CN201068852Y

CN201068852Y - Peristaltic pump

Info

Publication number: CN201068852Y
Application number: CNU2007201428996U
Authority: CN
Inventors: 孙成章
Original assignee: CHENGZHAN INDUSTRY Co Ltd
Current assignee: CHENGZHAN INDUSTRY Co Ltd
Priority date: 2007-06-08
Filing date: 2007-06-08
Publication date: 2008-06-04
Anticipated expiration: 2017-06-08

Abstract

The utility model relates to a peristaltic pump. Being improved, the all-in-one trench on a lid body of the pump is processed to have the following inner wall surfaces in turn, a pressing surface, a first gradual unfolding surface, a compressing part and a second gradual unfolding surface. The surfaces can be used for controling the flow of fluid in a delivery pipe together with a rolling wheel. For instance, the pressing surface can be used for pressing the delivery pipe to have the fluid in one end of the pipe to be drawn. The first gradual unfolding surface can be used for diastoling one end of the delivery pipe gradually to have the liquid in the pipe flow out gradually and slowly. The compressing part can be used for compressing the delivery pipe to prevent the liquid from flowing back, while the second gradual unfolding surface can be used for having the pipe diastole gradually, thereby enabling the remaining liquid in the pipe to flow out slowly and gradually, therefore the smoothness in fluid transferring and the stability in controlling the amount of the fluid flowed out are improved.

Description

Peristaltic pump

Technical field

The utility model is about a kind of pump, especially a kind ofly increases the peristaltic pump that smoothness on the FLUID TRANSPORTATION and fluid flow out the stability in the dosage control.

Background technique

Peristaltic pump is a kind of fluid delivery system, the mode that it is carried in pipe fully by fluid, avoided pump itself to contact the back produced pollution with fluid effectively, and its metering is easy to also accurately safeguard that therefore quilt more and more widely applies to the conveying of biochemistry, pharmaceutical products and corrosive fluid.

As shown in Figure 4, the peristaltic pump of prior art generally has a pedestal 40, a transport tube 50 and a lid 60, wherein give prominence on this pedestal 40 and be provided with a driving wheel group 41, this driving wheel group 41 is a disk body, can be subjected to a motor (not shown) driven rotary, but its periphery is equidistantly around being pivoted with several free rolling rollers 410; This transport tube 50 is with middle section half outer rim around driving wheel group 41, and pastes with a side and to be butted on the part roller 410; This lid 60 is covered on the pedestal 40, the surface of its relative pedestal 40 is recessed on and is formed with one and is semicircle arcuation groove 61, and this groove 61 can be ccontaining for transport tube 50, and the one end wall surface extends out the diastole face of forming E, distance between this diastole face E and the roller 410 is greater than the caliber of transport tube 50; And the wall outside this diastole face E then is pressed against the another side of transport tube 50 with respect to roller 410, and forms air-tight state with roller 410 mutual packing transport tube 50 bodys.

Thus, when motor drives driving wheel group 41 rotations, roller 410 can push transport tube 50 with groove 61 internal faces, make the fluid of transport tube 50 1 ends be drawn, and flow in the transport tube 50 between each adjacent rollers 410, also pass through transport tube 50 the other ends afterwards in the diastole of diastole face E, flow out by transport tube 50 the other ends.

Yet, in the peristaltic pump of prior art, make the fluid in the transport tube 50 flow out mode by its groove 61 diastole face E, often make transport tube 50, cause its internal flow to flow out transport tube 50 to vomit mode because of pressure reduces suddenly in the moment diastole of diastole face E place; In addition, after fluid flows out transport tube 50, will form vacuum state in the transport tube 50, the fluid after causing spraying produces and refluxes, thereby causes the having some setbacks property of fluid on carrying, and fluid flows out the unstability in the dosage control.

The model utility content

The purpose of this utility model is to provide a peristaltic pump, and it can be avoided the rapid ejection of fluid in its transport tube and reflux, and flows out the stability that dosage is controlled with smoothness and the fluid that increases on the FLUID TRANSPORTATION.

For reaching aforementioned purpose, roughly the peristaltic pump with prior art is identical on the peristaltic pump structure of the present utility model, it is that its lid groove is further improved, this peristaltic pump includes a pedestal, a transport tube and a lid, wherein, this pedestal is provided with a driving wheel group, and its periphery equidistantly can the free rolling roller around being pivoted with several;

One side of this transport tube is pasted and is butted on the part roller;

This lid is covered on the pedestal, and the surface of its relative pedestal is recessed on and is formed with a groove, and this groove is ccontaining for transport tube, and this groove has with respect to the internal face of roller is one-body molded in regular turn:

One press face, it has identical and specific radius of curvature, and this press face and roller cooperatively interact and clamping and seal the transport tube body;

One first gradually easypro face, it continues and is formed at an end of press face, has the radius of curvature that increases progressively gradually;

One clamping part, it is outstanding to take shape in first the other end that gradually relaxes the relative press face of face, and this clamping part and roller cooperatively interact and clamping transport tube body;

One second gradually easypro face, it continues and is formed at the gradually the other end of easypro face of clamping part relative first, also has the radius of curvature that increases progressively gradually, and the radius of curvature of its end is equal to or greater than the caliber of transport tube.

Aforesaid peristaltic pump, wherein, gradually the relax spacing of face end and counter roller of second of described lid groove equals the caliber of transport tube.

Aforesaid peristaltic pump, wherein, the second gradually easypro face end of described lid groove and the spacing of counter roller are greater than the caliber of transport tube.

Aforesaid peristaltic pump, wherein, the outstanding pedestal of described driving wheel group surface is provided with, and is a disk body, and the transmission shaft Joint of a centre and a motor.

Aforesaid peristaltic pump, wherein, described pedestal one side is installed with a button firmware; One side of lid is hubbed on the pedestal, and opposite side phase make-up firmware is provided with a button hook, and this button hook fastens mutually with the button firmware.

Aforesaid peristaltic pump, wherein, described driving wheel group has six rollers.

By means of this improved structure, when peristaltic pump of the present utility model drove the driving wheel group rotation with motor, roller and press face can push transport tube, make the fluid of transport tube one end be drawn, and flow in the transport tube between each adjacent rollers; Then, gradually relax cooperating between the face with first by roller, and make the diastole gradually of transport tube one end, make the fluid in the transport tube be able to flow out slowly, gradually; Afterwards, when roller turned to clamping part, transport tube can be compressed by clamping part once more and be semi-closed state, and like this then fluid aforementioned outflow will be difficult to reflux, and only can flow out toward the other end of transport tube; And after this, transport tube can diastole gradually makes the interior remaining fluid of transport tube flow out transport tube slowly, gradually by gradually easypro cooperating of face of roller and second again.

As from the foregoing, peristaltic pump of the present utility model can effectively avoid the transport tube internal flow to flow out transport tube because of pressure reduces suddenly in the mode that vomits; In addition, the fluid after also can avoiding spraying produces and refluxes, and the smoothness and the fluid that therefore can increase on the FLUID TRANSPORTATION flow out the stability that dosage is controlled.

Description of drawings

Fig. 1 is stereoscopic figure of the present utility model;

Fig. 2 is the front view of lid;

Fig. 3 is an actuator state schematic representation of the present utility model;

Fig. 4 is the actuator state schematic representation of prior art peristaltic pump.

The drawing reference numeral explanation:

10, pedestal 11, driving wheel group

110, roller 12, button firmware

20, transport tube 30, lid

31, button hook 32, groove

The gradually easypro face of A, press face B, first

The gradually easypro face of C, clamping part D, second

40, pedestal 41, driving wheel group

410, roller 50, transport tube

60, lid 61, groove

E, diastole face

Embodiment

Please referring to shown in Figure 1, peristaltic pump of the present utility model includes a pedestal 10, a transport tube 20 and a lid 30, wherein:

This pedestal 10 is provided with a motor (not shown), a driving wheel group 11 and a button firmware 12, wherein, these driving wheel group 11 outstanding pedestals 10 surfaces are provided with, it is a disk body, centre and motor drive shaft Joint and can be subjected to the motor driven rotary, but its periphery is equidistantly around being pivoted with free rolling six rollers 110; This button firmware 12 is fixedly arranged on a side on the pedestal 10.

This transport tube 20 is positioned on the pedestal 10, with middle section half outer rim around driving wheel group 11, and pastes with a side and to be butted on the part roller 110; Form runner and have a thickness of pipe in this transport tube 20.

This lid 30 is hubbed on the pedestal 10 with a side, and opposite side corresponds to button firmware 12 and is provided with a button hook 31, and this button hook 31 can fasten mutually with button firmware 12, makes lid 30 relative pedestals 10 location; This lid 30 is placed on the pedestal 10, and the surface of its relative pedestal 10 is recessed on and is formed with a groove 32, please cooperate referring to Fig. 2 and shown in Figure 3, and this groove 32 can be ccontaining for transport tube 20, and this groove 32 has with respect to the internal face of roller 110 is one-body molded in regular turn:

One press face A, it has identical and specific radius of curvature, and the spacing of itself and counter roller 110 is equal to or less than transport tube 20 thickness of pipe, can cooperatively interact and clamping transport tube 20 bodys with counter roller 110, makes transport tube 20 form closed states;

The one first face B that gradually relaxes, it continues and is formed at the end of press face A, has the radius of curvature that increases progressively gradually, and the spacing of itself and counter roller 110 can make transport tube 20 diastole gradually progressively greater than transport tube 20 thickness of pipe;

One clamping part C, it is outstanding to take shape in first the other end that gradually relaxes the relative press face A of face B, and the spacing of itself and counter roller 110 is slightly larger than transport tube 20 thickness of pipe, can cooperatively interact and clamping transport tube 20 bodys with counter roller 110, makes transport tube 20 form semi-closed states;

One second gradually easypro face D, it continues and is formed at the gradually the other end of easypro face B of clamping part C relative first, also has the radius of curvature that increases progressively gradually, and the spacing of itself and counter roller 110 is progressively greater than transport tube 20 thickness of pipe, can make transport tube 20 diastole gradually, the spacing of its end and counter roller 110 can be equal to or greater than the caliber of transport tube 20.

Please cooperate Fig. 2 referring to shown in Figure 3, when peristaltic pump of the present utility model drives driving wheel group 11 rotations with motor, roller 110 can push transport tube 20 with press face A, makes the fluid of transport tube 20 1 ends be drawn, and flows in the transport tube 20 between each adjacent rollers 110; Then, gradually relax cooperating between the face B with first by roller 110, and make the diastole gradually of transport tube 20 1 ends, make the fluid in the transport tube 20 be able to flow out slowly, gradually; Afterwards, when roller 110 turned to clamping part C, transport tube 20 can be compressed by clamping part C once more and be semi-closed state, and like this then fluid aforementioned outflow will be difficult to reflux, and only can flow out toward the other end of transport tube 20; And after this, transport tube 20 can relend and help roller 110 and second and gradually relax cooperating and diastole gradually of face D, make transport tube 20 interior remaining fluids flow out transport tube 20 slowly, gradually, thereby the smoothness and the fluid that increase on the FLUID TRANSPORTATION flow out the stability that dosage is controlled.

Claims

1. peristaltic pump, it includes a pedestal, a transport tube and a lid, it is characterized in that:

This pedestal is provided with a driving wheel group, and its periphery equidistantly can the free rolling roller around being pivoted with several;

One side of this transport tube is pasted and is butted on the part roller;

One press face, it has identical radius of curvature, and this press face and roller cooperatively interact and clamping and seal the transport tube body;

One second gradually easypro face, it continues and is formed at the gradually the other end of easypro face of clamping part relative first, has the radius of curvature that increases progressively gradually.

2. peristaltic pump as claimed in claim 1 is characterized in that: gradually the relax spacing of face end and counter roller of second of described lid groove equals the caliber of transport tube.

3. peristaltic pump as claimed in claim 1 is characterized in that: the second gradually easypro face end of described lid groove and the spacing of counter roller, and greater than the caliber of transport tube.

4. as claim 1 or 2 or 3 described peristaltic pumps, it is characterized in that: the outstanding pedestal of described driving wheel group surface is provided with, and is a disk body, and the transmission shaft Joint of a centre and a motor.

5. as claim 1 or 2 or 3 described peristaltic pumps, it is characterized in that: described pedestal one side is installed with a button firmware; One side of lid is hubbed on the pedestal, and opposite side phase make-up firmware is provided with a button hook, and this button hook fastens mutually with the button firmware.

6. as claim 1 or 2 or 3 described peristaltic pumps, it is characterized in that: described driving wheel group has six rollers.