CN208911120U - A kind of two-way propulsion device of choke type - Google Patents

Abstract

A kind of two-way propulsion device of choke type of the utility model, comprising: chamber cylinder, for accommodating fluid；First propulsion unit and the second propulsion unit, elastic dynamic element are arranged between the first propulsion unit and the second propulsion unit；Push fixed cell；When releasing the fixed function for pushing fixed cell, elastic dynamic element discharges elastic potential energy and applies active force to the first propulsion unit and the second propulsion unit；Chamber cylinder is provided with fluid outlet；Bluff body is provided on fluid outlet, when the first propulsion unit and the second propulsion unit act on the fluid in chamber cylinder by the active force of elastic potential energy, bluff body prevents fluid from flowing out from fluid outlet.The two-way propulsion device of the choke type of the utility model is sequentially injected during washing pipe, realizes two-way propulsion and real-time fluid flow control, so that the operation for injecting fluid is safer, more orderly, easier.

Description

A kind of two-way propulsion device of choke type

Technical field

The utility model relates to medical instruments field more particularly to the two-way propulsion devices of choke type.

Background technique

In clinical infusion work, the case where being transfused there are two types of medical fluid tandem, sequential infusions are realized at present Usual way be first to be extracted connect with perfusion tube after a certain amount of medical fluid with syringe, by the medical fluid push-in in medical fluid injector Perfusion tube, administration finish, then are connect with after a certain amount of medical fluid of syringe extraction with perfusion tube, by the medical fluid in medical fluid injector It is pushed into perfusion tube, completes secondary administration；Realize that the usual way of two kinds of medical fluids while infusion is first a certain amount of with syringe extraction Medical fluid after connect with an infusion connector in multiway infusion tube road, then after extracting a certain amount of medical fluid with another syringe It is connect with another infusion connector in multiway infusion tube road, the medical fluid in two syringes is pushed into infusion according to sequencing Pipe completes order of administration.These types of manual infusion's operating process is cumbersome, and often, syringe can be with infusion for joint area exposure Repeatedly connection and separation occur for pipe joint, and infection risk is high, and remove non-stop drug administration by injection, when will be unable to effectively control unit In fluid flow and inject sequence.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of two-way propulsion devices of choke type, during washing pipe, Sequence is injected, and realizes two-way propulsion and real-time fluid flow control, so that the operation for injecting fluid is safer, more orderly, simpler Just.

In order to achieve the above object, the utility model provides the following technical solutions:

A kind of two-way propulsion device of choke type, comprising:

Chamber cylinder, for accommodating fluid；

First propulsion unit and the second propulsion unit, first propulsion unit and second propulsion unit are arranged at In the chamber cylinder, for applying thrust to the fluid in the chamber cylinder；

Elastic dynamic element, the elastic dynamic element are arranged in first propulsion unit and second propulsion unit Between；

Fixed cell is pushed, for fixing first propulsion unit and second propulsion unit in the chamber cylinder Position；

When fixed first propulsion unit of the promotion fixed cell and second propulsion unit are in the chamber cylinder Position when, the elastic dynamic element stores elastic potential energy, described when releasing the fixed function for pushing fixed cell Elastic dynamic element discharges elastic potential energy and applies active force to first propulsion unit and second propulsion unit；

The chamber cylinder is provided with fluid outlet；

It is provided with bluff body on the fluid outlet, when first propulsion unit and second propulsion unit pass through bullet Property potential energy active force when acting on the fluid in chamber cylinder, the bluff body prevents fluid from flowing out from fluid outlet.

Preferably, the chamber cylinder includes the first chamber cylinder and the second chamber cylinder, and the first chamber cylinder and the second chamber cylinder are removable The sealed connection unloaded.

Preferably, the promotion fixed cell extends radially through the chamber cylinder, first propulsion unit and described second pushes away Into unit, with the position of fixation first propulsion unit and second propulsion unit in the chamber cylinder.

Preferably, first propulsion unit includes that set and first is promoted to promote head, and second propulsion unit includes pushing away Head is promoted into bar and second, the pushing ram is mobilizable to be plugged in the propulsion set, and the elastic dynamic element is set in The propulsion is put on, and one end is contacted with the first propulsion head, and the other end is contacted with the second propulsion head, described in releasing When pushing the fixed function of fixed cell, the elastic dynamic element discharges elastic potential energy and promotes head and described to described first Second promotes head to apply active force.

Preferably, it is provided with the first keyhole on the chamber cylinder, the first propulsion head or the propulsion, which are put on, is provided with the Two keyholes are provided with third keyhole on the pushing ram, and the promotion fixed cell extends radially through first keyhole, described Two keyholes and the third keyhole are with fixation first propulsion unit and second propulsion unit.

Preferably, it is additionally provided with speed governor in the propulsion set, is additionally provided in the outer circumferential walls of the pushing ram With the matched speed regulating tank of the speed governor, elastic potential energy discharges and pushes first propulsion unit and described second When propulsion unit relative movement, the speed governor and the speed regulating tank relative motion, so that described first Propulsion unit and/or second propulsion unit carry out impulse movement.

Preferably, the inner bottom surface of the speed regulating tank is curve-like.

Preferably, the slot to match with the speed governor is equipped in the inside of first propulsion unit, it is described Speed governor is arranged in corresponding slot.

Preferably, chamber cylinder one end and/or the other end are provided with choked flow piece, when first propulsion unit and described When two propulsion units act on the fluid in chamber cylinder by the active force of elastic potential energy, the choked flow piece prevents the fluid in chamber cylinder Incoming fluid outlet.

Preferably, first propulsion unit and second propulsion unit are provided with dismountable piston.

According to above-mentioned technical solution, it is recognised that a kind of two-way propulsion device of choke type of the utility model, comprising: Chamber cylinder, for accommodating fluid；First propulsion unit and the second propulsion unit, the first propulsion unit and the second propulsion unit are respectively provided with In chamber cylinder, for applying thrust to the fluid in chamber cylinder；Elastic dynamic element, the setting of elastic dynamic element promote single first Between member and the second propulsion unit；Fixed cell is pushed, for fixing the first propulsion unit and the second propulsion unit in chamber cylinder Position；When pushing fixed cell to fix the position of the first propulsion unit and the second propulsion unit in chamber cylinder, elastic dynamic Element stores elastic potential energy, and when releasing the fixed function for pushing fixed cell, elastic dynamic element release elastic potential energy is simultaneously right First propulsion unit and the second propulsion unit apply active force；Chamber cylinder is provided with fluid outlet；Choked flow is provided on fluid outlet Body, when the first propulsion unit and the second propulsion unit act on the fluid in chamber cylinder by the active force of elastic potential energy, choked flow Body prevents fluid from flowing out from fluid outlet.Before washing pipe operation, prior to pre-installing fluid in chamber cylinder, by the fixation for pushing fixed cell Effect, the initial position of the first propulsion unit and the second propulsion unit in chamber cylinder is fixed, while setting is pushed away first The energy storage state that storage elastic potential energy is kept into the elastic dynamic element between unit and the second propulsion unit, it is first when washing pipe The fixed function for pushing fixed cell is first released, at this time the elastic potential energy release of elastic dynamic element, to the first propulsion unit Apply active force with the second propulsion unit, the first propulsion unit and the second propulsion unit simultaneously also apply the fluid in chamber cylinder at this time Add active force, and then complete two-way propulsion, by control bluff body, can also realize the flow control for the pipe fluid that liquidates, so that The operation for injecting fluid is safer, more orderly, easier.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of cross-sectional view of the two-way propulsion device of choke type of the utility model；

Fig. 2 is the Structure explosion diagram of the two-way propulsion device of another choke type of the utility model；

Fig. 3 is the cross-sectional view of the two-way propulsion device of another choke type of the utility model；

Fig. 4 is the cross-sectional view of the two-way propulsion device of another choke type of the utility model；

Fig. 5 is a kind of structural schematic diagram that the utility model pushes fixed cell；

Wherein, it is marked in attached drawing as follows:

1- the first chamber cylinder, 2- the second chamber cylinder, 3- elastic dynamic element, 4- push fixed cell, and 5- promotes set, 6- first Head, 7- pushing ram are promoted, 8- second promotes head, 9- speed governor, 10- speed regulating tank, 11- fluid outlet, 12- choked flow Body, 121- choked flow piece, 15- piston, the first keyhole of 16-, the second keyhole of 17-, 18- third keyhole, the first position line of 19-, 20- Second position line, 21- locating piece.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, Fig. 1 is a kind of cross-sectional view of the two-way propulsion device of choke type of the utility model；Fig. 2 is this The Structure explosion diagram of the two-way propulsion device of another choke type of utility model；Fig. 3 is another choke type of the utility model The cross-sectional view of two-way propulsion device；Fig. 4 is the cross-sectional view of the two-way propulsion device of another choke type of the utility model；Fig. 5 is A kind of structural schematic diagram of the utility model promotion fixed cell.

In one specific embodiment of the utility model, a kind of two-way propulsion device of choke type, comprising: chamber cylinder, for holding Receive fluid；First propulsion unit and the second propulsion unit, first propulsion unit and second propulsion unit are arranged at In the chamber cylinder, for applying thrust to the fluid in the chamber cylinder；Elastic dynamic element 3, the elastic dynamic element 3 are arranged Between first propulsion unit and second propulsion unit；Fixed cell 4 is pushed, promotes list for fixing described first Position of first and described second propulsion unit in the chamber cylinder；When the promotion fixed cell 4 fixed described first promotes list When position of first and described second propulsion unit in the chamber cylinder, the elastic dynamic element 3 stores elastic potential energy, works as releasing When the fixed function for pushing fixed cell 4, the elastic dynamic element 3 discharges elastic potential energy and promotes to described first single First and described second propulsion unit applies active force.

Wherein, the prepackage of fluid can be filled by using liquid-filling machine into chamber cylinder in advance, and fluid here can be paste Object is also possible to medical fluid, is also possible to water, as long as can flow, needs depending on the application can be adjusted, specifically Ingredient and form are not specifically limited, using fluid it is pre- it is filling by the way of can reduce fluid exposure bring pollution risk, stream Body it is pre- it is filling can also reduce the step of injecting fluid, reduce the labor intensity of medical staff；First propulsion unit and second pushes away It can be arranged into unit with the reverse symmetry of run-in index, setting that can also be vertical, or at the oppositely arranged of certain curvature, only It wants to apply certain thrust to the fluid in chamber cylinder in the process of work；Elastic dynamic element 3 can be with one end and the The connection of one propulsion unit, the other end connect with the second propulsion unit, can also be directly placed at the first propulsion unit and second and push away Into between unit, for elastic dynamic element 3 specific set-up mode without limitation, as long as can guarantee when pushing fixed cell 4 when fixing the first propulsion unit and the second propulsion unit, and elastic dynamic element 3 can store certain elastic potential energy, this In elastic dynamic element 3 can be spring, be also possible to elastomer block, be not specifically limited, as long as identical technology can be reached Effect, elastic dynamic element 3 can be one or more, can be according to covering from inside to outside when elastic dynamic element 3 is multiple If form be configured, and spacer is set between adjacent spring dynamical element 3, so that multiple elastic dynamic elements 3 exist During storing power and release, elastic potential each other can be overlapped mutually without interfering with each other, therefore can according to practical needs Axial increase and decrease elastic dynamic element 3 and spacer quantity, increase and decrease promote stroke；Pushing fixed cell 4 can be positioning column or spiral shell Other locating pieces such as nail also may include one, two or more, for example one of fixed cell 4 be pushed to extend radially through To fix the first propulsion unit, another pushes fixed cell 4 to extend radially through chamber cylinder and second and pushes away for chamber cylinder and the first propulsion unit Into unit to fix the second propulsion unit, fixed cell 4 is pushed to be fixed the first propulsion unit and second by the blocking of chamber cylinder Propulsion unit need to only be extracted when needing to release the fixed function for pushing fixed cell 4 and push fixed cell 4；It pushes solid Order member 4 can also be positioning block assembly, as shown in figure 5, positioning block assembly includes that one end is connect with the first propulsion unit The second position line 20 and locating piece 21 that one position line 19, the other end are connect with the second propulsion unit, locating piece 21 are arranged in chamber Cylinder is outer, and setting elastomer block and location hole in locating piece 21, the first position line 19 and the second position line 20 pass through location hole, and pass through Elastomer block is fixedly clamped, and when needing to release the fixed function for pushing fixed cell 4, only need to adjust elastomer block makes the first positioning Line 19 and the second position line 20 loosen, and the first propulsion unit and the second propulsion list can be fixed by only listing two here The technological means of member, there are also other technologies means certainly, will not enumerate here, as long as can reach identical technical effect i.e. Can, this is it will be apparent to those skilled in the art that be easy to associate.

Before washing pipe operation, prior to pre-installing fluid in chamber cylinder, by pushing the fixed function of fixed cell 4, first is promoted The initial position of unit and the second propulsion unit in chamber cylinder is fixed, while being arranged and promoting in the first propulsion unit and second Elastic dynamic element 3 between unit keeps the energy storage state of storage elastic potential energy, and when washing pipe, it is fixed single to be first released from promotion The fixed function of member 4, the elastic potential energy release of elastic dynamic element 3 at this time, to the first propulsion unit and the second propulsion unit Apply active force, the first propulsion unit and the second propulsion unit also apply active force to the fluid in chamber cylinder simultaneously at this time, in turn Two-way propulsion is completed, manually-operated problems are avoided, eliminates many operating procedures, mitigates medical staff's labor intensity, The operation for injecting fluid is safer, easier.

In another specific embodiment of the utility model, as shown in Fig. 2, the chamber cylinder includes the first chamber cylinder 1 and second Chamber cylinder 2, the first chamber cylinder 1 and the second chamber cylinder 2 are removably tightly connected.It is such design so that washing pipe device more The assembling and replacement for facilitating components, increase the recyclability used to a certain extent, while also increasing whole close Sealing property, for example be bonded, it can also be flexibly connected, split efficiency to improve the assembling of single unit system, for example be clamped, can also consolidate Fixed connection, to improve the stability of single unit system, for example rivets, and dismountable mode there are many being not specifically limited here, only It wants that identical technical effect can be reached.

In another specific embodiment of the utility model, as shown in Figure 1, the promotion fixed cell extend radially through it is described Chamber cylinder, first propulsion unit and second propulsion unit are promoted with fixation first propulsion unit and described second Position of the unit in the chamber cylinder.It pushes fixed cell to extend radially through chamber cylinder, the first propulsion unit and the second propulsion unit, makes It obtains and forms stable positional relationship between three, so that the elasticity between the first propulsion unit and the second propulsion unit Dynamical element 3 can keep again stable while storing elastic potential energy, after releasing the locking for pushing fixed cell, elasticity While dynamical element 3 discharges elastic potential energy, the first propulsion unit and the second propulsion unit rely on the thrust of elastic dynamic element 3 Act on the fluid in chamber cylinder.

In another specific embodiment of the utility model, as illustrated in fig. 1 and 2, first propulsion unit includes promoting Set 5 and first promotes head 6, and second propulsion unit includes that pushing ram 7 and second promote head 8, and the pushing ram 7 is mobilizable It is plugged in the propulsion set 5, the elastic dynamic element 3 is set on the propulsion set 5, and one end and described first promotes First 6 contact, the other end is contacted with the second propulsion head 8, described when releasing the fixed function for pushing fixed cell 4 Elastic dynamic element 3 discharges elastic potential energy and promotes head 6 and described second that head 8 is promoted to apply active force to described first.Logical It crosses under the initial fixed function for pushing fixed cell 4, elastic dynamic element 3 can store certain elastic potential energy, lock when releasing After fixed, elastic potential energy release is plugged in propulsion set 5 since pushing ram 7 is mobilizable, and elastic dynamic element 3 respectively with First promotes head 6 and second that head 8 is promoted to contact, therefore first promotes head 6 and second to promote head 8 will by the active force of elastic potential energy It is moved, while propulsion set 5 being driven also to carry out relative motion with pushing ram 7, and then complete two-way propulsion washing pipe operation.

In another specific embodiment of the utility model, as illustrated in fig. 1 and 2, the first keyhole is provided on the chamber cylinder 16, the first propulsion head 6 or the propulsion cover and are provided with the second keyhole 17 on 5, are provided with third keyhole on the pushing ram 7 18, the promotion fixed cell 4 extends radially through first keyhole 16, second keyhole 17 and the third keyhole 18 with solid Fixed first propulsion unit and second propulsion unit.Push fixed cell 4 by the blocking of keyhole and chamber cylinder with fixation First propulsion unit and the second propulsion unit need to only be fixed when needing to release the fixed function for pushing fixed cell 4 by pushing Unit 4 is successively extracted from keyhole, and the first keyhole 16, first for pushing fixed cell 4 that can pass through on chamber cylinder promotes head 6 On the second keyhole 17 and pushing ram 7 on third keyhole 18 to fix the first propulsion unit and the second propulsion unit, can also be with The third keyhole 18 on the second keyhole 17 and pushing ram 7 on the first keyhole 16, propulsion set 5 on chamber cylinder is to fix first Propulsion unit and the second propulsion unit, as long as capableing of the relative position of rational deployment promotion fixed cell 4 and spring powered element ?.Fixed cell 4 is pushed to can be set to positioning column, as long as then pushing the length of fixed cell 4 not less than the width of chamber cylinder Degree, when pushing fixed cell 4 to pass through keyhole, due to the barrier effect of chamber cylinder, it can play to the first propulsion unit With the locking stopping function of the second propulsion unit.

In another specific embodiment of the utility model, as shown in Fig. 2, being additionally provided with speed tune in propulsion set 5 Part 9 is saved, is additionally provided with and the matched speed regulating tank 10 of the speed governor 9, bullet in the outer circumferential walls of the pushing ram 7 Property potential energy when discharging and push first propulsion unit and the second propulsion unit relative movement, the speed is adjusted Part 9 and 10 relative motion of speed regulating tank, so that first propulsion unit and/or second propulsion unit carry out Impulse movement.Before washing pipe operation, prior to pre-installing fluid in chamber cylinder, by pushing the fixed function of fixed cell 4, first is promoted The initial position of unit and the second propulsion unit in chamber cylinder is fixed, while being arranged and promoting in the first propulsion unit and second Elastic dynamic element 3 between unit keeps the energy storage state of storage elastic potential energy, and when washing pipe, it is fixed single to be first released from promotion The fixed function of member 4, the elastic potential energy release of elastic dynamic element 3 at this time, to the first propulsion unit and the second propulsion unit Apply active force, the first propulsion unit and the second propulsion unit also apply active force to the fluid in chamber cylinder simultaneously at this time, in turn Two-way propulsion is completed, at the same time, promotes the speed governor 9 in set 5 and the speed regulating tank 10 in 7 outer circumferential walls of pushing ram Relative motion, so that the first propulsion unit and/or the second propulsion unit carry out impulse movement.Wherein, speed governor 9 with The mode of the inside connection of pushing ram 7 can be a variety of, for example be bonded, for example be integrally formed, for example be embedded, in the utility model A preferred specific embodiment in, be equipped with the slot that matches with speed governor 9, speed tune in the inside for promoting set 5 The section fixation of part 9 is embedded in corresponding slot, and on the one hand the mode being embedded is convenient for the installation of speed governor 9, fill when to washing pipe Set when being dismantled, speed governor 9 can also be dismantled or be replaced, at the same speed governor 9 be it is spherical, can be preferred It is spherical for spherical shape or ellipse, so that speed governor 9 and the contact friction force of speed regulating tank 10 are smaller, so that fast The movement for spending regulating part 9 is more flexible, increases the effect of pulse washing pipe, impulse movement mentioned here or pulse washing pipe are to speed The amplitude of variation of degree does not do specific requirement, wherein the inner bottom surface of speed regulating tank 10 is curve-like, is promoted with playing to first The control action of speed in unit and/or the second propulsion unit motion process, speed regulating tank 10 are curve-like, curve here Shape can be corrugated and be also possible to polyline shaped, and for the ripple radian or broken line angle of corrugated or polyline shaped, this is specific It is not particularly limited in embodiment, as long as the effect of pulse and speed control can be played, according in practical process, specifically Speed requirement can carry out the structural adjustment of adaptability, if the speed than wishing the first propulsion unit and the second propulsion unit washing pipe Degree is consistent, and can be configured to speed regulating tank 10, for example is arranged to uniform curve-like structure.Here the number of slot Mesh, the number of speed governor 9, the number of speed regulating tank 10 are not specifically limited, such as can be along in pushing ram 7 Multiple slots are circumferentially arranged in side, while matching multiple speed governors 9, at the same the outer circumferential walls of pushing ram 7 open up it is a plurality of with The speed regulating tank 10 that speed governor 9 matches, of courses, and speed governor 9 can also be directly anchored to promote set 5 Inner surface does not use the fixation of notch to be embedded mode, can also be bonded, as long as can reach identical technical effect.Speed The radian spent at the knee of curve of regulating tank 10, which can according to need, to be adaptively adjusted, such as along the outer end for promoting set 5 Mouth can be set to incrementally increase towards the radian at knee of curve at inner port, so that speed governor 9 is in speed regulating tank According to the radian difference at different ripple inflection points and by different drag effects in 10, then the first pushing unit and second pushes away Moving cell can also carry out the movement of different rates, and during washing pipe, the elastic potential energy of elastic dynamic element 3 will gradually subtract It is weak, therefore the knee of curve radian by changing speed regulating tank 10, with the fortune to the first pushing unit and the second pushing unit It is dynamic to generate certain dynamic effect indirectly, to be further ensured that the stationarity of two-way washing pipe movement.

In another specific embodiment of the utility model, as shown in Figure 1, chamber cylinder both ends are provided with fluid outlet 11, although two-way washing pipe, in the actual operation process, fluid outlet passage that may be needed according to different needs Number is different, therefore is not particularly limited here to the number of fluid outlet 11, can be two, can also be it is multiple, according to reality Depending on the demand of border, which is not described herein again, during washing pipe, is made by the thrust of the first pushing unit and the second pushing unit With, the fluid in chamber cylinder is moved under the action of thrust, and from fluid outlet 11 flow out, convenient for by the fluid in chamber cylinder from Different direction promotes perfusion tube, then according to the different demands of practical operation, the chamber cylinder that is directly contacted with the first propulsion unit Interior pre- filling fluid can be a kind of medium, and pre- filling fluid can be in the chamber cylinder directly contacted with the second propulsion unit Another medium, naturally it is also possible to be same medium, thus simultaneously or it is indirectly orderly will be in fluid-propelled perfusion tube.

In another specific embodiment of the utility model, as shown in figure 4, chamber cylinder one end and/or other end setting There is choked flow piece 121, when first propulsion unit and second propulsion unit act on chamber by the active force of elastic potential energy When fluid in cylinder, the choked flow piece 121 prevents the fluid incoming fluid outlet 11 in chamber cylinder, and the setting of choked flow piece 121 can be with In the one or both ends of chamber cylinder, wherein there are many structure types of choked flow piece 121, as long as identical technology effect can be reached Fruit no longer repeats one by one here, for example offers holding tank on the chamber barrel of chamber cylinder one end and/or the other end, passes through Resistance valve is plugged in the circulation for closing and cutting off fluid in holding tank, for another example offers circumferential direction on the chamber cylinder for accommodating fluid Restricted orifice, the circulation for closing and cutting off fluid in restricted orifice is plugged in by spoiler, can also accommodate fluid chamber Cylinder and setting choked flow baffle plate and choked flow jack at fluid outlet 11, are plugged at choked flow jack by choked flow baffle plate to close and cut The circulation of cutout body, and then even if the first propulsion unit and the second propulsion unit act on chamber cylinder by the active force of elastic potential energy When interior fluid, fluid can not circulate, and flow out from fluid outlet 11, and the first propulsion unit and second promote it is single Member will not similarly move.If only choked flow piece 121 is arranged in one end of chamber cylinder, for example, will be with the first propulsion unit Choked flow piece 121 is arranged in one end of the immediate chamber cylinder for accommodating fluid, although then fluid herein has the first pushing unit Thrust also will be unable to be normally carried out circulation, and the fluid directly acted at the second propulsion unit of the other end can then pass through The active force of two propulsion units and normally from fluid outlet 11 flow out, at this point, releasing the chamber cylinder internal resistance at the first propulsion unit again Flow part 121 choked flow effect, then fluid herein by again due to the first propulsion unit active force and be normally carried out circulation, from And the operation that the fluid tandem in the second propulsion unit both ends chamber cylinder of the first propulsion unit sum is injected may be implemented.

In another specific embodiment of the utility model, as shown in figure 3, being provided with bluff body on the fluid outlet 11 12, when first propulsion unit and second propulsion unit act on by the active force of elastic potential energy the fluid in chamber cylinder When, the bluff body 12 prevents fluid from flowing out from fluid outlet 11.Likewise, as described above, the setting of choked flow piece 121 here It can be also possible on all fluid outlets 11 on a fluid outlet 11, because the setting of fluid outlet 11 can be Two or more, therefore are not particularly limited the number of bluff body 12 here, wherein the structure type of choked flow piece 121 Can there are many, for example on the fluid channel of fluid outlet 11 offer holding tank, be plugged in holding tank by resistance valve To close and cut off the circulation of fluid, choked flow baffle plate and choked flow jack can also be set on the fluid channel of fluid outlet 11, The circulation for closing and cutting off fluid at choked flow jack, and then even if the first propulsion unit and second are plugged in by choked flow baffle plate When propulsion unit acts on the fluid in chamber cylinder by the active force of elastic potential energy, fluid can not circulate, thus from stream It is flowed out at body outlet 11, and the first propulsion unit and the second propulsion unit will not similarly move, as long as phase can be reached Same technical effect, no longer repeats one by one here.Preferably, if only choked flow piece is arranged in one end of fluid outlet 11 121, for example, by choked flow piece 121 is arranged with one end of the immediate fluid outlet 11 of the first propulsion unit, then fluid herein Although there is the thrust of the first pushing unit also to will be unable to be normally carried out circulation, and directly make at the second propulsion unit of the other end Fluid then can normally be flowed out from fluid outlet 11 by the active force of the second propulsion unit, be pushed away at this point, releasing first again The choked flow effect of choked flow piece 121 in into the fluid outlet 11 at unit, then fluid herein will be again due to the first propulsion unit Active force and be normally carried out circulation, the stream in the second propulsion unit both ends chamber cylinder so as to realize the first propulsion unit sum The operation that body tandem is injected.

In another specific embodiment of the utility model, first propulsion unit and second propulsion unit are all provided with It is equipped with dismountable piston 15, it, also being capable of easy to clean and disassembly while reduction with chamber cylinder inner wall frictional force.

In conclusion the two-way propulsion device of the choke type of the utility model is sequentially injected during washing pipe, realize double To propulsion and real-time fluid flow control, so that the operation for injecting fluid is safer, more orderly, easier.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (10)

1. a kind of two-way propulsion device of choke type characterized by comprising

Chamber cylinder, for accommodating fluid；

First propulsion unit and the second propulsion unit, first propulsion unit and second propulsion unit are arranged at described In chamber cylinder, for applying thrust to the fluid in the chamber cylinder；

Elastic dynamic element, elastic dynamic element setting first propulsion unit and second propulsion unit it Between；

Fixed cell is pushed, for fixing the position of first propulsion unit and second propulsion unit in the chamber cylinder It sets；

When the position of promotion fixed cell fixed first propulsion unit and second propulsion unit in the chamber cylinder When setting, the elastic dynamic element stores elastic potential energy, when releasing the fixed function for pushing fixed cell, the elasticity Dynamical element discharges elastic potential energy and applies active force to first propulsion unit and second propulsion unit；

The chamber cylinder is provided with fluid outlet；

It is provided with bluff body on the fluid outlet, when first propulsion unit and second propulsion unit pass through elastic potential When the active force of energy acts on the fluid in chamber cylinder, the bluff body prevents fluid from flowing out from fluid outlet.

2. the two-way propulsion device of choke type as described in claim 1, which is characterized in that the chamber cylinder includes the first chamber cylinder and the Two chamber cylinders, the first chamber cylinder and the second chamber cylinder are removably tightly connected.

3. the two-way propulsion device of choke type as described in claim 1, which is characterized in that the promotion fixed cell extends radially through The chamber cylinder, first propulsion unit and second propulsion unit, with fixation first propulsion unit and described second Position of the propulsion unit in the chamber cylinder.

4. the two-way propulsion device of choke type as described in claim 1, which is characterized in that first propulsion unit includes promoting Set and first promotes head, and second propulsion unit includes that pushing ram and second promote head, and the pushing ram is mobilizable to be plugged In propulsion set, the elastic dynamic element is set in the propulsion and puts on, and one end is contacted with the first propulsion head, The other end is contacted with the second propulsion head, when releasing the fixed function for pushing fixed cell, the elastic dynamic member Part discharges elastic potential energy and promotes head and described second that head is promoted to apply active force to described first.

5. the two-way propulsion device of choke type as claimed in claim 4, which is characterized in that be provided with the first bolt on the chamber cylinder Hole, the first propulsion head or the propulsion put on and are provided with the second keyhole, and third keyhole is provided on the pushing ram, described It pushes fixed cell to extend radially through first keyhole, second keyhole and the third keyhole to promote with fixation described first Unit and second propulsion unit.

6. the two-way propulsion device of choke type as claimed in claim 4, which is characterized in that be additionally provided with speed in the propulsion set Regulating part is additionally provided with and the matched speed regulating tank of the speed governor, elastic potential in the outer circumferential walls of the pushing ram When can discharge and push first propulsion unit and the second propulsion unit relative movement, the speed governor with The speed regulating tank relative motion, so that first propulsion unit and/or second propulsion unit carry out pulse fortune It is dynamic.

7. the two-way propulsion device of choke type as claimed in claim 6, which is characterized in that the inner bottom surface of the speed regulating tank is Curve-like.

8. the two-way propulsion device of choke type as claimed in claim 6, which is characterized in that in the inside of first propulsion unit Equipped with the slot to match with the speed governor, the speed governor is arranged in corresponding slot.

9. the two-way propulsion device of choke type as described in claim 1, which is characterized in that chamber cylinder one end and/or the other end It is provided with choked flow piece, when first propulsion unit and second propulsion unit act on chamber by the active force of elastic potential energy When fluid in cylinder, the choked flow piece prevents the fluid incoming fluid outlet in chamber cylinder.

10. the two-way propulsion device of choke type as described in any one of claims 1-9, which is characterized in that described first promotes Unit and second propulsion unit are provided with dismountable piston.