CN105889040A - Peristaltic pump - Google Patents
Peristaltic pump Download PDFInfo
- Publication number
- CN105889040A CN105889040A CN201610325916.3A CN201610325916A CN105889040A CN 105889040 A CN105889040 A CN 105889040A CN 201610325916 A CN201610325916 A CN 201610325916A CN 105889040 A CN105889040 A CN 105889040A
- Authority
- CN
- China
- Prior art keywords
- pump
- peristaltic pump
- extruding wheel
- pump line
- extrusion chamber
- 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.)
- Granted
Links
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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
- F04B43/0072—Special features particularities of the flexible members of tubular flexible members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a peristaltic pump. The peristaltic pump comprises a pump shell, a front base plate, a rear cover plate, a pump pipe, a rolling assembly and a driving motor for driving the rolling assembly. The pump shell is internally provided with a squeezing cavity. The rolling assembly and the pump pipe are arranged in the squeezing cavity, and the pump pipe surrounds the rolling assembly. The rolling assembly comprises a spindle, a squeezing wheel and a bracket connecting the spindle and the squeezing wheel. The spindle is connected to a rotating shaft of the driving motor. The peristaltic pump is characterized in that the surrounding angle of the pump pipe in the squeezing cavity is larger than 360 degrees, thus, two parallel circular-arc sections in a front-back mode are formed, and then the circular-arc sections are led out of the squeezing cavity through an inlet end and an outlet end. The number of the squeezing wheel is one, and the squeezing wheel covers the two circular-arc sections. According to the peristaltic pump, no pressing dead angle exists, and the stability and the precision of discharging are ensured.
Description
Technical field
The present invention relates to liquid pump field, specifically a kind of peristaltic pump.
Background technology
Peristaltic pump is a kind of metering filling pump, and its operation principle is to make 360 ° of degree in pump case by extruding wheel
Rotate, travel forward in pinch roller extruding pump line, make pump line rear end produce vacuum, material is sucked in pump line, by
The extruding crop rotation followed up below advances, thus defines a kind of peristaltic pump with transportation function.The meter of peristaltic pump
Amount, by driving motor to control flow, can reach the most product-filled purpose, because of peristaltic pump valveless and
Sealing member and there is good seal performance, the most not with contacting external air, not by environmental pollution.Used widely
In conveying liquid, air-flow fluid-mixing and various fluid-mixing, apply also for various there is grinding, have burn into
The product of oxygen sensitivity characteristic.
And current peristaltic pump both domestic and external is for the ease of the suction of material, commonly used three or more than three squeeze
Pinch roller, and each extruding wheel can produce one and compress dead angle, compressing dead angle is to affect filling measurement degree of accuracy
Subject matter, extruding wheel is the most, and the error of generation is the biggest；Furthermore whenever extruding wheel turns around in pump housing inward turning,
Extruding wheel is the most, and pump line will stand the most crush injuries, be substantially reduced service life, therefore determines reasonably
Extruding wheel quantity and distributing position are the most crucial and important problems.
For solving the problems referred to above, Chinese patent CN2030817171U discloses the peristaltic pump that a kind of flow is controlled.
With reference to Fig. 1, this peristaltic pump includes pump case 1 ', pump line 2 ', rolls assembly and roll driving of assembly for driving
Galvanic electricity machine, drives motor to be connected with the side of pump case 1 ', and the opposite side of pump case 1 ' has extrusion chamber, rolls
Assembly and pump line 2 ' are placed in extrusion chamber, and pump line 2 ' is around rolling assembly, the entrance point 21 ' of pump line 2 '
Stretch out pump case 1 ' respectively outward with the port of export 22 ', described in roll assembly include main shaft 51 ' and two extruding wheel
52 ', main shaft 51 ' is connected with the rotating shaft transmission driving motor, and two extruding wheels 52 ' are symmetrical by support 53 '
It is distributed in main shaft 51 ' both sides.This technical scheme, by using two extruding wheels, reduces cumulative error, with
Time decrease the extruding wheel crush injury to pump line, extend service life, but fundamentally do not solve
Certainly the problems referred to above.
Further, the peristaltic pump of said structure, owing to entrance point 21 ' and the port of export 22 ' of pump line 2 ' are in
On same plane, and the position of entrance point 21 ' and the port of export 22 ' keeps a segment distance, when one of them squeezes
When pinch roller 52 ' is in the position between the port of export 22 ' and entrance point 21 ', another extruding wheel 52 ' is used for
Material in locking pipe, otherwise the pressure moment in pump line 2 ' is released, and material forms backflow, thus cannot enter
Row fill.The most existing peristaltic pump at least must use two extruding wheels.
Summary of the invention
The present invention is to solve there is above-mentioned technical problem in prior art, it is desirable to provide a kind of follow-on wriggling
Pump, measures accurately with further raising and increases the service life.
For solving the problems referred to above, the present invention by the following technical solutions: a kind of peristaltic pump, including pump case, front stall
Plate, back shroud, pump line, roll assembly and roll the driving motor of assembly for driving, having crowded in pump case
Pressure chamber, described rolls assembly and pump line is placed in extrusion chamber, and pump line is around rolling assembly；Described roll group
Part includes main shaft, extruding wheel and connects both supports, and described main shaft is connected to drive the rotating shaft of motor, its
Be characterised by the described pump cincture angle in extrusion chamber more than 360 degree, thus two parallel before and after formation
Arc section, the most respectively extrusion chamber described in drawing；Described extruding wheel is one, and length covers described
Two arc sections.
A kind of peristaltic pump of the present invention, pump line cincture angle in extrusion chamber is more than 360 degree, and extruding wheel is from pump
The entrance point of pipe starts to extrude pump line, still keeps with entrance point when arriving the port of export after rotating 360 degree
, the most there is not compression dead angle in contact, extruding wheel all keeps contacting and formed extruding with pump line from start to finish, protects
The stability of card discharging and degree of accuracy.Another important feature of the present invention is only with an extruding wheel, passes through
Motor controls the rotational angle of extruding wheel accurately and efficiently, there is not cumulative error, is greatly improved control
Degree of accuracy processed, therefore the invention is particularly suited to the medicine fill field the highest to fill exact requirements.Meanwhile,
Owing to using an extruding wheel, the abrasion to pump line can be reduced to greatest extent, improve the service life of pump line.
According to the present invention, described support is a pair, can more stably supports main shaft and extruding take turns.Described
Main shaft is fixed on the pair of support, when main shaft is with when driving electric machine rotation, drives support together with extruding wheel
Rotate；Described extruding wheel is connect with described pair of brackets axle by extruding wheel shaft, revolves round the sun around main shaft at extruding wheel
While also around extruding wheel shaft rotation, thus the material in pump line can be formed effectively extruding, and friction can be reduced
Power, improves overall efficiency.Opposite side relative with described extruding wheel shaft in described pair of brackets is additionally provided with one
Individual countershaft, to improve the stability rolling assembly.
According to the present invention, the entrance point of described pump line and the port of export stretch out described extrusion chamber from both sides.Pump line exists
Returning to starting point after turning over a circle in extrusion chamber, then the trend along body stretches out extrusion chamber to both sides, thus
The crush resistance of the interior material of pipe can be reduced.
According to the present invention, the entrance point of described pump line and the port of export are additionally provided with adaptor, it is simple to directly with extraneous
Feed pipe connect.Described adaptor has halfpace, inner contact mouth, outside polished rod and lateral joint
Mouth；Described pump case both sides offer stepped hole；Pump line and " T " it is set with successively on described inner contact mouth
Shape elbow set, is limited in the limited step in described stepped hole and adaptor bottom described "T"-shaped elbow set
Between halfpace；Being set with a gland nut on described outside polished rod, described gland nut is with described
Stepped hole screw thread connect.During installation, first the entrance point of pump line is pulled out pump case, and be sleeved on inner contact mouth
On, it is set with upper elbow sleeve the most again；Finally, external side light bar is set with gland nut, and gland nut is screwed in
In stepped hole, until halfpace and "T"-shaped elbow set are limited on limited step by gland nut.The port of export
It is also adopted by identical method be attached with pump case and position.This structure be advantageous in that adaptor installation and
Fix and can carry out after rolling assembly, fore beam and back shroud installation at pump case, do not interfere with entirety
Sealing and reliability, and be also beneficial to change pump line and adaptor.And in the prior art, it is necessary to first pacify
Install adaptor, by compression bolt, complete machine is fixed the most again.
According to the present invention, the endoporus of described elbow set is taper hole, can with tube pump after "T"-shaped elbow set is pressed into
By fixing.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural representation of the peristaltic pump of the present invention.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is the structural representation that the present invention rolls assembly.
Fig. 5 is the pump line of the present invention scheme of installation in extrusion chamber.
Fig. 6 is the use state diagram that the present invention extrudes when taking turns zero crossing.
Detailed description of the invention
With reference to Fig. 1, the peristaltic pump that a kind of flow of prior art is controlled, its defect is already discussed above,
Do not repeat them here.
With reference to Fig. 2, Fig. 3 and Fig. 4, a kind of peristaltic pump of the present invention, including pump case 1, fore beam 13, after
Cover plate 14, pump line 7, roll assembly and roll the driving motor of assembly for driving, having crowded in pump case 1
Pressure chamber 17, described rolls assembly and pump line 7 is placed in extrusion chamber, and pump line 2 is around rolling assembly.
Pump case 1 and fore beam 13 offer one group of screw 11, back shroud 14 offers corresponding
Counterbore, fixes pump case 1, fore beam 13 and back shroud 14 by ejecting screw.
The described assembly that rolls includes main shaft 3, extruding wheel 2 and connects both supports 6.Described support 6
It it is a pair.Described main shaft 3 is fixed on the pair of support 6, and is connected to drive the rotating shaft of motor.Institute
The extruding wheel 2 stated is connect with described pair of brackets 6 axle by extruding wheel shaft 4.In described pair of brackets 6 with
The opposite side that described extruding wheel shaft 4 is relative is additionally provided with a countershaft 5, to improve the stability rolling assembly.
With reference to Fig. 5, the described pump line 7 cincture angle in extrusion chamber 17 is more than 360 degree, thus is formed
The most parallel two arc sections 24,25, are drawn described by entrance point 15 and the port of export 16 the most respectively
Extrusion chamber 17, described extruding wheel 2 is one, and two arc sections 24,25 described in length covering.Institute
The angle A stating two parallel circle segmental arcs 24,25 is 3～5 degree.
The entrance point 15 of described pump line 7 and the port of export 16 stretch out described extrusion chamber 17 from both sides.Pump line 7
Returning to starting point after turning over a circle in extrusion chamber 17, then the trend along body stretches out extrusion chamber to both sides
17, thus the crush resistance of the interior material of pipe can be reduced.
Being additionally provided with adaptor 9 on the entrance point 15 of described pump line 7 and the port of export 16, described adaptor 9 has
There are halfpace 18, inner contact mouth 20, outside polished rod 23 and lateral joint mouth 21；Described pump case 1
Both sides offer stepped hole 22；Pump line 7 and "T"-shaped elbow set it is set with successively on described inner contact mouth 20
10, it is limited in the limited step 19 in described stepped hole 22 and switching bottom described "T"-shaped elbow set 10
Between the halfpace 18 of 9；Described outside polished rod 23 is set with a gland nut 8, described
Gland nut 8 is threadeded with described stepped hole 22.
Described elbow set 10 endoporus be taper hole, "T"-shaped elbow set 10 be pressed into after can more reliably with pump
Pipe 7 is fixed.
The installation process of the present invention is as follows:
1, assembly will be rolled and pump line 7 is placed in the extrusion chamber 17 of pump case 1, and make pump line 2 around rolling group
Part.The pump line 7 cincture angle in extrusion chamber 17 is more than 360 degree, thus two circles parallel before and after being formed
Segmental arc 24,25, is drawn described extrusion chamber 17 by entrance point 15 and the port of export 16 the most respectively.
2, pump case 1 is fixed by ejecting screw 12 with fore beam 13 and back shroud 14.
3, first the entrance point 15 of pump line is pulled out pump case 1, and be sleeved on inner contact mouth 20, the most again
Suit upper elbow sleeve 10；External side light bar 23 is set with gland nut 8, and gland nut 8 is screwed in pump case 1
In the stepped hole 22 of upper left side, it is limited to until halfpace 18 and "T"-shaped elbow are overlapped 10 by gland nut 8
On limited step 19.
4, the port of export 16 is also adopted by identical method and is attached with pump case 1 and positions.
The operation principle of the present invention is as follows: power-on, drives driven by motor main shaft 3 pin to rotate, and main shaft 3 leads to
Cross pair of brackets 6 and drive extruding wheel 2 rotation.Assume that extruding wheel 2 is started from scratch to rotate clockwise, by pump line 7
Interior material arrives the port of export 16 after entrance point 15 rotates clockwise 360 degree.Reference Fig. 6, now, by
Forward lap setting in the entrance point 15 of pump line 7 and the port of export 16, and the length extruding wheel 2 covers described
The entrance point 15 of pump line 7 and the port of export 16, when therefore extruding wheel 2 contacts with entrance point 15 again, still protect
Hold and the contacting of the port of export 16, then enter second circulation.
It is understood that above-described embodiment is the description of the invention rather than limitation of the present invention,
Any without departing from the innovation and creation in the range of true spirit, within each falling within protection scope of the present invention.
Claims (9)
1. a peristaltic pump, including pump case (1), fore beam (13), back shroud (14), pump line (7), rolls
Assembly and roll the driving motor of assembly for driving, has extrusion chamber (17), institute in pump case (1)
State roll assembly and pump line (7) is placed in extrusion chamber, and pump line (2) is around rolling assembly；Described
Roll assembly include main shaft (3), extruding wheel (2) and connect both supports (6), described main shaft (3)
It is connected to drive the rotating shaft of motor, it is characterised in that the described pump line (7) ring in extrusion chamber (17)
Around angle more than 360 degree, thus two arc sections (24,25) parallel before and after formation, the most respectively by
Extrusion chamber (17) described in entrance point (15) and the port of export (16) extraction；Described extruding wheel (2)
It is one, and two arc sections (24,25) described in length covering.
2. a kind of peristaltic pump as claimed in claim 1, it is characterised in that described support (6) is a pair.
3. a kind of peristaltic pump as claimed in claim 2, it is characterised in that described main shaft (3) is fixed on described
In pair of brackets (6), described extruding wheel (2) is by extruding wheel shaft (4) and described pair of brackets
(6) axle connects.
4. a kind of peristaltic pump as claimed in claim 3, it is characterised in that described pair of brackets (6) goes up and institute
The opposite side that the extruding wheel shaft (4) stated is relative is additionally provided with a countershaft (5).
5. a kind of peristaltic pump as claimed in claim 1, it is characterised in that the entrance point (15) of described pump line (7)
Described extrusion chamber (17) is stretched out from both sides with the port of export (16).
6. a kind of peristaltic pump as described in claim 1-5 any one, it is characterised in that entering of described pump line (7)
It is additionally provided with adaptor (9) on mouth end (15) and the port of export (16).
7. a kind of peristaltic pump as claimed in claim 5, it is characterised in that described adaptor (9) has centre
Platform (18), inner contact mouth (20), outside polished rod (23) and lateral joint mouth (21)；Described
Pump case (1) both sides offer stepped hole (22)；Armored pump is overlapped successively on described inner contact mouth (20)
Pipe (7) and "T"-shaped elbow set (10), described "T"-shaped elbow set (10) bottom is limited in described
Between limited step (19) and the halfpace (18) of adaptor (9) in stepped hole (22)；?
Described outside polished rod (23) one gland nut (8) of upper suit, described gland nut (8) and institute
The stepped hole (22) stated is threaded.
8. a kind of peristaltic pump as claimed in claim 7, it is characterised in that the endoporus of described elbow set (10) is cone
Hole.
9. a kind of peristaltic pump as claimed in claim 1, it is characterised in that said two parallel circle segmental arc (24,25)
Angle (A) be 3～5 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325916.3A CN105889040B (en) | 2016-05-16 | 2016-05-16 | A kind of peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325916.3A CN105889040B (en) | 2016-05-16 | 2016-05-16 | A kind of peristaltic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105889040A true CN105889040A (en) | 2016-08-24 |
| CN105889040B CN105889040B (en) | 2018-04-06 |
Family
ID=56717472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610325916.3A Active CN105889040B (en) | 2016-05-16 | 2016-05-16 | A kind of peristaltic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889040B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292215A (en) * | 2023-05-16 | 2023-06-23 | 佛山市稚蒙环境科技有限公司 | Peristaltic pump capable of prolonging service life of conveying pump pipe |
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| JP2001301195A (en) * | 2000-04-21 | 2001-10-30 | Seiko Epson Corp | Ink jet recorder |
| JP2001342975A (en) * | 2000-03-30 | 2001-12-14 | Seiko Epson Corp | Tube pump and ink jet recorder using the tube pump |
| JP2005054709A (en) * | 2003-08-06 | 2005-03-03 | Seiko Epson Corp | Fluid ejector |
| US20080056919A1 (en) * | 2006-08-31 | 2008-03-06 | Seiko Epson Corporation | Tube pump and liquid ejecting apparatus |
| JP2008196365A (en) * | 2007-02-13 | 2008-08-28 | Seiko Epson Corp | Tube pump and fluid injection device |
| CN102374351A (en) * | 2010-08-06 | 2012-03-14 | 徐静 | Novel hose coupler structure |
| CN202756211U (en) * | 2012-08-24 | 2013-02-27 | 杨新民 | Low-pulse continuous outputting single roller hose pump |
| CN205689395U (en) * | 2016-05-16 | 2016-11-16 | 严秉华 | A kind of peristaltic pump |
-
2016
- 2016-05-16 CN CN201610325916.3A patent/CN105889040B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342975A (en) * | 2000-03-30 | 2001-12-14 | Seiko Epson Corp | Tube pump and ink jet recorder using the tube pump |
| JP2001301195A (en) * | 2000-04-21 | 2001-10-30 | Seiko Epson Corp | Ink jet recorder |
| JP2005054709A (en) * | 2003-08-06 | 2005-03-03 | Seiko Epson Corp | Fluid ejector |
| US20080056919A1 (en) * | 2006-08-31 | 2008-03-06 | Seiko Epson Corporation | Tube pump and liquid ejecting apparatus |
| JP2008196365A (en) * | 2007-02-13 | 2008-08-28 | Seiko Epson Corp | Tube pump and fluid injection device |
| CN102374351A (en) * | 2010-08-06 | 2012-03-14 | 徐静 | Novel hose coupler structure |
| CN202756211U (en) * | 2012-08-24 | 2013-02-27 | 杨新民 | Low-pulse continuous outputting single roller hose pump |
| CN205689395U (en) * | 2016-05-16 | 2016-11-16 | 严秉华 | A kind of peristaltic pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292215A (en) * | 2023-05-16 | 2023-06-23 | 佛山市稚蒙环境科技有限公司 | Peristaltic pump capable of prolonging service life of conveying pump pipe |
| CN116292215B (en) * | 2023-05-16 | 2023-08-11 | 佛山市稚蒙环境科技有限公司 | Peristaltic pump capable of prolonging service life of conveying pump pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105889040B (en) | 2018-04-06 |
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