CN2303946Y

CN2303946Y - Super-low pulse multi-flow-channel wriggle-pump head

Info

Publication number: CN2303946Y
Application number: CN 97207567
Authority: CN
Inventors: 翟庆斌; 杨守朴
Original assignee: Jiaying Wriggle Pump Co Chengd
Current assignee: CHENGDU JIAYING MEDICAL PRODUCT CO., LTD.
Priority date: 1997-02-04
Filing date: 1997-02-04
Publication date: 1999-01-13
Anticipated expiration: 2007-02-04

Abstract

The utility model provides a super-low pulse multi-flow-channel wriggle-pump head which comprises a pump body which comprises an inlet and an outlet. The utility model is characterized in that a rotator is arranged on the pump body, and a main shaft which is arranged in the rotator is connected with a motor; at least six rollers are positioned at the circumference of the main shaft. A guide track box which contains at least three guide pipes which are matched with the guide track box is arranged on the pump body. The utility model has the advantages of low pulse, high precision and adjustable flow range.

Description

Ultralow pulse multithread road Wriggling Pump Head

The utility model relates to a kind of Wriggling Pump Head, particularly be a kind of ultralow pulse multithread road Wriggling Pump Head.

The peristaltic pump that present China uses is single channel, on using scope, is restricted, and the structure imperfection, the transfusion pulse is big, and precision is low.

In view of above reason, the purpose of this utility model be for a kind of low pulse, highi degree of accuracy are provided, range of flow is adjustable, ultralow pulse multithread road Wriggling Pump Head applied widely.

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 can be connected with motor is arranged in the solid of rotation, be positioned at main shaft at least six rollers all around, there are with it at least three of cooperating to hold the guide rail box of conduit on the pump housing (referring to Fig. 1～Fig. 7), the length of roller is decided on what that set passage, and passage can select 4,8,12,16 etc.

Above-mentioned roller is six, and central gear is arranged on the main shaft, six with the central gear planet gear meshed be contained in (referring to Fig. 1, Fig. 2) on six rollers respectively.

Six above-mentioned gears are contained in (referring to Fig. 1, Fig. 3) in the O type cushion rubber, make its rotation steadily and play the planetary reduction gear effect.

The guard shield (referring to Fig. 1) that planetary pinion is covered is arranged on the above-mentioned pump housing, play the safety protection effect.

Above-mentioned guide rail box one end is connected with the pump housing and the other end and pump housing flexible connection (referring to Fig. 5) by the groove on it, and it is convenient to change conduit.

The other end of above-mentioned guide rail box is connected (referring to Fig. 5) with pump housing cam control; cam control is connected the guide rail box with the pump housing; and cam is the impacting force of variable-speed conduit also; and can under non-stop-machine situation, change conduit; under same rotating speed, can adorn the conduit of different inner diameters, carry several different liquid.

Above-mentioned roller is 11 (referring to Fig. 7), has cancelled planetary mechanism, and rotating speed and flow all can be increased.

During work, conduit is installed on the pump housing solid of rotation roller, refills the upper rail box, conduit can be fixed on the guide rail box with two spring chucks, to prevent axial float.The roller that rotation advances when one section conduit recovers its original shape, produces certain negative pressure with closed catheter in the pipe, liquid is sucked, and this partially liq is promoted forward by second roller subsequently, finally releases from the pump housing.

The utility model can adopt computer control, also can manually control, and motor acceleration and deceleration device drives, solid of rotation is again the planetary wheeling mechanism (also can adopt more roller) of a multi-roller, can reduce pulse and limiting overload, so under various conditions, keep invariable.

The utility model stepless speed regulation in 0～50 rev/min of scope, employed catheter diameter amounts to 20 kinds of specifications by 0.13～2.79, and the Peak Flow Rate of each flow is the 10.2ml/ branch.The utility model pump head that can increase, total discharge can increase and be twice.

The ultralow pulse of the utility model, highi degree of accuracy, can be used for moving, draw certainly formula extraction liquid, do not reflux, liquid is not produced shearing, do not change biochemical property, liquid only can not produce any pollution through conduit, noise is low, the flow adjustable extent is wide, is specially adapted to medical and health, physical and chemical experiment, industries such as highi degree of accuracy packing.The utility model volume is little, the position that takes up room is little, technology capability is good, convenient operating maintenance, also can be widely used in beverage packing, cell cultivation, fermentation, filtration and separate, Chemical Manufacture, ink and aspects such as pigment, pharmacy, blood product, photograph solution and water treatment.The technical performance of the utility model pump head and safety reliability reach Britain BS800 standard and IEC IEC335-1 and IEC34-5 regulation.

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

Fig. 1 is the utility model embodiment 1 structural representation.

Fig. 2 is planetary pinion, the roller mutual alignment figure among Fig. 1.

Fig. 3 is the separation graph of Fig. 1.

Fig. 4 is the mutual alignment schematic representation behind the amplification pump.

Fig. 5 is the utility model embodiment 2 structural representations.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is a solid of rotation perspective view among Fig. 5.

Embodiment 1:

Fig. 1～Fig. 3 has provided the utility model embodiment 1 figure.Fore bearing seat board 2, rear bearing seat board 3 are arranged in the pump housing 1, contain before reel 4, the back reel 5 solid of rotation 6 in the main shaft that is connected with motor 7 by bearings on forward and backward bearing plate.Six rollers 8 be evenly distributed on main shaft around and two ends be fixed on two reels by rolling bearing.One end of main shaft has central gear 9, be contained on the O shape cushion rubber 11 and be contained in respectively with six planetary pinions 10 of central gear 9 engagement and drive the roller rotation on six rollers.Guard shield 12 is contained on the pump housing safety protection effect that the planetary pinion cover got up.4 guide rail box 13 1 ends are connected on the pump housing by the groove on it 14 respectively and the other end adopts as shown in Figure 5 cam 15 to handle the guide rail box is fixed on the pump housing.During work conduit is installed on the pump housing solid of rotation roller, refills the upper rail box, conduit is fixed on the guide rail box preventing with two spring chucks and moves axially.The pump head 16 that can increase as shown in Figure 4 in the present embodiment doubles total discharge.

Embodiment 2:

Fig. 5～Fig. 7 has provided the utility model embodiment 2 structural representations.Present embodiment 2 is basic same with embodiment 1, and not existing together is gearless mechanism in the solid of rotation, but has adopted 17,5 guide rail boxes 18 of 11 rollers.

Claims

1, ultralow pulse multithread road Wriggling Pump Head, comprise 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 can be connected with motor is arranged in the solid of rotation, be positioned at main shaft at least six rollers all around, at least three guide rail boxes that can hold conduit that cooperate are with it arranged on the pump housing.

2, ultralow pulse multithread as claimed in claim 1 road Wriggling Pump Head is characterized in that described roller is six, and central gear is arranged on the main shaft, and six are contained in respectively on six rollers with the central gear planet gear meshed.

3, ultralow pulse multithread as claimed in claim 2 road Wriggling Pump Head is characterized in that described six planetary pinions are contained in the O type cushion rubber.

4, ultralow pulse multithread as claimed in claim 2 road Wriggling Pump Head is characterized in that the guard shield that planetary pinion is covered is arranged on the described pump housing.

5, ultralow pulse multithread as claimed in claim 1 road Wriggling Pump Head is characterized in that described guide rail box one end is connected with the pump housing by the groove on it, the other end and pump housing flexible connection.

6, ultralow pulse multithread as claimed in claim 5 road Wriggling Pump Head is characterized in that the other end of described guide rail box is connected with pump housing cam control.

7, ultralow pulse multithread as claimed in claim 1 road Wriggling Pump Head is characterized in that described roller is 11.