CN203879718U - Peristaltic pump - Google Patents
Peristaltic pump Download PDFInfo
- Publication number
- CN203879718U CN203879718U CN201420324952.4U CN201420324952U CN203879718U CN 203879718 U CN203879718 U CN 203879718U CN 201420324952 U CN201420324952 U CN 201420324952U CN 203879718 U CN203879718 U CN 203879718U
- Authority
- CN
- China
- Prior art keywords
- pump
- idler wheel
- shaft
- peristaltic pump
- motor
- 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.)
- Expired - Lifetime
Links
- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 26
- 210000004369 blood Anatomy 0.000 abstract description 7
- 239000008280 blood Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 210000000601 blood cell Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019544 rolls Nutrition 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a peristaltic pump which comprises a pump body, a pump base, an idler wheel and a motor. The pump body is fixed to the pump base and connected with a motor shaft of the motor, an idler wheel frame rotary shaft is installed in the pump body, an idler wheel frame can swing along with the idler wheel frame rotary shaft, and an idler wheel shaft is installed on the idler wheel frame. A spring is arranged between the pump body and the idler wheel frame, and a blood pipeline is fixed into the gap between the idler wheel and the pump base. According to the peristaltic pump, the idler wheel frame and the spring structure are additionally arranged, a fixed idler wheel shaft is changed to be the floating shaft, and when the diameter of the blood pipeline is increased, the gap between the pump body and the idler wheel frame is adjusted through compressing the spring, so that the gap between the idler wheel and the pump base is adjusted, and the purposes that the peristaltic pump is suitable for various specifications of blood pipelines, and the service life of the peristaltic pump is prolonged are achieved.
Description
Technical field
The utility model belongs to field of medical, relates to peristaltic pump, is particularly applicable to the peristaltic pump of blood cell separator.
Background technique
Use blood cell separator to carry out in blood collection procedure human body, need to realize blood and collect in separator and separate by blood vessel by being connected to the transducer potector of human body with peristaltic pump.Peristaltic pump directly affects blood cell separator working life working life.Its structure of existing peristaltic pump is referring to Fig. 1 and Fig. 2, the pump housing 7 is fixed on pump seat 5, and roller shaft 9 is arranged in the pump housing 7, and motor 4 drives the pump housing 7 by motor shaft 2, roller shaft 9 moves with the pump housing 7 and drives roller 3 to move, and transducer potector 1 is fixed in the gap of roller 3 and pump seat 5.The radial position of this peristaltic pump pump housing 7 and roller shaft 9 is fixed, and the pump housing 7 drives rotation roller 3 to rotate squeezes blood pipeline 11 and reach the effect of blood drawing around roller shaft 9 under motor shaft 2 effect.Because the radial position of the pump housing 7 and roller shaft 9 is fixed, roller 3 is certain with pump seat 7 gaps, makes peristaltic pump good to the pipeline squeezing effect of certain diameter.But transducer potector is subject to the impact of multiple factor in manufacture process, it is constant that pipeline diameter is difficult to keep, and the product of same producer different batches or different manufacturers exists difference in various degree, comparatively serious to the damage of peristaltic pump roller when pipeline diameter is larger.
Summary of the invention
The technical problems to be solved in the utility model is that the pump housing and the roller shaft radial position of peristaltic pump fixed, roller shaft is fixed in pump housing turning radius, transducer potector diameter heterogeneity affects the working life of peristaltic pump, and the peristaltic pump that a kind of roller shaft is variable in pump housing turning radius, can adapt to multiple specification transducer potectors is provided.
The technological scheme of the utility model technical solution problem is: peristaltic pump, comprise the pump housing, pump seat, roller and motor, the pump housing is fixed on pump seat, the pump housing is connected with the motor shaft of motor, turning rolls rotating shaft is installed in the described pump housing, and turning rolls can be with turning rolls shaft swing, and roller shaft is arranged on turning rolls, between the pump housing and turning rolls, be provided with spring, transducer potector is fixed on the gap of roller and pump seat.
Described transducer potector diameter 4.2mm-5.5mm.
The utility model peristaltic pump increases turning rolls and spring structure, changes unsteady axle into by the roller shaft of fixing, and regulates the gap between the pump housing and turning rolls in the time of transducer potector enlarged diameter by Compress Spring, thereby regulates the gap of roller and pump seat.
Brief description of the drawings
Fig. 1 prior art peristaltic pump structure schematic diagram;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 the utility model peristaltic pump structure schematic diagram;
Fig. 4 is A-A sectional view in Fig. 3;
In figure, 1 connecting pin, 2 motor shafts, 3 rollers, 4 motors, 5 pump seats, 6 springs, 7 pump housings, 8 turning rolls rotating shafts, 9 roller shafts, 10 turning rollss, 11 transducer potectors.
Embodiment
As shown in Figure 3 and Figure 4, a kind of peristaltic pump, comprise the pump housing 7, pump seat 5, roller 3 and motor 4, the pump housing 7 is fixed on pump seat 5, and the pump housing 7 is connected by connecting pin 1 with the motor shaft 2 of motor 4, in the described pump housing 7, turning rolls rotating shaft 8 is installed, turning rolls 10 can swing with turning rolls rotating shaft 8, roller shaft 9 is arranged on turning rolls 10, between the pump housing 7 and turning rolls 10, is provided with spring 6, and transducer potector 11 is fixed on the gap of roller 3 and pump seat 5.When use, the pump housing 7 rotates around motor shaft 2, and roller shaft 9 turning radius just become unsteady, and roller 3 is realized with regard to the decrement by spring 6 with pump seat 5 gap adjustment.Just increase when transducer potector 11 wall thickness increase spring 6 decrements, just reduce otherwise transducer potector 11 wall thickness reduce spring 6 decrements.So just realize same peristaltic pump applicable to multiple pipeline, also improve peristaltic pump working life.
Claims (2)
1. peristaltic pump, comprise the pump housing, pump seat, roller and motor, the pump housing is fixed on pump seat, the pump housing is connected with the motor shaft of motor, it is characterized in that: turning rolls rotating shaft is installed in the described pump housing, and turning rolls can be with turning rolls shaft swing, and roller shaft is arranged on turning rolls, between the pump housing and turning rolls, be provided with spring, transducer potector is fixed on the gap of roller and pump seat.
2. peristaltic pump according to claim 1, is characterized in that: described transducer potector diameter 4.2mm-5.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324952.4U CN203879718U (en) | 2014-06-18 | 2014-06-18 | Peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324952.4U CN203879718U (en) | 2014-06-18 | 2014-06-18 | Peristaltic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879718U true CN203879718U (en) | 2014-10-15 |
Family
ID=51680221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420324952.4U Expired - Lifetime CN203879718U (en) | 2014-06-18 | 2014-06-18 | Peristaltic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313914A (en) * | 2017-08-25 | 2017-11-03 | 哈尔滨工业大学（威海） | A kind of contactless circulating pump |
| CN108634824A (en) * | 2018-03-26 | 2018-10-12 | 珠海优特智厨科技有限公司 | Fluid drawing mechanism |
| CN108969819A (en) * | 2017-05-31 | 2018-12-11 | 旭化成医疗株式会社 | Tube pump and apparatus for purifying blood |
-
2014
- 2014-06-18 CN CN201420324952.4U patent/CN203879718U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969819A (en) * | 2017-05-31 | 2018-12-11 | 旭化成医疗株式会社 | Tube pump and apparatus for purifying blood |
| CN107313914A (en) * | 2017-08-25 | 2017-11-03 | 哈尔滨工业大学（威海） | A kind of contactless circulating pump |
| CN108634824A (en) * | 2018-03-26 | 2018-10-12 | 珠海优特智厨科技有限公司 | Fluid drawing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |
|
| CX01 | Expiry of patent term |