CN203476665U - Peristaltic pump head - Google Patents
Peristaltic pump head Download PDFInfo
- Publication number
- CN203476665U CN203476665U CN201320550182.0U CN201320550182U CN203476665U CN 203476665 U CN203476665 U CN 203476665U CN 201320550182 U CN201320550182 U CN 201320550182U CN 203476665 U CN203476665 U CN 203476665U
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- China
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- elastic hose
- fixed
- base
- peristaltic pump
- eccentric
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Abstract
The utility model discloses a peristaltic pump head which comprises a motor, a base, a shell, a fixing mechanism of an elastic hose, two check valves, an eccentric wheel disc and one or two or a plurality of eccentric wheels. The shell is fixed onto the base, the motor is fixed onto the shell, a motor shaft extends to the front end of the shell, the eccentric wheel disc is fixed onto the motor shaft, and the eccentric wheels are eccentrically rotatably fixed to the front end of the eccentric wheel disc; the clamping fixing mechanism of the elastic hose is fixed to the front end of the base, the two check valves with consistent opening directions are mounted on the elastic hose at intervals, and the elastic hose is straightened and fixedly clamped onto the clamping fixing mechanism of the elastic hose by the aid of the two check valves; when mounted and then positioned at the locations closest to the base, the eccentric wheels are exactly squeezed on the elastic hose. The peristaltic pump head has the advantages that the decaying speed of a flow rate of liquid delivered by a peristaltic pump with the peristaltic pump head can be greatly reduced, accordingly, the liquid delivery uniformity, the delivery precision of the peristaltic pump and the stability of the linearity of the peristaltic pump can be improved, and the service life of the elastic hose can be greatly prolonged.
Description
Technical field
The utility model relates to a kind of pump head that distributes the peristaltic pump of carrying for fluid.
Background technique
Peristaltic pump is mainly used in the distribution of fluid and carries, and conventionally uses in flowrate measuring tool, medical apparatus, chemical industry, pharmaceutical industry.It is comprised of pump head, one, two or many elastic hoses and drive unit.Pump head is mainly comprised of one, two or more card, rotary roller, supporting part and flexible pipe fixed mechanism.Peristaltic pump is by the rotary roller of driver drives pump head inside, each roller overvoltage on rotary roller also continues to push the elastic hose between the interior card of pump head and roller interval time very shortly, make liquid be transported to another side from one side of elastic hose, roller on rotary roller is more, fluid flow is more even, and the Ka Guan mechanism in pump head prevents that elastic hose from moving in pump head.Owing to will guaranteeing the sealing of peristaltic pump, elastic hose must overvoltage extruding, this infringement that elastic hose is caused very large (due to the larger elastic hose of extruding force suffered infringement larger).Because roller is rotated in the forward movement with wheel disc, when extruding elastic hose and between elastic hose, produce frictional force, this frictional force acts on elastic hose, elastic hose is caused to secondary damage, extruding force is larger, and the frictional force producing is larger, and the infringement that elastic hose is subject to is larger.Above reason all causes elastic hose very fast tired, follow the string, and distortion is fast, and cracky.And the elasticity variation along with elastic hose, being transferred fluid flow diminishes gradually, the fatigue of elastic hose is faster, be transferred the faster of fluid flow decay, so existing peristaltic pump ubiquity uninterrupted is decayed soon in time, elastic hose short problem in working life, for addressing these problems, people use superelevation elastic hose, but it still cannot really solve fluid flow decay and the flexible pipe short problem in working life of being transferred.
Summary of the invention
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, and a kind of Peristaltic pump head is provided, and uses the peristaltic pump of this pump head, has greatly slowed down and has been transferred the rate of decay of fluid flow, the working life of greatly having improved elastic hose.
For achieving the above object, technical solution of the present utility model is: a kind of Peristaltic pump head, and it comprises the fixed mechanism of motor, base, shell, elastic hose, two one-way valves, eccentric wheel disc and one, two or more eccentric wheels; Shell is fixed on base, motor is fixed on shell, motor-shaft extending is to the front end of shell, the central axle sleeve of eccentric wheel back-end disk is fixed on motor shaft, eccentric wheel disc front end bias is fixed with one, two or more eccentric shaft, and one, two or more eccentric wheel are rotatably installed in respectively on eccentric shaft; The front end of base is fixed with the mechanism that connects and fixes of elastic hose, and two one-way valves that opening direction is consistent of span are installed on elastic hose, and elastic hose is straightened and is fixed on the connecting and fixing in mechanism of elastic hose by two one-way valves; After installing, eccentric wheel is just in time squeezed on elastic hose while being positioned at the immediate position of base.
The mechanism that connects and fixes of elastic hose described above is the fixed plate that there is respectively relative buckling groove at two ends, upper end, and fixed plate is fixed on the front end of base, and elastic hose is straightened and is fixed on fixed plate by being connected to two one-way valves in buckling groove.
The mechanism that connects and fixes of elastic hose described above is the fixed block that there is respectively buckling groove at two ends, upper end, and fixed block is fixed on the front end of base, and elastic hose is straightened and is fixed on fixed block by being connected to two one-way valves in buckling groove.
The utility model also comprises the elevation and subsidence regulating device that connects and fixes mechanism of elastic hose, and this elevation and subsidence regulating device comprises that lower end is leading screw, a plurality of double-screw bolt and the spring that unthreaded hole, upper end are screw thread; The central position corresponding with connecting and fixing mechanism at base has unthreaded hole and tapped blind hole; Around the base of unthreaded hole and tapped blind hole with connect and fix on the same circumference of mechanism and evenly have a plurality of screws and light blind hole; Leading screw is through in the unthreaded hole of base, upper end is threaded in the tapped blind hole that connects and fixes mechanism; Each double-screw bolt is separately fixed in the screw of base, upper end is through in light blind hole, is installed with spring on double-screw bolt.Like this, as long as rotating threaded shaft just can drive and connect and fix mechanism's lifting, the extruding degree with eccentric adjustment wheel extruding elastic hose, reaches the traffic requirement that is transferred liquid, uses convenient.
Eccentric wheel described above is the overcoat of capacity eccentric bearing, the inner sleeve that eccentric shaft is capacity eccentric bearing.
Because the utility model is provided with two one-way valves that opening direction is consistent on elastic hose, liquid can only flow to the other end from one end of elastic hose, can not reflux, so, eccentric wheel squeezing tube needn't overvoltage, also needn't within one week, adopt a plurality of eccentric wheels to make it the lasting time lag of pushing very short, so the utility model only adopts an eccentric wheel.Because eccentric wheel can very littlely can not cause liquid backflow to the extruding force of elastic hose yet, can make thus elastic hose be operated in non-tired squeezed state, can improve greatly the working life of elastic hose; Because elastic hose maintains the original state, by fatigue, do not pushed, so almost not decay of flow.
In a word, the peristaltic pump that uses the utility model pump head, has greatly slowed down and has been transferred the rate of decay of fluid flow, has improved the uniformity that liquid is carried, the transmission precision of peristaltic pump and the stability of the linearity have been improved, the working life of having improved greatly elastic hose.It is simple in structure, and cost is relatively low.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is plan view of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As depicted in figs. 1 and 2, the present embodiment comprises the fixed mechanism of motor 2, base 13, shell 3, elastic hose, the elevation and subsidence regulating device that connects and fixes mechanism of elastic hose, two one-way valves 8, eccentric wheel disc 4 and eccentric wheels 6.Shell 3 is fixed on base 13, motor 2 is fixed on shell 3, and motor shaft 5 reaches the front end of shell 3, and the central axle sleeve of eccentric wheel disc 4 rear ends is fixed on motor shaft 5, eccentric wheel disc 4 front end bias are fixed with an eccentric shaft, and eccentric wheel 6 is rotatably installed on eccentric shaft.The front end of base 13 is fixed with the mechanism that connects and fixes of elastic hose, and the mechanism that connects and fixes of elastic hose is the fixed block 9 that there is respectively buckling groove 15 at two ends, upper end, and fixed block 9 is fixed on the front end of base 13.The consistent one-way valve 8 of two opening directions of span is installed on elastic hose 1, and elastic hose 1 is straightened and is fixed on fixed block 9 by being connected to two one-way valves 8 in buckling groove 15.After installing, eccentric wheel 6 is just in time squeezed on elastic hose 1 while being positioned at base 13 immediate position.The elevation and subsidence regulating device that connects and fixes mechanism of elastic hose comprises that lower end is leading screw 12, a plurality of supporting post that unthreaded hole, upper end are screw thread: double-screw bolt 11 and spring 10; At base 13 and the corresponding central position of fixed block 9, have unthreaded hole and tapped blind hole; On the base 13 of unthreaded hole and tapped blind hole and the same circumference of fixed block 9, evenly have a plurality of screws and light blind hole; Leading screw 12 is through in the unthreaded hole of base 13, upper end is threaded in the tapped blind hole of fixed block 9; Each double-screw bolt 11 is separately fixed in the screw of base 13, upper end is through in light blind hole, is installed with spring 10 on double-screw bolt 11.
Embodiment's described above eccentric wheel also can arrange as required two, three, four, five, six etc. a plurality of, by the eccentric shaft bias of equivalent amount, be arranged on eccentric wheel disc.
Above-described embodiment can not used the controlling device that connects and fixes mechanism of elastic hose as required yet, but the fixed mechanism of elastic hose is directly fixed on to base front end.
The the connecting and fixing mechanism and also can adopt as required two ends, upper end to have respectively the fixed plate of relative buckling groove of the elastic hose of above-described embodiment, fixed plate is fixed on the front end of base, and elastic hose is straightened and is fixed on fixed plate by being connected to two one-way valves in buckling groove.
Above-described embodiment is only preferred and exemplary; those skilled in the art can also be according to the description of this patent; other equivalent technologies of choice for use: as the controlling device that connects and fixes mechanism of the elastic hose of the fixed mechanism of the elastic hose of other structure or other structure, these are all in the protection domain of this patent.
Claims (7)
1. a Peristaltic pump head, is characterized in that: it comprises the fixed mechanism of motor, base, shell, elastic hose, two one-way valves, eccentric wheel disc and one, two or more eccentric wheels; Shell is fixed on base, motor is fixed on shell, motor-shaft extending is to the front end of shell, the central axle sleeve of eccentric wheel back-end disk is fixed on motor shaft, eccentric wheel disc front end bias is fixed with one, two or more eccentric shaft, and one, two or more eccentric wheel are rotatably installed in respectively on eccentric shaft; The front end of base is fixed with the mechanism that connects and fixes of elastic hose, and two one-way valves that opening direction is consistent of span are installed on elastic hose, and elastic hose is straightened and is fixed on the connecting and fixing in mechanism of elastic hose by two one-way valves; After installing, eccentric wheel is just in time squeezed on elastic hose while being positioned at the immediate position of base.
2. Peristaltic pump head according to claim 1, it is characterized in that: the mechanism that connects and fixes of described elastic hose is the fixed block that there is respectively buckling groove at two ends, upper end, fixed block is fixed on the front end of base, and elastic hose is straightened and is fixed on fixed plate by being connected to two one-way valves in buckling groove.
3. Peristaltic pump head according to claim 1 and 2, is characterized in that: it also comprises the elevation and subsidence regulating device that connects and fixes mechanism of elastic hose, and this elevation and subsidence regulating device comprises that lower end is leading screw, a plurality of double-screw bolt and the spring that unthreaded hole, upper end are screw thread; The central position corresponding with connecting and fixing mechanism at base has unthreaded hole and tapped blind hole; Around the base of unthreaded hole and tapped blind hole with connect and fix on the same circumference of mechanism and evenly have a plurality of screws and light blind hole; Leading screw is through in the unthreaded hole of base, upper end is threaded in the tapped blind hole that connects and fixes mechanism; Each double-screw bolt is separately fixed in the screw of base, upper end is through in light blind hole, is installed with spring on double-screw bolt.
4. Peristaltic pump head according to claim 3, is characterized in that: the overcoat that described eccentric wheel is capacity eccentric bearing, the inner sleeve that eccentric shaft is capacity eccentric bearing.
5. Peristaltic pump head according to claim 1 and 2, is characterized in that: the overcoat that described eccentric wheel is capacity eccentric bearing, the inner sleeve that eccentric shaft is capacity eccentric bearing.
6. Peristaltic pump head according to claim 1, it is characterized in that: the mechanism that connects and fixes of described elastic hose is the fixed plate that there is respectively relative buckling groove at two ends, upper end, fixed plate is fixed on the front end of base, and elastic hose is straightened and is fixed on fixed plate by being connected to two one-way valves in buckling groove.
7. Peristaltic pump head according to claim 6, is characterized in that: the overcoat that described eccentric wheel is capacity eccentric bearing, the inner sleeve that eccentric shaft is capacity eccentric bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550182.0U CN203476665U (en) | 2013-09-06 | 2013-09-06 | Peristaltic pump head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550182.0U CN203476665U (en) | 2013-09-06 | 2013-09-06 | Peristaltic pump head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476665U true CN203476665U (en) | 2014-03-12 |
Family
ID=50225005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550182.0U Expired - Fee Related CN203476665U (en) | 2013-09-06 | 2013-09-06 | Peristaltic pump head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476665U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269504A (en) * | 2017-08-16 | 2017-10-20 | 保定准择恒流泵制造有限公司 | Peristaltic pump flow rate adjusting method and the peristaltic pump based on this method |
| WO2020208076A1 (en) * | 2019-04-12 | 2020-10-15 | Fresenius Medical Care Deutschland Gmbh | Roller pump having holding portions for fixing a pump tube segment |
| CN113390209A (en) * | 2021-07-07 | 2021-09-14 | 内蒙古大唐国际克什克腾煤制天然气有限责任公司 | Device and method for supplementing refrigerant to refrigerating system without pressurizing equipment in winter |
-
2013
- 2013-09-06 CN CN201320550182.0U patent/CN203476665U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269504A (en) * | 2017-08-16 | 2017-10-20 | 保定准择恒流泵制造有限公司 | Peristaltic pump flow rate adjusting method and the peristaltic pump based on this method |
| WO2020208076A1 (en) * | 2019-04-12 | 2020-10-15 | Fresenius Medical Care Deutschland Gmbh | Roller pump having holding portions for fixing a pump tube segment |
| CN113390209A (en) * | 2021-07-07 | 2021-09-14 | 内蒙古大唐国际克什克腾煤制天然气有限责任公司 | Device and method for supplementing refrigerant to refrigerating system without pressurizing equipment in winter |
| CN113390209B (en) * | 2021-07-07 | 2022-06-24 | 内蒙古大唐国际克什克腾煤制天然气有限责任公司 | Device and method for supplementing refrigerant to refrigerating system without pressurizing equipment in winter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |