CN111894838A - Peristaltic device for peristaltic pump - Google Patents
Peristaltic device for peristaltic pump Download PDFInfo
- Publication number
- CN111894838A CN111894838A CN202010874895.7A CN202010874895A CN111894838A CN 111894838 A CN111894838 A CN 111894838A CN 202010874895 A CN202010874895 A CN 202010874895A CN 111894838 A CN111894838 A CN 111894838A
- Authority
- CN
- China
- Prior art keywords
- roller
- positioning plate
- positioning
- peristaltic
- rotating frame
- 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.)
- Pending
Links
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
- F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
- F04B43/1269—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing the rotary axes of the rollers lying in a plane perpendicular to the rotary axis of the driving motor
-
- 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to a peristaltic device for a peristaltic pump, which comprises a rotating frame and at least two groups of roller groups, wherein each roller group comprises at least two rollers, a plane perpendicular to the rotation axis of the rollers is a first projection plane, an arc line connecting the center of a circle of the projection of each roller group is a first arc, and the rollers of each roller group are uniformly arranged on the first arc. The rollers of each roller group are uniformly arranged in the first circular arc, so that the rollers of each roller group are staggered, the flow of fluid is ensured to be stable through the superposition of pulse flows of different soft conveying pipes under the condition that the pulse flows occur in a single conveying pipe, and the working stability of the peristaltic pump is ensured.
Description
Technical Field
The invention belongs to the technical field of peristaltic pumps, and particularly relates to a peristaltic device for a peristaltic pump.
Background
At present, peristaltic pumps use resilient hoses to convey the fluid inside the hose by applying a plurality of advancing pressures successively outside the tube by the rotation of a rotating member that rotates rollers to form a closed section that advances forward. The fluid can not contact any machine parts or other objects of the pump body except the pipeline in the pumping process, and the pump has obvious isolation and safety.
The existing peristaltic pump can generate pulse flow of fluid in the pumping process to influence the working stability of the peristaltic pump, and a known solution is to increase the number of rollers along the rotation direction of a rotating part in the pump, such as: the number of rollers in the rotation direction of the rotation member is increased from 4 to 16. However, this solution leads to an increased number of times the hose is pinched and rubbed in the same position during one rotation cycle, thereby reducing the service life of the hose.
Meanwhile, another known solution is to connect a plurality of motors in parallel with the outside of the housing of the peristaltic pump, and the rotation angles of the rotating shafts of the different motors are different to suppress the pulse flow, but this method results in higher production cost of the peristaltic pump, and makes the peristaltic pump have larger volume and inconvenient use.
Disclosure of Invention
The main object of the present invention is to provide a peristaltic pump device which guarantees the working stability and reduces the costs.
In order to achieve the main object, the peristaltic device for the peristaltic pump provided by the invention comprises a rotating frame and at least two groups of roller sets, wherein each group of roller set comprises at least two rollers, and the roller sets are assembled on the rotating frame; the plane perpendicular to the rotation axis of the roller is a first projection plane, the projection direction parallel to the rotation axis of the roller is a first projection direction, the roller projection of each roller group on the first projection plane along the first projection direction is circular, the arc line connecting the center of the circle of the roller projection of each roller group on the first projection plane is a first arc, the first arc and the rotating frame are coaxially arranged, and the rollers of each roller group are uniformly arranged on the first arc.
It can be seen by above-mentioned scheme that the gyro wheel of each roller train evenly arranges in first circular arc to make the gyro wheel of each roller train stagger each other, each gyro wheel extrudes a conveyer pipe respectively, and the conveyer pipe quantity of peristaltic pump corresponds with the gyro wheel quantity of each roller train and arranges, and then under the condition that pulse flow appears in single conveyer pipe, the pulse flow through different soft conveyer pipes stacks and guarantees that fluidic flow is steady, guarantees the job stabilization nature of peristaltic pump.
Preferably, the number of the roller groups is four.
Furthermore, the number of the rollers of each roller group is four.
Further, the revolving rack is a cylinder, the outer wall of the revolving rack is provided with a positioning device, and each roller is assembled on the positioning device.
Furthermore, the positioning device comprises a first positioning plate, a second positioning plate, a third positioning plate, a fourth positioning plate and a fifth positioning plate, wherein the first positioning plate, the second positioning plate, the third positioning plate, the fourth positioning plate and the fifth positioning plate are sequentially arranged along the rotation axis of the rotating frame.
Furthermore, one positioning opening is respectively arranged on the first positioning plate and the fifth positioning plate, and two positioning openings are respectively arranged on the second positioning plate, the third positioning plate and the fourth positioning plate.
Furthermore, each positioning opening is rotatably clamped with a roller.
Furthermore, be provided with baffle and transmission post in the revolving rack, the transmission post extends from one side of baffle toward the revolving rack outside along the axis of rotation of revolving rack, and the outer wall of transmission post is provided with the reinforcing plate, and the inner wall and the transmission post of revolving rack are connected to the reinforcing plate.
Further, the roller comprises a wheel portion and a shaft portion, the shaft portion is detachably fixedly connected to the wheel portion, and the shaft portion is rotatably assembled on the rotating frame.
Further, the roller comprises a wheel portion and a shaft portion, the shaft portion is fixedly connected to the wheel portion in an integrated mode, and the shaft portion is rotatably assembled on the rotating frame.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
FIG. 1 is an exploded view of an embodiment of a peristaltic pump employing a peristaltic device of the present invention.
FIG. 2 is a block diagram of a turret of an embodiment of a peristaltic device of the present invention.
Fig. 3 is a block diagram of a first housing of a peristaltic pump of the type shown in fig. 1.
FIG. 4 is a block diagram of an embodiment of a peristaltic device of the present invention
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, the peristaltic device provided in this embodiment is applied to a peristaltic pump 100, the peristaltic pump 100 includes a housing and an end cover 1, the end cover 1 is detachably screwed to the housing, the peristaltic device of the peristaltic pump 100 includes a rotating frame 2 and at least two sets of roller sets, each set of roller includes at least two rollers 3, and the roller sets are assembled to the rotating frame 2. In the present embodiment, the turret 2 is an integrally formed part. The number of the roller groups is four, the rollers 3 of each roller group are four, and the rotating frame 2 is a cylinder.
The plane of the rotation axis of the roller 3 is a first projection plane, the projection direction parallel to the rotation axis of the roller 3 is a first projection direction, each roller 3 of each roller group is circular in the projection of the roller 3 of the first projection plane along the first projection direction, the arc line connecting the center of the circle of the projection of each roller 3 of each roller group on the first projection plane is a first arc, the first arc and the rotating frame 2 are coaxially arranged, and the roller 3 of each roller group is uniformly arranged on the first arc.
Referring to fig. 1 and 2, the outer wall of the rotating frame 2 is provided with a positioning device, and each roller 3 is assembled on the positioning device. The positioning device comprises a first positioning plate 5, a second positioning plate 6, a third positioning plate 7, a fourth positioning plate 8 and a fifth positioning plate 9, the first positioning plate 5, the second positioning plate 6, the third positioning plate 7, the fourth positioning plate 8 and the fifth positioning plate 9 are sequentially arranged along the rotation axis of the revolving rack 2, and each roller set is correspondingly provided with the first positioning plate 5, the second positioning plate 6, the third positioning plate 7, the fourth positioning plate 8 and the fifth positioning plate 9. One positioning opening 10 is respectively arranged on the first positioning plate 5 and the fifth positioning plate 9, two positioning openings 10 are respectively arranged on the second positioning plate 6, the third positioning plate 7 and the fourth positioning plate 8, and each fourth positioning plate 8 is connected with one of the fourth positioning plates 8 which are adjacent along the circumferential direction of the rotating frame 2.
Be provided with baffle 11 and transmission post 12 in the revolving rack 2, transmission post 12 is the cavity cylinder, and transmission post 12 extends toward the revolving rack 2 outside from one side of baffle 11 along the axis of rotation of revolving rack 2, and the outer wall of transmission post 12 is provided with reinforcing plate 13, and reinforcing plate 13 connects the inner wall and the transmission post 12 of revolving rack 2, and polylith reinforcing plate 13 evenly arranges along the circumference of revolving rack.
Referring to fig. 1 and 3, the casing includes first casing 15 and second casing 16 of mutual detachably fixed connection, end cover 1 screwed connection in first casing 15, first casing 15 screwed connection in second casing 16, first casing 15 includes end plate 17, erection column 18, arc board 19 and first connecting portion 20, erection column 18 is the cylinder, erection column 18, arc board 19 is coaxial arrangement with the arc portion, erection column 18 extends to the inside of first casing 15 from the medial surface of end plate 17, end plate 17 is located the one end of arc board 19, first connecting portion 20 has been arranged to the both sides of arc board 19. The number of the first connection portions 20 is two, and the two first connection portions 20 are arranged opposite to each other in the radial direction of the arc plate 19.
The second housing 16 includes an arc portion 21 and a second connecting portion 22, the second connecting portion 22 is disposed on two sides of the arc portion 21, and the arc portion 21 is recessed inward of the end surface of the second connecting portion 22 toward the inner side of the second housing 16.
The number of the second connecting portions 22 is two, and the two second connecting portions are oppositely arranged along the radial direction of the arc portion. A plurality of hollow connecting columns are arranged in each first connecting part, and screws penetrate through the second connecting parts and penetrate into the connecting columns to be fixedly connected with the first shell 15 and the second shell 16 in a detachable mode.
The peristaltic pump 100 further comprises a motor 26, the motor 26 being inserted in the mounting post 18, the drive shaft of the motor 26 abutting against the drive post 12, and screws passing through the plate of the mounting post 18 and through the motor 26 to detachably fix the motor 26 and the first housing 15 to each other.
Preferably, the roller 3 comprises a wheel part and a shaft part, the shaft part is detachably and fixedly connected with the wheel part, the shaft part penetrates through the wheel part, the roller 3 is a split piece, and the shaft part is rotatably assembled on the rotating frame 2; alternatively, the roller 3 includes a wheel portion and a shaft portion, the shaft portion is fixedly connected to the wheel portion in an integrally molded manner, the roller 3 is an integrally molded piece, and the shaft portion is rotatably mounted to the rotating frame 2.
Referring to fig. 1 to 4, a transmission shaft of a motor drives the rotating frame 2 to rotate through a transmission column 12, and the roller 3 presses the conveying pipe to convey fluid. In each roller train and on first arc, connect a gyro wheel 3 and follow the arc angle A of the arc line of the projected centre of a circle of first plane of projection between two of another gyro wheel 3 that the circumferential distance of revolving rack 2 is nearest 22.5, therefore, the gyro wheel of each roller train evenly arranges in first arc, thereby make the gyro wheel of each roller train stagger each other, each gyro wheel extrudes a conveyer pipe 25 respectively, conveyer pipe 25 quantity of peristaltic pump 100 corresponds with the gyro wheel quantity of each roller train and arranges, and then under the condition that pulse flow appears in single conveyer pipe 25, pulse flow stack through different conveyer pipes 25 guarantees that the flow of fluid in the output tube is steady, guarantee peristaltic pump 100's job stabilization nature, moreover, peristaltic pump 100 need not to connect a plurality of motors in parallel, and reduce production cost, simplify peristaltic pump 100's structure.
Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A peristaltic device for a peristaltic pump, characterized in that:
the peristaltic device comprises a rotating frame and at least two groups of roller groups, each group of roller comprises at least two rollers, and the roller groups are assembled on the rotating frame;
the plane perpendicular to the rotation axis of the roller is a first projection plane, the projection direction parallel to the rotation axis of the roller is a first projection direction, the roller projection of each roller group on the first projection plane along the first projection direction is circular, the arc line connecting the center of the circle of the roller projection of each roller group on the first projection plane is a first arc, the first arc and the rotating frame are coaxially arranged, and the rollers of each roller group are uniformly arranged on the first arc.
2. A peristaltic device as claimed in claim 1, wherein:
the number of the roller groups is four.
3. A peristaltic device as claimed in claim 2, wherein:
the number of the rollers of each roller group is four.
4. A peristaltic device as claimed in claim 3, wherein:
the rotating frame is a cylinder, a positioning device is arranged on the outer wall of the rotating frame, and each roller is assembled on the positioning device.
5. A peristaltic device as claimed in claim 4, wherein:
the positioning device comprises a first positioning plate, a second positioning plate, a third positioning plate, a fourth positioning plate and a fifth positioning plate, wherein the first positioning plate, the second positioning plate, the third positioning plate, the fourth positioning plate and the fifth positioning plate are sequentially arranged along the rotary axis of the rotary frame.
6. A peristaltic device as claimed in claim 5, wherein:
one positioning opening is respectively arranged on the first positioning plate and the fifth positioning plate, and two positioning openings are respectively arranged on the second positioning plate, the third positioning plate and the fourth positioning plate.
7. A peristaltic device as claimed in claim 6, wherein:
each positioning opening is rotatably clamped with one roller.
8. A peristaltic device as claimed in claim 7, wherein:
a partition plate and a transmission column are arranged in the rotating frame, and the transmission column extends from one side of the partition plate to the outer side of the rotating frame along the rotating axis of the rotating frame. The outer wall of transmission post is provided with the reinforcing plate, the reinforcing plate connect the inner wall of revolving rack with the transmission post.
9. A peristaltic device as claimed in any one of claims 1 to 8, wherein:
the gyro wheel includes wheel portion and axial region, axial region detachably fixed connection in the wheel portion, the axial region rotatably assemble in the revolving rack.
10. A peristaltic device as claimed in any one of claims 1 to 8, wherein:
the gyro wheel includes wheel portion and axial region, axial region integrated into one piece ground fixed connection in the wheel portion, the axial region rotatably assemble in the revolving rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874895.7A CN111894838A (en) | 2020-08-26 | 2020-08-26 | Peristaltic device for peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874895.7A CN111894838A (en) | 2020-08-26 | 2020-08-26 | Peristaltic device for peristaltic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111894838A true CN111894838A (en) | 2020-11-06 |
Family
ID=73225695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010874895.7A Pending CN111894838A (en) | 2020-08-26 | 2020-08-26 | Peristaltic device for peristaltic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111894838A (en) |
-
2020
- 2020-08-26 CN CN202010874895.7A patent/CN111894838A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4747762A (en) | Fluid machine | |
| EP2628951B1 (en) | A gerotor device | |
| CN212360130U (en) | Peristaltic pump | |
| US3270681A (en) | Rotary fluid pressure device | |
| CN212774690U (en) | Peristaltic device for peristaltic pump | |
| CN111894838A (en) | Peristaltic device for peristaltic pump | |
| US4673343A (en) | Rotary vane pump | |
| CN205025736U (en) | Peristaltic pump | |
| CN111852831A (en) | Peristaltic pump | |
| US1922951A (en) | Rotary pump | |
| CN213016763U (en) | Shell for peristaltic pump | |
| US4008018A (en) | Rotary fluid displacement device having improved porting | |
| CN207879568U (en) | Birotor peristaltic pump | |
| US1853394A (en) | Rotary machine or pump | |
| CN209553463U (en) | A kind of hydraulic propeller of new A UV | |
| CN211202253U (en) | Infusion pump rotary peristaltic device | |
| GB764494A (en) | Improvements in or relating to rotary pumps | |
| CN112972886A (en) | Single-slider volumetric blood pump | |
| JPH10339279A (en) | Pump | |
| US2862451A (en) | Centrifugal pump | |
| FI62894B (en) | VAETSKERINGPUMP | |
| CN217055539U (en) | Peristaltic pump | |
| CN111550380A (en) | Integral type high-pressure oil pump | |
| KR101406286B1 (en) | Using an eccentric rotary piston pump | |
| CN215633673U (en) | Low-pulsation peristaltic pump structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |