CN107246380B - Linear peristaltic pump - Google Patents
Linear peristaltic pump Download PDFInfo
- Publication number
- CN107246380B CN107246380B CN201710600630.6A CN201710600630A CN107246380B CN 107246380 B CN107246380 B CN 107246380B CN 201710600630 A CN201710600630 A CN 201710600630A CN 107246380 B CN107246380 B CN 107246380B
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- China
- Prior art keywords
- assembly
- lifting
- hose
- roller
- cover plate
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- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 21
- 230000033001 locomotion Effects 0.000 claims abstract description 52
- 230000002265 prevention Effects 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 5
- 230000000151 anti-reflux effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- F04B43/1223—Machines, pumps, or pumping installations having flexible working members having peristaltic action the actuating elements, e.g. rollers, moving in a straight line during squeezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a linear peristaltic pump, which comprises: the device comprises a lifting driving assembly, a pump body assembly, a linear reciprocating motion module, a backflow prevention device, a pressure pipe roller assembly, a hose assembly and a cover plate assembly; the lifting driving assembly, the backflow preventing device and the linear reciprocating motion module are all arranged on the pump body assembly; the hose assembly and the cover plate assembly are arranged on the lifting driving assembly, and the lifting driving assembly drives the hose assembly and the cover plate assembly to move up and down; the pressure pipe roller assembly is arranged on the linear reciprocating motion module; the backflow prevention device is arranged at one end of the linear reciprocating motion module. The invention has the advantages of simple principle, low cost, stable transmission, higher metering precision and the like.
Description
Technical Field
The invention mainly relates to the technical field of fluid metering, in particular to a linear peristaltic pump suitable for fluid.
Background
With the development of technology, the requirements of many special industries on the precision and cleanliness of measurement are higher and higher, such as the biopharmaceutical industry, the medical industry, the chemical industry and the like. At present, plunger pump and peristaltic pump technologies are generally adopted when the fluid is accurately metered. However, the existing method still has some defects, thereby greatly influencing the metering accuracy.
In the existing linear peristaltic pump technology, a linear reciprocating motion module is fixed, and a pipe pressing roller needs to be installed on the linear reciprocating motion module to do linear motion and simultaneously do ascending and descending pipe pressing actions, so that the whole transmission structure is complex. When pressing the pipe, the pressure roller is farthest away from the linear module slider, and the resistance of the elastic hose stressed during the working process is the largest, so that the torque of the linear module slider is increased, the transmission efficiency is low, and the transmission is relatively unstable. Meanwhile, in the existing linear peristaltic pump technology, the backflow prevention device and the pressure pipe roller device need to be driven by one set of independent power, the control is relatively complex, and the stability is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides the linear peristaltic pump which is simple in principle, low in cost, stable in transmission and higher in metering precision.
In order to solve the technical problems, the invention adopts the following technical scheme:
an in-line peristaltic pump comprising: the device comprises a lifting driving assembly, a pump body assembly, a linear reciprocating motion module, a backflow prevention device, a pressure pipe roller assembly, at least one group of hose assemblies and a cover plate assembly; the lifting driving assembly, the backflow preventing device and the linear reciprocating motion module are all arranged on the pump body assembly; the hose assembly and the cover plate assembly are arranged on the lifting driving assembly, and the lifting driving assembly drives the hose assembly and the cover plate assembly to move up and down; the pressure pipe roller assembly is arranged on the linear reciprocating motion module; the backflow prevention device is arranged at one end of the linear reciprocating motion module.
As a further improvement of the invention: the backflow prevention device is a one-way valve or a pinch valve.
As a further improvement of the invention: the anti-backflow device is connected with the lifting driving assembly, and the lifting movement of the anti-backflow device and the lifting movement of the hose assembly and the cover plate assembly share one set of power driving system.
As a further improvement of the invention: the lifting driving assembly comprises a driving power component and a cam mechanism, and the sequence of lifting movement of the hose assembly and the cover plate assembly and the sequence of pipe clamping movement of the backflow prevention device are controlled by means of curves of the cam mechanism.
As a further improvement of the invention: the output end of the driving power component is connected with the connecting shaft through a coupler, and the connecting shaft is provided with a hose lifting cam mechanism and an anti-backflow lifting cam mechanism.
As a further improvement of the invention: the hose assembly is arranged between the pressure pipe roller assembly and the cover plate assembly.
As a further improvement of the invention: the pipe pressing roller assembly comprises a roller mounting seat, a pipe pressing roller and a roller shaft, the pipe pressing roller is mounted on the roller mounting seat through the roller shaft, and the pipe pressing roller is used for being matched with the hose assembly to perform extrusion action.
As a further improvement of the invention: the hose assembly comprises an elastic hose and pipe joints, the elastic hose is arranged along the motion direction of the linear reciprocating motion module, and the pipe joints are arranged at two ends of the elastic hose.
As a further improvement of the invention: the pipe pressing roller assemblies, the hose assemblies and the linear reciprocating motion modules form a group in a one-to-one correspondence mode, and the linear peristaltic pump comprises more than two groups and is controlled simultaneously.
Compared with the prior art, the invention has the advantages that: the linear peristaltic pump is simple in structure, stable in transmission and high in metering precision. The linear reciprocating motion module does not do lifting motion, and the controlling part is simple stable, and the energy consumption is low, can guarantee linear motion's accuracy nature, finally does benefit to the optimization and promotes holistic control accuracy and measurement accuracy.
Drawings
Fig. 1 is a front sectional view of a first embodiment of the present invention.
Fig. 2 is a left side sectional view of fig. 1.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention in operation.
Fig. 4 is a front sectional view of the second embodiment of the present invention.
Fig. 5 is a schematic view of a lifting driving assembly according to a second embodiment of the present invention.
Illustration of the drawings:
1. a lift drive assembly; 11. a drive power component; 12. a coupling; 13. a bearing seat; 14. a module lifting cam mechanism; 15. a lifting guide rod; 16. lifting the guide rod seat; 17. an anti-backflow lifting cam mechanism; 18. a connecting shaft; 2. a pump body assembly; 3. A linear reciprocating motion module; 4. a backflow prevention device; 5. Pressing a pipe roller assembly; 51. a roller mounting seat; 52. pressing a pipe roller; 53. a roller shaft; 6. a hose assembly; 61. an elastic hose; 62. a pipe joint; 7. an anti-reflux valve; 8. a module mounting plate; 9. a cover plate assembly.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Example 1: as shown in fig. 1, 2, 3 and 5, a linear peristaltic pump of the present invention comprises: the device comprises a lifting driving assembly 1, a pump body assembly 2, a linear reciprocating motion module 3, a backflow prevention device 4, a pressure pipe roller assembly 5, at least one group of hose assemblies 6 and a cover plate assembly 9. The lifting driving assembly 1, the backflow prevention device 4 and the linear reciprocating motion module 3 are all arranged on the pump body assembly 2 and can be arranged through a module mounting plate 8; the hose assembly 6 and the cover plate assembly 9 are arranged on the lifting driving assembly 1, and the hose assembly 6 and the cover plate assembly 9 can be lifted and lowered by driving of the lifting driving assembly 1. The pressure pipe roller assembly 5 is directly and fixedly arranged on the linear reciprocating motion module 3. The backflow preventing device 4 is disposed at one end of the linear reciprocating module 3.
In this embodiment, it is understood that in other embodiments, the backflow prevention device 4 may adopt the backflow prevention valve 7, such as a one-way valve or a pinch valve, or an on-off valve, according to actual needs, but is not limited to the on-off valve and the valve set.
In this embodiment, the lifting driving assembly 1 includes a driving power component 11 and a cam mechanism, and controls the lifting movement of the hose assembly 6 and the cover plate assembly 9 by means of cam curve control, and cooperates with the sequence of pipe clamping movement of the backflow prevention device 4. In this embodiment, the driving power component 11 is connected to the connecting shaft 18 through the coupling 12 and the bearing seat 13, at least one set of module lifting cam mechanism 14 is installed on the connecting shaft 18, the module lifting cam mechanism 14 includes a lifting guide rod 15 and a lifting guide rod seat 16, and the lifting guide rod 15 is installed on the connecting shaft 18 through the lifting guide rod seat 16. In this example, the two sets of module lifting cam mechanisms 14 are located at two ends of the connecting shaft 18, corresponding to two ends of the hose assembly 6.
In a specific application example, the linear reciprocating module 3 can select a suitable mechanism according to actual needs as long as the requirement of linear reciprocating motion is met.
In this embodiment, the pipe pressing roller assembly 5 includes a roller mounting seat 51, a pipe pressing roller 52 and a roller shaft 53, the pipe pressing roller 52 is mounted on the roller mounting seat 51 through the roller shaft 53, and the pipe pressing roller 52 is used for cooperating with the hose assembly 6 to perform a pressing action.
In this embodiment, the hose assembly 6 includes an elastic hose 61 and a pipe joint 62, the elastic hose 61 is disposed along the moving direction of the linear reciprocating module 3, and both ends of the elastic hose 61 are provided with the pipe joints 62.
In this embodiment, the hose assembly 6 is disposed intermediate the pinch roller assembly 5 and the cover plate assembly 9.
When the lifting pipe pressing roller assembly works, the lifting driving assembly 1 drives the hose assembly 6 and the cover plate assembly 9 to carry out lifting movement, so that the pipe pressing roller assembly 5 contacts, extrudes or leaves the hose assembly 6; meanwhile, the linear reciprocating motion module 3 drives the pressure pipe roller assembly 5 to move along the arrangement direction of the hose assembly 6 so as to extrude the hose assembly 6 to finish quantitative metering operation. In the process, the backflow prevention device 4 is also matched with the lifting movement and the hose assembly 6 to prevent the backflow of the fluid.
Example 2: as shown in fig. 4 and 5, a linear peristaltic pump of the present invention includes: lifting drive assembly 1, pump body subassembly 2, straight reciprocating motion module 3, anti-reflux unit 4, pressure pipe roller assembly 5, hose subassembly 6 and apron subassembly 9. The lifting driving assembly 1, the backflow prevention device 4 and the linear reciprocating motion module 3 are all arranged on the pump body assembly 2 and can be arranged through a module mounting plate 8; the hose assembly 6 and the cover plate assembly 9 are arranged on the lifting driving assembly 1, and the hose assembly 6 and the cover plate assembly 9 can be lifted and lowered by driving of the lifting driving assembly 1. The pressure pipe roller assembly 5 is directly and fixedly arranged on the linear reciprocating motion module 3. The backflow preventing device 4 is disposed at one end of the linear reciprocating module 3.
In this embodiment, the backflow prevention device 4 is a pipe clamping component, and the backflow prevention device 4 is connected to the lifting driving assembly 1, and is driven by the lifting driving assembly 1 to perform lifting movement to clamp or loosen a pipe. The lifting movement of the backflow preventer 4 and the lifting movement of the hose assembly 6 and the cover plate assembly 9 share a set of power driving system.
In this embodiment, the lifting driving assembly 1 includes a driving power component 11 and a cam mechanism, and controls the lifting movement of the backflow prevention device 4, the hose assembly 6 and the cover plate assembly 9 by means of cam curve control, and cooperates with the sequence of pipe clamping movement of the backflow prevention device 4. In this embodiment, the driving power component 11 is connected to the connecting shaft 18 through the coupling 12, at least one set of module lifting cam mechanism 14 is installed on the connecting shaft 18, the module lifting cam mechanism 14 includes a lifting guide rod 15 and a lifting guide rod seat 16, and the lifting guide rod 15 is installed on the connecting shaft 18 through the lifting guide rod seat 16. In this example, the two sets of module lifting cam mechanisms 14 are located at two ends of the connecting shaft 18, corresponding to two ends of the hose assembly 6. The connecting shaft 18 is also provided with an anti-backflow lifting cam mechanism 17 for driving and controlling the anti-backflow device 4.
In this embodiment, the pipe pressing roller assembly 5 includes a roller mounting seat 51, a pipe pressing roller 52 and a roller shaft 53, the pipe pressing roller 52 is mounted on the roller mounting seat 51 through the roller shaft 53, and the pipe pressing roller 52 is used for cooperating with the hose assembly 6 to perform a pressing action.
In this embodiment, the hose assembly 6 includes an elastic hose 61 and a pipe joint 62, the elastic hose 61 is disposed along the moving direction of the linear reciprocating module 3, and both ends of the elastic hose 61 are provided with the pipe joints 62.
Referring to fig. 5, the pipe pressing roller assemblies 5, the hose assemblies 6, and the linear reciprocating module 3 are in one-to-one correspondence to form a group, which may be a plurality of groups in this example, and are controlled simultaneously. It is understood that there may be a plurality of cover plate assemblies 9, one for each group.
In other embodiments, the hose assemblies 6 are in more than two groups and can be synchronously controlled by the pressure pipe roller assemblies 5.
When the lifting pipe pressing roller assembly works, the lifting driving assembly 1 drives the hose assembly 6 and the cover plate assembly 9 to carry out lifting movement, so that the pipe pressing roller assembly 5 contacts, extrudes or leaves the hose assembly 6; meanwhile, the linear reciprocating motion module 3 drives the pressure pipe roller assembly 5 to move along the arrangement direction of the hose assembly 6 so as to extrude the hose assembly 6 to finish quantitative metering operation. In the process, the backflow preventer 4 is also driven by the lifting drive assembly 1 to perform lifting movement, and is matched with the hose assembly 6 to prevent the backflow of the fluid.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (7)
1. An in-line peristaltic pump, comprising: the device comprises a lifting driving assembly (1), a pump body assembly (2), a linear reciprocating motion module (3), an anti-backflow device (4), a pressure pipe roller assembly (5), at least one group of hose assemblies (6) and a cover plate assembly (9); the lifting driving assembly (1), the backflow preventing device (4) and the linear reciprocating motion module (3) are all arranged on the pump body assembly (2); the hose assembly (6) and the cover plate assembly (9) are arranged on the lifting driving assembly (1), and the lifting driving assembly (1) drives the hose assembly (6) and the cover plate assembly (9) to move up and down, so that the pressure pipe roller assembly (5) is in contact with, extrudes or leaves the hose assembly (6); the pipe pressing roller assembly (5) is directly and fixedly arranged on the linear reciprocating motion module (3); the backflow prevention device (4) is arranged at one end of the linear reciprocating motion module (3);
the anti-backflow device (4) is connected with the lifting driving assembly (1), and the lifting movement of the anti-backflow device (4) and the lifting movement of the hose assembly (6) and the cover plate assembly (9) share one set of power driving system; the lifting driving assembly (1) comprises a driving power part (11) and a cam mechanism, and the sequence of the lifting movement of the hose assembly (6) and the cover plate assembly (9) and the lifting movement of the backflow preventer (4) is controlled by the curve of the cam mechanism;
the output end of the driving power component (11) is connected with a connecting shaft (18) through a coupler (12), and an anti-backflow lifting cam mechanism (17) and at least one group of module lifting cam mechanisms (14) are mounted on the connecting shaft (18);
the module lifting cam mechanism (14) comprises a lifting guide rod (15) and a lifting guide rod seat (16), and the lifting guide rod (15) is installed on the connecting shaft (18) through the lifting guide rod seat (16).
2. Linear peristaltic pump according to claim 1, characterized in that said linear reciprocating module (3) is fixedly mounted by means of a module mounting plate (8).
3. The linear peristaltic pump according to claim 1, characterized in that said anti-reflux means 4 are anti-reflux valves (7), said anti-reflux valves (7) being one-way valves or pinch valves.
4. Linear peristaltic pump according to any one of claims 1 to 3, characterized in that the hose assembly (6) is arranged intermediate the pinch roller assembly (5) and the cover plate assembly (9).
5. The linear peristaltic pump according to any one of claims 1 to 3, wherein the tube pressing roller assembly (5) comprises a roller mounting seat (51), a tube pressing roller (52) and a roller shaft (53), the tube pressing roller (52) is mounted on the roller mounting seat (51) through the roller shaft (53), and the tube pressing roller (52) is used for cooperating with the hose assembly (6) to perform a squeezing action.
6. Linear peristaltic pump according to any one of claims 1 to 3, characterized in that the hose assembly (6) comprises an elastic hose (61) and a pipe joint (62), the elastic hose (61) being arranged along the direction of movement of the linear reciprocating module (3), the pipe joint (62) being provided at each end of the elastic hose (61).
7. The linear peristaltic pump as claimed in any one of claims 1 to 3, wherein the tube pressing roller assemblies (5), the hose assemblies (6) and the linear reciprocating motion modules (3) form a group in a one-to-one correspondence manner, and the linear peristaltic pump comprises more than two groups and is controlled simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710600630.6A CN107246380B (en) | 2017-07-21 | 2017-07-21 | Linear peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710600630.6A CN107246380B (en) | 2017-07-21 | 2017-07-21 | Linear peristaltic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107246380A CN107246380A (en) | 2017-10-13 |
| CN107246380B true CN107246380B (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710600630.6A Active CN107246380B (en) | 2017-07-21 | 2017-07-21 | Linear peristaltic pump |
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| Country | Link |
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| CN (1) | CN107246380B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139436B (en) * | 2018-09-30 | 2024-06-18 | 湖南执先科技有限公司 | Roller transmission device of linear peristaltic pump |
| CN114576144B (en) * | 2022-04-15 | 2025-03-25 | 保定创锐泵业有限公司 | A peristaltic pump and a control method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1653397A1 (en) * | 1966-01-10 | 1971-07-08 | Ceskoslovenska Akademie Ved | Process and device for conveying liquids in thin hoses |
| US5431307A (en) * | 1994-08-26 | 1995-07-11 | Gencorp Inc. | Dispensing plural components |
| WO2013057109A1 (en) * | 2011-10-21 | 2013-04-25 | Fresenius Vial Sas | Peristaltic pump for pumping a liquid and method for operating a peristaltic pump |
| CN203161500U (en) * | 2013-03-27 | 2013-08-28 | 常州普瑞流体技术有限公司 | Linear type peristaltic pump |
| CN103147964A (en) * | 2013-03-27 | 2013-06-12 | 常州普瑞流体技术有限公司 | Linear peristaltic pump |
| CN103557144B (en) * | 2013-11-07 | 2015-12-02 | 常州普瑞流体技术有限公司 | A kind of linear peristaltic pump for the conveying of fluid precise quantitative |
| CN207048957U (en) * | 2017-07-21 | 2018-02-27 | 长沙执先智量科技股份有限公司 | A kind of linear peristaltic pump |
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2017
- 2017-07-21 CN CN201710600630.6A patent/CN107246380B/en active Active
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| CN107246380A (en) | 2017-10-13 |
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Address after: 410129 room 607, building 4, Xingwei Chuangxin garden, No.57, south section of Huangxing Avenue, Langli street, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: Hunan Zhixian Technology Co.,Ltd. Address before: 410129 room 607, building 4, Xingwei Chuangxin garden, No.57, south section of Huangxing Avenue, Langli street, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee before: CHANGSHA ZENITHSUN INTELLIGENCE QUANTITATIVE TECHNOLOGY Co.,Ltd. |