CN104069907A

CN104069907A - Pipetting auxiliary device

Info

Publication number: CN104069907A
Application number: CN201410118009.2A
Authority: CN
Inventors: M.E.赫夫林
Original assignee: Brand GmbH and Co KG
Current assignee: Brand GmbH and Co KG
Priority date: 2013-03-27
Filing date: 2014-03-27
Publication date: 2014-10-01
Anticipated expiration: 2034-03-27
Also published as: DE102014003225A1; CN104069907B

Abstract

The theme of the invention is a pipetting Auxiliary device with a housing (1) and a valve device (5) arranged between a joint (2) and a suction bag (4) in the housing. The valve device is provided with at least one control rod movably arranged in the housing (1). An operation tip (6) of the operation rod (7) extends outside of the housing (1). The valve device (5) is provided with two flexible pipe valves (11, 12). The operation rod (7) is provided with a retarding mechanism connected to the central portion oriented towards the flexible pipe valves (11, 12). Through the mode, operation and control are carried out on the flexible pipe valves (11, 12) in a condition that the retarding mechanism connected to the central portion, thus a slow and gentle opening process is allowed.

Description

Move liquid auxiliary equipment

Technical field

The present invention relates to a kind of feature of the preamble with claim 1 the feature of moving liquid auxiliary equipment or a kind of preamble with claim 9 especially for this hose valves that moves liquid auxiliary equipment.

Background technology

For fear of process easily go wrong such as poisonous or corrosive liquid time injure lab assistant, conventionally in the situation that moving liquid auxiliary equipment, use adopts liquid-transfering gun, i.e. fat tripe pipette and graduated pipette (BRAND GMBH+CO KG (Brand GmbH. & Co. KG (DE)) " Information zur Volumenmessung " (volumetric measurement information) particularly, 18th ~ 20 pages, brochure 994651,21/1010; 2012).This liquid-transfering gun is capacity measurer, and it has pipette conventionally, and below pipette, has the rifle head of outflow and on pipette, have aspiration end, and pipette is with volume markings or volume scale.Move liquid auxiliary equipment (referring to " Information zur Volumenmessung " (volumetric measurement information) with regard to common as what applicant provided many years ago, ibid for quoted passage, the 19th page of " macro-Pipettierhelfer " (large capacity move liquid assistor)), aspiration end is inserted in the joint that moves liquid auxiliary equipment housing, thus that liquid-transfering gun is fixed thereon.The other end of housing is with the suction capsule of plugging or screw on.Have the effective jockey being arranged between joint and suction capsule at housing centre portion, for make liquid-transfering gun otherwise be used for the suction capsule of pumping liquid and be connected, or be communicated with the ambient atmosphere that is used for blowing out liquid.Under valve gear is not subject to operating situation, the sealing of static system ground.And in the time handling, also have the region of controlling of moving liquid auxiliary equipment at centre portion.

Also the more known liquid auxiliary equipment of moving is by machine operation, particularly replace suction capsule and there is the diaphragm pump of working by electricity (referring to " Information zur Volumenmessung " (volumetric measurement information), ibid for quoted passage, " accu-jet " the 18th page).There is also by manually control valve device of control member, and the corresponding manipulatable end of described control member stretches out from the centre portion of housing.

With regard to the present invention based on known liquid auxiliary equipment (DE 196 44 919 C1) and in fact known other of moving move with regard to liquid auxiliary equipment, valve gear has at joint and inhales the first hose valves of working between capsule and at joint and lead to the second hose valves working between the opening of ambient atmosphere.Two hose valves are all flexible pipe ball valves.These hose valves are just closed on it as long as no the effect of lateral deflection power.

The flexible pipe ball valve of described type is made up of flexible pipe (conventionally making with silica gel), in described flexible pipe, fills in a ball between two olive shape flexible pipes or analog, and in this position, the slightly larger in diameter of described ball is in the interior diameter of flexible pipe.If put on the flexible pipe part of flexible pipe ball valve without side force, flexible pipe ball valve is just closed.If flexible pipe part is applied to lateral deflection power, flexible pipe part will be out of shape.Hose wall is deviating from a side bulging of wall, and collapses flat in the side towards power.Produce less warpage in the side towards power, thereby hose wall is left spheroid, sealing is cancelled.Flexible pipe ball valve thereby as the opening device of corresponding air flow.

Manipulation to flexible pipe ball valve is undertaken by control stick, and this control stick is flapped toward a direction or other direction by manipulatable end by operating personnel.Thus or open a flexible pipe ball valve, or open another flexible pipe ball valve.If control stick is not applied to power, two flexible pipe ball valves are just closed.

With regard to the present invention based on known moving with regard to liquid auxiliary equipment, control stick is roughly settled swingably in centre.It is the three arm type structure of one, has a lever arm with manipulatable end and respectively towards oneself arm of corresponding flexible pipe ball valve.According to this configuration, preferably control stick is carried out to pure swinging support, this swinging support can be avoided as in other structure towards other member guiding.

In fact show, just move with regard to liquid auxiliary equipment compared with little liquid-transfering gun known for internal cross section, (feinf ü hlig) carries out valve manipulation very light and slowly.

Summary of the invention

Therefore, problem of the present invention is, effectively optimizes economically and technically the manipulation of carrying out in the time opening the hose valves that moves liquid auxiliary equipment of described type.

Foregoing problems have claim 1 preamble feature move liquid auxiliary equipment in the feature of characteristic by claim 1 solved.

According to the present invention, described control stick or corresponding control stick have the slowing mechanism in the middle of being connected to towards hose valves, or are provided with this slowing mechanism.The stroke that the manipulatable end of control stick is gone through thereby the control run of being longer than hose valves itself.In fact this slowing mechanism can adopt various mode to realize.

According to one preferred embodiment, slowing mechanism is provided with the spring in the middle of being connected to towards hose valves.Control stick thereby there is the spring in the middle of being connected to towards hose valves, or be provided with this spring.This spring causes desirable slowing down (Untersetzung), because one section of control run of control stick is absorbed in the strain of spring, only has remaining control run to be implemented on hose valves.Meanwhile, spring allows the very light and slow opening procedure of hose valves, if spring performance has been carried out to corresponding design.

The end away from control stick of spring, through preferred moulding, opens hose valves light and slowly.Spring is preferably molded on control stick.This particularly realizes by the integral type design of spring and control stick.

Spring is designed to flexural spring or tongue-shaped reed especially valuably.

At the design aspect of spring advantageously, the elastic stiffness of spring is through design, makes to spring into before hose valves is opened to start.According to preferred design, elastic reaction is carried out to best utilization, its mode is, spring only just works in the time that valve is opened, and before hose valves is opened completely termination.

The liquid auxiliary equipment of moving of the present invention can be implemented such as moving the unique control stick that acts on two hose valves of liquid assistor for " macro (large capacity) ", or move liquid assistor for " accu-jet (electronic) " and be similar to two control sticks of two control members and implement, so each control stick is applied on one of two hose valves.

Under any circumstance all useful, spring forming is on control stick.Spring is flexural spring or tongue-shaped reed preferably.In a word, recommend control stick preferably to be formed by thermoplastic together with spring.

Also can specify, be greater than the deflection lever arm at (accordingly) hose valves place control stick at the steering pitman arm of manipulatable end place control stick.Useful especially at this, steering pitman arm is at least two double-lengths of deflection lever arm.Realizing in this way stroke slows down.This may be embodied as independent slowing down.But also stroke can be slowed down with aforementioned spring and slows down and combine.

Can adopt in principle any-mode that (accordingly) control stick is arranged in housing movably.Also can consider transverse shifting and vertically move.

Useful especially, (accordingly) control stick is placed in housing swingably.So for swinging the situation of settling, structurally also useful especially, control stick designs for single arm type, settles swingably in the end relative with manipulatable end.

In the time not handling, control stick can mediate in principle in housing.So control stick does not apply deflecting force to any hose valves.Hose valves is not subject to mechanical load thus.These hose valves itself work as spring, and control stick is remained on to intermediate position.

According to a kind of important flexible program, realizing the mode slowing down can be that described control stick or corresponding control stick are respectively equipped with another towards corresponding hose valves and are connected to middle drive link.Can realize stroke by different swingable bars slows down.

The preferred implementation that stroke slows down is that the swing fulcrum of corresponding drive link staggers and arranges with respect to the swing fulcrum of control stick.Can adjust best lever arm according to the desirable situation that slows down thus.

Above-mentioned spring slows down and slows down scheme with stroke described here and also can mutually combine.So obtain the assembled scheme of control stick, spring, drive link or control stick.Under any circumstance, desirable slowing down will be realized by springing into elastic stiffness and bar arm ratio.

Particularly advantageously, control stick and/or drive link are through design, and first make in the time that control stick moves away centre position is that shorter transmission lever arm works, and just has longer transmission lever arm to work in the time that control stick further swings.

For the design of hose valves, first suggestion adopts following design: this design is implemented as known unique embodiment in the prior art, is embodied as flexible pipe ball valve, that is utilizes valve sphere as valve body.Can be referring to preface part to this.

Replace spheroid and adopt slightly the valve body extending, i.e. roller particularly, it is preferably spherical designs or cylindrical design and/or end rounding, allows thus to regulate further light and slowly.So, extending through the flow path of valve body, this has realized another flow behavior.

Theme of the present invention or a kind of hose valves, what it was also applicable to described type in special mode moves liquid auxiliary equipment.For this hose valves with independently invention implication, valve body is designed to roller by regulation, and wherein preferably, roller is spherical designs or cylindrical design and/or end rounding.

If the length of action bars is less than width, and be greater than the interior diameter of flexible pipe part, the shape of roller is conducive to the direction in flexible pipe part and is conducive to form flow path.The spherical form of roller produces a kind of favourable flow behavior, if the radius of the outer surface of camber arch is greater than 1.5 times of flexible pipe interior diameter.

Brief description of the drawings

Below with reference to the accompanying drawing that a preferred embodiment is only shown in detail the present invention is described in detail.In accompanying drawing:

Fig. 1 is the stereogram that moves liquid auxiliary equipment according to of the present invention;

Fig. 2 is the fluid line figure that moves liquid auxiliary equipment of Fig. 1;

Fig. 3 illustrates the structure in the time removing housing of moving liquid auxiliary equipment of Fig. 1;

Fig. 4 illustrates the 26S Proteasome Structure and Function of the valve gear that moves liquid auxiliary equipment of Fig. 1, and it is in different POF;

Fig. 5 is the functional relationship curve map of valve gear;

Fig. 6 and Fig. 4 illustrate the 26S Proteasome Structure and Function of another valve gear that moves liquid auxiliary equipment of Fig. 1 similarly;

Fig. 7 is the schematic diagram of the example of hose valves used here.

Detailed description of the invention

What Fig. 1 illustrated prior art moves liquid auxiliary equipment, its version be move liquid auxiliary equipment in this preferred embodiment.First, this moves liquid auxiliary equipment and has housing 1, and housing at one end has joint 2, and this joint is used for inserting and keeping the liquid-transfering gun 3 being only shown in broken lines here.Shown in preferred embodiment, in addition, joint 2 is the adapters that can back out from housing 1.But also there is other embodiment here.

In one end relative with joint 2 of housing 1, there is one to inhale capsule 4.This suction capsule is also removable at this, tightens with housing 1 in the embodiment shown.Inhale capsule 4 and formed by elastomer, can manual squeezing, and in the time unclamping, produce the negative pressure for pumping liquid.Fig. 3 illustrates a kind of function implementation of the emptying suction capsule 4 of purge valve 10 by being configured to check-valves.

Fig. 1 ~ 3 illustrate in combination, in housing 1, between joint 2 and suction capsule 4, are provided with valve gear 5.This valve gear has control stick 7 at the centre portion of housing 1, and the manipulatable end 6 of this control stick stretches out from housing 1.

As the theory diagram from Fig. 3, joint 2 can end selectively by valve gear 5, can be connected with suction capsule 4, or be connected with the opening that leads to ambient atmosphere 8 shown in Fig. 2.Joint 2 ends by the valve gear 5 of not handled.At joint 2 or when connecing liquid-transfering gun 3 thereon and inhaling capsule 4 and be connected, if inhale capsule 4 under negative pressure, just can liquid be drawn in liquid-transfering gun 3 via jet flow opening.On the contrary, if joint 2 is connected with the opening 9 that leads to ambient atmosphere, liquid just can flow out to and hold container etc. from liquid-transfering gun 3.

In Fig. 1 ~ 3, also can see air blowing capsule 9.The residual liquid that can utilize jet handle to be arranged in the outflow rifle head of liquid-transfering gun 3 by this air blowing capsule blows out.Air blowing capsule 9 is connected with the hydraulic system of valve gear 5, handles this air blowing capsule and can reduce its volume.

In conjunction with Fig. 1,2 and 3 visible, shown in preferred embodiment, valve gear 5 has at joint 2 and inhales the first hose valves 11 between capsule 4 and the second hose valves 12 between joint 2 and opening 8.Two hose valves 11; 12 close, and are applied thereto as long as no the deflecting force of side direction.In embodiment shown here, two hose valves 11; The 12nd, flexible pipe ball valve, thereby there is respectively spheroid as valve body.

In the embodiment shown, for moving liquid auxiliary equipment and hose valves 11 thereof; 12 manipulation is provided with unique control stick 7.This control stick 7 is placed in housing 1 swingably, and conventionally mediates in not controlled situation, as Fig. 4 A principle illustrate.Swing control stick 7 towards inhaling capsule 4, can apply deflecting force to the flexible pipe of the first hose valves 11, and direction towards the opposite swings and can apply deflecting force to the flexible pipe of the second hose valves 12.As already described in the common segment at description, to corresponding hose valves 11; 12 apply deflecting force causes described hose valves 11; 12 open.

In Fig. 1 ~ 3, can see the basic structure of moving liquid auxiliary equipment of type of the present invention.In Fig. 3, also show filter 13, this filter is optional existence, avoids the mist vapour of pumping liquid and/or prevents that liquid from entering so that protection moves the valve gear 5 of liquid auxiliary equipment.

Fig. 4 illustrate now valve gear 5 according to structure of the present invention.In Fig. 4, can see control stick 7 and the manipulatable end 6 thereof settled swingably, this manipulatable end stretches out from the centre portion of housing 1.Fig. 4 A shows the home position while air blowing.The advantage of structure is here, is greater than at corresponding hose valves 11 at the steering pitman arm of manipulatable end 6 place's control sticks 7; The deflection lever arm of 12 place's control sticks 7.Shown in preferred embodiment, the steering pitman arm of control stick 7 is obviously greater than towards two hose valves 11; 12 deflection lever arm.Preferably, steering pitman arm is at least two double-lengths of deflection lever arm.

In the prior art, control stick 7 designs for multi-arm type.Shown in be provided with one in preferred embodiment and structurally also have improved plan, accordingly, control stick 7, for single arm type designs, is placed on gantry pillars 15 in the end relative with manipulatable end 6 swingably.

Alternatively also feasible, by can on housing 1, vertically move and from the outside manually operated control member drive control stick 7, and/or be each hose valves 11; 12 all arrange the control stick of oneself.The mechanical driving member that slows down yaw motion also can be set, and this driving member for example drives with manually operated manipulation knob from the outside.

Under any circumstance, for of the present invention move liquid auxiliary equipment select lever arm that stroke slows down all will cause can be light and slow realize hose valves 11; 12 open motion.

According to moving liquid auxiliary equipment shown in Fig. 4, on control stick 7, be provided with elastic transmission part.Regulation, control stick 7 is towards each hose valves 11; 12 all have or are provided with the spring 14 in the middle of being connected to; 14 '.

At this, the embodiment shown in Fig. 4 shows a kind of all-in-one-piece design, and it is with two springs 14 that are molded over integratedly on control stick 7; 14 '.Two springs 14; 14 ' in each be flexural spring or tongue-shaped reed.It is simple especially, and this is because according to preferably instruction, control stick 7 is together with spring 14 at this; 14 ' be preferably designed to integratedly at this working of plastics being formed by thermoplastic interior.

Described slowing down at this can be both that stroke slows down, and can be also that elasticity slows down.According to corresponding design, spring itself also has the effect of slowing down aspect stroke.

Shown in preferred embodiment feature also have, respective springs 14; 14 ' elastic stiffness through design, make at hose valves 11; 12 start to spring into before opening, and elastic reaction is at hose valves 11; 12 thoroughly open termination before.

Fig. 4 is according to hose valves 11; 12 concrete example, shows at hose valves 11 by the different actuated position a ~ d of control stick 7; The advantageous effect of 12 elastic stiffness while opening.In Fig. 5, in function, set forth these actuated position with curve map.Fig. 4 A illustrates two hose valves 11; 12 position a in being operated.Fig. 4 B illustrates the position b while starting the second hose valves 12 to open manipulation.Spring 14 has worked towards the second hose valves 12, and partly springs into.This is embodied at position b data wire " spring and valve flexible pipe-distortion " and rises continuously in Fig. 5, and data wire " valve is opened " just starts.If control stick 7 is subject to further manipulation, until arrive its position c, as shown in Figure 4 C, spring 14 will spring into completely towards the second hose valves 12, and then becomes inoperative.In Fig. 4 C, maximum opening cross-section maximum 50% that reached the second hose valves 12 at this, meanwhile, the oscillating motion of control stick 7 completes more than 50%.In Fig. 4 D or at the position of Fig. 5 d, reach the maximum opening of the second hose valves 12, control stick 7 arrives the backstop 16 for this reason arranging on housing 1.

Fig. 6 shows another embodiment that moves liquid auxiliary equipment of the present invention with the sequence of positions similar to the embodiment of Fig. 4, accordingly, described in to slow down be that pure stroke slows down.As the first embodiment, also specify here, be greater than at (accordingly) hose valves 11 at the steering pitman arm of manipulatable end 6 place's control sticks 7; The deflection lever arm of 12 place's control sticks 7.

Particularly, in embodiment shown here, specify, control stick 7(or corresponding control stick, if arrange the words of two control sticks) towards corresponding hose valves 11; 12 have the drive link 20 in the middle of being connected to; 20 '.Fig. 6 illustrates, two drive links 20; 20 ' be also placed in swingably on housing 1, be positioned at right side and the left side of the control stick 7 in the middle of being placed in swingably.Drive link 20; 20 ' gantry pillars slightly stagger with respect to the gantry pillars 15 of control stick 7.Having produced certain stroke by this geometrical relationship slows down.

Also specify in the embodiment shown, respectively have a side direction cam 21 in right side and the left side of corresponding control stick 7; 21 ', by described cam towards corresponding drive link 20; 20 ' specify shorter actuated lever arm.

At this, the preferred embodiment shown in Fig. 6 also illustrates, here the two ends of control stick 7 is suitably designed, make in the time that control stick 7 shifts out from centre position, first there is shorter actuated lever arm to work, if control stick 7 further swings, just have longer actuated lever arm to work.For in the effect shown in textural realization here, specify in the embodiment shown in fig. 6, at a distance of the larger distance of gantry pillars 15 ground, another cam 22 is set in the both sides of control stick 7; 22 ', after reaching the larger angle of oscillation of control stick 7, described another cam ability and drive link 20; 20 ' contact.Utilize another cam 22; 22 ' realize slow down ratio than the first cam 21; 21 ' little a lot, approach very much 1:1.

Fig. 6 illustrates, the home position of Fig. 6 A when non-loaded.Position 6B shows to start hose valves 12 is opened to manipulation.Cause significantly and slow down at this, because cam below 21 is applied to (stroke of two-stage slows down) on hose valves 12 by relatively short drive link 20.If control stick 7 is subject to further manipulation, until in-position 6C, hose valves 12 will temporarily be opened.Now, the second cam 22 contacts the drive link 20 of attaching troops to a unit, and slows down ratio and reduces.Similar with the embodiment of Fig. 4, reach here the second hose valves 12 maximum opening cross-section approximately 50%, meanwhile, the oscillating motion of control stick 7 has completed more than 50%.Reach the maximum opening of the second hose valves 12 at position 6D, control stick 7 has arrived its backstop 16 for this reason arranging on housing.Thereby according to two different ratios that slow down, valve is opened and slowed down, as shown in Figure 5.

As flexible program, also can stroke be slowed down with spring and slow down and combine regulation.With similar in Fig. 4, control stick 7 can be provided with the spring of moulding integratedly, or arranges an independently spring to it.Spring springs into towards drive link, supports that the motion of control stick 7 is supported thus, and optimised by steering force.Hose valves itself is transmitted bar and touches.At this, can further optimize and slow down ratio by the quantity of increase variable.

As already mentioned above, for basic structure of moving liquid auxiliary equipment of the present invention, each hose valves 11; 12 are all designed to flexible pipe ball valve.

And according to the new-type design of the one of hose valves, valve body is not designed to spheroid as in prior art, but flexible pipe part longitudinally on be designed to extending longitudinally body, be particularly designed to roller or roller.The Air Flow stroke through valve body of opening in the time of manipulation is extended by following measure: the ratio of again improving light and slow property, volume flow variation and the control run of opening motion.According to this special design of hose valves, particularly suggestion adopts spherical or this design of roller cylindricality and/or end rounding.

Fig. 7 is superincumbent a) a kind of common known flexible pipe ball valve shown in figure schematically, its with flexible pipe part 11 ' and be designed to the valve body 11 of spheroid ", while introducing prior art as introductory song as described in.

B) a kind of new-type hose valves shown in figure below Fig. 7, its also with flexible pipe part 11 ', but with the valve body 11 that is designed to spherical roller ".The alternate design of Fig. 6 c) in, roller has the outer surface of cylindricality.This instruction also has independently meaning.

Efficiently according to structure b) of design, its regulation, the radius 17 of spherical outer surface in vertical section be greater than flexible pipe 11 ' 1.5 times of interior diameter.According to the alternate design with cylindrical outer surface c), the length 18 of roller at least equals the width of control stick 7, and be greater than flexible pipe part 11 ' interior diameter.

Select lever arm ratio on the one hand, select on the other hand spring 14; 14 ' elastic stiffness, thus can be at optimally very light and slow the hose valves 11 of handling of textural realization; 12, for opening without loss valve, and reach maximum opening cross-section.Similarly or additionally can be by valve body 11 " shape realize and improve the light and slow degree of opening motion.

Claims

1. move a liquid auxiliary equipment, with:

Housing (1), housing at one end has the joint (2) for inserting and keep liquid-transfering gun (3), and has suction capsule (4) in opposite end;

In housing (1), be arranged on joint (2) and inhale the valve gear (5) between capsule (4), this valve gear has at least one and is arranged on movably the control stick (7) in housing (1), and the manipulatable end (6) of this control stick stretches out from housing (1),

Wherein, joint (2) can end selectively by valve gear (5), and can be connected with suction capsule (4), or be connected with the opening (8) that leads to ambient atmosphere,

Wherein, valve gear (5) has at joint (2) and inhales the first hose valves (11) between capsule (4) and at joint (2) and lead to the second hose valves (12) between the opening (8) of ambient atmosphere, these two hose valves are closed in the time not having deflecting force effect on it

Wherein, each hose valves (11; 12) be all made up of flexible pipe part and valve body, valve body is positioned at preposition in flexible pipe part,

Wherein, described or corresponding control stick (7) in the time being handled not to hose valves (11; 12) apply deflecting force,

Wherein, with regard to control stick (7), handle facing one direction this control stick (7), can apply deflecting force to the flexible pipe of the first hose valves (11) thus, by applying deflecting force to the flexible pipe of the second hose valves (12) along reciprocal manipulation, or,

Wherein, with regard to each control stick (7), each hose valves (11; 12) all in the time handling this control stick (7) facing one direction, can apply deflecting force to the flexible pipe of the first hose valves (11), and can apply deflecting force to the flexible pipe of the second hose valves (12) in the time handling the second control stick (7) facing one direction,

It is characterized in that,

Described control stick (7) or corresponding control stick (7) are towards hose valves (11; 12) there is the slowing mechanism (14 in the middle of being connected to; 14 '; 20; 20 '), or be provided with this slowing mechanism.

2. the liquid auxiliary equipment of moving as claimed in claim 1, is characterized in that,

Described control stick (7) or corresponding control stick (7) are towards hose valves (11; 12) there is the spring (14 in the middle of being connected to; 14 ') or be provided with this spring as slowing mechanism,

Wherein, spring (14; 14 ') be preferably molded over control stick (7) above, be further preferably designed to flexural spring or tongue-shaped reed,

Wherein, further preferably design spring (14; 14 ') elastic stiffness, make to spring at hose valves (11; 12) open and start before, preferably make elastic reaction at hose valves (11; 12) open completely before and stop.

3. the liquid auxiliary equipment of moving as claimed in claim 1 or 2, is characterized in that, control stick (7) preferably connects same spring or multiple spring (14; 14 ') formed by thermoplastic together.

4. as described in any one in claim 1 ~ 3, move liquid auxiliary equipment, it is characterized in that, the steering pitman arm of locating control stick (7) at manipulatable end (6) is greater than at (accordingly) hose valves (11; 12) locate the deflection lever arm of control stick (7), exist thus stroke to slow down.

5. as described in any one in claim 1 ~ 4, move liquid auxiliary equipment, it is characterized in that,

Control stick (7) is placed in housing (1) swingably,

Wherein, control stick (7) is preferably single arm type design, settles swingably in the end relative with manipulatable end (6).

6. as described in any one in claim 1 ~ 5, move liquid auxiliary equipment, it is characterized in that, control stick (7) mediates in housing (1) in the time being handled, and not to two hose valves (11; 12) apply deflecting force.

7. as described in any one in claim 1 ~ 6, move liquid auxiliary equipment, it is characterized in that,

Described control stick (7) or corresponding control stick (7) are towards corresponding hose valves (11; 12) be respectively equipped with another and be connected to middle drive link (20; 20 '),

Wherein, control stick (7) and/or drive link (20; 20 ') through preferably design, make to leave centre position towards drive link (20 at control stick (7); 20 ') be first that shorter transmission lever arm (21) works when mobile, in the time that further swinging, control stick (7) just have longer transmission lever arm (22) to work.

8. as described in any one in claim 1 ~ 7, move liquid auxiliary equipment, it is characterized in that,

Hose valves (11; 12) utilize valve sphere as valve body, be designed to flexible pipe ball valve, or,

Hose valves (11; 12) utilize roller as valve body, wherein, described roller is preferably spherical designs or cylindrical design and/or end rounding.

9. especially for according to a hose valves that moves liquid auxiliary equipment for any one in claim 1 ~ 8, with flexible pipe part (11 ') and valve body (11 "), this valve body is positioned at preposition in flexible pipe part (11 '),

It is characterized in that,

(11 ") are designed to roller to valve body, and wherein, described roller is preferably spherical designs and/or end rounding.

10. hose valves as claimed in claim 9, is characterized in that,

Valve body (11 ") have the outer surface of camber arch in longitudinal section as spherical rollers, the radius (17) of this outer surface is greater than 1.5 times of interior diameter of flexible pipe (11 '), and/or

(11 ") have a length (18) as spherical rollers to valve body, and this length is less than the width of control stick (7), and are greater than the interior diameter of flexible pipe part (11 ').