CN110925176A - Double-roller rotary high-precision peristaltic pump - Google Patents
Double-roller rotary high-precision peristaltic pump Download PDFInfo
- Publication number
- CN110925176A CN110925176A CN201911368878.XA CN201911368878A CN110925176A CN 110925176 A CN110925176 A CN 110925176A CN 201911368878 A CN201911368878 A CN 201911368878A CN 110925176 A CN110925176 A CN 110925176A
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- China
- Prior art keywords
- roller
- assembly
- double
- opening
- closing
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- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 38
- 230000000712 assembly Effects 0.000 claims abstract description 22
- 238000000429 assembly Methods 0.000 claims abstract description 22
- 230000009977 dual effect Effects 0.000 claims 2
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 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
- F04B43/1253—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
- F04B43/1261—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 rollers being placed at the outside of the tubular flexible member
Abstract
The invention discloses a double-roller rotary high-precision peristaltic pump, which comprises two or more groups of double roller assemblies, a pump body assembly, a rotating assembly and roller opening and closing assemblies, wherein the rotating assembly is arranged on the pump body assembly, and the two or more groups of double roller assemblies are arranged on the rotating assembly and rotate along with the rotating assembly; the roller opening and closing assembly is installed on the pump body assembly and controls the opening and closing of the double-roller assembly. The invention has the advantages of simple and compact structure, high precision, low abrasion, easy operation and the like.
Description
Technical Field
The invention mainly relates to the technical field of peristaltic pumps, in particular to a double-roller rotary high-precision peristaltic pump.
Background
Peristaltic pumps move forward as a finger squeezes a fluid filled hose, sliding the fluid in the tube forward. Peristaltic pumps are also this principle, with the fingers being replaced by rollers. The fluid is pumped by alternately squeezing and releasing the elastic delivery hose of the pump. Just like squeezing the hose with two fingers, as the fingers move, negative pressure is formed in the hose, and the liquid flows along with the negative pressure. The peristaltic pump has the advantages of no pollution and good precision, and is widely applied to various industries, including the chemical industry, the pharmaceutical industry, the food filling industry and the like.
In the prior art, peristaltic pumps are classified into linear peristaltic pumps and rotary peristaltic pumps. The existing peristaltic pump has the following defects:
1. the hose of rotation type peristaltic pump centers on wheel components winding in gyro wheel one side, then compresses tightly the hose through the pump cover, because the hose does not have complete fixed position in the pump body, drives the hose dislocation removal easily when the gyro wheel is rotatory, produces the precision error, need open the pump cover when trading the pipe simultaneously, inconvenient operation under clean laminar flow environment. Moreover, the hose is susceptible to wear with this arrangement.
2. The linear peristaltic pump has two forms at present, one is a single-roller linear peristaltic pump, and the problems of inconvenient operation and hose abrasion also exist; the other is a double-roller linear peristaltic pump, although a series of problems such as hose abrasion, filling precision, convenience in operation and the like are solved to a certain extent, the self structure is relatively complex, a lifting device, a power and pressure pipe device, a power and backflow prevention device are required, and the loading capacity of the linear pump is not too large due to the stroke limitation of the linear structure.
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 double-roller rotary high-precision peristaltic pump which is simple and compact in structure, high in precision, low in abrasion and easy to operate.
In order to solve the technical problems, the invention adopts the following technical scheme:
a double-roller rotary high-precision peristaltic pump comprises two or more groups of double roller assemblies, a pump body assembly, a rotating assembly and roller opening and closing assemblies, wherein the rotating assembly is arranged on the pump body assembly, and the two or more groups of double roller assemblies are arranged on the rotating assembly and rotate along with the rotating assembly; the roller opening and closing assembly is installed on the pump body assembly and controls the opening and closing of the double-roller assembly.
As a further improvement of the invention: the roller opening and closing assembly adopts a swinging opening and closing mode or a translation opening and closing mode.
As a further improvement of the invention: the roller opening and closing assembly adopts a cam to control the opening and closing mode of the roller, or adopts a motor direct driving mode or adopts a cylinder direct driving mode.
As a further improvement of the invention: the roller opening and closing assembly comprises an opening and closing cam, a cam follower and a mounting swing rod, wherein the mounting swing rod is mounted on the opening and closing cam through the cam follower, and the cam follower and the mounting swing rod are driven to move along with the movement of the opening and closing cam, so that the movable roller group connected with the cam follower moves close to or away from the fixed roller group.
As a further improvement of the invention: each double-roller component comprises a fixed roller group and a movable roller group which are oppositely arranged, a first roller is installed on the fixed roller group through a roller installation shaft, a second roller is installed on the movable roller group through an eccentric shaft, a working hose is placed between the first roller and the second roller, and the peristaltic metering function is completed through clamping or loosening of the first roller and the second roller.
As a further improvement of the invention: the movable roller group is connected with the roller opening and closing assembly and moves under the control of the roller opening and closing assembly to enable the movable roller group to move close to or far away from the fixed roller group.
As a further improvement of the invention: the pump body assembly comprises a pump body mounting column and a pump body mounting seat, the pump body mounting column is connected to the pump body mounting seat to form a frame structure, and a cavity used for mounting a driving unit in the rotating assembly is formed.
As a further improvement of the invention: the first roller and the second roller are the same in size.
As a further improvement of the invention: the auxiliary rolling wheel assembly also comprises a pair of oppositely arranged rolling wheels, and the working hose is arranged in the auxiliary rolling wheel assembly in a penetrating way.
As a further improvement of the invention: the two groups and more than two groups of double roller assemblies are kept at any time, and at least one group of double roller assemblies is in a state of closing and pressing the working hose.
Compared with the prior art, the invention has the advantages that:
1. the double-roller rotary high-precision peristaltic pump adopts two or more groups of double rollers, and at least one group of double rollers is kept in a state of closing and pressing a hose at any time, so that a backflow prevention device is omitted.
2. The double-roller rotary high-precision peristaltic pump adopts the double-roller pressing pipe without a fixed cover plate, so that the working hose is completely exposed, and the double-roller rotary high-precision peristaltic pump is sanitary, clean and convenient to replace. And further adopt two the same gyro wheels of size to press the pipe, reduce wearing and tearing.
3. According to the double-roller rotary high-precision peristaltic pump, the plurality of groups of double-roller assemblies are arranged on the rotary assembly and can rotate continuously, and the defect that the linear pump is not suitable for being overlarge in loading capacity is overcome.
4. According to the double-roller rotary high-precision peristaltic pump, the opening and closing assembly of the double rollers can adopt the cam to control the opening and closing of the rollers, and can also adopt power devices such as a motor and an air cylinder to control the opening and closing of the double rollers. The double-roller opening and closing assembly can adopt swinging opening and closing, translational opening and closing or other opening and closing modes. The opening and closing of the double rollers are used for effectively avoiding the pressure pipe assembly.
Drawings
Fig. 1 is a schematic view of the main structure of the pump of the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is an axial schematic view of the present invention.
Fig. 4 is a schematic structural view of the double-roller opening and closing assembly of the invention.
Fig. 5 is a schematic view of the present invention in operation.
Illustration of the drawings:
1. a pump body assembly; 2. a roller opening and closing assembly; 3. a rotating assembly; 4. a double roller assembly; 5. an auxiliary roller assembly; 6. a hose securing assembly; 7. a working hose; 8. a fluid; 11. a pump body mounting post; 12. a pump body mounting seat; 21. an opening and closing cam; 22. a cam follower; 23. installing a swing rod; 31. a rotating base; 32. a rotating electric machine; 41. a fixed roller group, 42, a movable roller group, 411, a first roller, 412 and a roller mounting shaft; 421. a second roller; 422. an eccentric shaft.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1-4, the double-roller rotary high-precision peristaltic pump of the present invention comprises two or more sets of double roller assemblies 4, a pump body assembly 1, a rotating assembly 3, a roller opening and closing assembly 2, and a hose fixing assembly 6, wherein the rotating assembly 3 is mounted on the pump body assembly 1 through a motor, and the two or more sets of double roller assemblies 4 are mounted on the rotating assembly 3 and can rotate along with the rotating assembly 3. The roller opening and closing assembly 2 is arranged on the pump body assembly 1 and controls the opening and closing of the double-roller assembly 4.
In the operation, the working hose 7 passes through the plurality of groups of double-roller assemblies 4, and two or more groups of double-roller assemblies 4 are adopted, so that at least one group of double-roller assemblies 4 can be kept in a state of closing and pressing the working hose 7 at any time, and a backflow prevention device in the traditional peristaltic pump structure is omitted. Moreover, the multiple groups of double-roller assemblies 4 are arranged on the rotating assembly 3, so that continuous rotation can be realized, and the defect that the linear pump is not suitable for overlarge loading capacity is overcome.
In the structure of the invention, the double-roller component 4 is used for controlling the working hose 7, so that a fixed cover plate is not arranged, the working hose 7 is in a completely exposed state, and the whole machine has the advantages of sanitation, cleanness and convenience in replacement.
In a specific application example, each double-roller assembly 4 includes a fixed roller set 41 and a movable roller set 42 which are oppositely arranged, a first roller 411 is installed on the fixed roller set 41 through a roller installation shaft 412, a second roller 421 is installed on the movable roller set 42 through an eccentric shaft 422, the working hose 7 is located between the first roller 411 and the second roller 421, and the peristaltic metering function is completed through clamping or releasing of the first roller 411 and the second roller 421. The movable roller group 42 is connected to the roller opening and closing assembly 2 and moves closer to or away from the fixed roller group 41 under the control of the roller opening and closing assembly 2.
Further, the first roller 411 and the second roller 421 have the same size, which not only can ensure the best clamping effect on the working hose 7, but also can reduce the abrasion on the working hose 7.
As a preferred embodiment, the present invention further comprises an auxiliary roller assembly 5, wherein the auxiliary roller assembly 5 also comprises a pair of rollers oppositely arranged, and a working hose 7 is inserted therein for auxiliary control when necessary or for performing necessary control in cooperation with the double roller assembly 4. For example, if the working hose 7 is a very soft flexible tube, which has no tension, and thus it automatically drops, the roller assembly 5 can be assisted in tensioning.
In the specific application example, the purpose of the roller opening and closing assembly 2 is to control the opening and closing of two opposite rollers in the double-roller assembly 4, and therefore, it is within the protection scope of the present invention as long as the requirement is met. For example, the roller can be opened and closed by swinging, translational opening and closing or other opening and closing modes, the opening and closing of the roller can be controlled by a cam, and the opening and closing of the double rollers can be controlled by power devices such as a motor, an air cylinder and the like.
In this example, the roller opening and closing assembly 2 adopts a cam control manner, that is, the roller opening and closing assembly 2 includes an opening and closing cam 21, a cam follower 22 and a mounting swing rod 23, the mounting swing rod 23 is mounted on the opening and closing cam 21 through the cam follower 22, and the cam follower 22 and the mounting swing rod 23 are driven to move along with the movement of the opening and closing cam 21, so that the movable roller set 42 connected with the cam moves close to or away from the fixed roller set 41.
In a specific application example, the rotating assembly 3 includes a rotating base 31 and a rotating motor 32, and the rotating base 31 is installed above the rotating motor 32 and is driven by the rotating motor 32 to rotate. More than two sets of double roller assemblies 4 are mounted on the rotary base 31.
In a specific application example, the pump body assembly 1 includes a pump body mounting post 11 and a pump body mounting seat 12, the pump body mounting post 11 is connected to the pump body mounting seat 12 to form a frame structure, and a cavity for mounting the rotating motor 32 in the rotating assembly 3 is formed.
Referring to fig. 5, the working hose 7 is wound around two or more sets of double roller assemblies 4, and the fluid 8 forms a quantitative metering effect on the working hose 7 according to the working period as the rotating assembly 3 rotates.
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 (10)
1. The double-roller rotary high-precision peristaltic pump is characterized by comprising two or more groups of double roller assemblies (4), a pump body assembly (1), a rotating assembly (3) and a roller opening and closing assembly (2), wherein the rotating assembly (3) is arranged on the pump body assembly (1), and the two or more groups of double roller assemblies (4) are arranged on the rotating assembly (3) and rotate along with the rotating assembly (3); the roller opening and closing assembly (2) is installed on the pump body assembly (1) and controls the opening and closing of the double roller assemblies (4).
2. The double-roller rotary high-precision peristaltic pump as claimed in claim 1, wherein said roller opening and closing assembly (2) is in a swinging opening and closing manner or a translation opening and closing manner.
3. The double-roller rotary high-precision peristaltic pump as claimed in claim 1, wherein the roller opening and closing assembly (2) is in a cam-controlled roller opening and closing manner, or in a motor direct driving manner, or in a cylinder direct driving manner.
4. The double-roller rotary high-precision peristaltic pump according to claim 3, wherein each double-roller assembly (4) comprises a fixed roller set (41) and a movable roller set (42) which are oppositely arranged, the fixed roller set (41) is provided with a first roller (411) through a roller mounting shaft (412), the movable roller set (42) is provided with a second roller (421) through an eccentric shaft (422), the movable roller set is positioned between the first roller (411) and the second roller (421) and used for placing the working hose (7), and the peristaltic metering function is completed through clamping or loosening of the first roller (411) and the second roller (421).
5. The double-roller rotary high-precision peristaltic pump as claimed in claim 4, wherein the movable roller set (42) is connected to the roller opening and closing assembly (2) and moves closer to or away from the fixed roller set (41) under the control of the roller opening and closing assembly (2).
6. The double-roller rotary high-precision peristaltic pump as claimed in any one of claims 4 to 5, wherein the roller opening and closing assembly (2) comprises an opening and closing cam (21), a cam follower (22) and a mounting swing rod (23), the mounting swing rod (23) is mounted on the opening and closing cam (21) through the cam follower (22), and the cam follower (22) and the mounting swing rod (23) are driven to move along with the movement of the opening and closing cam (21), so that the movable roller set (42) connected with the cam follower moves close to or away from the fixed roller set (41).
7. The dual roller rotary high precision peristaltic pump according to any one of claims 1 to 5, characterized in that said pump body assembly (1) comprises a pump body mounting post (11) and a pump body mounting seat (12), said pump body mounting post (11) being attached to the pump body mounting seat (12) forming a frame-like structure and forming a cavity for mounting a drive unit in the rotating assembly (3).
8. A dual roller rotary high precision peristaltic pump according to any of claims 1 to 5, wherein said first roller (411) and said second roller (421) are of the same size.
9. The double-roller rotary high-precision peristaltic pump as claimed in any one of claims 1 to 5, further comprising an auxiliary roller assembly (5), wherein the auxiliary roller assembly (5) also comprises a pair of rollers which are oppositely arranged, and the working hose (7) is penetrated therein.
10. A double roller rotary high precision peristaltic pump according to any one of claims 1 to 5, characterized in that said two and more sets of double roller assemblies (4) are maintained in a state in which at least one set of double roller assemblies (4) is in a state of being closed to press the working hose (7) at any time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911368878.XA CN110925176B (en) | 2019-12-26 | Double-roller rotary high-precision peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911368878.XA CN110925176B (en) | 2019-12-26 | Double-roller rotary high-precision peristaltic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110925176A true CN110925176A (en) | 2020-03-27 |
| CN110925176B CN110925176B (en) | 2024-04-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0786596A1 (en) * | 1996-01-26 | 1997-07-30 | Institut Francais De Recherche Pour L'exploitation De La Mer (Ifremer) | Peristaltic pump |
| EP2886866A1 (en) * | 2013-12-09 | 2015-06-24 | Thomas Magnete GmbH | Dosing pump for conveying pasty media with high demands on hygiene and operational reliability |
| CN205089577U (en) * | 2015-09-18 | 2016-03-16 | 保定兰格恒流泵有限公司 | Two groups gyro wheel peristaltic pump |
| EP3168472A1 (en) * | 2015-11-12 | 2017-05-17 | Geolyth Mineral Technologie GmbH | Filling apparatus for mineral insulating foams |
| CN209083527U (en) * | 2018-09-30 | 2019-07-09 | 长沙执先智量科技股份有限公司 | A kind of double rollers pipe pressing device for peristaltic pump |
| CN211623677U (en) * | 2019-12-26 | 2020-10-02 | 长沙执先智量科技股份有限公司 | Double-roller rotary high-precision peristaltic pump |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0786596A1 (en) * | 1996-01-26 | 1997-07-30 | Institut Francais De Recherche Pour L'exploitation De La Mer (Ifremer) | Peristaltic pump |
| EP2886866A1 (en) * | 2013-12-09 | 2015-06-24 | Thomas Magnete GmbH | Dosing pump for conveying pasty media with high demands on hygiene and operational reliability |
| CN205089577U (en) * | 2015-09-18 | 2016-03-16 | 保定兰格恒流泵有限公司 | Two groups gyro wheel peristaltic pump |
| EP3168472A1 (en) * | 2015-11-12 | 2017-05-17 | Geolyth Mineral Technologie GmbH | Filling apparatus for mineral insulating foams |
| CN209083527U (en) * | 2018-09-30 | 2019-07-09 | 长沙执先智量科技股份有限公司 | A kind of double rollers pipe pressing device for peristaltic pump |
| CN211623677U (en) * | 2019-12-26 | 2020-10-02 | 长沙执先智量科技股份有限公司 | Double-roller rotary high-precision peristaltic pump |
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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 Applicant 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 Applicant before: CHANGSHA ZENITHSUN INTELLIGENCE QUANTITATIVE TECHNOLOGY Co.,Ltd. |
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| GR01 | Patent grant |