CN201747571U

CN201747571U - Pollution-free liquid suction escorting device

Info

Publication number: CN201747571U
Application number: CN2010201432565U
Authority: CN
Inventors: 刘俊轩
Original assignee: Irico Display Devices Co Ltd
Current assignee: Irico Display Devices Co Ltd
Priority date: 2010-03-29
Filing date: 2010-03-29
Publication date: 2011-02-16
Anticipated expiration: 2020-03-29

Abstract

The utility model discloses a pollution-free liquid suction escorting device which comprises an upper corrugated pipe, a lower corrugated pipe, a center connecting body, an upper end cover, a lower end cover, an upper one-way valve, a lower one-way valve and an elastic hose, wherein the center connecting body is arranged between the upper corrugated pipe and the lower corrugated pipe and is used for connecting the upper corrugated pipe and the lower corrugated pipe; the upper end cover is connected with the upper corrugated pipe and is arranged above the upper corrugated pipe; the lower end cover is connected with the lower corrugated pipe and is positioned under the lower corrugated pipe; the upper one-way valve and the lower one-way valve are respectively arranged in the upper end cover and the lower end cover; the elastic hose is arranged between the upper end cover and the lower end cover and is connected with ports of the upper end cover and the lower end cover; and the cross sectional area of the upper corrugated pipe is more than that of the lower corrugated pipe. Therefore, in the whole suction or escort process, the pollution-free liquid suction escorting device only leads the elastic hose to have elastic deformation and is firm in sealing, thus avoiding the pollution for liquid.

Description

A kind of free of contamination liquid sucks the escort device

[technical field]

The utility model relates to a kind of liquid and sucks the escort device, and particularly a kind of free of contamination liquid sucks the escort device.

[background technique]

In the production process of some high-cleanness, highs, high request, require liquid quantitatively suck or the process of escort in, can not produce bubble, can not be by other contaminating impurities.Mainstream technology sucks or the escort device for adopting blade centrifugal pump or plunger pump etc. at present, yet all there is self shortcoming in these devices, for example, the blade centrifugal pump since suck or the escort process in, the variation of front and back pressure, thereby cause poor sealing, and then, bubble produced; Plunger pump, because in the process that sucks or escort, the rubbing action of plunger, and produce particle, and then, contaminated liquid;

In view of above defective, be necessary to provide a kind of free of contamination liquid to suck the escort device in fact to overcome above-mentioned shortcoming.

[model utility content]

Technical problem to be solved in the utility model provides a kind of free of contamination liquid and sucks the escort device, and its liquid that is inhaled into or escorts is not contaminated in suction or escort process.

For solving above technical problem, the utility model provides a kind of free of contamination liquid to suck the escort device, comprise bellows, following bellows, place between bellows and the following bellows and with the two central connecting body that couples together, link to each other with last bellows and place the upper end cap of bellows top, link to each other with following bellows and place down the lower end cap of bellows below, place last one-way valve and following one-way valve in upper end cap and the lower end cap respectively, and place between upper end cap and the lower end cap and the elastic hose that connects of port with it, the cross-section area of wherein going up bellows is greater than the cross-section area that descends bellows.

Preferably, described elastic hose is a cylindrical structural, the inner opening equal diameters of its diameter and upper end cap and lower end cap.

Preferably, described upward bellows, following bellows, central connecting body, upper end cap, lower end cap, and elastic hose forms the dielectric space of a sealing.

Preferably, extending oil or water in the described dielectric space.

Preferably, described elastic hose is made by rubber material.

Preferably, the described bellows of going up is that metallic material is made with following bellows, and takes place to stretch or compression under the effect of central connecting body.

Compared with prior art, the free of contamination liquid of the utility model sucks the escort device and has the following advantages at least: because in whole suction or escort process, and elastic hose generation resiliently deformable only, and whole device sealing is tight, do not have friction, therefore, avoided the pollution of liquid.

[description of drawings]

Fig. 1 is the structural representation that the free of contamination liquid of the utility model sucks the escort device;

Fig. 2 is the structural representation that the free of contamination liquid of the utility model sucks another state of escort device, and wherein link has moved down certain distance.

Label in the accompanying drawing and corresponding elements title are as follows:

Last one-way valve	?1	Upper end cap	?2
				Last bellows	?3	Central authorities' connecting body	?4
Elastic hose	?5	Following bellows	?6
				Lower end cap	?7	Following one-way valve	?8
Wait to suck or escort liquid	?9

[embodiment]

Below in conjunction with accompanying drawing the free of contamination liquid of the utility model being sucked the escort device is described in detail:

The free of contamination liquid of the utility model sucks the upper end cap 2 that the escort device mainly comprises bellows 3, time bellows 6, places central connecting body 4 between the upper and

lower bellows

3,6, links to each other with last bellows 3 and place bellows 3 tops, place the lower end cap 7 that links to each other in the upper end cap 2 and with the last one-way valve 1 of its sealing, with following bellows 6 and place down bellows 6 belows, place lower end cap 7 interior and, and deposit the elastic hose 5 of waiting to suck or escort liquid 9 the following one-way valve 8 of its sealing.

Described upward bellows 3 is identical with following bellows 6 structures, and different is that the cross-section area of going up bellows 3 is a bit larger tham the cross-section area of bellows 6 down.This upper and

lower bellows

3,6 is metallic material and makes, and has certain elasticity, and therefore, under external force, last bellows 3 and following bellows 6 can be stretched or compressed.

Central authorities' connecting body 4 places between bellows 3 and the following bellows 6, and the two is coupled together, and is like this, between last bellows 3 and the following bellows 6 without any the slit, the sealing configuration that bellows 3 and following bellows 6 communicate in the formation.

Upper end cap 2 and lower end cap 7, equal diameters and structure are identical, link to each other with following bellows 6 with last bellows 3 respectively and place respectively above or below bellows 3 and the following bellows 6, in addition, be respectively equipped with one-way valve 1 and following one-way valve 8 on upper end cap 2 and the lower end cap 7, so, by upper and lower one-

way valve

1,8, described upper end cap 2, lower end cap 7, last bellows 3, bellows 6, and seal space S of formation between the central connecting body 4 down.

Elastic hose 5, place in the seal space S, make by rubber material, have certain elasticity, this elastic hose 5 is an isodiametric cylindrical structural up and down, and the inner opening equal diameters of its diameter and upper end cap 2 and lower end cap 7, so, elastic hose 5 places in the seal space S, and its mouth of pipe just joins with the inner opening of upper and

lower end cap

2,7, and fills in it and remain the liquid that sucks or escort.

In addition, described bellows 3, following bellows 6, central connecting body 4, upper end cap 2, the lower end cap 7 gone up, and the Packed dielectric space L of formation between the elastic hose 5, can extending oil in it or medium such as water, so, by this medium, apply pressure on the elastic hose 5, thereby, suck or escort out this suction escort device with waiting to suck or escort liquid 9 in the elastic hose 5.

Below, in conjunction with illustrated in figures 1 and 2, introduce suction or escort process that the free of contamination liquid of the utility model sucks the escort device: at first, central authorities' connecting body 4 is under the driving of extraneous servomechanism installation, move up and down with certain speed, so, on, following

bellows

3,6 under the effect of central connecting body 4, and dielectric space L is compressed or stretches, thereby causes the variation of volume and pressure between dielectric space L and the seal space S, and then, this active force is applied on the elastic hose 5, after elastic hose 5 is subjected to this and applies power, force one-way valve 1 or down one-way valve 8 open, thereby, carry out the extrusion or the suction of liquid 9.

Specifically, under of the drive of central connecting body 4, when upwards being subjected to displacement at extraneous servomechanism installation, first bellows 3 is compressed, and second bellows 6 is stretched, so, volume in the dielectric space L reduces, and pressure increases, thereby, this pressure is applied on the elastic hose 5, makes elastic hose 5 after being subjected to this active force, and the pressure in it increases, so, force the valve closing of one-way valve 1, the valve open of following one-way valve 8, therefore, the liquid 9 in it is escorted away by following one-way valve 8; In contrast, under of the drive of central connecting body 4, when being subjected to displacement downwards at extraneous servomechanism installation, first bellows 3 is stretched, and second bellows 6 is compressed, so, volume in the dielectric space L increases, and pressure reduces, thereby makes elastic hose 5 expand outwardly, so, the extraneous pressure of whole device is greater than the pressure in the elastic hose 5, thereby, cause the valve of one-way valve 1 to be opened, and then, liquid is drawn in the elastic hose 5.

In the present embodiment, at first, the suction of liquid or escort are finished under the effect of pressure, and whole device sealing is tight, therefore, can not have the problem of poor sealing in whole process, and owing to do not have the friction of blade, can contaminated liquid yet.

The above only is a kind of mode of execution of the present utility model, it or not whole or unique mode of execution, the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.

Claims

1. a free of contamination liquid sucks the escort device, it is characterized in that: comprise bellows (3), following bellows (6), place between bellows (3) and the following bellows (6) and with the two central connecting body (4) that couples together, link to each other with last bellows (3) and place the upper end cap (2) of bellows (3) top, link to each other with following bellows (6) and place down the lower end cap (7) of bellows (6) below, place last one-way valve (1) and following one-way valve (8) in upper end cap (2) and the lower end cap (7) respectively, and place between upper end cap (2) and the lower end cap (7) and the elastic hose (5) that connects of port with it, wherein, central authorities' connecting bodys (4) are externally connected to drive unit, and the cross-section area of last bellows (3) is greater than the cross-section area of following bellows (6).

2. free of contamination liquid as claimed in claim 1 sucks the escort device, and it is characterized in that: described elastic hose (5) is a cylindrical structural, the inner opening equal diameters of its diameter and upper end cap (2) and lower end cap (7).

3. free of contamination liquid as claimed in claim 1 or 2 sucks the escort device, it is characterized in that: described upward bellows (3), following bellows (6), central connecting body (4), upper end cap (2), lower end cap (7), and elastic hose (5) forms the dielectric space (L) of a sealing.

4. free of contamination liquid as claimed in claim 3 sucks the escort device, it is characterized in that: interior extending oil of described dielectric space (L) or water.

5. free of contamination liquid as claimed in claim 3 sucks the escort device, and it is characterized in that: described elastic hose (5) is made by rubber material.

6. free of contamination liquid as claimed in claim 1 sucks the escort device, it is characterized in that: described upward bellows (3) and following bellows (6) are made for metallic material, and take place to stretch or compression under the effect of central connecting body (4).