with set
The travel switch set on the housing is connected；The stepper motor is connect by lead screw with one end of the sliding block, the silk
Spring is arranged on bar, one end of the spring is fixedly connected with enclosure interior, and the other end of the spring is solid with the sliding block
Fixed connection；The other end of the sliding block is connect by piston rod with the piston of the cylinder interior；The cylinder body is equipped with feed liquor
Mouthful and liquid outlet, be equipped with one-way cock on the liquid outlet and liquid outlet.
Further, guide sleeve is equipped in the sliding cavity, the piston rod is socketed in the guide sleeve.Guide sleeve
In pore diameter it is identical as the diameter of piston rod, while guide sleeve is to piston rod supporting role ensure piston rod along guide sleeve
The direction of hole move reciprocatingly.
Further, the inner wall of the shell is equipped with silencing groove, and noise reduction is equipped in the gap between the shell and cylinder body
Cotton.Silencing groove and silencing cotton can efficiently reduce the vibrations generated in the course of work, and then achieve the effect that noise reduction, simultaneously also
The service life of equipment can be extended.
Further, the cylinder body is equipped with scale.Be conducive to carry out volume measurement to the liquid of absorption.
Further, the sliding cavity is connected with pressure monitor.Since the sliding cavity between sliding block and cylinder body is
Sealing state, internal air pressure can change with slide block movement, therefore can learn cylinder indirectly by pressure monitor
Internal liquid capacity.
Further, the lead screw is all provided with the junction of the shell, the junction of the piston rod and the cylinder body
There is sealing ring.Sealing ring is further ensured that the leakproofness of the sliding cavity between sliding block and cylinder body, improves accuracy.
Further, it is equipped with flowmeter on the inlet and liquid outlet.Flowmeter for monitor enter cylinder body in or
Flow out the fluid flow of cylinder body.
The beneficial effects of the utility model are as follows：The utility model drives lead screw to move reciprocatingly using stepper motor, into
The position of one step control slide block and piston, when feed liquor, the check-valve port on inlet is being opened, and the check-valve port on liquid outlet is closed
It closes, when going out liquid, the check-valve port on inlet is closed, and the check-valve port on liquid outlet is opened, and is reached accurate quantification and is drawn liquid
With the effect for releasing liquid；The utility model is simple in structure, can be with continuous work, high degree of automation, and accuracy is high.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
In figure：1- stepper motors, 2- cylinder bodies, 3- shells, 4- pistons, 5- travel switches, 6- pressure monitors, 11- lead screws,
21- inlets, 22- liquid outlets, 23- one-way cocks, 31- sliding blocks, 32- springs, 33- slidings cavity, 34- guide sleeves, 35- disappear
Sound slot, 41- piston rods.
Specific implementation mode
The following is a combination of the drawings in the embodiments of the present utility model 1, to the technical scheme in the embodiment of the utility model into
Row clearly and completely describes, it is clear that and the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.
In order to improve the technical issues of liquid quantitative pumps accuracy, the utility model provides a kind of liquid quantitative pump.This reality
It is as follows with novel technical solution：
A kind of liquid quantitative pump, it is characterised in that：Including stepper motor 1, cylinder body 2 and shell 3, the cylinder body 2 is located at institute
It states inside shell 3, forms sliding cavity 33 between the cylinder body 2 and the shell 3, sliding block is equipped in the sliding cavity 33
31, the sliding block 31 is connected with the travel switch 5 being arranged on the shell 3；The stepper motor 1 passes through lead screw 11 and institute
One end connection of sliding block 31 is stated, spring 32, one end and the fixed company in 3 inside of shell of the spring 32 are arranged on the lead screw 11
It connects, the other end of the spring 32 is fixedly connected with the sliding block 31；The other end of the sliding block 31 passes through piston rod 41 and institute
The piston 4 inside cylinder body 2 is stated to connect；The cylinder body 2 is equipped with inlet 21 and liquid outlet 22, the liquid outlet 22 and liquid outlet
One-way cock 23 is equipped on 22.
Preferably, guide sleeve 34 is equipped in the sliding cavity 33, the piston rod 41 is socketed in the guide sleeve 34.
Pore diameter in guide sleeve 34 is identical as the diameter of piston rod 41, is protected while guide sleeve 34 is to 41 supporting role of piston rod
Card piston rod 41 moves reciprocatingly along the direction of the hole of guide sleeve 34.
Preferably, the inner wall of the shell 3 is equipped with silencing groove 35, is equipped with and disappears in the gap between the shell 3 and cylinder body 2
Sound cotton.Silencing groove 35 and silencing cotton can efficiently reduce the vibrations generated in the course of work, and then achieve the effect that noise reduction, together
When can also extend the service life of equipment.
Preferably, the cylinder body 2 is equipped with scale.Be conducive to carry out volume measurement to the liquid of absorption.
Preferably, the sliding cavity 33 is connected with pressure monitor 6.Since the sliding between sliding block 31 and cylinder body 2 is empty
Chamber 33 is sealing state, and internal air pressure can change as sliding block 31 moves, therefore can be by between pressure monitor 6
Connect the liquid capacity learnt in cylinder body 2.
Preferably, the lead screw 11 and the junction of the shell 3, the junction of the piston rod 41 and the cylinder body 2
It is equipped with sealing ring.Sealing ring is further ensured that the leakproofness of the sliding cavity 33 between sliding block 31 and cylinder body 2, improves accurate
Degree.
Preferably, it is equipped with flowmeter on the inlet 21 and liquid outlet 22.Flowmeter enters for monitoring in cylinder body 2
Or the fluid flow of outflow cylinder body 2.
The beneficial effects of the utility model are as follows：The utility model drives lead screw 11 to do reciprocal fortune using stepper motor 1
Dynamic, the position of further control slide block 31 and piston 4, when feed liquor, the check-valve port on inlet 21 is being opened, on liquid outlet 22
Check-valve port close, when going out liquid, check-valve port on inlet 21 is closed, and the check-valve port on liquid outlet 22 is opened, and is reached
Accurate quantification draws liquid and releases the effect of liquid；The utility model is simple in structure, can be with continuous work, the degree of automation
Height, accuracy are high.
The above is preferred embodiments of the present invention, is not restricted to the utility model.To art technology
For personnel, the several improvements and modifications made without departing from the principle of the present invention also should be regarded as the protection of the present invention
Range.
Claims (7)
1. a kind of liquid quantitative pump, it is characterised in that：Including stepper motor, cylinder body and shell, the cylinder body is located at the shell
Inside forms sliding cavity between the cylinder body and the shell, sliding block, the sliding block and setting are equipped in the sliding cavity
Travel switch on the housing is connected；The stepper motor is connect by lead screw with one end of the sliding block, the lead screw
On be arranged with spring, one end of the spring is fixedly connected with enclosure interior, and the other end of the spring is fixed with the sliding block
Connection；The other end of the sliding block is connect by piston rod with the piston of the cylinder interior；The cylinder body is equipped with inlet
And liquid outlet, one-way cock is equipped on the liquid outlet and liquid outlet.
2. a kind of liquid quantitative pump according to claim 1, it is characterised in that：Guide sleeve is equipped in the sliding cavity,
The piston rod is socketed in the guide sleeve.
3. a kind of liquid quantitative pump according to claim 1, it is characterised in that：The inner wall of the shell is equipped with silencing groove,
Silencing cotton is equipped in gap between the shell and cylinder body.
4. a kind of liquid quantitative pump according to claim 1, it is characterised in that：The cylinder body is equipped with scale.
5. a kind of liquid quantitative pump according to claim 1, it is characterised in that：The sliding cavity and pressure monitor phase
Even.
6. a kind of liquid quantitative pump according to claim 1, it is characterised in that：The connection of the lead screw and the shell
The junction at place, the piston rod and the cylinder body is equipped with sealing ring.
7. a kind of liquid quantitative pump according to claim 1, it is characterised in that：It is equipped on the inlet and liquid outlet
Flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122065.7U CN207974931U (en) | 2018-01-24 | 2018-01-24 | A kind of liquid quantitative pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122065.7U CN207974931U (en) | 2018-01-24 | 2018-01-24 | A kind of liquid quantitative pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207974931U true CN207974931U (en) | 2018-10-16 |
Family
ID=63769594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820122065.7U Active CN207974931U (en) | 2018-01-24 | 2018-01-24 | A kind of liquid quantitative pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207974931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935400A (en) * | 2019-12-25 | 2020-03-31 | 蔡宝丹 | Intermittent automatic feeding device for liquid storage tank |
| CN112844241A (en) * | 2020-12-31 | 2021-05-28 | 辽宁庆阳特种化工有限公司 | Trace solvent dropwise adding device |
-
2018
- 2018-01-24 CN CN201820122065.7U patent/CN207974931U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935400A (en) * | 2019-12-25 | 2020-03-31 | 蔡宝丹 | Intermittent automatic feeding device for liquid storage tank |
| CN110935400B (en) * | 2019-12-25 | 2021-01-01 | 唐虹 | Intermittent automatic feeding device of liquid storage tank |
| CN112844241A (en) * | 2020-12-31 | 2021-05-28 | 辽宁庆阳特种化工有限公司 | Trace solvent dropwise adding device |
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| GR01 | Patent grant |