CN207561933U - The continuous injector of two-chamber - Google Patents

Abstract

The utility model discloses a kind of continuous injectors of two-chamber, it includes dual chamber syringe, the two-chamber syringe has a cylinder closed at both ends or the cylinder of two one end closings, there are one pistons for each cylinder interior sealing slide fit, each piston is connected with a core bar, and the core bar is along the axially extended barrel end of the cylinder；Include two inner cavities that can alternately stretch in the two-chamber syringe；And water toggling component is drained out, the water toggling component that drains out includes two bailing outlets, two water outlets and the control for being used to control the bailing outlet and the water outlet to switch coupled with the bailing outlet and the water outlet.It alternately stretches simultaneously two inner cavities in the continuous injector of two-chamber, and by the flow direction for draining out the control of water toggling component and draining out water, two inner cavities can be drawn water by two bailing outlets in turn, and pass through the continuously outside water filling of two water outlets in turn.

Description

The continuous injector of two-chamber

Technical field

The utility model belongs to the field of medical instrument technology, and in particular to one kind is used for stone in urinary system intracavitary Minimally Invasive Surgery Water filling device.

Background technology

Stone in urinary system is one of most common disease of Urology Surgery, and illness rate is up to 1%-20%, and easily recurrence, Although benign disease, but urinary system infection contamination may be caused, urinary system ponding or even kidney damage are a kind of The benign disease of larger threat is caused to health.

The minimally-invasive treatment of stone in urinary system has become the conventional means of current stone in urinary system treatment, more at home compared with Big medical centre, more than 90% stone in urinary system operation can be treated by minimally invasive mode.But operation is in itself Patient may be damaged, as the extension of operating time is likely to result in the rising of patient's postoperative infection risk.Therefore shorten Operating time, it is one of important directions of current stone in urinary system intracavitary minimally-invasive treatment instrument research to improve procedure efficiency.

In the operation of stone in urinary system intracavitary minimally-invasive treatment, need assistant that operating doctor is assisted to carry out " water filling " behaviour Make, to keep the clear of surgical field of view and be operated convenient for operating doctor.Firstly, it is necessary to nurse is by the sterile saline bag of sack It cuts off, and pours out that part is spare in sterile chamber on operating table, this process increases the workload of cooperation nurse, and pole Big increases the contaminated risk of sterile liquid so as to increase postoperative infection risk, and there are larger security risks；Assistant The water in container is pumped into syringe using two large capacity syringes and is used alternatingly, carries out water flood operations；In the broken of operation Stone takes stone very high for the continuity of assistant's water filling, instantaneity requirement in the process, due to needing two injections in the prior art Device is used alternatingly, it is meant that surgical procedure can slow down rhythm due to water filling is interrupted；It is past when operation needs a large amount of sustained water injections It can meet operation continuity requirement toward the second assistant help is needed to carry out pumping operation；In short, current endoscope is continuous It is expended in water-rinsing process there is many inefficient, manpowers and the unfavorable factors such as infection risk increases, urgent need is a kind of safe efficient And medical continuous injector input clinical practice easily to operate, so as to improve clinical position efficiency and ensure patient safety.

Publication number is respectively that the patent of WO 87/06455, US3957052 and US2009/0062741 disclose several injections Device, they are that a branch pipe is additionally arranged in the injection head side of syringe for drawing parenteral solution or ascites, while in branch pipe pipe Setting spring non-return valve, diaphragm check valve or switching valve in mouth and injection head outlet, control branch pipe nozzle only import but no export, and note Penetrate head outlet only export but no import.These types of syringe can be achieved not dismantling syringe and can draw parenteral solution or ascites, without There is suck-back phenomenon.Existing patent (application number：CN201510450228.5, publication number：CN105107047 A) disclose one kind Inner cavity flusher, principle is similar with above-mentioned several syringes, and double check valve has been used to avoid suck-back, which leads to Flow quantity can be controlled by crossing the frequency of pressing push rod.Above-mentioned several syringes or inner cavity flusher can solve to draw water to be cut with water filling The problem of cumbersome time-consuming is changed, reduces the contaminated risk of sterile liquid, however in-circulate operation mistake as water filling of drawing water Cheng Zhong, draw water or water filling between necessarily will appear interval, belong to pulsed and drain out water, the stability of injection flow and pressure and Continuity is not high.In addition, during using above-mentioned inner cavity flusher, operator pushes push rod, need to overcome simultaneously the resistance of draining and The pressure of vacuum, causes high effort in practical operation.Meanwhile operator need to be by the way that during water filling, the resistance of push rod judges note in art The number of water, therefore, but has coupled vacuum pressure in push rod thrust and has been unfavorable for control of the operator to water injection rate.

Utility model content

The purpose of this utility model is that for the operation of stone in urinary system intracavitary minimally-invasive treatment, solution is drawn water and water filling The problem of handover operation is cumbersome time-consuming, provide it is a kind of it is easy to operate, can continuous pumpage and water filling the continuous injector of two-chamber.

The continuous injector of two-chamber of the utility model includes：

Dual chamber syringe, the two-chamber syringe have a cylinder closed at both ends or the cylinder of two one end closings, often A cylinder interior sealing slide fit is there are one piston, and each piston to be connected with a core bar, and the core bar is along the cylinder The axially extended barrel end；Including two in the two-chamber syringe can alternately flexible (one another be received while uphold Contracting) inner cavity, the interface of two inner cavities is made of the piston and the cylinder；And

Drain out water toggling component, it is described drain out water toggling component include two bailing outlets, two water outlets and with it is described Bailing outlet and the control for being used to control the bailing outlet and water outlet switch of water outlet coupling；

Wherein, the blind end conduct of the cylinder drains out water end (W.E.) and connects a bailing outlet and a water outlet Mouthful, the bailing outlet can stretch with the corresponding inner cavity and be switched, and the water outlet can be stretched with the corresponding inner cavity It contracts and closes and open.

In the continuous injector of two-chamber, each described inner cavity connects a bailing outlet and a water outlet Mouthful, the bailing outlet and the water outlet can be set on the side for draining out on the end face of water end (W.E.), water end (W.E.) can also being drained out described in On wall, it is each it is described drain out water end (W.E.) one can also be set on end face or on side wall can not only have been connected with the bailing outlet but also can be with The injection port connected with the water outlet.

In one preferred embodiment of the utility model, the cylinder internal diameter closed at both ends of the two-chamber syringe is uniform, sealing The inner barrel is separated the inner cavity to form two coaxial line series connection by the piston of the slide fit in the cylinder, described The both ends of cylinder drain out water end (W.E.) respectively one bailing outlet of connection and a water outlet described in being used as.

Preferably, the core bar is connected as a single entity with the piston and both ends axially penetrate through along the cylinder and stretch out the cylinder The both ends of body, the core bar both ends are connected with first handle respectively, and the cylinder both ends are equipped with and the first handle matched the One handheld component.

Further, two bailing outlets are set on the same side side wall at the cylinder both ends, and two water outlets are set on On the cylinder both ends and the opposite side side wall opposite with the bailing outlet.When certain both ends end face is sufficiently large, bailing outlet and go out The mouth of a river can also be set on the end face of both ends.

Or it is preferred, the core bar front end is connected as a single entity with the piston, and the core bar rear end is pierced by the cylinder Body rear end is simultaneously connected with second handle, and the cylinder back-end is equipped with the second handheld component corresponding with the second handle, and described the Two handheld components are square frame-shaped, and the second handle slide fit is set in second handheld component.

Further, the bailing outlet of the barrel front end and the water outlet be located on the front end face of the cylinder or On the side wall of front end both sides.The bailing outlet and the water outlet of the cylinder back-end are located at cylinder back-end both sides side respectively On wall, certainly when rear end face is sufficiently large, it can also be set on rear end face.

In another preferred embodiment of the utility model, two cylinders of one end closing of the two-chamber syringe are series connection , the blind end of two cylinders, which is located at the intermediate position to connect and shares in one, sets end face；Slide fit is sealed in described in two Two pistons in cylinder form two inner cavities with two cylinders respectively；The head of two core bars respectively with Two pistons connections, the tail portions of two core bars along the extending axially outward open end of cylinder of the cylinder, The tail portion of two core bars is also connected by the connecting rod of peripheral hardware；In close to the interior end face that sets on the side wall of two cylinders Position respectively connects a bailing outlet and a water outlet.In the embodiment, any core bar is pushed and pulled, it is another described Core bar and then moves under the action of connecting rod, and then can simultaneously be moved in the same direction with two pistons so that described in two It alternately stretches simultaneously inner cavity.

In other preferred embodiments of the utility model, two cylinders of one end closing of the two-chamber syringe are in parallel And share a center side wall；Respectively two pistons of the sealing slide fit in two cylinders or respectively with described in two Two core bars of piston connection are connected by a linkage mechanism；Water end (W.E.) is drained out described in the blind end conduct of two cylinders respectively to connect Lead to a bailing outlet and a water outlet.

Two cylinders can be divided into two kinds of situations when being parallel connection：

A kind of is that the blind end of two cylinders is located at the both ends of the two-chamber syringe respectively, and sealing slide fit is in described in two Two pistons in cylinder form two inner cavities with two cylinders respectively；The head of two core bars respectively with Two piston connections, the tail portion of two core bars is along the extending axially outward open end of cylinder of the cylinder； The linkage mechanism being connect with two core bars includes the connecting rod for connecting the tail portion of two core bars.Such situation is with before " two cylinders of one end closing are series connection " in text is similar, pushes and pulls any core bar, another core bar is in connecting rod Under the action of and then move, and then can simultaneously be moved in the same direction with two pistons so that two inner cavities replace simultaneously It stretches on ground.

Another kind is that the blind end of two cylinders is located at the same end of the two-chamber syringe, is connected respectively with two pistons The core bar connect stretches out the open end of the cylinder respectively.In one preferred embodiment, the linkage mechanism and two pistons Connection, including a capstan winch and a draught line, the capstan winch is located at the open end of two cylinders and on the center side wall, The draught line is connected to around the capstan winch and both ends on two pistons.Another preferred embodiment, the gear Structure is connect with two core bars, the articulation piece including V-arrangement, and the apex angle among the articulation piece is hinged on the center side wall, The both ends of the articulation piece are hinged respectively with the two core bar ends；Third handle is extended at the both ends of the articulation piece, described On cylinder lateral wall third handheld component is equipped with the third handle corresponding position.

When two cylinders are parallel connections, two bailing outlets are set on the both sides side wall of the two cylinder blind ends, two institutes Water outlet is stated on the blind end end face of two cylinders.Certainly, two water outlets can also be set on the two cylinder closings On the both sides side wall at end, and two bailing outlets are set on the blind end end face of two cylinders.Or the water outlet and institute State bailing outlet while on the blind end end face of the cylinder or side wall.

In some preferred embodiments of the utility model, the control is set on each bailing outlet and each water outlet In spring check valve or diaphragm type check valve.

In other preferred embodiments of the utility model, the water toggling component that drains out is two four-ways or 3-position 4-way Reversal valve, the bailing outlet and the water outlet are the inlet and outlet of the reversal valve, and the control is inside the reversal valve Spool, the reversal valve is additionally provided with two connectors, the cylinder two described in drain out water end (W.E.) and be respectively equipped with an injection port, two The injection port is connect respectively with two connectors.

There is two secondary chambers and a conduct control in one preferred embodiment of the utility model, inside the reversal valve Piston valve core, be equipped with cavity between the two secondary chamber lower parts, the piston valve core interlude diameter is less than both ends and is threaded through In the cavity, the piston valve core interlude fixing sleeve is equipped with a sealing ring with cavity sealing slide fit；Go out described in two The mouth of a river is respectively arranged on the two secondary chambers and can simultaneously be closed relatively with remote side by the end face of the piston valve core, two bailing outlets Being respectively arranged on the bottom of the two secondary chambers can simultaneously be closed by piston valve core both ends bottom surface, and two connectors are respectively arranged on two The top of the pair chamber.

The reversal valve can also use two four-ways or solenoid directional control valve valve, the hand of 3-position 4-way that market can purchase Dynamic reversal valve, servomotor driven change valve.

The beneficial effects of the utility model：

Tool is there are two the inner cavity in the continuous injector of two-chamber, while the inner cavity is communicated with bailing outlet and water outlet And be coupled with and drain out water toggling component, the bailing outlet and water outlet oriented flow can control by the water toggling component that drains out It is logical, and two inner cavities share a piston or two pistons of two connection linkages, by continuously push and pull the core bar with The piston can make two inner cavities while alternately stretch when sliding, when an inner cavity is shunk, corresponding water outlet is opened Leading to and bailing outlet closure, and then can smoothly be discharged, while another inner cavity is upheld, corresponding water outlet is closed and bailing outlet is opened, And then can smoothly draw water, two inner cavities alternately stretch alternately continuously intermittently not drawn water and be discharged.It compares In existing syringe water filling, the continuous injector of two-chamber of the utility model is not only easy to operate, it is ensured that in surgical procedure The stability and continuity of injection flow and pressure, and the time of switching syringe and assistant's repetitive operation can be effectively reduced, And then can effectively shorten operating time, procedure efficiency is improved, reduces the occurrence risk of operation related complication.

Description of the drawings

Figure 1A is the system schematic during the use of the continuous injector of two-chamber of the utility model embodiment 1；

Figure 1B is the sectional view of the continuous injector of two-chamber of the utility model embodiment 1；

Fig. 1 C are the graphical diagram of the continuous injector of two-chamber of the utility model embodiment 1；

Fig. 2A is the sectional view of the continuous injector of two-chamber of the utility model embodiment 2；

Fig. 2 B are the graphical diagram of the continuous injector of two-chamber of the utility model embodiment 2；

Fig. 3 is the sectional view of the continuous injector of two-chamber of the utility model embodiment 3；

Fig. 4 A are the sectional view of the continuous injector of two-chamber of the utility model embodiment 4；

Fig. 4 B are sectional perspective schematic diagram at A in Fig. 4；

Fig. 5 A are the stereoscopic schematic diagram of the continuous injector of two-chamber of the utility model embodiment 5；

Fig. 5 B are the sectional view of the reversal valve of the continuous injector of two-chamber of the utility model embodiment 5；

Fig. 5 C are the graphical diagram of the continuous injector of two-chamber of the utility model embodiment 5；

Fig. 6 and Fig. 7 is the graphical diagram of the continuous injector of two-chamber of the utility model other embodiment；

Fig. 8 A~8C are the graphical diagram of the reversal valve of the continuous injector of the utility model two-chamber.

Reference numeral：

The continuous injector 1 of two-chamber, draw water conduit 2, water bottle (bag) 3, brine frame 4, water output duct 5；

Monotubular cylinder 111, piston 112, bailing outlet 113a and 113b, water outlet 114a and 114b, core bar 115 are first-hand Handle 116a, the first handheld component 117a, second handle 116b, the second handheld component 117b, check valve 118；

Bitubular cylinder 121, piston 122a and 122b, bailing outlet 123a and 123b, water outlet 124a and 124b, core bar 125a And 125b, draught line 126, capstan winch 127, articulation piece 128, third handle 128a, third handheld component 129；

Reversal valve 130, secondary chamber 131, piston valve core 132, bailing outlet 133a and 133b, water outlet 134a and 134b, connection Mouth 135, cavity 136, sealing ring 137.

Specific embodiment

Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail.It should be understood that following embodiment is only For illustrating the utility model not for restriction the scope of the utility model.

Embodiment 1

Figure 1A is the system schematic during a preferred embodiment use of the continuous injector of the utility model two-chamber.It should Two-chamber continuous injector 1 of the system including the utility model, the conduit 2 that draws water, water bottle (bag) 3, brine frame 4, water output duct 5.It is double Connection water bottle (bag) 3 after two bailing outlets on continuous 1 top of injector of chamber are converged by the conduit 2 that draws water, water outlet is by going out Connection endoscope realizes the continuous water filling into human body after water conduit 5 converges.

As shown in Figure 1B, the continuous injector 1 of two-chamber includes：Monotubular cylinder 111, piston 112, bailing outlet 113a and 113b, Water outlet 114a and 114b, core bar 115, first handle 116a, the first handheld component 117a.

Monotubular cylinder 111 is closed at both ends, and nominal volume can select according to actual needs, such as 20mL, 50mL or 100mL etc. Deng.Piston 112 seals slide fit in monotubular cylinder 111 and will separate to form what two coaxial lines were connected inside straight line syringe 111 Inner cavity, the both ends of monotubular cylinder 111 are set on the upside at 111 both ends of monotubular cylinder as water end (W.E.), bailing outlet 113a and 113b is drained out On wall, two water outlets 114 are set in the lower wall at 111 both ends of monotubular cylinder.Piston 112 be located at 115 centre position of core bar and It is connected as a single entity with core bar 115, core bar 115 is threaded through in an axial direction in monotubular cylinder 111 and both ends are pierced by 111 liang of monotubular cylinder End, 115 both ends of core bar are connected as a single entity respectively with first handle 116a, and the first handheld component 117a is set on 111 both ends of monotubular cylinder And it is matched with first handle 116a.

Check valve 118 (spring or diaphragm type) is respectively equipped in bailing outlet 113a and 113b, water outlet 114a and 114b, It forms and drains out water toggling component (dotted box portion in simple graphical diagram shown in see Fig. 1 C), in bailing outlet 113a and 113b Check valve controls bailing outlet only import but no export, the check valve control only export but no import in water outlet 114a and 114b.

Operation principle：By the way that core bar 115 is pushed to move right, right side inner cavity is compressed, unidirectional in the bailing outlet 113a of right side Valve is stopped, and the check valve in water outlet 114a is opened under pressure, realizes the water outlet of right side inner cavity；Meanwhile left side Inner cavity forms negative pressure, and the check valve in water outlet 114b on the inner cavity of left side is stopped, and the check valve in bailing outlet 113b exists It is opened under the action of negative pressure, realizes drawing water for left side inner cavity；Vice versa.The reciprocating motion of promotion core bar 115 alternately and repeatedly The continuous of the continuous injector of two-chamber can be realized to draw water and be discharged.

Embodiment 2

Fig. 2A is the sectional view of the continuous injector of two-chamber of another preferred embodiment of the utility model, and simple graphical diagram is as schemed Shown in 2B.Compared to embodiment 1, difference lies in 115 front end of core bar is connected as a single entity with piston 112, and 115 rear end of core bar is worn Go out 111 rear end of monotubular cylinder, core bar 115 is only in rear end even there are one second handle 116b, correspondingly, monotubular cylinder 111 is also only In rear end, one the second handheld component 117b, while the front and rear push-and-pull of second handle 116b for convenience, the second Handheld Division are set Part 117b is improved to square frame-shaped, and second handle 116b slide fits are in the second handheld component 117b.In addition monotubular cylinder 111 rear end Bailing outlet 113a and water outlet 114a is located at respectively above and below 111 rear end of monotubular cylinder on the side wall of both sides, the bailing outlet 113b of front end It is set on water outlet 114b on the front end face of monotubular cylinder 111.Its operation principle is the same as embodiment 1.

Embodiment 3

Sectional views of the Fig. 3 for the continuous injector of two-chamber of another preferred embodiment of the utility model, the continuous water filling of the two-chamber Device includes：Bitubular cylinder 121, piston 122a and 122b, bailing outlet 123a and 123b, water outlet 124a and 124b, core bar 125a With 125b, draught line 126, capstan winch 127.

Bitubular cylinder 121 is symmetrical, and including the cylinder two side by side, two cylinders are closed in the same end, each side neck The nominal volume of body can select according to actual needs, such as 20mL, 50mL or 100mL.Piston 122a and 122b seal cunning respectively In two cylinders assigned in bitubular cylinder 121, two inner cavities are separately constituted with two cylinders.Capstan winch 127 is set on the spacious of two cylinders On the center side wall of mouth end, draught line 126 is connected to around capstan winch 127 and both ends on piston 122a and 122b.Two cylinders As water end (W.E.) is drained out, bailing outlet 123a and 123b are set on the blind end end face of two cylinders blind end, water outlet 124a and (envelope can also be exchanged or all be set on to 124b by draining out the position at the mouth of a river certainly on the both sides side wall of two cylinder blind ends On closed end end face).

Operation principle：By pushing the core bar 125a on right side, right side inner cavity is compressed, and check valve stops at the bailing outlet 123a of right side It only works, water outlet 124a check valves are opened under pressure, realize the water outlet of right side inner cavity；Meanwhile the core bar in left side 125b is drawn out under the traction action of draught line 126, makes corresponding cylinder and interior intracavitary generates negative pressure, the water outlet on the inner cavity of left side Mouth 124b check valves are stopped, and the check valve at bailing outlet 123b is opened under the action of negative pressure, realize drawing for left side inner cavity Water；Vice versa.Promotion core bar 125a and 125b alternately and repeatedly can be realized the continuous of the continuous injector of two-chamber and draw water and go out Water.

Embodiment 4

Sectional views of Fig. 4 A for the continuous injector of two-chamber of another preferred embodiment of the utility model, the continuous water filling of the two-chamber Device includes：Bitubular cylinder 121, piston 122a and 122b, bailing outlet 123a and 123b, water outlet 124a and 124b, core bar 125a With 125b, articulation piece 128, third handle 128a, third handheld component 129.

Bitubular cylinder 121 is symmetrical, and including the cylinder two side by side, two cylinders are closed in the same end, each side neck The nominal volume of body can select according to actual needs, such as 20mL, 50mL or 100mL.Piston 122a and 122b seal cunning respectively In two cylinders assigned in bitubular cylinder 121, two inner cavities are separately constituted with two cylinders.Piston 122a and 122b pass through respectively Hinge is connect with one end of two core bar 125a and 125b, and two core bar 125a and the 125b other ends stretch out the open end of cylinder.It is hinged Part 128 is symmetrical V-arrangement, and intermediate apex angle is hinged on the open end center side wall of two cylinders, both ends respectively with two core bars The end of 125a and 125b is hinged.Third handle 128a is extended at the both ends of articulation piece 128, in third on the side wall of two cylinders Handle 128a corresponding positions are equipped with third handheld component 129, as shown in Figure 4 B.Two cylinder blind ends are drawn as water end (W.E.) is drained out The mouth of a river 123a and 123b are set on the blind end end face of two cylinders, and water outlet 124a and 124b are set on two cylinder blind ends On the side wall of both sides.

Operation principle：By the third handle 128a on the right side of pressing, the core bar 125a on right side is pushed, right side inner cavity is compressed, Check valve is stopped at the bailing outlet 123a of right side, and water outlet 124a check valves are opened under pressure, realizes right side inner cavity Water outlet；Meanwhile the third handle 128a in left side is tilted, the core bar 125b in the left side quilt under the traction action of third handle 128 It pulls out, makes corresponding cylinder and interior intracavitary generates negative pressure, the water outlet 124b check valves on the inner cavity of left side are stopped, bailing outlet Check valve at 123b is opened under the action of negative pressure, realizes drawing water for left side inner cavity；Vice versa.Pressing alternately and repeatedly is left The third handle 128a on right side, you can realize that the continuous of the continuous injector of two-chamber draws water and be discharged.

Embodiment 5

Fig. 5 A are the stereogram of the continuous injector of two-chamber of another preferred embodiment of the utility model, as embodiment 3 Modification also includes bitubular cylinder 121, piston 122a and 122b, core bar 125a and 125b, draught line 126 and capstan winch 127,121 internal structure of bitubular cylinder is same as Example 3.It is with the difference of embodiment 3, the end that draws water of bitubular cylinder 121 Side wall and end face on bailing outlet and water outlet be no longer set, but two injection ports are set on end face, two injection ports with Reversal valve 130 connects, and realizes that alternating continuously drains out water using reversal valve 130 as water toggling component is drained out.As shown in Figure 5 B, it changes To the inside of valve 130, there are two pair chamber 131a and 131b and piston valve cores 132 for tool, and the bottom of secondary chamber 131a and 131b is set respectively There are bailing outlet 133a and 133b, secondary chamber 131a and 131b is opposite to be respectively equipped with water outlet 134a and 134b, secondary chamber with remote outside 131a and 131b tops are respectively equipped with connector 135 for being connect with the injection port of bitubular cylinder 121.Under secondary chamber 131a and 131b Cavity 136 is equipped between portion, 132 interlude diameter of piston valve core is less than both ends and is threaded through in cavity 136, piston valve core 132 Interlude fixing sleeve set there are one with cavity 136 sealing cooperation sealing ring 137；When piston valve core 132 moves left and right, both ends end Face alternately closes off water outlet 134a and 134b, and bailing outlet 133a and 133b are alternately respectively sealed in both ends bottom surface It closes.

Operation principle：By pushing the core bar 125a on right side, the right side inner cavity of bitubular cylinder 121 and the right side of reversal valve 130 Side pair chamber 131a compresses, meanwhile, the core bar 125b in left side is drawn out under the traction action of draught line 126, bitubular cylinder 121 The left side pair chamber 131b of left side inner cavity and reversal valve 130 generates the effect of negative pressure, piston valve core 132 and sealing ring 137 in hydraulic pressure Under move to the left, left side water outlet 124b and right side bailing outlet 123a are closed at both ends by piston valve core 132 respectively, and right side goes out Mouth of a river 124a and left side bailing outlet 123b is naturally open, realizes right side and is discharged, left side draws water.Vice versa.Alternately and repeatedly It pushes the core bar 125a and 125b of left and right sides that the continuous of the continuous injector of two-chamber can be realized to draw water and be discharged.

It is to be modified based on embodiment 4, with embodiment in an other preferred embodiment of the utility model 5 is similar, and bailing outlet and water outlet are no longer set on the side wall at the end that draws water of same bitubular cylinder 121 and end face, but is being held Two injection ports are set on face, and two injection ports are directly connected to reversal valve 130 or are connect by conduit, and such situation is with implementing 5 operation principle of example is identical, and simple graphical diagram is as shown in Figure 5 C.

It is to be modified based on Examples 1 and 2, simultaneously in the other preferred embodiment of the utility model With reference to embodiment 5, the reversal valve 130 in embodiment 5 may equally be well connected on the monotubular cylinder 111 of Examples 1 and 2, as drawing Water outlet toggling component alternately continuously draws water and is discharged to realize.As shown in Figures 6 and 7, at this point, no longer being set on monotubular cylinder 111 Bailing outlet and water outlet are put, but two injection ports is set to be used for two inner cavities of cylinder 111 and change on monotubular cylinder 111 It is directly connected to valve 130 or is connected by conduit.

In the various embodiments described above, the also replaceable solenoid directional control valve of two four-ways that can purchase using market of reversal valve 130 Valve (such as Fig. 8 A), hand-operated direction valve, servomotor driven change valve, the solenoid directional control valve (such as Fig. 8 B) of also optional matched 3-position 4-way, Hand-operated direction valve (such as Fig. 8 C), servomotor driven change valve can equally be realized and alternately continuously draw water and be discharged.

Reversal valve can be manually or automatically reversal valve control (such as spool) realize commutation, it is preferred that reversal valve control Part is coupled with the stroke of the core bar in cylinder, and when core bar is pushed to be run with piston, two inner cavities are alternately flexible, commutate simultaneously The switch of valve control switching control bailing outlet and water outlet realizes that inner cavity is shunk water outlet and opened, and bailing outlet is beaten when inner cavity is upheld It opens.Promotion core bar alternately and repeatedly can be realized the continuous of the continuous injector of two-chamber and drain out water.

Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that the common skill for this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (16)

1. a kind of continuous injector of two-chamber, which is characterized in that it includes：

Dual chamber syringe, the two-chamber syringe have a cylinder closed at both ends or the cylinder of two one end closings, Mei Gesuo Cylinder interior sealing slide fit is stated there are one piston, each piston is connected with a core bar, and the core bar is along cylinder axial direction Stretch out the barrel end；Include two inner cavities that can alternately stretch in the two-chamber syringe, the interface of two inner cavities is by institute Piston is stated to form with the cylinder；And

Water toggling component is drained out, the water toggling component that drains out includes two bailing outlets, two water outlets and draws water with described Mouth and the control for being used to control the bailing outlet and water outlet switch of water outlet coupling；

Wherein, the blind end conduct of the cylinder drains out water end (W.E.) and connects a bailing outlet and a water outlet, institute Stating bailing outlet can be as the corresponding inner cavity be stretched and is switched, and the water outlet can stretch with the corresponding inner cavity and be closed It opens.

2. the continuous injector of two-chamber as described in claim 1, which is characterized in that the cylinder closed at both ends of the two-chamber syringe Internal diameter is uniform, and the piston of the sealing slide fit in the cylinder separates the inner barrel to form what two coaxial lines were connected The inner cavity, the both ends of the cylinder be used as described in drain out water end (W.E.) respectively one bailing outlet of connection and a water outlet.

3. the continuous injector of two-chamber as claimed in claim 2, which is characterized in that the core bar and the piston be connected as a single entity and Both ends axially penetrate through the both ends for stretching out the cylinder along the cylinder, and the core bar both ends are connected with first handle respectively, described Cylinder both ends are equipped with and matched first handheld component of the first handle.

4. the continuous injector of two-chamber as claimed in claim 3, which is characterized in that two bailing outlets are set on the cylinder both ends The same side side wall on, two water outlets are set on the cylinder both ends and the opposite side side wall opposite with the bailing outlet.

5. the continuous injector of two-chamber as claimed in claim 2, which is characterized in that the core bar front end is linked as one with the piston Body, the core bar rear end are pierced by the cylinder back-end and are connected with second handle, and the cylinder back-end is equipped with and described second Corresponding second handheld component of handle, second handheld component are square frame-shaped, and the second handle slide fit is set on described second In handheld component.

6. the continuous injector of two-chamber as claimed in claim 5, which is characterized in that the bailing outlet of the barrel front end and institute Water outlet is stated to be located on the front end face of the cylinder or on the side wall of front end both sides.

7. the continuous injector of two-chamber as described in claim 1, which is characterized in that two of one end closing of the two-chamber syringe Cylinder is series connection, and the blind end of two cylinders, which is located at the intermediate position to connect and shares in one, sets end face；Seal slide fit Two pistons in two cylinders form two inner cavities with two cylinders respectively；Two core bars Head is connect respectively with two pistons, and the tail portion of two core bars is opened along the extending axially outward cylinder of the cylinder The end opened, the tail portion of two core bars are also connected by the connecting rod of peripheral hardware；In close to described on the side wall of two cylinders The position for inside setting end face respectively connects a bailing outlet and a water outlet.

8. the continuous injector of two-chamber as described in claim 1, which is characterized in that two of one end closing of the two-chamber syringe Cylinder is an in parallel and shared center side wall；Respectively two pistons of the sealing slide fit in two cylinders or point Two core bars not connect with two pistons are connected by a linkage mechanism；The blind end of two cylinders is drawn described in being used as Water outlet respectively connects a bailing outlet and a water outlet.

9. the continuous injector of two-chamber as claimed in claim 8, which is characterized in that the blind end of two cylinders is located at institute respectively The both ends of two-chamber syringe are stated, two pistons of the sealing slide fit in two cylinders form respectively with two cylinders Two inner cavities；The head of two core bars is connect respectively with two pistons, and the tail portion of two core bars is along described The extending axially outward open end of cylinder of cylinder；The linkage mechanism being connect with two core bars includes will be described in two The connecting rod of the tail portion connection of core bar.

10. the continuous injector of two-chamber as claimed in claim 8, which is characterized in that the blind end of two cylinders is located at described The same end of two-chamber syringe stretches out the open end of the cylinder with the core bar that two pistons are connect respectively respectively；With two The linkage mechanism of the piston connection includes a capstan winch and a draught line, and the capstan winch is located at the open end of two cylinders And on the center side wall, the draught line is connected to around the capstan winch and both ends on two pistons.

11. the continuous injector of two-chamber as claimed in claim 8, which is characterized in that the blind end of two cylinders is located at described The same end of two-chamber syringe stretches out the open end of the cylinder with the core bar that two pistons are connect respectively respectively；With two The linkage mechanism of core bar connection includes the articulation piece of V-arrangement, and the apex angle among the articulation piece is hinged on the centre On side wall, the both ends of the articulation piece are hinged respectively with the two core bar ends；Extend third hand in the both ends of the articulation piece Handle is equipped with third handheld component on the cylinder lateral wall with the third handle corresponding position.

12. the continuous injector of two-chamber as described in claim 10 or 11, which is characterized in that two bailing outlets are set on described in two On the both sides side wall of cylinder blind end, two water outlets are set on the blind end end face of two cylinders.

13. such as the continuous injector of claim 1~11 any one of them two-chamber, which is characterized in that the control is set on each The bailing outlet and spring check valve or diaphragm type check valve in each water outlet.

14. the continuous injector of two-chamber as described in any one of claim 1,2,3,5,7,8,9,10 and 11, which is characterized in that The water toggling component that drains out is changed for two four-ways or the reversal valve of 3-position 4-way, the bailing outlet and the water outlet to be described To the inlet and outlet of valve, the control is the spool inside the reversal valve, and the reversal valve is additionally provided with two connectors, the cylinder Water end (W.E.) is drained out described in the two of body and is respectively equipped with an injection port, two injection ports are connect respectively with two connectors.

15. the continuous injector of two-chamber as claimed in claim 14, which is characterized in that have inside the reversal valve two secondary chambers and One piston valve core as the control is equipped with cavity, the piston valve core interlude diameter between the two secondary chamber lower parts It less than both ends and is threaded through in the cavity, the piston valve core interlude fixing sleeve is equipped with one and cavity sealing slide fit Sealing ring；Two water outlets are respectively arranged on the two secondary chambers and can simultaneously be sealed relatively with remote side by the end face of the piston valve core It closes, the bottom that two bailing outlets are respectively arranged on the two secondary chambers can simultaneously be closed by piston valve core both ends bottom surface, described in two Connector is respectively arranged on the top of the two secondary chambers.

16. the continuous injector of two-chamber as claimed in claim 14, which is characterized in that the reversal valve is solenoid directional control valve Valve, hand-operated direction valve or servomotor driven change valve.