CN2303947Y - Double-flow-channel low-pulse high-precision separate wriggle-pump head - Google Patents

Abstract

The utility model provides a double-flow-channel low-pulse high-precision separate wriggle-pump head which, comprises a pump body which comprises an inlet and an outlet. The utility model is characterized in that a rotating body is arranged on the pump body, and a main shaft in the rotating body is connected with a driver; at least six rollers are positioned on the periphery of the main shaft; two pump covers of a guide track which comprises a containing guide pipe are matched with the pump body, and the guide track is arranged on the pump body. The utility model has the advantages of high flow, low pulse, high precision, reasonable structure, safe use and high reliability, and is used for separately loading quantitatively.

Description

Double flow channel hangs down pulse highi degree of accuracy packing Wriggling Pump Head

The utility model relates to a kind of Wriggling Pump Head, particularly be the low pulse highi degree of accuracy packing Wriggling Pump Head of a kind of double flow channel.

At present, the domestic peristaltic pump power that has is little, and stream time is short, and is only limited to the conduit that uses a kind of diameter, the roller quantity few (having only three) on the while solid of rotation, so pulse is big, is subjected to certain limitation on using scope.Peristaltic pump itself is natural to exist pulse, just having flashy flow velocity when roller leaves conduit reduces, little in this pulse feature influence of most of occasions, but in some occasion as measuring and during packing, this variability flow velocity can reduce the accuracy and the precision of process, and the volume of measurement preset time and packing is changed; Wriggling property can also cause splash and foaming in addition, overcome this phenomenon and have only the branch of increasing ETL estimated time of loading, could offset the influence of wriggling, must reduce manufacturing efficiency.

In view of above reason, the purpose of this utility model be for provide a kind of high flow capacity, low pulse, highi degree of accuracy, rational in infrastructure, safe in utilization, reliability is high, can be used for the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel of quantitative packing.

The purpose of this utility model is achieved in that the pump housing that contains import and outlet in the utility model, it is characterized in that solid of rotation is arranged on the pump housing, the main shaft that is connected with driver is arranged in the solid of rotation, be positioned at main shaft at least six rollers all around, two pump covers that the guide rail of the held conduit that cooperates is arranged on the pump housing with it are (referring to Fig. 1～Fig. 6), how much depending on the needs of roller can be six, eight etc.

Roller on the above-mentioned solid of rotation is six (referring to Fig. 2).

Have the controlling and driving device in the above-mentioned pump housing and electromagnetic sensor (referring to Fig. 1) that be subjected to pump cover control, under the sensor effect, have only pump cover to adorn firm driver and could start.

The safety cover (referring to Fig. 1, Fig. 2) that covers electromagnetic sensor is arranged on the above-mentioned pump housing.

Two above-mentioned pump covers are connected as a single entity with two lead rail axis, and the pressure spring (referring to figure) of two redeemings is arranged on every guide rail, and two pump covers independently connect together with two lead rail axis, are equivalent to two upper pump heads of clockwise and anticlockwise.

Above-mentioned pump cover is connected with the pump housing (referring to Fig. 2～Fig. 4), can easily pump cover be taken off by cam handle.

The both sides of the above-mentioned pump housing are equipped with a handle respectively, Y-pipe joint is connected (referring to Fig. 1, Fig. 5, Fig. 6) with a handle with two conduits respectively, Y-pipe joint is divided into two with pipeline, liquid is divided into two, these two different pipes of flow unite two into one by Y-pipe joint at the other end, from a passage output.

The adjusting screw (referring to Fig. 2, Fig. 5, Fig. 6) of regulating the gap between pump cover and the guide rail is arranged on the above-mentioned pump cover.

During work, be installed in the conduit in the pump housing, under the effect of guide rail and roller, conduit compressed close, when solid of rotation rotates, pent conduit recovers its original shape, produce certain negative pressure in the pipe liquid is sucked, this partially liq is pushed forward by second roller again subsequently, finally releases from the pump housing, the pressure of two conduits is different with flow velocity, disappear pulse is low after converging, the effect of double guiding pipe spring compression guide rail in addition can keep flow velocity steady in the pressure aspiration procedure, essentially no pulse, precision can reach 0.5%.

Compare with existing peristaltic pump, the utlity model has following advantage:

1, compact structure, reasonable in design, safe and reliable, can work in continuous 24 hours and also can do operation, draw the formula imbitition certainly, do not produce contrary liquid, liquid is not produced shearing force, do not change biochemical property and physical property, liquid only can not produce any pollution through conduit.From 0-200 rev/min of energy stepless speed regulation, can clockwise and anticlockwise.The catheter diameter that uses is from the 1.6-16 millimeter, so range of flow is wide.Can change the conduit (as abrasive rubber, biological rubber, silicone rubber, neoprene, butyl rubber, synthetic rubber and PVC etc.) of different-diameter and unlike material according to different usage requirements.Reach Britain BS800 standard and IEC335-1 of International Electronical Commission (IEC) and IEC34-5 standard-required in technical performance and safety reliability.Performance reaches international standards.

2, low pulse, high flow capacity, highi degree of accuracy, can adopt micro-processor controlled driver, add quantitatively regularly packing of electronic scale, simple to operate, applied range, can be used for beverage packing, cell cultivation, fermentation, filtration and separate, Chemical Manufacture, pharmacy, blood product, ink and pigment, take pictures solution and water treatment etc.

3, one liquid can be divided into two strands of different pressures; The liquid of different flow replaces two pump heads to use.Also can carry two strands of different pressures, different flow, liquid of different nature simultaneously.This pump head pump head that can increase again can double pipeline, and synthetic determination is a kind of novel advanced person's a desirable practical branch armored pump.This pump head aluminium alloy profile and moulding die castings, so amount of finish is little, the manufacturing efficiency height, very favourable to improving the economic and social benefits.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural representation.

Fig. 2 is the pump housing, pump cover, guard shield dismounting mutual alignment figure.

Fig. 3 adjusts schematic representation for guide rail.

Fig. 4 is the plan view of Fig. 3.

Fig. 5 is conduit and pump housing key plan.

Fig. 6 is pump cover, the pump housing, catheter position figure.

Fig. 7 is amplification pump head installation diagram.

Referring to Fig. 1～Fig. 4, front screen 1, rear supporting plate 2 are arranged, the fore bearing seat board 3 that is connected with front screen, back axis hole seat board 4 in the pump housing 1.Six rollers 6 are arranged on the solid of rotation 5 and low rolling bearing 7 and two rotating disks 8 that rub are housed and be connected as a single entity, main shaft 9 is housed in the middle of the rotating disk, be fixed together with fastening screw trip bolt, bearings is equipped with on the front and back bearings seat board in the two ends of main shaft, is rotated by driver drives.Have six roots of sensation pillar 10 usefulness screws to be connected as a single entity between rear bearing seat board and the rear supporting plate, wherein on a pillar electromagnetic sensor 11 is housed, the outside covers on together with safety cover 12.Under the sensor effect, have only pump cover to adorn firm driver and could start.Two independently two lead rail axis of pump cover 13,14 usefulness 15,16 be connected as a single entity, each pump cover has guide rail 17, and two pressure springs 18 are housed on each guide rail, and adjusting screw 19 is arranged on the pump cover.The two ends of lead rail axis are symmetrily processed with semicircle boss, and lead rail axis can be changeed 180 ° with 20 groups on handle, just pump cover can be tightened up in boss is stuck in groove on the pump housing front and back bearings seat board, and handle rotates 180 ° again, just can easily pump cover be taken off.On an end face on the round boss, stud with permanent magnet and play the sensing effect.

Referring to Fig. 1, Fig. 5, the two ends that can be loaded on the conduit 21,22 in the guide rail on the pump cover are connected with a handle 24 by connection wye 23 respectively.

Conduit also can be as shown in Figure 6 without connection wye.

Referring to Fig. 7, also can on main pump head 25, increase an amplification pump head 27 by amplification pump head screw 26, sequence number 28 is a driver among the figure, 29 is bonding film.

Claims (8)

1, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel, bag is plugged in the pump housing that contains import and outlet, it is characterized in that on the described pump housing solid of rotation being arranged, the main shaft that is connected with driver is arranged in the solid of rotation, be positioned at main shaft at least six rollers all around, two pump covers that contain the guide rail that can hold conduit that cooperate are with it arranged on the pump housing.

2, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 1 is characterized in that the roller on the described solid of rotation is six.

3, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 1 is characterized in that having in the described pump housing controlling and driving device and electromagnetic sensor that be subjected to pump cover control.

4, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 3 is characterized in that the safety cover that covers electromagnetic sensor is arranged on the described pump housing.

5, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 1 is characterized in that described two pump covers are connected as a single entity with two lead rail axis, and the pressure spring of two redeemings is arranged on every guide rail.

6, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 5 is characterized in that described pump cover is connected with the pump housing by cam handle.

7, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 1 is characterized in that the both sides of the described pump housing are equipped with a handle respectively, and Y-pipe joint is connected with two conduits with a handle respectively.

8, the low pulse highi degree of accuracy packing Wriggling Pump Head of double flow channel as claimed in claim 1 is characterized in that the adjusting screw of regulating the gap between pump cover and the guide rail is arranged on the described pump cover.

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