CN207673528U - Reciprocating syringe pump - Google Patents
Reciprocating syringe pump Download PDFInfo
- Publication number
- CN207673528U CN207673528U CN201721405438.3U CN201721405438U CN207673528U CN 207673528 U CN207673528 U CN 207673528U CN 201721405438 U CN201721405438 U CN 201721405438U CN 207673528 U CN207673528 U CN 207673528U
- Authority
- CN
- China
- Prior art keywords
- spool
- main body
- piston
- eccentric wheel
- rod
- 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- Withdrawn - After Issue
Links
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 230000001360 synchronised effect Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a kind of reciprocating syringe pumps, are equipped with valve body, liquid reservoir, piston and drive system, it is characterised in that：Synchronous spool is equipped in the valve body, synchronous spool includes the spool main body of cylinder, and spool main body is respectively provided with a kerf slot in the both sides of its radial direction, and two grooves of the notch are staggered in its axial direction.The rotation that the reciprocating syringe pump of the utility model passes through spool, alternate conduction inlet pipe and outlet tube road, coordinate synchronous piston motion, it can be achieved that lasting feed liquor and going out liquid, work efficiency is high, and stable working pulse free, meanwhile the utility model also has novel in structural design, planning reasonable, easy to operate, easy to maintain advantage.
Description
Technical field
The utility model is related to chemical industry and field of mechanical technique, specially a kind of fluid control devices.
Background technology
Traditional syringe pump is made of stepper drive motors, driver, lead screw and holder etc., has the silk moved back and forth
Bar, nut, therefore also referred to as lead screw pumps.Only there are one import/exports for conventional injection pump, therefore cannot achieve continuous liquid in-out, mesh
The syringe pump of the preceding liquid that can be achieved to be back to back is equipped with separated inlet and liquid outlet, go out liquid and drawing liquid be by solenoid valve or
Person is that check valve control is completed, but solenoid valve needs independent control, it is more difficult to accurate effective and syringe pump forms synchronous control, and
Check valve is opened or is closed because being generated by the deformation of itself, therefore the limitation of service life and applicable liquid is very big.
Invention content
The technical purpose of the utility model is to provide a kind of novel syringe pump, in the base of hydraulic control that can be achieved to be back to back
On plinth, new design concept is used, the deficiencies in the prior art can be made up.
The technical solution of the utility model is：
A kind of reciprocating syringe pump is equipped with valve body, liquid reservoir, piston and drive system, it is characterised in that：
Synchronous spool is equipped in the valve body, synchronous spool includes the spool main body of cylinder, and spool main body is in its radial direction
The both sides in direction are respectively provided with a kerf slot, and two grooves of the notch are staggered in its axial direction；
Valve body is equipped with the first inlet tube and the first outlet tube being connect with external system, second be connected to liquid reservoir
The nozzle of inlet tube and the second outlet tube, first inlet tube is disposed adjacent with the nozzle of the second inlet tube, and corresponding first cuts
The position of mouth slot, the nozzle of the first outlet tube are disposed adjacent with the nozzle of the second outlet tube, the position of corresponding second groove of the notch, and
Four nozzles are located at the same side of spool main body radial direction, in the rotary course of spool main body, the first inlet tube and second
Inlet tube, the first outlet tube are alternately connected by the corresponding groove of the notch with the second outlet tube；
The liquid reservoir is arranged in the lower section of valve body, and piston is mounted in the liquid reservoir；
The drive system includes controlling the drive of driving mechanism and control spool main body rotation that piston pumps
One oscillation cycle of motivation structure, piston corresponds to a swing circle of spool main body, when piston moves downward to designated position,
First inlet tube and the second inlet tube are switched on；When piston upwards are to designated position, the first outlet tube and the second outlet tube
It is switched on.
On the basis of said program, it is further improved or preferred scheme further includes：
The notch depth of the groove of the notch（That is height of the groove of the notch in spool main body radially）No more than spool main body
Radius.
The synchronous spool is made of spool main body and spool eccentric shaft, the spool eccentric shaft and spool body parallel,
Bias is fixed on one end of spool main body.The drive system includes driving motor, is installed on the rotary output axis of driving motor
Have an eccentric wheel, the eccentric wheel is sequentially connected by connecting rod of eccentric wheel and piston rod, the upper end of connecting rod of eccentric wheel by pivot pin with
Piston rod is hinged, and lower end is sleeved on the eccentric shaft of eccentric wheel, while the eccentric shaft of eccentric wheel also passes through synchronising (connecting) rod and spool
Eccentric axis connection makes driving motor pass through eccentric wheel and connecting rod of eccentric wheel band piston while pump, also pushes
Synchronous Spool rotating.
The case of pedestal and protection on the outside of synchronising (connecting) rod equipped with setting-up eccentricity wheel and connecting rod of eccentric wheel, setting liquid hold
The tubular container of chamber is mounted on the pedestal, and piston rod bottom end passes through the sealing structure of tubular container bottom to stretch into pedestal,
It is connect with connecting rod of eccentric wheel；Valve body is mounted on the top of the tubular container, and driving motor is mounted on the front side of pedestal, described same
Present external rear side is then arranged in step connecting rod, and spool eccentric shaft is correspondingly arranged at the rear side of spool main body, is connect with synchronising (connecting) rod,
The upper/lower terminal of the synchronising (connecting) rod is by bearing holder (housing, cover) on the eccentric shaft of spool eccentric shaft and eccentric wheel.
The open top of the liquid reservoir is closed by sealing cover, the sealing cover be equipped with connection the second inlet tube,
The caliber of second outlet tube and liquid reservoir, valve body are fixed on the sealing cover.
The eccentric wheel is equipped with code-disc, and the lower section of eccentric wheel is equipped with corresponding optocoupler, the position for acquiring driving motor
Angle is moved, the conducting state of valve body liquid in-out mouth is fed back, is convenient for management and control.
Advantageous effect：
The reciprocating syringe pump of the utility model passes through the rotation of spool, alternate conduction inlet pipe and outlet tube road, cooperation
The problem of synchronous piston motion can be realized and lasting feed liquor and go out liquid, work efficiency is high, effective solution valve short life
The class of liquids being not suitable for solenoid valve, check valve, such as highly viscous liquid, the liquid etc. that particle suspends, and stable working
Pulse free, while the utility model also has novel in structural design, planning is reasonable, advantage easy to use, easy to maintain.
Description of the drawings
Fig. 1 is the dimensional structure diagram of one embodiment of the utility model；
Fig. 2 is the front view of embodiment；
Fig. 3 be embodiment A-A to sectional view；
Fig. 4 is the right view of embodiment；
Fig. 5 be embodiment C-C to sectional view；
Fig. 6 is the left view of embodiment；
Fig. 7 is the sectional view of B-B direction；
Fig. 8 is the structural schematic diagram of spool main body.
Specific implementation mode
In order to further elucidate the technical solution of the utility model and operation principle, below in conjunction with the accompanying drawings with specific embodiment
The utility model is described further.
As shown in Figures 1 to 7, a kind of reciprocating syringe pump, including valve body 1, liquid reservoir, piston 4 and drive system etc.
Component part.
Synchronous spool 12 is equipped in the valve body 1（It is synchronous with piston 4 round-trip）, synchronous spool 12 includes the spool of cylinder
Main body and a spool eccentric shaft are constituted, the spool eccentric shaft and spool body parallel but not coaxial, and bias is fixed on spool master
One end of body, as shown in Figure 1.
Spool main body is respectively provided with a kerf slot in the both sides of its radial direction, and as shown in Figure 5, Figure 8, two grooves of the notch are in its axis
It is staggered fully up, the notch depth of the groove of the notch is no more than the radius of spool main body.
Valve body 1 is equipped with the first inlet tube 14 and the first outlet tube 15 being connect with external system, is connected to liquid reservoir
The second inlet tube 13 and the second outlet tube 3, the nozzle of first inlet tube 14 is adjacent with the nozzle of the second inlet tube 13 to be set
It sets, the position of corresponding first groove of the notch 12-1, the distance of two nozzles is no more than the width of the first groove of the notch 12-1, likewise, the
The nozzle of one outlet tube 15 is disposed adjacent with the nozzle of the second outlet tube 3, the position of corresponding second groove of the notch 12-2, two nozzles
Distance is no more than the width of the second groove of the notch 12-2, and four nozzles are arranged on the valve body below spool main body.Synchronous valve
Core is embedded in valve body, and during the single direction rotation of spool main body, the first inlet tube 14 and the second inlet tube 13, first go out liquid
Pipe 15 can replace with the second outlet tube 3 to be connected by the corresponding groove of the notch, is alternately blocked in other words by the position of the non-groove of the notch of spool.
The tubular container that liquid reservoir is arranged is located at the lower section of valve body 1, and piston 4 is mounted in the liquid reservoir.It is described
Drive system includes controlling the driving mechanism of driving mechanism and control spool main body rotation that piston 4 pumps, piston 4
When being moved downwardly to extreme position, the first inlet tube 14 is fully on by the first groove of the notch 12-1 with the second inlet tube 13, and first
Outlet tube 15 is blocked with the second outlet tube 3, feed liquor in liquid reservoir；When piston 4 moves upward to extreme position, first goes out liquid
Pipe 15 is fully on by the second groove of the notch 12-2 with the second outlet tube 3, and the first inlet tube 14 is blocked with the second inlet tube 13, liquid
Liquid in body vessel is discharged.
The drive system includes driving motor 6, and eccentric wheel is equipped on the rotary output axis of driving motor 6, described inclined
Heart wheel is sequentially connected by the piston rod of connecting rod of eccentric wheel 9 and piston 4, and the upper end of connecting rod of eccentric wheel 9 passes through pivot pin and piston rod
Hinged, lower end is sleeved on the eccentric shaft of eccentric wheel, while the eccentric shaft of eccentric wheel is also eccentric by synchronising (connecting) rod 10 and spool
Axis connection while so that driving motor 6 is pumped with piston 4 by eccentric wheel and connecting rod of eccentric wheel 9, also pushes same
It walks spool 12 to rotate, and an oscillation cycle of piston 4 corresponds to a swing circle of spool main body.
The eccentric wheel and connecting rod of eccentric wheel 9 are mounted in the pedestal of sealing, and the tubular container is mounted on the top of pedestal
End, the open top of liquid reservoir are closed by sealing cover 2, and the sealing cover 2 goes out equipped with the second inlet tube 13 of connection, second
The caliber of liquid pipe 3 and liquid reservoir, valve body 1 are then fixed on the sealing cover 2.Piston rod bottom end passes through tubular container bottom
Sealing structure stretches into pedestal, is connect with connecting rod of eccentric wheel 9, and driving motor 6 is mounted on the front side of pedestal, the synchronising (connecting) rod 10
Then the present external rear side of setting, spool eccentric shaft are also correspondingly arranged at the rear side of spool main body, are connect with synchronising (connecting) rod 10, institute
Stating the upper/lower terminal of synchronising (connecting) rod 10 then makes by bearing holder (housing, cover) on the eccentric shaft of spool eccentric shaft and eccentric wheel, synchronising (connecting) rod
10 outsides are equipped with case 11.
For the ease of monitoring the open/close states of syringe pump internal structure in real time, code-disc 8 is installed on the eccentric wheel, bias
The lower section of wheel is equipped with corresponding optocoupler 7, the displacement angle for acquiring driving motor 6, to feed back the conducting of 1 liquid in-out mouth of valve body
State.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, the utility model requires protection scope is by appended claims, specification and its equivalent
It defines.
Claims (6)
1. a kind of reciprocating syringe pump is equipped with valve body（1）, liquid reservoir, piston（4）And drive system, it is characterised in that：
The valve body（1）It is interior to be equipped with synchronous spool（12）, synchronous spool（12）Including cylindrical spool main body, spool main body exists
The both sides of its radial direction are respectively provided with a kerf slot, and two grooves of the notch are staggered in its axial direction；
Valve body（1）It is equipped with the first inlet tube being connect with external system（14）With the first outlet tube（15）, connect with liquid reservoir
The second logical inlet tube（13）With the second outlet tube（3）, first inlet tube（14）Nozzle and the second inlet tube（13）'s
Nozzle is disposed adjacent, corresponding first groove of the notch（12-1）Position, the first outlet tube（15）Nozzle and the second outlet tube（3）'s
Nozzle is disposed adjacent, corresponding second groove of the notch（12-2）Position, and four nozzles are located at the same of spool main body radial direction
Side, in the rotary course of spool main body, the first inlet tube（14）With the second inlet tube（13）, the first outlet tube (15) and second
Outlet tube（3）Alternating is connected by the corresponding groove of the notch；
The liquid reservoir is arranged in valve body（1）Lower section, piston（4）In the liquid reservoir；
The drive system includes control piston（4）The driving of the driving mechanism and control spool main body rotation that pump
Mechanism, piston（4）An oscillation cycle correspond to a swing circle of spool main body, piston（4）It is moved downwardly to specific bit
When setting, the first inlet tube（14）With the second inlet tube（13）It is switched on；Piston（4）When moving upward to designated position, first goes out
Liquid pipe (15) and the second outlet tube（3）It is switched on.
2. a kind of reciprocating syringe pump according to claim 1, which is characterized in that the notch depth of the groove of the notch does not surpass
Cross the radius of spool main body.
3. a kind of reciprocating syringe pump according to claim 1, it is characterised in that：
The synchronous spool（12）It is made of the spool main body and spool eccentric shaft, the spool eccentric shaft is flat with spool main body
Row, bias are fixed on one end of spool main body；
The drive system includes driving motor（6）, driving motor（6）Rotary output axis on eccentric wheel is installed, it is described partially
Heart wheel passes through connecting rod of eccentric wheel（9）It is sequentially connected with piston rod, connecting rod of eccentric wheel（9）Upper end pass through pivot pin and piston rod and cut with scissors
It connects, lower end is sleeved on the eccentric shaft of eccentric wheel, while the eccentric shaft of eccentric wheel also passes through synchronising (connecting) rod（10）With spool bias
Axis connection makes driving motor（6）Pass through eccentric wheel and connecting rod of eccentric wheel（9）Band piston（4）While pumping,
Push synchronous spool（12）Rotation.
4. a kind of reciprocating syringe pump according to claim 3, which is characterized in that be equipped with setting-up eccentricity wheel and eccentric wheel connects
Bar（9）Pedestal and protection in synchronising (connecting) rod（10）The case in outside（11）, the tubular container of liquid reservoir is set mounted on institute
It states on pedestal, piston rod bottom end passes through the sealing structure of tubular container bottom to stretch into pedestal, with connecting rod of eccentric wheel（9）Connection；
Valve body（1）Mounted on the top of the tubular container, driving motor（6）Mounted on the front side of pedestal, the synchronising (connecting) rod（10）
The then present external rear side of setting, spool eccentric shaft is correspondingly arranged at the rear side of spool main body, with synchronising (connecting) rod（10）Connection, institute
State synchronising (connecting) rod（10）Upper/lower terminal by bearing holder (housing, cover) on the eccentric shaft of spool eccentric shaft and eccentric wheel.
5. a kind of reciprocating syringe pump according to claim 4, which is characterized in that the open top of the liquid reservoir is logical
Cross sealing cover（2）Closing, the sealing cover（2）It is equipped with the second inlet tube of connection（13）, the second outlet tube（3）And liquid reservoir
Caliber, valve body（1）It is fixed on the sealing cover（2）On.
6. a kind of reciprocating syringe pump according to any one of claim 3-5, which is characterized in that set on the eccentric wheel
There is code-disc（8）, the lower section of eccentric wheel is equipped with corresponding optocoupler（7）, for acquiring driving motor（6）Displacement angle, feedback valve
Body（1）The conducting state of liquid in-out mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405438.3U CN207673528U (en) | 2017-10-29 | 2017-10-29 | Reciprocating syringe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405438.3U CN207673528U (en) | 2017-10-29 | 2017-10-29 | Reciprocating syringe pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673528U true CN207673528U (en) | 2018-07-31 |
Family
ID=62964723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721405438.3U Withdrawn - After Issue CN207673528U (en) | 2017-10-29 | 2017-10-29 | Reciprocating syringe pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676250A (en) * | 2017-10-29 | 2018-02-09 | 南京润泽流体控制设备有限公司 | Reciprocating syringe pump |
| CN114810533A (en) * | 2022-03-30 | 2022-07-29 | 杭州力龙液压有限公司 | Control valve group, tool, hydraulic pump, control valve group assembling method and engineering machinery |
-
2017
- 2017-10-29 CN CN201721405438.3U patent/CN207673528U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676250A (en) * | 2017-10-29 | 2018-02-09 | 南京润泽流体控制设备有限公司 | Reciprocating syringe pump |
| CN107676250B (en) * | 2017-10-29 | 2024-03-15 | 南京润泽流体控制设备有限公司 | Reciprocating injection pump |
| CN114810533A (en) * | 2022-03-30 | 2022-07-29 | 杭州力龙液压有限公司 | Control valve group, tool, hydraulic pump, control valve group assembling method and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180731 Effective date of abandoning: 20240315 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180731 Effective date of abandoning: 20240315 |