CN203161500U

CN203161500U - Linear type peristaltic pump

Info

Publication number: CN203161500U
Application number: CN 201320142866
Authority: CN
Inventors: 沈留训; 储江波
Original assignee: CHANGZHOU PREFLUID TECHNOLOGY Co Ltd
Current assignee: CHANGZHOU PREFLUID TECHNOLOGY Co Ltd
Priority date: 2013-03-27
Filing date: 2013-03-27
Publication date: 2013-08-28
Anticipated expiration: 2023-03-27

Abstract

The utility model discloses a linear type peristaltic pump which comprises a machine frame, a lifting device, a liquid conveying device, a flexible liquid conveying tube, a linear driving module, a switching-on and switching-off valve and a squeeze roller assembly, wherein the linear driving module is assembled on the machine frame, the liquid conveying device is connected with the lifting device, the switching-on and switching-off valve is fixedly connected with the machine frame, the flexible liquid conveying tube is arranged on the liquid conveying device and penetrates through the switching-on and switching-off valve, and the squeeze roller assembly is connected with the linear driving module in an assembled mode. The linear type peristaltic pump prolongs the service life of the flexible liquid conveying tube, is small in occupied space, and can improve liquid conveying accuracy.

Description

A kind of straight line type peristaltic pump

Technical field

The utility model relates to a kind of peristaltic pump, and is especially a kind of for the accurate straight line type peristaltic pump of quantitatively carrying of fluid.

Background technique

Peristaltic pump is of many uses at present, the distribution that is mainly used in fluid is carried, when working, traditional peristaltic pump rely on the rotating curved extruding of roll wheel assembly or briquetting assembly to make snakelike straight line extruding elastic hose, roll wheel assembly or briquetting assembly need plural roller or briquetting to push elastic hose conveying fluid, because the quantity of roller or briquetting is many, be to adopt repeatedly extruding to infusion tube, cause shorten the working life of infusion tube, and roller or briquetting are when excessive velocities, can cause fluid backflow phenomenon when carrying, to occur first, second can cause the resilience of flexible pipe inconsistent, the validity of fluid is carried in influence, and the peristaltic pump of medical industry employing at present needs very high delivery precision and particulate seldom, traditional peristaltic pump validity difference has been difficult to meet consumers' demand, but because peristaltic pump has the advantage of easy realization on-line cleaning and online sterilization, so still can access some application in the not high place of quantitative filling required precision.Also have the volume of this type of pump big, need take very big installing space.High to the quantitative filling required precision, the metering pump that present medical can is adopted mostly is piston type ceramicpump or metal pump, ceramicpump or metal pump are when carrying fluid, fluid can remain in place, pump housing dead angle, be not easy to realize on-line cleaning and online sterilization, can't be fit to the fluid to shear stress sensitive simultaneously.

Summary of the invention

The purpose of this utility model is to provide a kind of working life of improving infusion tube, and it is little to take up room, and can improve the straight line type peristaltic pump of the precision of liquid conveying.

In order to achieve the above object, the technical solution of the utility model is: a kind of straight line type peristaltic pump, comprise frame, lowering or hoisting gear, liquid conveying device, infusion tube, linear drives module, on-off valve and extruding roller assembly, the linear drives module is contained on the frame, liquid conveying device and lowering or hoisting gear load, on-off valve is fixedly connected on the frame, on the infusion tube dress liquid conveying device, and passing on-off valve, extruding roller assembly is installed on the linear drives module.

Described lowering or hoisting gear comprises riser, linear electric motor, guide rail and lifting link, and riser is fixedlyed connected with frame, and linear electric motor are fixedlyed connected with frame, and guide rail is fixedlyed connected with riser, and the lifting link is connected with the guide rail slippage.

Described liquid conveying device comprises lifting board and pipe joint, lifting board is contained on the lifting link, linear electric motor and lifting board are in transmission connection, pipe joint has two, and be contained in the left and right sides, bottom of lifting board respectively, its two ends, below that infusion tube is positioned at lifting board respectively with the pipe joint load of the left and right sides, bottom of lifting board.

Described extruding roller assembly comprises squeezing roll support and squeezing roll, squeezing roll support and the load of linear drives module, and squeezing roll is contained on the squeezing roll support, and is positioned at the infusion tube below.

The guide rail of described lowering or hoisting gear and lifting link all have two.

The two ends of the lifting board of described liquid conveying device all have downward support plate, and pipe joint is installed on the support plate respectively.

After adopting said structure, because driving that infusion tube rises and descend, lowering or hoisting gear makes convergence and away from the motion of extruding roller assembly, the linear drives module can drive extruding roller assembly moving axially along infusion tube simultaneously, after lifting board descends, it is the convergence extruding roller assembly, extruding roller assembly just can push infusion tube, after the linear drives module moves, the fluid that extruding roller assembly just can be oppressed in the infusion tube squeezes out infusion tube to linear drives module moving direction, because the flexible pipe at the pull of vacuum extruding roller assembly rear portion of flexible pipe resilience has also sucked fluid, simultaneously after fluid pushes away, cooperate on-off valve to carry out closure, after making that linear drives module drive extruding roller assembly resets, fluid in the infusion tube can not reflux, carry out intermittence extruding liquor charging thereby go round and begin again, improved the validity of transfusion, owing to be linear intermittent squeezing tube, fluid can not remain in the infusion tube, can there be the corner or spot as yet untouched by a clean-up campaign, and only carry fluid by an extruding roller assembly, under same transport condition, as the flexible pipe of same diameter and same quantity delivered, flexible pipe has the enough time to carry out resilience, do not exist fluid backflow phenomenon when carrying, to occur, can not cause the resilience of flexible pipe inconsistent yet, make like this and carry the precision of fluid to improve greatly, simultaneously owing to be to have only an extruding roller assembly to push linear, the infusion tube of a plurality of extruding roller assemblies extruding before comparing, the working life that must improve infusion tube.Owing to be that straight line type drives, the transverse dimension of this peristaltic pump can be done fewerly, has saved installing space in addition.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the stereogram of Fig. 1;

Fig. 5 be among Fig. 1 extruding roller assembly at initial position, and the phase diagram of flexible pipe after pressing down;

Fig. 6 is the phase diagram after the extruding roller assembly transfusion among Fig. 5;

Fig. 7 is the phase diagram after lifting on the transfusion rear hose among Fig. 6;

Fig. 8 is that extruding roller assembly is got back to phase diagram behind the initial position among Fig. 7.

Embodiment

The embodiment who provides below in conjunction with accompanying drawing is described in further detail the utility model.

Referring to Fig. 1,2,3, shown in 4, a kind of straight line type peristaltic pump, comprise frame 1, lowering or hoisting gear 2, liquid conveying device 3, infusion tube 4, linear drives module 5, on-off valve 6 and extruding roller assembly 7, linear drives module 5 is contained on the frame 1, liquid conveying device 3 and lowering or hoisting gear 2 loads, on-off valve 6 is fixedly connected on the frame 1, infusion tube 4 is contained on the liquid conveying device 3, and pass on-off valve 6, extruding roller assembly 7 is installed on the linear drives module 5, when carrying liquid, lowering or hoisting gear 2 can drive infusion tube 4 and move, and linear drives module 4 can drive extruding roller assembly 7 moving axially along infusion tube 4.

Shown in Fig. 1,2,3,4, in order to reach the effect that control infusion tube 4 rises and descends, described lowering or hoisting gear 2 comprises riser 2-1, linear electric motor 2-2, guide rail 2-3 and lifting link 2-4, riser 2-1 is fixedlyed connected with frame 1, linear electric motor 2-2 is fixedlyed connected with frame 1, guide rail 2-3 is fixedlyed connected with riser 2-1, and lifting link 2-4 is connected with guide rail 2-3 slippage.

Shown in Fig. 1,2,3,4, reaching the straight line type clearance type when carrying liquid in order to make carries, described liquid conveying device 3 comprises lifting board 3-1 and pipe joint 3-2, lifting board 3-1 is contained on the lifting link 2-4, linear electric motor 2-2 and lifting board 3-1 are in transmission connection, pipe joint 3-2 has two, and is contained in the left and right sides, bottom of lifting board 3-1 respectively, its two ends, below that infusion tube 4 is positioned at lifting board 3-1 respectively with the pipe joint 3-2 load of the left and right sides, bottom of lifting board 3-1.

Shown in Fig. 1,2,3,4, in order to make squeezing roll 7-2 carry liquid by straight line, described extruding roller assembly 7 comprises squeezing roll support 7-1 and squeezing roll 7-2, squeezing roll support 7-1 and 5 loads of linear drives module, squeezing roll 7-2 is contained on the squeezing roll support 7-1, and is positioned at infusion tube 4 belows.

Shown in Fig. 1,4, in order further to limit lifting board 2, the guide rail 2-3 of described lowering or hoisting gear 2 and lifting link 2-4 all have two.

Shown in Fig. 1,4, in order to be positioned at the below of lifting board 3 after infusion tube 4 is installed, conveniently push infusion tube 4, the two ends of the lifting board 3-1 of described liquid conveying device 3 all have downward support plate 3-1-1, and pipe joint 3-2 is installed in respectively on the support plate 3-1-1.

Referring to figure, 1,2,3, shown in 4, when the utility model uses, pipe joint 3-2 load with the left and right sides, bottom of the joint of liquid container and lifting board 3-1, the joint of the equipment of use is contained on another pipe joint 3-2, liquid container is communicated with use equipment by infusion tube 4, as shown in Figure 5, drop to the squeezing roll 7-2 place of liquid conveying device 3 under earlier with the drive of lifting board 3-1 by linear electric motor 2-2 in when extruding, squeezing roll 7-2 and lifting board 3-1 are flattened the extruding of infusion tube 3-3 contact segment, as shown in Figure 6, start linear drives module 5 then, linear drives module 5 drives squeezing roll support 7-1 and moves, the squeezing roll 7-2 that is installed on the squeezing roll support 7-1 moves, squeezing roll 7-2 extruding infusion tube 4 interior liquid move and are extruded infusion tube 4 and enter in the use equipment, close infusion tube 4 by on-off valve 6 again, make liquid that can not reflux, as shown in Figure 7, restarting linear electric motor 2-2 drive lifting board 3-1 moves upward, at last more as shown in Figure 8, linear drives module 5 drives squeezing roll 7-2 and returns starting point, then repeat above motion again, with regard to the step liquid of extruding of energy straight line type, owing to be linear intermittent extruding, liquid that can not remains in the infusion tube 4, also can not cause the qualitative change of liquid, and the cooperation by straight line type liquor charging and on-off valve 5, make and carry the precision of liquid to improve greatly, simultaneously owing to be to have only an extruding roller assembly 7 to push linear, the infusion tube 4 of a plurality of extruding roller assembly extruding before comparing, the working life that must improve infusion tube 4.

The KK6010C model that linear drives module 5 adopts Taiwan HIWIN company to produce.

The above only is the optimal way of this straight line type peristaltic pump, as substituting to the close or similar part of this patent, and as changing linear electric motor 2-2 into cylinder, oil hydraulic cylinder or other forms of driving, on-off valve 5 is external.

Claims

1. straight line type peristaltic pump, it is characterized in that: comprise frame (1), lowering or hoisting gear (2), liquid conveying device (3), infusion tube (4), linear drives module (5), on-off valve (6) and extruding roller assembly (7), linear drives module (5) is contained on the frame (1), liquid conveying device (3) and lowering or hoisting gear (2) load, on-off valve (6) is fixedly connected on the frame (1), on infusion tube (4) the dress liquid conveying device (3), and passing on-off valve (6), extruding roller assembly (7) is installed on the linear drives module (5).

2. straight line type peristaltic pump according to claim 1, it is characterized in that: described lowering or hoisting gear (2) comprises riser (2-1), linear electric motor (2-2), guide rail (2-3) and lifting link (2-4), riser (2-1) is fixedlyed connected with frame (1), linear electric motor (2-2) are fixedlyed connected with frame (1), guide rail (2-3) is fixedlyed connected with riser (2-1), and lifting link (2-4) is connected with guide rail (2-3) slippage.

3. straight line type peristaltic pump according to claim 1, it is characterized in that: described liquid conveying device (3) comprises lifting board (3-1) and pipe joint (3-2), lifting board (3-1) is contained on the lifting link (2-4), linear electric motor (2-2) are in transmission connection with lifting board (3-1), pipe joint (3-2) has two, and be contained in the left and right sides, bottom of lifting board (3-1) respectively, its two ends, below that infusion tube (4) is positioned at lifting board (3-1) respectively with pipe joint (3-2) load of the left and right sides, bottom of lifting board (3-1).

4. straight line type peristaltic pump according to claim 1, it is characterized in that: described extruding roller assembly (7) comprises squeezing roll support (7-1) and squeezing roll (7-2), squeezing roll support (7-1) and linear drives module (5) load, squeezing roll (7-2) is contained on the squeezing roll support (7-1), and is positioned at infusion tube (4) below.

5. straight line type peristaltic pump according to claim 1, it is characterized in that: guide rail (2-3) and the lifting link (2-4) of described lowering or hoisting gear (2) all have two.

6. straight line type peristaltic pump according to claim 1, it is characterized in that: the two ends of the lifting board (3-1) of described liquid conveying device (3) all have downward support plate (3-1-1), and pipe joint (3-2) is installed in respectively on the support plate (3-1-1).